Sökning: "Fredrik Nyberg"

Hittade 3 avhandlingar innehållade orden Fredrik Nyberg.

  1. 1. Environmental and genetic factors in lung cancer : epidemiologocal and biomolecular studies focusing on nonsmokers

    Detta är en avhandling från Stockholm : Karolinska Institutet, false

    Författare :Fredrik Nyberg; Karolinska Institutet.; Karolinska Institutet.; [1998]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Lung cancer; case-control study; smoking misclassification; exposure misclassification; validation; bias; nonsmoker; smoking; environmental tobacco smoke; ETS; diet; biomarker; glutathione S transferase; GSTM1; N-acetyl transferase; NAT2; hypoxanthine-guanine phosphoribosiyl transferase; hprt; DNA; adducts;

    Sammanfattning : Tobacco smoking is the major cause of lung cancer. Other risk factors include exposure to environmental tobacco smoke (ETS), dietarv habits and genetic factors. When studying such risk factors, confounding from smoking presents a pervasive methodological problem. LÄS MER

  2. 2. Structure and Motion Estimation in Rigid Body Perspective Dynamic Systems

    Detta är en avhandling från Stockholm : Karolinska Institutet, false

    Författare :Fredrik Nyberg; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Abstract This thesis concerns different aspects of recursive estimation of structure and motion in dynamic rigid body perspective systems, where the three-dimensional position of observed object feature points are expressed as states in a system of deterministic or stochastic differential equations describing the object motion, combined with a set of output equations in the form of two-dimensional perspective measurements obtained using a single camera. Firstly, a number of novel hybrid matching constraints are derived for the recovery of motion parameters in a rigid body perspective system where the measurements can be considered as arriving at closely spaced time instants. LÄS MER

  3. 3. Hur låter dikten? Att bli ved

    Detta är en avhandling från Göteborg : ArtMonitor

    Författare :Fredrik Nyberg; Göteborgs universitet.; Gothenburg University.; [2013]
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : .... LÄS MER