Sökning: "Di Sun"

Hittade 5 avhandlingar innehållade orden Di Sun.

  1. 1. Epigenetics in nasopharyngeal carcinoma

    Författare :Di Sun; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :NPC; Methylation; TSG; EBV; LMP1; CDH13; RASSF2A; MMSP;

    Sammanfattning : Nasopharyngeal carcinoma (NPC) shows a remarkably distinctive ethnic and geographic distribution among the world suggesting that genetic susceptibility backgrounds cooperate with the environmental risk factors in etiology of NPCs. Among the environmental factors, much attention has been focused on a well-documented association with Epstein-Barr virus (EBV), which can be detected in 100% undifferentiated NPCs. LÄS MER

  3. 2. Ab initio study of transition metal carbides and actinide compounds

    Författare :Weiwei Sun; Pavel Korzhavyi; Igor Di Marco; Börje Johansson; Leon Petit; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computational material science; material physics; Materials Science and Engineering; Teknisk materialvetenskap;

    Sammanfattning : Two classes of materials are investigated using ab intio methods based on density functional theory. The structural properties, electronic structure and thermodynamic properties of binary and ternary transition metal carbides are discussed in details. In addition, two actinide compounds will be presented. LÄS MER

  4. 3. Regulatory mechanisms involved in pathoadaptation of extraintestinal pathogenic Escherichia coli

    Författare :Nikola Zlatkov; Bernt Eric Uhlin; Åke Forsberg; Sun Nyunt Wai; Eliora Ron; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ExPEC; PAIs; pathoadaptation; citrate; metabolism; filamentation; toxins; molekylärbiologi; Molecular Biology; mikrobiologi; Microbiology;

    Sammanfattning : Establishment of commensal bacteria within a new niche of their host usually promotes the transition from commensalism to pathogenicity. Extraintestinal Pathogenic Escherichia coli (ExPEC) represent different pathovars with biphasic lifestyle – they can reside in the gut as commensals or they can escape and cause diseases elsewhere in the human body. LÄS MER

  5. 4. Characterisation of Organic Dyes for Solid State Dye-Sensitized Solar Cells

    Författare :Ute Cappel; Anders Hagfeldt; Gerrit Boschloo; Udo Bach; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; energy alignment; hole conductor; injection; interface; perylene; photo-induced absorption; regeneration; spectroelectrochemistry; spiro-MeOTAD; Stark effect; titanium dioxide; Physical chemistry; Fysikalisk kemi; Physical Chemistry; Fysikalisk kemi;

    Sammanfattning : Energy from the sun can be converted to low cost electricity using dye-sensitized solar cells (DSCs). Dye molecules adsorbed to the surface of mesoporous TiO2 absorb light and inject electrons into the semiconductor. LÄS MER

  7. 5. Thin films of polyfluorene:fullerene blends - Morphology and its role in solar cell performance

    Författare :Cecilia Björström Svanström; Ellen Moons; Jean Manca; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymer Solar Cells; Polymer Blends; Morphology; Polyfluorene; PCBM; AFM; SIMS; Spin-Coating; Surface Directed Spinodal Decomposition; Physics; Fysik; Physics; Fysik;

    Sammanfattning : The sun provides us daily with large quantities of energy in the form of light. With the world’s increasing demand of electrical energy the prospect of converting this solar light into electricity is highly tempting. In the strive towards mass-production and low cost solar cells, new types of solar cells are being developed, e.g. LÄS MER