Search for dissertations about: "hall effect"

Showing result 1 - 5 of 80 swedish dissertations containing the words hall effect.

2. 1. T cell responses and NK cell function in experimental autoimmune diabetes

   Author : Håkan Hall; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : The immune system is regulated by several complex mechanisms to maintain self tolerance and prevent autoimmune diseases. However, genetic as well as environmental factors can increase the risk of breaking self tolerance. Autoimmune diabetes is a polygenic disorder characterized by the selective destruction of pancreatic beta cells. READ MORE

4. 2. Bacteremia after oral surgical procedures and antibiotic prophylaxis

   Author : Gunnar Hall; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : The use of antibiotic prophylaxis in patients predisposed to infective endocarditis who are undergoing oral surgical procedures is widely accepted. Because no controlled clinical trials of antibiotic regimens for the prevention of endocarditis in humans have been done, recommendations are based on results of, e.g. READ MORE

5. 3. Quasiparticles in the Quantum Hall Effect

   Author : Janik Kailasvuori; Thors Hans Hansson; Jan Myrheim; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; quantum Hall effect; quasiparticles; noncommutative Chern-Simons theory; nonabelian statistics; thin torus; p-wave superconductivity; topology; index theory; effective gauge fields; Condensed matter physics; Kondenserade materiens fysik;

   Abstract : The fractional quantum Hall effect (FQHE), discovered in 1982 in a two-dimensional electron system, has generated a wealth of successful theory and new concepts in condensed matter physics, but is still not fully understood. The possibility of having nonabelian quasiparticle statistics has recently attracted attention on purely theoretical grounds but also because of its potential applications in topologically protected quantum computing. READ MORE

6. 4. Effects of future climate on carbon assimilation of boreal Norway spruce

   Author : Marianne Hall; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; bud development; climate change; empirical models; gas exchange; photosynthesis; Picea abies; seasonality; whole-tree chambers;

   Abstract : In boreal forests, the main factors limiting biomass production are the harsh climate, which combines a short growing season and low annual levels of incoming solar energy, and the limited availabilit... mery of nitrogen. READ MORE

7. 5. Empirical Essays on Education and Social Insurance Policies

   Author : Caroline Hall; Per Johansson; Peter Fredriksson; Richard Blundell; Uppsala universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi; nationalekonomi; Economics;

   Abstract : This thesis consists of four self-contained essays. Essay 1: This paper evaluates the ef­fects of the introduction of a more comprehensive upper secondary school system in Swe­den in the 1990s. READ MORE