Social and Behavioral Sciences Commons^™

Feeling The Heat? Substantial Variation In Temperatures Does Not Affect The Proportion Of Males Born In Australia, Barnaby J. Dixson, John Haywood, Philip J. Lester, Diane K. Ormsby

Human Biology Open Access Pre-Prints

The global proportion of male births has been shown to vary with climate, with a higher proportion of male births documented in colder climates. Here we examined the hypothesis that ambient temperature predicts fluctuations in the proportion of male births in Australia and within seven Australian states using historical annual data spanning 1910-2009. We predicted that within states with tropical ambient temperatures the proportion of male births would decrease when ambient temperatures are higher. Considering the national composite births for the whole of Australia first, the proportion of males born ranged only from 0.510 to 0.517. We observed no relationship …

Stress And Social Relationships: The Role Of Corticosterone In The Formation And Maintenance Of Pair Bonds In The Monogamous Zebra Finch (Taeniopygia Guttata), Kimberly Anne Laplante

Wayne State University Dissertations

Stress and affiliative social relationships are bi-directionally related. It is well understood that social relationships can buffer the physiological response to a stressor. Conversely, there is some evidence to suggest that stress can affect the propensity to form a pair bond. Data from humans and prairie voles, monogamous rodents, suggest that activation of the hypothalamic-pituitary-adrenal axis (HPA) in males increases attraction for females. Across species, females are understudied, but evidence from the prairie vole suggests HPA activation impairs formation of partner preference, the first step in establishing a pair bond. Across taxa there is evidence that formation and maintenance of …

Stress And Substance Abuse In Homeless And Matched Housed Adolescents: A Longitudinal Model, Corissa Carlson

Wayne State University Theses

The relationship between stress and substance abuse within an at-risk adolescent population is an important topic to research. There are several models examining the relationship between stress and substance abuse; however, this study will look to longitudinal methods to examine if there is a temporal relationship between stress and substance abuse in a high risk population. Interviews were conducted at a baseline time point as well as follow-up time points at two, five, and seven years. Two hundred fifty-four participants were retained at the two year follow-up and their data were analyzed using structural equation modeling. The two proposed models …

Socioeconomic Differences In Body Mass Index, Neighborhood Satisfaction, Stress, And Perceived Racism Among African Americans In Metropolitan Detroit, Corey Zolondek

Wayne State University Dissertations

This exploratory study tested the research hypothesis that among African Americans in Metropolitan Detroit, neighborhood satisfaction, stress and perception of racism influence obesity differently based on income. The three expected results for the data were as follows: income does not have a link to obesity; links between BMI and the study variables (neighborhood satisfaction, stress, and perceived racism) vary according to income category; and the study variables (neighborhood satisfaction, stress, and perceived racism) influence the variability of BMI differently according to income category. The results indicate that there are no income differences in how the study variables influence obesity. Therefore, …

Social Support, Parent-Child Communication And Reactions To Pediatric Cancer Medical Procedures, Amy Marie Peterson

Wayne State University Dissertations

The purpose of this study was to investigate the relationships between social support, parent-child communication during pediatric cancer treatment-related medical procedures, and parent and child reactions to these procedures.

Cancer is the leading cause of disease-related death in children (ACS, 2012) and children and their parents both report that cancer-related medical procedures are worse than the disease itself (Hedstrom et al., 2003). Social support may serve as a buffer against parent and child negative responses to treatment.

One hundred and fifteen families were included in the analysis from two pediatric oncology treatment centers. Self-report questionnaire data and observational coding of …