Search for dissertations about: "Sven Janson"

Found 4 swedish dissertations containing the words Sven Janson.

  2. 1. Cell structure and localisation of nitrogenase in some marine and brackish cyanobacteria

    Author : Sven Janson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Brackvatten; Cyanobakterier;

    Abstract : .... READ MORE

  4. 2. Generalized Pólya Urns via Stochastic Approximation

    Author : Henrik Renlund; Sven Erick Alm; Svante Janson; Lars Holst; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; stochastic approximation; unstable equilibrium; stable equilibrium; touchpoint; generalized pólya urns; MATHEMATICS; MATEMATIK; Mathematics; Matematik;

    Abstract : .... READ MORE

  5. 3. Recursive Methods in Urn Models and First-Passage Percolation

    Author : Henrik Renlund; Sven Erick Alm; Svante Janson; John Wierman; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; stochastic approximation algorithm; generalized Polya urn; limit theorem; first-passage percolation; rate of percolation; time constant; Mathematical statistics; Matematisk statistik; Mathematical Statistics; Matematisk statistik;

    Abstract : This PhD thesis consists of a summary and four papers which deal with stochastic approximation algorithms and first-passage percolation. Paper I deals with the a.s. limiting properties of bounded stochastic approximation algorithms in relation to the equilibrium points of the drift function. READ MORE

  6. 4. Childhood obesity: early intervention and web-based treatment

    Author : Annelie Thorén; Sven-Arne Silfverdal; Annika Janson; Margareta Persson; Olof Sandström; Stefan Särnblad; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; weight gain; body mass index; BMI; childhood obesity; treatment; intervention; pediatrik; Pediatrics;

    Abstract : Childhood obesity is a threat to public health worldwide. In Sweden around 15% of children 5-19 years of age are overweight and 3-4 % have obesity. Early prevention is crucial as are effective treatments for children and adolescents who have already developed obesity. READ MORE