Bronze Open-Access
Refine
Year of publication
Document Type
- Article (352)
- Other (54)
- Working Paper (22)
- Review (10)
- Conference Proceeding (4)
- Report (3)
- Part of a Book (2)
- Part of Periodical (2)
- Monograph/Edited Volume (1)
Keywords
- stars: massive (11)
- subdwarfs (11)
- gamma rays: general (10)
- stars: atmospheres (10)
- stars: winds, outflows (9)
- stars: early-type (8)
- ISM: supernova remnants (7)
- stars: abundances (7)
- stars: mass-loss (7)
- Magellanic Clouds (6)
- X-rays: binaries (6)
- catalogs (6)
- cosmic rays (6)
- galaxies: ISM (6)
- galaxies: starburst (6)
- radiation mechanisms: non-thermal (6)
- acceleration of particles (5)
- astroparticle physics (5)
- galaxies: abundances (5)
- galaxies: high-redshift (5)
- stars: evolution (5)
- surveys (5)
- Arabidopsis (4)
- Arabidopsis thaliana (4)
- COVID-19 (4)
- Sun: activity (4)
- Sun: chromosphere (4)
- binaries: close (4)
- dark ages, reionization, first stars (4)
- galaxies: dwarf (4)
- methods: observational (4)
- stars: fundamental parameters (4)
- stars: horizontal-branch (4)
- stars: magnetic field (4)
- techniques: imaging spectroscopy (4)
- white dwarfs (4)
- Africa (3)
- ISM: structure (3)
- binaries: general (3)
- binaries: spectroscopic (3)
- climate change (3)
- galaxies: evolution (3)
- galaxies: fundamental parameters (3)
- galaxies: interactions (3)
- hydrodynamics (3)
- mental health (3)
- organic solar cells (3)
- resilience (3)
- stars: Wolf-Rayet (3)
- stars: rotation (3)
- techniques: spectroscopic (3)
- Agentenbasierte Modellierung (2)
- Algeria (2)
- Chinese (2)
- Earthquake source observations (2)
- Experience (2)
- Galaxy: general (2)
- Galaxy: kinematics and dynamics (2)
- Galaxy: stellar content (2)
- German (2)
- Hertzsprung-Russell and C-M diagrams (2)
- ISM: kinematics and dynamics (2)
- Industrie 4.0 (2)
- Krisenfrüherkennung (2)
- Künstliche Intelligenz (2)
- Mental arithmetic (2)
- Mental number line (2)
- Migration (2)
- Migrationspolitik (2)
- Numerical distance effect (2)
- Risikoanalyse (2)
- Sun: filaments, prominences (2)
- Vorausschau (2)
- Vorhersage (2)
- Wanderungsprognosen (2)
- Waveform inversion (2)
- admixture (2)
- adolescence (2)
- anomalous diffusion (2)
- binaries: eclipsing (2)
- charge transport (2)
- convection (2)
- data (2)
- dialysis (2)
- dust, extinction (2)
- event-related potentials (2)
- first stars (2)
- galaxies: active (2)
- galaxies: star formation (2)
- gamma rays: galaxies (2)
- gamma rays: stars (2)
- gamma-rays: galaxies (2)
- gender (2)
- learning factory (2)
- machine learning (2)
- maschinelles Lernen (2)
- microscopy (2)
- migration (2)
- modeling (2)
- morphology (2)
- motivation (2)
- mtDNA (2)
- outflows (2)
- permafrost (2)
- photocurrent generation (2)
- pulsars: general (2)
- radiative transfer (2)
- self-harm (2)
- shock waves (2)
- stars: activity (2)
- stars: black holes (2)
- stars: chemically peculiar (2)
- stars: distances (2)
- stars: kinematics and dynamics (2)
- stars: winds (2)
- sunspots (2)
- techniques: image processing (2)
- trade-offs (2)
- turbulence (2)
- ultraviolet: galaxies (2)
- 2-oxazoline (1)
- 3-BrPA (1)
- 30S subunit (1)
- 7924 (1)
- 7934 (1)
- 7959 (1)
- ABCE model (1)
- AKI (1)
- APETALA2 (1)
- Acacia plantation (1)
- Active Labor Market Policy (1)
- Actor-partner mediator model (1)
- Adaptive dynamics (1)
- Additive mixed models (1)
- Adolescence (1)
- Amedeo Guillet (1)
- Anatomy (1)
- Annaba (1)
- Anpassungsfähigkeit (1)
- Antifeminismus (1)
- Anwendungssystemarchitekturen (1)
- Aquatic ecosystems (1)
- Argasidae (1)
- Asia (1)
- Ask avoidance (1)
- Assays (1)
- Assistenzsysteme (1)
- Attention (1)
- Aufklärung (1)
- Auger decay (1)
- Ausbildung (1)
- Auswahlvorgehen (1)
- Automatisierung (1)
- Auxin (1)
- Auxin transport (1)
- B8 fibroblasts (1)
- BEI (1)
- BL Lacertae objects: general (1)
- BL Lacertae objects: individual: 1ES 2322-409 (1)
- BL Lacertae objects: individual: Mrk501 (1)
- Bats (1)
- Bayesian hierarchical modeling (1)
- Berühren (1)
- Bewertung (1)
- Big Five (1)
- Bildung (1)
- Bildungsgerechtigkeit (1)
- Bilingual aphasia (1)
- Biofilms (1)
- Biographie (1)
- Biological Assay (1)
- Brachionus calyciflorus (1)
- Brandenburg (Kfstm.) (1)
- Bryophyte (1)
- CAM (1)
- CCM (1)
- CKD (1)
- CO2 emissions (1)
- CO₂-Fußabdruck (1)
- Capsella (1)
- Carbon cycling (1)
- Carbonate contourite drift (1)
- Cardiomyocyte proliferation (1)
- Carl Muecke (1)
- Cartography (1)
- Caspar Schmalkalden (1)
- Categorization (1)
- Cattaneo equation (1)
- Charitable giving (1)
- Chemeron Formation (1)
- Chile (1)
- Chinese American (1)
- Chlorenchyma (1)
- Chlorophyll (1)
- Chronic heart failure (1)
- Classifiers (1)
- Climate change (1)
- Coleoptera (1)
- Color (1)
- Common Integrated Risk Analysis Model (CIRAM) (1)
- Competency Traps (1)
- Convergent validity (1)
- Coreference (1)
- Coronary artery disease (1)
- Correlations (1)
- Cross-linguistic (1)
- Crowdsourcing (1)
- Cue-based retrieval (1)
- Cultural identity compatibility (1)
- DFT (1)
- DPP-4 (1)
- DPP-4 inhibitors (1)
- DUF300 proteins (1)
- De Rham complex (1)
- Deutsches Reich (1)
- Dezentrale Liniensteuerung (1)
- Diabetes (1)
- Difference-in-Differences (1)
- Diffusion models (1)
- Digitale Plattformen (1)
- Digitalisierung (1)
- Discounting (1)
- Discounting inventory (1)
- Discriminant validity (1)
- Displacement Forecasting (1)
- E-DSGE (1)
- EARLY STARVATION1 (1)
- ERP (1)
- ERP system (1)
- ERP-Auswahl (1)
- ERP-Systeme (1)
- Eccentricity (1)
- Edge-Gateway (1)
- Elapidae (1)
- Electrochemical impedance (1)
- Embodied cognition (1)
- Emergency Response Coordination Centre (ERCC) (1)
- Employee Training (1)
- Endothelial integrity (1)
- Environmental gradients (1)
- Eros (1)
- Escherichia coli (1)
- Eubacterium ramulus (1)
- Evidenzbasierte Versorgung (1)
- Executive-legislative relations (1)
- Experiment (1)
- Exploratory and confirmatory analyses (1)
- Extremotolerant (1)
- Eye movements (1)
- Eye movements and reading (1)
- FAIR (1)
- FISH (1)
- FNR (1)
- Fabriksoftware (1)
- Facial mimicry (1)
- Fagus (1)
- Feature selection (1)
- Fertigungsumstrukturierung (1)
- Festung (1)
- Fixation location (1)
- Fluorescence screening (1)
- Forschung-Praxis-Kooperation (1)
- Fox H-functions (1)
- Franco (1)
- Franco-Prussian War (1)
- Francs-tireurs (1)
- Frauen (1)
- Frauenhass (1)
- Fraxinus (1)
- Friends (1)
- Frontex (1)
- Frontex Risk Analysis Network (FRAN) (1)
- Functional groups (1)
- GFLASSO (1)
- GHG Protocol (1)
- GLP-1 and SDF-1a (1)
- GPA (1)
- Galaxies: high-redshift (1)
- Galaxies: interactions (1)
- Galaxy: center (1)
- Galaxy: structure (1)
- Gene duplication (1)
- Generalstab (1)
- Geneva convention of 1864 (1)
- Geographie (1)
- German colonialism (1)
- German university teacher training (1)
- German-Australian entanglements (1)
- Germany (1)
- Gewalt (1)
- Glucose tolerance (1)
- Graphene derivates (1)
- Graphene oxide (1)
- Grimmia sp (1)
- H II regions (1)
- H3K4 methylation (1)
- HGT (1)
- HPLC (1)
- HSF (1)
- Haar system (1)
- Hanau (1)
- Health risk assessment (1)
- Heart development (1)
- Heart failure (1)
- Heart valve correction (1)
- Hertzsprung-Russell and colour-magnitude diagrams (1)
- Herzinsuffizienz (1)
- Herzklappenkorrektur (1)
- Hessen-Kassel (1)
- Heteroptera (1)
- High resolution (1)
- High-fat-sucrose-salt diet (1)
- Higher education (1)
- Hilbert Scales (1)
- Hill numbers (1)
- Himalaya (1)
- Hodge theory (1)
- Hospitalisation (1)
- Human Capital Investment (1)
- Human Capital Investments (1)
- Hydrenchyma (1)
- IOM (1)
- ISM: bubbles (1)
- ISM: general (1)
- ISM: jets and outflows (1)
- ISM: lines and bands (1)
- ISM: magnetic fields (1)
- ISO 14067 (1)
- Iberia (1)
- Imageability (1)
- Implementation (1)
- Incels (1)
- Incremental validity (1)
- Indigenous knowledges and ontologies (1)
- Individual school self-concept (1)
- Individualisierte Serialisierung (1)
- Industrie 4.0-Box (1)
- Industry 4.0 (1)
- Infinite-dimensional SDE (1)
- Informationspolitik (1)
- Ingenieurkorps (1)
- Institutions (1)
- Integrative taxonomy (1)
- Intelligence (1)
- Interaction effects (1)
- Interfacial capacitance (1)
- Internationale Kooperation (1)
- Inverse theory (1)
- Irradiation (1)
- Isla Vista (1)
- Israel (1)
- Italian East Africa (1)
- Italy (1)
- Ixodidae (1)
- Job Satisfaction (1)
- Job Search (1)
- Joint Inversion (1)
- KI (1)
- KI-basierte Produktionsplanung (1)
- KMU (1)
- Kartographie (1)
- Kernelization (1)
- Klassifikationsschema (1)
- Kognition (1)
- Kommunikation (1)
- Kompetenzfalle (1)
- Kooperation (1)
- Koronare Herzerkrankung (1)
- Kp index (1)
- Kriegsartikel (1)
- Kryptologie (1)
- Kugelmenschen (1)
- Kunststoffindustrie (1)
- Kursachsen (1)
- Labor Market Mobility (1)
- Land use (1)
- Landvermessung (1)
- Landwehr (1)
- Language acquisition (1)
- Language production (1)
- Latent change model (1)
- Leaf shape (1)
- Lebensqualität (1)
- Lehrkräftebildung (1)
- Leopard cat (1)
- Lernen (1)
- Lernfabrik (1)
- Liebe (1)
- Linguistics (1)
- LumiraDx INR Test (1)
- LumiraDx Platform (1)
- M37 (NGC2099) (1)
- MALDI-TOF-MS (1)
- MES (1)
- MPNST (1)
- Machine learning (1)
- Magellanic Cloud (1)
- Maiella Mountains (1)
- Manager Decisions (1)
- Manosphere (1)
- Maternal folate treatment (1)
- Meat (1)
- Mechanotransduction (1)
- Meditation (1)
- Menger algebra of rank n (1)
- Mesostigmata (1)
- Microbial ecology (1)
- Microplastics (MP) (1)
- Militärgerichtsbarkeit (1)
- Militärgeschichte (1)
- Militärstrafrecht (1)
- Militärökonomie (1)
- Mittag-Leffler functions (1)
- Mixed models (1)
- Molecularly imprinted polymers (1)
- Mood (1)
- Morphological evolution (1)
- Morphology (1)
- Mysticism (1)
- N400 (1)
- NF1 (1)
- NIA1 (1)
- NIA2 (1)
- NSU (1)
- Naja guineensis sp nov. (1)
- Naja melanoleuca (1)
- Naja savannula sp nov. (1)
- Navier-Stokes equations (1)
- Nepal (1)
- Neumann problem (1)
- Niederlande (1)
- Non-Markov drift (1)
- Non-parametric curve estimation (1)
- Non-regular drift (1)
- Nordic catchments (1)
- Normierung (1)
- Number interference (1)
- Number-size congruency effect (1)
- Numerical cognition (1)
- Nycteribiidae (1)
- Offizierskorps (1)
- Open innovation (1)
- Orfento Formation (1)
- Organizational Learning (1)
- PA28 (1)
- PAS 2050 (1)
- PCK (1)
- PHQ-4 score (1)
- PTH (1)
- Pact on Migration and Asylum (1)
- Paired comparison (1)
- Paleoclimate (1)
- Paleolimnology (1)
- Parafoveal (1)
- Paternal programming (1)
- Peer cultural socialisation (1)
- Philologie (1)
- Phonetics (1)
- Phonology (1)
- Phylogeny (1)
- Phytohormone (1)
- Plant development (1)
- Plant performance (1)
- Plattform Ökosystem (1)
- Plio-Pleistocene (1)
- Pliocene (1)
- Police (1)
- Policy Reform (1)
- Politics of childhood (1)
- Polizei (1)
- Population viability analysis (1)
- Post mortem chemistry (1)
- Potenziale (1)
- Precession (1)
- Predictive models (1)
- Preußen (1)
- Probability distributions (1)
- Professional Services Unternehmen (1)
- Professional knowledge (1)
- Provenance (1)
- Prozessintegration (1)
- Prozesswissen (1)
- Psycholinguistic models (1)
- Psychosocial distress (1)
- Psychosozialer Distress (1)
- Psychotherapie (1)
- QTL (1)
- Quality management (1)
- Quality of life (1)
- Quercus (1)
- RNA Imaging (1)
- RNA in situ hybridization (1)
- ROCK (1)
- RPA (1)
- Rationality (1)
- Reafference principle (1)
- Rechtsextremismus (1)
- Rechtsterrorismus (1)
- Reddit (1)
- Reglement (1)
- Regression splines (1)
- Relative clause (1)
- Remote patient management (1)
- Repeated request (1)
- Right-Wing Terrorism (1)
- Risk Attitudes (1)
- Robotic Process Automation (1)
- RsgA (1)
- Russian (1)
- Russia’s invasion of Ukraine (1)
- SDS-PAGE (1)
- SEC-HPLC (1)
- SMEs (1)
- STM (1)
- Sachsen (1)
- Sachsen-Gotha (1)
- Sarcomere (1)
- School (1)
- Schottky junction (1)
- Schweden (1)
- Search Frictions (1)
- Search Heuristics (1)
- Second World War (1)
- Seismic noise (1)
- Seismicity and tectonics (1)
- Semantic preview benefit (1)
- Sentence comprehension (1)
- Sentence processing (1)
- Sexismus (1)
- Shewanella (1)
- Similarity-based interference (1)
- Siphonaptera (1)
- Size-weight illusion (1)
- Small (1)
- Social school self-concept (1)
- Sokrates (1)
- Soldatenhandel (1)
- Southeast Asia (1)
- Spain (1)
- Spatial-numerical (1)
- Specific entropy (1)
- Spionage (1)
- Sprache (1)
- Stage-based model (1)
- Stages of Concern (1)
- Start-Up Subsidies (1)
- Statistical inverse problem (1)
- Storage cost (1)
- Streblidae (1)
- Subjective well-being (1)
- Suchheuristiken (1)
- Sun: corona (1)
- Sun: faculae, plages (1)
- Sun: filaments (1)
- Sun: infrared (1)
- Sun: magnetic fields (1)
- Sun: photosphere (1)
- TTR (1)
- Tasks (1)
- Techniques: imaging spectroscopy (1)
- Telemonitoring (1)
