Search for dissertations about: "skin effect"

Showing result 1 - 5 of 390 swedish dissertations containing the words skin effect.

  2. 1. 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. 2. Skin barrier responses to moisturizers

    Author : Izabela Buraczewska; Hans Törmä; Marie Lodén; Berit Berne; Magnus Lindberg; Ehrhardt Proksch; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; skin barrier function; moisturizers; long-term treatment; transepidermal water loss; gene expression; skin pH; lipids; urea; Dermatology and venerology; Dermatologi och venerologi;

    Abstract : Moisturizers are used in various types of dry skin disorders, but also by people with healthy skin. It is not unusual that use of moisturizers is continued for weeks, months, or even years. READ MORE

  5. 3. Microvascular inflammatory response in the skin

    Author : Vladimir Evilevitch; Lunds universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; tomografi; medicinsk instrumentering; Physiology; Fysiologi; radiologi; Klinisk fysiologi; medical instrumentation; tomography; radiology; Clinical physics; sodium nitroprusside; terbutaline; anandamide; TRPV1; skin prick test; vanilloid receptor; skin microcirculation; laser Doppler imaging; Plasma exudation; vasodilatation;

    Abstract : This thesis examines the microvascular inflammatory response in the skin. The microvascular response includes vasodilatation and plasma exudation. In the first three studies, the combined response was measured in guinea pig skin with a technique based on detection of radiolabelled protein. READ MORE

  6. 4. Vibration exposure of the glabrous skin of the human hand

    Author : Ronnie Lundström; Ludwik Liszka; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vibration; hand; skin; mechanical impedance; mechanoreceptors; tactile perception; high-frequency;

    Abstract : An occupational exposure to hand-arm vibration can cause a complex of neurological, vascular and musculo-skeletal disturbances, known as the 'vibration syndrome'. However, the underlying pathophysiological mechanisms are not at all clear. READ MORE

  7. 5. Modelling of Terahertz Planar Schottky Diodes

    Author : Aik-Yean Tang; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; S-parameter extraction; Electro-thermal; Schottky diodes; Skin effect; Electromagnetic; Frequency multipliers; High-power frequency multiplier; Current crowding; Proximity effect; Submillimetre wave generation and detection; Geometric modelling; Gallium Arsenide;

    Abstract : This thesis deals with the modelling of THz planar Schottky diodes, focusing on analyses of the geometry- dependent parasitics and the diode chip thermal management. Moving towards higher operating frequencies, the electromagnetic couplings pose significant limitations on the diode performance. READ MORE