Sökning: "Double contrast"

Visar resultat 16 - 20 av 169 avhandlingar innehållade orden Double contrast.

  1. 16. Conjugated linoleic acid and the metabolic syndrome : Clinical and metabolic studies with special reference to insulin resistance, oxidative stress and inflammation

    Författare :Ulf Risérus; Keith Frayn; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; Metabolic syndrome; dietary fatty acids; conjugated linoleic acid; insulin resistance; oxidative stress; inflammation; cardiovascular disease; dyslipidemia; abdominal obesity; type 2 diabetes; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin; Nutrition; näringslära;

    Sammanfattning : The aim of this thesis was to investigate the metabolic effects of conjugated linoleic acid (CLA) in middle-aged men with the metabolic syndrome, a high-risk group for type 2 diabetes. CLA is a group of fatty acid isomers with antiobesity and antidiabetogenic effects in animals, and CLA is therefore used as a supplement in humans. LÄS MER

  3. 17. Final-State-Resolved Mutual Neutralization of Li+ and H-

    Författare :Alice F. Schmidt-May; Henning T. Schmidt; Fivos Perakis; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DESIREE; ion; mutual neutralization; collision; lithium; hydrogen; Physics; fysik;

    Sammanfattning : We studied the mutual neutralization of Li+ and H- at effective collision energies of a few hundred meV, which corresponds to temperatures of around 2000 K, in the double ion storage ring DESIREE.We present a new approach to match beam velocities and a new general analysis method for non-fragmenting mutual neutralization at DESIREE. LÄS MER

  4. 18. Persistence of polyomavirus : versus immunity to polyoma tumors

    Författare :Zsofia Berke; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :polyomavirus persistence; CD4--; CD8--; IgM--; XID; SCID; TSTA; T-antigen; tumor rejection.;

    Sammanfattning : The aim of this thesis was to understand the role of different specific immune effectors with regard to polyomavirus persistence and polyomavirus induced tumor development. Furthermore, an MHC class I restricted short viral peptide was identified as a target for polyomavirus specific recognition of polyoma tumor cells. LÄS MER

  5. 19. The optical properties of automatically darkening welding filters based on liquid crystal technology

    Författare :Stephen Palmer; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; Fysik; Solid State Physics; fasta tillståndets fysik;

    Sammanfattning : This thesis addresses the problem of the poor optical angular properties displayed by automatically darkening welding filters that are based on liquid crystal technology. It is shown that by reducing thetwist-angle present in the liquid crystal cell to below that of 90° together with employment of a novel polariser arrangement, an optical shutter design using a double-cell construction is obtained thatpossesses a reduced angular transmittance variation when in the activated phase. LÄS MER

  7. 20. Theory of electronic structure and transport in heterostructure nanowires

    Författare :Florinda Viñas Boström; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electronic structure; electron transport; nano; quantum; InAs; GaSb; topological; nanowires; quantum dots; Fysicumarkivet A:2020:Vinas Boström;

    Sammanfattning : Today, semi-conductor nanowires can be grown with very high precision, using epitaxy. This allows for studies of new nanowire-based quantum devices, likely to be part of novel quantum technologies in the future. This thesis concerns nanostructures based on InAs nanowires. LÄS MER