Search for dissertations about: "case-only study"

Showing result 1 - 5 of 9 swedish dissertations containing the words case-only study.

  2. 1. Environmental factors and p53 mutation spectrum in lung cancer

    Author : Anna Bessö; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Lung cancer; p53; radon; tobacco smoking; arsenic; environmental tobacco smoke; ETS; case-only study; case-control study;

    Abstract : The use of molecular biomarkers, such as mutations in the p53 gene, has raised expectations for improving the resolution power in epidemiological studies. In this thesis we assessed the influence of smoking, environmental tobacco smoke (ETS), residential radon and arsenic on the p53 mutation prevalence and spectrum in lung tumors. READ MORE

  4. 2. Classifications and volume bounds of lattice polytopes

    Author : Gabriele Balletti; Benjamin Nill; Martin Henk; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this licentiate thesis we study relations among invariants of lattice polytopes, with particular focus on bounds for the volume.In the first paper we give an upper bound on the volume vol(P^*) of a polytope P^* dual to a d-dimensional lattice polytope P with exactly one interiorlattice point, in each dimension d. READ MORE

  5. 3. Pictorial Primates: A Search for Iconic Abilities in Great Apes

    Author : Tomas Persson; Kognitionsvetenskap; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; match-to-sample; comparative cognition; categorization; Pan paniscus; Gorilla gorilla; signs; reference; iconicity; symbols; pictures; primatology; object-choice-task; enculturation;

    Abstract : Pictures and other iconic media are used extensively in psychological experiments on nonhuman primate perception, categorisation, etc. They are also used in everyday interaction with primates, and as pure entertainment. READ MORE

  6. 4. Epidemiology and etiology of pancreatic cancer

    Author : Jiaqi Huang; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Pancreatic cancer is one of the most devastating malignancies with an extremely high fatality, resulting that its mortality rate almost equals to incidence rate. Although primary prevention is of upmost importance, the underlying etiology of this cancer remains largely unknown. READ MORE

  7. 5. Determinants of interval cancer and tumor size among breast cancer screening participants

    Author : Fredrik Strand; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Breast cancer is the most common cancer of women in Sweden and globally. In the more affluent countries, mammography screening has been in place for a few decades and has successfully reduced mortality. READ MORE