Sökning: "David Brown"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden David Brown.

  1. 1. Ordering in Crystalline Short-Chain Polymer Electrolytes

    Författare :Anti Liivat; Joseph Nordgren; Josh Thomas; Daniel Brandell; David Brown; Uppsala universitet; []
    Nyckelord :Atomic and molecular physics; polymer electrolytes; molecular dynamics; ionic conductivity; crystalline ordering; polymer chain length; smectic; nematic; Atom- och molekylfysik;

    Sammanfattning : Polymer electrolytes are the most obvious candidates for safe "all-solid" Li-ion batteries and other electrochemical devices. However, they still have relatively poor ionic conductivities, which limits their wider adoption in commercial applications. LÄS MER

  3. 2. Alterations in receptor expression and function in scrapie-infected neuronal cell lines

    Författare :Heléne Lindegren; Katarina Bedecs; David Brown; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurobiology; Neurobiologi;

    Sammanfattning : This study shows that lipopolysaccharide (LPS) induces a robust, concentration-and time-dependent increase in nitric oxide (NO) production in the murine neuroblastoma cell line N2a by increased expression of iNOS. However, in scrapie-infected N2a cells (ScN2a), the LPS-induced NO production was completely abolished. LÄS MER

  4. 3. Mobility is the Message : Experiments with Mobile Media Sharing

    Författare :Mattias Rost; Barry Brown; Kristina Höök; David Ayman Shamma; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; mobile; media; sharing; design; studies; mobility; trials; foursquare; music sharing; co-present interaction; goffman; ubicomp; hci; mobile hci; Man-Machine-Interaction MMI ; människa-maskin-interaktion MMI ;

    Sammanfattning : This thesis explores new mobile media sharing applications by building, deploying, and studying their use. While we share media in many different ways both on the web and on mobile phones, there are few ways of sharing media with people physically near us. LÄS MER

  5. 4. Migration in anadromous brown trout

    Författare :David Aldvén; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Downstream migration; Temperature; Discharge; Genetics; Growth rate; Climate change; Salmo trutta; Salmo salar; Sea trout; Salmon; Biology; Ecology;

    Sammanfattning : This thesis investigates the anadromous migration of brown trout (Salmo trutta) with the overall aim to improve stock management within the region. Several field studies were conducted in different streams and coastal areas on the west coast of Sweden specifically aimed to evaluate environmental triggers for migration (Paper I), migration pathways and strategies (Paper III and IV) as well as the genetic differentiation of anadromous populations of brown trout (Paper V). LÄS MER

  7. 5. Brown adipose tissue recruitment in-vivo and in-vitro

    Författare :David Herron; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Brown adipose tissue recruitment was studied in the newborn hamster and in brown adipocyte precursor cell cultures.In the newborn hamster, the development of the thermogenic potential of brown adipose tissue was followed by estimating the amount of the uncoupling protein thermogenin by the binding of GDP to the mitochondria. LÄS MER