Refine
Year of publication
- 2024 (102) (remove)
Document Type
- Doctoral Thesis (62)
- Article (15)
- Working Paper (8)
- Part of a Book (4)
- Conference Proceeding (4)
- Monograph/Edited Volume (2)
- Other (2)
- Part of Periodical (2)
- Master's Thesis (1)
- Postprint (1)
Language
- English (102) (remove)
Keywords
- Arctic (4)
- Arktis (4)
- experiment (4)
- Klimawandel (3)
- Satzverarbeitung (3)
- climate change (3)
- communication (3)
- machine learning (3)
- sentence processing (3)
- Atmosphäre (2)
- Carotinoide (2)
- Deep Learning (2)
- Jüdische Studien (2)
- Kohlenstoff (2)
- Seismologie (2)
- atmosphere (2)
- carbon (2)
- carotenoids (2)
- deep learning (2)
- enterprise systems (2)
- entrepreneurship (2)
- modular production (2)
- production control (2)
- seismology (2)
- uncertainty (2)
- voting (2)
- (latente) Mehrebenen-(Kovariaten-)Modelle (1)
- 3D-Einbettung (1)
- 3D-embedding (1)
- Acetobacteraceae (1)
- Achtsamkeit (1)
- Aktin (1)
- Amblystegiaceae (1)
- Ancient Rome (1)
- Anfänge der systematischen lateinische Epigraphik (1)
- Anode (1)
- Antibeschlag-Additive (1)
- Antifouling (1)
- Aphasie (1)
- Archiv (1)
- Atmosphärenforschung (1)
- Ausbreitung der kosmischen Strahlung (1)
- Austausch zwischen zwei Spezies (1)
- Bachdenitrifikation (1)
- Baumgrenzen-Dynamik (1)
- Beschriftung (1)
- Beweidung (1)
- Bias in Science (1)
- Biklausalität (1)
- Bilingualismus (1)
- Biotechnologie (1)
- Blazar (1)
- Blickbewegungen (1)
- Bodenbewegungsmodellierung (1)
- Bodenfeuchtigkeit (1)
- Bodenhydrologie (1)
- Braunmoose (1)
- Bryophyten (1)
- CN (1)
- Central Andes (1)
- Central Europe (1)
- Chronosequenzstudie (1)
- Cicero (1)
- Copolymere (1)
- Corpus Inscriptionum Latinarum (1)
- Counseling (1)
- Cytochrome C (1)
- DNA origami (1)
- DNA origami nanoantennas (DONA) (1)
- Dateistruktur (1)
- Datenaufbereitung (1)
- Datenbank (1)
- Datenbanksysteme (1)
- Datenmonetarisierung (1)
- Datenschutz (1)
- Datenschutz-Grundverordnung (DSGVO) (1)
- Datenschutzmanagement (1)
- Datenverwaltung (1)
- Decarbonisation (1)
- Dekarbonisierung (1)
- Designparameter (1)
- Diamantstempelzelle (1)
- Dichte (1)
- Diffraktion (1)
- Digitale Bildung (1)
- Drohnen-Fernerkundung (1)
- Dynamische kognitive Modellierung (1)
- Dürre (1)
- ENTH domain proteins (1)
- ENTH-Domänen Proteine (1)
- ERP (1)
- Eigenspannung (1)
- Einhaltung der Thora (1)
- Einzugsgebietshydrologie Wasserqualitätsmodell (1)
- Elektronenrückstreubeugung (1)
- Endophyten (1)
- Energie (1)
- Epigenetik (1)
- Epiphyten (1)
- Erdbeben (1)
- Erdmantel (1)
- Erneuerbare Energie (1)
- Essigsäurebakterien (1)
- Essverhalten (1)
- Exhaustivität (1)
- Exoplaneten (1)
- Exoplanetenatmosphären (1)
- Experience Sampling Method (ESM) (1)
- Exziton-Dissoziation (1)
- Eye-Tracking-Verfahren (1)
- Eye-tracking (1)
- Familiarität (1)
- Faulkner studies (1)
- Faulknerforschung (1)
- Fernerkundung (1)
- Fernerkundung an Vulkanen (1)
- Ferroperiklas (1)
- Fertigung (1)
- Flavonoide (1)
- Fokus (1)
- Folientunnel (1)
- Frauen (1)
- Freud-Forschung (1)
- Freud-research (1)
- Frieden (1)
- GNSS (1)
- GPS (1)
- Gammastrahlen: allgemein (1)
- Gefahren (1)
- Gender (1)
- General Data Protection Regulation (GDPR) (1)
- Genomik (1)
- Geomorphologie (1)
- Geophysik (1)
- Geschlecht (1)
- Gletscherschmelze (1)
- Greek mythology (1)
- Grenzschicht (1)
- Habsburg Empire (1)
- Habsburg Studies (1)
- Habsburgisches Reich (1)
- Habsburgstudien (1)
- Halacha (1)
- Halophyten (1)
- Hebrew Catholics (1)
- Hitzestress (1)
- Hochdruck (1)
- Hohlraumeffekte (1)
- Hydrogele (1)
- Hydrologie (1)
- In-situ Experimente (1)
- Inconel 718 (1)
- Indexauswahl (1)
- Individual Participant Data Metaanalyse (1)
- Indoor farming (1)
- Informationsstruktur (1)
- Instabilitäten (1)
- Interessengrad-Techniken (1)
- Intersections (1)
- Intraklassenkorrelation (1)
- Investitionsverhalten (1)
- Investment Behavior (1)
- Jewish Christians (1)
- Jewish Law (1)
- Jewish Studies (1)
- Jewish denominations (1)
- Jewish identity (1)
- Jewish studies (1)
- Jonathan Muroya (1)
- Judaism (1)
- Judenchristen (1)
- Judentum (1)
