Search for dissertations about: "ultraviolet"

Showing result 1 - 5 of 255 swedish dissertations containing the word ultraviolet.

  1. 1. Ultraviolet Radiation Cataract

    Author : Konstantin Galichanin; Karolinska Institutet; Karolinska Institutet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; lens;

    Abstract : Cataract is the leading cause of blindness in the world. Epidemiological and experimental evidence supports a link between mid-range ultraviolet radiation (UVR-B) exposure and the development of cataract. READ MORE

  2. 2. Ultraviolet vertical-cavity surface-emitting lasers and vertical microcavities for blue lasers

    Author : Filip Hjort; Chalmers University of Technology; []
    Keywords : GaN; microcavity; electrochemical etching; vertical-cavity surface-emitting laser; AlGaN; electrical conductivity; nanostructures; ultraviolet; distributed Bragg reflector;

    Abstract : III-nitride materials are used for ultraviolet (UV) and visible light emitters. One such light source is the vertical-cavity surface-emitting laser (VCSEL) that could find applications within areas ranging from sterilization and medical treatment to car headlights and augmented reality displays. READ MORE

  3. 3. Cataract from ultraviolet radiation

    Author : Stefan Löfgren; Karolinska Institutet; Karolinska Institutet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; Cataract; ultraviolet radiation; lens; rat; transmittance; pigment; age; pupil size.;

    Abstract : Cataract is the major cause of low vision and blindness in the world. Epidemiological and experimental studies link cataract to (solar) ultraviolet radiation (UVR) exposure. Current safety limits of UVR exposure are based on animal experiments, but many factors are less well known in UVR cataractogenesis. READ MORE

  4. 4. Ultraviolet radiation and cornea

    Author : Alexander Podskochy; Karolinska Institutet; Karolinska Institutet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; Cornea; UVR; keratocytes; apoptosis; Fas ligand; hyaluronan; biglycan; rabbit; wound healing.;

    Abstract : Results. UVR at subthreshold doses did not produce any corneal damage that could be detected in the light microscope. Apoptosis was detected to be one important mechanism leading to corneal cell damage after UVR exposure at photokeratitis doses. Photokeratitis doses at 270, 280, and 290 inn led to a superficial corneal damage. READ MORE

  5. 5. Ultraviolet Radiation and Squamous Cell Carcinoma in Human Skin

    Author : Cecilia Wassberg; Olle Larkö; Uppsala universitet; []
    Keywords : Medical sciences; Ultraviolet radiation; squamos cell carcinoma; incidence; sunscreens; p53; DNA damage; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Dermatology and Venerology; dermatologi och venereologi;

    Abstract : Ultraviolet radiation (UVR) is a major risk factor for development of skin cancer. UVR-induced DNA damage and a dysfunctional p53 protein are important steps in the development of squamous cell carcinoman in human skin (SCC). READ MORE