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Visar resultat 1 - 5 av 11 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Orthophosphate, alkaline phosphatase activity and algal surplus phosphorus in Lake Erken

    Författare :Kurt Pettersson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  3. 2. Whiplash injury : a clinical, radiographic and psychological investigation

    Författare :Kurt Pettersson; Seppo Santavirta; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cervical spine; whiplash injury; MRI; personality traits; steroid therapy; sagittal canal diameter; chronic symptoms;

    Sammanfattning : Whiplash injury is a common and troublesome disorder and approximately 10-40 per cent of its victims develop chronic symptoms. The annual incidence is estimated at 1/1000 inhabitants and the prevalence at 1%. The cause of chronic symptoms after whiplash injury is still unknown and no effective treatment has been presented so far. LÄS MER

  4. 3. Hemi and total wrist arthroplasty

    Författare :Per Fischer; Kurt Pettersson; Marcus Sagerfors; Jan Fridén; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Rheumatoid arthritis; Wrist; Arthroplasty; Implant survival; Biomechanics;

    Sammanfattning : Aim: To study implant survival and implant loosening following primary total wrist arthroplasty (TWA) using four different implants. To report outcome following wrist revision arthroplasty. To evaluate a new radial wrist hemi arthroplasty (RWHA) design clinically and biomechanically. LÄS MER

  5. 4. Phosphorus Emissions from Fish Farms : Observed and Predicted Effects

    Författare :Torbjörn Johansson; Kurt Pettersson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Fish farm; phosphorus; eutrophication; model; Geovetenskap; Earth sciences; Geovetenskap; Sedimentology; sedimentologi;

    Sammanfattning : During the last decades, fish farming has been a rapidly increasing industry in many European and North American countries. Sweden has a large potential for aquaculture, but there is also a strong concern about the effects on the environment that an increased aquaculture production may cause. LÄS MER

  7. 5. Studies on the Life Cycles of Akinete Forming Cyanobacteria

    Författare :Irene Karlsson Elfgren; Kurt Pettersson; Peter Blomqvist; Tore Lindholm; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; limnology; akinete; germination; recruitment; Biologi; Biology; Biologi; limnologi; Limnology;

    Sammanfattning : Cyanobacteria which can form resting cells (in this case akinetes) are common in meso-eutrophic lakes in temperate regions, often dominating the phytoplankton communities during summer. The life cycles of akinete-forming cyanobacteria has been studied with Gloeotrichia echinulata as a model organism. LÄS MER