Search for dissertations about: "Peter Bergqvist"

Found 5 swedish dissertations containing the words Peter Bergqvist.

  2. 1. Intestinal IgA synthesis: Localization and requirements for IgA class switch recombination

    Author : Peter Bergqvist; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; IgA; Intestine; Gut associated lymphoid tissue; class switch recombination; CD40; germ free;

    Abstract : Production of IgA at mucosal surfaces is one of the most striking features of the mucosal immune system. Despite that IgA was first discovered in the 1950’s and secretory IgA described in gut secretions and breast milk in the mid 1960’s we still have limited information about the sites and exact requirements for IgA class switch recombination. READ MORE

  4. 2. Tryptophan-related Neurotransmission in the Brain: Disturbances Associated with Experimental Hepatic Encephalopathy

    Author : Peter B F Bergqvist; Avdelningen för klinisk kemi och farmakologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; tetrodotoxin; serotonin; release; rat; quinolinic acid; potassium; chloroamphetamine; noradrenaline; neurotransmission; microdialysis; hepatic encephalopathy; fenfluramine; drug safety; dopamine; coma; citalopram; ammonia; calcium; brain; tryptophan; Pharmacological sciences; pharmacognosy; pharmacy; toxicology; Farmakologi; farmakognosi; farmaci; toxikologi;

    Abstract : In the present study, L-tryptophan (TRP)-related disturbances in the brain in experimental hepatic encephalopathy (HE) were investigated. The endogenous NMDA-receptor agonist and L-TRP metabolite quinolinic acid (QUIN) has been suggested to be involved in the pathogenesis of HE. READ MORE

  5. 3. Mathematics and mathematics education - two sides of the same coin : creative reasoning in university exams in mathematics

    Author : Ewa Bergqvist; Johan Lithner; Peter Nyström; Christer Bergsten; Umeå universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Polynomial convexity; Positive currents; Jensen measures; Mathematical reasoning; assessment; university level; Subject didactics; Ämnesdidaktik;

    Abstract : Avhandlingen består av två ganska olika delar som ändå har en del gemensamt. Del A är baserad på två artiklar i matematik och del B är baserad på två matematikdidaktiska artiklar. De matematiska artiklarna utgår från ett begrepp som heter polynomkonvexitet. READ MORE

  6. 4. Anticoagulation treatment in patients with a mechanical heart valve

    Author : Bartosz Grzymala-Lubanski; Anders Själander; Peter J. Svensson; David Bergqvist; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Mechanical heart valve; anticoagulation; warfarin; Time in Therapeutic Range TTR ; INR variability;

    Abstract : BackgroundEvery year about 2,500 patients in Sweden undergo surgery for heart valve disease, primarily in the aortic valve.  In contrast to the mitral valve, which can be repaired in 70% of the cases, the aortic valve is normally replaced by a mechanical or biological prosthesis. READ MORE

  7. 5. Gilbert damping of doped permalloy from first principles calculations

    Author : Fan Pan; Lars Bergqvist; Peter Svedlindh; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Gilbert damping; DFT; Permalloy; SPR-KKR; Spin stiffness; Fysik; Physics;

    Abstract : The dynamic process of how fast a spintronic device can be switched from one state to another is characterized by the Gilbert damping parameter. It has been found that the Gilbert damping along with other intrinsic properties in permalloy, can be tuned by different dopants and doping concentration. READ MORE