Refine
Year of publication
Document Type
- Doctoral Thesis (341)
- Article (123)
- Working Paper (19)
- Book (15)
- Conference Proceedings (9)
- Part of Periodical (5)
- Contribution to a Periodical (4)
- Habilitation (3)
- Master's Thesis (2)
- Other (2)
Language
- English (525) (remove)
Has Fulltext
- yes (525) (remove)
Keywords
- Stress (27)
- Modellierung (20)
- Fernerkundung (18)
- Optimierung (18)
- Deutschland (16)
- Hydrocortison (13)
- Satellitenfernerkundung (13)
- Cortisol (9)
- Europäische Union (9)
- Finanzierung (9)
- cortisol (9)
- stress (9)
- China (8)
- Meereis (8)
- Atmosphärische Grenzschicht (7)
- COVID-19 (7)
- Englisch (7)
- Lernen (7)
- Partielle Differentialgleichung (7)
- Stressreaktion (7)
- Amtliche Statistik (6)
- Approximation (6)
- Entrepreneurship (6)
- Maschinelles Lernen (6)
- Motivation (6)
- Nachhaltigkeit (6)
- Neuroendokrines System (6)
- Physiologische Psychologie (6)
- Statistik (6)
- Arctic (5)
- Arktis (5)
- Aufmerksamkeit (5)
- Depression (5)
- Funktionalanalysis (5)
- Germany (5)
- Japan (5)
- Klima (5)
- Klimaänderung (5)
- Kognition (5)
- Luxemburg (5)
- Mathematik (5)
- Pandemie (5)
- Psychotherapie (5)
- Religion (5)
- Remote Sensing (5)
- Rheinland-Pfalz (5)
- Risikokapital (5)
- Shape Optimization (5)
- Stichprobe (5)
- Therapieerfolg (5)
- remote sensing (5)
- Analysis (4)
- Anpassung (4)
- Approximationstheorie (4)
- Boden (4)
- Degradation (4)
- Elektroencephalographie (4)
- Evaluation (4)
- Familienbetrieb (4)
- Funktionelle NMR-Tomographie (4)
- Funktionentheorie (4)
- Gedächtnis (4)
- Gestaltoptimierung (4)
- Gesundheit (4)
- Grenzgebiet (4)
- Höhlensalamander (4)
- Kanada (4)
- Knowledge (4)
- Langzeitgedächtnis (4)
- Laptewsee (4)
- Learning (4)
- Lebensmittel (4)
- Literatur (4)
- MODIS (4)
- Memory (4)
- Meta-Analysis (4)
- Monte-Carlo-Simulation (4)
- Nichtlineare Optimierung (4)
- Numerische Strömungssimulation (4)
- Prognose (4)
- Salamander (4)
- Schmerz (4)
- Schätzung (4)
- Selbstbild (4)
- Simulation (4)
- Unternehmen (4)
- Unternehmensgründung (4)
- Wissen (4)
- fMRI (4)
- survey statistics (4)
- Affekt (3)
- Aggression (3)
- Aktienmarkt (3)
- Algorithmus (3)
- Ambivalenz (3)
- Antarktis (3)
- Arbeitsgedächtnis (3)
- Arbeitsplatz (3)
- Biomonitoring (3)
- Bodenerosion (3)
- Bodenmikrobiologie (3)
- Covid-19 (3)
- Crowdfunding (3)
- Deep learning (3)
- Diskriminierung (3)
- Einstellung (3)
- Emotionsregulation (3)
- Entrepreneurial Finance (3)
- Erhebungsverfahren (3)
- Europe (3)
- Film (3)
- Gefühl (3)
- Gehirn (3)
- Genetische Variabilität (3)
- Geschlechtsunterschied (3)
- Griechenland (3)
- Hadamard product (3)
- Haushalt (3)
- Hochwasser (3)
- Hydrologie (3)
- Identität (3)
- Immunsystem (3)
- Individuum (3)
- Information (3)
- Interaktion (3)
- Internet (3)
- Investor (3)
- Katabatischer Wind (3)
- Kombinatorische Optimierung (3)
- Kompositionsoperator (3)
- Landsat (3)
- Landwirtschaft (3)
- Laptev Sea (3)
- Lidar (3)
- Modell (3)
- Navier-Stokes-Gleichung (3)
- Niederschlag (3)
- Numerische Mathematik (3)
- Operatortheorie (3)
- Optimale Kontrolle (3)
- Parameterschätzung (3)
- Partnerwahl (3)
- Persönlichkeitsstörung (3)
- Polargebiete (3)
- Polynja (3)
- Psychobiologie (3)
- Quadratische Optimierung (3)
- Regressionsmodell (3)
- Remote sensing (3)
- Rutschung (3)
- SARS-CoV-2 (3)
- Schätztheorie (3)
- Selbsteinschätzung (3)
- Selbstregulation (3)
- Sequentielle quadratische Optimierung (3)
- Stadt (3)
- Strahlstrom (3)
- Taiwan (3)
- Therapieabbruch (3)
- USA (3)
- Umfrage (3)
- Universalität (3)
- Verfassungsgerichtsbarkeit (3)
- Visualisierung (3)
- Wald (3)
- Waldinventur (3)
- Wasserversorgung (3)
- atmospheric boundary layer (3)
- behavioral genetics (3)
- climate change (3)
- episodic memory (3)
- long-term memory (3)
- low-level jets (3)
- optimal control (3)
- proper orthogonal decomposition (3)
- regional climate model (3)
- sea ice (3)
- 20th Century (2)
- Abfluss (2)
- Abfrageverarbeitung (2)
- Abwasser (2)
- Adaptation (2)
- Adjungierte Differentialgleichung (2)
- Aerodynamic Design (2)
- Affektive Bindung (2)
- Alter (2)
- Ambivalence (2)
- Angola (2)
- Angststörung (2)
- Anlageverhalten (2)
- Antarctic (2)
- Argania spinosa (2)
- Asien (2)
- Aufsatzsammlung (2)
- Augenfolgebewegung (2)
- Automatentheorie (2)
- Beschäftigung (2)
- Big Data (2)
- Bildverarbeitung (2)
- Binomialverteilung (2)
- Biodiversität (2)
- Biogeographie (2)
- Bodenverschmutzung (2)
- Bodenwasser (2)
- Border Studies (2)
- Brustkrebs (2)
- CCLM (2)
- COSMO-CLM (2)
- Calibration (2)
- Chemische Analyse (2)
- Chinesisch (2)
- Cluster-Analyse (2)
- Datenassimilation (2)
- Datenerhebung (2)
- Deutschland / Geschichte 1871-1918 (2)
- Digitalisierung (2)
- Discrete optimization (2)
- Diskursanalyse (2)
- Distractor-Response Binding (2)
- Diversifikation (2)
- Dopamin (2)
- Drift (2)
- Einzugsgebiet (2)
- Elektroencephalogramm (2)
- Emotion (2)
- Emotionales Verhalten (2)
- Energiepflanzen (2)
- Entscheidungsfindung (2)
- Episodisches Gedächtnis (2)
- Ereigniskorreliertes Potenzial (2)
- Essstörung (2)
- Europa (2)
- European Union (2)
- Evaluative Konditionierung (2)
- Evapotranspiration (2)
- Experiment (2)
- Fallbasiertes Schließen (2)
- Family firm (2)
- Fettsucht (2)
- Feuchtgebiet (2)
- Fibromyalgie (2)
- Filmprogramm (2)
- Filmtheater / Publikum (2)
- Finanzierungsmuster (2)
- Folter (2)
- Forst (2)
- Frau (2)
- Froschlurche (2)
- Führungskraft (2)
- GPU (2)
- Geldpolitik (2)
- Genanalyse (2)
- Generationsbeziehung (2)
- Genetik (2)
- Genexpression (2)
- Geoinformation Processing (2)
- Geschlecht (2)
- Ghana (2)
- Glucocorticosteroide (2)
- Glucocorticosteroidrezeptor (2)
- Gravity Model (2)
- Gravitätsmodell (2)
- Greenland (2)
- Grenzüberschreitende Kooperation (2)
- Grönland (2)
- HPA (2)
- HPA axis (2)
- Hadamard, Jacques (2)
- Hadamardprodukt (2)
- Handlungsorientierung (2)
- Herztransplantation (2)
- Hochschule (2)
- Homologische Algebra (2)
- Humangenetik (2)
- Humus (2)
- Hybrid entrepreneurship (2)
- Hyperzyklizität (2)
- Hypothalamus-Hypophysen-Nebennierenrinden-Achse (2)
- Illegale Einwanderung (2)
- Imperial Germany (2)
- Information Retrieval (2)
- Infrarotthermographie (2)
- Insulin (2)
- Integration (2)
- Intelligenz (2)
- Interozeption (2)
- Investitionsentscheidung (2)
- Jugend (2)
- Kaiserreich (2)
- Kapitalstruktur (2)
- Kind (2)
- Kinoprogramm (2)
- Kirche (2)
- Kognitive Psychologie (2)
- Kognitive Verhaltenstherapie (2)
- Konvexe Optimierung (2)
- Kriging (2)
- Kultur (2)
- Land Degradation (2)
- Landdegradation (2)
- Landnutzung (2)
- Larve (2)
- Law of the European Union (2)
- Leistungsmotivation (2)
- Long-term memory (2)
- Luftbild (2)
- Lyrik (2)
- MODIS ice surface temperatures (2)
- Mageninhalt (2)
- Marokko (2)
- Matching (2)
- Mensch (2)
- Messung (2)
- Metaanalyse (2)
- Methode (2)
- Mittelmeerraum (2)
- Mittelstand (2)
- Mixed-integer optimization (2)
- Monitoring (2)
- Männlichkeit (2)
- Nahrung (2)
- Nanopartikel (2)
- Navier-Stokes equations (2)
- Netzwerkanalyse (2)
- Neuronales Netz (2)
- Nichtkonvexe Optimierung (2)
- Numerical Optimization (2)
- Näherungsverfahren (2)
- OBDD (2)
- OBDDs (2)
- Official Statistics (2)
- One-Shot (2)
- Operations Research (2)
- Ozon (2)
- Parameteridentifikation (2)
- Patient (2)
- Perfect competition (2)
- Phänologie (2)
- Politisches System (2)
- Polynya (2)
- Portfoliomanagement (2)
- Private Equity (2)
- Psychological stress (2)
- Psychology (2)
- Psychometrie (2)
- Psychosoziale Situation (2)
- Psychotherapeut (2)
- Recht der Europäischen Union (2)
- Reduktion (2)
- Regulierung (2)
- Religionsgemeinschaft (2)
- Religionsrecht (2)
- Risikofaktor (2)
- Risikomanagement (2)
- Robust optimization (2)
- Räumliche Statistik (2)
- Rückmeldung (2)
- Salamanders (2)
- Schizophrenie (2)
- Schreckreaktion (2)
- Schule (2)
- Schulleistung (2)
- Schätzfunktion (2)
- Schüler (2)
- Selbstkontrolle (2)
- Selbstwirksamkeit (2)
- Self-Regulation (2)
- Sexualität (2)
- Shape Spaces (2)
- Sharing Economy (2)
- Silber (2)
- Social Media (2)
- Social entrepreneurship (2)
- Sodar (2)
- Southeast Asia (2)
- Sozialpsychologie (2)
- Spanien (2)
- Staatsgrenze (2)
- Stereotyp (2)
- Stiftungsunternehmen (2)
- Stimme (2)
- Strafrecht (2)
- Strafverfahren (2)
- Stressor (2)
- Struktur (2)
- Strömungsmechanik (2)
- Student (2)
- Stummfilm (2)
- Sustainability (2)
- Synchronisierung (2)
- Teilzeitselbstständigkeit (2)
- Temperatur (2)
- Test (2)
- Thailand (2)
- Topologieoptimierung (2)
- Toxizität (2)
- Trier (2)
- Trockenwald (2)
- Trust-Region-Algorithmus (2)
- Umweltüberwachung (2)
- Universität (2)
- Unsicherheit (2)
- Unternehmenskauf (2)
- Unternehmenswachstum (2)
- Unternehmernachfolge (2)
- Validierung (2)
- Vegetation (2)
- Vegetatives Nervensystem (2)
- Venture Capital (2)
- Verfassungsrecht (2)
- Vergessen (2)
- Verhalten (2)
- Verhaltensökonomie (2)
- Vermeidung (2)
- Vernehmung (2)
- Verschwörungstheorie (2)
- Verstärkung (2)
- Visualization (2)
- Vorwissen (2)
- Wachstum (2)
- Wartezeit (2)
- Wasserbilanz (2)
- Weddellmeer (2)
- Weibliches Publikum (2)
- Weinbau (2)
- Wirtschaft (2)
- Wirtschaftspolitik (2)
- Wissenserwerb (2)
- Wissensgraph (2)
- Wohlbefinden (2)
- Working memory (2)
- Zeitreihe (2)
- Zuhause (2)
- academic self-concept (2)
- affective startle modulation (2)
- alternative Transkriptionsvarianten (2)
- alternative transcription variant (2)
- ambivalence (2)
- attitudes (2)
- audience studies (2)
- basal area increment (2)
- binomial (2)
- border (2)
- churches (2)
- criminal law (2)
- cross-border cooperation (2)
- culture (2)
- data assimilation (2)
- deep learning (2)
- depression (2)
- digitalization (2)
- directed forgetting (2)
- dopamine (2)
- drought (2)
- early cinema (2)
- empirical taxonomy (2)
- evaluative conditioning (2)
- female cinema audience (2)
- fibromyalgia (2)
- financing patterns (2)
- forest (2)
- frühes Kino (2)
- functional analysis (2)
- gender (2)
- glucocorticoid receptor (2)
- gypsum plaster (2)
- hyperspectral (2)
- image segmentation (2)
- immune system (2)
- intervention (2)
- katabatic winds (2)
- lacunary approximation (2)
- law on religion (2)
- leads (2)
- machine-learning (2)
- mating preferences (2)
- numerical analysis (2)
- obesity (2)
- official statistics (2)
- ozone (2)
- pain (2)
- para-Phenylendiamin (PPD) (2)
- partial integro-differential equations (2)
- physical activity (2)
- programming strategies (2)
- psychology (2)
- religion (2)
- religious communities (2)
- selective attention (2)
- shape optimization (2)
- silent film (2)
- small area estimation (2)
- stable boundary layer (2)
- stem detection (2)
- structured products (2)
- time series analysis (2)
- tree inclination (2)
- universality (2)
- verification (2)
- weibliches Kinopublikum (2)
- Ökologie (2)
- Ökonometrisches Modell (2)
- Ökosystemdienstleistung (2)
- (ADHD (1)
- (general) boustrophedon (returning) finite automata (1)
- (general) jumping finite automata (1)
- (regular : regular) array grammars (1)
- (regulär: regulär) Array-Grammati (1)
- 15N (1)
- 20. Jh. (1)
- 2D DIGE (1)
- 5' UTR (1)
- ACC (1)
- AFLP (1)
- ALS (1)
- ANS (1)
- APSIM model (1)
- APSIM-Modell (1)
- APT (1)
- ASEAN (1)
- ASEAN Plus Three (1)
- Abbruchregel (1)
- Abfall (1)
- Abhängigkeit (1)
- Ablagerung (1)
- Aborigines (1)
- Abschiebung (1)
- Abundanz (1)
- Abwasserreinigung (1)
- Academic Achievement (1)
- Accra (1)
- Acetylcholin (1)
- Achtsamkeit (1)
- Acidobacteria (1)
- Actinobacteria (1)
- Action control (1)
- Action vs. State Orientation (1)
- Adaptive Cluster Sampling (1)
- Adaptives System (1)
- Adaptives Verfahren (1)
- Adaptivregelung (1)
- Adjoint Equation (1)
- Adjoint Method (1)
- Adjoint Methods (1)
- Administrative Documents (1)
- Adoption (1)
- Advection-dispersion equation (1)
- Advektion-Diffusionsgleichung (1)
- Affect (1)
- Affektive Schreckreiz-Modulation (1)
- Affektive Startle Modulation (1)
- Affektstörung (1)
- African American Literature (1)
- African American Satire (1)
- Afrika (1)
- Afroamerikanische Literatur (1)
- Age Diversity (1)
- Ageing Workforce (1)
- Agency (1)
- Ah-Rezeptor (1)
- AhR (1)
- Airline (1)
- Aktienanlage (1)
- Aktienbörse (1)
- Aktienrendite (1)
- Aktivierung (1)
- Akzent (1)
- Akzeptanz (1)
- Alar (1)
- Algorithmische Lerntheorie (1)
- Allokation (1)
- Allozym-Elektrophorese (1)
- Alterität (1)
- Alternativkino (1)
- Alternierende Projektionen (1)
- Aluminiumindustrie (1)
- Amazonas-Gebiet (1)
- American (1)
- Amnestie (1)
- Amortisierte Laufzeitanalyse (1)
- Amortized run time analysis (1)
- Analyse (1)
- Analysis on fractals (1)
- Analytisches Funktional (1)
- Anatolien / Süd (1)
- Andosol (1)
- Anemometrie (1)
- Anglistik (1)
- Animal behaviour (1)
- Anime (1)
- Annäherung (1)
- Annäherungs-Vermeidungs-Motivation (1)
- Anonymisierung (1)
- Anorexia nervosa (1)
- Anstrengung (1)
- Anthropocene (1)
- Anthropogene Klimaänderung (1)
- Anthropometrie (1)
- Anthropozän (1)
- Antibiotikum (1)
- Antiparasitäres Mittel (1)
- Anura (1)
- Anurans (1)
- Aposeris foetida (1)
- Approach-avoidance motivation (1)
- Aquatisches Ökosystem (1)
- Arbeit (1)
- Arbeitslosenversicherung (1)
- Arbeitsrecht (1)
- Arbeitsweg (1)
- Arbeitsökonomie (1)
- Arbitrage-Pricing-Theorie (1)
- Areal (1)
- Arealgrenzen (1)
- Artificial Intelligence (1)
- Artificial Neural Network (1)
- Arzneimittel (1)
- Arztserie (1)
- Ascaridol (1)
- Ashikaga Yoshimitsu (1)
- Asia (1)
- Asia Pacific (1)
- Assistance System (1)
- Assisted Suicide (1)
- Association of South-East Asian Nations (1)
- Assoziatives Lernen (1)
- Asylbewerberunterkunft (1)
- Atmosphärische Turbulenz (1)
- Attitude Formation (1)
- Audiovisuelle Medien (1)
- Aufmerksamkeits-Defizit-Syndrom (1)
- Ausdauer (1)
- Ausdauernde Pflanzen (1)
- Ausdehnungsoperator (1)
- Ausgangsgestein (1)
- Ausgangssperre (1)
- Ausländische Direktinvestitionen (1)
- Auslöschung (1)
- Auslöser (1)
- Ausnahme (1)
- Ausrottung (1)
- Austalischer Busch (1)
- Australian Literature (1)
- Australian bush (1)
- Australien (1)
- Australien <Nordost> (1)
- Australienforschung (1)
- Auswahl (1)
- Auswirkung (1)
- Autismus (1)
- Autobiographie (1)
- Autokorrelation (1)
- Automata Theory (1)
- Automation of Simulation (1)
- Autonomie (1)
- Außenhandel (1)
- Außenpolitik (1)
- Außenwirtschaft (1)
- BAYES (1)
- BCI (1)
- BMAP (1)
- BRDF (1)
- BWL (1)
- Bacteria phyla (1)
- Banach Algebras (1)
- Banach space (1)
- Banach-Algebra (1)
- Banach-Raum (1)
- Bankenkrise (1)
- Banking Crises (1)
- Baroreflex (1)
- Bauchfett (1)
- Baum (1)
- Baumart (1)
- Baumwollpflanze (1)
- Bayes (1)
- Bayes-Inferenz (1)
- Bayes-Regel (1)
- Bayesian analysis (1)
- Bayesianische Analyse (1)
- Bedingte logistische Regression (1)
- Bedrohung (1)
- Bedürfnisbefriedigung (1)
- Beeinflussung (1)
- Begabtenförderung (1)
- Behalten (1)
- Behandlungstechnologien (1)
- Behavioral model (1)
- Behavioural methods (1)
- Belarus (1)
- Belebtschlamm (1)
- Belt and Road Initiative (1)
- Belt and Road Initiative (BRI) (1)
- Benzo[a]pyrene (1)
- Berechnungskomplexität (1)
- Beregnung (1)
- Bergman space (1)
- Berry-Esseen (1)
- Berufstätigkeit (1)
- Beteiligungsfinanzierung (1)
- Bethell (1)
- Beurteilungsfehler (1)
- Bevölkerungsökonomie (1)
- Bewaldung (1)
- Bewegungsmessung (1)
- Beweidung (1)
- Bewertung (1)
- Bewältigung (1)
- Beziehung (1)
- Bhagavad Gita (1)
- Bias-Korrektur (1)
- Big Five personality traits (1)
- Bildung (1)
- Bildungswesen (1)
- Bildungsökonomik (1)
- Binge-eating Disorder (1)
- Binomial (1)
- Bioakkumulation (1)
- Biogasgewinnung (1)
- Biogeochemie (1)
- Biogeography (1)
- Bioindication (1)
- Bioindikation (1)
- Biological control (1)
- Biological wastewater treatment (1)
- Biologischer Pflanzenschutz (1)
- Biomasse (1)
- Bipolar Disorder (1)
- Bipolare Störung (1)
- Birth weight (1)
- Bischof (1)
- Bishop (1)
- Black Rapist (1)
- Blattflächenindex (1)
- Blaue Berge <Australien> (1)
- Blinkreflex (1)
- Blinzelreflex (1)
- Blutegel (1)
- Bodenaggregate (1)
- Bodenbakterien (1)
- Bodenbearbeitung (1)
- Bodenfruchtbarkeit (1)
- Bodennahe Luftschicht (1)
- Bodenpilze (1)
- Bodenschutz (1)
- Bodentiere (1)
- Bodenwiderstand (1)
- Borderline Personality Disorder (1)
- Borderline-Persönlichkeitsstörung (1)
- Boundaries (1)
- Brackwasser (1)
- Brain (1)
- Branch-and-Bound-Methode (1)
- Branching Diffusion (1)
- Brandverhalten (1)
- Bregman distance (1)
- Bregman-Distanz (1)
- Brownian Motion (1)
- Brownsche Bewegung (1)
- Bruch (1)
- Brutpflege (1)
- Buehler, Robert J. (1)
- Bulimie (1)
- Burg Turaida (1)
- Burnout (1)
- Burnout-Syndrom (1)
- Buschballade (1)
- Business Angel (1)
- Business Angels (1)
- Business data (1)
- Bündel-Methode (1)
- Bürgerrechtsbewegung (1)
- C15orf53 (1)
- CAPE (1)
- CASL (1)
- CBG (1)
- CBT (1)
- CC-Chemokinrezeptor 2 (CCR2) (1)
- CCR2 (1)
- COMT Val158Met (1)
- COVID-19 pandemic (1)
- CPI; revision; substitution bias; distortion; official statistics; terms of trade; time series; free digital products; consumer value; count models (1)
- Canadian Literature (1)
- Cancellation (1)
- Capital structure (1)
- Carcinogenese (1)
- Care (1)
- Carrier-Proteine (1)
- Case-Based Reasoning (1)
- Cash holdings (1)
- Catecholmethyltransferase <Catechol-0-Methyltransferase> (1)
- Cauchy transforms (1)
- Cauchy-Transformierte (1)
- Cave (1)
- Cech cohomology of leafwise constant functions (1)
- Cech-de Rham cohomology (1)
- Census (1)
- Central Nervous System (1)
- Chain Hotel (1)
- Change (1)
- Chaotisches System (1)
- Characteristic (1)
- Cheever, John (1)
- Chemische Kommunikation (1)
- China (Nordwest) (1)
- Chinesen (1)
- Chinesisch-kanadische Literatur (1)
- Chlorophyll (1)
- Chromosom 15 (1)
- Chromosom 22 (1)
- Cingulum (1)
- Cingulum Cerebri (1)
- Client-server-Konzept (1)
- Climate Change (1)
- Cluster (1)
- Cluster Datenanalyse (1)
- Coastal Erosion (1)
- Codebuch (1)
- Cognition (1)
- Cold Pressor Test (1)
- Collexeme Analysis (1)
- Column generation (1)
- Combinatorial Optimization (1)
- Coming-out (1)
- Common Liability (1)
- Common Noise (1)
- Community Supported Agriculture (CSA) (1)
- Complex survey data (1)
- Composition algebra (1)
- Composition operator (1)
- Computation and Language (1)
- Computational Fluid Dynamics (1)
- Computational Statistics (1)
- Computational complexity (1)
- Computer Vision and Pattern Recognition (1)
- Computerspiel (1)
- Computerunterstützte Kommunikation (1)
- Computerunterstütztes Lernen (1)
- Conceptual Endophenotypes (1)
- Conduct disorder (1)
- Constraint-Erfüllung (1)
- Constraints to Growth (1)
- Construal Level Theorie (1)
- Construal Level Theory (1)
- Construction Grammar (1)
- Consumer confidence (1)
- Consumer need for uniqueness (1)
- Contemporary Anglo-Canadian Literature (1)
- Continuity (1)
- Control theory (1)
- Convergence (1)
- Coping strategies (1)
- Coposititive, Infinite Dimension (1)
- Corporate Governance (1)
- Corticosteroid-bindendes Globulin (1)
- Corticosteroidrezeptor (1)
- Cortisol-Aufwach-Reaktion (1)
- Counter-Globalization (1)
- Couple constraints (1)
- Covid-19 Lockdowns (1)
- Crop classification (1)
- Cross-border Investment (1)
- Crowdinvesting (1)
- Cuvelai Etoscha Becken (1)
- Cuvelai Etosha-basin (1)
- Cytokine (1)
- Cäsium-134 (1)
- Cäsium-137 (1)
- DDT (1)
- DNA isolation (1)
- DNS-Sequenz (1)
- DSGE (1)
- Dachschiefer (1)
- Dalit (1)
- Darlehen (1)
- Das circadiane System (1)
- Data anonymization (1)
- Datenfusion (1)
- Datensammlung (1)
- Datenspeicherung (1)
- Datenstruktur (1)
- David Malouf (1)
- David Malour (1)
- DeLillo, Don (1)
- Debugging (1)
- Decision-making behavior (1)
- Decomposition (1)
- Deflation (1)
- Dekomposition (1)
- Demokratie (1)
- Demökologie (1)
- Dendrochronologie (1)
- Dendroklimatologie (1)
- Density Estimation (1)
- Deposit (1)
- Derivat <Wertpapier> (1)
- Desertification (1)
- Desertifikation (1)
- Detektion (1)
- Deutsch (1)
- Deutschland, Bundesrepublik (1)
- Deutschland, DDR (1)
- Development (1)
- Development Economics (1)
- Diagnostische Urteilskompetenz (1)
- Diaspora (1)
- Die Korrekturen (1)
- Dienstleistungsinnovation (1)
