Search for dissertations about: "ulf bergström"

Showing result 1 - 5 of 9 swedish dissertations containing the words ulf bergström.

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

    Author : Ulf Bergström; Internmedicin - epidemiologi; []

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

  4. 4. Fibre flow mechanisms

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

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE