Search for dissertations about: "NATURAL SCIENCES Biology Organism biology Microbiology"
Showing result 1 - 5 of 31 swedish dissertations containing the words NATURAL SCIENCES Biology Organism biology Microbiology.
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1. Surviving the ratchet : Modelling deleterious mutations in asexual populations
Abstract : One of the most unforgiving processes in nature is that of Muller's ratchet, a seemingly irreversible accumulation of deleterious mutations that all organisms have to deal with or face extinction. The most obvious way to avoid fitness collapse is recombination, though asexual populations usually do not have the luxury of recombining freely. READ MORE
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2. Hematological changes arising from spleen contraction during apnea and altitude in humans
Abstract : .... READ MORE
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3. The human diving response : effects of temperature and training
Abstract : The aim was to elucidate the cardiovascular response associated with breath-hold diving, especially the effects of temperature in its elicitation and the effects of different types of training on the human diving response (DR) and breath-holding time (BHT), and to evaluate the human DR in a mammalian perspective. A model for simulated diving by apnea and facial immersion in cold water was developed. READ MORE
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4. Genetic engineering of Yarrowia lipolytica for the sustainable production of food oils
Abstract : The human population and its demand for food oils is constantly growing. However, increasing food oil production currently requires the deforestation of mostly tropical rainforests to allow the plantation of oil crops. READ MORE
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5. Brain Aromatase in the guppy, Poecilia reticulata : Distribution, control and role in behaviour
Abstract : Oestrogens are produced by aromatisation of androgens by the aromatase enzyme. In the vertebrate brain this synthesis has vital functions in nerve protection, cell proliferation and nerve development during injury respectively brain development. READ MORE