E-Dissertationen: Browsing E-Dissertationen by Title
Now showing items 238-257 of 4071
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Aspects of Fibers, Fibrations and their Non-Compact Limits in F-theory and Topological String Theory
Schimannek, Thorsten (2018-07-13)This thesis presents results about F-theory and topological string theory on genus one fibered Calabi-Yau manifolds and their non-compact limits.
In the first part we work in the fiber based approach to F-theory and ... -
Aspects of Grand Unification in Higher Dimensions
Wingerter, Akin Achim (2005)We consider various aspects of string phenomenology in the context of heterotic orbifold constructions, where special emphasis is laid on the connection between GUT models in extra dimensions and their relation to string ... -
Aspekte der Inversion von Daten der Spektralen Induzierten Polarisation
Blaschek, Roland (2006)Diese Arbeit beschäftigt sich mit der Inversion von Daten der Spektral Induzierten Polarisation (SIP), die eine Erweiterung der Gleichstromgeoelektrik auf frequenzabhängige komplexwertige elektrische Widerst"ande darstellt. ... -
Assay Development, Identification, Optimization and Pharmacological Characterization of Inhibitors for Ecto-5′-nucleotidase (CD73)
Renn, Christian Philipp (2019-10-29)Extracellular ATP acts as a proinflammatory signaling molecule via G protein-coupled P2Y receptors and ATP-gated P2X ion channel receptors. ATP is hydrolyzed by ecto-nucleotidases: In a first step ecto-nucleoside triphosphate ... -
Assays and ligands for underexplored membrane proteins with potential as future drug targets
Gedschold, Robin Simon (2023-05-30)(noch nicht zugänglich / not yet accessible) -
Assembly Maps and Pseudoisotopy Functors
Pieper, Malte Mario (2019-05-03)In this thesis we show the existence of a stable, smooth pseudoisotopyfunctor and construct in the topological, piecewise linear, and smooth category a zig-zag of natural weak equivalences between the stable pseudoisotopyfunctor ... -
Assessment of virulence factors of a reservoir-borne SARS-related coronavirus by reverse genetics
Muth, Doreen (2013-01-04)The pandemic of the „Severe acute respiratory syndrome“ (SARS) at the end of 2002 caused more than 8000 infections and led to more than 800 deaths. The disease was soon associated with a new zoonotic coronavirus, the ... -
Assimilation of 3D Polarimetric Microphysical Retrievals with an Ensemble Kalman Filter in Germany
Reimann, Lucas (2023-11-06)Accurate quantitative precipitation forecasts (QPF) by numerical weather prediction (NWP) models are and remain of high societal interest, especially in times of global warming, which causes an increasing frequency and ... -
Associated Production of a Top Quark and a Z Boson in pp Collisions at √s = 13 TeV Using the ATLAS Detector
Cioară, Irina Antonela (2018-09-26)The production of a top quark in association with an Z boson is studied using 36.1 fb-1 of proton-proton collision data collected by the ATLAS experiment at the LHC in 2015 and 2016 at a centre-of-mass ... -
Assoziation von Herpes Simplex Virus Typ 1 Glykoprotein B und MHC Klasse II-Molekülen
Sievers, Elisabeth (2002)Das menschliche Immunsystem wird ständig durch virale Infektionen herausgefordert und setzt verschiedene Effektorreaktionen zur Abwehr ein. Obwohl die humanpathogenen Viren untereinander sehr verschieden sind, haben sie ... -
Astroglial connexins in adult neurogenesis: Mechanistic insight from mutant mice
Zhang, Jiong (2013-10-17)For astrocyte restricted connexin mutations/deletions the Cre/loxP system of site-specific recombination method was applied in this study. However, the Cre recombinase mediated gene deletion/activation is not free of ... -
Asymmetries of Radio Galaxies
Sohn, Bong Won (2003)In this work, we have studied the asymmetries of radio galaxies which are known to be related to the jet-asymmetry. They are the depolarization asymmetry and the spectral index asymmetry.
The first part of the thesis ... -
The “Atelocerata” – A vanishing hypothesis?: Molecular phylogeny of arthropods with focus on primary wingless hexapods
Meusemann, Karen A. (2012-09-05)Arthropods encompass more than three quarters of all described living species. Among arthropods, hexapods are the most abundant group and show an enormous diversity. To understand evolutionary processes of and within ... -
Atmospheric Downscaling using Multi-Objective Genetic Programming
Zerenner, Tanja (2017-10-10)Numerical models are used to simulate and to understand the interplay of physical processes in the atmosphere, and to generate weather predictions and climate projections. However, due to the high computational cost of ... -
An atom-sorting machine
Miroshnychenko, Yevhen (2006)In this thesis I present the realization of a technique for building strings of neutral atoms stored in a standing wave optical dipole trap with any desired interatomic separations atom by atom. As the first application ... -
Atomarer Transport und die Kontrolle von Transportresonanzen in optischen Gitterpotentialen
Grossert, Christopher (2015-07-29)Der Ratscheneffekt erlaubt es, eine gerichtete Teilchenbewegung mittels einer im zeitlichen Mittel ungerichteten Kraft zu erzeugen. Da die Transporteffizienz und die Transportrichtung eines klassischen Ratschensystems oft ... -
Atomic-resolution studies of In2O3-ZnO compounds on aberration-corrected electron microscopes
Yu, Wentao (2009-11-02)In this work, inversion domain microstructures of In2O3(ZnO)30 compounds were investigated by aberration-corrected Transmission Electron Microscopy (TEM). Both phase contrast and Z-contrast ...
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Atomic-scale friction study on Au(111) under electrochemical conditions
Park, Inhee (2022-09-14)In this study, lateral force microscopy (LFM) has been employed to investigate the frictional behavior on the surface of an electrode and the role of adsorbates, which correlates with interactions occurring at the interface. ... -
Atoms in the lowest Landau level of a synthetic erbium quantum Hall system
Röll, Roberto Vittorio (2022-11-30)This thesis presents results on an experimental realisation of a synthetic Landau like system using ultracold erbium atoms in a two-dimensional quantum Hall ribbon geometry. The scheme used to realise artificial magnetic ... -
Aufbau eines Experiments zur Rückstreupolarisationsmessung an ELSA
Becker, Maximilian (2015-05-05)Das BGO-OD-Experiment am Bonner Elektronenbeschleuniger ELSA wurde für die Detektion von geladenen Teilchen unter kleinen Winkeln in Vorwärtsrichtung bei der Photoproduktion von leichten Mesonen an einem flüssigen ...