Search for dissertations about: "Substitution effects"
Showing result 16 - 20 of 206 swedish dissertations containing the words Substitution effects.
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16. The Effects of Mutation and Selection on the Rate and Pattern of Molecular Evolution in Birds
Abstract : By comparing sequence diversity and divergence on sex chromosomes one can study how the rate of evolution in affected by mutation and/or selection. The rate of mutation in male biased, meaning that relatively more mutations are created in the male germ line than in the female. READ MORE
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17. Computer-Assisted Organic Synthesis. Addition to Carbonyl Carbons and Aromatic Substitution
Abstract : This thesis concerns the computer-assisted modelling of additions to ketones and aromatic substitution, and how this modelling can be used within an existing program for synthesis planning. I include a review of existing computer-assisted organic synthesis (CAOS) programs, and discuss how some of these programs deal with knowledge representation. READ MORE
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18. Liver tumour promoting effects by polychlorinated biphenyls
Abstract : PCBs cause a number of toxic effects and are present in a variety of biological samples including fish, meat and diary products. Cancer is a serious toxic effect by PCBs that has been observed in animal experiments but the knowledge about PCB induced carcinogenicity is still scarce. READ MORE
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19. Apolipoprotein E and Alzheimer's diseases : signals and effects
Abstract : Alzheimer's Disease (AD) is the most frequent cause of dementia in the elderly. A diagnosis of AD is confirmed post-mortem by the accumulation of neuritic plaques (NP) and neurofibrillary tangles (NFTs) in brain tissue. READ MORE
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20. 1.Incentive and spill-over effects of supplementary sickness compensation, 2. Substitution between temporary parental leave and sickness absence - Effects of an experiment with increased monitoring
Abstract : .... READ MORE