- Diet (1)
- Difference (1)
- Differentialgeometrie (1)
- Differentialgleichung (1)
- Differentielle Genexpression (1)
- Diffusionsprozess (1)
- Digital transformation (1)
- Digitale Revolution (1)
- Directed Graphs (1)
- Direkte numerische Simulation (1)
- Disambiguierung von Personennamen (1)
- Discontinuous Galerkin (1)
- Discrete Optimization, Linear Programming, Integer Programming, Extended Formulation, Graph Theory, Branch & Bound (1)
- Discrete-Time Impulse Control (1)
- Discrimination (1)
- Diskontinuierliche Galerkin-Methode (1)
- Diskretisierung (1)
- Dispersal (1)
- Dissonance (1)
- Distraktor-Reaktionsbindung (1)
- Distraktor-Verarbeitung (1)
- Distraktorverarbeitung (1)
- Distributed Systems (1)
- Distribution (1)
- Distribution <Funktionalanalysis> (1)
- Disturbance Index (1)
- Dokumentverarbeitung (1)
- Domain Decomposition (1)
- Dose-response relationship (1)
- Dosis-Wirkungs-Beziehung (1)
- Drohung (1)
- Drought (1)
- Dynamic Capabilities (1)
- Dynamische Modellierung (1)
- E-learning (1)
- E-marketing (1)
- EEG (1)
- ERP (1)
- EU Taxonomy (1)
- Early Warning (1)
- Early warning signals (1)
- East Asia (1)
- Ecological Momentary Assessment (1)
- Ecology (1)
- Economics (1)
- Ecosystem Services (1)
- Ecosystem services (1)
- Ecotoxicology (1)
- Edmond (1)
- Education (1)
- Effektivität (1)
- Ehescheidung (1)
- Eigenschaft (1)
- Eigenschaften der vorbehandelte Abfälle (1)
- Eigentum (1)
- Eindruck (1)
- Einfluss (1)
- Einkommensverteilung (1)
- Einstellungsforschung (1)
- Einstrahlung (1)
- Einwanderung (1)
- Einzelinvestor (1)
- Einzugsgebietsmanagement (1)
- Eisbildung (1)
- Eisen (1)
- Eisenhydroxide (1)
- Eisenoxide (1)
- Eiszeit (1)
- Electricity market equilibrium models (1)
- Elektroenzephalogramm (1)
- Elektrokardiogramm (1)
- Elektronische Bibliothek (1)
- Ellesmere Island (1)
- Eltern (1)
- Emotions (1)
- Empfindung (1)
- Empirische Sozialforschung (1)
- Empirische Taxonomy (1)
- Encodierung (1)
- Endemic Centre (1)
- Endemitenzentren (1)
- Energie (1)
- Energiemarkt (1)
- Energy markets (1)
- English studies (1)
- Entfremdung (1)
- Entire Function (1)
- Entsalzung (1)
- Entscheidung (1)
- Entscheidung bei Risiko (1)
- Entscheidung bei Unsicherheit (1)
- Entscheidungsverhalten (1)
- Entwaldung (1)
- Entwicklung (1)
- Entwicklungsländer (1)
- Entwicklungspolitik (1)
- Entwicklungszusammenarbeit (1)
- Environment (1)
- Environmental Monitoring (1)
- Enzym (1)
- Enzymatic reactions (1)
- Enzyme (1)
- Enzyme inhibition (1)
- Enzyme kinetics (1)
- Enzymes (1)
- Enzymimmunassay (1)
- Enzymkinetik (1)
- Epigenetik (1)
- Epistemology of Simulation (1)
- Equilibrium computation (1)
- Equity Crowdfunding (1)
- Equity Premium Puzzle (1)
- Eradication (1)
- Erbkrankheit (1)
- Erde (1)
- Ereigniskorreliertes Potential (1)
- Erfahrungsbreite (1)
- Ergebnis (1)
- Ergussgestein (1)
- Ernte (1)
- Ernährungssicherung (1)
- Erosion (1)
- Erregung (1)
- Error function (1)
- Ersatzmodellierung (1)
- Erwarteter Nutzen (1)
- Erwartung (1)
- Erweiterung (1)
- Erwerbstätigkeitsstatistik (1)
- Erzbergbau (1)
- Erzählung (1)
- Essgewohnheit (1)
- Essverhalten (1)
- Ethnische Identität (1)
- Ethnographic methods (1)
- Ethnosoziologie (1)
- Eugenol (1)
- Eulerian trails (1)
- Euro <Währung> (1)
- Europarecht (1)
- European Convention on Human Rights (1)
- European Court of Human Rights (1)
- European Grouping of Territorial Cooperation (1)
- European Union Law (1)
- Europäische Union / Wasserrahmenrichtlinie (1)
- Europäische Union Verordnung zur Überprüfung ausländischer Direktinvestitionen (1)
- Eutrophierung (1)
- Event file (1)
- Event-File (1)
- Evolution (1)
- Exact Algorithms (1)
- Exakte Algorithmen (1)
- Exchange Rates (1)
- Exekuitive Funktion (1)
- Exekutive Funktionen (1)
- Exemptions (1)
- Existence (1)
- Experimentelle Wirtschaftsforschung (1)
- Experiments, Teamwork, Fundraising, Privacy Concerns (1)
- Expertise (1)
- Exponental time algorithms (1)
- Exponentialzeit Algorithmen (1)
- Exposure time (1)
- Extensionsoperatoren (1)
- Extraversion (1)
- Extremwert (1)
- Extremwertanalyse (1)
- F0 (1)
- FKBP51 (1)
- Faber operator, Faber set, Polynomial approximation, Harmonic approximation, Dirichlet-problem (1)
- Faber-Operator, Faber-Menge, Polynomielle Approximation, Harmonische Approximation, Dirichlet-Problem (1)
- Fahrassistenzsystem (1)
- Fahrerassistenzsystem (1)
- Fahrzeugverhalten (1)
- Faktorenanalyse (1)
- Faltungsoperator (1)
- Familienroman (1)
- Familienunternehmen (1)
- Family business (1)
- Fan (1)
- Fantasy (1)
- Faser (1)
- Faunal migration (1)
- Faunenmigration (1)
- Fear (1)
- Feedback (1)
- Fehleranalyse (1)
- Fehlerfunktion (1)
- Fehlzeiten (1)
- Feinkartierung (1)
- Feldforschung (1)
- Feldfrucht (1)
- Fernsehen (1)
- Fertilitätsstörung (1)
- Fetus (1)
- Feuchtwiese (1)
- Feuer (1)
- Feuersalamander (1)
- Fichte (1)
- Financial Cycle (1)
- Financing SMEs (1)
- Finanzkrise (1)
- Finanzmathematik (1)
- Finanzzyklus (1)
- Finite-Elemente-Methode (1)
- Firm performance (1)
- Firm survival (1)
- Fischerei (1)
- Fish (1)
- Fiskalpolitik (1)
- Fissurisation (1)
- Fitness (1)
- Fjord (1)
- Flechten (1)
- Fledermäuse (1)
- Flexibilität (1)
- Flugkörper (1)
- Fluoreszenzmikroskopie (1)
- Food pictures (1)
- Foreign Direct Investment (1)
- Foreign Exchange Reserves (1)
- Forest evapotranspiration (1)
- Forest hydrology (1)
- Forestry (1)
- Formal Verification (1)
- Formal languages (1)
- Formenräume (1)
- Formoptimierung (1)
- Forschung (1)
- Forstlicher Standort (1)
- Forstwirtschaft (1)
- Fragebogen (1)
- Fragmentation of Production (1)
- Fragmentierung (1)
- Fraktal (1)
- Frame Mathematik (1)
- Frankreich (1)
- Franzen, Jonathan (1)
- Frauenbewegung (1)
- Frauenforschung (1)
- Frauenlyrik (1)
- Fremdsprachenlernen (1)
- Fremdstoffmetabolismus (1)
- Frequenzbandkopplungen (1)
- Friedrich Wilhelm <Preußen (1)
- Fruchtbildung (1)
- Fréchet-Algebra (1)
- Functional soil biodiversity (1)
- Functor (1)
- Fungizid (1)
- Funktionalität (1)
- Funktionelle Biodiversität (1)
- Funktionelle Kernspintomographie (1)
- Funktor (1)
- Furcht (1)
- Fähigkeitsselbstkonzepte (1)
- GEOBIA (1)
- GPS (1)
- GR (1)
- Gamification (1)
- Ganzzahlige Optimierung (1)
- Gas Chromatography (1)
- Gasaustausch (1)
- Gauja spillway valley (1)
- Gaussian measures (1)
- Gauß-Maß (1)
- Gebietszerlegung (1)
- Gebietszerlegungsmethode (1)
- Gebirge (1)
- Gebirgswald (1)
- Gedächtnisrepräsentation (1)
- Gedächtnistest (1)
- Gefühlsreaktion (1)
- Gegen-Globalisierung (1)
- Gegenstimulation (1)
- Gehirn-Computer-Schnittstelle (1)
- Geistiges Eigentum (1)
- Gemeinde (1)
- Gemischt-ganzzahlige Optimierung (1)
- Genauigkeit (1)
- Gender (1)
- Generalized Variance Functions (1)
- Generationsverhältnis (1)
- Genesung (1)
- Geneva Emotional Competence Test (1)
- Genre (1)
- Geodatenverarbeitung (1)
- Geoelektrik (1)
- Geoinformationssystem (1)
- Geowissenschaften (1)
- Gerechtigkeit (1)
- Gerichteter Graph (1)
- German Federal Constitution (1)
- German criminal law (1)
- German-Polish border (1)
- Geschichte 2500 v. Chr.-2000 (1)
- Geschlechterrolle Motiv (1)
- Gesellschaft (1)
- Gesichtsfeld (1)
- Gesundheitsschutz (1)
- Gesundheitsverhalten (1)
- Gesundheitsökonomie (1)
- Getreide (1)
- Gewalt (1)
- Gewerkschaft (1)
- Gewitter (1)
- Gips (1)
- Gipsplatte (1)
- Girls Love (1)
- Gittererzeugung (1)
- Glaziale Refugien (1)
- Gleichgewichtstheorie (1)
- Globale Konvergenz (1)
- Globale Optimierung (1)
- Glucocorticoid Receptor (GR) (1)
- Glucocorticoidrezeptor (1)
- Glucocorticoids (1)
- Glukokortikoidrezeptor (1)
- Governance (1)
- Graph Minors (1)
- Graph Rewriting (1)
- Graph Visualization (1)
- Graphen mit Eulerschen Pfaden (1)
- Graphentheorie (1)
- Graphikprozessor (1)
- Graphvisualisierung (1)
- Grasslands (1)
- Greater Region (1)
- Greater Region SaarLorLux (1)
- Greedy-Algorithmus (1)
- Green Finance (1)
- Grenzarbeitnehmer (1)
- Grenzpolitische Kontrolle (1)
- Grenzüberschreitung (1)
- Grey's Anatomy (1)
- Großbritannien (1)
- Großregion (1)
- Grundfrequenz (1)
- Grundschullehrer (1)
- Grundwasserbildung (1)
- Grundwasserstrom (1)
- Gruppe (1)
- Gruppierung (1)
- Gründerinnen (1)
- Grünland (1)
- Gyrifikation (1)
- Gärung (1)
- HEXAGON (1)
- HPA-Achse (1)
- HPC (1)
- Habitatfragmentierung (1)
- Habituation (1)
- Hadamard cycle (1)
- Hadamardzyklus (1)
- Haftung (1)
- Handel (1)
- Handelsgeschäft (1)
- Handlungsregulation (1)
- Handlungstheorie (1)
- Hang (1)
- Hapten (1)
- Hardy space (1)
- Hassler Whitney (1)
- Hauptkomponentenanalyse (1)
- Haut (1)
- Hautzelle (1)
- Health Literacy (1)
- Heart rate (1)
- Heimat (1)
- Hemisphärendominanz (1)
- Hemopump (1)
- Herpetology (1)
- Herzkrankheit (1)
- Heteronormativity (1)
- Heteronormativität Motiv (1)
- Heuschrecken (1)
- Hidden Champions (1)
- Higher Education (1)
- Hippocampus (1)
- Hippocampus Aktivierung (1)
- Hippocampus Atrophie (1)
- Hippocampus Volumen (1)
- Hirnforschung (1)
- Hirnfunktion (1)
- Hochmoorgelbling (1)
- Hong Kong (1)
- Hongkong (1)
- Human (1)
- Human behaviour (1)
- Humankapital (1)
- Hybrid Modelling (1)
- Hybridisierung (1)
- Hybridkrieg (1)
- Hydrodynamik (1)
- Hydrogeologie (1)
- Hydrological Modeling (1)
- Hydrology (1)
- Hypercyclicity (1)
- Hypergeometrische Funktionen (1)
- Hyperhidrose (1)
- Hyperlink-Proposals (1)
- Hyperspectral (1)
- Hyperspektraldaten (1)
- Hyperspektraler Sensor (1)
- Hypoelliptischer Operator (1)
- Hypothalamic-pituitary-adrenal axis (1)
- Hypothalamic-pituitary-adrenocortical axis (1)
- Hypothesis Testing (1)
- Häufigkeit (1)
- Höhle (1)
- IV.> (1)
- Ice production (1)
- Identity (1)
- Identitätsentwicklung (1)
- Identitätsfindung (1)
- Image Processing (1)
- Imagination (1)
- Immundefekt (1)
- Immunfunktion (1)
- Immunglobulintherapie (1)
- Immunisation (1)
- Immunisierung (1)
- Immunoglobulin (1)
- Impact Investing (1)
- Implizites Lernen (1)
- Implizites Motiv (1)
- Implizites Sequenzlernen (1)
- Implizites Wissen (1)
- Impulsivität (1)
- In aller Freundschaft (1)
- In-vitro-Kultur (1)
- Indian Philosophy (1)
- Indien (1)
- Individualisierte Medizin (1)
- Individualisierung (1)
- Individuenbasiertes Modell (1)
- Indonesia (1)
- Indonesien (1)
- Induktiver Limes (1)
- Industrielle Beziehungen (1)
- Industriepolitik (1)
- Information Seeking (1)
- Information Visualization (1)
- Informationsverarbeitung (1)
- Informationsverhalten (1)
- Informationsvisualisierung (1)
- Infrarot (1)
- Infusion (1)
- Inhalation (1)
- Inhalation Toxicology (1)
- Inhibition (1)
- Inhibitorische Kontrolle (1)
- Initial Coin Offerings (ICOs) (1)
- Inkongruenz (1)
- Innere-Punkte-Methode (1)
- Innovation (1)
- Insektizid (1)
- Insel-Verdriftungen (1)
- Instruktion (1)
- Integraloperator (1)
- Integrated Circuits (1)
- Integration <Politik> (1)
- Integrierbarkeit (1)
- Integrodifferentialgleichung (1)
- Intelligence Structure Battery (1)
- Intelligence profiles (1)
- Intelligenztest (1)
- Intention (1)
- Intention Enactment (1)
- Interaction (1)
- Intergenerational knowledge transfer (1)
- Interkulturalität (1)
- International Trade (1)
- Internet statistics (1)
- Internetdienst (1)
- Interoception (1)
- Interpersonal conflict (1)
- Interpersonale Kommunikation (1)
- Intersektionalität (1)
- Intervallalgebra (1)
- Intranasal insulin (1)
- Intrusionen (1)
- Inversion (1)
- Investition (1)
- Investmentfonds (1)
- Investorenkommunikation (1)
- Invisible Man (1)
- Iran (1)
- Iron (1)
- Islamic Banking (1)
- Islamic Finance (1)
- Islamic State (1)
- Islamische Bank (1)
- Islamischer Staat (1)
- Islamisches Finanzwesen (1)
- Island-drifts (1)
- Isoeugenol (1)
- Isolation <Soziologie> (1)
- Italien (1)
- J.C. (1)
- Jahrtausendwende (1)
- Jamsession (1)
- Japanese popular culture (1)
- Japanese studies (1)
- Japanologie (1)
- Japanology (1)
- Jazz (1)
- Jews (1)
- Jonathan Franzen (1)
- Juden (1)
- Judenverfolgung (1)
- Junge Frau (1)
- KMU (1)
- KMU-Finanzierung (1)
- Kakuma (1)
- Kalkulationsverfahren (1)
- Kaltwasserstresstest (1)
- Kaltwasssertest (1)
- Kanadische Literatur (1)
- Kanadistik (1)
- Kanon / Literatur (1)
- Kapitalanlage (1)
- Kapitalertrag (1)
- Karbon (1)
- Kardiovaskuläre Krankheit (1)
- Karst (1)
- Karte (1)
- Kartierung (1)
- Kassenhaltung (1)
- Kastration (1)
- Kaulquappe (1)
- Kegel (1)
- Kenia (1)
- Kenya (1)
- Kerala (1)
- Keralite women (1)
- Keratiniozyten (1)
- Keratinocytes (1)
- Kernspintomographie (1)
- Kiefer (1)
- Kieselerden (1)
- Kirchen (1)
- Klassiche Lidschlagkonditionierung (1)
- Klassifikation (1)
- Klassische Konditionierung (1)
- Klein- und Mittelbetrieb (1)
- Kleinman (1)
- Klient (1)
- Klimamodell (1)
- Klimawandel (1)
- Koerperwahrnehmung (1)
- Kognitive Entwicklung (1)
- Kognitive Kompetenz (1)
- Kognitive Psychotherapie (1)
- Kohlendioxidsenke (1)
- Kom (1)
- Kommunikation (1)
- Komplexe Netzwerke (1)
- Komplexe Systeme (1)
- Komplexität (1)
- Komplikation (1)
- Kompositionsalgebra (1)
- Konditionierung (1)
- Konfidenzbereich (1)
- Konfliktregelung (1)
- Konfluente hypergeometrische Funktion (1)
- Konformitätsprüfung (1)
- Konservierende Bodenbearbeitung (1)
- Konsumentenvertrauen (1)
- Kontaktdermatitis (1)
- Kontamination (1)
- Kontrastive Linguistik (1)
- Kontrollierte Therapiestudie (1)
- Kontrolltheorie (1)
- Konvektions-Diffusionsgleichung (1)
- Konvergenz (1)
- Konvergenztheorie (1)
- Konzeptuelle Endophänotypen (1)
- Kopplungs- und Mutationsanalysen (1)
- Korea (1)
- Korean Civil Code (1)
- Kortex (1)
- Kosten-Nutzen-Analyse (1)
- Kriegsfotografie (1)
- Krylov subspace methods (1)
- Krylov-Verfahren (1)
- Kulturvergleich (1)
- Kunststoff (1)
- Kurtosis (1)
- König (1)
- Körper (1)
- Körpererfahrung (1)
- Körpertherapie (1)
- Künstliche Intelligenz (1)
- Künstliches Fließgewässer (1)
- Küstenmeer (1)
- LAI (1)
- LAP (1)
- LB-Algebra (1)
- LG children (1)
- Labour economics (1)
- Lagerung (1)
- Lam Dong (1)
- Landsat-8 OLI (1)
- Langeweile (1)
- Laplace-Differentialgleichung (1)
- Laptev See (1)
- Larva (1)
- Later-stage ventures (1)
- Laubwald (1)
- Lauris (1)
- Leaf Area Index (1)
- League of Legends (1)
- Leben (1)
- Lebensalter (1)
- Lebensereignis (1)
- Lebenskrise (1)
- Lebensplan (1)
- Lebensqualität (1)
- Lebenszyklusanalyse (1)
- Leech (1)
- Legalisierung (1)
- Leistungsmessung (1)
- Leistungstest (1)
- Lerntechnik (1)
- Lesvos (1)
- Lettland / Verfassung <1991> (1)
- Level Set Methode (1)
- Level constraints (1)
- Lexikologie (1)
- Lexikostatistik (1)
- LiDAR (1)
- Lichens (1)
- Life Cycle Assessment (1)
- Liminalität (1)
- Limnology (1)
- Linear complementarity problems (1)
- Lineare Dynamik (1)
- Lineare Funktionalanalysis (1)
- Linearer partieller Differentialoperator (1)
- Linguistik (1)
- Literary discourse (1)
- Literaturproduktion (1)
- Logischer Entwurf (1)
- Lohnfortzahlung (1)
- Luftverschmutzung (1)
- Lunge (1)
- Lurche (1)
- Lymphozyt (1)
- Lynching (1)
- Längsschnittuntersuchung (1)
- Lückenapproximation (1)
- M&A decision criteria (1)
- M&A process (1)
- MALDI-TOF MS (1)
- MBA-Technologie (1)
- MBT technology (1)
- MCP-1 (1)
- MLC1 (1)
- MOSAiC (1)
- MR (1)
- Machine Learning (1)
- Macht (1)
- Macroeconomics (1)
- Madagascar (1)
- Mais (1)
- Maisanbau (1)
- Maissilage (1)
- Makrophage (1)
- Makroökonomisches Modell (1)
- Managementstrategien (1)
- Manga (1)
- Mangrove (1)
- Mann (1)
- Marke (1)
- Marketing (1)
- Markov Inkrement (1)
- Markov Jump Process (1)
- Markov-Kette (1)
- Markov-Prozess (1)
- Marktführer (1)
- Marktmechanismus (1)
- Mary (1)
- Maskerade <Motiv> (1)
- Maskerade von Charakter und Text (1)
- Maskulinität (1)
- Masquerade of Characters and Text (1)
- Mass Customization (1)
- Massendaten (1)
- Matching polytope (1)
- Mathematische Lerntheorie (1)
- Mathematisches Modell (1)
- Matrixcone (1)
- Matrixzerlegung (1)
- Matroidtheorie (1)
- Mean Field Games (1)
- Measure & Conquer (1)
- Meat Consumption (1)
- Meat Paradox (1)
- Mechanical and biological treatment (1)
- Mechanisch-biologische Abfallbehandlung (1)
- Mechanisch-biologische Verfahren (1)
- Mechanische Eigenschaft (1)
- Mechanismen (1)
- Mechanismus-Design-Theorie (1)
- Medien (1)
- Medien / Wandel (1)
- Medienwissenschaft (1)
- Mediterrane Rangelands (1)
- Mediterranean (1)
- Mediterranean Rangelands (1)
- Meeresströmung (1)
- Mehrgitterverfahren (1)
- Mellin transformation (1)
- Mellin-Transformierte (1)
- Menschenbild (1)
- Menschenrecht (1)
- Menstruationszyklus (1)
- Mergelyan (1)
- Mesh Generation (1)
- Mesh Quality (1)
- Messenger-RNS (1)
- Meta-Analyse (1)
- Meta-analysis (1)
- Metabolism (1)
- Metadaten (1)
- Meteorologie (1)
- Meteorologische Messung (1)
- Methode der kleinsten Quadrate (1)
- Methode der logarithmischen Barriere (1)
- Methodologie (1)
- Methodologies (1)
- Methylierung und SNPs (1)
- Methylphenidat (1)
- Middle Ages (1)
- Middleware (1)
- Mietpreis (1)
- Migration (1)
- Migrationspolitik (1)
- Mikrofaser (1)
- Mikrosatelliten (1)
- Mikrozensus (1)
- Milde Depression (1)
- MinION (1)
- Mindesthaltbarkeitsdatum (1)
- Minecraft (1)
- Mineral (1)
- Mineralogie (1)
- Mineralokortikoidrezeptor (1)
- Minor <Graphentheorie> (1)
- Mischung (1)
- Mischverteilungs VAR (1)
- Missing Data (1)
- Mitgefühl (1)
- Mitochondria (1)
- Mittag-Leffler Funktion (1)
- Mittag-Leffler function (1)
- Mittelalter (1)
- Mittelgebirge (1)
- Mittelmoseltal (1)
- Mixed Local-Nonlocal PDE (1)
- Mixed Models (1)
- Mixture VAR (1)
- Mixture-Model (1)
- MoDC (1)
- MoDZ (1)
- Mobile Networks (1)
- Mobile Telekommunikation (1)
- Mobility (1)
- Mobilität (1)
- Modelling (1)
- Modellprädiktive Regelung (1)
- Moderator (1)
- Moderators and mediators (1)
- Moderner Roman (1)
- Modernity (1)
- Modulation (1)
- Mohrenfalter (1)
- Monozyt (1)
- Monozyten-chemotaktische Protein 1 (MCP-1) (1)
- Monte Carlo Simulation (1)
- Monte-Carlo Methods (1)
- Monte-Carlo simulation (1)
- Moor (1)
- Moose (1)
- Moria (1)
- Morphologie (1)
- Morphologie 〈Linguistik〉 (1)
- Mortality Salience (1)
- Mortalitätssalienz (1)
- Mosses (1)
- Motif of Disguise (1)
- Motiv (1)
- Motor mimicry (1)
- MouseTracker (1)
- Multi-Level Modelling (1)
- Multi-Source Estimation (1)
- Multiculturalism (1)
- Multilineare Algebra (1)
- Multinomial (1)
- Multiplikationssatz (1)
- Multispektralfotografie (1)
- Multithreading (1)
- Mund-Nasen-Schutz (1)
- Muromachi (1)
- Musikerlebnis (1)
- Muster <Struktur> (1)
- Mutation (1)
- Mykotoxin (1)
- Männlichkeit Motiv (1)
- N-Acetyltransferase 1 (NAT1) (1)
- N-acetyltransferase 1 (NAT1) (1)
- NMR-Spektroskopie (1)
- NOAA AVHRR (1)
- NP-hartes Problem (1)
- Nadelwald (1)
- Nahrungsaufnahme (1)
- Nares-Straße (1)
- Nash–Cournot competition (1)
- Nationalpark Hunsrück-Hochwald (1)
- Nationalstaat (1)
- Natur (1)
- Naturbilder (1)
- Nature and society (1)
- Naturgefahr (1)
- Nebenbedingung (1)
- Neid (1)
- Neptungras (1)
- Nervennetz (1)
- Netzwerk (1)
- Neumann-Problem (1)
- Neuropattern (1)
- Neuseeland (1)
- Neuzeit / Geschichte 1450-1650 (1)
- New Zealand (1)
- Newton (1)
- Newton-Verfahren (1)
- Nichtfortsetzbare Potenzreihe (1)
- Nichtglatte Optimierung (1)
- Nichtlineare Dynamik (1)
- Nichtlokalität (1)
- Nische (1)
- Nitrogen Deposition (1)
- Nominalphrase (1)
- Non-economic goals (1)
- Nonlinear Optimization (1)
- Nonlocal (1)
- Nonlocal Diffusion (1)
- Nonlocal convection-diffusion (1)
- Nordterritorium <Australien> (1)
- Nordwestchina (1)
- Normalverteilung (1)
- North Water Polynya (1)
- Norwegen (1)
- Nostalgie (1)
- Novel (1)
- Nuklearrezeptoren (1)
- Numerical Methods (1)
- Numerics (1)
- Numerisches Verfahren (1)
- Nutzpflanzen (1)
- Nutzwertanalyse (1)
- Nährstoffverlust (1)
- Oberflächenströmung (1)
- Oberflächentemperatur (1)
- Obermosel-Gebiet (1)
- One-Belt-One-Road-Initiative (1)
- OpenStreetMap (1)
- Optimal Control on Unbounded Space Domains (1)
- Optimal Multivariate Allocation (1)
- Optimierung bei nichtlinearen partiellen Differentialgleichungen (1)
- Optimierung unter Unsicherheiten (1)
- Optimization under Uncertainty (1)
- Opting out of School Obligations for Religious Reasons (1)
- Optionen (1)
- Optionspreis (1)
- Orbicularis-oculi-Reflex (1)
