E-Dissertationen: Browsing E-Dissertationen by Title
Now showing items 1381-1400 of 4071
-
Forest fragmentation and plant-pollinator interactions in Western Kenya
Bergsdorf, Thomas (2006)Rain forest fragmentation can affect plant-pollinator interactions and the reproductive success of plant species. Understanding these consequences is a crucial component of conserving vulnerable ecosystems.
In this ... -
A formalism for a consistent treatment of two-pion interactions in heavy meson decays
Ropertz, Stefan (2020-10-14)The best-established theory of particle physics up to now is the Standard Model. The theory of strong interactions called quantum chromodynamics (QCD) is a part of it. QCD leads to a wide range of phenomena, which still ... -
Formalization and Detection of Host-Based Code Injection Attacks in the Context of Malware
Barabosch, Thomas Felix (2018-10-31)The Host-Based Code Injection Attack (HBCIAs) is a technique that malicious software utilizes in order to avoid detection or steal sensitive information. In a nutshell, this is a local attack where code is injected across ... -
Formation and desorption of organic molecules: Resolving their emission in a prominent protostellar hot core and its outflow
Busch, Laura Ann (2024-03-15)Star-forming regions are known to be sites of a rich chemistry involving a variety of molecules. Interstellar complex organic molecules (COMs) are thereby of particular interest. They might act as precursors to larger and ... -
Formation and reactions of P-amino substituted Li/Cl phosphinidenoid complexes
Junker, Philip (2021-03-25)In this PhD Thesis results on the synthesis of P-amino substituted Li/Cl phosphinidenoid complexes are presented, with a particular focus on their reactivity in polar and apolar solvents and characteristic trapping reactions ... -
The formation and the stellar populations of dwarf galaxies
Dabringhausen, Jörg (2013-11-14)Ultra-compact dwarf galaxies (UCDs) are stellar systems with masses similar to those of dwarf elliptical galaxies (dEs), but with characteristic radii that are about a factor of ten smaller than those of dEs. One of the ... -
Formation mechanisms and aroma potential of 2-aminoacetophenone in boar fat
Gerlach, Christoph (2019-03-21)For decades the surgical castration of male piglets has been a common practice to avoid the incidence of boar taint within Europe. Boar taint is known as an offensive off-flavour occurring when meat of uncastrated boars ... -
The formation mechanisms of classical emission line stars
Hastings, Ben James (2023-10-10)Classical emission line stars are known fast rotators hosting a decretion disc in which emission lines are formed. Since their discovery in 1866, the formation mechanism of this class of stars has proved difficult to ... -
Formation Navigation and Relative Localisation of Multi-Robot Systems
Schneider, Frank E. (2013-05-07)When proceeding from single to multiple robots, cooperative action is one of the most relevant topics. The domain of robotic security systems contains typical applications for a multi-robot system (MRS). Possible scenarios ... -
Formation of low-mass helium white dwarfs orbiting binary millisecond pulsars
Istrate, Alina G. (2017-04-25)Millisecond pulsars (MSPs) belong to a class of radio pulsars characterized by high rotational spin rates and low magnetic fields. These neutron stars are believed to be the end-product of binary evolution, in which an old ... -
The Formation of the Concertina Pattern: Experiments, Analysis, and Numerical Simulations
Steiner, Jutta (2011-09-12)The concertina is a magnetization pattern observed in elongated thin-film elements of a soft-magnetic material during the switching-process by an external magnetic field. The almost periodic pattern consists of stripe-like ... -
Formationen von ,Fortschritt’: Die Entwicklung von Naturformaten im chemischen Raum (zwischen 1882 und 1919)
Lehmann, Klaus R. (2006)Die Rede von Fortschritt, die im chemischen Raum mit hoher Plausibilität wiederkehrend präsent ist, wird in der vorliegenden Untersuchung einer genauen Analyse unterzogen. Abseits von Überlegungen nach der Berechtigung, ... -
Formkörper, mechanische Eigenschaften und Verbundswerkstoffe amorpher Si/B/N/C-Keramiken sowie Studien zur Synthese von Phosphorcarbiden über Precursorrouten
Weisbarth, Ralf (2003)Amorphe Keramiken des Systems Si/B/N/C sind aufgrund ihrer hervorragenden mechanischen, chemischen und thermischen Eigenschaften von hohem Interesse. Ihre Anwendung war bislang jedoch auf die Herstellung von Fasern oder ... -
Formulierung von therapeutischen Oligonukleotiden mit PAMAM-Dendrimeren zur Aktivierung von Pattern Recognition Rezeptoren des angeborenen Immunsystems
Schwickart-Halbe, Anna Morlin (2019-05-03)Der ubiquitär exprimierte Immunrezeptor Retinoic Acid inducible Gene-I, kurz RIG-I, ist eine zytosolisch lokalisierte Helikase, die zur Detektion von pathogenen RNA-Viren befähigt ist. Als synthetischer Ligand ... -
Fortschritte bei der Totalsynthese von Lysolipin I: Studien zur Synthese des Südfragments
Voigt, Thomas (2019-05-27)Die vorliegende Doktorarbeit behandelt die Totalsynthese des aromatischen Polyketids Lysolipin I (1), einem potenten Antibiotikum aus dem Bakterium Streptomyces violaceoniger mit hoch modifizierten und einzigartigen ... -
A forward genetic approach to isolate Arabidopsis mutants altered in the regulation of the ALDH7B4 gene
Shafiq, Muhammad Rizwan (2016-09-30)The ALDH7B4 gene is a member of the ALDH super gene family which is known to be involved in stress tolerance, but the regulation of ALDHs was unknown. In the current studies, a forward genetic approach was used to propose ... -
Fossil record and new aspects of evolutionary history of Calcium biomineralization and plant waxes in fossil leaves
Malekhosseini, Mahdieh (2023-10-30)Calcium oxalate (CaOx) is one of the most common bio-minerals in extant plants. It plays a major role in a better understanding of plant taphonomy, environmental effects and evolution of calcium minerals in fossil plants. ... -
Fourier-Mukai transform for twisted sheaves
Martinez Navas, Hermes Jackson (2010-07-29)In this thesis we study Fourier-Mukai transforms between derived categories of twisted sheaves. We show that some well known results about the classification of surfaces under derived categories extend to the derived ... -
FOXO-abhängige Regulation von Immunabwehr und Lebensspanne in Drosophila melanogaster
Loch, Gerrit (2013-05-22)Die Regulation der Lebensspanne durch den Insulinsignalweg (IlS) ist evolutionär konserviert und wird vor allem in C. elegans, Drosophila und der Maus untersucht. Es ist eine Reihe von Genen bekannt, die Bestandteile ... -
An FPGA-based Sampling ADC for the Crystal Barrel Calorimeter
Müllers, Johannes Sebastian (2019-12-09)The CBELSA/TAPS experiment in Bonn investigates the excitation spectra of protons and neutrons through meson-photoproduction. With its ability to polarize the target nucleons and the incident photon beam, the experiment ...