- Jüdische Sprachen (1)
- Kalibrierung an mehreren Standorten (1)
- Kasus (1)
- Koartikulation (1)
- Kognitionspsychologie (1)
- Kohlenstoffnitrid (CN) (1)
- Kopfsalat (1)
- Kovariatenwahl (1)
- Kunststoff-Additive (1)
- Kursdesign (1)
- Ladungsgenerierung (1)
- Landschaftsentwicklung (1)
- Large-Scale Assessment (1)
- Laserstrahlschmelzen (1)
- Lastverteilung (1)
- Lesen (1)
- Lösungsmittel (1)
- MOOC (1)
- Market Dynamics (1)
- Marktdynamik (1)
- Marriage Preparations (1)
- Massenspektrometrie (1)
- Meereis (1)
- Mehrsprachigkeit (1)
- Messianic Jewish Movement (1)
- Messianic Jews (1)
- Messianic Judaism (1)
- Messianische Juden (1)
- Messianism (1)
- Messianismus (1)
- Meta-Selbstanpassung (1)
- Meteorologie (1)
- Micro Degree (1)
- Mikroalgen (1)
- Molekularbiologie (1)
- Moorsukzession (1)
- Moos-Mikroben-Interaktion (1)
- Moos-assoziierte Methanoxidation (1)
- Moos-assoziierte Methanproduktion (1)
- Morphologie (1)
- Nahrung der Zukunft (1)
- Nationale Aktionspläne (1)
- Natrium-Ionen-Batterie (1)
- Naturgefahren (1)
- Negotiation Performance (1)
- New religious movements (1)
- Nicht-Fulleren-Akzeptoren (1)
- Numerus (1)
- Nutzer-Engagement (1)
- Online-Lehre (1)
- Onlinekurs (1)
- Onlinekurs-Produktion (1)
- Permafrost (1)
- Perowskit-Solarzellen (1)
- Pflanzen-Mikroben-Interaktionen (1)
- Pflanzenwachstum (1)
- Phonetik (1)
- Phonologie (1)
- Physik (1)
- Policy Changes (1)
- Politikänderungen (1)
- Poweranalyse (1)
- Produktionssteuerung (1)
- Psychoanalyse (1)
- Psycholinguistik (1)
- Reinforcement Learning (1)
- Relativized Minimality (1)
- Relativsätze (1)
- Renewable Energy (1)
- Reproduktion von Inschriften (1)
- Restaurierung von Flüssen (1)
- Russian (1)
- Russisch (1)
- SERS (1)
- Saline Landwirtschaft (1)
- Schadstofftransport (1)
- Schuld (1)
- Schulleistung (1)
- Schwefel (1)
- Scientific Narratives (1)
- Sebastian Kurz (1)
- Seesediment (1)
- Selection-Linked Integration (1)
- Sequenzielle Likelihood (1)
- Shidduchin (1)
- Simulation (1)
- Simulation, Größe (1)
- Social Bots erkennen (1)
- Softwareanalytik (1)
- Softwarevisualisierung (1)
- Solarzellen (1)
- Spaltsätze (1)
- Spartacus (1)
- Spektroskopie (1)
- Sphagnum (1)
- Spracherwerb (1)
- Sprachideologie (1)
- Sprachverständnis (1)
- Stern-Planeten-Wechselwirkung (1)
- Sternphysik (1)
- Strömungsneigung (1)
- Synchrotronstrahlung (1)
- Synthese (1)
- Talmudic Judaism (1)
- Talmudisches Judentum (1)
- Tau-Protein (1)
- Textur (1)
- Theorie (1)
- Theory (1)
- Thermoelektrizität (1)
- Thora (1)
- Torah (1)
- Torah observance (1)
- Torfmoose (1)
- Transkriptomik (1)
- Translanguaging (1)
- Treemaps (1)
- Ultraschall (1)
- Ungewissheit (1)
- Untereinheitenimpfstoff (1)
- Utility-Funktionen (1)
- Verhandlungsleistung (1)
- Voreingenommenheit in der Wissenschaft (1)
- Vorhersage (1)
- Vorhersagemodelle (1)
- Vulkanüberwachung (1)
- WPS Agenda (1)
- WPS agenda (1)
- Wahrnehmungsdialektologie (1)
- Wasserdampf (1)
- Web-basiertes Rendering (1)
- Wellen (1)
- William Faulkner (1)
- Wirtsspezifität (1)
- Wurzelhaarbildung (1)
- Wärmefluss (1)
- Wärmekapazität (1)
- Zellmotilität (1)
- Zentraleuropa (1)
- Zoom (1)
- Zustandsverwaltung (1)
- Zuweisung thematischer Rollen (1)
- Zwitterionen (1)
- Zyklone (1)
- achtsames Essen (1)
- actin (1)
- additive Fertigung (1)
- additive manufacturing (1)
- agents (1)
- anode (1)
- anomale Diffusion (1)
- anomalous diffusion (1)
- anthropocene (1)
- antifogging additives (1)
- antifouling (1)
- aphasia (1)
- architecture-based software adaptation (1)
- architekturbasierte Softwareanpassung (1)
- assimilatorische Aufnahme (1)
- assimilatory uptake (1)
- atmospheric science (1)
- beliefs (1)
- biclausality (1)
- bilingualism (1)
- biotechnology (1)
- blazar (1)
- bleifreie Perowskit-Solarzellen (1)
- boundary layer (1)
- bribery (1)
- brown mosses (1)
- bryophytes (1)
- business models (1)
- cartel (1)
- cartoons (1)
- case (1)
- catchment hydrology Water quality model (1)
- causal AI (1)
- causal discovery (1)
- causal reasoning (1)
- causal structure learning (1)
- cavity effects (1)
- cell motility (1)
- charge generation (1)
