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Jackknife Empirical Likelihood Inference For The Pietra Ratio, Yueju Su

Mathematics Theses

Pietra ratio (Pietra index), also known as Robin Hood index, Schutz coefficient (Ricci-Schutz index) or half the relative mean deviation, is a good measure of statistical heterogeneity in the context of positive-valued data sets. In this thesis, two novel methods namely "adjusted jackknife empirical likelihood" and "extended jackknife empirical likelihood" are developed from the jackknife empirical likelihood method to obtain interval estimation of the Pietra ratio of a population. The performance of the two novel methods are compared with the jackknife empirical likelihood method, the normal approximation method and two bootstrap methods (the percentile bootstrap method and the bias corrected …

The Effects Of Visual Color Stimuli On Zebra Finch Behavior And Stress Response, Bao Chau Ly

Biology Honors Theses

The Australian Zebra Finch, Taeniopygia guttata, is a common vertebrate model for understanding behavioral, neurological, and physiological changes across the life span. The goal of this study was to determine if color in the environment can act as a stimulus and activate the zebra finch stress response. Zebra finches are diurnal and have color vision. Their plumage coloration is sexually dimorphic and they show behavioral changes to color; females prefer males with redder beaks, and both sexes show individual color preferences for materials in nest building. This experiment was conducted to test whether or not a novel color in the …

Traffic-Related Pollution Exposure Assessment Of Fulton County And Atlanta Public Schools (K-12) In Proximity To Major Highways And Expressways, David Carter

Public Health Theses

ABSTRACT

ROSS CARTER

Traffic-related Pollution Exposure Assessment of Fulton County and Atlanta Public Schools (K-12) in Proximity to Major Highways and Expressways

Background: A number of studies have linked traffic-related pollutant exposures to asthma in children. Health conditions such as asthma can contribute to school absenteeism and missed learning opportunities as well as place a major burden on health resources. Although children spend a significant amount of time in school, few states have adopted school siting policies that prevent the placement of schools near major highways. Furthermore, schools often fail to take appropriate steps (e.g. adequate HVAC and air filters) …

An Examination Of The Differences In Risk Factors And Their Association With Variations In Hiv Prevalence Between Cameroon, Coted'ivoire, And Senegal, Lea Accalogoun

Public Health Theses

ABSTRACT

An Examination of the Differences in Risk Factors and their Association with Variations in HIV Prevalence between Cameroon, Cote d’Ivoire, and Senegal

(Under the direction of RICHARD ROTHENBERG, M.D., M.P.H. FACULTY

MEMBER)

Background: Extensive evidence suggests there are large variations in the prevalence of HIV infection among Sub-Saharan African countries. Some studies associated these variations in HIV prevalence to differences in the rate of HIV spread while others attributed the variations to risky sexual behaviors. The purpose of this study was to examine differences in risk factors for HIV infection between Cameroon, Cote d’Ivoire, and Senegal, to determine …

Cephalopod Ink: Production, Chemistry, Functions And Applications, Charles D. Derby

Biology Faculty Publications

One of the most distinctive and defining features of coleoid cephalopods—squid, cuttlefish and octopus—is their inking behavior. Their ink, which is blackened by melanin, but also contains other constituents, has been used by humans in various ways for millennia. This review summarizes our current knowledge of cephalopod ink. Topics include: (1) the production of ink, including the functional organization of the ink sac and funnel organ that produce it; (2) the chemical components of ink, with a focus on the best known of these—melanin and the biochemical pathways involved in its production; (3) the neuroecology of the use of ink …

Workplace Social Capital And Mental Health Among Chinese Employees: A Multi-Level, Cross-Sectional Study, Junling Gao, Scott Weaver, Jumming Dai, Yingnan Jia, Xingdi Liu, Kezhi Jin, Hua Fu

Public Health Faculty Publications

Background: Whereas the majority of previous research on social capital and health has been on residential neighborhoods and communities, the evidence remains sparse on workplace social capital. To address this gap in the literature, we examined the association between workplace social capital and health status among Chinese employees in a large, multilevel, cross-sectional study. Methods: By employing a two-stage stratified random sampling procedure, 2,796 employees were identified from 35 workplaces in Shanghai during March to November 2012. Workplace social capital was assessed using a validated and psychometrically tested eight-item measure, and the Chinese language version of the WHO-Five Well-Being Index …