Search for dissertations about: "14C"

Showing result 6 - 10 of 125 swedish dissertations containing the word 14C.

  2. 6. Wild plants can improve their rhizosphere chemistry in acid soils

    Author : Marion Schöttelndreier; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Växtekologi; Plant ecology; wild plants.; time pattern; soil heterogeneity; rhizotrons; rhizosphere; pH; oxalic acid; nutrient availability; malic acid; hydroponics; citric acid; 14C; biodegradation; acid soils; aluminium toxicity; Soil Science; agricultural hydrology; Lantbrukshydrologi; marklära; Plant biochemistry; Växtbiokemi;

    Abstract : Growth conditions on acid soils may be hampered by low nutrient availability and phytotoxic Al (aluminium) concentrations. In this thesis I present my studies on adaptation mechanisms of wild plants to acid soils in the close root environment, the rhizosphere. READ MORE

  4. 7. Exploring the Possibilities of 14C Bomb-Pulse Dating of Human Tissue Samples

    Author : Elisavet Georgiadou; Kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; 14C measurements; Bomb-pulse dating; human body; serum; plaque; Fysicumarkivet A:2014:Georgiadou;

    Abstract : The testing of nuclear weapons in the atmosphere, in the middle of the 20'h century, resulted in a bomb-pulse excess of atmospheric 14C. A bomb-pulse dating method was thus developed. The latter is a method to determine the time of formation of formerly living modern (i.e. READ MORE

  5. 8. Adsorption and transformation of organic micropollutants in wastewater : New insights from 14C-labeling

    Author : Alexander Betsholtz; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; activated carbon; ozonation; Organic micropollutants; pharmaceuticals; wastewater; transformation products; biological degradation; GAC-filters; adsorption; 14C-labeling;

    Abstract : This thesis focuses on the removal of organic micropollutants and transformation products using ozone and activated carbon treatment processes. A combination of 14C-labeled and non-radiolabeled organic micropollutants was used to study aspects of micropollutant removal from novel perspectives. READ MORE

  6. 9. Astrocyte metabolism following focal cerebral ischemia

    Author : Anna E Thoren; Göteborgs universitet; []
    Keywords : Astrocyte; metabolism; focal cerebral ischemia; reperfusion; infarct; [1-14C]acetate; [U-14C]glucose; glutamine; glutamate; ATP; ADP; lactate; MCT4; immunogold cytochemistry;

    Abstract : Stroke is one of the leading causes of disability and death. Most often, stroke results from blockage of an artery in the brain leading to tissue infarction within the perfusion territory of the affected vessel. READ MORE

  7. 10. 11C/14C and 18F/19F kinetic isotope effects : methods, measurements and calculations

    Author : Svante Axelsson; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE