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Vibrational anharmonicity in small neutral gold and silver clusters
Dissertation
This thesis presents a systematic study of anharmonicity in small neutral gold and silver clusters applying the vibrational self-consistent field method (VSCF). This application relies on a plane-wave representation of ...
Atomic structure, stability and formation of surface confined alloys
Dissertation
In this work, various bimetallic model surfaces were prepared on Ru(0001) and Pt(111) single crystals and structurally characterized by scanning tunneling microscopy (STM) and Auger-electron spectroscopy (AES) to identify ...
Selbstorganisation oligomerer N-Heterocyclen an der fest/flüssig-Grenzfläche
Dissertation
The PhD thesis is divided into two larger parts. The first part handles about the synthesis of different oligomeric N-heterocycles. Hereby the focus is on pyridine containing systems. In doing so mainly compounds are ...
Implementierung und Anwendung analytischer und numerischer Verfahren zur Lösung der Maxwellgleichungen für die Untersuchung der Lichtausbreitung in biologischem Gewebe
Dissertation
The comprehension of light propagation in biological tissue is of particular importance for the development of optical applications in biomedical diagnostics and therapy. Typically, solutions of the radiative transfer or ...
Species specific aspects of ecdysteroid receptor response to ecdysteroids and juvenile hormone
Dissertation
The functional ecdsysteroid receptor is a heterodimeric complex consisting of the ecdysone receptor (EcR) and ultraspiracle (USP). Ecdysteroids mediate the activity of the heterodimer to regulate transcription of genes ...
Epitaktische FeAl-Filme auf Saphir und ihre magnetischen Eigenschaften
Dissertation
In the presented thesis epitaxial FeAl thin films on sapphire have been prepared by pulse laser deposition (PLD). The thin films deposited at room temperature exhibits ferromagnetism and subsequent annealing is necessary ...
Regulation of death receptor-induced apoptosis by c-FLIP in pancreatic carcinoma
Dissertation
Pancreatic adenocarcinoma is one of the leading causes of cancer death and despite aggressive surgical or medical management, the mean life expectancy is only 3 - 6 months for patients with metastatic disease. Combination ...
Metallisierung aromatischer Monolagen auf Au(111)
Dissertation
Mit den Arbeiten von Nuzzo und Allara wurden organische Schwefelverbindungen als neue Klasse SAM-bildender Moleküle eingeführt [1]. Aufgrund der strukturellen Vielfalt und der einfachen Präparation sind vor allem Alkanthiole ...
FePt and CoPt nanoparticles prepared by micellar method: Effects of A1 -> L1 0 transition on oxidation resistance and magnetic properties
Dissertation
FePt and CoPt alloy nanoparticles with diameters of 2-12 nm and interparticle distances of 20-140 nm are prepared with reverse micelles.
X-ray magnetic circular dichroism (XMCD) measurements on 5.8 nm FePt nanoparticles ...
Cyanobakterielle Hepatotoxine in limnischen Sedimenten: Methodenentwicklung zur Spurenanalytik
Dissertation
Various species of aquatic cyanobacteria produce potent hepatotoxins, the microcystins and nodularins. Highly selective methods are essential for trace analysis of these substances in limnic sediments. This dissertation ...