Sökning: "Ulf Ekström"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Ulf Ekström.

1. 1. Mutation Analysis and Hypercholesterolemia: Studies in FH patients and in healthy middle-aged men with high, low, or increasing cholesterol levels during a six-year follow-up (the CRISS study)

   Författare :Ulf Ekström; Avdelningen för klinisk kemi och farmakologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Klinisk kemi; Clinical chemistry; LDL receptor; Mutation; risk factor; FH; familial hypercholesterolemia;

   Sammanfattning : Our aims were to characterize familial hypercholesterolemia (FH) in a Swedish FH population and to further elucidate the clinical expression and treatment response in relation to genotype. Secondly, we wanted to identify gene variants, which may have impact on cholesterol levels in apparently healthy subjects. LÄS MER

3. 2. Birefringences and X-ray absorption from relativistic and nonrelativistic quantum chemical methods

   Författare :Ulf Ekström; Linköpings universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : Application of quantum chemical methods for the prediction and interpretation of optical and X-ray experiments have been performed. X-ray absorption and X-ray photo-electron spectroscopy of pentacene in the gas phase has been studied using the static exchange approximation. LÄS MER

4. 3. Time-dependent molecular properties in the optical and x-ray regions

   Författare :Ulf Ekström; Patrick Norman; Knut Faegri; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Quantum chemistry; molecular physics; x-ray spectroscopy; relativity; Computational physics; Beräkningsfysik;

   Sammanfattning : Time-dependent molecular properties are important for the experimental characterization of molecular materials. We show how these properties can be calculated, for optical and x-ray frequencies, using novel quantum chemical methods. LÄS MER

5. 4. Medborgarnas röster : studier av Internet som politisk offentlighet

   Författare :Ulf Buskqvist; Mats Ekström; Tanja Storsul; Örebro universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Internet; democracy; deliberation; public sphere; interactivity; interaction; multimodal discourse; politics; NGO; online journalism; Media and communication studies; Medie- och kommunikationsvetenskap; Media and Communication Studies; Medie- och kommunikationsvetenskap; Media and Communication Studies;

   Sammanfattning : The Voices of the Citizens: Studies of the Internet as Political Public Sphere. The purpose of the study is to investigate the conditions for and forms of citizen participation in the websites’ communicative practices. LÄS MER

7. 5. Oxidation and corrosion fatigue aspects of cast exhaust manifolds

   Författare :Madeleine Ekström; Stefan Jonsson; Ulf Olofsson; Babette Tonn; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cast exhaust manifolds; high-temperature corrosion; high-temperature low-cycle fatigue; high-temperature corrosion fatigue; ductile cast irons; cast stainless steel; Materials Science and Engineering; Teknisk materialvetenskap;

   Sammanfattning : Emission regulations for heavy-duty diesel engines are becoming increasingly restrictive to limit the environmental impacts of exhaust gases and particles. Increasing the specific power output of diesel engines would improve fuel efficiency and greatly reduce emissions, but these changes could lead to increased exhaust gas temperature, increasing demands on the exhaust manifold material. LÄS MER