Sökning: "experimental studies"

Visar resultat 6 - 10 av 4283 avhandlingar innehållade orden experimental studies.

  1. 6. MRI Diagnosis of Intracranial Hemorrhage : Experimental and Clinical Studies

    Författare :Montserrat Alemany Ripoll; Kaj Ericsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; hemorrhage; experimental; MRI; T2*-w GE sequence; old microhemorrhages; stroke; Radiologisk forskning; Radiological research; Radiologisk forskning; radiologi; Radiology;

    Sammanfattning : The purpose of this work was to improve the diagnosis of intracranial hemorrhage with MRI, using, among others, T2*-w GE sequences. Various sequences were tested in rabbits at two magnetic field strengths. Then, the most effective technique was applied to stroke patients. LÄS MER

  3. 7. On intestinal ischaemia after aortoiliac surgery : Epidemiological, clinical and experimental studies

    Författare :Martin Björck; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; Ischaemia; intestines; colon; ischaemic colitis; aorta-abdominal; aortic aneurysm-abdominal; aortic rupture; atherosclerosis; postoperative complications; cohort studies; case-control studies; clinical protocols; experimental design; incidence; risk factors; diagnosis; treatment outcome; intra-mucosal pH; pHi; swine; splanchnic circulation; haemodynamics; dobutamine; Kirurgi; Surgery; Kirurgi; Surgery; kirurgi;

    Sammanfattning : An important cause of death among patients undergoing surgery of the abdominal aorta is intestinal ischaemia. In the Swedish Vascular Registry 2930 aortoiliac operations were identified. The complication was studied in a combined cohort and case-control study, and multivariate analysis performed. The incidence of intestinal ischaemia was 2. LÄS MER

  4. 8. The dynamics of beamline configurations and user communities : Quantitative studies of Big Science publications

    Författare :Kristofer Rolf Söderström; digitala kulturer samt förlags- och bokmarknadskunskap Avdelningen för ABM; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; metadata; bibliometrics; beamlines; user community;

    Sammanfattning : This thesis examines the role of beamlines with publication metadata from the European Synchrotron Radiation Facility (ESRF a large scientific facility offering diverse conditions for scientific research. As a user-oriented Big Science facility, the ESRF channels extremely brilliant light into different experimental areas called beamlines that house specific instruments that cater to the needs of diverse user communities. LÄS MER

  5. 9. "Filmreformens förste avantgardist" : Experimentfilmaren Peter Kylberg

    Författare :Lars Diurlin; Olof Hedling; Max Liljefors; Bo Florin; Filmvetenskap; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; Peter Kylberg; Avant-Garde; Experimental Film; Film Policy; Cultural Policy; Swedish Cinema; Swedish Welfare State; Film Studies; Modernism; Cinematic Modernism; Abstraction; Negation; The Swedish Film Institute; Harry Schein; Svensk Filmindustri; Sandrews; Sveriges Radio; Minor Cinemas; Statens Filmpremienämnd; Diary Film; Exile Film; Autobiographical Film; Trance Film; City Symphonies; Expanded Cinema; Structural Film; Gesamtkunstwerk; Peter Kylberg; Experimentfilm; Biografier; Regissörer; Filmpolitik; Kulturpolitik; Avantgarde; Avantgardefilm; Svenska Filminstitutet; Harry Schein; Film Studies; Filmvetenskap; Art science; Konstvetenskap; Historia; History; Peter Kylberg; Avant-Garde; Experimental; Film Policies; Cultural Policies; Swedish Cinema; Swedish Welfare State; Film Studies; Modernism; Cinematic Modernism; Abstraction; Negation; The Swedish Film Institute; Harry Schein; Svensk Filmindustri; Sandrews; Sveriges Radio; Minor Cinemas; Statens Filmpremienämnd; Diary Film; Exile Film; Autobiographical Film; Trance Film; City Symphonies; Expanded Cinema; Structural Film; Gesamtkunstwerk;

    Sammanfattning : This dissertation is about the Swedish filmmaker, painter and composer Peter Kylberg (1938–). The study examines how Swedish film-cultural and film-political actors interacted with Kylberg in his ambition to create a particular type of expression in the film medium. LÄS MER

  7. 10. Experimental Evolution : and Fitness Effects of Mutations

    Författare :Anna Knöppel; Dan I Andersson; Stanley Maloy; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Experimental evolution; Fitness effects; mutations; S20; fis; ribosome; horizontal gene transfer; adaptation; synonymous mutations; Mikrobiologi; Microbiology;

    Sammanfattning : Bacteria have small, streamlined genomes and evolve rapidly. Their large population sizes allow selection to be the main driver of evolution. With advances in sequencing technologies and precise methods for genetic engineering, many bacteria are excellent models for studying elementary questions in evolutionary biology. LÄS MER