Search for dissertations about: "Anna Arnqvist"

Showing result 1 - 5 of 6 swedish dissertations containing the words Anna Arnqvist.

  2. 1. Helicobacter pylori : molecular mechanisms for variable adherence properties

    Author : Anna Vallström; Anna Arnqvist; Kristian Riesbeck; Umeå universitet; []
    Keywords : H. pylori; adherence; BabA; SabA; Leb; sLex; phase variation; recombination; vesicles;

    Abstract : More than half of all people worldwide are infected with H. pylori. The infection always cause a gastric inflammation that may develop into peptic ulcer disease or gastric cancer. Attachment proteins, adhesins, mediate specific adherence of H. READ MORE

  4. 2. Mean Wind and Turbulence Conditions in the Boundary Layer above Forests

    Author : Johan Arnqvist; Hans Bergström; Anna Rutgersson; Stefan Söderberg; Søren Larsen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Wind power; Forest; Turbulence; Waves; Spectra; Wind model; Atmospheric stability; Vindkraft; Skog; Turbulens; Vågor; Spektra; Modell; Atmosfärisk stabilitet;

    Abstract : As wind turbines have grown, new installation areas become possible. Placing wind turbines in forested landscapes introduce uncertainties to the wind resource estimation. READ MORE

  5. 3. Helicobacter pylori : molecular insights into regulation of adhesion properties

    Author : Pär Gideonsson; Anna Arnqvist; Thomas Borén; Hilde De Reuse; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Helicobacter pylori; medicinsk biokemi; Medical Biochemistry;

    Abstract : Helicobacter pylori infects the human stomach and triggers an inflammatory response that damages the gastric tissue. This host-pathogen interplay has dire consequences as up to 20 % of infected individuals develop peptic ulcer disease or gastric cancer. READ MORE

  6. 4. Local Effects On Icing Forecasts for Wind Power In Cold Climate

    Author : Erik Janzon; Anna Rutgersson; Johan Arnqvist; Metodija Shapkalijevski; Heiner Körnich; Ebba Dellwik; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis will examine the local effects of land cover on icing forecasts. In Paper I, a single column model was used to test the sensitivity of icing forecasts to land cover fraction. Here, the ice accretion forecast was found to be highly sensitive to the wind magnitude response to the surface roughness. READ MORE

  7. 5. Local Effects On Icing Forecasts for Wind Power In Cold Climate

    Author : Erik Janzon; Anna Rutgersson; Metodija Shapkalijevski; Heiner Körnich; Johan Arnqvist; Alfredo Peña; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Meteorologi; Meteorology;

    Abstract : Understanding the risk of atmospheric icing on wind turbines is crucial for the operation of wind farms in cold climate regions. Processes leading to atmospheric icing in the planetary boundary layer are subject to interactions with the land surface--the details of which are largely unknown in current numerical weather prediction models and must be parameterized. READ MORE