Sökning: "central functions"

Visar resultat 21 - 25 av 668 avhandlingar innehållade orden central functions.

  1. 21. Immune functions of intestinal dendritic cells

    Författare :Katarzyna Müller Luda; Slemhinnans immunologi; []
    Nyckelord :;

    Sammanfattning : The intestinal surface is daily challenged with tremendous amount of foreign material derived our diet and from the commensal bacteria that densely populate the mucosal surface. Occasionally the gut mucosa is exposed to pathogens trying to enter our body. LÄS MER

  3. 22. Microglial Glutamate Transporters - Regulation of Expression and Possible Physiological Functions

    Författare :Mikael Persson; Göteborgs universitet; []
    Nyckelord :anaphylatoxin; central nervous system; herpes simplex virus; glutamate transport; glutathione; GLT-1; lipopolysaccharide; microglia; neuroinflammation; oxidative stress; protection; tumour necrosis factor-alpha;

    Sammanfattning : Microglia are considered as the immunocompetent cells of the central nervous system (CNS). Being the first line of defence, they have prominent roles in monitoring the homeostasis and the extracellular milieu and can rapidly and specifically react to any disturbances such as brain trauma, ischemia, neurodegenerative diseases, or infections. LÄS MER

  4. 23. Optics for Low Vision Enabling

    Författare :Jörgen Gustafsson; Certec - Rehabiliteringsteknik och Design; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Eccentric viewing; Low vision optics; Low vision rehabilitation; People with low vision; Preferred retinal; locus PRL ; Resolution; Visual acuity; Ophtalmology; Medicinsk teknik; Medical technology; Rehabilitering medicinsk och social ; rehabilitation; revalidation; kinesitherapy; Oftalmologi; Physical medicine; Contrast sensitivity; Detection; Eccentric correction; CFL ; Central visual field loss; Central scotoma; Aberrations; Astigmatism;

    Sammanfattning : For people with central visual field loss, eccentric vision is all that they have to rely on. Even for those who learn how to correctly utilize their eccentric vision, it will never be as good as the central for two entirely different reasons: the off-axis optics of the eye can result in large refractive errors, and the low function of the peripheral retina. LÄS MER

  5. 24. Robust Numerical Wall Functions Implemented in OpenFOAM

    Författare :Jon-Anders Bäckar; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; impinging jet; numerical wall function; Computational Fluid Dynamics; speed-up; OpenFOAM;

    Sammanfattning : This thesis presents two new numerical wall models for computing Reynolds-Averaged-Navier-Stokes (RANS) equations with low-Reynolds-number turbulence models. Theobjective is to considerably reduce the total central processing unit (CPU) cost of thenumerical simulations of wall bounded flows while maintaining the accuracy of anylow-Reynolds-number turbulence model. LÄS MER

  7. 25. Managing the Urban Greens : Maintaining ecological functions in human dominated landscapes

    Författare :Erik Andersson; Thomas Elmqvist; Jon Sadler; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Natural Resources Management; naturresurshushållning;

    Sammanfattning : At the core of this thesis lie two realisations: First, like other ecosystems, those in urban landscapes provide humans with a number of ecosystem services, some recognized while others are not. Second, in cities just as in other intensively used social-ecological systems, management is of central importance. LÄS MER