Sökning: "Cactus"
Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet Cactus.
1. Signaling pathways in Drosophila immunity
Sammanfattning : Drosophila relies on innate immunity to protect itself from its hostile environment throughout its life cycle. Despite the remarkable progress in understanding many aspects of Drosophila immunity, there are still big gaps in our knowledge. LÄS MER
2. Regulatory proteins and the regulation of immune response in Drosophila melanogaster
Sammanfattning : Insect antibacterial peptides are regulated at the transcriptional level. The otherwise silent antibacterial Cecropin genes are strongly induced upon bacterial challenge. LÄS MER
3. On Approximating Asymmetric TSP and Related Problems
Sammanfattning : In this thesis we study problems related to approximation of asymmetric TSP. First we give worst case examples for the famous algorithm due to Frieze, Gabiati and Maffioli for asymmetric TSP with triangle inequality. Some steps in the algorithm consist of arbitrary choices. To prove lower bounds, these choices need to be specified. LÄS MER
4. Morphologican and functional studies on the Drosophila neuromuscular system during postembryonic stages
Sammanfattning : The nervous system of the fruit fly Drosophila melanogaster has emerged as an excellent model for fundamental neuroscience as well as for biomedical research of human neurological diseases. In this thesis, two aspects of the neuromuscular system have been investigated: the role of the IkB-protein Cactus in the larval neuromuscular junction and the morphology of motor terminals throughout adult life. LÄS MER
5. Genetic Adaptation and Speciation in Darwin’s Finches and Atlantic Herring
Sammanfattning : Natural selection acts on existing genetic variation to drive genetic adaptation of organisms to various ecological niches. Interaction between closely related populations, through processes such as competition and hybridization, may either lead to their divergence or population fusion, which has consequences for adaptation and the formation of species. LÄS MER