Sökning: "MOLECULAR-OXYGEN"
Visar resultat 1 - 5 av 79 avhandlingar innehållade ordet MOLECULAR-OXYGEN.
1. Molecular oxygen and hydrogen peroxide as mild oxidants in catalytic oxidations : Applications to palladium and osmium catalysis
Sammanfattning : In this thesis the use of molecular oxygen and hydrogen peroxide as mild oxidants in transition metal-catalyzed oxidations of organic substrates is discussed. The thesis is divided into three parts.In the first part the use of heteropolyacids as robust oxygen-activating agents for aerobic reoxidation of zerovalent palladium is described. LÄS MER
2. Crystallographic studies of enzymes involved in biosynthesis of fatty acids : beta-ketoacyl-acyl carrier protein synthase II and delta9-stearoyl-ACP desaturase
Sammanfattning : In the biosynthesis of fatty acids, the beta-Ketoacyl Acyl Carrier Protein Synthases (Kas) catalyse chain elongation by the addition of two-carbon units derived from malonyl-ACP, to an acyl group bound to CoA or the small protein ACP. These enzymes are potential targets for antibiotics against bacterial or parasitical infections and their mammalian counterparts could hopefully be used as drug targets against certain cancers and obesity. LÄS MER
3. Biomimetic Reactions : Water Oxidation and Aerobic Oxidation
Sammanfattning : This thesis deals mainly with two oxidation reactions: water oxidation and aerobic oxidation, both of which have been applied in a biomimetic fashion. In the former reaction molecular oxygen is generated whereas in the latter it was used as terminal oxidant in oxidation reactions. LÄS MER
4. Enzymes and genes for microbial metabolism ofoxochlorates
Sammanfattning : Oxochlorates can be used as electron acceptors for microbial respiration in a variety of bacterial species, and oxochlorate respiration plays a substantial role in the biotransformation of these environmental contaminants. Although oxochlorate respirers are widely spread in the environment, only few enzymes and even fewer genes, involved in the metabolism of oxochlorates have been isolated and characterised. LÄS MER
5. Modeling the Zeeman Effect in Planetary Radiative Transfer and Applications
Sammanfattning : Remote sensing is about retrieving distant physical properties from locally observed radiation. The first step to remote sensing is to describe, or model, the radiative transfer. LÄS MER