Sökning: "ulf bergström"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden ulf bergström.

  1. 1. Clinical and epidemiologic aspects of Rheumatoid Arthritis. Special emphasis on cardiovascular outcome and risk factors

    Författare :Ulf Bergström; Internmedicin - epidemiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Rheumatoid arthritis; Cardiovascular disease and Risk factors;

    Sammanfattning : Rheumatoid arthritis (RA) is a systemic disease, with an increased risk of co-morbidity from cardiovascular disease (CVD), in particular among those with severe disease. Environmental risk factors are of potential interest for both prevention and treatment of RA. LÄS MER

  3. 2. Spatial heterogeneity and biotic interactions : scaling from experiments to natural systems

    Författare :Ulf Bergström; Göran Englund; Erik Bonsdorff; Sebastian Diehl; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; zooekologi; Animal Ecology;

    Sammanfattning : Much of current ecological theory stems from experimental studies. These studies have often been conducted in closed systems, at spatial scales that are much smaller than the systems of interest. LÄS MER

  4. 3. Temporality and the Semantics of the Biblical Hebrew Verbal System

    Författare :Ulf Bergström; Göran Eidevall; Sören Holst; John A. Cook; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; Biblical Hebrew; semantics; temporality; verb; aspect; tense; progressive; resultative; semiotics; Old Testament Exegesis; Gamla testamentets exegetik;

    Sammanfattning : This dissertation investigates the semantic factors behind the temporal meanings of the Biblical Hebrew (BH) verbal forms. Four different forms are studied, viz. qotel, yiqtol-L, qatal, and yiqtol-S. LÄS MER

  5. 4. Fibre flow mechanisms

    Författare :Roger Bergström; Ulf Björkman; Bo Norman; Mark Martinez; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fibre flow; floc; shear; compression; fibre network; stress chain; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Sammanfattning : The flow behaviour, and primarily the floc-floc interaction, of pulp paper suspensions have been studied visually. Analogy models based on these observations have been developed as well as the identification of important parameters of floc break-up in low shear rate flow fields. LÄS MER

  7. 5. Wear mechanisms in sheet metal forming : Effects of tool microstructure, adhesion and temperature

    Författare :Anders Gåård; Pavel Krakhmalev; Jens Bergström; Ulf Olofsson; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Galling; sheet metal forming; wear; friction; adhesion; temperature; Materialteknik; Materials Engineering;

    Sammanfattning : The general trend in the car body manufacturing industry is towards low-series production and reduction of press lubricants and car weight. The limited use of lubricants, in combination with the introduction of high and ultrahigh-strength sheet materials, continuously increases the demands on the forming tools. LÄS MER