- chemically induced dislocation (1)
- chemisch-induzierte Dislokation (1)
- chronosequence study (1)
- classical reception (1)
- clefts (1)
- coarticulation (1)
- code of conduct (1)
- cognitive psychology (1)
- collusion (1)
- contaminant transport (1)
- continuation thesis (1)
- cooperation (1)
- coordination (1)
- copolymers (1)
- corruption (1)
- cosmic ray propagation (1)
- covariate selection (1)
- curriculum design (1)
- curriculum development (1)
- curtailment thesis (1)
- cyclones (1)
- data and methods (1)
- data management (1)
- data monetization (1)
- data preparation (1)
- data privacy (1)
- data-driven artifacts (1)
- database (1)
- database systems (1)
- dating (1)
- deep reinforcement learning (1)
- degree-of-interest techniques (1)
- density (1)
- design parameters (1)
- design-science research (1)
- developing country cities (1)
- diamond anvil cell (1)
- diffraction (1)
- diffraction elastic constants (1)
- diffraktionselastische Konstanten (1)
- digital education (1)
- digital platform openness (1)
- digital product development (1)
- digitale Produktentwicklung (1)
- discrete choice (1)
- discrete event simulation (1)
- discretion (1)
- discrimination (1)
- drought (1)
- dynamical cognitive modeling (1)
- e-learning (1)
- earth mantle (1)
- earth system governance (1)
- earthquake (1)
- eating behavior (1)
- ecology (1)
- ecosystem reconstruction (1)
- elections (1)
- electron backscatter diffraction (1)
- embezzlement (1)
- emotions (1)
- enablement thesis (1)
- endophytes (1)
- energy (1)
- energy policy (1)
- enteprise-level (1)
- enterprise architecture (1)
- enterprise ecosystems: the integrated enterprise (1)
- entrepreneurship education (1)
- epigenetics (1)
- epiphytes (1)
- equity crowdfunding (1)
- erklärte Varianz (1)
- evaluation (1)
- exciton dissociation (1)
- executive functions (1)
- exekutive Funktionen (1)
- exhaustivity (1)
- exoplanet atmospheres (1)
- exoplanets (1)
- experimental studies (1)
- experimentelle Studien (1)
- explained variance (1)
- eye movements (1)
- eye tracking (1)
- eye-tracking (1)
- familiarity (1)
- federated industrial platform ecosystems (1)
- feminist foreign policy (1)
- feministische Außenpolitik (1)
- ferropericlase (1)
- file structure (1)
- finance (1)
- financial access and inclusion (1)
- flavonoids (1)
- focus (1)
- follower turnover intentions (1)
- forecasting (1)
- future food (1)
- galactic magnetic fields (1)
- galaktische Magnetfelder (1)
- gamma rays: general (1)
- ganzzahlige lineare Optimierung (1)
- gemischte Daten (1)
- gender (1)
- gender pay gap (1)
- genetic screen (1)
- genetischer Screen (1)
- genomics (1)
- geographische Großstudie (1)
- geomorphology (1)
- geophysics (1)
- geschützter Anbau (1)
- gift-giving (1)
- glacier melt (1)
- global commons (1)
- globales Navigationssatellitensystem (1)
- globales Positionsbestimmungssystem (1)
- graph neural networks (1)
- graphische neuronale Netze (1)
- grazing (1)
- ground motion modeling (1)
- guilt (1)
- halophytes (1)
- hazards (1)
- heat capacity (1)
- heat flux (1)
- heat stress (1)
- hebräische Katholiken (1)
- hierarchical data (1)
- hierarchische Daten (1)
- hierarchy (1)
- high pressure (1)
- high resolution (1)
- historical consciousness (1)
- historiography (1)
- history (1)
- history teaching (1)
- history textbooks (1)
- hohe Auflösung (1)
- homeostasis (1)
- host-specificity (1)
- human diet (1)
- hybrid Bayesian-classical precision simulations (1)
- hybride Bayesianisch-klassische Simulationen der Schätzgenauigkeit (1)
- hydrogels (1)
- hydrology (1)
- hydrothermale Alteration (1)
- in-operando SAXS (1)
- in-situ testing (1)
- index selection (1)
- individual participant data meta-analysis (1)
- individually, multisite, and cluster randomized trials (1)
- individuell-, block- und cluster-randomisierte Studien (1)
- indoor farming (1)
- infinitely repeated game (1)
- informal organization (1)
- information structure (1)
- information systems research (1)
- instabilities (1)
- integer linear programming (1)
- interactive visualization (1)
- interaktive Visualisierung (1)
