Search for dissertations about: "ultraviolet"

Showing result 6 - 10 of 301 swedish dissertations containing the word ultraviolet.

  2. 6. 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

  4. 7. The role of MTH1 in ultraviolet radiation-induced mutagenesis

    Author : Asal Fotouhi; Siamak Haghdoost; Harry Vrieling; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ultraviolet radiation; MTH1; reactive oxygen species; 8-oxo-dGTP; 2-OH-dATP; micronucleus; molekylärgenetik; Molecular Genetics;

    Abstract : Ultraviolet radiation (UVR) is known to be highly mutagenic. What types of DNA lesions that are induced by different UVR wavelengths are still a matter of debate. UVR induces mutagenesis mostly by the formation of photoproducts and the induction of reactive oxygen species (ROS). READ MORE

  5. 8. Ultrafast opto-optical control of extreme ultraviolet light pulses

    Author : Samuel Bengtsson; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; extreme ultraviolet; controlled emission; Free induction; time-dependent spectroscopy; noble; High order harmonic generation; phase-control; Fysicumarkivet A:2017:Bengtsson;

    Abstract : Extreme ultraviolet (XUV) light is a valuable frequency range for ultrafast optics experiments. The short wavelength is a requirement for ultrashort pulses, which are widely used to characterize fast dynamics. Additionally, the high photon energy enables quantum control of high frequency transitions in atoms. READ MORE

  6. 9. Plumage Colours and the Eye of the Beholder : The Ecology of Colour and its Perception in Birds

    Author : Olle Håstad; Mats Björklund; Innes Cuthill; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; ultraviolet; colour vision; opsin; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : Virtually all diurnal birds have tetrachomatic vision based on four different colour receptors. As a result, birds are potentially able to perceive their environment in twice as many colours as humans and four times as many colours compared to most other mammals, which are dichromatic. READ MORE

  7. 10. Novel Technique for Analysing Volatile Compounds in Indoor Dust : Application of Gas Chromatography – UV Spectrometry to the Study of Building-Related Illness

    Author : Anders Nilsson; Christer Tagesson; Verner Lagesson; Göran Strid; Linköpings universitet; []
    Keywords : acrylates adverse effects; air pollution; ultraviolet; indoor analysis; chromatography; gas; environmental exposure adverse effects; sick building syndrome etiology; dust; volatilization; Spectrophotometry; MEDICINE; MEDICIN;

    Abstract : It is now generally acknowledged that particulate air pollution can cause respiratory symptoms and that indoor dust particles may be associated with mucous membrane irritation and odour annoyance. One reason for this may be that dust particles adsorb large quantities of gases and other volatile compounds. READ MORE