- Ordered Binary Decision Diagrams (1)
- Organic phosphorus compounds (1)
- Organisation (1)
- Organisational learning (1)
- Organisationswandel (1)
- Organization (1)
- Orientierung (1)
- Orthogonale Zerlegung (1)
- Orthoptera (1)
- Oxford Nanopore Technologies (1)
- Ozon-Phytotoxizität (1)
- Ozonbelastung (1)
- Ozone flux model (1)
- Ozonflussmodell (1)
- P-Glykoprotein (1)
- P-Konvexität für Träger (1)
- P-Konvexität für singuläre Träger (1)
- P-convexity for singular supports (1)
- P-convexity for supports (1)
- PBMC (1)
- PDE Beschränkungen (1)
- PDE Constraints (1)
- PDE-constrained optimization (1)
- PERIOD Gene (1)
- PERIOD gene (1)
- PERIOD genes (1)
- PIDE constrained Optimal Control (1)
- POD-Methode (1)
- PPD (1)
- PTSD (1)
- Pakistan (1)
- Paleogenetics (1)
- Parameter dependence of solutions of linear partial differential equations (1)
- Parameterabhängige Lösungen linearer partieller Differentialgeichungen (1)
- Parameterabhängigkeit (1)
- Parameterisierte Algorithmen (1)
- Parameterized Algorithms (1)
- Parametric Bootstrap (1)
- Parametrische Optimierung (1)
- Parametrisierte Approximation (1)
- Parapatrie (1)
- Parapatry (1)
- Parasitism (1)
- Parasitismus (1)
- Patagonia (1)
- Patagonien Süd (1)
- Patagonien, Süd (1)
- Pathogener Mikroorganismus (1)
- Patienteninformation (1)
- Patientenorientierte Medizin (1)
- Patientin (1)
- Patients (1)
- Patrick White (1)
- Patriotismus (1)
- Pedotransfer Functions (1)
- Peer-Review (1)
- Peer-to-Peer-Netz (1)
- Penalized Maximum Likelihood (1)
- Penalty-Methode (1)
- Penman-Monteith equation (1)
- Perfektionismus (1)
- Performance (1)
- Perfusion (1)
- Periodic Queues (1)
- Personalentwicklung (1)
- Personalisierte Psychotherapie (1)
- Personalisierung (1)
- Personalized Medicine (1)
- Personalized mental health (1)
- Personenname (1)
- Persönlichkeit (1)
- Persönlichkeitsfaktor (1)
- Peru (1)
- Pesticide, Agrochemical, Wall lizard, Podarcis muralis, Biomarker, Buccal Swab, Reptile, Squamata (1)
- Pesticides (1)
- Pestizid-Anwendungen (1)
- Pestizidbelastung (1)
- Pflanzenbau (1)
- Pflanzenschutzmitteln (1)
- Pflanzenwachstum (1)
- Pfälzerwald (1)
- Pharmazeutika (1)
- Phasen-Amplituden-Kopplung (1)
- Phonologie (1)
- Phosphatelimination (1)
- Phosphatgips (1)
- Phosphor elimination (1)
- Phosphororganische Verbindungen (1)
- Phylogenetic analysis (1)
- Phylogenie (1)
- Phylogeographie (1)
- Physical activity (1)
- Physikalisch-chemische Eigenschaft (1)
- Physikalische Eigenschaft (1)
- Physiologische Psychotherapie (1)
- Phänomenologische Soziologie (1)
- Phänotyp (1)
- Plant pathogen repression (1)
- Plasmaersatz (1)
- Plazenta (1)
- Pokémon (1)
- Polen (1)
- Politisches Handeln (1)
- Polychlorierte Biphenyle (1)
- Polyeder (1)
- Polymorphismus (1)
- Pop-Kultur (1)
- Population Ecology (1)
- Populationsgenetik (1)
- Populationsmodellierung (1)
- Portfolio Selection (1)
- Posidonia oceanica fibers (1)
- Positive affect (1)
- Positiver Affekt (1)
- Post-colonialism (1)
- Postcolonialism (1)
- Postmoderne (1)
- Postpostmoderne (1)
- Posttraumatisches Stresssyndrom (1)
- Potential theory (1)
- Power Motivation (1)
- Precautionary saving (1)
- Precision mental health (1)
- Predation (1)
- Prediction (1)
- Preis (1)
- Preistheorie (1)
- Pressorezeptor (1)
- Primary photon fluence rates (1)
- Principal-agent model (1)
- Principle of Rhythmic Alternation (1)
- Private Banking (1)
- Privatisierung (1)
- Privatrecht (1)
- Problemlösen (1)
- Process benchmarking (1)
- Process-Oriented Case-Based Reasoning (1)
- Product estimator (1)
- Produktschätzer (1)
- Prognosis (1)
- Programm (1)
- Projective Limit (1)
- Projektiver Limes (1)
- Proliferation (1)
- Promotorregion (1)
- Property Law (1)
- Propriety (1)
- Prosa (1)
- Prosocial behavior (1)
- Proteomanalyse (1)
- Provinz Copperbelt (1)
- Provinz Golestan (1)
- Provokation (1)
- Proximal-Punkt-Verfahren (1)
- Prozessanalyse (1)
- Prozessbenchmarking (1)
- Prozessmanagement (1)
- Prozessor (1)
- Prädetermination <Linguistik> (1)
- Präferenz (1)
- Präferenzieller Fluss (1)
- Präpulsinhibierung (1)
- Präsentismus (1)
- Prüfungsangst (1)
- Pseudogley (1)
- Psychiatric genetics (1)
- Psychische Belastung (1)
- Psychische Störung (1)
- Psychisches Trauma (1)
- Psychologie (1)
- Psychologiestudierende (1)
- Psychologiestudium (1)
- Psychologische Diagnostik (1)
- Psychologische Distanz (1)
- Psychometrischer Intelligenztest (1)
- Psychophysiology (1)
- Psychotherapeutische Versorgung (1)
- Pufferspeicher (1)
- Pulsatilität (1)
- Pyroklastit (1)
- Pädagogische Diagnostik (1)
- Q-sort method (1)
- Qualitative Comparative Analysis (1)
- Qualitative Komparative Analyse (1)
- Qualitätssicherung (1)
- Quantisierung (1)
- Quantisierungkugel (1)
- Quantisierungsradius (1)
- Quantization (1)
- Quelle (1)
- Querschnittsrendite (1)
- Queues (1)
- RCT (1)
- Racism (1)
- Radar (1)
- Radikalismus (1)
- Radiometrie (1)
- Raketenabwehr (1)
- Ralph Ellison (1)
- Randmeer (1)
- Rasse (1)
- Rassenmischung (1)
- Rassentrennung (1)
- Rassismus (1)
- Rassismus <Motiv> (1)
- Raum (1)
- Raumordnung (1)
- Reaktion (1)
- Real Estate Investment Trusts (1)
- Rebel Governance (1)
- Recht <Motiv> (1)
- Rechte Hemisphäre (1)
- Rechteckwahrscheinlichkeit (1)
- Rechtsphilosophie (1)
- Rechtspolitik (1)
- Rechtsradikalismus (1)
- Rechtsreform (1)
- Rechtsstaatsprinzip (1)
- Rechtstheorie (1)
- Rechtsvergleichung (1)
- Reduktionssystem (1)
- Reflectance Modeling (1)
- Reflexionsmodellierung (1)
- Reflexionsspektroskopie (1)
- Reform (1)
- Reforms (1)
- Refugee camps (1)
- Regenwurmgang (1)
- Regierung (1)
- Regionalentwicklung (1)
- Regression (1)
- Regression Kriging (1)
- Regression estimator, household surveys, calibration, weighting, integrated weighting (1)
- Regression models (1)
- Regressionsanalyse (1)
- Regret and benign envy (1)
- Regular Expressions (1)
- Regularisierung (1)
- Regularisierungsverfahren (1)
- Regulärer Ausdruck (1)
- Reihenfolgeproblem (1)
- Reisebericht (1)
- Reiz-Reaktions Bindung (1)
- Reizantwort (1)
- Reizverarbeitung (1)
- Relatives Alter (1)
- Reliabilität (1)
- Religionsausübung (1)
- Religionsgemeinschaften (1)
- Religionsunterricht (1)
- Religious Instruction (1)
- Religiöse Identität (1)
- Repertoire (1)
- Reproduction (1)
- Request-Prediction (1)
- Resilienz (1)
- Response Surface Analysis (1)
- Ressourcen-Konkurrenz (1)
- Ressourcenpolitik (1)
- Retirement, Fertility, Sexuality (1)
- Reue (1)
- Revue (1)
- Revuetheater (1)
- Rhizosphäre (1)
- Riemannsche Geometrie (1)
- Right-Wing Extremism (1)
- Risiko-Aufnahme Kanal (1)
- Risikoanalyse (1)
- Risikomaß (1)
- Risk-Taking Channel (1)
- Robust Statistics (1)
- Robust methods (1)
- Robuste Schätzung (1)
- Robuste Statistik (1)
- Robustheit (1)
- Rollentheorie (1)
- Rollenverhalten (1)
- Roman (1)
- Routine outcome monitoring (1)
- Ruhestand (1)
- Rundungsfehler (1)
- Russian invasion (1)
- Russisch-Ukrainischer Krieg (1)
- Ruthenium-106 (1)
- Räumliche Anordnung (1)
- Räumliche Verteilung (1)
- SAR (1)
- SARS‐CoV‐2 (1)
- SME (1)
- SME financing (1)
- SNP (1)
- SODAR (1)
- SODAR/RASS (1)
- Saar-Lor-Lux (1)
- Sakkade (1)
- Salzgehalt (1)
- Sambia (1)
- Samen (1)
- Samenkeimung (1)
- Sardinien (1)
- Sasaki Dōyo (1)
- Satellit (1)
- Satire (1)
- Satiriker (1)
- Satirischer Roman (1)
- Saving behaviour (1)
- Scan Statistik (1)
- Schafweide (1)
- Scharia (1)
- Schelfeis (1)
- Schiefe (1)
- Schizophrenia (1)
- Schmetterlinge (1)
- Schnittebenen (1)
- School (1)
- Schreckreflex (1)
- Schriftstellerin (1)
- Schudra (1)
- Schulbildung (1)
- Schulbuchstreit (1)
- Schullaufbahn (1)
- Schullaufbahnempfehlung (1)
- Schulzeugnis (1)
- Schuyler (1)
- Schwangersch (1)
- Schwangerschaft (1)
- Schwarze (1)
- Schweiz (1)
- Schweizer Alpen (1)
- Schweißabsonderung (1)
- Schwermetall (1)
- Schwitzen (1)
- Schädling (1)
- Schäferspiel (1)
- Science, technology and society (1)
- Sea ice (1)
- Sediment (1)
- Seed germination (1)
- Segregation (1)
- Sekundarstufe (1)
- Sekundärkrankheit (1)
- Selbst-Concordanz (1)
- Selbstkonzept (1)
- Selbstorganisation (1)
- Selbstorganisierende Karte (1)
- Selbstständigkeit (1)
- Selbstwert (1)
- Selbstwertgefühl (1)
- Selbstwirksamkeitserwartung (1)
- Selbstüberwachung (1)
- Selective attention (1)
- Selektion (1)
- Selektivität (1)
- Self-Organizing Maps (1)
- Self-organizing Maps (1)
- Semiinfinite Optimierung (1)
- Sensibilisierung <Immunologie> (1)
- Sequenzanalyse (1)
- Sequenzanalyse / Chemie (1)
- Service (1)
- Service Innovation (1)
- Sewernaja Semlja (1)
- Sexualdimorphismus (1)
- Shallow Water Equations (1)
- Shape Calculus (1)
- Shape Kalkül (1)
- Shape Optimiztion (1)
- Shape SQP Methods (1)
- Shareholder-Value-Analyse (1)
- Sharia (1)
- Sheep (1)
- Shifting cultivation (1)
- Siamese Graph Neural Networks (1)
- Sicherheit und Ordnung (1)
- Sicherheitspolitik (1)
- Silver Nanoparticles (1)
- Silver nanoparticles (1)
- Simulation Studies (1)
- Simulation study (1)
- Sinonatrix (1)
- Sistānbecken (1)
- Skill Variety (1)
- Sklaverei (1)
- Small Area (1)
- Small Area Estimation (1)
- Small Area Verfahren (1)
- Small area estimation (1)
- Smoking) (1)
- Social Capital (1)
- Social Enterprise (1)
- Social Entrepreneurship (1)
- Social Innovation (1)
- Social anxiety disorder (1)
- Socialism, Socialist values and attitudes, Socialist legacy, Literature review, Entrepreneurship intention, Business takeover, Career choice reasons, and TPB model. (1)
- Sociology (1)
- Software Visualization (1)
- Softwarearchitektur (1)
- Softwarevisualisierung (1)
- Soil (1)
- Soil microbial community (1)
- Soil parameterization (1)
- Soil texture (1)
- Solar thermal desalination technique (1)
- Solarthermische Entsalzungstechnologie (1)
- Somatic experiencing (1)
- Source Code Augmentation (1)
- Southern Africa (1)
- Sozialangst (1)
- Soziale Ungleichheit (1)
- Soziale Unterstützung (1)
- Sozialer Stress (1)
- Sozialinnovation (1)
- Sozialismus (1)
- Sozialkapital (1)
- Sozialverhalten (1)
- Sozialwesen (1)
- Sozialökologie (1)
- Soziolinguistik (1)
- Sparverhalten (1)
- Spatial (1)
- Spatial Ramsey Model (1)
- Spatial autocorrelation (1)
- Spatial correlation (1)
- Spatial learning (1)
- Speichel (1)
- Speicherdirektzugriff (1)
- Spektrale Emissivität (1)
- Spektroradiometrie (1)
- Spektroskopie (1)
- Spektrum <Mathematik> (1)
- Speleomantes (1)
- Spitzbergen (1)
- Spline (1)
- Splitting (1)
- Sprachverarbeitung (1)
- Staatsanleihe (1)
- Stabile Isotope (1)
- Stability (1)
- Stable Isotopes (1)
- Stadtplanung (1)
- Stagnosols (1)
- Stamm Botanik (1)
- Standard ML (1)
- Standortplanung (1)
- Stanley (1)
- Stark stetige Halbgruppe (1)
- Startle modulation (1)
- Startle reflex (1)
- Statistical Learning (1)
- Statistical Matching (1)
- Statistical Mechanics of complex networks (1)
- Statistical Properties (1)
- Statistische Mechanik komplexer Netze (1)
- Statistisches Modell (1)
- Status (1)
- Steilhang (1)
- Sterbehilfe (1)
- Sterbehilfe Italien (1)
- Sterbehilfe italienische Perspektive (1)
- Steroidhormonrezeptor (1)
- Stichprobenfehler (1)
- Stichprobennahme (1)
- Stickstoffdeposition (1)
- Stickstoffoxide (1)
- Stillen (1)
- Stimulus-Response binding (1)
- Stimulus-response learning (1)
- Stipendiat (1)
- Stirnhirn (1)
- Stochastic Differential Equation (1)
- Stochastische Approximation (1)
- Stochastische Differentialgleichungen (1)
- Stochastische Optimierung (1)
- Stochastische Quantisierung (1)
- Stochastische optimale Kontrolle (1)
- Stochastischer Prozess (1)
- Stofftransport (1)
- Stomach (1)
- Stomatal conductance (1)
- Stomatäre Leitfähigkeit (1)
- Stopping rule (1)
- Strafbarkeit (1)
- Strafjustiz (1)
- Strahlstrom Meteorologie (1)
- Strategie (1)
- Strategische Planung (1)
- Strategy (1)
- Stratified sampling (1)
- Stream of (1)
- Stresstest (1)
- Strontium-85 (1)
- Strontium-90 (1)
- Stroop Task (1)
- Structural Equation Modelling (1)
- Structured Eurobonds (1)
- Strukturierte Produkt (1)
- Strukturierte Produkte (1)
- Strukturoptimierung (1)
- Students (1)
- Studienleistung (1)
- Sturm (1)
- Subarachnoidalblutung (1)
- Subjective income uncertainty (1)
- Subsaharisches Afrika (1)
- Subset Selection (1)
- Suche (1)
- Sulfadiazin (1)
- Surface Lifted Index (1)
- Survey Methodology (1)
- Survey Statistics (1)
- Survey statistics (1)
- Surveys (1)
- Switzerland (1)
- Sympathikus (1)
- Syntaktische Analyse (1)
- Synthetic micro data generation (1)
- Synthetische Daten (1)
- Systematik (1)
- Südafrika <Staat> (1)
- Südkorea (1)
- Südostasien (1)
- THP-1 (1)
- TSST-VR (1)
- Takeover (1)
- Takeover defenses, Covid-19, firm value, exogenous shocks, family firm, family involvement, crisis (1)
- Tarifverhandlung (1)
- Tawada, Yōko (1)
- Taxonomie (1)
- Taylor Shift Operator (1)
- Taylor shift operator (1)
- Teamwork (1)
- Technologie (1)
- Technologiepolitik (1)
- Teilzeitbeschäftigung (1)
- Telekommunikationsnetz (1)
- Television, social media, habit formation (1)
- Terpene (1)
- Terrestrisches Laserscanning (1)
- Terrestrisches ükosystem (1)
- Test-retest (1)
- Testen (1)
- Testergebnis (1)
- Testosteron (1)
- Thalamus (1)
- The Corrections (1)
- The Hobbit or There and back again (1)
- The Illustrated London news (1)
- The Lord of the Rings (1)
- Theatre (1)
- Theoretische Informatik (1)
- Theorie (1)
- Therapeut (1)
- Thermal stresses (1)
- Thermales Infrarot (1)
- Thermalluftbild (1)
- Thin Sea Ice (1)
- Thread (1)
- Tiermodell (1)
- Time dependant Weibull-distribution (1)
- Time series analysis (1)
- Tolkien, J.R.R. (1)
- Tomografie (1)
- Topological Algebra (1)
- Topologische Algebra (1)
- Topologische Algebra mit Gewebe (1)
- Topologische Sensitivität (1)
- Total Survey Error (1)
- Tourism (1)
- Tourismus (1)
- Touroperator (1)
- Toxicity (1)
- Toxikologie (1)
- Trade (1)
- Trademarks (1)
- Transaction Pattern (1)
- Transaktionskosten (1)
- Transculturalism (1)
- Transfer (1)
- Transfer function model (1)
- Transfer learning (1)
- Transitionssystem (1)
- Transitivität (1)
- Transkript (1)
- Transkription <Genetik> (1)
- Transkulturalismus (1)
- Transmissionsmechanismus (1)
- Trauma (1)
- Trier Social Stress Test (1)
- Trockengebiet (1)
- Trockenheit (1)
- Trockenstress Detektion (1)
- Trophic interactions (1)
- Tsunami (1)
- Turkey (1)
- Türkei (1)
- UAV (1)
- UNCCD (1)
- Ukraine (1)
- Ultradistribut (1)
- Umgangsformen (1)
- Umwelt (1)
- Umweltbewusstsein (1)
- Umweltfaktor (1)
- Umweltgerechtigkeit (1)
- Umweltprobe (1)
- Unbewegliche Sache (1)
- Uncertainty (1)
- Uncle Tom (1)
- Unemployment benefits (1)
- Uniqueness (1)
- Universal Eating Monitor (1)
- Universal functions (1)
- Universal overconvergence (1)
- Universal power series (1)
- Universelle Funktionen (1)
- Universelle Potenzreihen (1)
- Universelle Überkonvergenz (1)
- Unterforderung (1)
- Unterkörper Unterdruck (1)
- Unternehmensbewertung (1)
- Unternehmensdaten (1)
- Unternehmer (1)
- Unterrichtsbefreiung (1)
- Unterrichtsfach (1)
- Unvollkommene Information (1)
- Ursula (1)
- Usage-based linguistics (1)
- Utility analysis (1)
- Utopie (1)
- Vaccination (1)
- Vagus (1)
- Value at Risk (1)
- Variationsungleichung (1)
- Vater (1)
- Vegetarianism (1)
- Vegetation Index (1)
- Vegetationsindex (1)
- Venture Capital (VC) (1)
- Venture Debt, Entrepeneeurial Finance (1)
- Venture capital (1)
- Verarbeitendes Gewerbe (1)
- Verb (1)
- Verbesserung (1)
- Verbraucherverhalten (1)
- Verbreitung (1)
- Verbreitungsökologie (1)
- Verbundwerkstoff (1)
- Vergangenheitsbewältigung (1)
- Vergewaltigung (1)
- Verhaltensgenetik (1)
- Verhaltensmuster (1)
- Verhaltensstörung (1)
- Verifikation (1)
- Verkettung (1)
- Verkleidung <Motiv> (1)
- Verkleidungs-Motiv (1)
- Verlangen (1)
- Vermögen (1)
- Vermögensverwaltung (1)
- Verpackung (1)
- Verschwendung (1)
- Versorgungsnetz (1)
- Versroman (1)
- Versuchsplanung (1)
- Verteiltes System (1)
- Verteilungsgerechtigkeit (1)
- Vertrauen (1)
- Verwaltungshandeln (1)
- Verwitterung (1)
- Verzerrung (1)
- Videospiel (1)
- Virtual Reality (1)
- Virtuelle Realität (1)
- Virtuelle Umgebung (1)
- Visceral perception (1)
- Visuelle Aufmerksamkeit (1)
- Visuelle Kommunikation (1)
- Viszerale Wahrnehmung (1)
- Vorbild (1)
- Vorkonditionierung (1)
- Vorsichtssparen (1)
- Vorsorge (1)
- WWW (1)
- Wachtelweizen (1)
- Wahnsinn <Motiv> (1)
- Waldboden (1)
- Waldtyp (1)
- Wandel (1)
- Wapshot Chronicle (1)
- War in Ukraine (1)
- Warteschlangentheorie (1)
- Waschmittel (1)
- Wasser (1)
- Wasserhaushalt (1)
- Wassermangel (1)
- Wassernattern (1)
- Wasserstress (1)
- Water Framework Directive (1)
- Water balance simulation (1)
- Watershed modelling (1)
- Wealth surveys (1)
- Web-Applications (1)
- Webbed Spaces (1)
- Wechselkurs (1)
- Wechselwarme (1)
- Weibull-Verteilung (1)
- Weighted Regression (1)
- Weingärung (1)
- Weißklee (1)
- Weltbankkonditionalität (1)
- Wertpapie (1)
- Wertschöpfung (1)
- Western (1)
- Western Film (1)
- White clover (1)
- Whitney jets (1)
- Whitney's extension problem (1)
- Whitneys Extensionsproblem (1)
- Widerstand (1)
- Willenskraft (1)
- Wind (1)
- Windfeld (1)
- Windkraftwerk (1)
- Wirkung (1)
- Wissenschaftlich Zeitschrift (1)
- Wissensvermittlung (1)
- Wohlfahrtstheorie (1)
- Wolke (1)
- Work Stress (1)
- Workplace (1)
- World Bank Conditionality (1)
- World Wide Web (1)
- Wright (1)
- Wuchsmodellierung (1)
- Wurzelraum (1)
- Währungsreserve (1)
- Währungsunion (1)
- Wärmeanomalie (1)
- Wärmestrahlung (1)
- Wüstenkonvention (1)
- XML (1)
- XOR Parity (1)
- Xenobiotics (1)
- Yuri (1)
- Z (1)
- Zeami (1)
- Zebrabärbling (1)
- Zeit (1)
- Zeitallokation (1)
- Zeitreihenanalyse (1)
- Zeitschrifteninhaltsanalyse (1)
- Zellzyklus (1)
- Zellzyklus-Regulation (1)
- Zentralaustralien (1)
- Zentralnervensystem (1)
- Ziel (1)
- Zoologie (1)
- Zuckergehalt (1)
- Zufallsgraph (1)
- Zugang (1)
- Zugehörigkeit (1)
- Zytokin (1)
- abiotic factors (1)
- abiotische Faktoren (1)
- absenteeism (1)
- abundance (1)
- academic article (1)
- acetylcholine (1)
- acid mine drainage (1)
- acquisition (1)
- action control (1)
- action versus state orientation, self-regulation, self-access, alienation, mindfulness meditation, social support, PSI theory (1)
- activity cycle (1)
- actual evapotranspiration (1)
- adaptive hypermedia (1)
- adherence (1)
- adolescents (1)
- advanced heart failure (1)
- aerial imagery (1)
- affect (1)
- age stereotypes (1)
- agricultural dust (1)
- airborne LiDAR (1)
- akademisches Selbstkonzept (1)
- algorithm analysis (1)
- allozyme electrophoresis (1)
- alternating projections (1)
- amnesty (1)
- analysistransplantation (1)
- analytic functional (1)
- anterior cingulate (1)
- antibiotic (1)
- argan tree (1)
- arterial spin labeling (1)
- ascaridol (1)
- associative learning (1)
- asymptotic analysis (1)
- asymptotically optimal codebooks (1)
- asymptotisch optimale Codebücher (1)
- atmospheric modeling (1)
- atmospheric modelling (1)
- atmospheric pollution (1)
- atmospheric water balance (1)
- attitude formation (1)
- autobiography (1)
- automatische Handlungsplanung (1)
- automatische Reizverarbeitung (1)
- auxiliary problem principle (1)
- baroreceptor (1)
- barriers (1)
- behavioural ecology (1)
- best before (1)
- bias correction (1)
- biases in judgement (1)
- binary (1)
- biodiversity (1)
- biodiversity hotspots (1)
- biogas (1)
- biomethantion (1)
- blood oxygen level dependent (BOLD) contrast (1)
- body composition (1)
- border closure (1)
- border dynamics (1)
- border protection (1)
- border shifts (1)
- bottom-up-therapy (1)
- boundaries (1)
- brain (1)
- branch-and-bound (1)
- britische medien (1)
- british media (1)
- bulimia (1)
- bundle-method (1)
- burrows (1)
- business surveys (1)
- cache behavior (1)
- calibration (1)
- canon formation (1)
- canopy surface resistance (1)
- career formation (1)
- catchment management (1)
- cave (1)
- cell culture (1)
- cell cycle (1)
- central adiposity (1)
- cerebral blood flow (1)
- change mapping (1)
- characteristics of pre-treated waste (1)
- chemical communication (1)
- chemical weathering (1)
- chemometrics (1)
- choice-based conjoint analysis (1)
- chronic stress (1)
- chronischer Stress (1)
