Sökning: "niklas bergström"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden niklas bergström.

  1. 1. Structural studies of bacterial carbohydrate antigens with focus on oral commensal bacteria

    Författare :Niklas Bergström; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Streptococcus mitis; Streptococcus pneumoniae; Vibrio cholerae; polysaccharide; structure; Nuclear magnetic resonance spectroscopy NMR ; Mass spectrometry MS .;

    Sammanfattning : 90% of the total number of cells in the human body consist of the normal bacterial flora. These bacteria are mostly not harmful and, indeed, even beneficial as long as they remain physiologically outside the body, e.g., within the gastro-intestinal tract. LÄS MER

  3. 2. Interactive Perception : From Scenes to Objects

    Författare :Niklas Bergström; Danica Kragic; Yiannis Aloimonos; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis builds on the observation that robots, like humans, do not have enough experience to handle all situations from the start. Therefore they need tools to cope with new situations, unknown scenes and unknown objects. In particular, this thesis addresses objects. LÄS MER

  4. 3. Synthesis and modification of potential CO2 adsorbents : Amine modified silica and calcium carbonates

    Författare :Baroz Aziz; Niklas Hedin; Lennart Bergström; Helmut Cölfen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Amine-modified silica; carbon capture; Fractional factorial design; IR spectroscopy; calcium carbonate; Materials Chemistry; materialkemi;

    Sammanfattning : The prospect of rapid changes to the climate due to global warming is subject of public concern. The need to reduce the emissions of atmospheric green house gases and in particular carbon dioxide is greater than ever. Extensive research is performed to find new solutions and new materials, which tackles this problem in economically benign way. LÄS MER

  5. 4. Following nanoparticle self-assembly in real-time : Small-angle X-ray scattering and quartz crystal microbalance study of self-assembling iron oxide nanocubes

    Författare :Martin Kapuscinski; Lennart Bergström; Niklas Hedin; Andrei Petukhov; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; self-assembly; mesocrystal; time-resolved; small-angle X-ray scattering; iron oxide nanocubes; QCM-D; Materials Chemistry; materialkemi;

    Sammanfattning : Self-assembly of nanoparticles is a widely used technique to produce nanostructured materials with crystallographic coherence on the atomic scale, i.e. mesocrystals, which can display useful collective properties. This thesis focusses on the underlying mechanism and dynamics of mesocrystal formation by using real-time techniques. LÄS MER

  7. 5. Cellular receptors for species B adenoviruses

    Författare :Marko Marttila; Niklas Arnberg; Göran Wadell; Tomas Bergström; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Adenovirus; CD46; CD80; CD86; Species B; Receptor; Internalization; Infection; Tropism; Virology; Virologi;

    Sammanfattning : Adenoviruses belong to the most common human pathogens. The severity of infection varies greatly, from subclinical to lethal, depending on the virus type and immune status of the infected host. The 51 known human adenovirus serotypes are divided into six species (A-F) based on characteristics such as tropism. LÄS MER