- international law (1)
- interspecies interchange (1)
- intraclass correlation (1)
- is governance (1)
- it/business alignment (1)
- jüdische Identität (1)
- jüdische Konfessionen (1)
- kausale Entdeckung (1)
- kausale KI (1)
- kausale Schlussfolgerung (1)
- kausales Strukturlernen (1)
- knowledge sharing (1)
- labeling (1)
- lake sediment (1)
- landscape evolution (1)
- language acquisition (1)
- large-scale assessment (1)
- large-scale study (1)
- laser powder bed fusion (1)
- lead-free perovskites (1)
- leadership (1)
- learning environment (1)
- lettuce (1)
- levels of information systems research (process, enterprise-, ecosystem- & industry-level) (1)
- linked employer-employee data (1)
- load balancing (1)
- mHM-Nitrat-Modell (1)
- mHM-Nitrate model (1)
- manufacturing (1)
- margins of error (1)
- marriage (1)
- maschinelles Lernen (1)
- mass spectrometry (1)
- mating (1)
- mechanical behavior (1)
- mechanisches Verhalten (1)
- menschliche Ernährung (1)
- messianisch-jüdische Bewegung (1)
- messianische Juden (1)
- messianisches Judentum (1)
- meta self-adaptation (1)
- meteorology (1)
- methanogenic archaea (1)
- methanotrophic bacteria (1)
- methanoxidierende Bakterien (1)
- methanproduzierende Archaeen (1)
- miRNA Regulation (1)
- miRNA regulation (1)
- micro degree (1)
- micro-credential (1)
- microalgae (1)
- microbial soil communities (1)
- mikrobielle Bodengemeinschaften (1)
- mikrobielle Moor-Kerngemeinschaft (1)
- mindful eating (1)
- mindfulness (1)
- mixed data (1)
- mobile-immobile model (MIM) (1)
- model-driven engineering (1)
- modellgesteuerte Entwicklung (1)
- modulare Produktion (1)
- molecular biology (1)
- morpho-syntactic features (1)
- morpho-syntaktische Merkmale (1)
- morphological analysis (1)
- morphology (1)
- moss-associated archaea (1)
- moss-associated bacteria (1)
- moss-associated methanogenesis (1)
- moss-associated methanotrophy (1)
- moss-microbe-interactions (1)
- motivation (1)
- multi-agent system (1)
- multi-party systems (1)
- multi-site calibration (1)
- multilevel (latent covariate) models (1)
- multiplexity (1)
- national action plans (1)
- natural hazards (1)
- neue religiöse Bewegungen (1)
- nicht-parametrische bedingte Unabhängigkeitstests (1)
- nicht-thermische Strahlung (1)
- non-fullerene acceptors (1)
- non-parametric conditional independence testing (1)
- non-thermal radiation (1)
- northern peatlands (1)
- number (1)
- nördliche Moore (1)
- observational data (1)
- occupational gender segregation (1)
- online course creation (1)
- online course design (1)
- online teaching (1)
- opinion polls (1)
- optical properties (1)
- optische Eigenschaften (1)
- organic solar cell (1)
- organic-inorganic hybrids (1)
- organisch-anorganische Hybride (1)
- organische Solarzelle (1)
- organizational level (1)
- parameter transferability (1)
- partial replication (1)
- partielle Replikation (1)
- partnership (1)
- party competition (1)
- peace (1)
- peatland core microbiome (1)
- peatland development (1)
- perceived meaningfulness (1)
- permafrost (1)
- perovskite (1)
- perovskite solar cells (1)
- persistent memory (1)
- persistenter Speicher (1)
- pflanzliche Sekundär Metabolite (1)
- phonetics (1)
- phonology (1)
- photovoltaische Materialien (1)
- physics (1)
- physiological needs (1)
- planetary boundaries (1)
- plant growth (1)
- plant secondary metabolites (1)
- plant-microbe interactions (1)
- plastic additives (1)
- pmem (1)
- politics and the media (1)
- polling (1)
- pollution (1)
- polytunnel (1)
- power analysis (1)
- prediction models (1)
- prisoner’s dilemma (1)
- privacy management (1)
- progressive rendering (1)
- progressives Rendering (1)
- promises (1)
- protected cultivation (1)
- psychoanalysis (1)
- psycholinguistics (1)
- public good (1)
- rapid earthquake impact assessment (1)
- reading (1)
- reinforcement learning (1)
- relative clauses (1)
- relativierte Minimalitätstheorie (1)
- relativistic processes (1)
- relativistische Prozesse (1)
- remote sensing (1)
- residual stress (1)
- river restoration (1)
- root hair formation (1)