- circadian clock genes (1)
- circadian clock system (1)
- civil law (1)
- cluster analysis (1)
- clustering (1)
- co-registration (1)
- cognition (1)
- cognitive control (1)
- cognitive linguistics (1)
- cold pressor (1)
- combinatorial optimization (1)
- coming out (or disclosure) (1)
- common law (1)
- common variable immunodeficiency (1)
- community-based production (1)
- commuting (1)
- competitive analysis (1)
- completely positive (1)
- completely positive cone (1)
- complex dynamics (1)
- complex networks (1)
- complex systems (1)
- complexity (1)
- complexity reduction (1)
- complimentarity (1)
- composite materials (1)
- composition operator (1)
- computational complexity (1)
- computational fluid dynamics (1)
- confidence region (1)
- confluent hypergeometric function (1)
- conformance checking (1)
- conservation value (1)
- conspiracy myths (1)
- conspiracy theories (1)
- controlled queueing system (1)
- convalescent plasma (1)
- convergence (1)
- convergence theory (1)
- convolution operator (1)
- copositive cone (1)
- coronavirus (1)
- corpus linguistics (1)
- correction factor (1)
- cortex (1)
- corticosteroid receptor (1)
- cortisol response to awakening (1)
- counter-stimulation (1)
- criminal liability (1)
- critical boundary work (1)
- crop stress (1)
- cross-border cooperation project (1)
- cross-border labor market (1)
- cross-border spatial development (1)
- cross-border trade union (1)
- cross-country (1)
- cross-cultural (1)
- cross-frequency coupling (1)
- cross-sectional returns (1)
- crowdfunding (1)
- crystallized abilities (1)
- customer loyalty (1)
- cutting planes (1)
- cytokine (1)
- cytokines (1)
- dACC (1)
- daily mobility (1)
- data quality (1)
- date labeling (1)
- de Rham cohomology (1)
- decision making (1)
- decision making pattern (1)
- decision-making (1)
- degradation (1)
- dendritic cells (1)
- dendritische Zellen (1)
- design of experiments (1)
- detergents (1)
- development (1)
- diasporic identity (1)
- diasporische identität (1)
- diatomaceous earth (1)
- die circadiane Uhr-Gene (1)
- difference-in-differences (1)
- differentiated instruction (1)
- digital library (1)
- dilute particle suspension (1)
- directness (1)
- disagreement (1)
- disciplinary borders (1)
- discipline (1)
- discourse analysis (1)
- dispersal (1)
- distractor processing (1)
- distress (1)
- diversity (1)
- domain decomposition (1)
- domestic food waste (1)
- driver assistance system (1)
- dropout (1)
- dry tropical forest (1)
- drylands (1)
- dual task interference (1)
- dynamics of mammal population (1)
- early change (1)
- early life adversity (1)
- early modern (1)
- early response (1)
- eating behavior (1)
- eating behaviour (1)
- ecological modelling (1)
- ecological momentary assessment (1)
- ecological niche (1)
- ecology (1)
- ectotherms (1)
- education (1)
- education aid (1)
- educational assessment (1)
- effectiveness (1)
- efficacy (1)
- eigenfunction expansion (1)
- electrocardiogram (1)
- electroencephalogram (1)
- emergency remote teaching (1)
- emissivity (1)
- emotion regulation (1)
- emotional intelligence (1)
- empirical evaluation (1)
- employment (1)
- employment estimation (1)
- empowerment-in-cinema (1)
- encoding (1)
- endliche Boustrophedon-Automaten (1)
- entomopathogene Pilze (1)
- entomopathogenic fungi (1)
- entrepreneurial opportunities (1)
- entrepreneurship (1)
- environmental impact (1)
- epidermal dendritic cells (1)
- epidermale dendritische Zellen (1)
- epigenetic programming (1)
- equal distribution (1)
- erosion measurement (1)
- ethnicity (1)
- ethnizität (1)
- eugenol (1)
- eukaryotes (1)
- evaluation (1)
- evaluation framework (1)
- evapotranspiration (ET) modeling (1)
- event file (1)
- event log preprocessing (1)
- event reconstruction (1)
- executive functions (1)
- exekutive Funktionen (1)
- experimental design (1)
- extension operator (1)
- extrem positive Rendite (1)
- extreme positive returns (1)
- extreme value analysis (1)
- eye-tracking (1)
- eyeblink conditioning (1)
- fMRT (1)
- factor analysis (1)
- familial risk (1)
- family (1)
- family business (1)
- family management (1)
- family novel (1)
- fathers (1)
- faunmap database (1)
- female entrepreneurship (1)
- female identity formation (1)
- fillers (1)
- financial crisis (1)
- financial derivatives (1)
- fine mapping (1)
- finite element method (1)
- fire performance (1)
- fissurization (1)
- fitness tracker (1)
- flood (1)
- floods (1)
- flow control (1)
- fluid abilities (1)
- flushing (1)
- foliated manifolds (1)
- food preference (1)
- food security (1)
- foreign policy (1)
- forensic voice comparison (1)
- forest degradation (1)
- forest inventory (1)
- forestry (1)
- forests (1)
- formal verification (1)
- foss (1)
- fractional Poisson equation (1)
- frame errors (1)
- frequency effects (1)
- fructification (1)
- functional MRI (1)
- functional specialisation of hemispheres (1)
- fungicides (1)
- funktionelle NMR-Tomographie (1)
- games (1)
- games, experimental (1)
- ganze Funktion (1)
- gap flow (1)
- gene expression (1)
- generational stage (1)
- genetic diversity (1)
- genetics (1)
- genetische Struktur (1)
- genomic structure (1)
- geobia (1)
- geography of knowledge (1)
- geometric (1)
- gewöhnliche Differentialgleichungen (1)
- glacial refugia (1)
- glucocorticoids (1)
- glycaemic index (1)
- grammatical inference (1)
- graph embedding (1)
- growth mixture modeling (1)
- growth modelling (1)
- habitat fragmentation (1)
- harvest dates (1)
- hazard mitigation (1)
- health (1)
- health economics (1)
- heart failure (1)
- heart transplant (1)
- heavy metal (1)
- herpetology (1)
- hesitations (1)
- high-resolution (1)
- hippocampal atrophy (1)
- hippocampal volume assessment (1)
- historical metadata (1)
- history textbook dispute (1)
- hobbit (1)
- hochauflösend (1)
- home (1)
- homological algebra (1)
- homological methods (1)
- homologische Methoden (1)
- homosexuality (1)
- human capital (1)
- human rights (1)
- hybrid (1)
- hybrid organizations (1)
- hybridization (1)
- hydraulic modelling (1)
- hydrodynamics (1)
- hydrogeological modeling (1)
- hypercyclicity (1)
- hypergeometric functions (1)
- hyperspektral (1)
- hypothalamic-pituitary-adrenal axis (1)
- hypothalamo-pituitary-adrenal-axis (1)
- hypothalamus-pituitary-adrenal axis (1)
- ice shelves (1)
- ice thickness (1)
- identity (1)
- idiosyncratic volatility (1)
- idiosynkratische Volatilität (1)
- imaging spectroscopy (1)
- immunity (1)
- immunoglobulin replacement (1)
- implicit learning (1)
- impulsivity (1)
- in vitro (1)
- inclusion (1)
- inclusive education (1)
- incompressible Newtonian fluid (1)
- indisches Kino (1)
- individual based model (1)
- individual investor (1)
- individual tree detection (1)
- inexact (1)
- inexact Gauss-Newton methods (1)
- information processing (1)
- inhibitory control (1)
- initial coin offering (1)
- innovation (1)
- insect conservation (1)
- insecticides (1)
- integration (1)
- intellectual property rights (1)
- interference (1)
- intergenerational programs (1)
- intergenerational programs, evaluation, adolescents, older adults, age stereotypes, ageism, youthism (1)
- internationale Kooperation (1)
- internet intervention (1)
- interoception (1)
- intersection non-emptiness (1)
- intrusions (1)
- inversion (1)
- investor communication (1)
- invisible deviating events (1)
- isamophobia (1)
- isoeugenol (1)
- judgement accuracy (1)
- jumping endliche Automaten (1)
- just transition (1)
- k-Anonymity (1)
- k-Means-Algorithmus (1)
- katabatic wind (1)
- knowledge formation (1)
- kognitive Kontrolle (1)
- kombinatorische Optimierung (1)
- komplexe Dynamik (1)
- konvexe Reforumlierungen (1)
- kopositiver Kegel (1)
- land cover classification (1)
- land degradattion (1)
- land use (1)
- landslides (1)
- language processing (1)
- large scale problems (1)
- late quaternary (1)
- law reform commissions (1)
- learning (1)
- legalisation (1)
- lengthening (1)
- linear dynamics (1)
- linkage and mutational analysis (1)
- local limit (1)
- local quantization error (1)
- local wastewater planning (1)
- logarithmic-quadratic distance function (1)
- logarithmisch-quadratische Distanzfunktion (1)
- lokaler Quantisierungsfehler (1)
- long DNA barcodes (1)
- lord of the rings (1)
- lower body negative pressure (1)
- lung (1)
- lymphocytes (1)
- machine learning (1)
- macrophages (1)
- management (1)
- manager (1)
- mangrove (1)
- markov increment (1)
- mate choice (1)
- maternal care (1)
- mean field approximation (1)
- mean vector length (1)
- media effects (1)
- mediated traumatization (1)
- membrane glucocorticoid receptor (1)
- membraner Glucocorticoidrezeptor (1)
- memory (1)
- memory distance (1)
- memory representation (1)
- menstrual cycle (1)
- meta-research (1)
- metabarcoding (1)
- metabolism (1)
- metahistorical (1)
- metahistorisch (1)
- meteorology (1)
- methylation and SNPs (1)
- methylphenidate (1)
- microorganisms (1)
- microrefugia (1)
- midcingulate cortex (1)
- migration (1)
- mineralocorticoid receptor (1)
- mineralogy (1)
- miombo woodland (1)
- mircrosatellite (1)
- miscegenation (1)
- mismatch negativity (1)
- missile defense (1)
- missing data (1)
- mixing (1)
- mobile Telekommunikation (1)
- model evaluation (1)
- model order reduction (1)
- model performance (1)
- model predictive control (1)
- model-based estimation (1)
- modulation (1)
- modulation index (1)
- monocytes (1)
- monotone (1)
- motion energy analysis (1)
- motive disposition (1)
- mountain topography (1)
- multi-level (1)
- multiculturalism (1)
- multigrid (1)
- multikulturalismus (1)
- multilevel Toeplitz (1)
- multilinear algebra (1)
- multilingual (1)
- multimedia (1)
- multinomial (1)
- multispectral (1)
- mutation (1)
- mycotoxin degradation (1)
- n.a. (1)
- naming practices (1)
- nationalism (1)
- natural killer cells (1)
- nature imagery (1)
- natürliche Killerzellen (1)
- neuroendocrine system (1)
- neuroimaging (1)
- nicht-genomische Effekte (1)
- nichtlinearer VAR (1)
- nichtnegativ (1)
- nitrogen oxides (1)
- noh (1)
- non-convex (1)
- non-family business (1)
- non-finite complement clauses (1)
- non-genomic effects (1)
- non-linear VAR (1)
- nonlinear optimization (1)
- nonnegative (1)
- nonverbal synchrony (1)
- norepinephrine (1)
- norm mineral calculation (1)
- normal approximation (1)
- northwestern China (1)
- nostalgia (1)
- novel of the 20th century (1)
- nuclear receptor (1)
- nucleus accumbens (1)
- numerical models (1)
- nutrient demands (1)
- nutrient exports (1)
- older adults (1)
- online presentation (1)
- open data (1)
- open science (1)
- open-canopy woodland (1)
- optimal continuity estimates (1)
- optimal quantization (1)
- optimale Quantisierung (1)
- optimale Stetigkeitsabschätzungen (1)
- optimization (1)
- options (1)
- ordinary differential equations (1)
- organization theory (1)
- overloading of criminal justice (1)
- p-glycoprotein (1)
- paleotropis (1)
- pandemic (1)
- para-phenylenediamine (PPD) (1)
- parameter dependence (1)
- parameter estimation (1)
- parameter identification (1)
- parameterised approximation (1)
- paraverbal behavior (1)
- parental care (1)
- part-time entrepreneurship (1)
- partial differential equations (1)
- partial differential operators of first order as generators of C0-semigroups (1)
- partial integro-differential equation (1)
- particulate matter (1)
- partielle Differentialgleichungen (1)
- partielle Differentialoperatoren erster Ordnung als Erzeuger von C0-Halbgruppen (1)
- partielle Integro Differentialgleichung (1)
- partielle Integro-Differentialgleichungen (1)
- partielle Integrodifferentialgleichungen (1)
- partitioning (1)
- pastoral (1)
- patents (1)
- patient-focused psychotherapy research (1)
- patienten-orientierte Psychotherapieforschung (1)
- peak-over-threshold (1)
- peer-reviewed journal (1)
- penalty (1)
- perception (1)
- performance (1)
- periodic catatonia (1)
- periodische Katatonie (1)
- peripheren mononukleären Blutzellen (PBMC) (1)
- person name disambiguation (1)
- personal trust (1)
- personalized psychotherapy (1)
- pest species (1)
- pesticide application (1)
- pharmaceuticals (1)
- phase-amplitude coupling (1)
- phenology (1)
- phosphogypsum (1)
- phototropism (1)
- phyllites (1)
- phylogeography (1)
- physico-mechanical properties (1)
- physiological parameters (1)
- placenta (1)
- plant adaptation mechanisms (1)
- plant architecture (1)
- plastic (1)
- platform economy (1)
- poetry (1)
- point set registration (1)
- pointer year (1)
- polynomial spline (1)
- polynyas (1)
- population genetics (1)
- population modelling (1)
- port-Hamiltonian (1)
- post-transcriptional regulation (1)
- post-transkriptionelle Regulierung (1)
- post-traumatic stress disorder (1)
- postkolonialismus (1)
- postnatal stress factors (1)
- postnatale Stressfaktoren (1)
- posttraumatic stress disorder (1)
- practice (1)
- pre-acquisition phase (1)
- preconditioning (1)
- predeterminer adjective phrases (1)
- preferential flow (1)
- premature harvest (1)
- prenatal adversity (1)
- prenatal programming (1)
- prenatal stress (1)
- prenatal stress factors (1)
- prenatal tobacco exposure (1)
- prepulse inhibition (1)
- preregistration (1)
- presenteeism (1)
- press photography (1)
- pretreated waste (1)
- pricing (1)
- primärer Photonenfluss (1)
- principal component analysis (1)
- private banking (1)
- process mining (1)
- promoter region (1)
- proof of concept study (1)
- proteomics (1)
- provocation (1)
- pränatale Programmierung (1)
- pränatale Risikofaktoren (1)
- pränatale Stressfaktoren (1)
- pränatale Tabakexposition (1)
- pränataler Stress (1)
- psychological distance (1)
- psychologische Beratung (1)
- psychology and behaviorsocial isolation (1)
- psychology students (1)
- psychometric validation (1)
- public perception (1)
- public sphere (1)
- pulsatility (1)
- quantitative Linguistik (1)
- quantitative linguistics (1)
- quantitative sensory testing (1)
- quantization ball (1)
- quantization radius (1)
- questionnaires (1)
- race (1)
- rain (1)
- rape (1)
- rapport (1)
- reception patterns (1)
- rectangular probabilities (1)
- recurring events (1)
- reduced order modelling (1)
- reduced-order modelling (1)
- regeneration (1)
- region growing (1)
- rental prices (1)
- reordering (1)
- reproducibility (1)
- resilience (1)
- resistivity tomography (1)
- resource competition (1)
- resource governance (1)
- retrieval practice (1)
- rhizosphere (1)
- ribosomal (1)
- risk assessment (1)
- risk factors (1)
- risk measure (1)
- role theory (1)
- roof slates (1)
- routine care (1)
- saccade (1)
- salamander (1)
- salamanders (1)
- salivary alpha-amylase (1)
- salt (1)
- sampling frame (1)
- satellite TIR mission (1)
- scan statistics (1)
- scholarship students (1)
- school (1)
- school performance (1)
- school subject (1)
- sea-ice (1)
- second language acquisition (1)
- second order cone (1)
- secondary party (1)
- security policy (1)
- segmentation (1)
- selection (1)
- selective forgetting (1)
- selectivity (1)
- selektive Aufmerksamkeit (1)
- self-concept (1)
- self-concodrance (1)
- self-efficacy (1)
- self-esteem (1)
- self-perception (1)
- self-potential mapping (1)
- sentinel 1 (1)
- sentinel-2 (1)
- series expansion (1)
- sexual size dimorphism (1)
- shales (1)
- shape calculus (1)
- sharing economies (1)
- sick pay (1)
- similarity-based retrieval (1)
- simulation study (1)
- skin (1)
- skin sensitization (1)
- slope stability modelling (1)
- smoking (1)
- social boundaries (1)
- social contactssurvival (1)
- social entrepreneurs (1)
- social innovation (SI) (1)
- social innovation networks (1)
- social self-concept (1)
- social service organizations (1)
- social sustainability (1)
- socio-nature relations (1)
- soil contamination (1)
- soil microbial activity (1)
- soil microbial biomass (1)
- soil microhabitats (1)
- soil surface resistance (1)
- soil water content (1)
- solidarity (1)
- somatische Komorbiditäten (1)
- soziale Selbstkonzepte (1)
- spaces of opportunity (1)
- spatial planning (1)
- spectral emissivity (1)
- speech recognition (1)
- splitting (1)
- stable carbon isotope (1)
- statistical modelling (1)
- statistics (1)
- stochastic Predictor-Corrector-Scheme (1)
- stochastic partial differential algebraic equation (1)
- strategic acquisition (1)
- stream of consciousness (1)
- stress hyporesponsive period (1)
- stress reaction (1)
- structural optimization (1)
- structure (1)
- structure-preserving (1)
- sub-Saharan Africa (1)
- subarachnoid haemorrhage (1)
- subjektive Einkommensunsicherheit (1)
- subprime mortgage (1)
- substance abuse (1)
- sulfadiazine (1)
- surrogate modeling (1)
- sustainability (1)
- synchronizing automata (1)
- synergetic linguistics (1)
- synergetische Linguistik (1)
- system trust (1)
- target screening and selection (1)
- teacher judgement (1)
- teachers (1)
- temperature (1)
- tensor methods (1)
- terrestrial laser scanning (1)
- testing (1)
- text memory (1)
- thermal infrared (1)
- thermal infrared (TIR) (1)
- thermal infrared remote sensing (1)
- thermal remote sensing (1)
- threat, stress, trigger, needs (1)
- threshold (1)
- thunderstorm (1)
- time complexity (1)
- time series (1)
- tolkien (1)
- topographic flow (1)
- topological derivative (1)
- topology optimization (1)
- toxicity (1)
- trademarks (1)
- transaction costs (1)
- transcultural (1)
- transgenerational intention (1)
- transition (1)
- transitivity (1)
- trauma therapy (1)
- traumatische Erfahrungen (1)
- tree density (1)
- tree matching (1)
- tree-ring analysis (1)
- trust-region method (1)
- trust-region methods (1)
- turbulence parameterization (1)
- uncertainty (1)
- uncoupling protein (1)
- uncritical patriotism (1)
- underdetermined nonlinear least squares problem (1)
- underlying stocks (1)
- uniqueness seeking (1)
- universal power series (1)
- urban and rural boundaries (1)
- user modeling (1)
- utilization pathways (1)
- utopia (1)
- vagus (1)
- vegetation index (1)
- video games (1)
- visceral awareness (1)
- visual change detection (1)
- visual communication (1)
- visual empathy (1)
- visuelle Wahrnehmung (1)
- visueller Mismatch (1)
- viszerale Empfindung (1)
- viticulture (1)
- voice (1)
- volcanic (1)
- vollständig positiv (1)
- vollständig positiver Kegel (1)
- vorbehandelter Abfälle (1)
- vorbeugender Hochwasserschutz (1)
- wastewater (1)
- water stress (1)
- water stress detection (1)
- water use (1)
- waterlogging (1)
- weighting (1)
- well-being (1)
- wetland conservation (1)
- wind erosion (1)
- wine fermentation (1)
- women's poetry (1)
- women's writing (1)
- woody cover (1)
- workplace (1)
- xenobiotic metabolism (1)
- zerebraler Blutfluss (1)
- zugrunde liegende Aktien (1)
- zurückkehrende(RFA) (1)
- Ästuar (1)
- Ätiologie (1)
- Öffentliche Schule (1)
- Öffentlichkeit (1)
- Ökoeffizienz (1)
- Ökologische Dienstleistungen (1)
- Ökosystemdienstleistungen (1)
- Überflutung (1)
- Überforderung (1)
- Überkonvergenz (1)
- Überlastung (1)
- Überleben (1)
- Überstunde (1)
- Überstunden (1)
- Übung (1)
- ükosystem (1)
Institute
- Raum- und Umweltwissenschaften (99)
- Psychologie (94)
- Fachbereich 4 (57)
- Mathematik (47)
- Fachbereich 6 (39)
- Wirtschaftswissenschaften (29)
- Fachbereich 1 (25)
- Informatik (19)
- Anglistik (14)
- Rechtswissenschaft (14)
