E-Dissertationen: Auflistung E-Dissertationen nach Titel
Anzeige der Dokumente 2730-2749 von 4118
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Optimisation of the Total Oxidant Scavenging Capacity Assay and Application on Euterpe Oleracea Mart. (Açaí) Pulps and Seeds
Lichtenthäler, Ramona (2005)The antioxidant capacities of commercial and non-commercial pulps and seeds of the <i>Euterpe oleracea</i> Mart., Arecaceae, (açaí) palm were surveyed against peroxyl radicals, peroxynitrite and hydroxyl radicals. Analyses ... -
Optische Eigenschaften und Oberflächenreaktivität von Chalkopyrit
Thinius, Sascha (2020-01-20)In dieser Arbeit wurden die optischen Eigenschaften und die Oberflächenreaktivität von Chalkopyrit theoretisch auf der Grundlage akkurater quantenchemischer Methoden behandelt. Die hydro-metallurgische Kupfergewinnung ist ... -
Optische Spektroskopie von PTCDA auf Alkalihalogenidoberflächen: vereinzelte Moleküle und Monolagen
Müller, Mathias (2012-08-03)In dieser Dissertation wurden die strukturellen und optischen Eigenschaften organischer p-konjugierter Moleküle, die auf einer einkristallinen Oberfläche adsorbiert waren, untersucht. Die Untersuchungen sind damit relevant ... -
Optische Strahldiagnose an der Elektronen-Stretcher-Anlage ELSA
Zander, Sven (2013-10-17)An der Elektronen-Stretcher-Anlage ELSA wird eine resonante Anregung der horizontalen Strahlschwingungen zur Extraktion der Elektronen aus dem Speicherring genutzt. Diese Extraktionsmethode ermöglicht an den beiden ... -
Opto-mechanical manipulation of indium atoms
Wang, Jiayu (2004)Indium is a technologically interesting element in the semicoductor and opto-electronics industry.<br /> Instead of other usually applied methods, we try to fabricate nano-structures of indium with atom lithography. The ... -
Optogenetic investigation of local adrenaline signaling effects on cardiac arrhythmia mechanisms
Dusend, Vanessa Stefanie Martha (2024-01-15)Ventricular arrhythmias are one of the major causes of death worldwide, occurring especially in structurally remodeled hearts, but also in hereditary conditions, such as CPVT, in which mutations in RyR2 or Casq2 cause ... -
Optogenetics in striated muscle: defibrillation of the heart and direct stimulation of skeletal muscles with light
Brügmann, Tobias (2019-12-16)Optogenetic depolarization of cells using the non-selective cation channel Channelrhodopsin-2 (ChR2) enables precise control over the membrane potential of cells within a specific area of intact organs. Furthermore, the ... -
Optogenetische Kontrolle von cAMP durch eine photoaktivierte Adenylatzyklase
Jansen, Vera (2015-03-27)Optogenetik ist eine Methode, bei der lichtaktivierbare Proteine zur Manipulation zellulärer Funktionen verwendet werden. Häufig genutzt werden hierbei lichtaktivierbare Ionenkanäle und -pumpen, wie beispielsweise ... -
Optogenetische Stimulation des nativen Herzmuskels durch Adeno-assoziierte Virustransduktion von Channelrhodopsin-2
Vogt, Christoph Carsten Otto See Kee (2022-12-15)Die Optogenetik ist eine innovative Methode, die die transgene Expression von lichtsensitiven Proteinen verwendet zur elektrophysiologischen oder biochemischen Stimulation von Zellen durch Beleuchtung. Das Beleuchten mit ... -
OptoRiboGenetics: Post-transcriptional control of gene expression by light
Pilsl, Sebastian (2021-08-26)Gene expression is tightly regulated in mammalian cells at the post transcriptional level and its precise manipulation has proven to be valuable for protein overexpression and gene therapy. Implementation of light-responsive ... -
Orbifolds and Kaluza-Klein-Monopoles in Heterotic E8 x E8 String Theory Preserving Eight Supercharges
Conrad, Jan (2002)We give a detailed account on heterotic E<sub>8</sub> x E<sub>8</sub> orbifold models with N=(1,0), D=6 supersymmetry using the operator approach. It is shown that there is a weak and a strong form of the level matching ... -
Order-Theoretic Combination Techniques and the Electronic Schrödinger Equation
Barker, James Nicholas John (2024-05-22)Most standard constructions of the <em>combination technique</em> [M. Griebel et al., <em>Iterative Methods in Linear Algebra</em>, Elsevier, North Holland, p. 263] manipulate families of functions organised by downward-closed ... -
Ordnungsphänomene redox-aktiver Moleküle auf Elektrodenoberflächen unter reaktiven Bedingungen
Röefzaad, Melanie Sandra (2011-02-25)Im Rahmen dieser Arbeit konnte erfolgreich die IR-Reflektions-Absorptions-Spektroskopie (IRRAS) an Oberflächen mit elektrochemischen Methoden, wie der Zyklovoltammetrie (CV), und bildgebenden Methoden, wie der Rastertunn ... -
Organic-Inorganic Hybrids and Charge Transfer Salts with N-Methylpyridoneazine and its Derivatives
Isenberg, Rebecca Atima (2023-11-13)The pyridone azine N-methylpyridoneazine (MPA, 1) is electron-rich and a planar organic donor molecule. As two-stage redox system, it can undergo two one-electron oxidation steps forming a radical cation species and an ... -
Organization and function of signaling molecules in sperm
Hamzeh, Hussein (2017-09-15)Successful fertilization depends on the ability of sperm to locate the egg. Sperm from different species rely on diverse signaling components to gather chemical and physical cues and transduce them into a behavioral swimming ... -
Orientation and Search Strategies of Desert Arthropods: Path Integration Models and Experiments with Desert Ants, Cataglyphis fortis (Forel 1902)
Merkle, Tobias Friedrich Christian (2007)Path integration enables desert arthropods to find back to their nest on the shortest track from any position. To perform path integration successfully, speeds and turning angles along the preceding outbound path have to ... -
Orientation reversal of manifolds
Müllner, Daniel (2009-03-06)We study the phenomenon of chirality in the context of manifolds. An orientable manifold is called amphicheiral if it admits an orientation-reversing self-map and chiral if it does not. In addition to being continuous and ... -
Origins of Endothermy in the Mammalian Lineage: the Evolutionary Beginning of Fibro-lamellar Bone in the “Mammal-Like” Reptiles
Shelton, Christen Don (2015-07-07)This study reports on long bone histology of the pelycosaurs, and proposes the hypothesis that the presence of fibro-lamellar bone (FLB) and high growth rates were already present in the basal most synapsids during the ... -
The orphan G protein-coupled receptor GPR17: its pharmacology and function in recombinant and primary cell expression systems
Simon, Katharina Anna Maria (2017-04-26)The reconstitution of myelin sheaths, so called remyelination, represents an innovative therapeutic goal in multiple sclerosis (MS), the most common inflammatory-demyelinating disease of the central nervous system (CNS). ... -
Ortsaufgelöste NMR-Relaxometrie mit Hilfe des B1-Gradienten eines Torusdetektors
Stadler, Jörg (2004)Relaxationszeitmessungen sind heute ein fester Bestandteil in der NMR-Spektroskopie. Neben der Medizintechnik, wo die Kenntnis von Relaxationszeiten zur Kontrasterzeugung eingesetzt wird oder bei der Strahlungsdosimetrie ...