Sökning: "chick"

Visar resultat 1 - 5 av 39 avhandlingar innehållade ordet chick.

  1. 1. Control of early development of the lens and the retina

    Författare :Tanushree Pandit; Lena Gunhaga; Paola Bovolenta; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lens; retina; BMP; FGF; chick; Developmental Biology; miljömedicinsk utvecklingsbiologi;

    Sammanfattning : The nervous system is composed of two separate compartments, the central and the peripheral nervous system. The peripheral nervous system (PNS) composed mainly of sensory organs transmits sensory information to the central nervous system (CNS) comprising the brain and the spinal cord. LÄS MER

  3. 2. Neuronal Development in the Embryonic Retina : Focus on the Characterization, Generation and Development of Horizontal Cell Subtypes

    Författare :Per-Henrik Edqvist; Finn Hallböök; Steven McLoon; Uppsala universitet; []
    Nyckelord :Neurosciences; Activin; Chick; Follistatin; Interneuron; Isl1; Lim1; Migration; Neurogenesis; Prox1; Transcription factor; Neurovetenskap;

    Sammanfattning : Horizontal cells are retinal interneurons that modulate the output from photoreceptors. Two horizontal cell (HC) subtypes are commonly identified in the vertebrate retina: axon-bearing and axon-less HCs. LÄS MER

  4. 3. Specification of the lens and olfactory placodes and dorsoventral patterning of the telencephalon

    Författare :My Sjödal; Juha Partanen; Umeå universitet; []
    Nyckelord :telencephalon; olfactory; lens; BMP; RA; FGF; Wnt; development; placode; gradient; chick; nervous system; dorsoventral; medicinsk utvecklings- och neurobiologi; Developmental Neurosciences;

    Sammanfattning : The vertebrate nervous system is a highly complex and intriguing structure with diverse functions. To understand the functional nervous system, we first have to be aware of how it is assembled during development. LÄS MER

  5. 4. Behaviour and life-history responses to chick provisioning under risk of nest predation

    Författare :Sönke Eggers; David Winkler; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Chick provisioning; clutch size; delayed dispersal; nest concealment; nest predation; parental care; population decline; Perisoreus infaustus; Siberian jay; Biologi; Biology; Biologi; populationsbiologi; Population Biology;

    Sammanfattning : This thesis examines risk management in breeding Siberian jays (Perisoreus infaustus), which is indigenous to the northern taiga. Parent behaviour and the nest are cryptic. A new nest is built each year. It is placed on spruce or pine branches close to the trunk and well insulated with lichens, feathers and reindeer hair. LÄS MER

  7. 5. The utilization of the yolk cholesterol by the chick embryo and the young chick

    Författare :Olof Svanberg; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER