Sökning: "theta function."

Visar resultat 1 - 5 av 22 avhandlingar innehållade orden theta function..

  1. 1. On the Mechanisms Behind Hippocampal Theta Oscillations : The role of OLMα2 interneurons

    Författare :Sanja Mikulovic; Richardson Leao; Klas Kullander; Stefan Remy; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; hippocampus; interneuron; optogenetics; theta oscillations; anxiety;

    Sammanfattning : Theta activity is one of the most prominent rhythms in the brain and appears to be conserved among mammals.  These 4-12 Hz oscillations have been predominantly studied in the dorsal hippocampus where they are correlated with a broad range of voluntary and exploratory behaviors. LÄS MER

  3. 2. The density of rational points and invariants of genus one curves

    Författare :Manh Hung Tran; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; genus one; discriminant; modular form; Elliptic curve; height; descent; determinantal representation; invariant; rational point; theta function.; determinant method;

    Sammanfattning : The present thesis contains three papers dealing with two arithmetic problems on curves of genus one, which are closely related to elliptic curves. The first problem is to study the density of rational points presented in Papers I and II. LÄS MER

  4. 3. Integrative Analysis of Dynamic Networks

    Författare :Vinay Jethava; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lovasz theta function; dynamic networks; integrative analysis; probabilistic graphical models; support vector machines; graph kernels;

    Sammanfattning : Networks play a central role in several disciplines such as computational biology, social network analysis, transportationplanning and many others; and consequently, several methods have been developed for network analysis. However, in many cases, the study of a single network is insufficient to discover patterns with multiple facets and subtlesignals. LÄS MER

  5. 4. Directed Enzyme Evolution of Theta Class Glutathione Transferase : Studies of Recombinant Libraries and Enhancement of Activity toward the Anticancer Drug 1,3-bis(2-Chloroethyl)-1-nitrosourea

    Författare :Anna-Karin Larsson; Bengt Mannervik; Ian Cotgreave; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; glutathione transferase; directed evolution; 1; 3-bis 2-chloroethyl -1-nitrosourea; alkyltransferase; recombinant libraries; chloroethylnitrosourea; multi-dimensional data analysis; Biokemi; Biochemistry; Biokemi;

    Sammanfattning : Glutathione transferases (GSTs) are detoxication enzymes involved in the cellular protection against a wide range of reactive substances. The role of GSTs is to catalyze the conjugation of glutathione with electrophilic compounds, which generally results in less toxic products. LÄS MER

  7. 5. Functional studies on the Light-harvesting-Like (LiL) Proteins in Cyanobacteria and Cryptophytes

    Författare :Tania Tibiletti; Christiane Funk; Martin Hagemann; Umeå universitet; []
    Nyckelord :Photosynthesis; cyanobacteria; Guillardia theta; photosystem II; chlorophyll-binding proteins; onehelix LiL proteins; photoprotection; biokemi; Biochemistry;

    Sammanfattning : The light-harvesting like (LiL) proteins are a widely spread group of proteins within photosynthetic organisms. They are membrane proteins composed of one to four transmembrane helices and – in homology to the light-harvesting complexes of algae and higher plants – at least one of these transmembrane helices contains the chlorophyll a/b-binding (CAB) domain. LÄS MER