Sökning: "Björn Persson"

Visar resultat 6 - 10 av 18 avhandlingar innehållade orden Björn Persson.

1. 6. Economic evaluation, value of life, stated preference methodology and determinants of risks

   Författare :Björn Sund; Lars Hultkrantz; Ulf Persson; Örebro universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Cost-benefit analysis; value of a statistical life; contingent valuation; cardiac arrest; defibrillation; calibration; sensitivity to scope; risk communication; response times; incident experience; risk perception.; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Economics; Nationalekonomi; Economics; Nationalekonomi;

   Sammanfattning : The first paper examines the value of a statistical life (VSL) for out-of-hospital cardiac arrest (OHCA) victims. We found VSL values to be higher for OHCA victims than for people who die in road traffic accidents and a lower-bound estimate of VSL for OHCA would be in the range of 20 to 30 million Swedish crowns (SEK). LÄS MER

3. 7. Lärartillvaro och historieundervisning : innebörder av ett nytt uppdrag i de mätbara resultatens tid

   Författare :Anders Persson; Monika Vinterek; Björn Åstrand; Carina Rönnqvist; Arja Virta; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; History; History teacher; History didactics; Existential philosophy; Primary school; Lived experience; Martin Heidegger; Hanna Arendt; Curriculum change; Performativity; Historia; Lärare; Historiedidaktik; Existensfilosofi; Existentialisation; Mellanstadiet; Årskurs 4-6; Läroplan; Skolreform; Lgr 11; Gert Biesta; Jonas Aspelin; historia med utbildningsvetenskaplig inriktning; history of education; Utbildning och lärande;

   Sammanfattning : Swedish compulsory school has recently been subjected to a number of political reforms. Between 2011 and 2014, for example, earlier grades, more national tests and a new curriculum plan (Lgr 11) were to be implemented. This thesis aims to examine those changes as they were experienced by teachers who teach history in Swedish upper primary schools. LÄS MER

4. 8. Amphiphilic Molecules in Aqueous Solution

   Författare :Gerd Persson; Göran Lindblom; Håkan Edlund; Björn Lindman; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; liquid crystal; phase diagrams; counterions; alkylpyridinium octanesulfonates; 1-monooleoyl-rac-glycerol; n-octyl-β-D-glucoside; cubic phases; Fysikalisk kemi; Physical chemistry; Fysikalisk kemi; Physical Chemistry; fysikalisk kemi;

   Sammanfattning : The aim of this thesis was to investigate amphiphilic molecules in aqueous solution. The work was divided into two parts. In the first part the effects of different counterions on phase behavior was investigated, while the second part concerns the 1-monooleoyl-rac-glycerol (MO)/n-octyl-β-D-glucoside (OG)/2H2O-system. LÄS MER

5. 9. Tilting trains : Enhanced benefits and strategies for less motion sickness

   Författare :Rickard Persson; Mats Berg; Björn Kufver; Simon Iwnicki; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tilting trains; running time; ride comfort; motion sickness; tilt control; Vehicle engineering; Farkostteknik; Järnvägsgruppen - Gröna tåget; Järnvägsgruppen - Gröna tåget;

   Sammanfattning : Carbody tilting is today a mature and inexpensive technology that allows higher train speeds in horizontal curves, thus shortening travel time. This doctoral thesis considers several subjects important for improving the competitiveness of tilting trains compared to non-tilting ones. LÄS MER

7. 10. Production scheduling and shipment planning at oil refineries : optimization based methods

   Författare :Jan A. Persson; Bjørn Nygreen; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : In the oil refinery industry, companies need to have a high utilization of production, storage, and transportation resources to be competitive. This can only be achieved by proper planning The purpose of this thesis is to contribute to the development of optimization models and solution methods that support the scheduling and planning at refinery companies. LÄS MER