Avancerad sökning

Hittade 4 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Neutral and Adaptive Processes Shaping Genetic Variation in Spruce Species

    Författare :Michael Stocks; Martin Lascoux; Renaud Vitalis; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; spruce; population genetics; adaptation; evolution; picea; approximate bayesian computation; cline;

    Sammanfattning : Population genetic analyses can provide information about both neutral and selective evolutionary processes shaping genetic variation. In this thesis, extensive population genetic methods were used to make inferences about genetic drift and selection in spruce species. LÄS MER

  3. 2. Dynamic Modelling of Communicable and Non-Communicable Diseases

    Författare :Theresa Stocks; Michael Höhle; Tom Britton; Niel Hens; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis consists of two papers dealing with the stochastic dynamic modelling of one communicable and one non-communicable disease respectively. In the first paper we derive a patient- and organ-specific measure for the estimated negative side effects of radiotherapy using a stochastic logistic birth-death process. LÄS MER

  4. 3. Stochastic dynamic modelling and statistical analysis of infectious disease spread and cancer treatment

    Författare :Theresa Stocks; Tom Britton; Michael Höhle; Daniela De Angelis; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematical modelling; infectious disease spread; cancer treatment; statistical inference; population dynamics; birth-death process; partially observed Markov process; Mathematical Statistics; matematisk statistik;

    Sammanfattning : Mathematical models have proven valuable for public health decision makers as they can provide insights into the understanding, control and, ultimately, the prevention of diseases. This thesis contains four manuscripts dealing with stochastic dynamic modelling and statistical analysis of infectious disease spread and optimization of cancer treatment. LÄS MER

  5. 4. Human Abuses of Coral Reefs- Adaptive Responses and Regime Transitions

    Författare :Ingrid Nordemar; Nils Kautsky; Michael Tedengren; Hans Kautsky; Alina Szmant; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Coral Reefs; Disturbance; Stress; Adaptive responses; Macroalgae; Ecosystem regimes; Resilience; Competition; Traits; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Sammanfattning : During the last few decades, coral reefs have become a disappearing feature of tropical marine environments, and those reefs that do remain are severely threatened. It is understood that humans have greately altered the environment under which these ecosystems previously have thrived and evoloved. LÄS MER