Sökning: "Jan Karlsson"

Visar resultat 21 - 25 av 92 avhandlingar innehållade orden Jan Karlsson.

1. 21. Catalysts for Oxygen Production and Utilization : Closing the Oxygen Cycle: From Biomimetic Oxidation to Artificial Photosynthesis

   Författare :Erik Karlsson; Jan-Erling Bäckvall; Björn Åkermark; Jerker Mårtensson; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; oxygen; catalytic oxidation; biomimetic oxidation; artificial photosynthesis; water oxidation; DFT calculations; Organic chemistry; Organisk kemi; organisk kemi; Organic Chemistry;

   Sammanfattning : This thesis describes the development and study of catalysts for redox reactions, which either utilize oxygen or hydrogen peroxide for the purpose of selectively oxidizing organic substrates, or produce oxygen as the necessary byproduct in the production of hydrogen by artificial photosynthesis.The first chapter gives a general introduction about the use of environmentally friendly oxidants in the field of organic synthesis, and about the field of artificial photosynthesis. LÄS MER

3. 22. Legitimacy and comprehensibility of work-related assessments and official decisions within the sickness insurance system

   Författare :Elin Karlsson; Christian Ståhl; Jan Sandqvist; Ida Seing; Ben Baumberg Geiger; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Sammanfattning : The aim of this thesis was to contribute to the development of empirical and theoretical knowledge about the legitimacy and comprehensibility of assessment- and decision-making processes within the sickness insurance system from a client perspective. The focus has been on interactions between clients and other stakeholders within the system, and the extent to which the clients understood and accepted the procedures. LÄS MER

4. 23. Att leda i kommunal äldreomsorg : Om arbetsledares handlingsutrymme, handlingsfrihet och skilda lojaliteter - exemplet Halland

   Författare :Ingrid Karlsson; Jan Petersson; Per Albinsson; Cecilia Henning; Växjö universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; ledarskap; första linjens chef; vinjettstudie; top down; top up; konflikter; dilemman; äldreomsorg; handlingsutrymme; handlingsfrihet; lojalitet; sorti; organisationskultur; institutionalisering; formella och informella regler; Social work; Socialt arbete; Socialt arbete; Social Work;

   Sammanfattning : The middle management position in the care of the elderly is the focus of this licentiate dissertation. The aim was to develop knowledge about the constraints within which the middle manager is able to act and which freedom of action he/she has. LÄS MER

5. 24. Abdominal Aortic Wall Mechanics - Stress, Strain and Stiffness in A Medical Perspective : An Experimental Study in Man

   Författare :Jerker Karlsson; Jan Engvall; Toste Länne; Jonas Stålhand; Carl-Johan Carlhäll; Magnus Cinthio; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Sammanfattning : Background:  The stiffness of the abdominal aorta is considered a significant factor affecting the morbidity and mortality of cardiovascular disease. Estimating vascular stiffness is an integral part in cardiovascular risk assessment. LÄS MER

7. 25. Spill : Om djur, hantverk och nätverk i Mälarområdet under vikingatid och medeltid

   Författare :Johnny Karlsson; Jan Storå; Anders Andrén; Mats Roslund; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Craft; Osseous; Antler; Horn; Bone; Teeth; Walrus tusk; Elk; Red deer; Reindeer; Networks; Trade; Exchange; Birka; Sigtuna; Uppsala; Strängnäs; Nyköping; Viking; Medieval; Social Agency; Economic Agency; Archaeological Science; laborativ arkeologi;

   Sammanfattning : This thesis examines the use of various osseous raw materials in craft activities in the Mälaren region during the Middle Ages. Places studied are: Birka, Sigtuna, Nyköping, Strängnäs and Uppsala. The aim is to capture both chronological and spatial changes in the use of osseous raw materials. LÄS MER