Search for dissertations about: "selection mechanisms"

Showing result 16 - 20 of 415 swedish dissertations containing the words selection mechanisms.

  2. 16. THE INVISIBLE FOOT : Survival of New Art Ideas on the Swedish Art Arena - An Autoethnographic Study of nonTVTVstation

    Author : Mikael Scherdin; Ivo Zander; Pierre Guillet de Monthoux; Uppsala universitet; []
    Keywords : Business studies; Invisible Foot; Autoethnography; Avant-Garde art; Population Ecology; Selection Mechanisms; Entrepreneurship; Unique Ideas – Revolutionary Ideas; Företagsekonomi; Business Studies; företagsekonomi;

    Abstract : This thesis is an autoethnographic case study of an avant-garde art project – nonTVTVstation - which achieved broad international success but met several difficulties on the Swedish art arena and eventually ceased operations after 10 years. The puzzle the thesis addresses is: Why did the nonTVTVstation, despite its international success, constantly run into trouble in Sweden and eventually fail to survive as a new art concept? The difficulties associated with the local structures represented an “Invisible Foot”, constantly but in seemingly complex ways upsetting our plans; but the nature and details of this Invisible Foot remained hidden during the years of operation. READ MORE

  4. 17. Mechanisms of Antibiotic Resistance Evolution

    Author : Michael Knopp; Dan Andersson; Anca Segall; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Antibiotic resistance evolution; Escherichia coli; Salmonella; porins; fitness; epistasis; strain-specificity; sub-MIC; de novo gene evolution;

    Abstract : The continuing emergence and spread of antibiotic resistant bacteria are a threat to various applications in modern medicine and impose a strong economic burden on health systems. The development of new antibiotics is slow and cannot counterbalance the dissemination of resistant bacteria. READ MORE

  5. 18. The CD40 Receptor - Target,Tool and Technology

    Author : Peter Ellmark; Institutionen för immunteknologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; serology; transplantation; Immunologi; serologi; SPIRE; mammalian; library; cDNA; selection; receptor revision; phage display; scFv; human; CD40; antibodies;

    Abstract : CD40 is a cell surface receptor of pivotal importance that is expressed on several of the cells in the immune system. It is critical for many important events, such as T cell dependent B cell activation, isotype switching, somatic mutation and generation of B cell memory. READ MORE

  6. 19. The link between brain size, cognitive ability, mate choice and sexual behaviour in the guppy (Poecilia reticulata)

    Author : Alberto Corral López; Niclas Kolm; Janette Boughman; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; sexual selection; artificial selection; brain evolution; optomotor test; decision-making; discrimination; assessment; optimal decisions; rational choice; behavioural flexibility; expensive tissue; predation; sex ratio; OSR; maintenance of variation; etologi; Ethology;

    Abstract : Competition over access for mates has led to the evolution of many striking examples of morphological traits and behaviour in animals. The rapid development of the sexual selection field in recent decades have dramatically advanced our understanding of what traits make individuals more successful in attracting mates and how preferences for mates evolve over time. READ MORE

  7. 20. Life and death of human B cells in health and disease

    Author : Andy Dernstedt; Mattias N. E. Forsell; Clas Ahlm; Jonas Klingström; Mats Bemark; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; b cells; antibody; hantavirus; germinal centre; phagocytosis; selection; DAF; vaccination; rituximab;

    Abstract : B cells provide one of the key mechanisms of immunological memory, which is theproduction of neutralising antibodies. How B cells respond to infections and vaccinationgives clues to how the development of the immunological memory is facilitated, and canthus lead to a deeper understanding of why the immune system sometimesmalfunctions. READ MORE