Search for dissertations about: "stratum"

Showing result 11 - 15 of 47 swedish dissertations containing the word stratum.

  2. 11. Humectants and skin : effects of hydration from molecule to man

    Author : Cathrine Albèr; Malmö högskola; []
    Keywords : skin; stratum corneum; hydration; hyaluronan; glycerol; urea;

    Abstract : Humectants belong to a group of hydrophilic compounds frequently used in skin care products with the aim to diminish the clinical symptom of skin dryness. The biochemical and biophysical mechanisms by which humectants interact with the skin barrier are far from fully understood. READ MORE

  4. 12. Polarization transfer solid-state NMR for studying soft matter: From surfactants to the stratum corneum

    Author : Agnieszka Nowacka; Fysikalisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The work presented in this thesis is dedicated to theoretical development, experimental testing and application of polarization transfer solid-state nuclear magnetic resonance (PT ssNMR). PT ssNMR is an analytical tool which provides detailed information about molecular mobility in model or simple soft matter systems at the low water content regime, enabling the creation of phase diagrams. READ MORE

  5. 13. Electrical impedance related to experimental induced changes of human skin and oral mucosa

    Author : Ingrid Nicander; Karolinska Institutet; Karolinska Institutet; []
    Keywords : bioengineering; dielectric properties; electrical impedance; irritation; non-invasive; oral mucosa; skin; skin barrier; stratum comeum; stratum corneum lipids;

    Abstract : There is a need for an objective and non-invasive method for assessing reactions in the human skin and oral mucosa, particularly for weak reactions. During the past few decades, several methods of measuring irritant responses have indeed been developed for the skin and to some extent also for the oral mucosa. READ MORE

  6. 14. The skin barrier : structure and physical function

    Author : Lars Petter Oskar Norlén; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The objective of the project "The skin barrier - structure and physical function" was to characterise in detail the human skin barrier structurally and functionally. The thesis work includes in-vivo studies, in-vitro studies and studies on pure model systems. READ MORE

  7. 15. Molecular Evolution of the Vertebrate Genome

    Author : Kiwoong Nam; Hans Ellegren; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this thesis, I studied molecular evolution of the vertebrate genome, focusing on sex chromosomes, protein coding genes, and genome size variation. The evolutionary history of avian sex chromosomes was analyzed by comparing substitution rate among 12 gametologous gene pairs on the Z and W chromosomes. READ MORE