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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Dna Methylation And Its Association With Prenatal Exposures And Pregnancy Outcomes, Jennifer Straughen
Dna Methylation And Its Association With Prenatal Exposures And Pregnancy Outcomes, Jennifer Straughen
USF Tampa Graduate Theses and Dissertations
Altered DNA methylation may lead to suboptimal fetal programming, increasing the risk of adverse pregnancy outcomes such as small for gestational age (SGA); however, few studies have examined the associations between DNA methylation, prenatal exposures, and fetal outcomes. Cross-sectional data from a larger, ongoing study were used to assess the impact of prenatal smoking on gene specific methylation of umbilical cord blood derived DNA and to investigate the association between gene-specific methylation and risk of SGA. The association between gene-specific DNA methylation and birthweight was also assessed. Maternal and infant covariates were abstracted from medical records, cigarette smoke exposure was …
Evaluation Of Common Inherited Variants In Mitochondrial-Related And Microrna-Related Genes As Novel Risk Factors For Ovarian Cancer, Jennifer Permuth Wey
Evaluation Of Common Inherited Variants In Mitochondrial-Related And Microrna-Related Genes As Novel Risk Factors For Ovarian Cancer, Jennifer Permuth Wey
USF Tampa Graduate Theses and Dissertations
Epithelial ovarian cancer (EOC) is a leading cause of morbidity and mortality among women in the United States, and the etiology is incompletely understood. Common, low penetrant genetic variants such as single nucleotide polymorphisms (SNPs) likely contribute to a significant proportion of EOC. We examined whether SNPs in two understudied yet biologically important types of genes, mitochondrial-related and miRNA-related genes, may contribute to EOC susceptibility using data from a large, homogeneous study population of 1,815 EOC cases and 1,900 controls (frequency-matched on age-group and race/ethnicity) genotyped through stage 1 of an ongoing genome-wide association study. Inter-individual variation in genes involved …
Exploring Evaluation In School Districts: School District Evaluators And Their Practice, Susan Hibbard
Exploring Evaluation In School Districts: School District Evaluators And Their Practice, Susan Hibbard
USF Tampa Graduate Theses and Dissertations
This study explored the evaluation practices of internal evaluators in public school districts in a large southern state. The individuals who conduct evaluations in school districts as internal evaluators were identified and background information was collected. The education and training in evaluation was investigated and the types of evaluations typically conducted by those individuals. Respondents (n = 134) revealed conducting evaluations was a secondary role and part of their main job responsibilities. The types of evaluations carried out and the way in which evaluation was practices were revealed. A descriptive framework of the individuals who conduct evaluations in school districts …
The Role Of Rater Motivation In Personnel Selection Validation Studies, Dan Ispas
The Role Of Rater Motivation In Personnel Selection Validation Studies, Dan Ispas
USF Tampa Graduate Theses and Dissertations
Personnel selection validation studies are routinely conducted in contemporary organizations for selecting and placing employees. Although numerous studies have been conducted with the goal of identifying new predictors, less research was focused on the criterion side. In the current paper, across three studies and five samples, I examined the role played by rater motivation in validation studies. I proposed that rater motivation would impact criterion-related validity of various predictors, the reliability, and the variance of performance ratings. In Study 1, these hypotheses were tested in two samples with varied operationalizations of predictors and of rater motivation. In Study 2, I …
Statistical Learning And Behrens-Fisher Distribution Methods For Heteroscedastic Data In Microarray Analysis, Nabin K. Manandhr-Shrestha
Statistical Learning And Behrens-Fisher Distribution Methods For Heteroscedastic Data In Microarray Analysis, Nabin K. Manandhr-Shrestha
USF Tampa Graduate Theses and Dissertations
The aim of the present study is to identify the di®erentially expressed genes be- tween two di®erent conditions and apply it in predicting the class of new samples using the microarray data. Microarray data analysis poses many challenges to the statis- ticians because of its high dimensionality and small sample size, dubbed as "small n large p problem". Microarray data has been extensively studied by many statisticians and geneticists. Generally, it is said to follow a normal distribution with equal vari- ances in two conditions, but it is not true in general. Since the number of replications is very small, …
Serum Antibodies To Human Papillomavirus Type 6, 11, 16 And 18 And Their Role In The Natural History Of Hpv Infection In Men, Beibei Lu
USF Tampa Graduate Theses and Dissertations
Our understanding of humoral immune response to human papillomavirus (HPV) infection has been mainly derived from studies in women. Very little is known about humoral immune response to HPV in men. There is also a growing interest in understanding the burden of HPV exposure in the subgroups of the male population, including men who have sex with women (MSW), men who have sex with men (MSM) and men who have sex with both men and women (MSMW). This dissertation was undertaken to understand and characterize humoral immune response, measured by detectable serum antibody IgG, to HPV 6, 11, 16 and …