Sökning: "2 :6"

Visar resultat 21 - 25 av 8284 avhandlingar innehållade orden 2 :6.

  1. 21. Lignin Model Compounds: Synthesis, Stereochemistry and Acidolysis

    Författare :Shiming Li; [1998]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; boric acid complexes; Arylglycerol b-aryl ethers; stereochemistry; 3-Diaryl-2-propen-1-ols; 1; Phenylcoumarans; lignin model compounds; acidolysis; ion-exchange chromatography; 3-propanediols; 2-Diaryl-1; 2; X-ray crystallography;

    Sammanfattning : Lignin model compounds representative of structural elements in lignin of the b-1, b-5, b-O-4, cinnamaldehyde and cinnamyl alcohol types were synthesized. erythro-Forms of b-1 models of the 1,2-diaryl-1,3-propanediol type were prepared by BF3-catalyzed rearrangement of chalcone epoxides and subsequent reduction of the rearrangement products with NaBH4. LÄS MER

  2. 22. Ion Solvation in Critical Binary Aqueous Solvents Probed by Advanced Synchrotron-Based Techniques

    Författare :Monika Witala; Göteborgs universitet.; Gothenburg University.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; preferential ion solvation; microscopic segregation of hydrophilic ions; ion size asymmetry; critical binary liquid mixtures; 2; 6-dimethylpyridine; potassium chloride; grazing-incidence x-ray fluorescence; small-angle x-ray scattering; mesoscale ordering; x-ray beam-induced local heating;

    Sammanfattning : The Poisson-Boltzmann equation is the standard tool for studying the electrostatic interactions in electrolyte solutions, although it neglects e.g. the ion size and ion-ion correlations. Even experimentally observed specific ion effects cannot be explained in a view of this approximation. LÄS MER

  3. 23. Prostaglandin E2 in Brain-mediated Illness Responses

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Louise Elander; Anders Blomqvist; Marianne Schultzberg; [2010]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; prostaglandin e2; PGE2; cox-1; cox-2; mPGES-1; fever; anorexia; food intake; HPA-axis; EP-receptor; LPS; IL-1; IL-6; MEDICINE; MEDICIN; MEDICINE Physiology and pharmacology Physiology Neurobiology; MEDICIN Fysiologi och farmakologi Fysiologi Neurobiologi;

    Sammanfattning : We are unceasingly exposed to potentially harmful microorganisms. The battle against threatening infectious agents includes activation of both the innate and of the adaptive immune systems. LÄS MER

  4. 24. Unravelling Consistent Spin-2 Interactions

    Detta är en avhandling från Stockholm : Department of Physics, Stockholm University

    Författare :Mikael von Strauss; Sayed Fawad Hassan; Mikhail Volkov; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Modified Gravity; Massive Spin-2; Spin-2 Interactions; Theoretical Physics; teoretisk fysik;

    Sammanfattning : Recently, a unique formulation of a classically consistent theory of massive spin-2 fields has emerged. In this thesis I address a few of the primary questions that arise once such a theory is available. LÄS MER

  5. 25. Design, synthesis and evaluation of spiro-bicyclo[2.2.2]octane derivatives as paclitaxel mimetics

    Detta är en avhandling från Stockholm : Department of Physics, Stockholm University

    Författare :Sophie Manner; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; asymmetric baker s yeast reduction; paclitaxel; spiro; bicyclo[2.2.2]octane; paclitaxel mimetics;

    Sammanfattning : Nature contains an endless supply of natural products and has for long been a source of inspiration for the pharmaceutical industry. Many of the drugs currently in clinical use originate from natural products. LÄS MER