Sökning: "ytstruktur"

Visar resultat 11 - 14 av 14 avhandlingar innehållade ordet ytstruktur.

  1. 11. Formation and properties of polyelectrolyte multilayers on wood fibres : influence on paper strength and fibre wettability

    Författare :Rikard Lingström; Lars Wågberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polyelectrolyte; multilayer; adsorption; reflectance; contact angle; dynamics; paper; mechanical properties; individual; wood fibre; Chemistry; Kemi;

    Sammanfattning : The work in this licentiate thesis examines the adsorption of polyelectrolyte multilayers (PEM) onto wood fibres as a new way to influence the properties of the fibre surfaces and hence the fibres. Fundamental aspects of PEM formation on wood fibres have been studied, and discussed in terms of paper strength and wood fibre wettability. LÄS MER

  3. 12. Activation of murine cytotoxic cells with interelukin-2 and the bacterial superantigen staphylococcal entertoxin A

    Författare :Hans Belfrage; Lund Kirurgi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunologi; transplantation; serology; Immunology; cytokine; tolerance; LAK; NK; serologi; CTL; Staphylococcal enterotoxin A; SEA; Interleukin-2; murine; deletion; anergy;

    Sammanfattning : Natural killer (NK) cells and T lymphocytes are the major effector cells that can recognize and kill tumor cells. NK cells have a constitutive cytotoxic activity and kill a wide spectrum of tumor cells while T cells recognize specific tumor antigens and need to be activated through their TCR to differentiate into cytotoxic T lymphocyte (CTL) killers or T helper cells. LÄS MER

  4. 13. Analysis of Complement Deficiency States. With Focus on Molecular Characterization of C4 and Properdin Deficiency

    Författare :Gunilla Nordin Fredrikson; Kardiovaskulär forskning - immunitet och ateroskleros; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mycology; virology; bacteriology; Complement C4; Complement; Complement Screening; Deficiency; Meningococcal Disease; Properdin; Properdin Expression; Microbiology; Sequencing; Mikrobiologi; bakteriologi; virologi; mykologi;

    Sammanfattning : Complement deficiency is associated with an increased risk for invasive infection and immune complex disease. Screening for identification of complement-deficient patients is essential and a new ELISA-based procedure for detection of complement deficiency is described. LÄS MER

  5. 14. Rektorers normer i ledarskapet för skolutveckling

    Författare :Helena Hallerström; Rättssociologiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social sciences; norm analyses; norm model; structures; norm supporting; norms; local authorities; law; decentralisation; steerage; principals´ domain; domain; principals´ norms; curriculum development; educational development; education; development; leadership; headmaster; Sociology of law; principal; Juridical science; Administrative law; Sociology; Samhällsvetenskaper; Rättsvetenskap; juridik; Förvaltningsrätt; Sociologi;

    Sammanfattning : This thesis puts a focus on school leadership and school development. The local authorities took over responsibility for public education in 1991. At the same time, steerage by rules was abandoned in favour of steerage by goal-setting and result evaluation. The principal is an important link in this chain of steerage. LÄS MER