Sökning: "sap flow"

Hittade 5 avhandlingar innehållade orden sap flow.

  1. 1. The significance of soil conditions for sap flow of Scots pine in the boreal environment

    Författare :Per-Erik Mellander; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Low temperature; soil warming; transpiration; soil frost; silvicultural practice; Pinus Sylvestris; Biology; Biologi;

    Sammanfattning : .... LÄS MER

  3. 2. Arterial pulse wave analysis. With special reference to vasoactive and anaesthetic drugs and to heart lung interactions

    Författare :Staffan Söderström; Göteborgs universitet; []
    Nyckelord :pulse; blood pressure physiology; hypertension; aged; vasodilation; ventricular function; left; nitroglycerin; coronary disease; artificial respiration; fentanyl.;

    Sammanfattning : In the young systolic arterial pressures (SAP) are higher in the radial artery than in the proximal aorta. Due to increased large artery stiffness and early pulse wave reflection aortic SAP increases more with age than peripheral SAP. LÄS MER

  4. 3. Modeling disturbances of cholinergic systems : possible relevance for schizophrenia

    Författare :Anna Mattsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Cholinergic; nucleus basalis; 192 IgG-saporin; schizophrenia; locomotor activity; dopamine; microdialysis; memory; MRI;

    Sammanfattning : Schizophrenia is a severe, chronic mental disorder. The etiology remains unknown but alterations in cholinergic neurotransmission is one, among other, disturbances in the brain that have been implicated in schizophrenia. LÄS MER

  5. 4. Spring water stress in Scots pine: interaction of snow and soil temperature

    Författare :Per-Erik Mellander; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Low temperature; soil warming; transpiration; root water uptake; carbon dioxide assimilation; soil frost; silvicultural practice; Pinus Sylvestris; Biology; Biologi;

    Sammanfattning : Water use and net carbon assimilation during spring was examined on Scots pine trees exposed to different soil warming dynamics in the field. Sap flow, needle water potential and net carbon assimilation were measured on trees that were exposed to a wide range of soil temperature regimes caused by manipulating the snow cover on tree-scale soil plots. LÄS MER

  7. 5. Cyclooxygenase activity and tumor progression

    Författare :Christian Cahlin; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cyclooxugenase; PGE2; inflammation; cytokine; nitric oxide; indomethacin; IL-6;

    Sammanfattning : Invasive growth of malignant tumors is associated with local and systemic inflammation, which may promote progression and metastases. Inflammation is also responsible for appearing manifestations of advanced cancer as fatigue, anorexia and wasting with eicosanoids, proinflammatory cytokines and nitric oxide as mediators. LÄS MER