Sökning: "Anna Åkesson"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Anna Åkesson.

  1. 1. Disturbances in food webs : Importance of species interactions from an ecological and evolutionary perspective

    Författare :Anna Åkesson; Anna Eklöf; György Barabas; Vasilis Dakos; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Biodiversity loss is occurring globally at an unprecedented pace. This is not only followed by ethical concerns; it also affects all levels of an ecosystem, with wide-spread implications for ecosystem functioning, services and human well-being. LÄS MER

  3. 2. Hydraulic- hydromorphologic analysis as an aid for improving peak flow predictions

    Författare :Anna Åkesson; Anders Wörman; Göran Lindström; Rolf Larsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrological modelling; peak flow predictions; distributed routing; parameterisation; stage-dependency; Hydrology; Hydrologi;

    Sammanfattning : Conventional hydrological compartmental models have been shown to exhibit a high degree of uncertainty for predictions of peak flows, such as the design floods for design of hydropower infrastructure. One reason for these uncertainties is that conventional models are parameterised using statistical methods based on how catchments have responded in the past. LÄS MER

  4. 3. Peakflow response of stream networks : implications of physical descriptions of streams and temporal change

    Författare :Anna Åkesson; Anders Wörman; Alberto Viglione; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Streamflow routing; peakflow predictions; parameterization; hydrological response; stage-dependency; flooded cross-sections; stream networks; backwater effects; temporal change; land use change; Civil and Architectural Engineering; Byggvetenskap;

    Sammanfattning : Through distributed stream network routing, it has quantitatively been shown that the relationship between flow travel time and discharge varies strongly nonlinearly with stream stage and with catchment-specific properties.Physically derived distributions of water travel times through a stream network were successfully used to parameterise the streamflow response function of a compartmental hydrological model. LÄS MER

  5. 4. Combinations of type 1 diabetes, celiac disease and allergy : An immunological challenge

    Författare :Anna Kivling; Maria Faresjö; Lennart Nilsson; Karin Åkesson; Ragnar Bjarnason; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : The immune system is composed of a complex network of different cell types protecting the body against various possible threats. Among these cells are T-helper (Th) cells type 1 (Th1) and type 2 (Th2), as well as T regulatory (Treg) cells. LÄS MER

  7. 5. Medicinens lyskraft och skuggor : ― om trosföreställningar och symbolisk makt i habiliteringen 1960–1980

    Författare :Carina Carlhed; Donald Broady; Staf Callewaert; Eva Björck-Åkesson; Karin-Anna Petersen; Ingrid Heyman; Mälardalens högskola; []
    Nyckelord :habilitation services; children; handicap; disability; medicine; social workers; counsellors; pre-school teachers; psychologists; occupational therapists; physiotherapists; parent organizations; disability organizations; symbolic power; sociology of culture; Bourdieu;

    Sammanfattning : The dissertation examines the formation of specific groups, their interests and positions related to children with disabilities and their education and care in Sweden developed during 1960-1980. The theoretical framework is based on Pierre Bourdieu’s sociological theory of social space, which assumes that social life is based on symbolic and cultural systems of beliefs with respectively specific doxas and symbolic economies. LÄS MER