We use a novel sea-ice lead climatology for the winters of 2002/03 to 2020/21 based on satellite observations with 1 km2 spatial resolution to identify predominant patterns in Arctic wintertime sea-ice leads. The causes for the observed spatial and temporal variabilities are investigated using ocean surface current velocities and eddy kinetic energies from an ocean model (Finite Element Sea Ice–Ice-Shelf–Ocean Model, FESOM) and winds from a regional climate model (CCLM) and ERA5 reanalysis, respectively. The presented investigation provides evidence for an influence of ocean bathymetry and associated currents on the mechanic weakening of sea ice and the accompanying occurrence of sea-ice leads with their characteristic spatial patterns. While the driving mechanisms for this observation are not yet understood in detail, the presented results can contribute to opening new hypotheses on ocean–sea-ice interactions. The individual contribution of ocean and atmosphere to regional lead dynamics is complex, and a deeper insight requires detailed mechanistic investigations in combination with considerations of coastal geometries. While the ocean influence on lead dynamics seems to act on a rather long-term scale (seasonal to interannual), the influence of wind appears to trigger sea-ice lead dynamics on shorter timescales of weeks to months and is largely controlled by individual events causing increased divergence. No significant pan-Arctic trends in wintertime leads can be observed.
The microbial enzyme alkaline phosphatase contributes to the removal of organic phosphorus compounds from wastewaters. To cope with regulatory threshold values for permitted maximum phosphor concentrations in treated wastewaters, a high activity of this enzyme in the biological treatment stage, e.g., the activated sludge process, is required. To investigate the reaction dynamics of this enzyme, to analyze substrate selectivities, and to identify potential inhibitors, the determination of enzyme kinetics is necessary. A method based on the application of the synthetic fluorogenic substrate 4-methylumbelliferyl phosphate is proven for soils, but not for activated sludges. Here, we adapt this procedure to the latter. The adapted method offers the additional benefit to determine inhibition kinetics. In contrast to conventional photometric assays, no particle removal, e.g., of sludge pellets, is required enabling the analysis of the whole sludge suspension as well as of specific sludge fractions. The high sensitivity of fluorescence detection allows the selection of a wide substrate concentration range for sound modeling of kinetic functions.
- Fluorescence array technique for fast and sensitive analysis of high sample numbers
- No need for particle separation – analysis of the whole (diluted) sludge suspension
- Simultaneous determination of standard and inhibition kinetics
The forensic application of phonetics relies on individuality in speech. In the forensic domain, individual patterns of verbal and paraverbal behavior are of interest which are readily available, measurable, consistent, and robust to disguise and to telephone transmission. This contribution is written from the perspective of the forensic phonetic practitioner and seeks to establish a more comprehensive concept of disfluency than previous studies have. A taxonomy of possible variables forming part of what can be termed disfluency behavior is outlined. It includes the “classical” fillers, but extends well beyond these, covering, among others, additional types of fillers as well as prolongations, but also the way in which fillers are combined with pauses. In the empirical section, the materials collected for an earlier study are re-examined and subjected to two different statistical procedures in an attempt to approach the issue of individuality. Recordings consist of several minutes of spontaneous speech by eight speakers on three different occasions. Beyond the established set of hesitation markers, additional aspects of disfluency behavior which fulfill the criteria outlined above are included in the analysis. The proportion of various types of disfluency markers is determined. Both statistical approaches suggest that these speakers can be distinguished at a level far above chance using the disfluency data. At the same time, the results show that it is difficult to pin down a single measure which characterizes the disfluency behavior of an individual speaker. The forensic implications of these findings are discussed.
Redox-driven biogeochemical cycling of iron plays an integral role in the complex process network of ecosystems, such as carbon cycling, the fate of nutrients and greenhouse gas emissions. We investigate Fe-(hydr)oxide (trans)formation pathways from rhyolitic tephra in acidic topsoils of South Patagonian Andosols to evaluate the ecological relevance of terrestrial iron cycling for this sensitive fjord ecosystem. Using bulk geochemical analyses combined with micrometer-scale-measurements on individual soil aggregates and tephra pumice, we document biotic and abiotic pathways of Fe released from the glassy tephra matrix and titanomagnetite phenocrysts. During successive redox cycles that are controlled by frequent hydrological perturbations under hyper-humid climate, (trans)formations of ferrihydrite-organic matter coprecipitates, maghemite and hematite are closely linked to tephra weathering and organic matter turnover. These Fe-(hydr)oxides nucleate after glass dissolution and complexation with organic ligands, through maghemitization or dissolution-(re)crystallization processes from metastable precursors. Ultimately, hematite represents the most thermodynamically stable Fe-(hydr)oxide formed under these conditions and physically accumulates at redox interfaces, whereas the ferrihydrite coprecipitates represent a so far underappreciated terrestrial source of bio-available iron for fjord bioproductivity. The insights into Fe-(hydr)oxide (trans)formation in Andosols have implications for a better understanding of biogeochemical cycling of iron in this unique Patagonian fjord ecosystem.
Regional climate models are a valuable tool for the study of the climate processes and climate change in polar regions, but the performance of the models has to be evaluated using experimental data. The regional climate model CCLM was used for simulations for the MOSAiC period with a horizontal resolution of 14 km (whole Arctic). CCLM was used in a forecast mode (nested in ERA5) and used a thermodynamic sea ice model. Sea ice concentration was taken from AMSR2 data (C15 run) and from a high-resolution data set (1 km) derived from MODIS data (C15MOD0 run). The model was evaluated using radiosonde data and data of different profiling systems with a focus on the winter period (November–April). The comparison with radiosonde data showed very good agreement for temperature, humidity, and wind. A cold bias was present in the ABL for November and December, which was smaller for the C15MOD0 run. In contrast, there was a warm bias for lower levels in March and April, which was smaller for the C15 run. The effects of different sea ice parameterizations were limited to heights below 300 m. High-resolution lidar and radar wind profiles as well as temperature and integrated water vapor (IWV) data from microwave radiometers were used for the comparison with CCLM for case studies, which included low-level jets. LIDAR wind profiles have many gaps, but represent a valuable data set for model evaluation. Comparisons with IWV and temperature data of microwave radiometers show very good agreement.
COVID-19 was a harsh reminder that diseases are an aspect of human existence and mortality. It was also a live experiment in the formation and alteration of disease-related attitudes. Not only are these attitudes relevant to an individual’s self-protective behavior, but they also seem to be associated with social and political attitudes more broadly. One of these attitudes is Social Darwinism, which holds that a pandemic benefits society by enabling nature “to weed out the weak”. In two countries (N = 300, N = 533), we introduce and provide evidence for the reliability, validity, and usefulness of the Disease-Related Social Darwinism (DRSD) Short Scale measuring this concept. Results indicate that DRSD is meaningful related to other central political attitudes like Social Dominance Orientation, Authoritarianism and neoliberalism. Importantly, the scale significantly predicted people’s protective behavior during the Pandemic over and above general social Darwinism. Moreover, it significantly predicted conservative attitudes, even after controlling for Social Dominance Orientation.
People are increasingly concerned about how meat affects the environment, human health, and animal welfare, yet eating and enjoying meat remains a norm. Unsurprisingly, many people are ambivalent about meat—evaluating it as both positive and negative. Here, we propose that meat-related conflict is multidimensional and depends on people’s dietary group: Omnivores’ felt ambivalence relates to multiple negative associations that oppose a predominantly positive attitude towards meat, and veg*ans’ ambivalence relates to various positive associations that oppose a predominantly negative attitude. A qualitative study (N = 235; German) revealed that omnivores and veg*ans experience meat-related ambivalence due to associations with animals, sociability, sustainability, health, and sensory experiences. To quantify felt ambivalence in these domains, we developed the Meat Ambivalence Questionnaire (MAQ). We validated the MAQ in four pre-registered studies using self-report and behavioral data (N = 3,485; German, UK, representative US). Both omnivores and veg*ans reported meat-related ambivalence, but with differences across domains and their consequences for meat consumption. Specifically, ambivalence was associated with less meat consumption in omnivores (especially sensory-/animal-based ambivalence) and more meat consumption in veg*ans (especially sensory-/socially-based ambivalence). Network analyses shed further light on the nomological net of the MAQ while controlling for a comprehensive set of determinants of meat consumption. By introducing the MAQ, we hope to provide researchers with a tool to better understand how ambivalence accompanies behavior change and maintenance.
The COVID-19 pandemic has affected schooling worldwide. In many places, schools closed for weeks or months, only part of the student body could be educated at any one time, or students were taught online. Previous research discloses the relevance of schooling for the development of cognitive abilities. We therefore compared the intelligence test performance of 424 German secondary school students in Grades 7 to 9 (42% female) tested after the first six months of the COVID-19 pandemic (i.e., 2020 sample) to the results of two highly comparable student samples tested in 2002 (n = 1506) and 2012 (n = 197). The results revealed substantially and significantly lower intelligence test scores in the 2020 sample than in both the 2002 and 2012 samples. We retested the 2020 sample after another full school year of COVID-19-affected schooling in 2021. We found mean-level changes of typical magnitude, with no signs of catching up to previous cohorts or further declines in cognitive performance. Perceived stress during the pandemic did not affect changes in intelligence test results between the two measurements.
Addition of Phosphogypsum to Fire-Resistant Plaster Panels:
A Physic–Mechanical Investigation
(2023)
Gypsum (GPS) has great potential for structural fire protection and is increasingly used in construction due to its high-water retention and purity. However, many researchers aim to improve its physical and mechanical properties by adding other organic or inorganic materials such as fibers, recycled GPS, and waste residues. This study used a novel method to add non-natural GPS from factory waste (phosphogypsum (PG)) as a secondary material for GPS. This paper proposes to mix these two materials to properly study the effect of PG on the physico-mechanical properties and fire performance of two Tunisian GPSs (GPS1 and GPS2). PG initially replaced GPS at 10, 20, 30, 40, and 50% weight percentage (mixing plan A). The PGs were then washed with distilled water several times. Two more mixing plans were run when the pH of the PG was equal to 2.4 (mixing plan B), and the pH was equal to 5 (mixing plan C). Finally, a comparative study was conducted on the compressive strength, flexural strength, density, water retention, and mass loss levels after 90 days of drying, before/after incineration of samples at 15, 30, 45, and 60 min. The results show that the mixture of GPS1 and 30% PG (mixing plan B) obtained the highest compressive strength (41.31%) and flexural strength (35.03%) compared to the reference sample. The addition of 10% PG to GPS1 (mixing plan A) improved fire resistance (33.33%) and the mass loss (17.10%) of the samples exposed to flame for 60 min compared to GPS2. Therefore, PG can be considered an excellent insulating material, which can increase physico-mechanical properties and fire resistance time of plaster under certain conditions.
Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers
(2023)
Estimating the amount of material without significant losses at the end of hybrid casting is a problem addressed in this study. To minimize manufacturing costs and improve the accuracy of results, a correction factor (CF) was used in the formula to estimate the volume percent of the material in order to reduce material losses during the sample manufacturing stage, allowing for greater confidence between the approved blending plan and the results obtained. In this context, three material mixing schemes of different sizes and shapes (gypsum plaster, sand (0/2), gravel (2/4), and Posidonia oceanica fibers (PO)) were created to verify the efficiency of CF and more precisely study the physico-mechanical effects on the samples. The results show that the use of a CF can reduce mixing loss to almost 0%. The optimal compressive strength of the sample (S1B) with the lowest mixing loss was 7.50 MPa. Under optimal conditions, the addition of PO improves mix volume percent correction (negligible), flexural strength (5.45%), density (18%), and porosity (3.70%) compared with S1B. On the other hand, the addition of PO thermo-chemical treatment by NaOH increases the compressive strength (3.97%) compared with PO due to the removal of impurities on the fiber surface, as shown by scanning electron microscopy. We then determined the optimal mixture ratio (PO divided by a mixture of plaster, sand, and gravel), which equals 0.0321 because Tunisian gypsum contains small amounts of bassanite and calcite, as shown by the X-ray diffraction results.
This study scrutinizes press photographs published during the first 6 weeks of the Russian War in Ukraine, beginning February 24th, 2022. Its objective is to shed light on the emotions evoked in Internet-savvy audiences. This empirical research aims to contribute to the understanding of emotional media effects that shape attitudes and actions of ordinary citizens. Main research questions are: What kind of empathic reactions are observed during the Q-sort study? Which visual patterns are relevant for which emotional evaluations and attributions? The assumption is that the evaluations and attributions of empathy are not random, but follow specific patterns. The empathic reactions are based on visual patterns which, in turn, influence the type of empathic reaction. The identification of specific categories for visual and emotional reaction patterns are arrived at in different methodological processes. Visual pattern categories were developed inductively, using the art history method of iconography-iconology to identify six distinct types of visual motifs in a final sample of 33 war photographs. The overarching categories for empathic reactions—empty empathy, vicarious traumatization and witnessing—were applied deductively, building on E. Ann Kaplan's pivotal distinctions. The main result of this research are three novel categories that combine visual patterns with empathic reaction patterns. The labels for these categories are a direct result of the Q-factorial analysis, interpreted through the lense of iconography-iconology. An exploratory nine-scale forced-choice Q-sort study (Nstimuli = 33) was implemented, followed by self-report interviews with a total of 25 participants [F = 16 (64%), M = 9 (36%), Mage = 26.4 years]. Results from this exploratory research include motivational statements on the meanings of war photography from semi-structured post-sort-interviews. The major result of this study are three types of visual patterns (“factors”) that govern distinct empathic reactions in participants: Factor 1 is “veiled empathy” with highest empathy being attributed to photos showing victims whose corpses or faces were veiled. Additional features of “veiled empathy” are a strong anti-politician bias and a heightened awareness of potential visual manipulation. Factor 2 is “mirrored empathy” with highest empathy attributions to photos displaying human suffering openly. Factor 3 focused on the context. It showed a proclivity for documentary style photography. This pattern ranked photos without clear contextualization lower in empathy than those photos displaying the fully contextualized setting. To the best of our knowledge, no study has tested empathic reactions to war photography empirically. In this respect, the study is novel, but also exploratory. Findings like the three patterns of visual empathy might be helpful for photo selection processes in journalism, for political decision-making, for the promotion of relief efforts, and for coping strategies in civil society to deal with the potentially numbing or traumatizing visual legacy of the War in Ukraine.
Family firms play a crucial role in the DACH region (Germany, Austria, Switzerland). They are characterized by a long tradition, a strong connection to the region, and a well-established network. However, family firms also face challenges, especially in finding a suitable successor. Wealthy entrepreneurial families are increasingly opting to establish Single Family Offices (SFOs) as a solution to this challenge. An SFO takes on the management and protection of family wealth. Its goal is to secure and grow the wealth over generations. In Germany alone, there are an estimated 350 to 450 SFOs, with 70% of them being established after the year 2000. However, research on SFOs is still in its early stages, particularly regarding the role of SFOs as firm owners. This dissertation delves into an exploration of SFOs through four quantitative empirical studies. The first study provides a descriptive overview of 216 SFOs from the DACH-region. Findings reveal that SFOs exhibit a preference for investing in established companies and real estate. Notably, only about a third of SFOs engage in investments in start-ups. Moreover, SFOs as a group are heterogeneous. Categorizing them into three groups based on their relationship with the entrepreneurial family and the original family firm reveals significant differences in their asset allocation strategies. Subsequent studies in this dissertation leverage a hand-collected sample of 173 SFO-owned firms from the DACH region, meticulously matched with 684 family-owned firms from the same region. The second study focusing on financial performance indicates that SFO-owned firms tend to exhibit comparatively poorer financial performance than family-owned firms. However, when members of the SFO-owning family hold positions on the supervisory or executive board of the firm, there's a notable improvement. The third study, concerning cash holdings, reveals that SFO-owned firms maintain a higher cash holding ratio compared to family-owned firms. Notably, this effect is magnified when the SFO has divested its initial family firms. Lastly, the fourth study regarding capital structure highlights that SFO-owned firms tend to display a higher long-term debt ratio than family-owned firms. This suggests that SFO-owned firms operate within a trade-off theory framework, like private equity-owned firms. Furthermore, this effect is stronger for SFOs that sold their original family firm. The outcomes of this research are poised to provide entrepreneurial families with a practical guide for effectively managing and leveraging SFOs as a strategic long-term instrument for succession and investment planning.