- Text comprehension (1)
- Tikhonov regularization (1)
- Time-resolved crystallography (1)
- Trabeculation (1)
- Training (1)
- Transient receptor potential channels (1)
- Trinkgelage (1)
- Truppenexporte (1)
- Tupaia (1)
- Turkish minority (1)
- Turkish-German bilingualism (1)
- UNHCR (1)
- UV irradiation (1)
- Ultraviolet: ISM (1)
- Unintended Consequence (1)
- Universitätsschule (1)
- Validation (1)
- Variation (1)
- Variational principle (1)
- Verhaltensänderung (1)
- Visual world paradigm (1)
- Viverridae (1)
- Vulnerable communities (1)
- Weisheit (1)
- Weiterbildung (1)
- Western Central Africa (1)
- William James (1)
- Wissenstransfer (1)
- Word recognition (1)
- Word segmentation (1)
- Work-related Training (1)
- Working memory (1)
- X-rays : stars (1)
- X-rays: individuals: Circinus X-1 (1)
- X-rays: individuals: GRS 1915+105 (1)
- X-rays: individuals: V4641 Sgr (1)
- X-rays: individuals: Vela Jr (RX J08520-4622) (1)
- X-rays: stars (1)
- Zea mays (1)
- abstract concepts (1)
- academic achievement (1)
- accretion, accretion disks (1)
- acid sphingomyelinase (1)
- action problems (1)
- activity (1)
- activity - sun (1)
- acute kidney injury (1)
- acute renal failure (1)
- adaptability (1)
- addenda (1)
- adipose tissue (1)
- adsorption (1)
- affect (1)
- age of acquisition (1)
- age-appropriate competence development (1)
- aging (1)
- agreement attraction (1)
- algebra of rank n (1)
- algorithms (1)
- anaerobic respiration (1)
- analysis - techniques (1)
- and tissue-specificity (1)
- animal movement (1)
- animal personality (1)
- anti-gender (1)
- anti-infective (1)
- aphasia treatment (1)
- application system architectures (1)
- appropriateness (1)
- arctic tundra (1)
- artificial intelligence (1)
- assembly (1)
- assembly factor (1)
- assessment (1)
- assistance systems (1)
- associations (1)
- astroparticle physic (1)
- atmosphere - sun (1)
- authority (1)
- automatic chambers (1)
- automation (1)
- autonomic nervous system (1)
- autotrophic respiration (1)
- basal area increment (1)
- beach sediments (1)
- beaver (1)
- behavioral economics (1)
- behaviour (1)
- benefits (1)
- benzimidazoles (1)
- benzodiazepines (1)
- best practices (1)
- beta diversity (1)
- betriebliche Lernprozesse (1)
- bicameralism (1)
- bilingualism (1)
- bimodality (1)
- biodiversity exploratories (1)
- biogeography (1)
- biological robustness (1)
- biomimetic sensors (1)
- bioremediation (1)
- blended learning (1)
- block copolymers (1)
- bottleneck (1)
- brassinosteroid signaling (1)
- brown dwarfs (1)
- bulk heterojunctions (1)
- business process platform (1)
- business services (1)
- bystander (1)
- calcium (1)
- carbon emissions (1)
- carbon flows (1)
- carbon pricing (1)
- cardiovascular rehabilitation (1)
- cataclysmic variables (1)
- catalogues (1)
- catechol (1)
- cationic ring-opening polymerization (1)
- cell (1)
- cell cycle (1)
- ceramide (1)
- change of behavior (1)
- charge localisation (1)
- child asylum-seekers (1)
- childhood (1)
- chloroplast ribosome (1)
- chromium (1)
- chromosphere - methods (1)
- civet oil (1)
- classical solution (1)
- classification scheme (1)
- climate (1)
- clinical nephrology (1)
- clinical supervision (1)
- cliquy tree (1)
- cluster analysis (1)
- cluster model (1)
- co-function network (1)
- coexistence (1)
- cognitive (1)
- cohomology (1)
- collective memory (1)
- colonialism (1)
- comets: general (1)
- comets: individual: 67P/Churyumov-Gerasimenko (1)
- communication (1)
- commuting (1)
- competition (1)
- complex I (1)
- complex emotions (1)
- computational biochemistry (1)
- computational linguistics (1)
- conceptual metaphor (1)
- confocal microscopy (1)
- conomics (1)
- constitutive androstane receptor (1)
- constrains (1)
- contact resistance (1)
- content (1)
- contextual constraint (1)
- contextual restriction (1)
- continuous time random walk (CTRW) (1)
- control body weight (1)
- conversation analysis (1)
- cooperation (1)
- copper immobilization (1)
- coronavirus 2019 (1)
- corpus linguistics (1)
- corrinoid-containing enzymes (1)
- cosmopolitanism and nationalism (1)
- costs (1)
- country (1)
- coupling function (1)
- cow-side assay (1)
- critical period for language (1)
- critical thermal maximum (1)
- cross-modal generalisation (1)
- crossover dynamics (1)
- cryptic species (1)
- crystallography (1)
- cultural identity (1)
- cultural minority youth (1)
- dark ages (1)
- dark ages, reionization (1)
- dark diversity (1)
- data analysis (1)
- data assimilation (1)
- decision-making (1)
- decisions (1)
- decolorization (1)
- deep learning (1)
- deep neural networks (1)
- degenerative disc disease (1)
- delta drift (1)
- demographic change (1)
- density functional calculations (1)
- depression (1)
- depressive symptoms (1)
- derivation (1)
- design parameters (1)
- diabetic nephropathy (1)
- didactic concept (1)
- didactic framework (1)
- differential split-sample test (1)
- diffusion (1)
- digital platforms (1)
- displacement forecasting (1)
- dissociative electron attachment (1)
- dndBCDE (1)
- domain purity (1)
- donor-acceptor interfaces (1)
- double dividend (1)
- double flowers (1)
- drainage-based land use (1)
- drug discovery (1)
- dyadic coping (1)
- dyes (1)
- dynamic binary choice (1)
- earthquake (1)
- earthquakes (1)
- ecological speciation (1)
- education (1)
- electro-mechanically active polymers (1)
- electro-modulation microscopy (1)
- electromagnetic (1)
- electropolymerization (1)
- elephantid evolution (1)
- ellipsis identity (1)
- embodied cognition (1)
- emotional (1)
- empathy (1)
- enantiospecificity (1)
- end-stage kidney disease (1)
- endogenous growth (1)
- energetic offset (1)
- energy expenditure (1)
- energy gradients (1)
- engagement (1)
- ensemble prediction (1)
- enterprise system (1)
- environmental footprint (1)
- environmental gradient (1)
- environmental tax reform (1)
- enzyme induction (1)
- enzymology (1)
- epigenetics (1)
- equivalent-circuit (1)
- errata (1)
- eutrophication (1)
- evidence-based care (1)
- exact algorithms (1)
- exercise (1)
- experience; (1)
- expression (1)
- extensive margin (1)
- eye movements (1)
- fachliches Lernen (1)
- factory software (1)
- falling groundwater level (1)
- featured (1)
- femtosecond laser spectroscopy (1)
- fiber (1)
- fill factor (1)
- first contact (1)
- fitness gradient (1)
- flavanone (1)
