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Visar resultat 1 - 5 av 427 avhandlingar som matchar ovanstående sökkriterier.
1. Macroalgae in tropical seascapes : regulating factors and functions in the coastal ecosystem
Sammanfattning : Although macroalgae usually are inconspicuous on pristine coral reefs, they often thrive on reefs that are subjected to various types of anthropogenic disturbance. This thesis consists of five papers and investigates how biomass and composition of macroalgal communities on coral reefs are affected by regulating factors, such as nutrient availability, herbivory, substrate availability and hydrodynamic forces. LÄS MER
2. Transcription factors regulating the Btk promoter
Sammanfattning : Bruton's agammaglobulinemia tyrosine kinase (Btk) is a cytoplasmic tyrosine kinase-related to the Src family of kinases. Mutations in various parts of the gene have been shown to lead to X-linked agammaglobulinemia, an immunodeficiency disease which is characterized by a defect in B-cell development. LÄS MER
3. Angiogenic growth factors : mechanism of action and function in vascular development
Sammanfattning : The mature vascular system is composed of a network of blood vessels organized into arteries, capillaries, and veins. The vessels are composed of endothelial cells surrounded by smooth muscle cells and embedded in a specialized basement membrane. LÄS MER
4. Factors regulating lymphocyte development and peripheral activation
Sammanfattning : Peripheral tolerance is regulated by different types of regulatory T cells, including CD1-restricted T cells and CD4+CD25+ regulatory T (Treg) cells. This thesis has focused on the interactions between T cells and antigen presenting cells (APCs) and the immunregulatory function of TGF-b as two important factors regulating differentiation and activation of T cells in the periphery. LÄS MER
5. Production of trophic factors regulating peripheral neurons
Sammanfattning : .... LÄS MER