Refine
Year of publication
- 2020 (78) (remove)
Document Type
- Review (78) (remove)
Keywords
- Anna Seghers (1)
- Bibliothek (1)
- Brownian diffusion (1)
- EM38DD (1)
- Energy metabolism (1)
- FGF21 (1)
- GDF15 (1)
- Informationsgesellschaft (1)
- Krieg und Literatur (1)
- Mitohormesis (1)
- Poetik (1)
- Skeletal muscle (1)
- Uncoupling proteins (1)
- anomalous diffusion (1)
- biotin sulfoxide reductase (1)
- catalysis (1)
- climate change (1)
- colluvium depth modelling (1)
- conservation (1)
- converting factor (1)
- cow's milk (1)
- crystal-structure (1)
- development goals (1)
- direct electron (1)
- dynamics (1)
- ecosystem services (1)
- electrical conductivity (1)
- electrical resistivity tomography (1)
- electromagnetic induction (1)
- electropolymerization (1)
- formate dehydrogenase (1)
- gate effect (1)
- health risks (1)
- human nutrition (1)
- in-vitro-synthesis (1)
- kinetic-theory (1)
- linear discriminant analysis (1)
- linear regression (1)
- models (1)
- molecularly imprinted polymers (1)
- molybdopterin synthase (1)
- moraine soil landscape (1)
- motion (1)
- n-oxide reductase (1)
- nanoparticles (1)
- nonergodicity (1)
- nutrient bioavailability (1)
- periplasmic nitrate reductase (1)
- plant drinks (1)
- redox marker (1)
- rhodobacter-capsulatus (1)
- rivers (1)
- statistics (1)
- subdiffusion (1)
- sustainable (1)
- transfer (1)
- water resources (1)
- wetlands (1)
- xanthine dehydrogenase (1)
Institute
- Öffentliches Recht (14)
- Historisches Institut (12)
- Vereinigung für Jüdische Studien e. V. (9)
- Institut für Germanistik (6)
- Institut für Philosophie (4)
- Strafrecht (4)
- Institut für Biochemie und Biologie (3)
- Institut für Jüdische Studien und Religionswissenschaft (3)
- MenschenRechtsZentrum (3)
- Bürgerliches Recht (2)
The biosynthesis of the molybdenum cofactor (Moco) is highly conserved among all kingdoms of life. In all molybdoenzymes containing Moco, the molybdenum atom is coordinated to a dithiolene group present in the pterin-based 6-alkyl side chain of molybdopterin (MPT). In general, the biosynthesis of Moco can be divided into four steps in in bacteria: (i) the starting point is the formation of the cyclic pyranopterin monophosphate (cPMP) from 5 '-GTP, (ii) in the second step the two sulfur atoms are inserted into cPMP leading to the formation of MPT, (iii) in the third step the molybdenum atom is inserted into MPT to form Moco and (iv) in the fourth step bis-Mo-MPT is formed and an additional modification of Moco is possible with the attachment of a nucleotide (CMP or GMP) to the phosphate group of MPT, forming the dinucleotide variants of Moco. This review presents an update on the well-characterized Moco biosynthesis in the model organism Escherichia coli including novel discoveries from the recent years.
Brownian motion and viscoelastic anomalous diffusion in homogeneous environments are intrinsically Gaussian processes. In a growing number of systems, however, non-Gaussian displacement distributions of these processes are being reported. The physical cause of the non-Gaussianity is typically seen in different forms of disorder. These include, for instance, imperfect "ensembles" of tracer particles, the presence of local variations of the tracer mobility in heteroegenous environments, or cases in which the speed or persistence of moving nematodes or cells are distributed. From a theoretical point of view stochastic descriptions based on distributed ("superstatistical") transport coefficients as well as time-dependent generalisations based on stochastic transport parameters with built-in finite correlation time are invoked. After a brief review of the history of Brownian motion and the famed Gaussian displacement distribution, we here provide a brief introduction to the phenomenon of non-Gaussianity and the stochastic modelling in terms of superstatistical and diffusing-diffusivity approaches.
Plans are currently being drafted for the next decade of action on biodiversity-both the post-2020 Global Biodiversity Framework of the Convention on Biological Diversity (CBD) and Biodiversity Strategy of the European Union (EU). Freshwater biodiversity is disproportionately threatened and underprioritized relative to the marine and terrestrial biota, despite supporting a richness of species and ecosystems with their own intrinsic value and providing multiple essential ecosystem services. Future policies and strategies must have a greater focus on the unique ecology of freshwater life and its multiple threats, and now is a critical time to reflect on how this may be achieved. We identify priority topics including environmental flows, water quality, invasive species, integrated water resources management, strategic conservation planning, and emerging technologies for freshwater ecosystem monitoring. We synthesize these topics with decades of first-hand experience and recent literature into 14 special recommendations for global freshwater biodiversity conservation based on the successes and setbacks of European policy, management, and research. Applying and following these recommendations will inform and enhance the ability of global and European post-2020 biodiversity agreements to halt and reverse the rapid global decline of freshwater biodiversity.
Die prinzipiellen Schwierigkeiten, die ein ebenso basaler wie kaum greif-und abgrenzbarer Gegenstand wie mentale Bilder mit sich bringt, geht Stephanie Jordans in ihrer philosophiegeschichtlich-literaturtheoretischen Monographie (zugl. RWTH Aachen, Habil.-Schrift, 2016) mit eineraspektreichen Problembeschreibung an. Neben der Darstellung zahlreicher Konzeptualisierungen und entsprechender literarischer Inszenie‐rungen bildhafter mentaler Repräsentation (ohne Traum, Halluzination,Vision) geht es im Kern darum, deren originäre Leistung als ein der Sprache komplementäres Erkenntnisorgan anzuerkennen. Im ersten Teil werden mit dem Fokus auf das Verhältnis von Wahrnehmung, Vorstellung, as Kuhn vorgestellt, gefolgt von fünf poetologisch-ästhetischen Ansätzen(Johann Jakob Bodmer/Johann Jacob Breitinger, Jean Paul, Johann Wolfgang von Goethe, Friedrich Theodor Vischer, Hans Blumenberg). Derdritte, systematische Teil verbindet in sechs Zugriffen (Wahrnehmungund Imagination, Sehen und Denken, Sagen und Zeigen, Unsagbarkeit,Nichtpropositionalität, Literarische Erkenntnis) die erarbeiteten historischen Modelle und Begriffe mit der aktuellen Bildwissenschaft: So ermögliche etwa die Unschärfe innerer Bilder deren anhaltende Verhandelbarkeit. Der vierte Teil zeigt anhand von fünf Erzähltexten (von E. T. A.Hoffmann bis Thomas Bernhard) die Funktion der Bildhaftigkeit vonmentalen Bildern für das Textverständnis. Der Band bietet einen fast en‐zyklopädischen, verschiedene Denkmodelle souverän in Beziehung setzenden und stets argumentativ fokussierten Überblick über das Schnittfeld von mentaler Repräsentation, Bildhaftigkeit und Sprache. Die verschiedenen Ansätze und Interpretationslinien werden ohne Komplexitätsverlust präzis und gut lesbar herausgearbeitet.