- flavanonol (1)
- flavonoid (1)
- flood generating processes (1)
- flood risk (1)
- flood seasonality (1)
- flow cytometry (1)
- flower development (1)
- fluorescence (1)
- fluorescence image analysis (1)
- fluvial response (1)
- food prices (1)
- food security governance (1)
- forced migrants (1)
- forecast (1)
- foreign language (1)
- forest management (1)
- forest specialists (1)
- formation (1)
- fosfomycin (1)
- fossil placer (1)
- fractional dynamic equations (1)
- galaxies (1)
- galaxies: (1)
- galaxies: haloes (1)
- galaxies: individual: Antennae Galaxy (1)
- galaxies: individual: LMC (1)
- galaxies: individual: NGC 4038, NGC 4039 (1)
- galaxies: individual: PKS 0625-354 (1)
- galaxies: jets (1)
- gamma diversity (1)
- gamma rays: ISM (1)
- gamma-ray burst: general (1)
- gamma-rays: stars (1)
- gas-phase reactions (1)
- gender research (1)
- gender stereotype (1)
- gene flow (1)
- gene function prediction (1)
- gene sequencing (1)
- generalized diffusion equation (1)
- genome-wide association (1)
- gentrification (1)
- geochemistry (1)
- geometrical deformations (1)
- geophysics (1)
- global change (1)
- global climate governance (1)
- global warming potential (1)
- globular clusters: general (1)
- globular clusters: individual: 47 Tuc (1)
- globular clusters: individual: NGC 2808 (1)
- globular clusters: individual: NGC 6656 (1)
- globular clusters: individual: NGC5139 (1)
- glucan (1)
- glucose homeostasis (1)
- glucose metabolism (1)
- glycolysis (1)
- goal-setting (1)
- governance (1)
- gravitational waves (1)
- habitat generalist (1)
- haptic feedback (1)
- hate crime (1)
- health (1)
- health communication (1)
- health complaints (1)
- heat stress (1)
- heat tolerance (1)
- heavy minerals (1)
- heterogeneity (1)
- heterotrophic respiration (1)
- high-dimensional fixed effects (1)
- higher education (1)
- historical ecology (1)
- hole (1)
- home office (1)
- homoeotic (1)
- homogenisation (1)
- horizontal innovation (1)
- housing market (1)
- human activity (1)
- human capital (1)
- human immunodeficiency virus (1)
- humanitarianism; (1)
- hybrid capture (1)
- hybrid materials (1)
- hydrogen (1)
- hydrological modelling (1)
- hydrology (1)
- hypothalamus (1)
- image processing (1)
- implicit theory of intelligence (1)
- incidental parameter bias correction (1)
- incoherent light (1)
- independency tree (1)
- individual (1)
- individual niche specialization (1)
- individual: CU Vir (1)
- inducible defence (1)
- industrial innovation (1)
- industrielle Innovationen (1)
- industry 4.0 (1)
- inflammation (1)
- inflection (1)
- influenza (1)
- infrared: galaxies (1)
- infrared: general (1)
- infrared: planetary systems (1)
- inheritance of (1)
- innocence (1)
- instabilities (1)
- instrumentation: adaptive optics (1)
- insulin resistance (1)
- intake screening (1)
- intangible impacts (1)
- inter-organizational order (1)
- inter-organizational relations (1)
- interactional linguistics (1)
- interactions (1)
- intergalactic medium (1)
- intermediaries (1)
- international normalized ratio (1)
- international organizations (1)
- interpersonal relations (1)
- interstitial space fluid (1)
- intestinal bacteria (1)
- intraclass correlation (1)
- inverse micelles (1)
- iron regulation (1)
- iron-sulfur cluster (1)
- isotopic methods (1)
- kernel density estimation (1)
- kognitive Assistenzsysteme (1)
- labor productivity (1)
- labour migration (1)
- lake (1)
- land-use (1)
- language acquisition (1)
- language and aging (1)
- language change (1)
- large-scale assessment (1)
- large-scale structure of Universe (1)
- late Holocene (1)
- late bilinguals (1)
- learning environment (1)
- learning scenario for manufacturing (1)
- learning styles (1)
- levee en masse (1)
- life history (1)
- life satisfaction (1)
- lifespan (1)
- line: profiles (1)
- linear distance (1)
- linear term (1)
- lipid metabolism (1)
- lipid rafts (1)
- liver (1)
- liver toxicity (1)
- lncRNA (1)
- local convex hull (1)
- long-term use (1)
- low donor content (1)
- mRNA Quantification (1)
- macrosurfactants (1)
- mammoth (1)
- mathematics (1)
- matrix protein (1)
- measurement error (1)
- mechanosensing (1)
- menopause (1)
- meta-analysis (1)
- metabolic regulation (1)
- metabolomics (1)
- method comparison (1)
- method development (1)
- methods (1)
- methods: data analysis (1)
- methods: numerical (1)
- methylmercury (1)
- micelles (1)
- microRNA172 (1)
- microdialysis (1)
- microwave (1)
- military culture (1)
- military effectiveness (1)
- minimax convergence rates (1)
- minimum convex polygon (1)
- miscellaneous (1)
- mitochondrial DNA (1)
- mitochondrial respiration (1)
- mitogenome (1)
- mixed domains (1)
- mixtures (1)
- mobility (1)
- model error (1)
- model membranes (1)
- modelling (1)
- molybdenum cofactor (1)
- mouse (1)
- movement ecology (1)
- multi-layer systems (1)
- multicultural (1)
- multidiversity (1)
- multilevel models (1)
- mutants (1)
- myth of Franktireurkrieg (1)
- n-ary operation (1)
- n-ary term (1)
- naringenin (1)
- natural field experiment (1)
- neuropeptides (1)
- neurosemantics (1)
- nineteenth-century newspapers (1)
- nitrate assimilation (1)
- nitrogen deposition (1)
- nociception (1)
- non-Ricardian households (1)
- non-normality (1)
- nonfullerene acceptors (1)
- nonparametric statistics (1)
- novae (1)
- novae, cataclysmic variables (1)
- nucleobase (1)
- nutritional factors (1)
- obesity (1)
- oil palm plantation (1)
- older people (1)
- omics (1)
- open clusters and associations: individual: (1)
- open science (1)
- ophenylenediamine (1)
- optimal trait (1)
- oral anticoagulation (1)
- organic field-effect transistors (1)
- organic photovoltaics (1)
- organisational change (1)
- organizational fields (1)
- osmosensing (1)
- osteoarthritis (1)
- oxidative stress (1)
- p53 (1)
- palaeogenome (1)
- paleoceanography (1)
- paleoclimate (1)
- paleogenomics (1)
- paleohydrology (1)
- palygorskite (1)
- pandemic (1)
- parameterized complexity (1)
- parent-adolescent cultural conflict (1)
- parliamentary government (1)
- partial Menger (1)
- participatory research (1)
- particle filter (1)
- percolation threshold (1)
- personality (1)
- phagotrophy (1)
- pharmacodynamics (1)
- phase approximation (1)
- phase dynamics (1)
- phase response curve (1)
- phenolic acid (1)
- phenotypic plasticity (1)
- phenprocoumon (1)
- phosphatidylserine (1)
