Faculties of University Bonn: Search
Now showing items 1481-1490 of 8591
Cell-cell adhesion mediated by mobile receptor-ligand pairs: a biomimetic study
(2009-05-07)
This thesis aims at a quantitative understanding of the physical processes in cell-cell adhesion caused by mobile cell adhesion molecules. To unequivocally separate physical processes from active biological cell response, ...
Cahn–Hilliard-type Equations: Robust Discretization and Efficient Implementation
(2009-05-11)
In this work, a robust and efficient numerical method to simulate Cahn–Hilliard-type equations is presented. The considered equations are of fourth order and contain two nonlinearities: one is the concentration-dependent ...
Struktur und Reaktivität der reinen und modifizierten Pd(111)-Elektrodenoberfläche
(2009-08-26)
Bisher wurde in der Literatur ein widersprüchliches Adsorptionsverhalten von Kohlenmonoxid auf der Pd(111)-Oberfläche zwischen UHV und wässrigen Lösungen bei Raumtemperatur beschrieben: Während im UHV gemessene IRRAS-Spektren ...
Marine-derived fungi: a source for structurally new and bioactive secondary metabolites
(2009-05-25)
The marine habitat has been proven to be a rich source for both macro- and microorganisms that produce novel and often highly bioactive natural products. Hence, the investigation of the secondary metabolite spectrum of ...
Charakterisierung der Induktion von CD8 T Zell-Immunität durch sinusoidale Endothelzellen der Leber
(2009-06-19)
Die Leber spielt eine entscheidende Rolle bei der Induktion der peripheren Toleranz. Hierbei sind die sinusoidalen Endothelzellen der Leber (LSEC) von großer Bedeutung, welche mit CD8 T Zellen interagieren und in diesen T ...
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 ...
Intersections of arithmetic Hirzebruch-Zagier cycles
(2009-06-15)
We establish a close connection between the intersection multiplicities of three arithmetic Hirzebruch-Zagier cycles and the Fourier coefficients of the derivative of a certain Siegel-Eisenstein series. Our main result ...
Anwendung effektiver Feldtheorie auf Kernmaterie und Neutronenmaterie
(2009-06-03)
In der Arbeit wird die Effektive Feldtheorie in der Ordnung NLO und NNLO angewandt.
Die Ordnung NLO kennt noch keine Dreiteilchenkräfte. Die Theorie liefert jedoch bereits in dieser Ordung das Sättigungsverhalten von ...
Die Ordnung NLO kennt noch keine Dreiteilchenkräfte. Die Theorie liefert jedoch bereits in dieser Ordung das Sättigungsverhalten von ...
Lineage Selection and Enhanced Tissue Integration of Functional and Cryopreservable Human Embryonic Stem Cell-Derived Neurons
(2009-05-13)
In this study, a human Doublecortin (DCX) promoter-based lineage selection strategy is presented for the generation of purified human embryonic stem (hES) cell-derived immature neurons. Stable transfection of long-term ...
Biochemical and functional analysis of innexin2-containing gap junction channels during organogenesis in Drosophila
(2009-05-13)
Gap junctions channels serve as mediators for direct cell-to cell communication between cells of different tissues and organs by the exchange of small metabolites and signalling molecules. They are formed by analogous ...