Sökning: "Thomas Johnson"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Thomas Johnson.

  1. 1. Fast wave heating of cyclotron resonant ions in tokamaks

    Författare :Thomas Johnson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fusion plasma; tokamak; RF heating; fast wave heating; fast wave current drive; ion cyclotron resonance; ICRH; ICRF; ICCD; RF induced rotation; RF induced transport; RF induced pinch; RF pinch; finite orbit width; fast wave current drive; self-consi; Engineering physics; Teknisk fysik;

    Sammanfattning : .... LÄS MER

  3. 2. Problematisk opioidanvändning : om opioidrelaterade dödsfall och LARO i södra Sverige

    Författare :Lisa Andersson; Björn Johnson; Anders Håkansson; Thomas Clausen; Malmö universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; benzodiazepines; competition; empowerment; harm reduction; low threshold; mortality; opioids; opioid substitution treatment; opioid-related deaths; patient choice; treatment access; treatment providers;

    Sammanfattning : Problematic opioid use constitutes an extensive global problem. Correspondingly, opioid-related mortality is high and has increased in several Western countries, including Sweden, during the 2000s. In Sweden, the most effective treatment method, opioid substitution treatment (OST), was for a long time limited with respect to the number of patients. LÄS MER

  4. 3. Numerical solution of quasilinear kinetic diffusion equations in toroidal plasmas

    Författare :Lars Josef Höök; Torbjörn Hellsten; Thomas Johnson; Jukka Heikkinen; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : One of the main challenges for the realization of a working fusion power plant is an increased detailed understanding of kinetic phenomena in toroidal plasmas. The tokamak is a toroidal, magnetically confined plasma device and is currently the main line towards a power plant. LÄS MER

  5. 4. Variance reduction methods for numerical solution of plasma kinetic diffusion

    Författare :Lars Josef Höök; Torbjörn Hellsten; Thomas Johnson; Lars-Göran Ericsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; variance reduction; Monte Carlo; quasi-Monte Carlo; kinetic diffusion; stochastic differential equation;

    Sammanfattning : Performing detailed simulations of plasma kinetic diffusion is a challenging task and currently requires the largest computational facilities in the world. The reason for this is that, the physics in a confined heated plasma occur on a broad range of temporal and spatial scales. LÄS MER

  7. 5. En dyster parentes – opiatregeln i svensk LARO-behandling 2010–2016

    Författare :Bodil Monwell; Arne Gerdner; Björn Johnson; Per Bülow; Thomas Clausen; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; opiates; opioids; opioid maintenance treatment; methadone; buprenorphine; regulation; National Board of Health and Welfare; opiater; opioider; opioidberoende; buprenorfin; metadon; läkemedelsassisterad behandling; föreskrift; Socialstyrelsen;

    Sammanfattning : Opioids are well documented to arouse euphoria, relieve pain, and to have a high dependency potential. Opioid dependence is a serious chronic condition with a high risk of extensive worsened health, relapse and premature death.Opioid maintenance treatment (OMT) is well researched and has strong scientific support. LÄS MER