- phosphoglucan (1)
- photocatalysts (1)
- photoexcited hole transfer (1)
- photoluminescence (1)
- photon statistics (1)
- photosphere (1)
- photovoltaic devices (1)
- phylotypes (1)
- phytodiversity (1)
- phytoplankton (1)
- planets and satellites: atmospheres (1)
- planets and satellites: composition (1)
- plant development (1)
- plasma membrane (1)
- plastics industry (1)
- platelets (1)
- platform ecosystem (1)
- platform-based business models (1)
- plattformbasierte Geschäftsmodelle (1)
- point process (1)
- point-of-care (1)
- political science (1)
- politics (1)
- polymer solar cells (1)
- population pharmacokinetics (1)
- population recovery (1)
- potentials (1)
- precipitation anomaly (1)
- predator-prey dynamics (1)
- predicting irregular migration (1)
- prediction (1)
- pregnane X-receptor (1)
- presidential government (1)
- prevention (1)
- priming (1)
- probability of target attainment (1)
- problem solving (1)
- process integration (1)
- process knowledge (1)
- processing (1)
- product carbon footprint (1)
- productivity slowdown (1)
- prograding lobes (1)
- prominences (1)
- proper motion (1)
- proper motions (1)
- prosodic boundary cues (1)
- prosody processing (1)
- psycholinguistic databases (1)
- psycholinguistics (1)
- psychotherapy (1)
- psychotherapy trainees (1)
- psychotherapy training (1)
- public relation (1)
- pulsars: individual (PSR J2032+4127, VER J2032+414, MAGIC J2032+4127) (1)
- pulsars: individual: LS V+22 25 (1)
- pulsars: individual: PSR B0833-45 (1)
- pulsars: individual: rho Ophiuchi A (1)
- quality manager (1)
- quality of life (1)
- quantitative migration prediction (1)
- quasars: absorption lines (1)
- quasars: individual: LBQS 0302-0018 (1)
- quasars: individual: LBQS 0302-0019 (1)
- quasars: individual: PKS1127-145 (1)
- r-hypersubstitution (1)
- r-term (1)
- radiation mechanisms: nonthermal (1)
- radiative forcing (1)
- rainforest crisis (1)
- randomized controlled intervention study (1)
- range distribution (1)
- rangeland (1)
- rapid eGFRcrea decline (1)
- reaction norm (1)
- reading (1)
- recombination (1)
- recombination losses (1)
- red meat (1)
- reductase (1)
- reductive dehalogenase (1)
- refugees (1)
- regional network (1)
- regression towards the mean (1)
- reionization (1)
- relational identity (1)
- relationship satisfaction (1)
- remanufacturing (1)
- removal subsidies (1)
- rent control (1)
- repeated measures (1)
- replication (1)
- representative longitudinal survey data (1)
- reproducing kernel Hilbert space (1)
- reproduction (1)
- research (1)
- research transparency (1)
- resonant X-ray scattering (1)
- retinoid-binding protein (1)
- revenue recycling (1)
- ribosome assembly (1)
- risk factors (1)
- risks (1)
- rotifers (1)
- salmon (1)
- saproxylic beetles (1)
- scenario modeling (1)
- school meanings related content knowledge (1)
- school motivation (1)
- science & technology (1)
- scopoletin (1)
- screen-printed (1)
- sea of islands (1)
- seasonal forecast (1)
- sediment yield (1)
- self-employment (1)
- self-isolation (1)
- self-perceived ability (1)
- semantic priming (1)
- semi-arid savanna (1)
- senescence (1)
- sensitive periods (1)
- sensitizers (1)
- sentence comprehension (1)
- sentence production (1)
- severe acute respiratory (1)
- shaking (1)
- shrub encroachment (1)
- shrub expansion (1)
- siege of Paris 1870 (1)
- signals (1)
- silviculture (1)
- skewed distributions (1)
- sluicing (1)
- smFISH (1)
- small mammals (1)
- small molecules (1)
- social capital (1)
- social identity complexity (1)
- sociality (1)
- sociolinguistics (1)
- soil CO2 sampling tubes (1)
- solar wind (1)
- space use (1)
- spatial grain (1)
- spatial semantics (1)
- specialisation (1)
- species accumulation curve (1)
- species divergence (1)
- species niche (1)
- species richness (1)
- species turnover (1)
- spectroscopic - astronomical databases (1)
- speech perception (1)
- stakeholders (1)
- standards (1)
- star navigation (1)
- starch granule surface (1)
- starch phosphorylation (1)
- stars (1)
- stars : Wolf-Rayet (1)
- stars : atmospheres (1)
- stars : early-type (1)
- stars : evolution (1)
- stars : individual : xi Per (1)
- stars : individual : zeta Oph (1)
- stars : individual : zeta Ori (1)
- stars : individual : zeta Pup (1)
- stars : mass-loss (1)
- stars : winds, outflows (1)
- stars: AGB and post-AGB (1)
- stars: early-typeP (1)
- stars: emission-line, Be (1)
- stars: horizontal branch (1)
- stars: individual (MT91 213) (1)
- stars: individual: Feige 46 (1)
- stars: individual: HD 137366 (1)
- stars: individual: HD 93129A (1)
- stars: individual: LP 40-365 (1)
- stars: individual: PG 1610+062 (1)
- stars: individual: SMC AB 6 (1)
- stars: low-mass (1)
- stars: neutron (1)
- stars: oscillations (1)
- stars: solar-type (1)
- stars: variables: general (1)
- starvation (1)
- stellar content (1)
- storage (1)
- stream (1)
- streamflow (1)
- struvite (1)
- student achievement (1)
- study (1)
- subdiffusion (1)
- subject-oriented learning (1)
- subjective (1)
- sulfoxide (1)
- sun (1)
- superdiffusion and (1)
- supergiants (1)
- superluminescent diodes (1)
- supernovae: general (1)
- superposition of n-ary operations and n-ary (1)
- supervisory strategies (1)
- susicidal ideation (1)
- sustainability (1)
- switching function (1)
- syndrome coronavirus 2 (1)
- synthesis (1)
- systematics (1)
- systems (1)
- systems biology (1)
- teaching (1)
- teaching and learning (1)
- techniques: high angular resolution (1)
- telegrapher's equation (1)
- telemetry (1)
- temperate forests (1)
- temperature (1)
- terms (1)
- terms-of-trade effects (1)
- the Consensus Model (1)
- therapeutic competence (1)
- thermokarst (1)
- thin-film actuators (1)
- threshold (1)
- threshold voltages (1)
- time-resolved X-ray probing (1)
- tonoplast (1)
- tracking data (1)
- trade (1)
- trade policy (1)
- training (1)
- trait emotional intelligence (1)
- transcriptional memory (1)
- transfusion-related acute lung injury (1)
- transient spectroscopy (1)
- translation (1)
- transnational governance arrangements (1)
- tree-ring analysis (1)
- trend (1)
- triazole fungicides (1)
- tropical peatland (1)
- trust (1)
- type 2 diabetes (1)
- tyrosinase (1)
- uncertainty quantification (1)
- unilateral climate policy (1)
- vacuole integrity (1)
- vagal sympathetic activity (1)
- vegetation change (1)
- victimization (1)
