Search for dissertations about: "Meta-analyses"

Showing result 1 - 5 of 62 swedish dissertations containing the word Meta-analyses.

  2. 1. Can the ego be depleted? : Attempts to replicate the ego depletion effect and integrate its explanations

    Author : Junhua Dang; Institutionen för psykologi; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Self-control; Ego depletion; Pre-registration; Meta-analyses; Goal maintenance; Competition resolution;

    Abstract : Although self-control is so important that no one from any corner of the world would dispute, it is often difficult and vulnerable. Continuous exertion is one of the most influential factors that are detrimental to self-control, which leads to a state called “ego depletion”. READ MORE

  4. 2. Effect of antihypertensive treatment at different blood pressure levels

    Author : Mattias Brunström; Bo Carlberg; Mats Eliasson; Sverre Kjeldsen; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; blood pressure; hypertension; antihypertensive treatment; cardiovascular disease; randomized controlled trial; systematic review; meta-analysis; standardization;

    Abstract : BackgroundHigh blood pressure is associated with an increased risk of cardiovascular disease and premature death. The shape of association between blood pressure and the risk of cardiovascular events is debated. Some researchers suggest that the association is linear or log-linear, whereas others suggest it is J-shaped. READ MORE

  5. 3. The importance of search behavior and movements for spatial distributions of herbivorous insects

    Author : Petter Andersson; Peter Hambäck; Johan Ehrlén; Tomas Roslin; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Olfactory search; Habitat heterogeneity; Species-traits; Immigration; Scaling relationships; Patch size; Plant-insect interactions; EAG; Odors; Pheromones; Plant Ecology; växtekologi;

    Abstract : Insect populations commonly show large spatial variation in density, and much variation have been shown to be explained by the search behavior applied by the insect when locating habitat patches. This thesis explores the importance of odor-mediated attraction for immigration rates of herbivorous insects in relation to the size of the patches and the density of host plants within the patches. READ MORE

  6. 4. Bottlenecks and blowflies : Speciation, reproduction and morphological variation in Lucilia

    Author : Ann-Britt Florin; Lisa Meffert; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Population size; speciation; Lucilia sericata; morphological variation; Lucilia illustris; bottlenecks; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; Animal Ecology; zooekologi;

    Abstract : This thesis attempts to improve our understanding of the role of population size for the process of speciation. First, the effect of population size on speciation is studied using several meta-analyses of published laboratory experiments. READ MORE

  7. 5. Novel methods for dose-response meta-analysis

    Author : Alessio Crippa; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Dose–response meta-analysis is a statistical procedure for combining and contrasting the evidence on the association between a continuous exposure and the risk of a health outcome. Different papers refined selected aspects of the methodology, such as implementation of flexible strategies and extensions to multivariate meta-analysis. READ MORE