E-Dissertationen: Auflistung E-Dissertationen nach Titel
Anzeige der Dokumente 1720-1739 von 4163
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Hydrogeological characterization of the Upper Drâa catchment: Morocco
(2007)The Drâa valley located in the south of Morocco is a typical semi-arid area facing water scarcity problems. This Ph.D. thesis is part of the interdisciplinary research project IMPETUS (integrated approach to the efficient ... -
Hydrogeological conceptualisation of a tropical river catchment in a crystalline basement area and transfer into a numerical groundwater flow model: Case study for the Upper Ouémé catchment in Benin
(2008)The scope of this PhD thesis was the hydrogeological conceptualisation of the Upper Ouémé river catchment in Benin. The study area exceeds 14’500 km<sup>2</sup>; and is underlain by a crystalline basement. At this setting ... -
Hydrogeologie im Aguima Einzugsgebiet in Benin/Westafrika
(2004)Die vorliegende Arbeit handelt von der Analyse eines lokalen, hydrogeologischen Systems in den subhumiden, wechselfeuchten Randtropen im westafrikanischen Benin. Ziel war es, die hydrogeologischen und hydrochemischen ... -
Hydrogeology and water quality of wetlands in East Africa: case studies of a floodplain and a valley bottom wetland
(2017-10-10)This thesis is embedded in the interdisciplinary BMBF-funded project “GlobE – Wetlands in East Africa”, which focuses on reconciling future food production in East African wetlands with the concurrent environmental protection ... -
Hydroxyectoine Metabolism in Halomonas elongata
(2013-04-16)The marine Gram-negative bacterium <em>Halomonas elongata </em>is known to produce hydroxyectoine (8), a molecule that is valuable because of its broad spectrum of potential industrial applications. However, the widespread ... -
Hydroxylation of ectoine and synthetic ectoine derivatives via E. coli-mediated whole-cell biotransformation
(2021-06-07)The compatible solutes ectoine and hydroxyectoine are compounds mainly produced by halophilic organisms in order to prevent the loss of intracellular water when exposed to high osmotic pressure. Furthermore, these substances ... -
Die Hydroxylierung von Ectoin und Derivaten durch die Hydroxylase EctD aus Halomonas elongata
(2012-05-08)Kompatible Solute, von halophilen Mikroorganismen intrazellulär akkumulierte Substanzen zur Aufrechterhaltung des Turgors, sind in den letzten Jahren stark ins Interesse der biotechnologischen Forschung gerückt. Neben ihrer ... -
Hyperbolic and dispersive singular stochastic PDEs
(2021-07-19)The purpose of this thesis is to analyse nonlinear Schrödinger and wave equations which have been perturbed by a singular stochastic potential. The tools are, on the one hand, paracontrolled calculus, and, on the other ... -
Hyperspectral Imaging for Non-Invasive Characterization of Barley Resistances to Powdery Mildew
(2017-11-10)Determination and characterization of resistance reactions of crop plants against fungal pathogens are essential to select resistant genotypes. In breeding practice phenotyping of genotypes is realized by time consuming ... -
I) Characterization of LytR-CpsA-Psr enzymes and their role in Staphylococcus aureus cell wall formation
(2022-04-04)
II) Elucidating the mode of action of Cacaoidin, a novel class V lantibiotic Antibiotic resistance poses a serious threat to human health, demanding for the discovery and development of antibiotics with resistance-breaking properties. New antibiotics should be sought with the focus on novel chemistry ... -
Dnajc22 - a new susceptibility gene for salt-sensitive hypertension
(2015-06-10)Chaperones of the heat shock (HSP) 70 family mediate elementary funtions in a cell, such as folding, oligomerization, transport, or degradation of proteins. Their function is particularly needed when cells are exposed to ... -
In vitro Differentiation of Human Embryonic Stem Cells into Precursors of the Central Nervous System
(2006)Human embryonic stem cells with the property of pluripotency and unlimited selfrenewal are a promising tool for basic research and future transplantation strategies. Following the establishment of basic techniques of human ... -
In vitro Versuche zu den Wirkungen von Kupferverbindungen, Calciumhydroxid, Kaliumcarbonat und dem Alkylpolyglycosid Glucopon 215 CSUP auf Konidien und frühe Entwicklungsstadien von Venturia inaequalis
(2006)In der vorliegenden Arbeit wurden die Wirkungen verschiedener Kupferverbindungen sowie von Calciumhydroxid, Kaliumcarbonat und dem Alkylpolyglycosid Glucopon 215 CSUP auf Konidien und frühe Entwicklungsstadien des ... -
In vitro-Simulation der Funktion von Adhäsionsmolekülen im Prozess der hämatogenen Metastasierung von Tumorzellen und deren Inhibition durch Heparin
(2008)<p>Das Auftreten einer Metastasierung im Verlauf einer Krebserkrankung stellt die häufigste Todesursache für die meisten Patienten dar. Komplexe und zahlreiche Mechanismen vermitteln die Invasion von Zellen des Primärtumors ... -
Kitasatospora putterlickiae F18-98, ein neu isolierter Bakterienstamm aus der Rhizosphäre von Putterlickia verrucosa: Molekularbiologische und biochemische Untersuchungen zur Aminohydroxybenzoesäure-Biosynthese
(2003)Maytansinoide Naturstoffe sind potente Verbindungen mit antineoplastischer Aktivität, die aus Höheren Pflanzen, Bakterien und aus Moosen isoliert wurden. Die vorliegende Arbeit befasst sich mit dem biogenetischen Ursprung ... -
Paramecium biaurelia im niederfrequenten Magnetfeld: Auswirkungen auf das Schwimmverhalten, die cAMP-, cGMP- und 5`-Methoxytryptamin-Konzentrationen
(2001)<i>Paramecium biaurelia </i>wurde eingesetzt, um Effekte eines niederfrequenten Magnetfeldes (50 Hz) der Flußdichte 2 mT auf das Schwimmverhalten und die Signaltransduktion dieser Einzeller zu untersuchen. Modifikationen ... -
Identification and characterization of novel keratin associated proteins using a genetic interaction screening system
(2009-07-21)Keratins are an integral and important constituent of the epithelial cytoskeleton and protect epithelial cells against stress. In addition to their well-established function as cytoskeletal scaffolds in epithelia, recent ... -
Identification and characterization of novel ligands for purinergic P2X receptors
(2016-05-31)P2X receptors are ligand-gated ion channels activated by adenosine-5’-triphosphate (ATP). Seven different subtypes exist termed P2X1 - P2X7. P2X receptors exist as homo- or hetero-trimers. They show a ubiquitous expression, ... -
Identification and molecular characterisation of unknown genes involved in desiccation tolerance mechanisms in the resurrection plant Craterostigma plantagineum
(2014-11-06)The mechanisms that enable vegetative desiccation tolerance in the resurrection plant <i>Craterostigma plantagineum</i> are not fully understood. Recently, transcriptome data from this plant were obtained thus providing ... -
Identification and pharmacological characterization of nucleotide pyrophosphatase/phosphodiesterase-1 (NPP1) and -4 (NPP4) inhibitors
(2022-07-29)Ectonucleotidases are enzymes involved in different physiological functions and mainly in the regulation of purinergic signaling; in fact, they regulate the duration of purinergic receptor activation by catalyzing the ...