- vinylidenefluoride(VDF)-based polymers (1)
- virtual reality (1)
- visions of democracy (1)
- vitamin (1)
- vitamin B-12 (1)
- vitamin K antagonist therapy (1)
- vocational training (1)
- war (1)
- waste reuse (1)
- water dikinase (1)
- waves (1)
- wayfinding (1)
- welfare (1)
- wh-in-situ (1)
- wh-movement (1)
- wh-questions (1)
- word process (1)
- words as social tools (1)
- ökologischer Fußabdruck (1)
- абстрактные концепты (1)
- воплощенное познание (1)
- гидрология (1)
- глубокие нейронные сети (1)
- глубокое обучение (1)
- концептуальная метафора (1)
- машинное обучение (1)
- моделирование (1)
- нейросемантика (1)
- пространственная семантика (1)
- психолингвистическая база данных (1)
- слова как социальные инструменты (1)
Institute
- Institut für Physik und Astronomie (124)
- Institut für Biochemie und Biologie (70)
- Institut für Geowissenschaften (38)
- Department Psychologie (22)
- Fachgruppe Betriebswirtschaftslehre (21)
- Extern (18)
- Center for Economic Policy Analysis (CEPA) (17)
- Fachgruppe Volkswirtschaftslehre (17)
- Department Linguistik (16)
- Institut für Mathematik (12)
The intermediate He-enriched hot subdwarf star Feige 46 was recently reported as the second member of the V366 Aqr (or He-sdOBV) pulsating class. Feige 46 is very similar to the prototype of the class, LS IV-14 degrees 116, not only in terms of pulsational properties, but also in terms of atmospheric parameters and kinematic properties. LS IV-14 degrees 116 is additionally characterized by a very peculiar chemical composition, with extreme overabundances of the trans-iron elements Ge, Sr, Y, and Zr. We investigate the possibility that the similarity between the two pulsators extends to their chemical composition. We retrieved archived optical and UV spectroscopic observations of Feige 46 and performed an abundance analysis using model atmospheres and synthetic spectra computed with TLUSTY and SYNSPEC. In total, we derived abundances for 16 elements and provide upper limits for four additional elements. Using absorption lines in the optical spectrum of the star we measure an enrichment of more than 10 000x solar for yttrium and zirconium. The UV spectrum revealed that strontium is equally enriched. Our results confirm that Feige 46 is not only a member of the now growing group of heavy metal subdwarfs, but also has an abundance pattern that is remarkably similar to that of LS IV-14 degrees 116.
Rotating stellar convection transports angular momentum towards the equator, generating the characteristic equatorial acceleration of the solar rotation while the radial flux of angular momentum is always inwards. New numerical box simulations for the meridional cross-correlation < u(theta)u(phi)>, however, reveal the angular momentum transport towards the poles for slow rotation and towards the equator for fast rotation. The explanation is that for slow rotation a negative radial gradient of the angular velocity always appears, which in combination with a so-far neglected rotation-induced off-diagonal eddy viscosity term nu(perpendicular to) provides "antisolar rotation" laws with a decelerated equator Similarly, the simulations provided positive values for the rotation-induced correlation < u(r)u(theta)>, which is relevant for the resulting latitudinal temperature profiles (cool or warm poles) for slow rotation and negative values for fast rotation. Observations of the differential rotation of slowly rotating stars will therefore lead to a better understanding of the actual stress-strain relation, the heat transport, and the underlying model of the rotating convection.
The human intestinal anaerobe Eubacterium ramulus is known for its ability to degrade various dietary flavonoids. In the present study, we demonstrate the cleavage of the heterocyclic C-ring of flavanones and flavanonols by an oxygen-sensitive NADH-dependent reductase, previously described as enoate reductase, from E. ramulus. This flavanone- and flavanonol-cleaving reductase (Fcr) was purified following its heterologous expression in Escherichia coli and further characterized. Fcr cleaved the flavanones naringenin, eriodictyol, liquiritigenin, and homoeriodictyol. Moreover, the flavanonols taxifolin and dihydrokaempferol served as substrates. The catalyzed reactions were stereospecific for the (2R)-enantiomers of the flavanone substrates and for the (25,35)-configured flavanonols. The enantioenrichment of the nonconverted stereoisomers allowed for the determination of hitherto unknown flavanone racemization rates. Fcr formed the corresponding dihydrochalcones and hydroxydihydrochalcones in the course of an unusual reductive cleavage of cyclic ether bonds. Fcr did not convert members of other flavonoid subclasses, including flavones, flavonols, and chalcones, the latter indicating that the reaction does not involve a chalcone intermediate. This view is strongly supported by the observed enantiospecificity of Fcr. Cinnamic acids, which are typical substrates of bacterial enoate reductases, were also not reduced by Fcr. Based on the presence of binding motifs for dinucleotide cofactors and a 4Fe-4S cluster in the amino acid sequence of Fcr, a cofactor-mediated hydride transfer from NADH onto C-2 of the respective substrate is proposed. IMPORTANCE Gut bacteria play a crucial role in the metabolism of dietary flavonoids, thereby contributing to their activation or inactivation after ingestion by the human host. Thus, bacterial activities in the intestine may influence the beneficial health effects of these polyphenolic plant compounds. While an increasing number of flavonoid-converting gut bacterial species have been identified, knowledge of the responsible enzymes is still limited. Here, we characterized Fcr as a key enzyme involved in the conversion of flavonoids of several subclasses by Eubacterium ramulus, a prevalent human gut bacterium. Sequence similarity of this enzyme to hypothetical proteins from other flavonoid-degrading intestinal bacteria in databases suggests a more widespread occurrence of this enzyme. Functional characterization of gene products of human intestinal microbiota enables the assignment of metagenomic sequences to specific bacteria and, more importantly, to certain activities, which is a prerequisite for targeted modulation of gut microbial functionality.
