Search for dissertations about: "conversion disorder"

Showing result 1 - 5 of 19 swedish dissertations containing the words conversion disorder.

  2. 1. Electron-lattice dynamics in π-conjugated systems

    Author : Magnus Hultell (Andersson); Sven Stafström; Alessandro Troisi; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; charge transport; electron-lattice dynamics; polaron; adiabatic transport; electron localization; internal conversion; Computational physics; Beräkningsfysik;

    Abstract : The work presented in this thesis concerns the dynamics in π-conjugated hydrocarbon systems. Due to the molecular bonding structure of these systems there exists a coupling between the electronic system and the phonons of the lattice. READ MORE

  4. 2. Functional Oxide Materials exhibiting Ionic Conductivity for Future Energy Conversion Needs

    Author : FRANCIS GACHAO KINYANJUI; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; neutron diffraction; perovskites; oxygen deficient perovskites; BaSnO3; Rietveld refinements; BaZrO3; in-situ cells; proton conduction; deuteron position; Ba3In2ZrO8;

    Abstract : Fuel cells are electrochemical devices that transform the chemical energy in hydrogen and oxygen into electrical energy at high efficiencies and produce only water vapour emissions. Materials with the perovskite or fluorite structure types are commonly employed as the ion conducting ceramic electrolyte membranes in intermediate and high temperature fuel cells. READ MORE

  5. 3. Effects of Energetic Disorder on the Optoelectronic Properties of Organic Solar Cells

    Author : Nikolaos Felekidis; Martijn Kemerink; Olle Inganäs; Carsten Deibel; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Organic photovoltaics (OPVs) is a promising low-cost and environmental-friendly technology currently achieving 12-14% power conversion efficiency. Despite the extensive focus of the research community over the last years, critical mechanisms defining the performance of OPVs are still topics of debate. READ MORE

  6. 4. Smith-Lemli-Opitz syndrome : a disorder of cholesterol synthesis : diagnosis, treatment and pathogenetic aspects

    Author : Lena Starck; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Smith-Lemli-Opitz syndrome; cholesterol; cholesterol treatment; dehydrocholesterols; lathosterol; oxysterols; blood paper specimens; simvastatin; clinical scoring.;

    Abstract : In 1993 it was first suggested that the Smith-Lemli-Opitz syndrome (SLOS), described almost 30 years earlier as a malformation syndrome, is caused by defective synthesis of cholesterol. Hypocholesterolaemia and accumulation of the immediate precursor 7-dehydrocholesterol was consistent with deficient activity of the enzyme in the last step of the synthesis, 7-dehydrocholesterol-7-reductase. READ MORE

  7. 5. Cardiovascular and metabolic effects of endothelins in man : an experimental and clinical study

    Author : Astrid Ottosson-Seeberger; Karolinska Institutet; Karolinska Institutet; []
    Keywords : endothelin-1; big ET-1; C-terminal big ET-1 22-3 8 fragment; hemodynamic; blood flow; fractional extraction; conversion; plasma half-life; end-stage renal failure; ischemic heart disease; hemodialysis; high-flux membrane; glucose uptake; insulin sensitivity;

    Abstract : Increased plasma concentrations of endothelin-1 (ET-1) and of its propeptide big endothelin-1 have been reported in diseases associated with endothelial dysfunction, cardiovascular remodelling and insulin resistance. In this thesis, we studied the hemodynamic effects of big ET-1 in healthy humans focusing on the mechanisms of the effects (study I-IV). READ MORE