E-Dissertationen: Suche
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Paramecium biaurelia im niederfrequenten Magnetfeld: Auswirkungen auf das Schwimmverhalten, die cAMP-, cGMP- und 5`-Methoxytryptamin-Konzentrationen
(2001)
Paramecium biaurelia wurde eingesetzt, um Effekte eines niederfrequenten Magnetfeldes (50 Hz) der Flußdichte 2 mT auf das Schwimmverhalten und die Signaltransduktion dieser Einzeller zu untersuchen. Modifikationen ...
Homology Assessment in Molecular Phylogenetics: Evaluation, Improvement, and Influence of Data Quality on Tree Reconstruction
(2012-01-12)
Considering the final goal of every phylogenetic analysis, the reconstruction of taxon relationships from underlying data, little attention has been paid to the role of alignment accuracy and its impact on tree reconstruction. ...
Analysis of the Rubbing Behaviour of Psammophiids: A Methodological Approach
(2011-01-19)
Several snakes belonging to the eight genera of the family Psammophiidae are the sole known snakes to smear the secretion of their nasal gland on their own belly and flanks by little rapid head movements. The main objective ...
Molecular insights to crustacean phylogeny
(2010-03-02)
This thesis aims to resolve internal relationships of the major crustacean groups inferring phylogenies with molecular data. New molecular and neuroanatomical data support the scenario that the Hexapoda might have evolved ...
Limitation of body mass of herbivores: Allometry of food quality and of digestive aspects
(2010-10-13)
That the length of digesta passage rate of large herbivores was influenced by the BM of the animal was discussed controversial in the past and recently. However, recent studies with increasing data sets show tendencies to ...
The impact of artificial lights and anthropogenic noise on Loggerheads (Caretta caretta) and Green Turtles (Chelonia mydas), assessed at index nesting beaches in Turkey and Mexico
(2009-06-02)
Coastal development is considered to be a significant hazard that endangers sea turtles by destroying nesting space. If uncontrolled, it will result in decline and local extinction, or will prevent recovery of these ...
Vom Verhalten zum fiktiven Fressen: Anatomie und Elektrophysiologie des muskulären und neuronalen Systems der Nahrungsaufnahme von Dipteren-Larven (Calliphora vicina, Drosophila virilis und Drosophila melanogaster)
(2010-03-29)
In dieser Arbeit wurde versucht, auf Basis klassischer neurobiologischer Methoden das larvale Fressverhalten von cyclorraphen Dipteren, im Speziellen von Drosophila melanogaster, als Modellsystem für die Untersuchung ...
Identification of a putative Litomosoides sigmodontis phosphate permease, Ls-ppe-1, and its role in the interaction between filarial nematodes and their Wolbachia endosymbionts & Establishment of RNA interference in the rodent filaria Litomosoides sigmodontis, a model of human filariasis
(2009-12-09)
Filariasis is a vector-borne disease that affects 200 million individuals in the tropics, a large number of them seriously, where the disease leads to blindness (onchocerciasis) or elephantiasis (lymphatic filariasis). The ...
Funktionelle und molekulare Untersuchungen zur Expression von GABAA- und P2X-Rezeptoren in Gliazellen des Hippocampus
(2009-11-26)
In dieser Arbeit wurden Membranrezeptoren von Gliazellen des Hippocampus funktionell und molekular untersucht.
Der Fokus der Untersuchungen lag auf der Charakterisierung der GABAA-Rezeptoren in GluR-Zellen. ...
Der Fokus der Untersuchungen lag auf der Charakterisierung der GABAA-Rezeptoren in GluR-Zellen. ...
Analysis of veterinary pharmaceuticals in soil and their impact on microbial populations
(2008)
Veterinary medicines may enter agricultural soils by the use of animal excrements as fertilizers. In this study the impact of veterinary pharmaceuticals sulfadiazine (SDZ) and chlortetracycline (CTC) on soil bacterial ...