Sökning: "CA 50"

Visar resultat 16 - 20 av 243 avhandlingar innehållade orden CA 50.

  1. 16. Cerebral Protection in Experimental Cardiopulmonary Resuscitation : With Special Reference to the Effects of Methylene Blue

    Författare :Adriana Miclescu; Lars Wiklund; Samar Basu; Jo Kramer-Johansen; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cardiac arrest; cardiopulmonary resuscitation; reperfusion injury; methylene blue; nitric oxide; nitric oxide synthases; blood-brain barrier; Anaesthetics and intensive care; Anestesiologi och intensivvård; Anestesiologi; Anaesthesiology;

    Sammanfattning : Although survival rates are increasing, brain injury continues to be a leading cause of death after cardiac arrest (CA). Permanent brain damage after CA is determined by limited tolerance to ischemia from CA and cardiopulmonary resuscitation (CPR), as well as the unique cerebral response to reperfusion after return of spontaneous circulation (ROSC). LÄS MER

  3. 17. On Toxicant-Induced Succession in Periphyton Communities: Effects of Single Chemicals and Chemical Mixtures

    Författare :Tobias Porsbring; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; community ecotoxicology; toxicant-induced succession; chemical mixtures; concentration addition; independent action; diatoms; periphyton; algal pigments; algal sterols;

    Sammanfattning : This thesis deals with the effects of single chemicals and chemical mixtures on biological communities. Ecosystems are exposed to complex mixtures of chemicals, and because combination effects can occ... LÄS MER

  4. 18. Late Holocene humidity variability in central Sweden

    Författare :Sofia Andersson; Stefan Wastegård; Gunhild Rosqvist; Kristian Schoning; Frank Chambers; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; humidity change; stable isotopes; Chara spp; Pisidium spp; testate amoebae assemblages; humification; C N ratio; late Holocene; central Sweden; Quaternary geology; Kvartärgeologi; kvartärgeologi; Quarternary Geology;

    Sammanfattning : The aim of this thesis was to reconstruct humidity variability in central Sweden during the late Holocene. A multi-proxy approach was used to infer humidity changes as recorded in a lake and a mire. Age-models were constructed based on radiocarbon dating and the Askja-1875 tephra. LÄS MER

  5. 19. On-line Sample Pretreatment Based on Membrane Enrichment, Mainly Using Supported Liquid Membranes, for Chromatographic Analysis

    Författare :Yin Shen; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biological Sample; Environmental Sample; Capillary Gas Chromatography; Ion Chromatography; Automation; Sample Pretreatment; Enrichment; Membrane; Extraction; Analytical chemistry; Analytisk kemi;

    Sammanfattning : The main objective of this work was to construct practical analytical systems for the analysis of environmental and biological samples, using membrane-based techniques for sample pretreatment and chromatography for final analysis. Two types of membrane processes have been applied, with emphasis on automation. LÄS MER

  7. 20. Vasomotor symptoms in postmenopausal women : the role of acupuncture and calcitonin gene-related peptide

    Författare :Yvonne Wyon; Britt-Marie Landgren; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : A majority of postmenopausal women experience vasomotor symptoms, which have a significant impact on the women's quality of life. Estrogens are the treatment of choice but can for different reasons not be used by all women. There is therefore a great need for viable alternative treatments. LÄS MER