Sökning: "Fredrik Olsen"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Fredrik Olsen.

  1. 1. Orthogeriatric anaesthesia - studies on the bone cement implantation syndrome, risk prediction and intraoperative haemodynamics

    Författare :Fredrik Olsen; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; bone cement implantation syndrome; cemented hip hemiarthroplasty; bone cement; Nottingham hip fracture score; cardiac output monitoring; continuous spinal anaesthesia;

    Sammanfattning : The bone cementation implantation syndrome (BCIS), as seen in orthopaedic patients, is characterised by intraoperative hypotension and hypoxia and loss of consciousness around the time of bone cementation. In a retrospective study, the incidence of and risk factors for the BCIS and its impact on mortality during cemented hemiarthroplasty for hip fracture were evaluated. LÄS MER

  3. 2. Short- and long-term consequences of sport-related concussion

    Författare :Fredrik Vedung; Niklas Marklund; Gunnar Antoni; Elna-Marie Larsson; Jakob Johansson; Alexander Olsen; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Sport-related concussion; Soccer; Traumatic brain injury; tau; neuroinflammation; cerebral blood flow; Neurokirurgi; Neurosurgery;

    Sammanfattning : Concussions are common in contact sports. Symptoms such as confusion and/or loss of consciousness following an impact to the head indicate that a sport-related concussion (SRC) has occurred. The symptoms normally resolve within 10-14 days following an SRC in adults although at least 10 % of athletes suffer from prolonged symptoms. LÄS MER

  4. 3. Towards Automatic Image Analysis for Computerised Mammography

    Författare :Christina Olsén; Frank Drewes; Fredrik Georgsson; Gunilla Borgefors; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer Aided Diagnosis; Quality Assessment; Image Analysis; Ground Truth Assessment; Artificial Intelligence; Measurements; Segmentation Evaluation; Performance Measures; Pattern Recognition; Validation; Decision Support; Medicine; Computer science; Datavetenskap;

    Sammanfattning : Mammographic screening is an effective way to detect breast cancer. Early detection of breast cancer depends to a high degree on the adequacy of the mammogram from which the diagnosis is made. Today, most of the analysis of the mammogram is performed by radiologists. LÄS MER

  5. 4. Experimental Studies of Complex Flows through Image-Based Techniques

    Författare :Gabriele Bellani; FredrIk Lundell; James Olsen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : This thesis deals with the development of experimental techniques for the study of complex flows inspired to a large extent by the papermaking process. In particular one part of this thesis is devoted to the development of laboratory experiments based on index-of-refraction matching and imaging techniques to study the behavior of dilute and concentrated suspension of elongated particles. LÄS MER

  7. 5. Function spaces and rational inner functions on polydiscs

    Författare :Linus Bergqvist; Alan Sola; Jan-Fredrik Olsen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Complex variables; Hilbert spaces;

    Sammanfattning : In this thesis we consider problems related to rational inner functionsand several different Hilbert spaces on the unit polydisc. In the general introduction the functions and the function spaces we will be interested in are introduced, and in particular we point outproblems and phenomena that occur in higher dimensions and are notpresent for one variable functions. LÄS MER