Search for dissertations about: "a comparison between"

Showing result 21 - 25 of 2762 swedish dissertations containing the words a comparison between.

  2. 21. The significance of mitochondrial respiratory function in regulating oxygen uptake and performance in humans

    Author : Daniele A. Cardinale; Filip J Larsen; David Bishop; Gymnastik- och idrottshögskolan; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mitochondria; OXPHOS; p50mito; mitochondrial oxygen affinity; oxygen extraction; sex difference; hyperoxia; training; muscle metabolism; performance; HIIT; Medicin Teknik; Medicine Technology;

    Abstract : The mitochondrion is one of the most fascinating organelles of our cells which has kept and keeps researchers busy in studying its origin, the complex morphology, the numerous functions, the rapid adaptations to a variety of stimuli and its role in health and disease. Exercise challenges cellular homeostasis and skeletal muscle mitochondria greatly adapt to repeated bouts of exercise by increasing mitochondrial respiratory function and content to match energy requirements and to better sustain future perturbations induced by muscle contractions. READ MORE

  4. 22. Inhibition of 11 ß-HSD. Hemodynamic and hormonal response induced by liquorice

    Author : Helga A Sigurjónsdóttir; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; 11 ß-hydroxysteroid dehydrogenase; glycyrrhetinic acid; liquorice; hypertension; gender; androgen hormones;

    Abstract : Introduction: The enzyme 11 ß-hydroxysteroid-dehydrogenas (11 ß-HSD) type 2 that converts the active hormone cortisol to the inactive cortisone is inhibited by glycyrrhetinic acid (GA), the active substance in liquorice. This leads to hypertension, hypokalaemia and sodium- and fluid retention, the syndrome of pseudo-hyperaldosteronism. READ MORE

  5. 23. New Methods for Reducing Ground-Borne Noise in Buildings above Railway Tunnels

    Author : Osama A. B. Hassan; KTH; []
    Keywords : Ground-borne noise; railway noise; in-plane waves; wave-guides; scattering; propagation constant; input mobility; elastic stratum; dual integral equations;

    Abstract : The rapid expansion of major cities in the west Europeancountries has accentuated the need to exploit every potentialsite for new establishments, e.g. areas over train tunnels andnear railway tracks in general. READ MORE

  6. 24. An experimental investigation of spur gear efficiency and temperature : A comparison between ground and superfinished surfaces

    Author : Martin Andersson; Ulf Olofsson; Bengt-Göran Rosén; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gears; ground; superfinished; efficiency; temperature; running-in; dip lubrication; spray lubrication; Machine Design; Maskinkonstruktion;

    Abstract : This thesis focuses on reliability when testing gear efficiency and on how gear mesh efficiency can be increased without detrimental effects on the gears. Test equipment commonly used in gear research was analysed to identify important parameters for gear efficiency testing. READ MORE

  7. 25. Benefits of Digital Technical Information

    Author : Karin Ahlin; Erik A. M. Borglund; Lena-Maria Öberg; Tero Päivärinta; Pasi Tyrväinen; Mittuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; digital technical information; benefit; intangible benefit; interpretative research; manufacturing organization; digital teknikinformation; nytta; omätbara nyttor; tolkande forskning; tillverkande organisation;

    Abstract : In our daily work life, we use a wealth of information, including a category of information produced as a part of products and their life-cycle phases, named digital technical information (DTI). Manufacturing organizations focus more often on the product than on DTI, because DTI’s impact seems almost invisible, despite its crucial role to the product and its life-cycle phases, development, production, maintenance, and destruction. READ MORE