Sökning: "rela"

Visar resultat 21 - 25 av 34 avhandlingar innehållade ordet rela.

  1. 21. Looking for the high-mass progenitors of stripped-envelope supernovae

    Författare :Emir Karamehmetoglu; Jesper Sollerman; Francesco Taddia; Punam Chandra; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Supernova; Supernovae; Stripped-envelope supernovae; SN Type Ibc; SN; SNe; SN progenitor; Type Ibn; Astronomy; astronomi;

    Sammanfattning : Stripped-envelope supernovae were thought to be the explosions of very massive stars (& 20 M) that lost their outer layers of hydrogen and/or helium in strong stellar winds. However, recent studies have highlighted that most stripped-envelope supernovae seem to be arising from rela- tively lower-mass progenitor stars in the 12 20 M(sun) range, creating a mystery about the fate of the higher-mass stars. LÄS MER

  3. 22. Förskolans teknikundervisning: vad och hur?

    Författare :Pernilla Sundqvist; Peter Gustafsson; Tor Nilsson; Lillvist Anne; Jonas Hallström; Mälardalens högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Didactics; didaktik;

    Sammanfattning : The aim of this study was to provide a description of the subject area of tech­nology and the teaching of it in preschool. Three research questions were ad­dressed: 1) What is the content of the subject area of technology in preschool? 2) How do the participants in the study teach technology in preschool? and 3) What aspects of technology does the preschool staff enable the children to learn? The motivation behind the study is the fact that technology is a rela­tively new teaching area in preschool. LÄS MER

  4. 23. Synaptic plasticity in drug abuse disorders : studies of the human post-mortem brain

    Författare :Anna Ökvist; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Drug addiction is a chronic disorder characterized by craving and compulsive drug use despite adverse consequences and high rates of relapse during periods of abstinence. Therapeutic interventions for most addiction disorders are limited today, partly because the underlying neurobiology is still unknown. LÄS MER

  5. 24. Queue mechanisms for differentiation in the Internet

    Författare :Ulf Bodin; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dependable Communication and Computation Systems; Kommunikations- och beräkningssystem;

    Sammanfattning : This thesis addresses loss-rate differentiation in the Internet. Loss-rate differentiation can be offered by tagging packets with different levels of drop precedence. Multiple drop precedence levels can be used to provide relative service levels and to assure forwarding capacity in the Internet. LÄS MER

  7. 25. Socialt kapital - relationer och tillit - för utveckling av kvinnors företagande

    Författare :Maria Bogren; Yvonne von Friedrichs; Anders Söderholm; Mittuniversitetet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; socialt kapital; relationer; tillit; företagande kvinnor; utvecklingsprogram; utvecklingsprojekt;

    Sammanfattning : Kvinnors företag ses som en resurs i regioners och länders utveckling. Tidigare forsk­­­ning har dock visat att kvinnors företag inte växer i lika stor utsträckning som mäns företag. LÄS MER