Some of the largest firms in the DACH region (Germany, Austria, Switzerland) are (partially) owned by a foundation and/or a family office, such as Aldi, Bosch, or Rolex. Despite their growing importance, prior research neglected to analyze the impact of these intermediaries on the firms they own. This dissertation closes this research gap by contributing to a deeper understanding of two increasingly used family firm succession vehicles, through four empirical quantitative studies. The first study focuses on the heterogeneity in foundation-owned firms (FOFs) by applying a descriptive analysis to a sample of 169 German FOFs. The results indicate that the family as a central stakeholder in a family foundation fosters governance that promotes performance and growth. The second study examines the firm growth of 204 FOFs compared to matched non-FOFs from the DACH region. The findings suggest that FOFs grow significantly less in terms of sales but not with regard to employees. In addition, it seems that this negative effect is stronger for the upper than for the middle or lower quantiles of the growth distribution. Study three adopts an agency perspective and investigates the acquisition behavior within the group of 164 FOFs. The results reveal that firms with charitable foundations as owners are more likely to undertake acquisitions and acquire targets that are geographically and culturally more distant than firms with a family foundation as owner. At the same time, they favor target companies from the same or related industries. Finally, the fourth study scrutinizes the capital structure of firms owned by single family-offices (SFOs). Drawing on a hand-collected sample of 173 SFO-owned firms in the DACH region, the results show that SFO-owned firms display a higher long-term debt ratio than family-owned firms, indicating that SFO-owned firms follow trade-off theory, similar to private equity-owned firms. Additional analyses show that this effect is stronger for SFOs that sold their original family firm. In conclusion, the outcomes of this dissertation furnish valuable research contributions and offer practical insights for families navigating such intermediaries or succession vehicles in the long term.
Diese Dissertation beschäftigt sich mit der Fragestellung, ob und wie Intersektionalität als analytische Perspektive für literarische Texte eine nützliche Ergänzung für ethnisch geordnete Literaturfelder darstellt. Diese Fragestellung wird anhand der Analyse dreier zeitgenössischer chinesisch-kanadischer Romane untersucht.
In der Einleitung wird die Relevanz der Themenbereiche Intersektionalität und asiatisch-kanadische Literatur erörtert. Das darauffolgende Kapitel bietet einen historischen Überblick über die chinesisch-kanadische Einwanderung und geht detailliert auf die literarischen Produktionen ein. Es wird aufgezeigt, dass, obwohl kulturelle Güter auch zur Artikulation von Ungleichheitsverhältnissen aufgrund von zugeschriebener ethnischer Zugehörigkeit entstehen, ein Diversifizierungsbestreben innerhalb der literarischen Gemeinschaft von chinesisch-kanadischen Autor:innen identifiziert werden kann. Das dritte Kapitel widmet sich dem Begriff „Intersektionalität“ und stellt, nach einer historischen Einordnung des Konzeptes mit seinen Ursprüngen im Black Feminism, Intersektionalität als bindendes Element zwischen Postkolonialismus, Diversität und Empowerment dar – Konzepte, die für die Analyse (kanadischer) Literatur in dieser Dissertation von besonderer Relevanz sind. Anschließend wird die Rolle von Intersektionalität in der Literaturwissenschaft aufgegriffen. Die darauffolgenden exemplarischen Analysen von Kim Fus For Today I Am a Boy, Wayson Choys The Jade Peony und Yan Lis Lily in the Snow veranschaulichen die vorangegangen methodischen Überlegungen. Allen drei Romanen vorangestellt ist die Kontextualisierung des jeweiligen Werkes als chinesisch-kanadisch, aber auch bisher vorgenommene Überlegungen, die diese Einordnung infrage stellen. Nach einer Zusammenfassung des Inhalts folgt eine intersektionale Analyse auf der inhaltlichen Ebene, die in den familiären und weiteren sozialen Bereich unterteilt ist, da sich die Hierarchiemechanismen innerhalb dieser Bereiche unterscheiden oder gegenseitig verstärken, wie aus den Analysen hervorgeht. Anschließend wird die formale Analyse mit einem intersektionalen Schwerpunkt in einem separaten Unterkapitel näher beleuchtet. Ein drittes Unterkapitel widmet sich einem dem jeweiligen Roman spezifischen Aspekt, der im Zusammenhang mit einer intersektionalen Analyse von besonderer Relevanz ist. Die Arbeit schließt mit einem übergreifenden Fazit, welches die wichtigsten Ergebnisse aus der Analyse zusammenfasst und mit weiteren Überlegungen zu den Implikationen dieser Dissertation, vor allem im Hinblick auf sogenannte kanadische „master narratives“, die eine weitreichende, kontextuelle Relevanz für das Arbeiten mit literarischen Texten aufweisen und durch einen intersektionalen literarischen Ansatz in Zukunft gegebenenfalls gewinnbringend ergänzt werden können.
In recent years, the establishment of new makerspaces in Germany has increased significantly. The underlying phenomenon of the Maker Movement is a cultural and technological movement focused on making physical and digital products using open source principles, collaborative production, and individual empowerment. Because of its potential to democratize the innovation and production process, empower individuals and communities, and enable innovators to solve problems at the local level, the Maker Movement has received considerable attention in recent years. Despite numerous indicators, little is known about the phenomenon and its individual members, especially in Germany. Initial research suggests that the Maker Movement holds great potential for innovation and entrepreneurship. However, there is still a gap in understanding how Makers discover, evaluate and exploit entrepreneurial opportunities. Moreover, there is still controversy - both among policy makers and within the maker community itself - about the impact the maker movement has and can have on innovation and entrepreneurship in the future. This dissertation uses a mixed-methods approach to explore these questions. In addition to a quantitative analysis of maker characteristics, the results show that social impact, market size, and property rights have significant effects on the evaluation of entrepreneurial opportunities. The findings within this dissertation expand research in the field of the Maker Movement and offer multiple implications for practice. This dissertation provides the first quantitative data on makers in makerspaces in Germany, their characteristics and motivations. In particular, the relationship between the Maker Movement and entrepreneurship is explored in depth for the first time. This is complemented by the presentation of different identity profiles of the individuals involved. In this way, policy-makers can develop a better understanding of the movement, its personalities and values, and consider them in initiatives and formats.
This thesis deals with REITs, their capital structure and the effects on leverage that regulatory requirements might have. The data used results from a combination of Thomson Reuters data with hand-collected data regarding the REIT status, regulatory information and law variables. Overall, leverage is analysed across 20 countries in the years 2007 to 2018. Country specific data, manually extracted from yearly EPRA reportings, is merged with company data in order to analyse the influence of different REIT restrictions on a firm's leverage.
Observing statistically significant differences in means across NON-REITs and REITs, causes motivation for further investigations. My results show that variables beyond traditional capital structure determinants impact the leverage of REITs. I find that explicit restrictions on leverage and the distribution of profits have a significant effect on leverage decisions. This supports the notion that the restrictions from EPRA reportings are mandatory. I test for various combinations of regulatory variables that show both in isolation as well as in combination significant effects on leverage.
My main result is the following: Firms that operate under regulation that specifies a maximum leverage ratio, in addition to mandatory high dividend distributions, have on average lower leverage ratios. Further the existence of sanctions has a negative effect on REITs' leverage ratios, indicating that regulation is binding. The analysis clearly shows that traditional capital structure determinants are of second order relevance. This relationship highlights the impact on leverage and financing decisions caused by regulation. These effects are supported by further analysis. Results based on an event study show that REITs have statistically lower leverage ratios compared to NON-REITs. Based on a structural break model, the following effect becomes apparent: REITs increase their leverage ratios in years prior REIT status. As a consequence, the ex ante time frame is characterised by a bunker and adaption process, followed by the transformation in the event. Using an event study and a structural break model, the analysis highlights the dominance of country-specific regulation.
Striving for sustainable development by combating climate change and creating a more social world is one of the most pressing issues of our time. Growing legal requirements and customer expectations require also Mittelstand firms to address sustainability issues such as climate change. This dissertation contributes to a better understanding of sustainability in the Mittelstand context by examining different Mittelstand actors and the three dimensions of sustainability - social, economic, and environmental sustainability - in four quantitative studies. The first two studies focus on the social relevance and economic performance of hidden champions, a niche market leading subgroup of Mittelstand firms. At the regional level, the impact of 1,645 hidden champions located in Germany on various dimensions of regional development is examined. A higher concentration of hidden champions has a positive effect on regional employment, median income, and patents. At the firm level, analyses of a panel dataset of 4,677 German manufacturing firms, including 617 hidden champions, show that the latter have a higher return on assets than other Mittelstand firms. The following two chapters deal with environmental strategies and thus contribute to the exploration of the environmental dimension of sustainability. First, the consideration of climate aspects in investment decisions is compared using survey data from 468 European venture capital and private equity investors. While private equity firms respond to external stakeholders and portfolio performance and pursue an active ownership strategy, venture capital firms are motivated by product differentiation and make impact investments. Finally, based on survey data from 443 medium-sized manufacturing firms in Germany, 54% of which are family-owned, the impact of stakeholder pressures on their decarbonization strategies is analyzed. A distinction is made between symbolic (compensation of CO₂-emissions) and substantive decarbonization strategies (reduction of CO₂-emissions). Stakeholder pressures lead to a proactive pursuit of decarbonization strategies, with internal and external stakeholders varying in their influence on symbolic and substantial decarbonization strategies, and the relationship influenced by family ownership.
The German Mittelstand is closely linked to the success of the German economy. Mittelstand firms, thereof numerous Hidden Champions, significantly contribute to Germany’s economic performance, innovation, and export strength. However, the advancing digitalization poses complex challenges for Mittelstand firms. To benefit from the manifold opportunities offered by digital technologies and to defend or even expand existing market positions, Mittelstand firms must transform themselves and their business models. This dissertation uses quantitative methods and contributes to a deeper understanding of the distinct needs and influencing factors of the digital transformation of Mittelstand firms. The results of the empirical analyses of a unique database of 525 mid-sized German manufacturing firms, comprising both firm-related information and survey data, show that organizational capabilities and characteristics significantly influence the digital transformation of Mittelstand firms. The results support the assumption that dynamic capabilities promote the digital transformation of such firms and underline the important role of ownership structure, especially regarding family influence, for the digital transformation of the business model and the pursuit of growth goals with digitalization. In addition to the digital transformation of German Mittelstand firms, this dissertation examines the economic success and regional impact of Hidden Champions and hence, contributes to a better understanding of the Hidden Champion phenomenon. Using quantitative methods, it can be empirically proven that Hidden Champions outperform other mid-sized firms in financial terms and promote regional development. Consequently, the results of this dissertation provide valuable research contributions and offer various practical implications for firm managers and owners as well as policy makers.
Every action we perform, no matter how simple or complex, has a cognitive representation. It is commonly assumed that these are organized hierarchically. Thus, the representation of a complex action consists of multiple simpler actions. The representation of a simple action, in turn, consists of stimulus, response, and effect features. These are integrated into one representation upon the execution of an action and can be retrieved if a feature is repeated. Depending on whether retrieved features match or only partially match the current action episode, this might benefit or impair the execution of a subsequent action. This pattern of costs and benefits results in binding effects that indicate the strength of common representation between features. Binding effects occur also in more complex actions: Multiple simple actions seem to form representations on a higher level through the integration and retrieval of sequentially given responses, resulting in so-called response-response binding effects. This dissertation aimed to investigate what factors determine whether simple actions form more complex representations. The first line of research (Articles 1-3) focused on dissecting the internal structure of simple actions. Specifically, I investigated whether the spatial relation of stimuli, responses, or effects, that are part of two different simple actions, influenced whether these simple actions are represented as one more complex action. The second line of research (Articles 2, 4, and 5) investigated the role of context on the formation and strength of more complex action representations. Results suggest that spatial separation of responses as well as context might affect the strength of more complex action representations. In sum, findings help to specify assumptions on the structure of complex action representations. However, it may be important to distinguish factors that influence the strength and structure of action representations from factors that terminate action representations.
This thesis comprises of four research papers on the economics of education and industrial relations, which contribute to the field of empirical economic research. All of the corresponding papers focus on analysing how much time individuals spend on specific activities. The allocation of available time resources is a decision that individuals make throughout their lifetime. In this thesis, we consider individuals at different stages of their lives - students at school, university students, and dependent employees at the workplace.
Part I includes two research studies on student's behaviour in secondary and tertiary education.
Chapter 2 explores whether students who are relatively younger or older within the school year exhibit differential time allocation. Building on previous findings showing that relatively younger students perform worse in school, the study shows that relatively younger students are aware of their poor performance in school and feel more strain as a result. Nevertheless, there are no clear differences to be found in terms of time spent on homework, while relatively younger students spend more time watching television and less time on sports activities. Thus, the results suggest that the lower learning outcomes are not associated with different time allocations between school-related activities and non-school-related activities.
Chapter 3 analyses how individual ability and labour market prospects affect study behaviour. The theoretical modelling predicts that both determinants increase study effort. The empirical investigation is based on cross-sectional data from the National Educational Panel Study (NEPS) and includes thousands of students in Germany. The analyses show that more gifted students exhibit lower subjective effort levels and invest less time in self-study. In contrast, very good labour market prospects lead to more effort exerted by the student, both qualitatively and quantitatively. The potential endogeneity problem is taken into account by using regional unemployment data as an instrumental variable.
Part II includes two labour economic studies on determinants of overtime. Both studies belong to the field of industrial relations, as they focus on union membership on the one hand and the interplay of works councils and collective bargaining coverage on the other.
Chapter 4 shows that union members work less overtime than non-members do. The econometric approach takes the problem of unobserved heterogeneity into account; but provides no evidence that this issue affects the results. Different channels that could lead to this relationship are analysed by examining relevant subgroups separately. For example, this effect of union membership can also be observed in establishments with works councils and for workers who are very likely to be covered by collective bargaining agreements. The study concludes that the observed effect is due to the fact that union membership can protect workers from corresponding increased working time demands by employers.
Chapter 5 builds on previous studies showing a negative effect of works councils on overtime. In addition to co-determination by works councils at the firm level, collective bargaining coverage is an important factor in the German industrial relations system. Corresponding data was not available in the SOEP for quite some time. Therefore, the study uses recent SOEP data, which also contains information on collective bargaining coverage. A cross-sectional analysis is conducted to examine the effects of works councils in establishments with and without collective bargaining coverage. Similar to studies analysing other outcome variables, the results show that the effect of works councils exists only for employees covered by a collective bargaining agreement.
Computer simulation has become established in a two-fold way: As a tool for planning, analyzing, and optimizing complex systems but also as a method for the scientific instigation of theories and thus for the generation of knowledge. Generated results often serve as a basis for investment decisions, e.g., road construction and factory planning, or provide evidence for scientific theory-building processes. To ensure the generation of credible and reproducible results, it is indispensable to conduct systematic and methodologically sound simulation studies. A variety of procedure models exist that structure and predetermine the process of a study. As a result, experimenters are often required to repetitively but thoroughly carry out a large number of experiments. Moreover, the process is not sufficiently specified and many important design decisions still have to be made by the experimenter, which might result in an unintentional bias of the results.
To facilitate the conducting of simulation studies and to improve both replicability and reproducibility of the generated results, this thesis proposes a procedure model for carrying out Hypothesis-Driven Simulation Studies, an approach that assists the experimenter during the design, execution, and analysis of simulation experiments. In contrast to existing approaches, a formally specified hypothesis becomes the key element of the study so that each step of the study can be adapted and executed to directly contribute to the verification of the hypothesis. To this end, the FITS language is presented, which enables the specification of hypotheses as assumptions regarding the influence specific input values have on the observable behavior of the model. The proposed procedure model systematically designs relevant simulation experiments, runs, and iterations that must be executed to provide evidence for the verification of the hypothesis. Generated outputs are then aggregated for each defined performance measure to allow for the application of statistical hypothesis testing approaches. Hence, the proposed assistance only requires the experimenter to provide an executable simulation model and a corresponding hypothesis to conduct a sound simulation study. With respect to the implementation of the proposed assistance system, this thesis presents an abstract architecture and provides formal specifications of all required services.
To evaluate the concept of Hypothesis-Driven Simulation Studies, two case studies are presented from the manufacturing domain. The introduced approach is applied to a NetLogo simulation model of a four-tiered supply chain. Two scenarios as well as corresponding assumptions about the model behavior are presented to investigate conditions for the occurrence of the bullwhip effect. Starting from the formal specification of the hypothesis, each step of a Hypothesis-Driven Simulation Study is presented in detail, with specific design decisions outlined, and generated inter- mediate data as well as final results illustrated. With respect to the comparability of the results, a conventional simulation study is conducted which serves as reference data. The approach that is proposed in this thesis is beneficial for both practitioners and scientists. The presented assistance system allows for a more effortless and simplified execution of simulation experiments while the efficient generation of credible results is ensured.
The following dissertation contains three studies examining academic boredom development in five high-track German secondary schools (AVG-project data; Study 1: N = 1,432; Study 2: N = 1,861; Study 3: N = 1,428). The investigation period spanned 3.5 years, with four waves of measurement from grades 5 to 8 (T1: 5th grade, after transition to secondary school; T2: 5th grade, after mid-term evaluations; T3: 6th grade, after mid-term evaluations; T4: 8th grade, after mid-term evaluations). All three studies featured cross-sectional and longitudinal analyses, separating, and comparing the subject domains of mathematics and German.
Study 1 provided an investigation of academic boredom’s factorial structure alongside correlational and reciprocal relations of different forms of boredom and academic self-concept. Analyses included reciprocal effects models and latent correlation analyses. Results indicated separability of boredom intensity, boredom due to underchallenge and boredom due to overchallenge, as separate, correlated factors. Evidence for reciprocal relations between boredom and academic self-concept was limited.
Study 2 examined the effectiveness and efficacy of full-time ability grouping for as a boredom intervention directed at the intellectually gifted. Analyses included propensity score matching, and latent growth curve modelling. Results pointed to limited effectiveness and efficacy for full-time ability grouping regarding boredom reduction.
Study 3 explored gender differences in academic boredom development, mediated by academic interest, academic self-concept, and previous academic achievement. Analyses included measurement invariance testing, and multiple-indicator-multi-cause-models. Results showed one-sided gender differences, with boys reporting less favorable boredom development compared to girls, even beyond the inclusion of relevant mediators.
Findings from all three studies were embedded into the theoretical framework of control-value theory (Pekrun, 2006; 2019; Pekrun et al., 2023). Limitations, directions for future research, and practical implications were acknowledged and discussed.
Overall, this dissertation yielded important insights into boredom’s conceptual complexity. This concerned factorial structure, developmental trajectories, interrelations to other learning variables, individual differences, and domain specificities.
Keywords: Academic boredom, boredom intensity, boredom due to underchallenge, boredom due to overchallenge, ability grouping, gender differences, longitudinal data analysis, control-value theory
Startups are essential agents for the evolution of economies and the creative destruction of established market conditions for the benefit of a more effective and efficient economy. Their significance is manifested in their drive for innovation and technological advancements, their creation of new jobs, their contribution to economic growth, and their impact on increased competition and increased market efficiency. By reason of their attributes of newness and smallness, startups often experience a limitation in accessing external financial resources. Extant research on entrepreneurial finance examines the capital structure of startups, various funding tools, financing environments in certain regions, and investor selection criteria among other topics. My dissertation contributes to this research area by examining the becoming increasingly important funding instrument of venture debt. Prior research on venture debt only investigated the business model of venture debt, the concept of venture debt, the selection criteria of venture debt providers, and the role of patents in the venture debt provider’s selection process. Based on qualitative and quantitative methods, the dissertation outlines the emergence of venture debt in Europe as well as the impact of venture debt on startups to open up a better understanding of venture debt.
The results of the qualitative studies indicate that venture debt was formed based on a ‘Kirznerian’ entrepreneurial opportunity and venture debt impacts startups positive and negative in their development via different impact mechanisms.
Based on these results, the dissertation analyzes the empirical impact of venture debt on a startup’s ability to acquire additional financial resources as well as the role of the reputation of venture debt providers. The results suggest that venture debt increases the likelihood of acquiring additional financial resources via subsequent funding rounds and trade sales. In addition, a higher venture debt provider reputation increases the likelihood of acquiring additional financial resources via IPOs.
This cumulative thesis encompass three studies focusing on the Weddell Sea region in the Antarctic. The first study produces and evaluates a high quality data set of wind measurements for this region. The second study produces and evaluates a 15 year regional climate simulation for the Weddell Sea region. And the third study produces and evaluates a climatology of low level jets (LLJs) from the simulation data set. The evaluations were done in the attached three publications and the produced data sets are published online.
In 2015/2016, the RV Polarstern undertook an Antarctic expedition in the Weddell Sea. We operated a Doppler wind lidar on board during that time running different scan patterns. The resulting data was evaluated, corrected, processed and we derived horizontal wind speed and directions for vertical profiles with up to 2 km height. The measurements cover 38 days with a temporal resolution of 10-15 minutes. A comparisons with other radio sounding data showed only minor differences.
The resulting data set was used alongside other measurements to evaluate temperature and wind of simulation data. The simulation data was produced with the regional climate model CCLM for the period of 2002 to 2016 for the Weddell Sea region. Only smaller biases were found except for a strong warm bias during winter near the surface of the Antarctic Plateau. Thus we adapted the model setup and were able to remove the bias in a second simulation.
This new simulation data was then used to derive a climatology of low level jets (LLJs). Statistics of occurrence frequency, height and wind speed of LLJs for the Weddell Sea region are presented along other parameters. Another evaluation with measurements was also performed in the last study.
Do Personality Traits, Trust and Fairness Shape the Stock-Investing Decisions of an Individual?
