Sökning: "helenius"

Visar resultat 1 - 5 av 18 avhandlingar innehållade ordet helenius.

  1. 1. Tissue engineering in blood vessels

    Författare :Gisela Helenius; Göteborgs universitet; []
    Nyckelord :tissue engineering; vascular graft; endothelial cells; smooth muscle cells; thrombogenicity; mechanical properties; scaffold; bacterial cellulose;

    Sammanfattning : Severely occluded coronary- and peripheral arteries, caused by atherosclerotic plaques, are treated with bypass surgery. Autologous veins are the most commonly used replacement graft. Among the patients that need a vascular bypass, 5-10% lack appropriate replacement veins due to previous surgery of bad quality of the vessels. LÄS MER

  3. 2. Investigation of Bladder Tumors with CT Urography in Patients Presenting with Gross Hematuria

    Författare :Malin Helenius; Anders Magnusson; Torbjörn Andersson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; CT Urography; Bladder tumor; Gross hematuria; Tissue charactarization; Bladder distension; Tumor detection; Radiology; Radiologi;

    Sammanfattning : Bladder tumor is the most common tumor detected in patients presenting with gross hematuria. Early detection and treatment is crucial for good prognosis, however, delay in diagnosis and treatment is common. Routine work-up of gross hematuria includes cystoscopy and Computed Tomography Urography (CTU). LÄS MER

  4. 3. Kummer's lemma and Picard groups of integer group rings

    Författare :Ola Helenius; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 4. On the Picard Group of Integer Group Rings

    Författare :Ola Helenius; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Picard group; Grothendieck group; integer group ring; cyclic group; cyclotomic field; class group; Kummer´s lemma; semi-regular prime; Picard group;

    Sammanfattning : .... LÄS MER

  7. 5. Mathematics in the Swedish Upper Secondary School Electricity Program : A study of teacher knowledge

    Författare :Lena Aretorn; Manya Raman Sundström; Tomas Bergqvist; Ola Helenius; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; mathematics education; teacher knowledge; electricity education; upper secondary school; vocational education; Swedish secondary school; didactics of mathematics; matematikdidaktik;

    Sammanfattning : Mathematical knowledge is often a prerequisite for students at Swedish upper secondary vocational programs to be able to study vocational courses, for example electricity courses in the Electricity Program. Electricity Program students study mathematics in their electricity courses as well as in their mathematics course. LÄS MER