Sökning: "Ulf Nilsson"

Visar resultat 16 - 20 av 79 avhandlingar innehållade orden Ulf Nilsson.

  1. 16. Lysosomal stability under the influence of oxidative stress and lipofuscin accumulation

    Författare :Evalill Nilsson; Ulf Brunk; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICINE; MEDICIN; Medicin;

    Sammanfattning : The lysosome is the cellular organelle responsible for degradation and recycling of macromolecules through hetero- and autophagocytosis. It is generally considered a stable organelle that breaks down only late during cellular degeneration. LÄS MER

  3. 17. Meso-scale modelling of composites and semi-crystalline polymers

    Författare :Fritjof Nilsson; Mikael Hedenqvist; Ulf Gedde; Hans Ågren; Göran Grimvall; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; semi-crystalline polymers; simulations; diffusion; electrostatics; Materials science; Teknisk materialvetenskap; Applied mathematics; Tillämpad matematik; Polymer chemistry; Polymerkemi;

    Sammanfattning : This thesis covers the first few steps of a multi-scale computer simulation strategy for predicting physical properties of complex polymers like composites and semi-crystalline polymers. Meso-scale simulations of crystallization and solvent diffusion in polyethylene as well as simulations examining the geometrical impact on the effective permittivity of composites have been performed. LÄS MER

  4. 18. Mortality and morbidity after groin hernia surgery : the role of nationwide registers in finding and analysing rare outcomes

    Författare :Hanna Nilsson; Pär Nordin; Ulf Angerås; Hans Stenlund; Andrew Kingsnorth; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; kirurgi; Surgery;

    Sammanfattning : Introduction: Groin hernia surgery is one of the most common surgical procedures world-wide. Although mainly uncomplicated, the large volume of these operations makes it important to consider severe postoperative complications. LÄS MER

  5. 19. On maintenance management of wind and nuclear power plants

    Författare :Julia Nilsson; Lina Bertling; Ulf Sandberg; KTH; []
    Nyckelord :electrical poduction systems; windpower; nuclear power; maintenance management; RCM; RCAM; LCC; mathematical optimization; opportunistic maintenance;

    Sammanfattning : Electrical production in Sweden today is mainly from nuclear and hydro power. However, there is large increase in renewable energy like wind power and the installed new capacity goals are large. Several electrical production sources are important for the sustainability of the energy system. LÄS MER

  7. 20. ST-elevation myocardial infarction : studies of outcome in relation to fibrinolysis and ischemia monitoring with on-line vectorcardiography

    Författare :Johan Nilsson; Ulf Näslund; Kurt Boman; Kristian Thygesen; Umeå universitet; []
    Nyckelord :Medicine; Myocardial infarction; vectorcardiography; fibrinolysis; reperfusion; Medicin; kardiologi; Cardiology;

    Sammanfattning : The treatment of acute myocardial infarction (AMI) has undergone a tremendous development during the last decades, and the most important factor is probably the introduction of reperfusion therapy aimed at preventing or limiting the myocardial injury. It is of vital importance that patients with AMI are adequately monitored regarding the development of ECG changes during and after treatment to identify successful or failed reperfusion and to detect episodes of recurrent ischemia. LÄS MER