Sökning: "färgen blå"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden färgen blå.

  1. 1. Multimodal sentinel lymph node imaging using nanoscale-tailored particles; The importance of particle size

    Författare :Pontus Kjellman; Lund Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; multimodal contrast agent; USPIO; sentinel lymph node; in vivo; EL-4 tumor;

    Sammanfattning : As a cancer grows it will, at a certain stage of disease progression, start spreading in the body. For several types of cancer this spreading will first occur through the lymphatic system and the first place where metastatic cell will be encountered is the first lymph node that drains the area where the tumor is located. LÄS MER

  3. 2. Dynamics in Blue Emitting Metal Halide Perovskites for Light Emitting Diodes

    Författare :Max Karlsson; Feng Gao; Tze Chien Sum; Barry P. Rand; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Perovskites; Light-emitting diodes; Stability; Efficiency;

    Sammanfattning : Lighting comprises a large part of the global electricity consumption as of today, and the use of lighting in illumination and displays is only projected to grow. It is therefore imperative to meet this energy demand, not only by means of greener energy production, but also with materials that are both more efficient to fabricate as well as to use. LÄS MER

  4. 3. Colour Vision in Birds : Comparing behavioural thresholds and model predictions

    Författare :Peter Olsson; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gallus gallus; receptor noise; visual modelling; animal training; colour discrimination; colour constancy;

    Sammanfattning : Birds use colour vision for many biologically relevant behaviours such as foraging and mate choice. Bird colour vision is mediated by four types of single cones, giving them an extra dimension of colour information compared to trichromatic humans. LÄS MER

  5. 4. On the use of light for the characterization and treatment of malignant tumours

    Författare :Claes af Klinteberg; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diffusion equation; Aminolevulinic acid; Protoporphyrin IX; Photodynamic therapy; Fluorescence spectroscopy; Fluorescence imaging; Laser-Doppler perfusion imaging; Atom- och molekylärfysik; Atomic and molecular physics; Multiple scattering; Tissue optics; Tissue optical properties; Fysicumarkivet A:1999:Klinteberg;

    Sammanfattning : Some aspects on the use of light for tissue characterization and treatment of malignant tumours are discussed within this thesis. The work presented aims at improving optical techniques for tissue characterization, especially to detect malignant and pre-malignant lesions. LÄS MER

  7. 5. Biomedical and atmospheric applications of optical spectroscopy in scattering media

    Författare :Johannes Swartling; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Turbid media; Tissue optics; Tissue optical properties; Multiple scattering; Radiative transfer; Diffusion equation; Monte Carlo method; Time-resolved spectroscopy; Atomic and molecular physics; Integrating spheres; Atom- och molekylärfysik; Fysicumarkivet A:2002:Swartling;

    Sammanfattning : Spectroscopic analysis of scattering media is difficult because the effective path length of the light is non-trivial to predict when photons are scattered many times. The main area of research for such conditions is biological tissues, which scatter light because of variations of the refractive index on the cellular level. LÄS MER