Sökning: "Per Kempe"

Hittade 5 avhandlingar innehållade orden Per Kempe.

  1. 1. Multiple Sclerosis in relation to sex steroid exposure

    Författare :Per Kempe; Jan Brynhildsen; Mats Hammar; Matts Olovsson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Multiple sclerosis (MS) is a potentially severe chronic inflammatory disease of the central nervous system (CNS) and is usually diagnosed between 20 and 40 years of age. The incidence of MS is two to three times higher among women and the type and course of the disease often differ between the sexes. LÄS MER

  3. 2. Försäkringskassorna och de försäkrade : en sociologisk studie i samhällsservice

    Författare :Per Kempe; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 3. Rate as the relation of changes in two quantities : A variation theory perspective of learning rate of change

    Författare :Per Håkansson; Robert Gunnarsson; Ulla Runesson Kempe; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; rate of change; slope; covariation; functions; mathematics teaching and learning; variation theory; learning study; förändringstakt; lutning; samvariation; funktioner; matematiklärande; variationsteori; learning study;

    Sammanfattning : This thesis comprises three original papers about learning rate of change in school mathematics. The overall aim of the thesis is to contribute with knowledge in this particular area of research. Within this aim, each of the original papers contribute with its own perspective. LÄS MER

  5. 4. Bruksmakt och maktbruk : Robertsfors AB 1897-1968

    Författare :Per Holmström; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; decision-making; decision power; decision process; family firm; for¬est industry;

    Sammanfattning : This thesis studies seven strategic decisions made in the family-owned forestry company Robertsfors AB, in Northern Sweden. During the present century Ro­bertsfors AB has developed from a patriarchally concern controlled into a capi­talistic industrial company. This also meant a radical change in the decision­making process. LÄS MER

  7. 5. Unraveling the importance of solid and adsorbed phase mercury speciation for methylmercury formation, evasion and bioaccumulation

    Författare :Sofi Jonsson; Erik Björn; Ulf Skyllberg; Erik Lundberg; Per Persson; Robert Mason; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mercury; methylmercury; aquatic systems; estuary; Hg; MeHg; bioaccumulation; methylation; demethylation; evasion; sediment; water; terrestrial sources; atmospheric sources; climate change; eutrophication;

    Sammanfattning : Monomethylmercury, MeHg, is formed under anoxic conditions in waters, sediments and soils and then bioaccumulated and biomagnified in aquatic food webs, negatively effecting both human and wildlife health. It is generally accepted that precipitation of mercury, Hg, and adsorption of Hg to e.g. LÄS MER