Now showing items 791-795 of 795
Hormone replacement therapy use and plasma levels of sex hormones in the Norwegian Women and Cancer Postgenome Cohort : a cross-sectional analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008-02-14)
Background: Hormone replacement therapy use (HRT) is associated with increased breast cancer risk. Our primary objective was to explore hormone levels in plasma according to HRT use, body mass index (BMI) and menopausal status. A secondary objective was to validate self-reported questionnaire information on menstruation and HRT use in the Norwegian Women and Cancer postgenome cohort (NOWAC). Methods: ...
Internet-based patient communication
(Doctoral thesis; Doktorgradsavhandling, 2009-05-22)
<b>Objective</b> <br>To investigate some of the consequences that electronic health communication has for patients, health professionals and society at large. The underlying studies investigate reasons patients provide for using online communication solutions, the current propagation and pace of Internet health communication, and whether such services would replace conventional health communication ...
Invasion-mediated changes in the population biology of a dimorphic whitefish Coregonus lavaretus population
(Journal article; Tidsskriftartikkel; Peer reviewed, 2004-02-26)
Population biology changes in native dimorphic whitefish <i>Coregonus lavaretus</i> were studied over a decade in the subarctic Pasvik watercourse, where large biotric changes occurred due to an invasion by vendace <i> C. albula</i>. Although initially recorded in the upstream part of the watercourse, where it is now the dominant pelagic species, the vendace subsequently also colonised the downstream ...
The competitive edge of an invading specialist
(Journal article; Tidsskriftartikkel; Peer reviewed, 2001-08-01)
Introduced species represent major threats to native and natural biodiversity. On the other hand, biologists may increase the understanding of ecological interactions by following communities during establishment of exotic species. Accordingly, feeding ecology and habitat use were studied in native whitefish (<i>Coregonus lavaretus</i>) and recently invading vendace (<i>C. albula</i>) in two lake ...