Search for dissertations about: "14C"

Showing result 21 - 25 of 125 swedish dissertations containing the word 14C.

  2. 21. Analysis of cardiac cell turnover in humans by radiocarbon dating and mathematical modeling

    Author : Sofia Zdunek; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Cardiovascular disease is the largest cause of morbidity and mortality in the Western World. Disease progression often involves a loss of contracting cells, cardiomyocytes, which leads to cardiac failure and the need for heart transplantation with time. READ MORE

  4. 22. Basal and Pollutant-induced Expression of CYP1A, 1B and 1C isoforms in Fish : Implications for Biomonitoring

    Author : Kai Gao; Ingvar Brandt; Maria E. Jönsson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Aquatic wildlife are exposed to contaminants in their natural habitats, and toxic pollutants may induce toxicity in sensitive target tissues and cells. There is therefore a need to establish biomarkers to determine exposure to certain classes of contaminants and the subsequent biological responses. READ MORE

  5. 23. Evaluation of polysucrose 15000 as a marker of intestinal permeability

    Author : Hans Öman; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Polysucrose Permeability Intestinal Absorption Cell Memhrane Permeahility Molecular WeightMacromolecular systems Biological Markers Biological Transport Crohn Disease Arthritis; RheumatoidAnti-lnflammatory Agents; Non-Steroidal Chromium Radioisotop;

    Abstract : Polysucrose (PS) is a synthetic copolymer of sucrose and epichlorohydrin, which can be produced in a variety of molecular sizes. The aim of the study was to evaluate the functionality of PS 15000, mean mol wt 14700, as a marker for intestinal permeability to macro molecules. READ MORE

  6. 24. Cytoarcheology : understanding cellular turnover in the human brain and heart

    Author : Ratan Dev Bhardwaj; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The total number of cells within a human being increases dramatically during growth, yet certain organs are thought to have distinct differences within this regard. Just as cells may be added to an organ, cells may die also, and these dynamics of cellular addition and cellular death are known as cellular turnover. READ MORE

  7. 25. Post-Glacial History of Sea-Level and Environmental Change in the Southern Baltic Sea

    Author : Marloes Kortekaas; Kvartärgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; kartografi; klimatologi; Geofysik; fysisk oceanografi; physical oceanography; meteorology; Sedimentologi; Stratigrafi; Stratigraphy; Baltic Sea; geokemi; Petrologi; mineralogi; geochemistry; mineralogy; Petrology; greigite; mineral magnetics; sea-level changes; Holocene; Littorina transgression; geomorphology; pedology; cartography; climatology; meteorologi; Geophysics; Sedimentology; Optically Stimulated Luminescence OSL ; Fysisk geografi; geomorfologi; marklära; Physical geography;

    Abstract : A new palaeoenvironmental record of the post-glacial history of the southern Baltic Sea (~14 ka to present) is presented. During this period, large water level and salinity changes occurred in the Baltic Basin due to opening and closing of connections to the North Atlantic. READ MORE