Search for dissertations about: "early versus late"

Showing result 1 - 5 of 45 swedish dissertations containing the words early versus late.

  2. 1. Lateral movements versus stationarity : adaptive alternatives in benthic invertebrates to the seasonal environment in a boreal river

    Author : Tommy I. Olsson; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Benthic invertebrates; cold-hardiness; ice; migrations; overwintering; river; seasonal variations; spatial distribution; spring flood; water level;

    Abstract : Benthic invertebrates inhabiting boreal rivers are exposed to very large seasonal variations in their physical environment. The extremes are in winter when the littoral area freezes solid and in spring when water flow increases rapidly. READ MORE

  4. 2. Early events in T cell development

    Author : Karin Leandersson; Malmö Cancerimmunologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; pTalpha; gammadelta T cell; alphabeta T cell; development; thymus; thymocyte; serology; transplantation; Immunologi; serologi;

    Abstract : T cells constitute a heterogenous population of lymphocytes. Their unifying property is that they express surface bound antigen-receptors, called T cell receptors (TCRs). The TCR is a heterodimer composed of either TCRalpha and beta chain proteins (alphabeta TCR) or gamma and delta chain proteins (gammadelta TCR). READ MORE

  5. 3. Evolutionary innovation : Early industrial uses of genetic engineering

    Author : Maureen McKelvey; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Biotechnology industry; Economics of innovation; Evolutionary Economics; Genentech; human growth hormone; Kabi; technological innovation; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Abstract : Based on an analysis of biological and economic theories of evol~tion, this dissertation first specifies evolutionary innovation and then uses it toanalyze early industrial uses of genetic engineering. Innovation refers totechnological innovation processes, i.e. series of innovative activitiesresulting in technical change. READ MORE

  6. 4. Early life exposures and lung function development

    Author : Björn Lundberg; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : BACKGROUND: Lung development is a dynamic process, vulnerable to adverse environmental exposures. Starting in utero, development continues postnatally, and although lung structure is mainly set at around two years of age, the maturation process continues into young adulthood. READ MORE

  7. 5. Preschool asthma : infant lung function, inflammation and skin barrier function in early life

    Author : Martin Färdig; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Background: Asthma is among the most common obstructive respiratory disorders in children, characterized by airway inflammation with features such as wheeze, cough and shortness of breath. Though the etiology behind the disease partly remains unknown, the roots likely origin from early life. READ MORE