Sökning: "Sofia Andersson"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Sofia Andersson.

  1. 1. Hidden Markov models - Traffic modeling and subspace methods

    Detta är en avhandling från Centre for Mathematical Sciences, Lund University

    Författare :Sofia Andersson; Lund University.; Lunds universitet.; [2002]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; programming; actuarial mathematics; Statistik; operationsanalys; Statistics; operations research; subspace identification; state space representation; likelihood estimation; Poissonification; traffic analysis; hidden Markov model; Markov-modulated Poisson process; programmering; aktuariematematik;

    Sammanfattning : The main motivation for this thesis, however not the only one, is the search for models for traffic in telecommunication networks. Traffic characterization and modeling are of great importance in the analysis and dimensioning of communication systems. During the last decades we have experienced an explosive growth of our telecommunication networks. LÄS MER

  2. 2. Invariant NKT cells and CD1d in HIV-1 infection

    Detta är en avhandling från Stockholm : Karolinska Institutet, Dept of Medicine, Huddinge

    Författare :Sofia Andersson; Karolinska Institutet.; Karolinska Institutet.; [2013]

    Sammanfattning : The invariant natural killer T (iNKT) cells are a subset of T lymphocytes that share characteristics of both innate and adaptive immunity. These cells are defined as T cells restricted by the lipid antigen presenting molecule CD1d and express an invariant T cell receptor (TCR) as well as classical natural killer (NK) cell markers. LÄS MER

  3. 3. Exocytosis in Type 2 Diabetes- Functional and genetic studies of hormone secretion

    Detta är en avhandling från Unit of Islet Cell Exocytosis

    Författare :Sofia A Andersson; Lund University.; Lunds universitet.; Lund University.; Lunds universitet.; [2012]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Type 2 Diabetes; Insulin; Glucagon; Alpha-cells; Beta-cells; Exocytosis; Capacitance; SNARE; SNAP25; Syntaxin1A; Synaptotagmin; Munc-18 Stxbp1 ; SNP; Expression; miRNA;

    Sammanfattning : Type 2 Diabetes (T2D) is characterized by dysregulated beta-and alpha-cell hormone secretion leading to elevated blood glucose levels. Several proteins are crucial in maintaining exocytosis of the hormone-containing granules such as Syntaxin1A (Stx1A), SNAP25, Munc-18 (Stxbp1) and the family of Synaptotagmins (Syts). LÄS MER

  4. 4. Characterization of Bacterial Biofilms for Wastewater Treatment

    Detta är en avhandling från Stockholm : Kungliga Tekniska Högskolan

    Författare :Sofia Andersson; KTH.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biofilm; extracellular polymeric substances; exopolysaccharides; interspecies interactions; wastewater treatment; denitrification; phosphorus removal; NATURAL SCIENCES Biology Organism biology Microbiology; NATURVETENSKAP Biologi Organismbiologi Mikrobiologi;

    Sammanfattning : Research performed at the Division of Environmental Microbiology has over the last years resulted in the isolation of possible bacterial key-organisms with efficient nutrient removal properties (Comamonas denitrificans, Brachymonas denitrificans, Aeromonas hydrophila). Effective use of these organisms for enhanced nutrient removal in wastewater treatment applications requires the strains to be retained, to proliferate and to maintain biological activity within theprocess. LÄS MER

  5. 5. Contact Sensitizers Induce Keratinocytes to Release Epitopes - Tools for In Vitro Tests and Implications for Autoimmunity

    Detta är en avhandling från Stockholm : Kungliga Tekniska Högskolan

    Författare :Sofia Andersson; Göteborgs universitet.; Gothenburg University.; [2011]

    Sammanfattning : .... LÄS MER