Sökning: "Annika Pettersson"

Hittade 5 avhandlingar innehållade orden Annika Pettersson.

  1. 1. Grafisk och algebraisk representation : Gymnasieelevers förståelse av linjära funktioner

    Författare :Annika Pettersson; Igor Gachkov; Kerstin Pettersson; Lovisa Sumpter; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; mathematics education; linear function; graphic representation; scale; concept image; Matematik; Mathematics;

    Sammanfattning : This thesis concerns upper secondary students’ understanding of algebraic and graphic representation of linear functions. Components of the students’ concept images, so-called ‘concept elements’, were studied as a way to capture their understanding. LÄS MER

  3. 2. Development and application of monoclonal antibodies in studies of the human leukotriene B4 receptor, BLT1

    Författare :Annika Pettersson; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; serologi; transplantation; Immunologi; Immunology; serology; antibodies; BLT1; LTB4;

    Sammanfattning : Infection and inflammation are characterized by the release of chemotactic substances that activate cells of the immune system. One of these important mediators is LTB4, an arachidonic acid derivate that attracts e.g. monocytes and granulocytes to inflammatory sites and induces phagocytosis and degranulation. LÄS MER

  4. 3. SERVICE-ORIENTED ARCHITECTURE : AN INNOVATION PROCESS PERSPECTIVE

    Författare :Annika Granebring; Péter Révay; Anita Håkansson; John Sören Pettersson; Mälardalens högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer and systems science; Data- och systemvetenskap; Industriell ekonomi och organisation;

    Sammanfattning : In traditional information systems for the grocery retail trade, the different parts are strongly dependent of each other. Should one function change, the whole system must be rebuilt which is expensive and time consuming. The result is that many necessary process improvements are never done. LÄS MER

  5. 4. Precipitation in Advanced Stainless Steels

    Författare :Niklas Holländer Pettersson; Annika Borgenstam; Sten Wessman; Joacim Hagström; Jacques Charles; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : Advanced stainless steels often suffer from complex precipitation behaviour due to the high levels of alloying elements needed to obtain their attractive properties. This demands a correct handling of the material to avoid formation of harmful phases during production, manufacturing and service. LÄS MER

  7. 5. TRANSMISSION AND PATHOGENESIS OF HANTAVIRUS

    Författare :Lisa Pettersson; Magnus Evander; Clas Ahlm; Annika Allard; Tatjana Avšič - Županc; Umeå universitet; []
    Nyckelord :Puumala virus; Hantavirus; human-to-human transmission; saliva; nephropathia epidemica; NE; IgA; IgG; IgM; neutrophils; neutrophil; viremia; treatment; climate; snow cover; temperature.; medicinsk virologi; Medical Virology;

    Sammanfattning : Hantaviruses are the causative agents of hemorrhagic fever with renal syndrome (HFRS) in Eurasia, and of hantavirus cardiopulmonary syndrome (HCPS) in the Americas. Transmission to humans usually occurs by inhalation of aerosolized virus-contaminated rodent excreta. LÄS MER