Sökning: "Jan Olsson"

Visar resultat 16 - 20 av 77 avhandlingar innehållade orden Jan Olsson.

  1. 16. Designing Work Support Systems – For and With Skilled Users

    Författare :Eva Olsson; Jan Gulliksen; Carl Åborg; Susan Harker; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; human-computer interaction; user involvement; work analysis; work design; user-centred design; Information technology; Informationsteknologi;

    Sammanfattning : Computer users often suffer from poorly designed support systems that hinder them from performing their work efficiently and with satisfaction. The evidence is found in observations of users at work, interviews, evaluations of systems, and numerous reports of systems with poor usability that fail from start. LÄS MER

  3. 17. Social Relations in Youth : Determinants and Consequences of Relations to Parents, Teachers, and Peers

    Författare :Elin Olsson; Jan O. Jonsson; Herman G. van de Werfhorst; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; children; adolescents; youth; social relations; family; peers; teachers; well-being; social background; sex; school; living conditions; Sweden; Sociology; Sociologi; Sociology; sociologi;

    Sammanfattning : The thesis includes three empirical studies on Swedish children’s well-being. Central themes in these studies are how children’s social relations are influenced by and influence other dimensions of their well-being. The studies are framed in the introductory chapter, which includes an international comparison of children’s social relations. LÄS MER

  4. 18. Hope and life-struggle : patients' experiences with Transcatheter Aortic Valve Implantation

    Författare :Karin Olsson; Åsa Hörnsten; Ulf Näslund; Jan Mårtensson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Aortic stenosis; transcatheter aortic valve implantation; experiences; coping; decision-making; health-related quality of life; symptoms; function; omvårdnadsforskning med medicinsk inriktning; Caring Sciences;

    Sammanfattning : The overall aim of this thesis is to explore experiences and self-reported outcomes from Transcatheter Aortic Valve Implantation, TAVI, among people with severe aortic stenosis. The thesis includes four studies. Study I-II are based on interviews performed the day before TAVI and Qualitative Concept Analysis was used for analysis. LÄS MER

  5. 19. G-Convergence and Homogenization of some Monotone Operators

    Författare :Marianne Olsson; Anders Holmbom; Nils Svanstedt; Mårten Gulliksson; Jan Françu; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; G-convergence; homogenization; two-scale convergence; MATHEMATICS; MATEMATIK;

    Sammanfattning : In this thesis we investigate some partial differential equations with respect to G-convergence and homogenization. We study a few monotone parabolic equations that contain periodic oscillations on several scales, and also some linear elliptic and parabolic problems where there are no periodicity assumptions. LÄS MER

  7. 20. Essentially Lipids : Analytical methods for the characterization of lipid materials

    Författare :Petter Olsson; Bengt Herslöf; Jan Holmbäck; Torgny Fornstedt; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lipids; Chromatography; HPLC; Charged Aerosol Detection; Evaporative light scattering detection; mass spectrometry; Analytical Chemistry; analytisk kemi;

    Sammanfattning : This thesis describes analytical methods for chromatographic characterizations of lipids in biological and technical systems.Lipids are a group of compounds with a central role in all known forms of life. In addition to the biological roles, lipids are also components in many products of our daily usage. LÄS MER