Search for dissertations about: "Daniel Bergh"

Found 5 swedish dissertations containing the words Daniel Bergh.

  1. 1. Computations in the Grothendieck Group of Stacks

    Author : Daniel Bergh; Torsten Ekedahl; David Rydh; Jochen Heinloth; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; matematik; Mathematics;

    Abstract : Given an algebraic group, one may consider the class of its classifying stackin the Grothendieck group of stacks. This is an invariant studied byEkedahl. For certain connected groups, called the special groups bySerre and Grothendieck, the invariant simply gives the inverse of the class ofthe group itself. READ MORE

  2. 2. Destackification and Motivic Classes of Stacks

    Author : Daniel Bergh; David Rydh; Dan Edidin; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Algebraic geometry; Algebraic stacks; Destackification; Grothendieck ring; Motive; Torus; Classifying stack; matematik; Mathematics;

    Abstract : This thesis consists of three articles treating topics in the theory of algebraic stacks. The first two papers deal with motivic invariants. In the first, we show that the class of the classifying stack BPGLn is the inverse of the class of PGLn in the Grothendieck ring of stacks for n ≤ 3. READ MORE

  3. 3. Social Relations and Health : How do the associations vary across contexts and subgroups of individuals?

    Author : Daniel Bergh; Curt Hagquist; Bengt Starrin; Viveca Östberg; Karlstads universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Social Relations; Social Capital; Health; Health Behaviours; School; Adolescents; Sociologi; Sociology;

    Abstract : Objectives: The aim of this thesis is to study the association between social relations and health in different social spheres, and to examine possible interaction effects. Material and Methods: In Paper I, the link between measures of the psychosocial neighbourhood environment, the psychosocial working environment, and psychosomatic health is analyzed by using a subset of data from the survey Life and Health 2000. READ MORE

  4. 4. Bioenergy from Swedish forests : A Study of extraction methods, quality and effects for forest owners

    Author : Daniel Nilsson; Johan Bergh; Peter Lerman; Gudmund Vollbrecht; Nasko Terziew; Linnéuniversitetet; []
    Keywords : AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; LANTBRUKSVETENSKAPER; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; AGRICULTURAL SCIENCES; logging residues; forest fuels; moisture content; needles; nutrients; moisture content measurements; Norway spruce; dry-stacking; fresh-stacking; Forestry and Wood Technology; Skog och träteknik;

    Abstract : The forest constitutes a very important element of renewable natural resources and makes a significant contribution to the Swedish bioeconomy. Biofuels are Sweden’s largest source of energy; of all the energy we use, 32% comes from biofuels, and of this approximately 85% comes from the forest and the forestry sector. READ MORE

  5. 5. Social support in nature-based services for young adults with mental health problems

    Author : Anne Mari Steigen; Bengt G Eriksson; Daniel Bergh; Ragnfrid Eline Kogstad; Anne Marie Støkken; Karlstads universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Nature-based services; young adults; social support; mental health; Socialt arbete; Social Work;

    Abstract : Aim: The overall aim of this thesis is to examine nature-based services for young adults with mental health problems, focusing on the meaning of different dimensions of social support.Methods: The thesis includes four studies that use a variety of data sources and methods: an integrative literature review of nature-based services in the Nordic countries; a quantitative cross-sectional survey of 93 young adults participating in nature-based services in Norway; and qualitative data comprising 20 interviews with nine participants in nature-based services. READ MORE