- räumlich-zeitliche Validierung (1)
- saline agriculture (1)
- scalable (1)
- schnelle Einschätzung von Erdbebenauswirkungen (1)
- schwach elektrischer Fisch (1)
- sea ice (1)
- secondary plant metabolites (1)
- sedimentary ancient DNA (1)
- seismic hazard (1)
- seismische Gefährdung (1)
- sekundäre Pflanzenstoffe (1)
- selbstanpassende Systeme (1)
- selbstheilende Systeme (1)
- selection-linked integration (1)
- self-adaptive systems (1)
- self-awarenesssender-receiver framework zoom (1)
- self-healing (1)
- self-view,virtual meetings (1)
- sender-receiver framework (1)
- sequential likelihood (1)
- simulation (1)
- simulation, size (1)
- skalierbar (1)
- slavery (1)
- social bot detection (1)
- social network (1)
- sodium-ion battery (1)
- soft information (1)
- software analytics (1)
- software visualization (1)
- soil hydrology (1)
- soil moisture (1)
- solar cells (1)
- spatiotemporal validation (1)
- spectroscopy (1)
- spoken sentence comprehension (1)
- stabile Schichtung (1)
- stable stratification (1)
- star-planet interaction (1)
- state management (1)
- stellar physics (1)
- stereotypes (1)
- strategic uncertainty (1)
- stream denitrification (1)
- stream sinuosity (1)
- street-level bureaucracy (1)
- student achievement (1)
- städtisch (1)
- städtischer Wärmeinseleffekt (1)
- subunit vaccine (1)
- sulfur (1)
- suspended sediment (1)
- suspendiertes Sediment (1)
- synchrotron radiation (1)
- synthesis (1)
- tabellarische Dateien (1)
- tabular data (1)
- tau proteins (1)
- technologies (1)
- textbook research (1)
- texture (1)
- thematic-role assignment (1)
- theological field study (1)
- theologische Feldstudie (1)
- thermoelectricity (1)
- tin perovskites (1)
- transcriptomics (1)
- transfers (1)
- treeline dynamics (1)
- treemaps (1)
- tropical freshwater fish (1)
- tropische Süßwasserfische (1)
- ultra-high energy cosmic rays (1)
- ultrahochenergetische kosmische Strahlung (1)
- ultrasound tongue imaging (1)
- urban heat island (1)
- user engagement (1)
- utility functions (1)
- video games (1)
- visionary leadership (1)
- visuell-linguistische Integration (1)
- visuo-linguistic integration (1)
- volcanic hydrothermal systems (1)
- volcano remote sensing (1)
- vote switching (1)
- voters (1)
- vulkanische Entgasungs-und Hydrothermalsysteme (1)
- vulkanische Entgasungssysteme (1)
- water vapour (1)
- waves (1)
- weakly electric fish (1)
- web-based rendering (1)
- wissenschaftliche Narrative (1)
- women (1)
- zentrale Anden (1)
- zwitterions (1)
- ÖVP (1)
- Ökologie (1)
- Ökosystem-Rekonstruktion (1)
- Überschneidungen (1)
- Übertragbarkeit der Parameter (1)
Institute
- Extern (13)
- Institut für Physik und Astronomie (11)
- Fachgruppe Betriebswirtschaftslehre (10)
- Institut für Biochemie und Biologie (10)
- Fachgruppe Volkswirtschaftslehre (8)
- Hasso-Plattner-Institut für Digital Engineering GmbH (8)
- Center for Economic Policy Analysis (CEPA) (7)
- Fachgruppe Politik- & Verwaltungswissenschaft (7)
- Historisches Institut (6)
- Institut für Geowissenschaften (6)
With the surging reliance on videoconferencing tools, users may find themselves staring at their reflections for hours a day. We refer to this phenomenon as self-referential information (SRI) consumption and examine its consequences and the mechanism behind them. Building on self-awareness research and the strength model of self-control, we argue that SRI consumption heightens the state of self-awareness and thereby depletes participants’ mental resources, eventually undermining virtual meeting (VM) outcomes. Our findings from a European employee sample revealed contrary effects of SRI consumption across speaker vs listener roles. Engagement with self-view is positively associated with self-awareness, which, in turn, is negatively related to satisfaction with VM process, perceived productivity, and enjoyment. Looking at the self while listening to others exhibits adverse direct and indirect (via self-awareness) effects on VM outcomes. However, looking at the self when speaking exhibits positive direct effects on satisfaction with VM process and enjoyment.
