Sökning: "sample collection methods"

Visar resultat 1 - 5 av 99 avhandlingar innehållade orden sample collection methods.

  1. 1. Crystallography in Four Dimensions : Methods and Applications

    Författare :Gunilla Carlsson; Janos Hajdu; Dieter Oesterhelt; Vilmos Fülöp; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biophysics; horseradish peroxidase; redox reactions; X-ray crystallography; haem catalysis; molecular movies; radiation damage; Molekylär biofysik; Molecular biophysics; Molekylär biofysik;

    Sammanfattning : The four-electron reduction of dioxygen to water is the most exothermic non-photochemical reaction available to biology. A detailed molecular description of this reaction is needed to understand oxygen-based redox processes. Horseradish peroxidase (HRP) is a haem-containing redox enzyme capable of catalysing the reduction of dioxygen to water. LÄS MER

  3. 2. Improved Techniques for Protein Analysis Focusing on Membrane Proteins and Hydrophobic Peptides

    Författare :Theres Redeby; Åsa Emmer; Jonas ergquist; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Integral membrane proteins; Hydrophobic peptides; Sample handling; MALDI-TOF-MS; Structured sample support; CE; fraction collection; microchannel; Analytical chemistry; Analytisk kemi;

    Sammanfattning : In this thesis, the vital cell functions performed by integral membrane proteins (IMPs) are briefly discussed. Such proteins are under-represented in most protein studies due to the hydrophobic nature of IMPs, which seriously complicate their solubilization, sample handling, preparation, separation and analysis. LÄS MER

  4. 3. Preanalytical errors in hospitals : implications for quality improvement of blood sample collection

    Författare :Olof Wallin; Christine Brulin; Kjell Grankvist; Johan Hultdin; Bethany van Guelpen; Ania Willman; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; medical errors; preanalytical; quality improvement; questionnaire; venous blood sampling; Clinical chemistry; Klinisk kemi;

    Sammanfattning : Background: Most errors in the venous blood testing process are preanalytical, i.e. they occur before the sample reaches the laboratory. Unlike the laboratory analysis, the preanalytical phase involves several error-prone manual tasks not easily avoided with technological solutions. LÄS MER

  5. 4. Dying to count : mortality surveillance methods in resource-poor settings

    Författare :Edward F Fottrell; Peter Byass; Heiko Becher; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mortality; surveillance; verbal autopsy; survey methods; Epidemiology; Epidemiologi;

    Sammanfattning : Background Mortality data are critical to understanding and monitoring changes in population health status over time. Nevertheless, the majority of people living in the world’s poorest countries, where the burden of disease is highest, remain outside any kind of systematic health surveillance. LÄS MER

  7. 5. Oral and Oropharyngeal Cancer - Aspects on Epidemiology and Prognostic Markers

    Författare :Karin Annertz; Lund näs- och halssjukdomar Öron-; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Tongue cancer; SCC; oral cancer; oropharyngeal cancer; survival; incidence; HPV; human papillomavirus; alpha B-crystallin; sample collection methods; prognostic factor;

    Sammanfattning : Head and neck cancer is a heterogeneous group of tumours, although histopathologically, >95% are squamous cell carcinomas (SCC). Some tumours respond better to therapy than others. Not enough is known to predict the outcome and tailor individualised treatment. LÄS MER