Sökning: "seasonality"

Visar resultat 21 - 25 av 107 avhandlingar innehållade ordet seasonality.

  1. 21. Assessment of active commuting behaviour : walking and bicycling in Greater Stockholm

    Författare :Erik Stigell; Peter Schantz; Andreas Nilsson; Maria Hagströmer; Gymnastik- och idrottshögskolan; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; walking; cycling; commuting; validity; reproducibility; distance; duration; velocity; frequency; seasonality; Sports; Idrott; Samhällsvetenskap Humaniora; Social Sciences Humanities; Sports Science;

    Sammanfattning : Walking and bicycling to work, active commuting, can contribute to sustainable mobility and provide regular health-enhancing physical activity for individuals. Our knowledge of active commuting behaviours in general and in different mode and gender groups in particular is limited. LÄS MER

  3. 22. Biological and Psychosocial Aspects of Postpartum Depression

    Författare :Sara M Sylvén; Alkistis Skalkidou; Inger Sundström Poromaa; Lisa Ekselius; Ann Josefsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Depression; postpartum; biological; seasonality; gender; premenstrual; Psychiatry; Psykiatri; Obstetrik och gynekologi; Obstetrics and Gynaecology;

    Sammanfattning : Postpartum depression (PPD) is one of the most common complications of childbirth around the world. Despite several studies on the underlying mechanisms, the pathophysiology remains elusive. LÄS MER

  4. 23. Bacterioplankton in the light of seasonality and environmental drivers

    Författare :Carina Bunse; Jarone Pinhassi; Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; marine bacteria; marine microbiology; seasonal succession; ocean acidification; proteorhodopsin; photoheterotrophy; microbial time series; Akvatisk ekologi; Aquatic Ecology; Mikrobiologi; Microbiology; Miljövetenskap; Environmental Science;

    Sammanfattning : Bacterioplankton are keystone organisms in marine ecosystems. They are important for element cycles, by transforming dissolved organic carbon and other nutrients. Bacterioplankton community composition and productivity rates change in surface waters over spatial and temporal scales. LÄS MER

  5. 24. Paleoclimate and seasonality on Sumatra during the Late Glacial and Holocene : Insights from biomarkers and climate model simulations

    Författare :Lars Petter Hällberg; Malin Kylander; Frederik Schenk; Rienk Smittenberg; David Naafs; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Holocene; Late Glacial; biomarkers; organic geochemistry; climate model; hydrogen isotopes; stable isotopes; paleoclimate; alkanes; GDGT; brGDGT; H-GDGT; bacterial community shifts; paleothermometry; precipitation reconstruction; peat; geokemi; Geochemistry;

    Sammanfattning : Deep atmospheric convection in the Indo-Pacific Warm Pool (IPWP) is a key driver of the Hadley and Walker Circulations that modulate the Asian-Australian monsoons and the El Niño Southern Oscillation (ENSO). Temperature and rainfall seasonality, i.e. LÄS MER

  7. 25. Modeling the Seasonality of Carbon, Evapotranspiration and Heat Processes for Cold Climate Conditions

    Författare :Sihong Wu; Per-Erik Jansson; Andreas Ibröm; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; net ecosystem exchange NEE ; sensible and latent heat fluxes; photosynthesis; respiration; nitrogen turnover; Scots pine forest; bare soil; cold climate; soil physical characteristics; CoupModel; GLUE; Other civil engineering and architecture; Övrig samhällsbyggnadsteknik och arkitektur;

    Sammanfattning : The productivity of agricultural and forest ecosystems in regions at higher latitudes is to a large extent governed by low temperature and moisture conditions. Environmental conditions are acting both above- and below-ground and regulating carbon fluxes and evapotranspiration. LÄS MER