(2023)
This thesis is comprised of three projects, all of which are fundamentally connected to the choices that individuals make about stock investments. Differences in stock market participation (SMP) across countries are large and difficult to explain. The second chapter focuses on differences between Germany (low SMP) and East Asian countries (mostly high SMP). The study hypothesis is that cultural differences regarding social preferences and attitudes towards inequality lead to different attitudes towards stock markets and subsequently to different SMPs. Using a large-scale survey, it is found that these factors can, indeed, explain a substantial amount of the country differences that other known factors (financial literacy, risk preferences, etc.) could not. This suggests that social preferences should be given a more central role in programs that aim to enhance SMP in countries like Germany. The third chapter documented the importance of trust as well as herding for stock ownership decisions. The findings show that trust as a general concept has no significant contribution to stock investment intention. A thorough examination of general trust elements reveals that in group and out-group trust have an impact on individual stock market investment. Higher out group trust directly influences a person's decision to invest in stocks, whereas higher in-group trust increases herding attitudes in stock investment decisions and thus can potentially increase the likelihood of stock investments as well. The last chapter investigates the significance of personality traits in stock investing and home bias in portfolio selection. Findings show that personality traits do indeed have a significant impact on stock investment and portfolio allocation decisions. Despite the fact that the magnitude and significance of characteristics differ between two groups of investors, inexperienced and experienced, conscientiousness and neuroticism play an important role in stock investments and preferences. Moreover, high conscientiousness scores increase stock investment desire and portfolio allocation to risky assets like stocks, discouraging home bias in asset allocation. Regarding neuroticism, a higher-level increases home bias in portfolio selection and decreases willingness to stock investment and portfolio share. Finally, when an investor has no prior experience with portfolio selection, patriotism generates home bias. For experienced investors, having a low neuroticism score and a high conscientiousness and openness score seemed to be a constant factor in deciding to invest in a well-diversified international portfolio
Even though proper research on Cauchy transforms has been done, there are still a lot of open questions. For example, in the case of representation theorems, i.e. the question when a function can be represented as a Cauchy transform, there is 'still no completely satisfactory answer' ([9], p. 84). There are characterizations for measures on the circle as presented in the monograph [7] and for general compactly supported measures on the complex plane as presented in [27]. However, there seems to exist no systematic treatise of the Cauchy transform as an operator on $L_p$ spaces and weighted $L_p$ spaces on the real axis.
This is the point where this thesis draws on and we are interested in developing several characterizations for the representability of a function by Cauchy transforms of $L_p$ functions. Moreover, we will attack the issue of integrability of Cauchy transforms of functions and measures, a topic which is only partly explored (see [43]). We will develop different approaches involving Fourier transforms and potential theory and investigate into sufficient conditions and characterizations.
For our purposes, we shall need some notation and the concept of Hardy spaces which will be part of the preliminary Chapter 1. Moreover, we introduce Fourier transforms and their complex analogue, namely Fourier-Laplace transforms. This will be of extraordinary usage due to the close connection of Cauchy and Fourier(-Laplace) transforms.
In the second chapter we shall begin our research with a discussion of the Cauchy transformation on the classical (unweighted) $L_p$ spaces. Therefore, we start with the boundary behavior of Cauchy transforms including an adapted version of the Sokhotski-Plemelj formula. This result will turn out helpful for the determination of the image of the Cauchy transformation under $L_p(\R)$ for $p\in(1,\infty).$ The cases $p=1$ and $p=\infty$ are playing special roles here which justifies a treatise in separate sections. For $p=1$ we will involve the real Hardy space $H_{1}(\R)$ whereas the case $p=\infty$ shall be attacked by an approach incorporating intersections of Hardy spaces and certain subspaces of $L_{\infty}(\R).$
The third chapter prepares ourselves for the study of the Cauchy transformation on subspaces of $L_{p}(\R).$ We shall give a short overview of the basic facts about Cauchy transforms of measures and then proceed to Cauchy transforms of functions with support in a closed set $X\subset\R.$ Our goal is to build up the main theory on which we can fall back in the subsequent chapters.
The fourth chapter deals with Cauchy transforms of functions and measures supported by an unbounded interval which is not the entire real axis. For convenience we restrict ourselves to the interval $[0,\infty).$ Bringing once again the Fourier-Laplace transform into play, we deduce complex characterizations for the Cauchy transforms of functions in $L_{2}(0,\infty).$ Moreover, we analyze the behavior of Cauchy transform on several half-planes and shall use these results for a fairly general geometric characterization. In the second section of this chapter, we focus on Cauchy transforms of measures with support in $[0,\infty).$ In this context, we shall derive a reconstruction formula for these Cauchy transforms holding under pretty general conditions as well as results on the behaviur on the left half-plane. We close this chapter by rather technical real-type conditions and characterizations for Cauchy transforms of functions in $L_p(0,\infty)$ basing on an approach in [82].
The most common case of Cauchy transforms, those of compactly supported functions or measures, is the subject of Chapter 5. After complex and geometric characterizations originating from similar ideas as in the fourth chapter, we adapt a functional-analytic approach in [27] to special measures, namely those with densities to a given complex measure $\mu.$ The chapter is closed with a study of the Cauchy transformation on weighted $L_p$ spaces. Here, we choose an ansatz through the finite Hilbert transform on $(-1,1).$
The sixth chapter is devoted to the issue of integrability of Cauchy transforms. Since this topic has no comprehensive treatise in literature yet, we start with an introduction of weighted Bergman spaces and general results on the interaction of the Cauchy transformation in these spaces. Afterwards, we combine the theory of Zen spaces with Cauchy transforms by using once again their connection with Fourier transforms. Here, we shall encounter general Paley-Wiener theorems of the recent past. Lastly, we attack the issue of integrability of Cauchy transforms by means of potential theory. Therefore, we derive a Fourier integral formula for the logarithmic energy in one and multiple dimensions and give applications to Fourier and hence Cauchy transforms.
Two appendices are annexed to this thesis. The first one covers important definitions and results from measure theory with a special focus on complex measures. The second appendix contains Cauchy transforms of frequently used measures and functions with detailed calculations.
Die Dissertation beschäftigt sich mit einer neuartigen Art von Branch-and-Bound Algorithmen, deren Unterschied zu klassischen Branch-and-Bound Algorithmen darin besteht, dass
das Branching durch die Addition von nicht-negativen Straftermen zur Zielfunktion erfolgt
anstatt durch das Hinzufügen weiterer Nebenbedingungen. Die Arbeit zeigt die theoretische Korrektheit des Algorithmusprinzips für verschiedene allgemeine Klassen von Problemen und evaluiert die Methode für verschiedene konkrete Problemklassen. Für diese Problemklassen, genauer Monotone und Nicht-Monotone Gemischtganzzahlige Lineare Komplementaritätsprobleme und Gemischtganzzahlige Lineare Probleme, präsentiert die Arbeit
verschiedene problemspezifische Verbesserungsmöglichkeiten und evaluiert diese numerisch.
Weiterhin vergleicht die Arbeit die neue Methode mit verschiedenen Benchmark-Methoden
mit größtenteils guten Ergebnissen und gibt einen Ausblick auf weitere Anwendungsgebiete
und zu beantwortende Forschungsfragen.
Allocating scarce resources efficiently is a major task in mechanism design. One of the most fundamental problems in mechanism design theory is the problem of selling a single indivisible item to bidders with private valuations for the item. In this setting, the classic Vickrey auction of~\citet{vickrey1961} describes a simple mechanism to implement a social welfare maximizing allocation.
The Vickrey auction for a single item asks every buyer to report its valuation and allocates the item to the highest bidder for a price of the second highest bid. This auction features some desirable properties, e.g., buyers cannot benefit from misreporting their true value for the item (incentive compatibility) and the auction can be executed in polynomial time.
However, when there is more than one item for sale and buyers' valuations for sets of items are not additive or the set of feasible allocations is constrained, then constructing mechanisms that implement efficient allocations and have polynomial runtime might be very challenging. Consider a single seller selling $n\in \N$ heterogeneous indivisible items to several bidders. The Vickrey-Clarke-Groves auction generalizes the idea of the Vickrey auction to this multi-item setting. Naturally, every bidder has an intrinsic value for every subset of items. As in in the Vickrey auction, bidders report their valuations (Now, for every subset of items!). Then, the auctioneer computes a social welfare maximizing allocation according to the submitted bids and charges buyers the social cost of their winning that is incurred by the rest of the buyers. (This is the analogue to charging the second highest bid to the winning bidder in the single item Vickrey auction.) It turns out that the Vickrey-Clarke-Groves auction is also incentive compatible but it poses some problems: In fact, say for $n=40$, bidders would have to submit $2^{40}-1$ values (one value for each nonempty subset of the ground set) in total. Thus, asking every bidder for its valuation might be impossible due to time complexity issues. Therefore, even though the Vickrey-Clarke-Groves auction implements a social welfare maximizing allocation in this multi-item setting it might be impractical and there is need for alternative approaches to implement social welfare maximizing allocations.
This dissertation represents the results of three independent research papers all of them tackling the problem of implementing efficient allocations in different combinatorial settings.
Formulations of macrocyclic lactone anthelmintics such as moxidectin are regularly administered to sheep to combat parasites. A disadvantage of these pharmaceuticals are their side effects on non-target organisms when entering the environment. Little is known about anthelmintic effects on plant reproduction and whether the effects depend on environmental factors. For ecological and methodological reasons, we aimed at testing whether temperature affects the efficacy of a common moxidectin-based formulation on seed germination. We carried out a germination experiment including three typical species of temperate European grasslands (Centaurea jacea, Galium mollugo, Plantago lanceolata). We applied three temperature regimes (15/5, 20/10, 30/20°C), and a four-level dilution series (1:100–1:800) of formulated moxidectin (i.e., Cydectin oral drench). These solutions represent seed-anthelmintic contacts in the digestive tract of sheep shortly after deworming. In addition, a control was carried out with purified water only. We regularly counted emerging seedlings and calculated final germination percentage, mean germination time and synchrony of germination. Formulated moxidectin significantly reduced percentage, speed and synchrony of germination. A 1:100 dilution of the formulation reduced germination percentage by a quarter and increased mean germination time by six days compared to the control. Temperature moderated effects of the anthelmintic drug on germination in all response variables and all species, but in different patterns and magnitudes (significant anthelmintic x temperature x species interactions). In all response variables, the two more extreme temperature regimes (15/5, 30/20°C) led to the strongest effects of formulated moxidectin. With respect to germination percentage, G. mollugo was more sensitive to formulated moxidectin at the warmest temperature regime, whereas P. lanceolata showed the highest sensitivity at the coldest regime. This study shows that it is important to consider temperature dependencies of the effects of pharmaceuticals on seed germination when conducting standardised germination experiments.
The argan woodlands of South Morocco represent an open-canopy dryland forest with traditional silvopastoral usage that includes browsing by goats, sheep and camels, oil production as well as agricultural use. In the past, these forests have undergone extensive clearing, but are now protected by the state. However, the remaining argan woodlands are still under pressure from intensive grazing and illegal firewood collection. Although the argan-forest area seems to be overall decreasing due to large forest clearings for intensive agriculture, little quantitative data is available on the dynamics and overall state of the remaining argan forest. To determine how the argan woodlands in the High Atlas and the Anti-Atlas had changed in tree-crown cover from 1972 to 2018 we used historical black and white HEXAGON satellite images as well as recent WorldView satellite images (see Part A of our study). Because tree shadows can oftentimes not be separated from the tree crown on panchromatic satellite images, individual trees were mapped in three size categories to determine if trees were unchanged, had decreased/increased in crown size or had disappeared or newly grown. The current state of the argan trees was evaluated by mapping tree architectures in the field. Tree-cover changes varied highly between the test sites. Trees that remained unchanged between 1972 and 2018 were in the majority, while tree mortality and tree establishment were nearly even. Small unchanged trees made up 48.4% of all remaining trees, of these 51% showed degraded tree architectures. 40% of small (re-) grown trees were so overbrowsed that they only appeared as bushes, while medium (3–7 m crown diameter) and large trees (>7 m) showed less degraded trees regardless if they had changed or not. Approaches like grazing exclusion or cereal cultivation lead to a positive influence on tree architecture and less tree-cover decrease. Although the woodland was found to be mostly unchanged 1972–2018, the analysis of tree architecture reveals that a lot of (mostly small) trees remained stable but in a degraded state. This stability might be the result of the small trees’ high degradation status and shows the heavy pressure on the argan forest.
With the start of the Coronavirus (COVID-19) pandemic, the global education system has a faced immense challenges and disruptions resulting in and the necessity for an immediate redesign of teaching and learning in the school context. Face-to-face classroom instruction had to be replaced by ‘emergency remote teaching’, requiring teacher to adapt their daily routines to a new and unprecedented educational reality. Researchers and policymakers worldwide have agreed that, despite the fact that efforts were made to immediately adapt to emergency remote teaching, disadvantaged and vulnerable students may be especially at risk in emergency remote teaching. Given the differences in schooling organization across countries during the COVID-19 pandemic it can be expected that teachers performed inclusive instructional practices significantly different. Against the unpredictable situation, cross-country research has been urgently required to provide data that could inform education policy. Thus, this study explored teachers’ perceptions of supporting at risk students during the first COVID-19 school closures, as well as examining teachers’ inclusive teaching practices in three countries: Germany, Austria and Portugal. ANOVA results revealed important country differences. In general, it appears that teachers in Germany and Austria reported to have implemented less practices to address vulnerable and at-risk students compared to Portuguese teachers. Implications of the results, as well as further lines of research are outlined.
Objective: Attunement is a novel measure of nonverbal synchrony reflecting the duration of the present moment shared by two interaction partners. This study examined its association with early change in outpatient psychotherapy.
Methods: Automated video analysis based on motion energy analysis (MEA) and cross-correlation of the movement time-series of patient and therapist was conducted to calculate movement synchrony for N = 161 outpatients. Movement-based attunement was defined as the range of connected time lags with significant synchrony. Latent change classes in the HSCL-11 were identified with growth mixture modeling (GMM) and predicted by pre-treatment covariates and attunement using multilevel multinomial regression.
Results: GMM identified four latent classes: high impairment, no change (Class 1); high impairment, early response (Class 2); moderate impairment (Class 3); and low impairment (Class 4). Class 2 showed the strongest attunement, the largest early response, and the best outcome. Stronger attunement was associated with a higher likelihood of membership in Class 2 (b = 0.313, p = .007), Class 3 (b = 0.251, p = .033), and Class 4 (b = 0.275, p = .043) compared to Class 1. For highly impaired patients, the probability of no early change (Class 1) decreased and the probability of early response (Class 2) increased as a function of attunement.
Conclusions: Among patients with high impairment, stronger patient-therapist attunement was associated with early response, which predicted a better treatment outcome. Video-based assessment of attunement might provide new information for therapists not available from self-report questionnaires and support therapists in their clinical decision-making.
Background: Hyperhidrosis (excessive sweating, OMIM %114110) is a complex disorder with multifactorial causes. Emotional strains and social stress increase symptoms and lead to a vicious circle. Previously, we showed significantly higher depression scores, and normal cortisol awakening responses in patients with primary focal hyperhidrosis (PFH). Stress reactivity in response to a (virtual) Trier Social Stress Test (TSST-VR) has not been studied so far. Therefore, we measured sweat secretion, salivary cortisol and alpha amylase (sAA) concentrations, and subjective stress ratings in affected and non-affected subjects in response to a TSST-VR.
Method: In this pilot study, we conducted TSST-VRs and performed general linear models with repeated measurements for salivary cortisol and sAA levels, heart rate, axillary sweat and subjective stress ratings for two groups (diagnosed PFH (n = 11), healthy controls (n = 16)).
Results: PFH patients showed significantly heightened sweat secretion over time compared to controls (p = 0.006), with highest quantities during the TSST-VR. In both groups, sweating (p < 0.001), maximum cortisol levels (p = 0.002), feelings of stress (p < 0.001), and heart rate (p < 0.001) but not sAA (p = 0.068) increased significantly in response to the TSST-VR. However, no differences were detected in subjective ratings, cortisol concentrations and heart rate between PFH patients and controls (pall > 0.131).
Conclusion: Patients with diagnosed PFH showed stress-induced higher sweat secretion compared to healthy controls but did not differ in the stress reactivity with regard to endocrine or subjective markers. This pilot study is in need of replication to elucidate the role of the sympathetic nervous system as a potential pathway involved in the stress-induced emotional sweating of PFH patients.
Influence of Ozone and Drought on Tree Growth under Field Conditions in a 22 Year Time Series
(2022)
Studying the effect of surface ozone (O3) and water stress on tree growth is important for planning sustainable forest management and forest ecology. In the present study, a 22-year long time series (1998–2019) on basal area increment (BAI) and fructification severity of European beech (Fagus sylvatica L.) and Norway spruce (Picea abies (L.) H.Karst.) at five forest sites in Western Germany (Rhineland Palatinate) was investigated to evaluate how it correlates with drought and stomatal O3 fluxes (PODY) with an hourly threshold of uptake (Y) to represent the detoxification capacity of trees (POD1, with Y = 1 nmol O3 m−2 s−1). Between 1998 and 2019, POD1 declined over time by on average 0.31 mmol m−2 year−1. The BAI showed no significant trend at all sites, except in Leisel where a slight decline was observed over time (−0.37 cm2 per year, p < 0.05). A random forest analysis showed that the soil water content and daytime O3 mean concentration were the best predictors of BAI at all sites. The highest mean score of fructification was observed during the dry years, while low level or no fructification was observed in most humid years. Combined effects of drought and O3 pollution mostly influence tree growth decline for European beech and Norway spruce.
Reconstructing invisible deviating events: A conformance checking approach for recurring events
(2022)
Conformance checking enables organizations to determine whether their executed processes are compliant with the intended process. However, if the processes contain recurring activities, state-of-the-art approaches unfortunately have difficulties calculating the conformance. The occurrence of complex temporal rules can further increase the complexity of the problem. Identifying this limitation, this paper presents a novel approach towards dealing with recurring activities in conformance checking. The core idea of the approach is to reconstruct the missing events in the event log using defined rules while incorporating specified temporal event characteristics. This approach then enables the use of native conformance checking algorithms. The paper illustrates the algorithmic approach and defines the required temporal event characteristics. Furthermore, the approach is applied and evaluated in a case study on an event log for melanoma surveillance.
List-method directed forgetting (LMDF) is the demonstration that people can intentionally forget previously studied information when they are asked to forget what they have previously learned and remember new information instead. In addition, recent research demonstrated that people can selectively forget when cued to forget only a subset of the previously studied information. Both forms of forgetting are typically observed in recall tests, in which the to-be-forgotten and to-be-remembered information is tested independent of original cuing. Thereby, both LMDF and selective directed forgetting (SDF) have been studied mostly with unrelated item materials (e.g., word lists). The present study examined whether LMDF and SDF generalize to prose material. Participants learned three prose passages, which they were cued to remember or forget after the study of each passage. At the time of testing, participants were asked to recall the three prose passages regardless of original cuing. The results showed no significant differences in recall of the three lists as a function of cuing condition. The findings suggest that LMDF and SDF do not occur with prose material. Future research is needed to replicate and extend these findings with (other) complex and meaningful materials before drawing firm conclusions. If the null effect proves to be robust, this would have implications regarding the ecological validity and generalizability of current LMDF and SDF findings.
The global spread of the coronavirus pandemic has particularly dramatic consequences for the lives of migrants and refugees living in already marginalised and restricted conditions, whose ongoing crisis is at risk of being overlooked. But refugees are not only extremely vulnerable and at risk of infection, as several reports show, quickly develop their own protection measures like the production of hygienic products, the publication of their situation and calls for action and help. Therefore, this paper aims to research the effects of the coronavirus crisis on refugees in camp settings with a special ethnographic focus on how refugees actively deal with this crisis and if they, through already developed resilience, are capable of adapting to the restrictions as well as inventing strategies to cope with the difficult situation. To account for the variety of refugee camps as well as the different living conditions due to their locality, history and national asylum politics, we will look at three different locations, namely refugee asylum homes in Germany, hotspots on the Greek islands as well as one refugee camp in Kenya. The main questions will be how, under structurally and institutionally framed conditions of power and victimisation in refugee camps, forms of agency are established, made possible or limited. The goal is to show which strategies refugees apply to cope with the enhanced restrictions and exclusion, how they act to protect themselves and others from the virus and how they present and reflect their situation during the coronavirus pandemic. Finally, this discussion offers a new perspective to consider refugees not only as vulnerable victims, but also as actively engaged individuals.
Measurements of the atmospheric boundary layer (ABL) structure were performed for three years (October 2017–August 2020) at the Russian observatory “Ice Base Cape Baranova” (79.280° N, 101.620° E) using SODAR (Sound Detection And Ranging). These measurements were part of the YOPP (Year of Polar Prediction) project “Boundary layer measurements in the high Arctic” (CATS_BL) within the scope of a joint German–Russian project. In addition to SODAR-derived vertical profiles of wind speed and direction, a suite of complementary measurements at the observatory was available. ABL measurements were used for verification of the regional climate model COSMO-CLM (CCLM) with a 5 km resolution for 2017–2020. The CCLM was run with nesting in ERA5 data in a forecast mode for the measurement period. SODAR measurements were mostly limited to wind speeds <12 m/s since the signal was often lost for higher winds. The SODAR data showed a topographical channeling effect for the wind field in the lowest 100 m and some low-level jets (LLJs). The verification of the CCLM with near-surface data of the observatory showed good agreement for the wind and a negative bias for the 2 m temperature. The comparison with SODAR data showed a positive bias for the wind speed of about 1 m/s below 100 m, which increased to 1.5 m/s for higher levels. In contrast to the SODAR data, the CCLM data showed the frequent presence of LLJs associated with the topographic channeling in Shokalsky Strait. Although SODAR wind profiles are limited in range and have a lot of gaps, they represent a valuable data set for model verification. However, a full picture of the ABL structure and the climatology of channeling events could be obtained only with the model data. The climatological evaluation showed that the wind field at Cape Baranova was not only influenced by direct topographic channeling under conditions of southerly winds through the Shokalsky Strait but also by channeling through a mountain gap for westerly winds. LLJs were detected in 37% of all profiles and most LLJs were associated with channeling, particularly LLJs with a jet speed ≥ 15 m/s (which were 29% of all LLJs). The analysis of the simulated 10 m wind field showed that the 99%-tile of the wind speed reached 18 m/s and clearly showed a dipole structure of channeled wind at both exits of Shokalsky Strait. The climatology of channeling events showed that this dipole structure was caused by the frequent occurrence of channeling at both exits. Channeling events lasting at least 12 h occurred on about 62 days per year at both exits of Shokalsky Strait.
The unrestrainable evolution of medical science and technology is drastically changing health-care, enabling new medical procedures and remedies, which are increasingly intertwined with moral principles. Although a uniform European approach on assisted suicide is lacking, a common trend is developing: the boundary between euthanasia, assisted suicide and end-of-life care and the frontiers of legitimate medicine are becoming increasingly blurred. In Italy, a ruling of the Constitutional Court, no. 242/2019, declared the partial unconstitutionality of article 580 of the Italian Criminal Code, which prohibited assistance in suicide.
Specifically, article 580 excluded the criminal liability for the person who, in the manner provided for in Articles 1 and 2 of the law 22 December 2017, no. 219, “facilitates the execution of intention of suicide, autonomously and freely formed, of one person kept alive by life-sustaining treatments and suffering from an irreversible pathology, source of physical or psychological suffering that he/she deems intolerable, but fully capable of making free aware decisions, provided that such conditions and methods of execution have been verified by a public structure of the national health service, following the opinion of the territorially competent ethics committee.” The present paper analyzes the legal regime of assisted suicide in Italy, the role of the rule of law, and the crucial boundary between the branches of government with regard to this delicate issue, and investigates current legal challenges and potential future legal tracks.
Energy transport networks are one of the most important infrastructures for the planned energy transition. They form the interface between energy producers and consumers and their features make them good candidates for the tools that mathematical optimization can offer. Nevertheless, the operation of energy networks comes with two major challenges. First, the nonconvexity of the equations that model the physics in the network render the resulting problems extremely hard to solve for large-scale networks. Second, the uncertainty associated to the behavior of the different agents involved, the production of energy, and the consumption of energy make the resulting problems hard to solve if a representative description of uncertainty is to be considered.
