Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 85 for “"Population Studies"”.
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Three Essays on Population Studies
<p>This dissertation comprises three essays on population studies. I begin with a paper that is the first to investigate the short- and long-term effects of a recent change in Chinese divorce laws on married women’s and men’s well-being. The 2011 Chinese divorce reform transfers ownership of the …
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Generative models of brain connectivity for population studies
… to find impairments within a clinical population. Anatomical connectivity is measured via Diffusion Weighted Imaging (DWI), and functional connectivity is assessed using resting-state functional Magnetic Resonance Imaging (fMRI). We first develop a probabilistic model to merge …
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Mercury in hair: Method development and application to population studies.
… In the applications of this analytical method to population studies, the frequency of fish meals, and the age of the subject are positively correlated to the mercury levels in adults' hair (r = 0.539 and 0.513, respectively). Breast-feeding and mercury levels in children's hair are also correlated …
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The genetics of type 1 diabetes: family and population studies
… 11p. I have also performed association studies using other candidate genes. These studies have led to a significant advance in the field of the genetics of type 1 diabetes and bequeath a permanent resource for future research.
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Population Studies in the Ostracode Genus Polytylites From the Chester Series
Made available in DSpace on 2014-12-04T19:14:22Z (GMT). No. of bitstreams: 1 6303302.pdf: 3311110 bytes, checksum: 020feb37371a18057d8125139692220c (MD5) Previous issue date: 1962
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Vertical activity, host preference, and population studies of adult Culicoides (Diptera: Ceratopogonidae)
Automatic-collecting, animal-baited traps were used to investigate the vertical activities and host preferences of Culicoides species in a forest in Giles County, Virginia. Using ropes and pulleys, rabbit and turkey-baited traps were positioned at ground level, 25, and 50 feet elevation in a forest …
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Population studies of the potato leafhopper, Empoasca fabae (Harris), on alfalfa, Medicago sativa L.
… nymph, and adult) were developed to study the population dynamics of this insect. Distribution patterns exhibited by each stage have been used to determine sample unit size and optimum number of samples. The sampling technique was also evaluated in field population studies. The egg sampling …
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Rarity of kidney stones in South Africa's black population : studies of urinary macromolecules, crystal matrix extract containing osteopontin, and bone turnover markers in urine and serum from black and white subjects as a key to understanding this paradox
… kidney stone disease in the South African black population. Healthy, age-matched male subjects from the black and white population groups were recruited for this purpose. In several of the studies, subjects followed a standardized diet and were required to provide 24 hour urine collections. These …
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Host plants of the tobacco flea beetle, Epitrix parvula F.
… into field observations, rearing experiments end population studies. From field observations made throughout the season it was found that this insect fed mostly on the solanaceous plants. especially tobacco. In the spring before the tobacco was transplanted and in the late summer after the …
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Stress Along the Medieval Anglo-Scottish Border? Skeletal Indicators of Conflict-Zone Health
Health changes experienced by populations living in regions of conflict have come to the forefront of research in light of recent increases in socio-political instability in modern populations. Political and ethnic unrest in modern populations have been shown to instigate a decline in the health of …
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Investigating the occupational etiology of prostate cancer in Canadian men
… cancer, including occupation. In epidemiological studies, job titles are generally classified into occupational or more broadly industry groupings. Previous studies have reported inconsistent findings between occupation, industry, and prostate cancer, with weak associations for farming and …
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Bridging the gap between populations and individuals in the philosophy of medicine
The thesis addresses the relationship between populations and individuals in the philosophy of medicine. There is a long-standing tension in the fact that randomised, controlled trials in clinical populations count among the best evidence in medicine, while the goal of medical practice is to help …
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Epidemiology of HIV-1 subtypes among men who have sex with men in Cape Town, South Africa
… communities and between MSM and the heterosexual population. Studies in the early 1990s identified two independent HIV-1 epidemics in Cape Town: a predominantly subtype B epidemic among white MSM and the mainly subtype C epidemic among the predominantly black heterosexual epidemic. While the …
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Resistance to hepatitis C virus : potential genetic and immunological determinants
Studies of highly exposed individuals who remain seronegative (HESN) for HIV infection led to the discovery that homozygosity for the d32 mutation in the CCR5 chemokine receptor gene abrogated viral entry into target cells, and was associated with resistance to infection. In addition, evidence for …
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Aligning heterogenous single cell assay datasets
… of these characteristics cannot be deduced from population studies, and while recent advances in single-cell transcriptomics have led to the development of a number of different single-cell assays, datasets that collect multiple types of assays on the same cells are rare. In this thesis, we …
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Fast learning-based registration of sparse 3D clinical images
… medical image applications such as longitudinal population studies. Most registration algorithms are designed for high-resolution research-quality scans, and under-perform when applied to clinical data. Clinical scans present unique challenges because, in contrast to research-quality scans, …
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Learning Deformable Templates for Brain MRI
… labelled, that represent a typical anatomy for a population. They are commonly used in medical image analysis for population studies and computational anatomy tasks. Practitioners use image alignment techniques to compare the subject scan and the template. Unfortunately, developing a template is a …
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