Search for dissertations about: "cold adaptation"

Showing result 1 - 5 of 35 swedish dissertations containing the words cold adaptation.

  2. 1. Enzyme Cold Adaptation through Evolution of Protein Flexibility

    Author : Jaka Sočan; Johan Åqvist; Hugo Gutiérrez-de-Terán; Janez Mavri; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; EVB; Empirical valence bond method; Pancreatic elastase; α-amylase; Enzyme catalysis; Enzyme evolution; Cold adaptation; Temperature dependence of catalytic rates; Psychrophilic enzyme; Molekylär biovetenskap; Molecular Life Sciences;

    Abstract : What lives, evolves. Macromolecular catalysis is a process, central to both evolutionary and metabolic aspect of life, as it provides a systematic bias favouring certain chemical processes. READ MORE

  4. 2. Accidental hypothermia and local cold injury : physiological and epidemiological studies on risk

    Author : Helge Brändström; Michael Haney; Urban Wiklund; Anders Eriksson; Karl-Axel Ängquist; Ola Winsö; Sigridur Kalman; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cold-related injuries; hypothermia; frostbite; cold adaptation; rewarming; autonomic nervous system; heart rate variability;

    Abstract : Background: (Papers I and II) The objectives were to first determine incidence and contributing factors to cold-related injuries in northern Sweden, both those that led to hospitalization and those that led to fatality.  (Papers III and IV) A further aim was to assess post-cooling hand-rewarming responses and effects of training in a cold environment, both on fingertip rewarming and on function of the autonomic nervous system, to evaluate if there was adaptation related to prolonged occupational cold exposure. READ MORE

  5. 3. Cold Sensitivity in injured and normal hands. Consequences for daily life

    Author : Ingela Carlsson; Malmö Handkirurgi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Behavioural treatment; cold sensitivity; Cold Intolerance Symptom Severity questionnaire; cold intolerance; Cold Sensitivity Severity scale; hand injury; health-related quality of life; hand-arm vibration syndrome; occupation; Potential Work Exposure Scale;

    Abstract : Cold sensitivity is a common and persistent complaint after various hand injuries and diseases. The general aim of the thesis was to investigate the consequences of cold sensitivity for daily life in patients with traumatic hand injuries and hand-arm vibration syndrome (HAVS). READ MORE

  6. 4. Function and Adaptation of Acidophiles in Natural and Applied Communities

    Author : Stephan Christel; Mark Dopson; Michael Schlömann; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Acidophiles; Biomining; Psychrophiles; Adaptation; Acid Sulfate Soil; Redox Control; Ecology; Ekologi;

    Abstract : Acidophiles are organisms that have evolved to grow optimally at high concentrations of protons. Members of this group are found in all three domains of life, although most of them belong to the Archaea and Bacteria. READ MORE

  7. 5. Natural variation in cold adaptation and freezing tolerance in Arabidopsis thaliana

    Author : Antoine Bos; Pär Ingvarsson; Hans Stenøien; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; cold acclimation; freezing tolerance; flowering time; latitudinal clines; genetic variation; evolutionary genetics; Molecular biology; Molekylärbiologi;

    Abstract : Plants have spread to almost everywhere in the world. As they disperse, they meet many different environments to which they may be able to adapt. For a plant species to adapt to a new environment, genetic variation is needed. The individuals differ from each other in their genetic composition, which often means differences in phenotypes. READ MORE