It is a well-attested finding in head-initial languages that individuals with aphasia (IWA) have greater difficulties in comprehending object-extracted relative clauses (ORCs) as compared to subject-extracted relative clauses (SRCs). Adopting the linguistically based approach of Relativized Minimality (RM; Rizzi, 1990, 2004), the subject-object asymmetry is attributed to the occurrence of a Minimality effect in ORCs due to reduced processing capacities in IWA (Garraffa & Grillo, 2008; Grillo, 2008, 2009). For ORCs, it is claimed that the embedded subject intervenes in the syntactic dependency between the moved object and its trace, resulting in greater processing demands. In contrast, no such intervener is present in SRCs. Based on the theoretical framework of RM and findings from language acquisition (Belletti et al., 2012; Friedmann et al., 2009), it is assumed that Minimality effects are alleviated when the moved object and the intervening subject differ in terms of relevant syntactic features. For German, the language under investigation, the RM approach predicts that number (i.e., singular vs. plural) and the lexical restriction [+NP] feature (i.e., lexically restricted determiner phrases vs. lexically unrestricted pronouns) are considered relevant in the computation of Minimality. Greater degrees of featural distinctiveness are predicted to result in more facilitated processing of ORCs, because IWA can more easily distinguish between the moved object and the intervener.
This cumulative dissertation aims to provide empirical evidence on the validity of the RM approach in accounting for comprehension patterns during relative clause (RC) processing in German-speaking IWA. For that purpose, I conducted two studies including visual-world eye-tracking experiments embedded within an auditory referent-identification task to study the offline and online processing of German RCs. More specifically, target sentences were created to evaluate (a) whether IWA demonstrate a subject-object asymmetry, (b) whether dissimilarity in the number and/or the [+NP] features facilitates ORC processing, and (c) whether sentence processing in IWA benefits from greater degrees of featural distinctiveness. Furthermore, by comparing RCs disambiguated through case marking (at the relative pronoun or the following noun phrase) and number marking (inflection of the sentence-final verb), it was possible to consider the role of the relative position of the disambiguation point. The RM approach predicts that dissimilarity in case should not affect the occurrence of Minimality effects. However, the case cue to sentence interpretation appears earlier within RCs than the number cue, which may result in lower processing costs in case-disambiguated RCs compared to number-disambiguated RCs.
In study I, target sentences varied with respect to word order (SRC vs. ORC) and dissimilarity in the [+NP] feature (lexically restricted determiner phrase vs. pronouns as embedded element). Moreover, by comparing the impact of these manipulations in case- and number-disambiguated RCs, the effect of dissimilarity in the number feature was explored. IWA demonstrated a subject-object asymmetry, indicating the occurrence of a Minimality effect in ORCs. However, dissimilarity neither in the number feature nor in the [+NP] feature alone facilitated ORC processing. Instead, only ORCs involving distinct specifications of both the number and the [+NP] features were well comprehended by IWA. In study II, only temporarily ambiguous ORCs disambiguated through case or number marking were investigated, while controlling for varying points of disambiguation. There was a slight processing advantage of case marking as cue to sentence interpretation as compared to number marking.
Taken together, these findings suggest that the RM approach can only partially capture empirical data from German IWA. In processing complex syntactic structures, IWA are susceptible to the occurrence of the intervening subject in ORCs. The new findings reported in the thesis show that structural dissimilarity can modulate sentence comprehension in aphasia. Interestingly, IWA can override Minimality effects in ORCs and derive correct sentence meaning if the featural specifications of the constituents are maximally different, because they can more easily distinguish the moved object and the intervening subject given their reduced processing capacities. This dissertation presents new scientific knowledge that highlights how the syntactic theory of RM helps to uncover selective effects of morpho-syntactic features on sentence comprehension in aphasia, emphasizing the close link between assumptions from theoretical syntax and empirical research.
Relativistic pair beams produced in the cosmic voids by TeV gamma rays from blazars are expected to produce a detectable GeV-scale cascade emission missing in the observations. The suppression of this secondary cascade implies either the deflection of the pair beam by intergalactic magnetic fields (IGMFs) or an energy loss of the beam due to the electrostatic beam-plasma instability. IGMF of femto-Gauss strength is sufficient to significantly deflect the pair beams reducing the flux of secondary cascade below the observational limits. A similar flux reduction may result in the absence of the IGMF from the beam energy loss by the instability before the inverse Compton cooling. This dissertation consists of two studies about the instability role in the evolution of blazar-induced beams.
Firstly, we investigated the effect of sub-fG level IGMF on the beam energy loss by the instability. Considering IGMF with correlation lengths smaller than a few kpc, we found that such fields increase the transverse momentum of the pair beam particles, dramatically reducing the linear growth rate of the electrostatic instability and hence the energy-loss rate of the pair beam. Our results show that the IGMF eliminates beam plasma instability as an effective energy-loss agent at a field strength three orders of magnitude below that needed to suppress the secondary cascade emission by magnetic deflection. For intermediate-strength IGMF, we do not know a viable process to explain the observed absence of GeV-scale cascade emission and hence can be excluded.
