Sökning: "light"

Visar resultat 21 - 25 av 5643 avhandlingar innehållade ordet light.

  1. 21. Shadows and light : examining community mental health competence in North India

    Författare :Kaaren Mathias; Isabel Goicolea; Miguel San Sebastian; Michelle Kermode; Kuruthukulangara Sebastian Jacob; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Global mental health; Gender; Health determinants; India; Mental health competence; Social distance; Social exclusion; Caregiver; Depression; folkhälsa; Public health;

    Sammanfattning : BackgroundGlobally, there is increasing emphasis on the importance of understanding the ways in which social inequality and injustice impact individual and community mental health. Set in the states of Uttar Pradesh and Uttarakhand, India, this thesis examines the complex relationships between individuals, communities and the social environment in relation to mental health. LÄS MER

  3. 22. The Light-up Probe

    Författare :Nicke Svanvik; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; asymmetric cyanine dyes; light-up probes; PNA; real-time PCR; LightUp Probe; fluorescent hybridization probes; homogeneous hybridization assays;

    Sammanfattning : The work presented in this thesis concerns the development of light-up probes and their potential applications in PCR based molecular diagnostics. The light-up probe is a nucleic acid analog (here PNA) oligomer linked to an asymmetric cyanine dye (here thiazole orange) and it combines the excellent hybridization properties of PNA with the large fluorescence enhancement of the dye upon binding to DNA. LÄS MER

  4. 23. Polymer Light Emitting Devices : A study on how the electrode-polymer interface affects the performance of polymer light emitting devices

    Författare :Per Bröms; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The research reported in this thesis is concerned with a new type of semiconductor device that can be realised by using thin films of semiconducting polymers, or conjugated polymers. In this thesis only one family of these conjugated polymers is studied, namely poly-(para-phenylene vinylene) and derivatives thereof. LÄS MER

  5. 24. Light scattering and absorption in tissue - models and measurements

    Författare :Annika M K Enejder; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tissue optical properties; Light absorption; Fluorescence spectroscopy; Atomic and molecular physics; NIR spectroscopy; Fysicumarkivet A:1997:Enejder; Light scattering; Atom- och molekylärfysik;

    Sammanfattning : In this work a number of theoretical models, describing light propagation in matter, have been applied to and developed for the examination of tissue. The aim was to model the light scattering and absorption in tissue in order to improve the understanding of underlying mechanisms of laser-based diagnostics and treatment modalities utilised for cancer and cardiovascular diseases. LÄS MER

  7. 25. Mathematical Modelling of Light Scattering in Paper and Print

    Författare :Per Edström; Mårten Gulliksson; Inge Söderkvist; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mathematical modeling; radiative transfer; solution method; numerical stability; speed; light scattering; light absorption; Kubelka-Munk; errors; reflectance calculations; MATHEMATICS; MATEMATIK;

    Sammanfattning : A problem formulation and a solution method are outlined for the radiative transfer problem in vertically inhomogeneous scattering and absorbing media, using discrete ordinate model geometry. The treatment spans from the physical problem via a continuous formulation, a discretization and a numerical analysis, to an implementation with performance evaluation and application to real-world problems. LÄS MER