Sökning: "the mechanism of"

Visar resultat 1 - 5 av 6045 avhandlingar innehållade orden the mechanism of.

  1. 1. The birth of the hydrogenase : Studying the mechanism of [FeFe] hydrogenase maturation

    Författare :Brigitta Németh; Gustav Berggren; Ann Magnuson; Mohamed Atta; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; HydF; HydA; [FeFe] hydrogenase maturation; semi-synthetic enzymes; Biokemi; Biochemistry;

    Sammanfattning : The [FeFe] hydrogenases are ancient metalloenzymes that catalyse the reversible interconversion between protons, electrons and molecular hydrogen. Despite the large structural variability within the [FeFe] hydrogenase family, the active site, the so called “H-cluster” is present in every representative. LÄS MER

  3. 2. Nybyggarbarn : Barnuppfostran bland nybyggare i Frostvikens, Vilhelmina och Tärna socknar 1850-1920

    Författare :Marianne Liliequist; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Education of children; child care; history of childhood; settlers; values; life stories; history of civilisation; Ethnology; Etnologi;

    Sammanfattning : The investigation concerns childrearing among settlers in the northern part of Sweden between 1850-1920. What were the attitudes of the adults towards children and what ideals were there for children's behaviour? By investigating childrearing I also intended to find which general values and norms there were in the settlers' society. LÄS MER

  4. 3. Studies of the anomeric center : mechanism and synthesis

    Författare :Karl-Jonas Johansson; Harri Lönnberg; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; organisk kemi;

    Sammanfattning : This thesis is based on three publications and one appendix and is divided into two parts. The first part is a mechanistic study of the anomerization reaction of both aldo and keto glycosides and the second part is a synthetic study of a unusual type of glycosidic linker found in the lipopolysaccharide core Proteus Mirabilis 0270. LÄS MER

  5. 4. Wiring Components of the Respiratory Chain : Modulation of the Respiratory Chain in Yeast and Bacteria

    Författare :Jacob Schäfer; Peter Brzezinski; Dennis Winge; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cytochrome c oxidase; Electron transfer; Membrane protein; Ligand; Kinetics; Mechanism; Rcf1; Cytochrome c; Respiratory supercomplex; Cryo-electron microscopy; Biochemistry; biokemi;

    Sammanfattning : The enzyme complexes of the respiratory chain are organized in supramolecular assemblies, so-called respiratory supercomplexes. In the yeast Saccharomyces cerevisiae, these supercomplexes consist of two copies of complex III (bc1 complex) and one or two copies of complex IV (cytochrome c oxidase, CytcO). LÄS MER

  7. 5. The kinetics of cellulose enzymatic hydrolysis : Implications of the synergism between enzymes

    Författare :Priit Väljamäe; Jan-Christer Janson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Acetobacter; Cellobiohydrolase; Cellobiose; Cellulase; Cellulose; Diffusion; Endoglucanase; Hydrolysis; Inhibition; Kinetics; Model; Product; Substrate; Surface; Synergism; Trichoderma reesei; Biokemi; Biochemistry; Biokemi; biokemi; Biochemistry;

    Sammanfattning : The hydrolysis kinetics of bacterial cellulose and its derivatives by Trichoderma reesei cellulases was studied. The cellulose surface erosion model was introduced to explain the gradual and strong retardation of the rate of enzymatic hydrolysis of cellulose. LÄS MER