Sökning: "Stefan"

Visar resultat 11 - 15 av 1396 avhandlingar innehållade ordet Stefan.

  1. 11. Spontaneous online tutoring : Students’ support of their own and other students’ process of inquiry in online text-based tutoring

    Författare :Malin Jansson; Stefan Hrastinski; Stefan Stenbom; Fredrik Enoksson; Jennifer Richardson; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Teknik och lärande; Technology and Learning;

    Sammanfattning : The use of online technologies has made education more accessible. In online education, there are increased expectations for students to be self-directed and take responsibility for their learning. Research has also shown that students can benefit from learning from each other. LÄS MER

  3. 12. Lipase and ω-Transaminase : Biocatalytic Investigations

    Författare :Maria Svedendahl; Per Berglund; Stefan Stefan Lutz; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Candida antarctica lipase B; enzyme catalysis; enzyme catalytic promiscuity; molecular modeling; ω-transaminase; Biochemistry; Biokemi;

    Sammanfattning : In a lipase investigation, Candida antarctica lipase B (CALB) are explored for enzyme catalytic promiscuity. Enzyme catalytic promiscuity is shown by enzymes catalyzing alternative catalytic transformations proceeding via different transition state structures than normal. LÄS MER

  4. 13. Theoretical Studies of Hadronic Reactions with Vector Mesons

    Författare :Carla Terschlüsen; Stefan Leupold; Stefan Scherer; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hadron physics; Vector mesons; Effective field theories; Chiral Lagrangian; Meson-meson interactionss; Physics with specialization in Nuclear Physics; Fysik med inriktning mot kärnfysik;

    Sammanfattning : Aiming at a systematic inclusion of pseudoscalar and vector mesons as active degrees of freedom in an effective Lagrangian, studies have been performed in this thesis concerning the foundations of such an effective Lagrangian as well as tree-level and beyond-tree-level calculations. Hereby, vector mesons are described by antisymmetric tensor fields. LÄS MER

  5. 14. Experiments and Modelling of Composite–Aluminium Bolted Joints

    Författare :Hannes Wemming; Zlatan Kapidžić; Stefan B Lindström; Lars Johansson; Stefan Hallström; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The aeronautical industry has always strived towards weight-efficient structures since they improve aircraft performance, enable more fuel or payload, reduce cost of manufacturing and operating the aircraft, and reduce the fuel consumption and emissions. Modern airframes are often built in materials with high strength-toweight and stiffness-to-weight ratio, such as aluminium or fibre composites. LÄS MER

  7. 15. Nödvändighetens väg : Världsbildande gränsarbete i skildringar av informationssamhället

    Författare :Stefan Karlsson; Gerd Lindgren; Göran Sundqvist; Karlstads universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Ideology; Boundary Work; World View; Information Society; Technocracy; Sociology; Sociologi; Sociologi; Sociology;

    Sammanfattning : This dissertation aims at describing the worldview and the ontological boundary work that descriptions of ”the information society” presuppose as well as understanding how these relate to technocratic descriptions of the world. The theoretical point of origin of this work is that worldviews are communicated, and that when this transpires, three worlds are related to (the objective, the social, and the subjective) which contain ideological components that make them plausible. LÄS MER