Search for dissertations about: "riemann"
Showing result 1 - 5 of 47 swedish dissertations containing the word riemann.
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1. Prejudice: The Interplay of Personality, Cognition, and Social Psychology
Abstract : Three main theoretical approaches to the study of the causation of prejudice can be distinguished within psychological research. The cognitive approach suggests that prejudice is a function of cognitive processes where stereotypic information about social groups, stored in memory, is automatically activated and affects people’s judgements and behavior toward members of the target group. READ MORE
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2. Nitrogen fixation among marine bacterioplankton
Abstract : While bacterioplankton indisputably control vital biogeochemical paths in the cycling of carbon and nutrients in the world’s oceans, our knowledge about the functional and genetic diversity of bacterioplankton communities is negligible. In this thesis, molecular and more traditional microbiological methods were used to study the specific function of N2-fixation and in a general sense diversity of marine bacterioplankton species. READ MORE
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3. Substrate control of community composition and functional adaptation in marine bacterioplankton
Abstract : A drop of sea-water is teeming with a million of bacteria, on which pelagic food-webs and biogeochemical cycles depend. These bacteria thrive on a wide range of dissolved organic carbon (DOC) compounds produced through biotic and abiotic processes. READ MORE
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4. Distribution and activity of nitrogen-fixing bacteria in marine and estuarine waters
Abstract : In aquatic environments the availability of nitrogen (N) generally limits primary production. N2-fixing prokaryotes (diazotrophs) can convert N2 gas into ammonium and provide significant input of N into the oceans. Cyanobacteria are thought to be the main N2-fixers but diazotrophs also include a wide range of heterotrophic bacteria. READ MORE
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5. Marine nitrogen fixation : Cyanobacterial nitrogen fixation and the fate of new nitrogen in the Baltic Sea
Abstract : Biogeochemical processes in the marine biosphere are important in global element cycling and greatly influence the gas composition of the Earth’s atmosphere. The nitrogen cycle is a key component of marine biogeochemical cycles. READ MORE