Sökning: "new species"

Visar resultat 21 - 25 av 1349 avhandlingar innehållade orden new species.

  1. 21. Taxonomy and Systematics of Thelephorales – Glimpses Into its Hidden Hyperdiversity

    Författare :Sten Svantesson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Thelephorales; Tomentella; Polyozellus; Pseudotomentella; Amaurodon; Hydnellum; Sarcodon; species delimitation; cryptic species; molecular systematics; ectomycorrhiza; basidiomata shape;

    Sammanfattning : The order Thelephorales is a widespread group of many thousands of species of ecologically important, ectomycorrhizal fungi, of which only a fraction have been described to date. Most species are corticioid (skin-like) and form complexes of morphologically similar, closely related species. LÄS MER

  3. 22. The Quest for Functional Quasi-Species in Glutathione Transferase Libraries

    Författare :Arna Rúnarsdóttir; Bengt Mannervik; Ralf Morgenstern; Uppsala universitet; []
    Nyckelord :glutathione transferase; directed evolution; multivariate analysis; quasi-species; isothiocyanates; Biokemi; Biochemistry;

    Sammanfattning : Glutathione transferases (GSTs) are good candidates for investigations of enzyme evolution, due to their broad substrate specificities and structural homology. The primary role of GSTs is to act as phase II detoxifying enzymes protecting the cell from toxic compounds of both endo- and exogenous origins. LÄS MER

  4. 23. Prediction of Chloride Penetration into Saturated Concrete Multi-Species Approach

    Författare :Olivier Truc; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; diffusion; concrete; multi-species; chloride; corrosion; migration;

    Sammanfattning : The cost due to rehabilitation of corroded reinforced concrete structures is a worldwide matter of concern. The mechanisms of reaction-diffusion involved during the transport of chloride ions into saturated concrete, which are initiating the corrosion process, are therefore studied in this thesis. LÄS MER

  5. 24. The Gene Repertoire of G protein-coupled Receptors : New Genes, Phylogeny, and Evolution

    Författare :Þóra Kristín Bjarnadóttir; Helgi B. Schiöth; Robert Fredriksson; Kurt Kristiansen; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacology; Bioinformatics; Evolution; GPCR; Phylogeny; Farmakologi; Pharmacological research; Farmakologisk forskning;

    Sammanfattning : The superfamily of G protein-coupled receptors (GPCRs) is one of the largest protein families of mammalian genomes and can be divided into five main families; Glutamate, Rhodopsin, Adhesion, Frizzled, and Secretin. GPCRs participate in most major physiological functions, contributing to the fact that they are important targets in drug discovery. LÄS MER

  7. 25. Ecosystem response to dam removal

    Författare :Anna G.C. Lejon; Christer Nilsson; Birgitta Malm Renöfält; Emily Stanley; Umeå universitet; []
    Nyckelord :dam removal; macroinvertebrates; plant species; plant succession; restoration; riparian zone; sediment deposition; species richness; Sweden; biology; biologi; ekologisk botanik; Ecological Botany; hydrologi; Hydrology;

    Sammanfattning : This thesis aims to improve our understanding of how riverine ecosystems respond to dam removal. Riverine and particularly riparian ecosystems are among the most variable and important features of all landscapes. LÄS MER