Search for dissertations about: "Peter Lund"

Showing result 1 - 5 of 119 swedish dissertations containing the words Peter Lund.

  1. 1. Magnetic Resonance Imaging in Legg-Calvé-Perthes Disease

    University dissertation from Department of Radiology, Lund University

    Author : Peter Hochbergs; Lunds universitet.; Lund University.; [1998]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Clinical physics; Histology; Metaphysis; Synovitis; Necrosis; Osteotomy; Arthrography; Magnetic Resonance Imaging; Legg-Calvé-Perthes Disease; Pediatrics; Hip; medicinsk instrumentering; tomografi; radiologi; Klinisk fysiologi; medical instrumentation; tomography; radiology;

    Abstract : The aims of this study were: to compare the cartilaginous outline of the femoral head obtained on arthrograms with those on MR images and to correlate it to the bony head outlines on conventional radiograps; to study early, postoperative cartilaginous and bony remodeling of the femoral head, after proximal femoral varus derotation extension osteotomy, with MR imaging and conventional radiography; to describe signal abnormalities on MR images in the femoral epiphysis, their location, extent and restitution over time; to evaluate the degree and persistence of synovitis in the hip joint by MR imaging; to analyze the metaphyseal histology and to correlate it to the signal intensity on the MR images in the corresponding biopsy region. Results and conclusions: MR imaging and arthrography define the shape of the femoral head cartilage equally well. READ MORE

  2. 2. Methodological Aspects of Clinical fMRI - Reliability Assessment and Development of Data Analysis Strategies

    University dissertation from Department of Radiology, Lund University

    Author : Peter Mannfolk; Lunds universitet.; Lund University.; [2010]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Blood oxygenation level dependent fMRI Field map General linear model Locally linear embedding Resting-state;

    Abstract : Functional magnetic resonance imaging (fMRI) is a non-invasive technique used for the investigation of brain function, which has found numerous applications within basic neuroscience. The introduction of fMRI as a clinical tool for presurgical mapping of pertinent cortical regions in patients with tumour or epilepsy has facilitated neurosurgical planning, and most likely reduced the risk of severe postoperative deficits. READ MORE

  3. 3. Space Weather Physics, Prediction and classification of solar wind structures and geomagnetic activity using artificial neural networks

    University dissertation from Lund Observatory, Lund University

    Author : Peter Wintoft; Lunds universitet.; Lund University.; [1997]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astronomi; cosmic chemistry; space research; Astronomy; solar magnetic fields; space weather; solar wind; magnesphere; artificial neural networks; geomagnetic activity; rymdvetenskap; kosmisk kemi; Fysicumarkivet A:1997:Wintoft;

    Abstract : This thesis concerns the application of artificial neural network techniques to space weather physics. The networks applied include multi-layer error-backpropagation, radial basis function, and self-organized maps. READ MORE

  4. 4. Image analysis in astronomy

    University dissertation from Lund Observatory, Lund University

    Author : Peter Linde; Lunds universitet.; Lund University.; [1987]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:1987:Linde;

    Abstract : .... READ MORE

  5. 5. Making the Most of It? Understanding the social and productive dynamics of small farmers in semi-arid Iringa, Tanzania

    University dissertation from Department of Sociology, Lund University

    Author : Peter Gregersen; Lunds universitet.; Lund University.; [2003]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social changes; Malthus; Boserup; Tanzania; semi-arid Africa; Iringa; conservation; sustainability; soil fertility; degradation; population; Matthew principle; social differentiation; farmerisation; de-peasantisation; livelihood diversification; rural change; agrarian change; agricultural change; small farmers; dynamics; theory of social work; Sociala förändringar; teorier om socialt arbete;

    Abstract : Popular Abstract in Swedish Att klara sig trots allt: Den sociala och produktiva dynamiken hos småbönderna i de halvtorra områdena i Iringa i norra Tanzania. Det är inte lätt att överleva som småbonde i de halvtorra områdena i Iringa och på liknande platser i Afrika. Man kontrollerar knappast sin egen livssituation. READ MORE