Secondly, we probed how the beam-plasma instability feeds back on the beam, using a realistic two-dimensional beam distribution. We found that the instability broadens the beam opening angles significantly without any significant energy loss, thus confirming a recent feedback study on a simplified one-dimensional beam distribution. However, narrowing diffusion feedback of the beam particles with Lorentz factors less than 1e6 might become relevant even though initially it is negligible. Finally, when considering the continuous creation of TeV pairs, we found that the beam distribution and the wave spectrum reach a new quasi-steady state, in which the scattering of beam particles persists and the beam opening angle may increase by a factor of hundreds. This new intrinsic scattering of the cascade can result in time delays of around ten years, thus potentially mimicking the IGMF deflection. Understanding the implications on the GeV cascade emission requires accounting for inverse Compton cooling and simulating the beam-plasma system at different points in the IGM.
Classification, prediction and evaluation of graph neural networks on online social media platforms
(2024)
The vast amount of data generated on social media platforms have made them a valuable source of information for businesses, governments and researchers. Social media data can provide insights into user behavior, preferences, and opinions. In this work, we address two important challenges in social media analytics. Predicting user engagement with online content has become a critical task for content creators to increase user engagement and reach larger audiences. Traditional user engagement prediction approaches rely solely on features derived from the user and content. However, a new class of deep learning methods based on graphs captures not only the content features but also the graph structure of social media networks.
This thesis proposes a novel Graph Neural Network (GNN) approach to predict user interaction with tweets. The proposed approach combines the features of users, tweets and their engagement graphs. The tweet text features are extracted using pre-trained embeddings from language models, and a GNN layer is used to embed the user in a vector space. The GNN model then combines the features and graph structure to predict user engagement. The proposed approach achieves an accuracy value of 94.22% in classifying user interactions, including likes, retweets, replies, and quotes.
Another major challenge in social media analysis is detecting and classifying social bot accounts. Social bots are automated accounts used to manipulate public opinion by spreading misinformation or generating fake interactions. Detecting social bots is critical to prevent their negative impact on public opinion and trust in social media. In this thesis, we classify social bots on Twitter by applying Graph Neural Networks. The proposed approach uses a combination of both the features of a node and an aggregation of the features of a node’s neighborhood to classify social bot accounts. Our final results indicate a 6% improvement in the area under the curve score in the final predictions through the utilization of GNN.
Overall, our work highlights the importance of social media data and the potential of new methods such as GNNs to predict user engagement and detect social bots. These methods have important implications for improving the quality and reliability of information on social media platforms and mitigating the negative impact of social bots on public opinion and discourse.
The present paper proposes a novel approach for equilibrium selection in the infinitely repeated prisoner’s dilemma where players can communicate before choosing their strategies. This approach yields a critical discount factor that makes different predictions for cooperation than the usually considered sub-game perfect or risk dominance critical discount factors. In laboratory experiments, we find that our factor is useful for predicting cooperation. For payoff changes where the usually considered factors and our factor make different predictions, the observed cooperation is consistent with the predictions based on our factor.
While the economic harm of cartels is caused by their price-increasing effect, sanctioning by courts rather targets at the underlying process of firms reaching a price-fixing agreement. This paper provides experimental evidence on the question whether such sanctioning meets the economic target, i.e., whether evidence of a collusive meeting of the firms and of the content of their communication reliably predicts subsequent prices. We find that already the mere mutual agreement to meet predicts a strong increase in prices. Conversely, express distancing from communication completely nullifies its otherwise price-increasing effect. Using machine learning, we show that communication only increases prices if it is very explicit about how the cartel plans to behave.
The Central Andean region is characterized by diverse climate zones with sharp transitions between them. In this work, the area of interest is the South-Central Andes in northwestern Argentina that borders with Bolivia and Chile. The focus is the observation of soil moisture and water vapour with Global Navigation Satellite System (GNSS) remote-sensing methodologies. Because of the rapid temporal and spatial variations of water vapour and moisture circulations, monitoring this part of the hydrological cycle is crucial for understanding the mechanisms that control the local climate. Moreover, GNSS-based techniques have previously shown high potential and are appropriate for further investigation. This study includes both logistic-organization effort and data analysis. As for the prior, three GNSS ground stations were installed in remote locations in northwestern Argentina to acquire observations, where there was no availability of third-party data.
The methodological development for the observation of the climate variables of soil moisture and water vapour is independent and relies on different approaches. The soil-moisture estimation with GNSS reflectometry is an approximation that has demonstrated promising results, but it has yet to be operationally employed. Thus, a more advanced algorithm that exploits more observations from multiple satellite constellations was developed using data from two pilot stations in Germany. Additionally, this algorithm was slightly modified and used in a sea-level measurement campaign. Although the objective of this application is not related to monitoring hydrological parameters, its methodology is based on the same principles and helps to evaluate the core algorithm. On the other hand, water-vapour monitoring with GNSS observations is a well-established technique that is utilized operationally. Hence, the scope of this study is conducting a meteorological analysis by examining the along-the-zenith air-moisture levels and introducing indices related to the azimuthal gradient.
The results of the experiments indicate higher-quality soil moisture observations with the new algorithm. Furthermore, the analysis using the stations in northwestern Argentina illustrates the limits of this technology because of varying soil conditions and shows future research directions. The water-vapour analysis points out the strong influence of the topography on atmospheric moisture circulation and rainfall generation. Moreover, the GNSS time series allows for the identification of seasonal signatures, and the azimuthal-gradient indices permit the detection of main circulation pathways.
I need to move it, move It!
(2024)
Purpose
Student interest and learning success is an important component of teaching learning research. However, while the impact of emotions and psychological needs on students' achievements has been a focus of research, the impact of their physiological needs has been under studied. In this explorative study, I examine what impact the physiological and psychological needs of student teachers have on their feelings, motivation, and interest in different learning settings.
Approach
The research method used was the daily reconstruction method and included the Felix-App, a new digital research and feedback tool that allows the measurement of feelings, needs, motivation, and interest in real time.
Findings
The results suggest the importance of physiological needs for perceived emotions, motivation, and interest in the learning subject. The psychological needs, on the other hand, are of less importance.
Originality
The Felix-App is an innovative tool to learn more about learners' emotions and needs in real learning settings. The importance of physiological needs has been known since Maslow, but should be considered much more in the context of teaching and learning research in the future. There is a need for further research on the importance of physical aspects in learning.
The Arctic is the hot spot of the ongoing, global climate change. Over the last decades, near-surface temperatures in the Arctic have been rising almost four times faster than on global average. This amplified warming of the Arctic and the associated rapid changes of its environment are largely influenced by interactions between individual components of the Arctic climate system. On daily to weekly time scales, storms can have major impacts on the Arctic sea-ice cover and are thus an important part of these interactions within the Arctic climate. The sea-ice impacts of storms are related to high wind speeds, which enhance the drift and deformation of sea ice, as well as to changes in the surface energy budget in association with air mass advection, which impact the seasonal sea-ice growth and melt.
The occurrence of storms in the Arctic is typically associated with the passage of transient cyclones. Even though the above described mechanisms how storms/cyclones impact the Arctic sea ice are in principal known, there is a lack of statistical quantification of these effects. In accordance with that, the overarching objective of this thesis is to statistically quantify cyclone impacts on sea-ice concentration (SIC) in the Atlantic Arctic Ocean over the last four decades. In order to further advance the understanding of the related mechanisms, an additional objective is to separate dynamic and thermodynamic cyclone impacts on sea ice and assess their relative importance. Finally, this thesis aims to quantify recent changes in cyclone impacts on SIC. These research objectives are tackled utilizing various data sets, including atmospheric and oceanic reanalysis data as well as a coupled model simulation and a cyclone tracking algorithm.
Results from this thesis demonstrate that cyclones are significantly impacting SIC in the Atlantic Arctic Ocean from autumn to spring, while there are mostly no significant impacts in summer. The strength and the sign (SIC decreasing or SIC increasing) of the cyclone impacts strongly depends on the considered daily time scale and the region of the Atlantic Arctic Ocean. Specifically, an initial decrease in SIC (day -3 to day 0 relative to the cyclone) is found in the Greenland, Barents and Kara Seas, while SIC increases following cyclones (day 0 to day 5 relative to the cyclone) are mostly limited to the Barents and Kara Seas.
For the cold season, this results in a pronounced regional difference between overall (day -3 to day 5 relative to the cyclone) SIC-decreasing cyclone impacts in the Greenland Sea and overall SIC-increasing cyclone impacts in the Barents and Kara Seas. A cyclone case study based on a coupled model simulation indicates that both dynamic and thermodynamic mechanisms contribute to cyclone impacts on sea ice in winter. A typical pattern consisting of an initial dominance of dynamic sea-ice changes followed by enhanced thermodynamic ice growth after the cyclone passage was found. This enhanced ice growth after the cyclone passage most likely also explains the (statistical) overall SIC-increasing effects of cyclones in the Barents and Kara Seas in the cold season.
Significant changes in cyclone impacts on SIC over the last four decades have emerged throughout the year. These recent changes are strongly varying from region to region and month to month. The strongest trends in cyclone impacts on SIC are found in autumn in the Barents and Kara Seas. Here, the magnitude of destructive cyclone impacts on SIC has approximately doubled over the last four decades. The SIC-increasing effects following the cyclone passage have particularly weakened in the Barents Sea in autumn. As a consequence, previously existing overall SIC-increasing cyclone impacts in this region in autumn have recently disappeared. Generally, results from this thesis show that changes in the state of the sea-ice cover (decrease in mean sea-ice concentration and thickness) and near-surface air temperature are most important for changed cyclone impacts on SIC, while changes in cyclone properties (i.e. intensity) do not play a significant role.
While Information Systems Research exists at the individual and workgroup levels, research on IS at the enterprise level is less common. The potential synergies between the study of enterprise systems (ES) and related fields have been underexplored and often treated as separate entities. The ongoing challenge is to seamlessly integrate technological advances and align business processes across organizations. While systems integration within an organization is common, changes occur when industry and ecosystem perspectives come into play. The four selected papers address different facets of the future role of enterprise ecosystems, including implementation challenges, ecosystem boundaries, and B2B platform specifics.