Sökning: "Roland Jonsson"

Hittade 5 avhandlingar innehållade orden Roland Jonsson.

  1. 1. Combustion dynamics and melt dripping of ethylene-acrylate copolyer composites

    Författare :Roland H. Krämer; Ulf W. Gedde; Mats Jonsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; methacrylic acid; ethylene; calcium carbonate; ionomer; nanoparticles; intumescence; halogen-free; flame retardant; melt dripping; Polymer chemistry; Polymerkemi;

    Sammanfattning : The degradation and combustion of blends of ethylene-acryalte copolymer with calcium carbonate and silicone were studied by a combination of flammability tests, in-situ measurements and analytical experiments. Compounds of poly(ethylene-co-methacrylic acid) blended with precipitated calcium carbonate nanoparticles were prepared. LÄS MER

  3. 2. Icons of New Public Management : four studies on competition, contracts and control

    Författare :Roland M Almqvist; Ernst Jonsson; Björn Brorström; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; competition; decentralization; management by contract; management control system; mechanisms of change; new public management; organizational reform; threat of competition; transformation; Business studies; Företagsekonomi;

    Sammanfattning : Public organizations have undergone major changes over the past few decades. The umbrella term used to characterize these changes in the style of public administration is ‘New Public Management’ (NPM). LÄS MER

  4. 3. Immunological Studies using Human and Canine Model Disorders

    Författare :Kerstin M. Ahlgren; Anna Lobell; Olle Kämpe; Kerstin Lindblad-Toh; Roland Jonsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Autoimmunity; T cell; T helper cell; B cell; Autoantibodies; Interferon; Interleukin; Dogs; APS-1; Candida albicans; fungus; Immunologi; Immunology; Medicin; Medicine;

    Sammanfattning : The studies presented in this thesis focus on human and canine models for autoimmune disease, with the main aim to gain new knowledge about disease mechanisms and to further evaluate the dog as a model for autoimmune disease. Autoimmune Polyendocrine Syndrome type 1 (APS-1) is a hereditary human multiorgan disease caused by mutations in the autoimmune regulator (AIRE) gene. LÄS MER

  5. 4. The Role of Fc Gamma Receptors in Experimental Arthritis

    Författare :Maria Andrén; Sandra Kleinau; Birgitta Heyman; Roland Jonsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; Rheumatoid arthritis; Antibodies; Fc receptors; Complement; Transgenic Knockout mice; Immunologi; Immunology; Immunologi;

    Sammanfattning : Induction of collagen-induced arthritis (CIA), an animal model for human rheumatoid arthritis, is dependent on anti-collagen type II (CII) antibodies. The effector mechanism by which autoantibodies contribute to inflammatory reactions in autoimmune diseases is not well understood. LÄS MER

  7. 5. Interfacial kinetic ski friction

    Författare :Leonid Kuzmin; Mats Tinnsten; Jonas Danvid; Mikael Jonsson; Roland Larsson; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ski glide; ski base; ski wax; hydrophobicity; UHMWPE; PTFE; topography; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : It is no doubt, that the ski glide over the snow is a very complicated object of research. However, ski glide is just a one area of many other areas of human knowledge. As a rule, the scientists and practitioners, who work in these areas, operate with some publicly expressed more or less solid hypotheses. LÄS MER