In this cumulative dissertation we study adaptive refinement algorithms designed to cope with the nonconvexity and stochasticity of equations arising in energy networks. Adaptive refinement algorithms approximate the original problem by sequentially refining the model of a simpler optimization problem. More specifically, in this thesis, the focus of the adaptive algorithm is on adapting the discretization and description of a set of constraints.
In the first part of this thesis, we propose a generalization of the different adaptive refinement ideas that we study. We sequentially describe model catalogs, error measures, marking strategies, and switching strategies that are used to set up the adaptive refinement algorithm. Afterward, the effect of the adaptive refinement algorithm on two energy network applications is studied. The first application treats the stationary operation of district heating networks. Here, the strength of adaptive refinement algorithms for approximating the ordinary differential equation that describes the transport of energy is highlighted. We introduce the resulting nonlinear problem, consider network expansion, and obtain realistic controls by applying the adaptive refinement algorithm. The second application concerns quantile-constrained optimization problems and highlights the ability of the adaptive refinement algorithm to cope with large scenario sets via clustering. We introduce the resulting mixed-integer linear problem, discuss generic solution techniques, make the link with the generalized framework, and measure the impact of the proposed solution techniques.
The second part of this thesis assembles the papers that inspired the contents of the first part of this thesis. Hence, they describe in detail the topics that are covered and will be referenced throughout the first part.
THE NONLOCAL NEUMANN PROBLEM
(2023)
Instead of presuming only local interaction, we assume nonlocal interactions. By doing so, mass
at a point in space does not only interact with an arbitrarily small neighborhood surrounding it,
but it can also interact with mass somewhere far, far away. Thus, mass jumping from one point to
another is also a possibility we can consider in our models. So, if we consider a region in space, this
region interacts in a local model at most with its closure. While in a nonlocal model this region may
interact with the whole space. Therefore, in the formulation of nonlocal boundary value problems
the enforcement of boundary conditions on the topological boundary may not suffice. Furthermore,
choosing the complement as nonlocal boundary may work for Dirichlet boundary conditions, but
in the case of Neumann boundary conditions this may lead to an overfitted model.
In this thesis, we introduce a nonlocal boundary and study the well-posedness of a nonlocal Neu-
mann problem. We present sufficient assumptions which guarantee the existence of a weak solution.
As in a local model our weak formulation is derived from an integration by parts formula. However,
we also study a different weak formulation where the nonlocal boundary conditions are incorporated
into the nonlocal diffusion-convection operator.
After studying the well-posedness of our nonlocal Neumann problem, we consider some applications
of this problem. For example, we take a look at a system of coupled Neumann problems and analyze
the difference between a local coupled Neumann problems and a nonlocal one. Furthermore, we let
our Neumann problem be the state equation of an optimal control problem which we then study. We
also add a time component to our Neumann problem and analyze this nonlocal parabolic evolution
equation.
As mentioned before, in a local model mass at a point in space only interacts with an arbitrarily
small neighborhood surrounding it. We analyze what happens if we consider a family of nonlocal
models where the interaction shrinks so that, in limit, mass at a point in space only interacts with
an arbitrarily small neighborhood surrounding it.
Traditional workflow management systems support process participants in fulfilling business tasks through guidance along a predefined workflow model.
Flexibility has gained a lot of attention in recent decades through a shift from mass production to customization. Various approaches to workflow flexibility exist that either require extensive knowledge acquisition and modelling effort or an active intervention during execution and re-modelling of deviating behaviour. The pursuit of flexibility by deviation is to compensate both of these disadvantages through allowing alternative unforeseen execution paths at run time without demanding the process participant to adapt the workflow model. However, the implementation of this approach has been little researched so far.
This work proposes a novel approach to flexibility by deviation. The approach aims at supporting process participants during the execution of a workflow through suggesting work items based on predefined strategies or experiential knowledge even in case of deviations. The developed concepts combine two renowned methods from the field of artificial intelligence - constraint satisfaction problem solving with process-oriented case-based reasoning. This mainly consists of a constraint-based workflow engine in combination with a case-based deviation management. The declarative representation of workflows through constraints allows for implicit flexibility and a simple possibility to restore consistency in case of deviations. Furthermore, the combined model, integrating procedural with declarative structures through a transformation function, increases the capabilities for flexibility. For an adequate handling of deviations the methodology of case-based reasoning fits perfectly, through its approach that similar problems have similar solutions. Thus, previous made experiences are transferred to currently regarded problems, under the assumption that a similar deviation has been handled successfully in the past.
Necessary foundations from the field of workflow management with a focus on flexibility are presented first.
As formal foundation, a constraint-based workflow model was developed that allows for a declarative specification of foremost sequential dependencies of tasks. Procedural and declarative models can be combined in the approach, as a transformation function was specified that converts procedural workflow models to declarative constraints.
One main component of the approach is the constraint-based workflow engine that utilizes this declarative model as input for a constraint solving algorithm. This algorithm computes the worklist, which is proposed to the process participant during workflow execution. With predefined deviation handling strategies that determine how the constraint model is modified in order to restore consistency, the support is continuous even in case of deviations.
The second major component of the proposed approach constitutes the case-based deviation management, which aims at improving the support of process participants on the basis of experiential knowledge. For the retrieve phase, a sophisticated similarity measure was developed that integrates specific characteristics of deviating workflows and combines several sequence similarity measures. Two alternative methods for the reuse phase were developed, a null adaptation and a generative adaptation. The null adaptation simply proposes tasks from the most similar workflow as work items, whereas the generative adaptation modifies the constraint-based workflow model based on the most similar workflow in order to re-enable the constraint-based workflow engine to suggest work items.
The experimental evaluation of the approach consisted of a simulation of several types of process participants in the exemplary domain of deficiency management in construction. The results showed high utility values and a promising potential for an investigation of the transfer on other domains and the applicability in practice, which is part of future work.
Concluding, the contributions are summarized and research perspectives are pointed out.
Official business surveys form the basis for national and regional business statistics and are thus of great importance for analysing the state and performance of the economy. However, both the heterogeneity of business data and their high dynamics pose a particular challenge to the feasibility of sampling and the quality of the resulting estimates. A widely used sampling frame for creating the design of an official business survey is an extract from an official business register. However, if this frame does not accurately represent the target population, frame errors arise. Amplified by the heterogeneity and dynamics of business populations, these errors can significantly affect the estimation quality and lead to inefficiencies and biases. This dissertation therefore deals with design-based methods for optimising business surveys with respect to different types of frame errors.
First, methods for adjusting the sampling design of business surveys are addressed. These approaches integrate auxiliary information about the expected structures of frame errors into the sampling design. The aim is to increase the number of sampled businesses that are subject to frame errors. The element-specific frame error probability is estimated based on auxiliary information about frame errors observed in previous samples. The approaches discussed consider different types of frame errors and can be incorporated into predefined designs with fixed strata.
As the second main pillar of this work, methods for adjusting weights to correct for frame errors during estimation are developed and investigated. As a result of frame errors, the assumptions under which the original design weights were determined based on the sampling design no longer hold. The developed methods correct the design weights taking into account the errors identified for sampled elements. Case-number-based reweighting approaches, on the one hand, attempt to reconstruct the unknown size of the individual strata in the target population. In the context of weight smoothing methods, on the other hand, design weights are modelled and smoothed as a function of target or auxiliary variables. This serves to avoid inefficiencies in the estimation due to highly scattering weights or weak correlations between weights and target variables. In addition, possibilities of correcting frame errors by calibration weighting are elaborated. Especially when the sampling frame shows over- and/or undercoverage, the inclusion of external auxiliary information can provide a significant improvement of the estimation quality. For those methods whose quality cannot be measured using standard procedures, a procedure for estimating the variance based on a rescaling bootstrap is proposed. This enables an assessment of the estimation quality when using the methods in practice.
In the context of two extensive simulation studies, the methods presented in this dissertation are evaluated and compared with each other. First, in the environment of an experimental simulation, it is assessed which approaches are particularly suitable with regard to different data situations. In a second simulation study, which is based on the structural survey in the services sector, the applicability of the methods in practice is evaluated under realistic conditions.
Wasserbezogene regulierende und versorgende Ökosystemdienstleistungen (ÖSDL) wurden im Hinblick auf das Abflussregime und die Grundwasserneubildung im Biosphärenreservat Pfälzerwald im Südwesten Deutschlands anhand hydrologischer Modellierung unter Verwendung des Soil and Water Assessment Tool (SWAT+) untersucht. Dabei wurde ein holistischer Ansatz verfolgt, wonach den ÖSDL Indikatoren für funktionale und strukturelle ökologische Prozesse zugeordnet werden. Potenzielle Risikofaktoren für die Verschlechterung von wasserbedingten ÖSDL des Waldes, wie Bodenverdichtung durch Befahren mit schweren Maschinen im Zuge von Holzerntearbeiten, Schadflächen mit Verjüngung, entweder durch waldbauliche Bewirtschaftungspraktiken oder durch Windwurf, Schädlinge und Kalamitäten im Zuge des Klimawandels, sowie der Kli-mawandel selbst als wesentlicher Stressor für Waldökosysteme wurden hinsichtlich ihrer Auswirkungen auf hydrologische Prozesse analysiert. Für jeden dieser Einflussfaktoren wurden separate SWAT+-Modellszenarien erstellt und mit dem kalibrierten Basismodell verglichen, das die aktuellen Wassereinzugsgebietsbedingungen basierend auf Felddaten repräsentierte. Die Simulationen bestätigten günstige Bedingungen für die Grundwasserneubildung im Pfälzerwald. Im Zusammenhang mit der hohen Versickerungskapazität der Bodensubstrate der Buntsandsteinverwitterung, sowie dem verzögernden und puffernden Einfluss der Baumkronen auf das Niederschlagswasser, wurde eine signifikante Minderungswirkung auf die Oberflächenabflussbildung und ein ausgeprägtes räumliches und zeitliches Rückhaltepotential im Einzugsgebiet simuliert. Dabei wurde festgestellt, dass erhöhte Niederschlagsmengen, die die Versickerungskapazität der sandigen Böden übersteigen, zu einer kurz geschlossenen Abflussreaktion mit ausgeprägten Oberflächenabflussspitzen führen. Die Simulationen zeigten Wechselwirkungen zwischen Wald und Wasserkreislauf sowie die hydrologische Wirksamkeit des Klimawandels, verschlechterter Bodenfunktionen und altersbezogener Bestandesstrukturen im Zusammenhang mit Unterschieden in der Baumkronenausprägung. Zukunfts-Klimaprojektionen, die mit BIAS-bereinigten REKLIES- und EURO-CORDEX-Regionalklimamodellen (RCM) simuliert wurden, prognostizierten einen höheren Verdunstungsbedarf und eine Verlängerung der Vegetationsperiode bei gleichzeitig häufiger auftretenden Dürreperioden innerhalb der Vegetationszeit, was eine Verkürzung der Periode für die Grundwasserneubildung induzierte, und folglich zu einem prognostizierten Rückgang der Grundwasserneubildungsrate bis zur Mitte des Jahrhunderts führte. Aufgrund der starken Korrelation mit Niederschlagsintensitäten und der Dauer von Niederschlagsereignissen, bei allen Unsicherheiten in ihrer Vorhersage, wurde für die Oberflächenabflussgenese eine Steigerung bis zum Ende des Jahrhunderts prognostiziert.
Für die Simulation der Bodenverdichtung wurden die Trockenrohdichte des Bodens und die SCS Curve Number in SWAT+ gemäß Daten aus Befahrungsversuchen im Gebiet angepasst. Die günstigen Infiltrationsbedingungen und die relativ geringe Anfälligkeit für Bodenverdichtung der grobkörnigen Buntsandsteinverwitterung dominierten die hydrologischen Auswirkungen auf Wassereinzugsgebietsebene, sodass lediglich moderate Verschlechterungen wasserbezogener ÖSDL angezeigt wurden. Die Simulationen zeigten weiterhin einen deutlichen Einfluss der Bodenart auf die hydrologische Reaktion nach Bodenverdichtung auf Rückegassen und stützen damit die Annahme, dass die Anfälligkeit von Böden gegenüber Verdichtung mit dem Anteil an Schluff- und Tonbodenpartikeln zunimmt. Eine erhöhte Oberflächenabflussgenese ergab sich durch das Wegenetz im Gesamtgebiet.
Schadflächen mit Bestandesverjüngung wurden anhand eines artifiziellen Modells innerhalb eines Teileinzugsgebiets unter der Annahme von 3-jährigen Baumsetzlingen in einem Entwicklungszeitraum von 10 Jahren simuliert und hinsichtlich spezifischer Was-serhaushaltskomponenten mit Altbeständen (30 bis 80 Jahre) verglichen. Die Simulation ließ darauf schließen, dass bei fehlender Kronenüberschirmung die hydrologisch verzögernde Wirkung der Bestände beeinträchtigt wird, was die Entstehung von Oberflächenabfluss begünstigt und eine quantitativ geringfügig höhere Tiefensickerung fördert. Hydrologische Unterschiede zwischen dem geschlossenem Kronendach der Altbestände und Jungbeständen mit annähernden Freilandniederschlagsbedingungen wurden durch die dominierenden Faktoren atmosphärischer Verdunstungsanstoß, Niederschlagsmengen und Kronenüberschirmungsgrad bestimmt. Je weniger entwickelt das Kronendach von verjüngten Waldbeständen im Vergleich zu Altbeständen, je höher der atmosphärische Verdunstungsanstoß und je geringer die eingetragenen Niederschlagsmengen, desto größer war der hydrologische Unterschied zwischen den Bestandestypen.
Verbesserungsmaßnahmen für den dezentralen Hochwasserschutz sollten folglich kritische Bereiche für die Abflussbildung im Wald (CSA) berücksichtigen. Die hohe Sensibilität und Anfälligkeit der Wälder gegenüber Verschlechterungen der Ökosystembedingungen legen nahe, dass die Erhaltung des komplexen Gefüges und von intakten Wechselbeziehungen, insbesondere unter der gegebenen Herausforderung des Klimawandels, sorgfältig angepasste Schutzmaßnahmen, Anstrengungen bei der Identifizierung von CSA sowie die Erhaltung und Wiederherstellung der hydrologischen Kontinuität in Waldbeständen erfordern.
No Longer Printing the Legend: The Aporia of Heteronormativity in the American Western (1903-1969)
(2023)
This study critically investigates the U.S.-American Western and its construction of sexuality and gender, revealing that the heteronormative matrix that is upheld and defended in the genre is consistently preceded by the exploration of alternative sexualities and ways to think gender beyond the binary. The endeavor to naturalize heterosexuality seems to be baked in the formula of the U.S.-Western. However, as I show in this study, this endeavor relies on an aporia, because the U.S.-Western can only ever attempt to naturalize gender by constructing it first, hence inevitably and simultaneously construct evidence that supports the opposite: the unnaturalness and contingency of gender and sexuality.
My study relies on the works of Raewyn Connell, Pierre Bourdieu, and Judith Butler, and amalgamates in its methodology established approaches from film and literary studies (i.e., close readings) with a Foucaultian understanding of discourse and discourse analysis, which allows me to relate individual texts to cultural, socio-political and economical contexts that invariably informed the production and reception of any filmic text. In an analysis of 14 U.S.-Westerns (excluding three excursions) that appeared between 1903 and 1969 I give ample and minute narrative and film-aesthetical evidence to reveal the complex and contradictory construction of gender and sexuality in the U.S.-Western, aiming to reveal both the normative power of those categories and its structural instability and inconsistency.
This study proofs that the Western up until 1969 did not find a stable pattern to represent the gender binary. The U.S.-Western is not necessarily always looking to confirm or stabilize governing constructs of (gendered) power. However, it without fail explores and negotiates its legitimacy. Heterosexuality and male hegemony are never natural, self-evident, incontestable, or preordained. Quite conversely: the U.S.-Western repeatedly – and in a surprisingly diverse and versatile way – reveals the illogical constructedness of the heteronormative matrix.
My study therefore offers a fresh perspective on the genre and shows that the critical exploration and negotiation of the legitimacy of heteronormativity as a way to organize society is constitutive for the U.S.-Western. It is the inquiry – not necessarily the affirmation – of the legitimacy of this model that gives the U.S.-Western its ideological currency and significance as an artifact of U.S.-American popular culture.
Non-probability sampling is a topic of growing relevance, especially due to its occurrence in the context of new emerging data sources like web surveys and Big Data.
This thesis addresses statistical challenges arising from non-probability samples, where unknown or uncontrolled sampling mechanisms raise concerns in terms of data quality and representativity.
Various methods to quantify and reduce the potential selectivity and biases of non-probability samples in estimation and inference are discussed. The thesis introduces new forms of prediction and weighting methods, namely
a) semi-parametric artificial neural networks (ANNs) that integrate B-spline layers with optimal knot positioning in the general structure and fitting procedure of artificial neural networks, and
b) calibrated semi-parametric ANNs that determine weights for non-probability samples by integrating an ANN as response model with calibration constraints for totals, covariances and correlations.
Custom-made computational implementations are developed for fitting (calibrated) semi-parametric ANNs by means of stochastic gradient descent, BFGS and sequential quadratic programming algorithms.
The performance of all the discussed methods is evaluated and compared for a bandwidth of non-probability sampling scenarios in a Monte Carlo simulation study as well as an application to a real non-probability sample, the WageIndicator web survey.
Potentials and limitations of the different methods for dealing with the challenges of non-probability sampling under various circumstances are highlighted. It is shown that the best strategy for using non-probability samples heavily depends on the particular selection mechanism, research interest and available auxiliary information.
Nevertheless, the findings show that existing as well as newly proposed methods can be used to ease or even fully counterbalance the issues of non-probability samples and highlight the conditions under which this is possible.
Modern decision making in the digital age is highly driven by the massive amount of
data collected from different technologies and thus affects both individuals as well as
economic businesses. The benefit of using these data and turning them into knowledge
requires appropriate statistical models that describe the underlying observations well.
Imposing a certain parametric statistical model goes along with the need of finding
optimal parameters such that the model describes the data best. This often results in
challenging mathematical optimization problems with respect to the model’s parameters
which potentially involve covariance matrices. Positive definiteness of covariance matrices
is required for many advanced statistical models and these constraints must be imposed
for standard Euclidean nonlinear optimization methods which often results in a high
computational effort. As Riemannian optimization techniques proved efficient to handle
difficult matrix-valued geometric constraints, we consider optimization over the manifold
of positive definite matrices to estimate parameters of statistical models. The statistical
models treated in this thesis assume that the underlying data sets used for parameter
fitting have a clustering structure which results in complex optimization problems. This
motivates to use the intrinsic geometric structure of the parameter space. In this thesis,
we analyze the appropriateness of Riemannian optimization over the manifold of positive
definite matrices on two advanced statistical models. We establish important problem-
specific Riemannian characteristics of the two problems and demonstrate the importance
of exploiting the Riemannian geometry of covariance matrices based on numerical studies.
Stress position in English words is well-known to correlate with both their morphological properties and their phonological organisation in terms of non-segmental, prosodic categories like syllable structure. While two generalisations capturing this correlation, directionality and stratification, are well established, the exact nature of the interaction of phonological and morphological factors in English stress assignment is a much debated issue in the literature. The present study investigates if and how directionality and stratification effects in English can be learned by means of Naive Discriminative Learning, a computational model that is trained using error-driven learning and that does not make any a-priori assumptions about the higher-level phonological organisation and morphological structure of words. Based on a series of simulation studies we show that neither directionality nor stratification need to be stipulated as a-priori properties of words or constraints in the lexicon. Stress can be learned solely on the basis of very flat word representations. Morphological stratification emerges as an effect of the model learning that informativity with regard to stress position is unevenly distributed across all trigrams constituting a word. Morphological affix classes like stress-preserving and stress-shifting affixes are, hence, not predefined classes but sets of trigrams that have similar informativity values with regard to stress position. Directionality, by contrast, emerges as spurious in our simulations; no syllable counting or recourse to abstract prosodic representations seems to be necessary to learn stress position in English.
This study scrutinizes press photographs published during the first 6 weeks of the Russian War in Ukraine, beginning February 24th, 2022. Its objective is to shed light on the emotions evoked in Internet-savvy audiences. This empirical research aims to contribute to the understanding of emotional media effects that shape attitudes and actions of ordinary citizens. Main research questions are: What kind of empathic reactions are observed during the Q-sort study? Which visual patterns are relevant for which emotional evaluations and attributions? The assumption is that the evaluations and attributions of empathy are not random, but follow specific patterns. The empathic reactions are based on visual patterns which, in turn, influence the type of empathic reaction. The identification of specific categories for visual and emotional reaction patterns are arrived at in different methodological processes. Visual pattern categories were developed inductively, using the art history method of iconography-iconology to identify six distinct types of visual motifs in a final sample of 33 war photographs. The overarching categories for empathic reactions—empty empathy, vicarious traumatization and witnessing—were applied deductively, building on E. Ann Kaplan's pivotal distinctions. The main result of this research are three novel categories that combine visual patterns with empathic reaction patterns. The labels for these categories are a direct result of the Q-factorial analysis, interpreted through the lense of iconography-iconology. An exploratory nine-scale forced-choice Q-sort study (Nstimuli = 33) was implemented, followed by self-report interviews with a total of 25 participants [F = 16 (64%), M = 9 (36%), Mage = 26.4 years]. Results from this exploratory research include motivational statements on the meanings of war photography from semi-structured post-sort-interviews. The major result of this study are three types of visual patterns (“factors”) that govern distinct empathic reactions in participants: Factor 1 is “veiled empathy” with highest empathy being attributed to photos showing victims whose corpses or faces were veiled. Additional features of “veiled empathy” are a strong anti-politician bias and a heightened awareness of potential visual manipulation. Factor 2 is “mirrored empathy” with highest empathy attributions to photos displaying human suffering openly. Factor 3 focused on the context. It showed a proclivity for documentary style photography. This pattern ranked photos without clear contextualization lower in empathy than those photos displaying the fully contextualized setting. To the best of our knowledge, no study has tested empathic reactions to war photography empirically. In this respect, the study is novel, but also exploratory. Findings like the three patterns of visual empathy might be helpful for photo selection processes in journalism, for political decision-making, for the promotion of relief efforts, and for coping strategies in civil society to deal with the potentially numbing or traumatizing visual legacy of the War in Ukraine.
Survey data can be viewed as incomplete or partially missing from a variety of perspectives and there are different ways of dealing with this kind of data in the prediction and the estimation of economic quantities. In this thesis, we present two selected research contexts in which the prediction or estimation of economic quantities is examined under incomplete survey data.
These contexts are first the investigation of composite estimators in the German Microcensus (Chapters 3 and 4) and second extensions of multivariate Fay-Herriot (MFH) models (Chapters 5 and 6), which are applied to small area problems.
Composite estimators are estimation methods that take into account the sample overlap in rotating panel surveys such as the German Microcensus in order to stabilise the estimation of the statistics of interest (e.g. employment statistics). Due to the partial sample overlaps, information from previous samples is only available for some of the respondents, so the data are partially missing.
MFH models are model-based estimation methods that work with aggregated survey data in order to obtain more precise estimation results for small area problems compared to classical estimation methods. In these models, several variables of interest are modelled simultaneously. The survey estimates of these variables, which are used as input in the MFH models, are often partially missing. If the domains of interest are not explicitly accounted for in a sampling design, the sizes of the samples allocated to them can, by chance, be small. As a result, it can happen that either no estimates can be calculated at all or that the estimated values are not published by statistical offices because their variances are too large.