Sökning: "E Wikström"

Visar resultat 11 - 15 av 37 avhandlingar innehållade orden E Wikström.

  1. 11. Molecular genetics of B- and T-lymphocyte development

    Författare :Ingela Wikström; Dan Holmberg; Inga-Lill Mårtensson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; lymphocyte development; Dmu protein; transcription factor; bHLH; E2-2; T cell; B cell; marginal zone; Medical genetics; Medicinsk genetik;

    Sammanfattning : Lymphocytes are essential for the generation of specific immunity. Development of B cells in the bone marrow and T cells in the thymus have several analogous features, and are tightly regulated processes. Even though there is an increasing amount of information concerning lymphopoiesis, a lot of questions remain. LÄS MER

  3. 12. On the security of mix-nets and hierarchical group signatures

    Författare :Douglas Wikström; Johan Håstad; Moni Naor; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datalogi;

    Sammanfattning : In this thesis we investigate two separate cryptographic notions: mix-nets and hierarchical group signatures. The former notion was introduced by Chaum (1981). The latter notion is introduced in this thesis, but it generalizes the notion of group signatures which was introduced by Chaum and Heyst (1991). LÄS MER

  4. 13. Approaching Large Eddy Simulation of Cavitating Flows for Marine Applications

    Författare :Niklas Wikström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VOF; OpenFOAM; CFD; LES; Navier-Stokes; incompressible free surface flow; Cavitation;

    Sammanfattning : Cavitation is a major concern in naval craft design as well as in the shipping industry. Although the nature of cavitation is not fully understood, propellerdesigns are presently improved by experimental analysis of the phenomena. LÄS MER

  5. 14. Synthesis and protein curing abilities of membrane glycolipids

    Författare :Malin Wikström; Åke Wieslander; Anthony Lee; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; membrane; lipids; glycolipids; nonbilayer-prone; Biochemistry; Biokemi;

    Sammanfattning : There are many types of membrane lipids throughout Nature. Still little is known about synthesizing pathways and how different lipids affect the embedded membrane proteins. The most common lipids are glycolipids since they dominate plant green tissue. Glycolipids also exist in mammal cells as well as in most Gram-positive bacteria. LÄS MER

  7. 15. I tweet like I talk : Aspects of speech and writing on Twitter

    Författare :Peter Wikström; Erica Sandlund; Solveig Granath; Andrea C. Schalley; Ruth Page; Karlstads universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social media; Twitter; speech; writing; orality; literacy; CMC; remediation; English; Engelska;

    Sammanfattning : This dissertation investigates linguistic and metalinguistic practices in everyday Twitter discourse in relation to aspects of speech and writing. The overarching aim is to investigate how the spoken–written interface is reconfigured in the digital writing spaces of social media. LÄS MER