Search for dissertations about: "Lars Johansson"

Showing result 21 - 25 of 132 swedish dissertations containing the words Lars Johansson.

  2. 21. Teenager fatalities : epidemiology and implications for prevention

    Author : Lars Johansson; Anders Eriksson; Leif Svanström; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Teenager; fatalities; injury; suicide; alcohol; drugs; intoxication; trends; Forensic medicine; Rättsmedicin; Forensic Medicine; rättsmedicin;

    Abstract : A significant number of teenagers are killed each year by unintentional or intentional injuries. A teenager is in a vulnerable phase of her/his life, going from being a child to adult. This transition often includes testing the limits of their capabilities, which can include, e.g. READ MORE

  4. 22. Mechanical Pulp. Effects of Pretreatment and Wood Source on Fiber Separation and Pulp Properties

    Author : Lars Johansson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; torsional stress; pulp properties; chips; impregnation; screw press; SEM; mechanical pulp; sulfonation; shear stress; fracture surface; wood quality; temperature;

    Abstract : The work presented in this thesis concerns the mechanical pulping process and the effects of wood source and pretreatment conditions on the pulp properties. In the first part, the deformation of Norway spruce (Picea abies) wood samples was investigated under shear and torsional loading at different temperatures (20-95°C) and sulfonation conditions. READ MORE

  5. 23. Visualization/graphical modeling as a supporting tool in organizational development activities : an action oriented approach

    Author : Lars-Olof Johansson; Växjö University; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Graphical modeling; Computer science; Datalogi;

    Abstract : .... READ MORE

  6. 24. The Utility of Ultrasmall Superparamagnetic Iron Oxide Contrast Agents for Cardiovascular Magnetic Resonance Imaging

    Author : Lars Johansson; Håkan Ahlström; Hans-Jørgen Smith; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; Magnetic resonance imaging; Contrast agent; Iron Oxide; Cardiovascular; Radiologisk forskning; Radiological research; Radiologisk forskning;

    Abstract : The purpose of this thesis was to investigate the utility of the Ultrasmall Superparamagnetic Iron Oxide Particle (USPIO), NC100150 Injection for assessment of macro- and microvascular morphology and function using magnetic resonance imaging. The feasibility of NC100150 Injection was tested for the following applications: Coronary angiography, Thrombus detection, Cardiac function, Myocardial perfusion, Assessment of myocardial blood volume and water exchange and finally assessment of endothelial integrity of the myocardium. READ MORE

  7. 25. On minimally invasive approaches to sinus lift procedures

    Author : Lars-Åke Johansson; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; autogenous bone graft; bone formation; clinical study; cone beam computed tomography; dental implants; ; flapless surgery; hydroxyapatite; osteotome technique; partially dentate maxillae; sinus lift surgery;

    Abstract : Abstract Aims: The overall aim of the present thesis was to evaluate implant survival and bone regeneration after minimally invasive sinus lift procedures. Material and methods: In study I, 61 patients were prospectively evaluated 12 to 60 months after two different methods of locally bone harvesting methods adjacent to the maxillary sinus lift procedure. READ MORE