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Visar resultat 6 - 10 av 78 avhandlingar innehållade orden S Lake.
6. Causes and consequences of Gonyostomum semen blooms
Sammanfattning : Aquatic ecosystems provide essential ecosystem services, but are also highly vulnerable to global change. Climate change, eutrophication and browning, for example, collectively drive the increase of harmful algal blooms in freshwaters. LÄS MER
7. Cytoplasmic mRNP particles in dormant and developing artemia embryos
Sammanfattning : In dormant cryptobiotic embryos of Artemia there is a stored pool of messenger RNA (mRNA) associated with the endoplasmic reticulum. Upon resumption of the embryos this latent mRNA is activated and used in the protein synthesis. LÄS MER
8. C2- and C3-symmetric ligands via ring-opening of aziridines
Sammanfattning : This thesis deals with the design and synthesis of chiralenantiopure nitrogencontaining ligands and the use of theseligands in asymmetric catalysis. A modular synthetic approachto enantiopure nitrogen-containing ligands was developed. Thesynthetic method is based on the ring-opening of activatedchiral aziridines by nitrogen nucleophiles. LÄS MER
9. Factors influencing the biogeography of bacteria in fresh waters - a metacommunity approach
Sammanfattning : One of ecology’s primary goals is to comprehend biodiversity and its patterns of distribution over space and time. Since microorganisms play a pivotal role in key ecological processes, the diversity of microbial communities may have important implications for the stability and functioning of Earth’s ecosystems. LÄS MER
10. Towards a Holocene tephrochronology for the Azores
Sammanfattning : The Azores is situated in the North Atlantic Ocean and is one of the most active volcanicregions in the Northern Hemisphere. The volcanic history of the islands is fairly wellknown and several explosive trachytic eruptions have been reported but the geochemicalcompositions of the glass component of the tephra as well as the dispersal oftephras to distal areas are less well known. LÄS MER