Search for dissertations about: "Magnus Johansson"

Showing result 21 - 25 of 80 swedish dissertations containing the words Magnus Johansson.

  2. 21. Smart, Fast and Beautiful : On Rhetoric of Technology and Computing Discourse in Sweden 1955-1995

    Author : Magnus Johansson; Linköpings universitet; []
    Keywords : rhetoric of technology; computing history; technological discourse; technological frame; actor network; STS; social construction; computerisation; information technology; computer science; government policy; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Abstract : Ever since the computer was introduced some 50 years ago, its role in society has been increasing. From being a tool for scientists and technicians, the computer has become a concern for everyone. Different actors engaged in introducing — or denouncing — this technology, have used many strong words for winning others to the cause. READ MORE

  4. 22. Synthesis and Applications of P-chirogenic Phosphine Boranes

    Author : Magnus Johansson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cytisine; gold I catalysis lipase; P-chirogenic; desymmetrization; phosphine; enantioselective cyclopropanation. enantioselective deprotonation; chirality; asymmetric synthesis; borane;

    Abstract : AbstractThis thesis reports the independent synthesis of both enantiomers of P-chirogenic phosphine ligands and the building blocks thereof, which are suitable for parallel synthesis efforts and for the generation of more diverse libraries of P-chirogenic compound. The use of P-chirogenic phosphine boranes in transition metal-catalyzed reactions, such as palladium-catalyzed allylic alkylation and amination, is also described. READ MORE

  5. 23. Diagnosis of interatrial shunts and the influence of patent foramen ovale on oxygen desaturation in obstructive sleep apnea

    Author : Magnus C Johansson; Göteborgs universitet; []
    Keywords : Patent foramen ovale; atrial septal defect; obstructive sleep apnea; contrast transesophageal echocardiography; percutaneous closure;

    Abstract : Patent foramen ovale (PFO) is found in 27% of the population and although mostly asymptomatic, PFO has been associated with e.g. cryptogenic stroke and, rarely, also with oxygen desaturation. PFO and atrial septal defects may nowadays be closed percutaneously without open heart surgery. READ MORE

  6. 24. Family Matters : Essays on Family Firms and Employment Protection

    Author : Carl Magnus Bjuggren; Hans Sjögren; Dan Johansson; Bo Sjö; Andrea Colli; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Family firms; employment protection; firm dynamics; high-growth firms; Familjeföretag; anställningsskydd; företagsdynamik; snabbväxande företag;

    Abstract : This thesis is a study of firm dynamics, family ownership, and employment protection. It addresses the implications of employment protection on firm productivity and how family owned firms react differently with regard to economic shocks. It also investigates whether family ownership matters for the probability of exhibiting high growth. READ MORE

  7. 25. Controlling the Pore Size and Morphology of Mesoporous Silica

    Author : Emma M. Johansson; Magnus Odén; José M. Cordoba; Niklas Hedin; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : Mesoporous silica with a hexagonally ordered pore structure (SBA-15) has been synthesized. Through variations in the synthesis conditions several morphologies, such as fibers, sheets and separate rods, have been realized. READ MORE