Sökning: "robert pettersson"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden robert pettersson.

  1. 1. Human Postures and Movements analysed through Constrained Optimization

    Författare :Robert Pettersson; Anders Eriksson; Elena Gutierrez-Farewik; Hans Berg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multibody system; optimal control; trajectory optimization; long jump; posture; Other engineering mechanics; Övrig teknisk mekanik;

    Sammanfattning : Constrained optimization is used to derive human postures and movements. In the first study a static 3D model with 30 muscle groups is used to analyse postures. The activation levels of these muscles are minimized in order to represent the individual's choice of posture. LÄS MER

  3. 2. Sami tourism in Northern Sweden : Supply, demand and interaction

    Författare :Robert Pettersson; Ulf Wiberg; Dieter K Müller; Bruno Jansson; Thomas Hinch; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social and economic geography; Indigenous Tourism; Sami; Sápmi; Tourism Supply; Tourism Demand; Stated Preference; Attitudes; Kulturgeografi; Human geography; Kulturgeografi; Social and Economic Geography; kulturgeografi; Human geography; economic geography;

    Sammanfattning : Indigenous tourism is an expansive sector in the growing tourism industry. The Sami people living in Sápmi in northern Europe have started to engage in tourism, particularly in view of the rationalised and modernised methods of reindeer herding. Sami tourism offers job opportunities and enables the spreading of information. LÄS MER

  4. 3. Sami tourism - supply and demand : two essays on indigenous peoples and tourism in Sweden

    Författare :Robert Pettersson; Mittuniversitetet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Human geography; economic geography; Kulturgeografi; ekonomisk geografi;

    Sammanfattning : .... LÄS MER

  5. 4. Influence of serotonin on anxiety-like behavior in rat

    Författare :Robert Pettersson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anxiety; Serotonin; SSRI;

    Sammanfattning : It is well-established that serotonin is involved in the regulation of mood and behaviour, partly implied by the therapeutic effect of prolonged treatment with selective serotonin reuptake inhibitors (SSRI) on mood and anxiety disorders. However, the mechanisms behind the paradoxical exacerbation of anxiety described during initial treatment, as well as behind the therapeutic effects of prolonged treatment with SSRIs, remain poorly understood. LÄS MER

  7. 5. Simulation of Human Movements through Optimization

    Författare :Robert Pettersson; Anders Eriksson; Elena Gutierrez-Farewik; Arne Nordmark; Anders Klarbring; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multibody system; human movements; optimal control; trajectory optimization; long jump; posture; rowing; somersault;

    Sammanfattning : Optimization has been used to simulate human neural control and resulting movement patterns. The short term aim was to develop the methodology required for solving the movement optimization problem often arising when modelling human movements. LÄS MER