Sökning: "antarctica"
Visar resultat 21 - 25 av 117 avhandlingar innehållade ordet antarctica.
21. Enantioselective biotransformations using engineered lipases from Candida antarctica
Sammanfattning : Enzymes are attractive catalysts in organic synthesis since they are efficient, selective and environmentally friendly. A large number of enzyme-catalyzed transformations have been described in the literature. LÄS MER
22. Engineering of Candida antarctica Lipase A and B
Sammanfattning : In organic chemistry, it is often desirable to have an efficient process yieldingpure product and not too much waste. When applicable, it is also desirable tohave a high enantioselective outcome. Enzymes are often displaying high regio-,chemo- and stereoselectivity. LÄS MER
23. Ocean circulation in the Amundsen Sea, West Antarctica
Sammanfattning : The increase of mass loss from the Antarctic Ice Sheet is a significant contribution to global sea level rise. The most rapid changes are occurring in the Amundsen Sea area, where the thinning of the floating glaciers is assumed to be driven by the ocean. LÄS MER
24. Late Tertiary glaciations and climate dynamics in Antarctica : evidence from the Sirius Group, Mount Fleming, Dry Valleys
Sammanfattning : .... LÄS MER
25. Determination of Fat-Soluble Vitamins in Foods Based on Supercritical Fluid Extraction
Sammanfattning : Sample clean-up methodologies based on supercritical fluid extraction (SFE) have been developed for determination of fat-soluble vitamins in foods. This thesis focuses on method development, stressing important issues concerning sample pre-treatment, extraction conditions and collection parameters. LÄS MER