Sökning: "darkness"

Visar resultat 21 - 25 av 88 avhandlingar innehållade ordet darkness.

  1. 21. Total internal reflection ellipsometry : principles and applications

    Författare :Michal Poksinski; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Spectroscopic ellipsometry has been used under conditions of total internal reflection to form a new measurement technique called Total Internal Reflection Ellipsometry. When measurement settings are appropriate for surface plasmon resonance to occur it is possible to combine the advantages of both ellipsometry and surface plasmon resonance and obtain very high sensitivity and precision. LÄS MER

  3. 22. Light shapes spaces : experience of distribution of light and visual spatial boundaries

    Författare :Ulrika Wänström Lindh; Göteborgs universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; Practise-based design research; distribution of light; lighting design; architecture; enclosure; perceived dimensions; atmosphere; light zones; light topography; visual spatial boundaries; Practise-based design research; distribution of light; lighting design; architecture; enclosure; perceived dimensions; atmosphere; light zones; light topography; visual spatial boundaries;

    Sammanfattning : Light enables us to experience space. The distribution of light is vital for spatial experience but has not been the main focus of previous research on lighting. The lighting designer’s professional knowledge is to a great extent experience-based and tacit. LÄS MER

  4. 23. New pharmacological aspects of melatonin

    Författare :Lena G. E. Mårtensson; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Melatonin is a hormone that takes part in the regulation of biological rhythms. It is produced in the pineal gland and is stimulated by darkness and inhibited by exposure to light. LÄS MER

  5. 24. Neuroendocrinology of agonostic interaction and social signalling in Artic charr (Salvelinus alpinus) : Studies on the neuroendocrine regulation of aggressive behaviour, stress responses and skin colour

    Författare :Erik Höglund; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Brain monoamines; social signalling; POMC; skin colour; stress; Salmonid; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; limnologi; Limnology;

    Sammanfattning : This thesis shows that socially subordinate Arctic charr (Salvelinus alpinus) display elevated brain serotonergic (5-HT) and norepinephric activity along with a chronic activation of the hypothalamic-pituitary-interrenal (HPI) axis, including elevated plasma concentrations of á-MSH. Furthermore, subordinate fish showed an inhibition of aggressive behaviour and darker body coloration, skin darkness being positively correlated with plasma á-MSH. LÄS MER

  7. 25. Den livsupplysande texten : En läsning av N.F.S. Grundtvigs pedagogiska skrifter

    Författare :Bosse Bergstedt; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; N F S Grundtvig; Life enlightenment; Spiritual force; Interaction; Pedagogical text; Deconstructive reading; Rhetoric; Folk High School; University;

    Sammanfattning : N F S Grundtvig, 1783-1872, was the founder of the folkhögskola, ("Folk High School", Residential colleges of general, liberal education for adolescents and adults), but he also was a pastor, a poet, and a historian. The dissertation presents an overview of Grundtvig's pedagogical thoughts, including his ideas of both the folkhögskola and a Nordic University. LÄS MER