We report the discovery of three stars that, along with the prototype LP 40-365, form a distinct class of chemically peculiar runaway stars that are the survivors of thermonuclear explosions. Spectroscopy of the four confirmed LP 40-365 stars finds ONe-dominated atmospheres enriched with remarkably similar amounts of nuclear ashes of partial O- and Si-burning. Kinematic evidence is consistent with ejection from a binary supernova progenitor; at least two stars have rest-frame velocities indicating they are unbound to the Galaxy. With masses and radii ranging between 0.20 and 0.28M(circle dot) and between 0.16 and 0.60 R-circle dot, respectively, we speculate these inflated white dwarfs are the partly burnt remnants of either peculiar Type Iax or electron-capture supernovae. Adopting supernova rates from the literature, we estimate that similar to 20 LP 40-365 stars brighter than 19 mag should be detectable within 2 kpc from the Sun at the end of the Gaia mission. We suggest that as they cool, these stars will evolve in their spectroscopic appearance, and eventually become peculiar O-rich white dwarfs. Finally, we stress that the discovery of new LP 40-365 stars will be useful to further constrain their evolution, supplying key boundary conditions to the modelling of explosion mechanisms, supernova rates, and nucleosynthetic yields of peculiar thermonuclear explosions.
The Kp index is a measure of the midlatitude global geomagnetic activity and represents short-term magnetic variations driven by solar wind plasma and interplanetary magnetic field. The Kp index is one of the most widely used indicators for space weather alerts and serves as input to various models, such as for the thermosphere and the radiation belts. It is therefore crucial to predict the Kp index accurately. Previous work in this area has mostly employed artificial neural networks to nowcast Kp, based their inferences on the recent history of Kp and on solar wind measurements at L1. In this study, we systematically test how different machine learning techniques perform on the task of nowcasting and forecasting Kp for prediction horizons of up to 12 hr. Additionally, we investigate different methods of machine learning and information theory for selecting the optimal inputs to a predictive model. We illustrate how these methods can be applied to select the most important inputs to a predictive model of Kp and to significantly reduce input dimensionality. We compare our best performing models based on a reduced set of optimal inputs with the existing models of Kp, using different test intervals, and show how this selection can affect model performance.
Undisclosed desires
(2019)
Following decades of quality management featuring in higher education settings, questions regarding its implementation, impact and outcomes remain. Indeed, leaving aside anecdotal case studies and value-laden documentaries of best practice, current research still knows very little about the implementation of quality management in teaching and learning within higher education institutions. Referring to data collected from German higher education institutions in which a quality management department or functional equivalent was present, this article theorises and provides evidence for the supposition that the implementation of quality management follows two implicit logics. Specifically, it tends either towards the logic of appropriateness or, contrastingly, towards the logic of consequentialism. This study’s results also suggest that quality managers’ socialisation is related to these logics and that it influences their views on quality management in teaching and learning.
Context. Galactic globular clusters (GCs) are now known to host multiple populations displaying particular abundance variations. The different populations within a GC can be well distinguished following their position in the pseudo two-colors diagrams, also referred to as "chromosome maps". These maps are constructed using optical and near-UV photometry available from the Hubble Space Telescope (HST) UV survey of GCs. However, the chemical tagging of the various populations in the chromosome maps is hampered by the fact that HST photometry and elemental abundances are both only available for a limited number of stars. Aims. The spectra collected as part of the MUSE survey of globular clusters provide a spectroscopic counterpart to the HST photometric catalogs covering the central regions of GCs. In this paper, we use the MUSE spectra of 1115 red giant branch (RGB) stars in NGC 2808 to characterize the abundance variations seen in the multiple populations of this cluster. Methods. We used the chromosome map of NGC 2808 to divide the RGB stars into their respective populations. We then combined the spectra of all stars belonging to a given population, resulting in one high signal-to-noise ratio spectrum representative of each population. Results. Variations in the spectral lines of O, Na, Mg, and Al are clearly detected among four of the populations. In order to quantify these variations, we measured equivalent width differences and created synthetic populations spectra that were used to determine abundance variations with respect to the primordial population of the cluster. Our results are in good agreement with the values expected from previous studies based on high-resolution spectroscopy. We do not see any significant variations in the spectral lines of Ca, K, and Ba. We also do not detect abundance variations among the stars belonging to the primordial population of NGC 2808. Conclusions. We demonstrate that in spite of their low resolution, the MUSE spectra can be used to investigate abundance variations in the context of multiple populations.
The Baringo-Tugen-Barsemoi 2013 drillcore (BTB13), acquired as part of the Hominin Sites and Paleolakes Drilling Project, recovered 228 m of fluviolacustrine sedimentary rocks and tuffs spanning a similar to 3.29-2.56 Ma interval of the highly fossiliferous and hominin-bearing Chemeron Formation, Tugen Hills, Kenya. Here we present a Bayesian stratigraphic age model for the core employing chronostratigraphic control points derived from Ar-40/Ar-39 dating of tuffs from core and outcrop, Ar-40/Ar-39 age calibration of related outcrop diatomaceous units, and core magnetostratigraphy. The age model reveals three main intervals with distinct sediment accumulation rates: an early rapid phase from 3.2 to 2.9 Ma; a relatively slow phase from 2.9 to 2.7 Ma; and the highest rate of accumulation from 2.7 to 2.6 Ma. The intervals of rapid accumulation correspond to periods of high Earth orbital eccentricity, whereas the slow accumulation interval corresponds to low eccentricity at 2.9-2.7 Ma, suggesting that astronomically mediated climate processes may be responsible for the observed changes in sediment accumulation rate. Lacustrine transgression-regression events, as delineated using sequence stratigraphy, dominantly operate on precession scale, particularly within the high eccentricity periods. A set of erosively based fluvial conglomerates correspond to the 2.9-2.7 Ma interval, which could be related to either the depositional response to low eccentricity or to the development of unconformities due to local tectonic activity. Age calibration of core magnetic susceptibility and gamma density logs indicates a close temporal correspondence between a shift from high- to low-frequency signal variability at similar to 3 Ma, approximately coincident the end of the mid-Piacenzian Warm Period, and the beginning of the cooling of world climate leading to the initiation of Northern Hemispheric glaciation c. 2.7 Ma. BTB13 and the Baringo Basin records may thus provide evidence of a connection between high-latitude glaciation and equatorial terrestrial climate toward the end of the Pliocene.
