Sökning: "Grahn"

Visar resultat 16 - 20 av 77 avhandlingar innehållade ordet Grahn.

  1. 16. Palaeobiology and biostratigraphy of Ordovician Chitinozoa from Sweden

    Författare :Yngve Grahn; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  3. 17. Fakta, normativitet eller pluralism? : Didaktiska typologier inom gymnasieskolans geografiundervining om klimatförändringar

    Författare :Andreas Grahn; Leif Östman; Lena Molin; Kjell Haraldsson; Per Sund; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Climate change; education; geography; pragmatism; didactic typologies; selective traditions; democracy; Human geography; economic geography; Kulturgeografi; ekonomisk geografi; Geography; Geografi; Didactics;

    Sammanfattning : In education about climate issues teachers make choices. What is of most importance? To know how the green house effect works in a natural scientific way or to know about the political processes that can help us find a solution? Habits, or selective traditions, answers the questions why, what and how does teachers do when teaching about climate issues. LÄS MER

  4. 18. Human α2,3-sialyltransferases. Structure and Function of Alternatively Spliced Transcripts

    Författare :Ammi Grahn; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; a2; 3-sialyltransferase; isotranscript; isoenzyme; alternative splicing; capillary electrophoresis;

    Sammanfattning : The recruitment of human peripheral blood leukocytes to sites of infection and inflammation requires the surface expression of Sialyl Lewis x glycoconjugates (SLex) on white blood cells and their interaction with E- and P-selectins on activated endothelial cells. Human ST3Gal III, ST3Gal IV and ST3Gal VI genes code for a2,3?sialyltransferases potentially involved in the biosynthesis of the SLex epitope. LÄS MER

  5. 19. Bacteriological aspects of treatment failures in streptococcal tonsillitis

    Författare :Eva Grahn; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ß-streptococci; treatment failure; a-streptococci; bacterial interference; beta-lactamase; Phenoxymethylpenicillin; penicillin tolerance;

    Sammanfattning : ß-hemolytic streptococci persist in 10-25% of patients with acute streptococal tonsillitis (about 10.000-25.000 per year in Sweden) in spite of treatment with a recommended dosage and schedule of Phenoxymethylpenicillin. LÄS MER

  7. 20. Lake sediment as environmental archive : natural and anthropogenic influence on the chronology of trace elements

    Författare :Evastina Grahn; Stefan Karlsson; Anders Düker; Bo Bergbäck; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; lake sediment; environmental pollution; trace elements; chronology; diagenesis; Ag; Be; Ga; In; Pb; Sb; Tl; Environmental chemistry; Miljökemi; Enviromental Science; Miljövetenskap;

    Sammanfattning : The focus of this thesis is the historical pollution of some seldom-monitored trace elements (SMTEs; Ag, Be, Ga, In, Sb and Tl) that have been involuntarily released for several thousands of years but whose usage have increased during the industrial era. Sediment cores from four rural lakes in a south to north transect in central Sweden, and two urban lakes have been used as environmental archives for chronological studies. LÄS MER