Sökning: "Stefan Johnsson"

Hittade 4 avhandlingar innehållade orden Stefan Johnsson.

  1. 1. Development and evaluation of an independent system for absorbed dose calculations in radiotherapy

    Författare :Stefan Johnsson; Lund Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; medicinsk instrumentering; tomografi; radiologi; Klinisk fysiologi; tomography; medical instrumentation; radiology; Clinical physics; cancer; Cytologi; onkologi; cancerology; oncology; Cytology; PDA; mini-phantom; in-air equivalence; primary kerma; transmission measurement; stopping power ratio; entrance dose; beam quality; quality control; error prevention; monitor unit calculation; radiation therapy; dose calculation;

    Sammanfattning : The aim of this work was to develop, implement and evaluate an independent system with which to calculate the absorbed dose, delivered by high-energy X-ray beams, to the prescription point and the depth of dose maximum. The introduction of such a system in the clinical routine may help ensure high-quality treatment and avoidance of errors which may jeopardise the clinical outcome of the treatment (i. LÄS MER

  3. 2. Performance and performance measurements in complex product development

    Författare :Stefan Johnsson; Mälardalens högskola; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP; Innovation and Design; innovation och design;

    Sammanfattning : In today’s competitive environment, in which competition increases and the pace of technological change accelerates, the need for deploying product development investments more efficiently and effectively is stronger than ever. The ability to create streams of new successful products to the market is vital for every product delivering company’s survival. LÄS MER

  4. 3. Trust in Biobank Research : Meaning and Moral Significance

    Författare :Linus Johnsson; Mats G. Hansson; Gert Helgesson; Stefan Eriksson; Berge Solberg; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biobank; biobank research; bioethics; biobank ethics; research ethics; trust; trustworthiness; moral responsibility; informed consent; ethics review; ethics guidelines; Bioetik; Bioethics;

    Sammanfattning : What role should trust have in biobank research? Is it a scarce resource to be cultivated, or does its moral significance lie elsewhere? How does it relate to the researcher’s individual responsibility?In this thesis I draw four general conclusions. First, trust is still very much present in at least some biobanking settings, notably in Sweden, but possibly also internationally. LÄS MER

  5. 4. Institutionalisering på hemmaplan : En idés resa i den sociala barnavården

    Författare :Thorbjörn Ahlgren; Verner Denvall; Johnsson Eva; Stefan Wiklund; Linnéuniversitetet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Youth care; child welfare services; home-besed care; alternative care; Social work; organizational theory; translated ideas; agenda setting; Socialt arbete; Social Work;

    Sammanfattning : This thesis describes and analyses in three substudies how home-based measures for children are expanding and why an open care idea are established as part of the Swedish child welfare. The first substudy describes the national increment of what today can be considered as a treatment policy – non-institutional care in child welfare. LÄS MER