Editorial
(2019)
A stellar census in globular clusters with MUSE: A spectral catalogue of emission-line sources
(2019)
Aims. Globular clusters produce many exotic stars due to a much higher frequency of dynamical interactions in their dense stellar environments. Some of these objects were observed together with several hundred thousand other stars in our MUSE survey of 26 Galactic globular clusters. Assuming that at least a few exotic stars have exotic spectra (i.e. spectra that contain emission lines), we can use this large spectroscopic data set of over a million stellar spectra as a blind survey to detect stellar exotica in globular clusters. Methods. To detect emission lines in each spectrum, we modelled the expected shape of an emission line as a Gaussian curve. This template was used for matched filtering on the di fferences between each observed 1D spectrum and its fitted spectral model. The spectra with the most significant detections of H alpha emission are checked visually and cross-matched with published catalogues. Results. We find 156 stars with H alpha emission, including several known cataclysmic variables (CV) and two new CVs, pulsating variable stars, eclipsing binary stars, the optical counterpart of a known black hole, several probable sub-subgiants and red stragglers, and 21 background emission-line galaxies. We find possible optical counterparts to 39 X-ray sources, as we detected H alpha emission in several spectra of stars that are close to known positions of Chandra X-ray sources. This spectral catalogue can be used to supplement existing or future X-ray or radio observations with spectra of potential optical counterparts to classify the sources.
The seven deadly sins of quality management: trade-offs and implications for further research
(2019)
Quality management in higher education is generally discussed with reference to commendable outcomes such as success, best practice, improvement or control. This paper, though, focuses on the problems of organising quality management. It follows the narrative of the seven deadly sins, with each ‘sin’ illustrating an inherent trade-off or paradox in the implementation of internal quality management in teaching and learning in higher education institutions. Identifying the trade-offs behind these sins is essential for a better understanding of quality management as an organisational problem.
The clinical benefits of rehabilitation in cardiovascular disease are well established. Among cardiovascular disease patients, however, patients with type 2 diabetes mellitus require a distinct approach. Specific challenges to clinicians and healthcare professionals in patients with type 2 diabetes include the prevalence of peripheral and autonomic neuropathy, retinopathy, nephropathy, but also the intake of glucose-lowering medication. In addition, the psychosocial wellbeing, driving ability and/or occupational status can be affected by type 2 diabetes. As a result, the target parameters of cardiovascular rehabilitation and the characteristics of the cardiovascular rehabilitation programme in patients with type 2 diabetes often require significant reconsideration and a multidisciplinary approach. This review explains how to deal with diabetes-associated comorbidities in the intake screening of patients with type 2 diabetes entering a cardiovascular rehabilitation programme. Furthermore, we discuss diabetes-specific target parameters and characteristics of cardiovascular rehabilitation programmes for patients with type 2 diabetes in a multidisciplinary context, including the implementation of guideline-directed medical therapy.
Fast and easy tests for quantifying fat-soluble vitamins such as vitamin E and vitamin A, as well as beta-carotene, in whole blood without a need to preprocess blood samples could facilitate assessment of the vitamin status of dairy cattle. The objective of this study was to validate a field-portable fluorometer/spectrophotometer assay for the rapid quantification of these vitamins in whole blood and plasma of dairy cows and calves. We measured the concentrations of vitamin E and beta-carotene in whole blood and plasma from 28 dairy cows and 11 calves using the iCheck test (Bio-Analyt GmbH, Teltow, Germany) and compared the results with the current analytical standard (HPLC) in 2 independent laboratories, one at the University of Potsdam (Germany) and at one at DSM Nutritional Products Ltd. (Kaiseraugst, Switzerland). For vitamin A, the HPLC measurements were done only in the laboratory in Germany. The whole-blood concentrations of vitamin E as determined by iCheck (blood-hematocritcorrected) ranged from 1.82 to 4.99 mg/L in dairy cows and 0.34 to 3.40 mg/L in calves. These findings were moderately correlated (R-2 = 0.66) with the values assessed by HPLC in dairy cattle (cows + calves). When calves were excluded, the correlation was higher (R-2 = 0.961). The beta-carotene and vitamin A values obtained by the reference method HPLC were highly correlated with the iCheck methods in whole blood (R-2 = 0.99 and 0.88, respectively). In plasma, we observed strong correlations between the concentrations assessed by iCheck and those of HPLC for vitamin E (R-2 = 0.97), beta-carotene (R-2 = 0.98), and vitamin A (R-2 = 0.92) in dairy cattle (cows + calves). For vitamin E, beta-carotene, and vitamin A, we compared the relationship between the differences obtained by the iCheck assay and the HPLC measurements, as well as the magnitude of measurements, using Bland-Altman plots to test for systematic bias. For all 3 vitamins, the differences values were not outside the 95% acceptability limits; we found no systematic error between the 2 methods for all 3 analytes.
Relationships between different measures of succulence and Crassulacean acid metabolism (CAM; defined here as nocturnal increases in tissue acidity) were investigated in leaves of ten species of Sansevieria under greenhouse conditions. CAM was found in seven of the ten species investigated, and CAM correlated negatively with leaf thickness and leaf hydrenchyma/chlorenchyma ratio. Similarly, CAM correlated negatively with leaf water content, but only when expressed on a fresh mass basis. CAM was not correlated with "mesophyll succulence", but weakly with leaf chlorophyll concentration. These results indicate that CAM is associated more with "all-cell succulence" and not with the amount of leaf hydrenchyma in the genus Sansevieria. The findings of this study emphasize the importance of defining the nature of "leaf succulence" in studies of photosynthetic pathways and leaf morphology. Evidence is also provided that CAM and succulence arose multiple times in the genus Sansevieria.
Phase reduction is a general tool widely used to describe forced and interacting self-sustained oscillators. Here, we explore the phase coupling functions beyond the usual first-order approximation in the strength of the force. Taking the periodically forced Stuart-Landau oscillator as the paradigmatic model, we determine and numerically analyse the coupling functions up to the fourth order in the force strength. We show that the found nonlinear phase coupling functions can be used for predicting synchronization regions of the forced oscillator.
We develop a technique for the multivariate data analysis of perturbed self-sustained oscillators. The approach is based on the reconstruction of the phase dynamics model from observations and on a subsequent exploration of this model. For the system, driven by several inputs, we suggest a dynamical disentanglement procedure, allowing us to reconstruct the variability of the system's output that is due to a particular observed input, or, alternatively, to reconstruct the variability which is caused by all the inputs except for the observed one. We focus on the application of the method to the vagal component of the heart rate variability caused by a respiratory influence. We develop an algorithm that extracts purely respiratory-related variability, using a respiratory trace and times of R-peaks in the electrocardiogram. The algorithm can be applied to other systems where the observed bivariate data can be represented as a point process and a slow continuous signal, e.g. for the analysis of neuronal spiking. This article is part of the theme issue 'Coupling functions: dynamical interaction mechanisms in the physical, biological and social sciences'.