E-Dissertationen: Browsing E-Dissertationen by Title
Now showing items 2988-3007 of 4070
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Radio Continuum of Galaxies with H2O-Megamaser-Disks
Kamali, Fateme (2019-11-08)Galaxies with H2O-megamaser-disks are low luminosity active galaxies where 22GHz H2O-maser emission is detected in their accretion disk surrounding the central supermassive black hole (SMBH). Furthermore, ... -
Radio Emission from Cosmic Ray Air Showers
Huege, Tim (2005)Charged particles with energies ranging from a few times 106 eV up to ≥ 1020 eV continuously impinge on the earth as so-called “cosmic rays”. Their study constitutes an important field of research in ... -
Radio emission from massive Young Stellar Objects and their surroundings: Characterization and feedback
Serrano Medina, Sac Nicte Xiomara (2020-10-12)Massive stars or high-mass stars dominate their galactic environments. They play a major role in the energy budget of galaxies and are essential in their evolution. However, high mass star formation is not fully understood, ... -
A radio view on the structural evolution of massive star-forming galaxies across cosmic time
Jiménez-Andrade, Eric Faustino (2020-03-06)It is not well understood what processes regulate the global formation of stars in galaxies throughout cosmic history. My work aims to measure the structural evolution of star-forming galaxies (SFGs), from the present back ... -
Radiometalle in der nuklearmedizinischen Anwendung: Prozessentwicklung und Translation in die klinische Routineanwendung
Meisenheimer, Michael (2022-04-20)In der vorliegenden Arbeit wurden mehrere Aspekte der täglichen radiopharmazeuti-schen Arbeit in der Nuklearmedizin bearbeitet. Der Fokus lag dabei auf der Translation von neuen Tracern aus der Forschung in die klinische ... -
Rainforest change analysis in Eastern Africa: A new multisourced, semi-quantitative approach to investigating more than 100 years of forest cover disturbance
Mitchell, Nicholas (2012-01-11)Forest change and disturbance of the past strongly influence the state of today’s forests and their biodiversity. However, knowledge of former forest landscape states can be subject to misunderstanding and the practical ... -
Raman Spectroscopy in Tandem with Chemometric Methods for the Characterization and Analysis of Quality and Shelf Life of Poultry Meat
Jaafreh, Sawsan (2020-08-27)Discrimination and classification of eight strains related to meat spoilage microorganisms commonly found in poultry meat were successfully carried out using two dispersive Raman spectrometers (Microscope and Portable ... -
Ramsey Imaging of Optical Dipole Traps: and its applications in building a 3D optical lattice
Ramola, Gautam (2021-09-20)In this work, I present the experimental realization of two-dimensional state-dependent transport of cesium atoms trapped in a three-dimensional optical lattice. Leveraging the ability to state-dependently transport atoms, ... -
Rapid astrocyte morphology changes during epileptogenesis in the rodent hippocampus
Anders, Stefanie (2017-05-15)In the past decades astrocytes have been demonstrated to play an important role in physiological brain processes but also neurodegenrative diseases. Their characteristic morphology allows them to closely contact neurons. ... -
Rapid semi-automated phenotypic assays for compound testing in patient-derived SPG4 neurons
Rehbach, Kristina (2018-12-05)Hereditary spastic paraplegia (HSP) is an inherited disease characterized by progressive spasticity in the lower limbs, caused by axonal degeneration of corticospinal motor neurons. Spastic paraplegia 4 (SPG4) is the most ... -
Rastertunnelmikroskopische Untersuchungen zur Selbstorganisation und molekularen Erkennung von Tetralactam-Makrocyclen auf Oberflächen
Kossev, Iordan Iordanov (2008)In dieser Arbeit wurden die Selbstorganisation von Tetralactam-Makrocyclen (TLM) auf Einkristalloberflächen sowie die molekulare Erkennung ausgewählter organischer Moleküle (4-amino-N-(4-trityl-phenyl)-benzamide, s.g. ... -
Rational global homotopy theory and geometric fixed points
Wimmer, Christian (2017-12-20)We use geometric fixed points to give a multiplicative algebraic model for rational global homotopy theory with respect to finite groups. It has infinite homological dimension and we study the formality of K-theory. ... -
Rationales Design und Aufbau DNA- und Fluorophor-markierter chemischer Sonden für G-Protein-gekoppelte Rezeptoren
Klapschinski, Tim Alexander (2021-03-04)Die vorliegende Dissertation umfasst die Synthese von Wirkstoff-Molekülen sowie fluoreszenzmarkierten und Oligonukleotid-gebundenen Wirkstoffen, die als Sonden zur Untersuchung von G-Protein-gekoppelten Rezeptoren (GPCRs), ... -
Ein Raum-Zeit Dünngitterverfahren zur Diskretisierung parabolischer Differentialgleichungen
Oeltz, Daniel (2006)In der vorliegenden Arbeit werden effiziente adaptive Diskretisierungsverfahren zur numerischen Lösung parabolischer Probleme vorgestellt. Hierbei gelingt es erstmalig, aufbauend auf speziellen diskreten Funktionenräumen, ... -
Raumproduktion durch städtebauliche Großprojekte als Instrumente der urbanen Transformation: Eine vergleichende Studie aus Köln
Ochsmann, Moritz (2023-11-21)Die Arbeit untersucht städtebauliche Großprojekte als einen spezifischen Modus der Stadtentwicklung im Sinne einer Produktion von Raum. Der Begriff „Raumproduktion“ geht dabei zurück auf die Theorie der Produktion des ... -
Ray-Tracing Simulations of Weak Gravitational Lensing
Hartlap, Jan (2009-07-02)Weak gravitational lensing, i.e. the distortion of images of distant galaxies due to the deflection of light rays in gravitational fields, is a powerful method to study the matter distribution in the Universe. It can be ... -
Räumliche Variabilität von Böden und Bodeneigenschaften auf dem Landwirtschaftlichen Versuchsgut Frankenforst im Pleiser Hügelland
Brinkmann, Johannes (2003)Im Zentrum dieser Arbeit stehen die Böden des Landwirtschaftlichen Versuchsgutes Frankenforst. Ihr Aufbau, ihre Verbreitung und räumliche Variabilität werden beschrieben und untersucht.
Zunächst wurde der Aufbau der ... -
Re-modelling of Mitochondrial Respiration in Arabidopsis during Drought
Fuchs, Philippe (2019-03-20)Drought can severely limit growth and productivity of plants. To limit water loss by transpiration, plant leaves respond by reducing stomatal aperture. This simultaneously impairs CO2 uptake and can reduce carbon ... -
Re-Os geochronology of base metal sulfides from cratonic mantle xenoliths: Case study from Somerset Island (Canada) and method development
Bragagni, Alessandro (2016-10-28)Robust and reliable time constraints are necessary to infer the formation and evolution of the cratonic mantle. Due to the large fractionation of Re from Os during mantle melting, the Re-Os decay system has been largely ... -
Reactivity of Surfaces with F Centers
Häfner, Michael Francesco (2023-08-24)This thesis is concerned with the theoretical investigation of the chemical and catalytic properties of the alkali halide F center. It explores how density functional theory (DFT) and statistical mechanics can be ...