Sökning: "Cluster expansion"

Visar resultat 21 - 25 av 35 avhandlingar innehållade orden Cluster expansion.

  1. 21. Gene expression profiles at the myotonic dystrophy 1 locus : possible role in disease mechanisms

    Författare :Maria Eriksson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Myotonic dystrophy 1 (DM1) is the commonest adult onset muscular dystrophy, (prevalence 1/8000). The disorder is characterized by anticipation (earlier onset in successive generations, which is accompanied in this disorder by an increase in severity of symptoms) and variable multisystemic symptom presentation. LÄS MER

  3. 22. Numerical studies of spin chains and cold atoms in optical lattices

    Författare :Sara Bergkvist Sylvan; Anders Rosengren; Richard Scalettar; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Teoretisk Fysik; Kondenserade materiens teori; Condensed matter physics; Kondenserade materiens fysik;

    Sammanfattning : An important, but also difficult, research field in condensed matter physics is that of strongly correlated systems. This thesis considers two topics in this field. The first topic is disorder and frustration in spin models. The introduction of disorder into quantum spin chains creates a complex problem. LÄS MER

  4. 23. X-ray spectroscopies through damped linear response theory

    Författare :Thomas Fransson; Patrick Norman; Christoph Jacob; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In order to reach a fundamental understanding of interactions between electromagnetic radiation and molecular materials, experimental measurements need to be supplemented with theoretical models and simulations. With the use of this combination, it is possible to characterize materials in terms of, e.g. LÄS MER

  5. 24. Gene networks and modules in atherosclerosis

    Författare :Jesper Lundström; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : In this thesis we are using global gene expression profiles to unravel functional gene networks and modules. The focus is atherosclerosis, a disease with manifestations in the artery wall where deposits of lipids accumulate and trigger immune responses causing the development of plaques, which upon rupture can lead to a myocardial infarction or stroke. LÄS MER

  7. 25. Evolution of cellular complexity and other remarkable features in Gemmataceae : Complex bacterial lineages defy prokaryotic trends

    Författare :Mayank Mahajan; Siv G. E. Andersson; James O. McInerney; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Molecular evolution; Planctomycetes; Gemmataceae; functional organization; signalling; protein interaction; peptidoglycan; membranes; cell division; radiation tolerance; Pfam; SCOP; comparative genomics; protein architecture; domain shuffling and orthologous clustering; Bioinformatics; Bioinformatik; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution; Biology with specialization in Molecular Biology; Biologi med inriktning mot molekylärbiologi;

    Sammanfattning : Bacteria of the family Gemmataceae belong the phylum Planctomycetes and are remarkable because of their complex cellular architectures, previously considered to be traits exclusive to eukaryotes. This thesis provides clues to the atypical cell envelope, the enhanced radiotolerance and the amazing cellular complexity of these bacteria. LÄS MER