Faculties of University Bonn: Search
Now showing items 21-30 of 57
Systematics and Biogeography of the African Scaly-tailed Squirrels (Mammalia: Rodentia: Anomaluridae)
(2005)
The aim of the present investigation was a better understanding of the systematics and biogeography of the African scaly-tailed squirrels. Therefore 1581 anomalurid specimens from 22 collections were examined and data from ...
Die Wirkung der Mikrogravitation auf das Abwehrsystemvon Schwertträgerfischen (Xiphophorus helleri, Heckel)in einem geschlossenen, aquatischen Ökosystem: immunologische und hämatologische Untersuchungen
(2006)
Background: The effect of space flight conditions on the immune system of humans and rodents was investigated since the beginning of space flight. Until now there were no investigations of the influence of microgravity ...
Forest fragmentation and plant-pollinator interactions in Western Kenya
(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 ...
In this ...
Effects of Habitat Degradation and Fragmentation on the Genetic Population Structure of Phytophagous Beetles in an African Rainforest
(2005)
In the presented study the genetic population structure of the phytophagous beetles Amphitmetus transversus (Coleoptera, Curculionidae) and Monolepta vincta (Coleoptera, Chrysomelidae) was analysed in a highly disturbed ...
The Uncinate Processes in Birds and their Implications for the Breathing Mechanics of Maniraptoran Dinosaurs
(2004)
The breathing mechanics of dinosaurs and the connected implications for lung structure (Perry 1983) and metabolism is currently a focus of intense and sometimes controversial discussion (Perry in press). Rubens et al (1997) ...
Interesse an der Natur bei Kindergarten- und Grundschulkindern: Studien zur Gestaltung und Wirkung des Forschenden Lernens an außerschulischen Lernorten
(2020-06-18)
Interesse gilt als zentrale motivationale Voraussetzung für das Lernen. Auch für eine gesunde Persönlichkeitsentwicklung ist die Ausprägung und Entwicklung von Interessen notwendig. Bislang ist jedoch kaum erforscht, wie ...
Influence of altered gravity on the oxidative burst in macrophages
(2013-12-10)
The recognition of pathogen patterns followed by the production of reactive oxygen species (ROS) during oxidative burst is one of the major functions in macrophages. This process is the first line of defence which is crucial ...
Evolution of chloroplast sequestration in Sacoglossa (Mollusca, Gastropoda)
(2014-08-12)
Sacoglossa (Gastropoda, Panpulmonata) is a small taxon of marine gastropods with about 300 described species. It consists of two major lineages: the shelled Oxynoacea and the shell-less Plakobranchacea. The latter is ...
Untersuchungen zur Phylogenie der Cirratulidae (Annelida)
(2014-02-07)
Die phylogenetische Position der Cirratulidae innerhalb der sedentären Polychaeten ist bisher nicht zufriedenstellend aufgeklärt. Historisch wurden die Cirratulidae nahe zu den Spionidae bzw. zu den Terebellida gezählt. ...
The homeodomain of the Drosophila Ceramide Synthase Schlank confers nuclear import information and DNA binding capabilities
(2014-05-15)
Ceramide Synthases (CerS) are membrane bound enzymes at the center of the sphingolipid synthesis cascade. A sub-class of CerS also codes for a homeodomain of unknown function.
We previously identified the ...
We previously identified the ...