Sökning: "Chick"

Visar resultat 21 - 25 av 39 avhandlingar innehållade ordet Chick.

  1. 21. Across landscapes and seascapes : The movement ecology of diving and flying guillemots and gulls during breeding

    Författare :Thomas J. Evans; Evolutionär ekologi; []
    Nyckelord :Uria aalge; Larus fuscus; Laridae; animal flight; foraging ecology; movement ecology; seabirds;

    Sammanfattning : Most seabirds breed colonially, at which time they make central-place foraging trips. Parents must collect food both for themselves and for egg production/chick-rearing. LÄS MER

  3. 22. Early development of the olfactory placode and early rostrocaudal patterning of the caudal neural tube

    Författare :Esther Maier; Lena Gunhaga; Fernando Giraldez; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; olfactory placode; caudal neural tube; Wnt; FGF; RA; BMP; Notch; patterning; Developmental biology; Utvecklingsbiologi; molekylärbiologi; Molecular Biology;

    Sammanfattning : The development of the nervous system is a complex process. Cell divisions, cell differentiation and signalling interactions must be tightly regulated. To comprehend the mature nervous system, we have to understand its assembly during development. LÄS MER

  4. 23. Regulation of Angiogenesis

    Författare :Helena Larsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; angiogenesis; anti-angiogenesis; endostatin; latent antithrombin; prelatent antithrombin; Crk; Genetik; Clinical genetics; Klinisk genetik; Pathology; patologi;

    Sammanfattning : Angiogenesis is the formation of new blood vessels from pre-existing ones. New blood vessel formation is fundamental in processes such as reproduction, embryonic development and wound healing. Growth of neoplasms is accompanied by increased angiogenesis. This thesis describes cellular and molecular mechanisms of importance for angiogenesis. LÄS MER

  5. 24. Early Rostrocaudal Patterning of the CNS

    Författare :Ulrika Nordström; Thomas Edlund; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CNS development; neural patterning; neural specification; Wnt; FGF; RA; Isthmic organizer; motor neurons; rostrocaudal patterning.; Developmental biology; Utvecklingsbiologi;

    Sammanfattning : The transformation of an initially uniform population of epiblast cells into an intricately complex central nervous system (CNS) is one of the most fascinating processes during embryonic development. Presumptive neural cells are initially specified as cells of forebrain character. LÄS MER

  7. 25. Microenvironmental regulation of neural stem cell differentiation

    Författare :Esra Karaca; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The central nervous system consists of complex networks of neurons and other specialized cells that process information from within and outside the organism to create an output. The development of this complex machinery requires spatio-temporal regulation of neural stem cell (NSC) differentiation into the right type of cells at the right time. LÄS MER