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Visar resultat 16 - 18 av 18 avhandlingar som matchar ovanstående sökkriterier.

  1. 16. Experimental studies of corneal neovascularisation

    Författare :Branka Samolov; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The cornea contains no vessels, which is a prerequisite for the maintenance of its transparency. Vessel ingrowth leads to opacification resulting in visual impairment, sometimes complete blindness. LÄS MER

  3. 17. Aspects of heterogeneity : effects of clear-cutting and post-harvest extraction of bioenergy on plants in boreal forests

    Författare :Marcus Åström; Christer Nilsson; Katherine Frego; Umeå universitet; []
    Nyckelord :aspect; clear-cutting; disturbance; habitat quality; liverworts; logging residues; mosses; resilience; slash; slope; topography;

    Sammanfattning : Abstract. The objectives of this thesis are to evaluate (1) the influence of slope aspect on boreal plant responses to clear-cutting and (2) the effects of post-harvest extraction of bioenergy (logging residues or slash) on plant composition, richness and performance in clear-cuts. LÄS MER

  4. 18. On the actions of neurotrophic factors on the chromaffin cells of the adrenal medulla

    Författare :Petter Förander; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Neural crest; chromaffin cells; neurotrophic factors; NGF; NT-3; NT4; CNTF; GDNF; TGFß; FGF2; glucocorticoids; Intra oculartransplantation ; primary cultures; neurite outgrowth;

    Sammanfattning : Chromaffin cells producing adrenaline or noradrenaline are the predominant cell type in the adrenal medulla, but ganglion cells and Schwann cells are also present. All cells of the adrenal medulla are derived from the neural crest, which is a transient neuroectoderm-derived embryonic structure. LÄS MER