Recent discoveries in vitamin D research indicate that vitamin D is a necessary component to several organs and tissues that extends beyond bone formation Furthermore, recent research indicates that vitamin D deficiency is rampant across the globe. Historically, anthropological research has focused on the adaptive significance of skin color to...
Despite prevention and treatment, substantial risk for cardiovascular disease(CVD) remains in the population and CVD has been the leading global cause-of-death in past years.While high-density lipoprotein (HDL) markers such as HDL cholesterol (HDL-C) and HDL efflux (a cholesterol-transport-function assay) are associated with decreased risk of CVD, the mechanism of this...
This dissertation contains three essays. In the first essay, "The Role of Connections in Congressional Lawmaking", I investigate the role of connections in congressional lawmaking by studying how legislators' deaths impact their peers' capacity to sponsor and advance bills in the U.S. House of Representatives. I focus on legislators who...
Breast cancer cells acquire many genetic alterations in apoptotic signaling pathways rendering them resistant to apoptosis. Human Epidermal growth factor Receptor-2 (HER-2/ErbB2/neu) is amplified or overexpressed in approximately 30% of breast and ovarian tumors and correlates with poor prognosis. Although HER-2 is an orphan receptor, it forms potent signaling heterodimers...
PilD is an enzyme that processes prepilins that are part of the type II protein secretion apparatus and the type IV piliation machinery. Using a <em>Legionella pneumophila pilDlacZ</em> fusion strain to measure transcription, we observed a 20% increase in beta-galactosidase levels at 30°C vs. 37°C. At 25°C and 17°C vs....
Phylogenetic analysis of HIV is a useful tool in determining factors that may contribute to transmission cluster growth. To better target HIV prevention, it is necessary to understand how research and surveillance data can be combined in a meaningful way.HIV genetic sequences were collected in the RADAR cohort of YMSM...
Recently, much public attention has been focused on racial inequalities in who is subjected to exclusionary school disciplinary policies, and consequently, forced to miss hours of instruction. Over the past two decades, researchers have documented the disparate impacts that zero-tolerance policies have had on students of color, low-income students, and...
Pediatric participants performed a series of trials that involved stepping up onto a raised platform. Body weight load was modulated during this task from -20% to +15% in 5% increments (excluding -5%). Outcome measures include peak hip abduction moments, peak support moments, and individual hip, knee, and ankle percent contributions...
Patients with sickle cell disease (SCD) experience lifelong struggles with both chronic and acute pain, often requiring medical intervention. Pain can be managed with medications, but dosages must balance the goal of pain mitigation against the risks of tolerance, addiction and other adverse effects. Setting appropriate dosages requires knowledge of...
On college campuses, one in five women will experience sexual assault in some capacity over the course of their undergraduate experience. College men in fraternities are three times more likely to commit sexually assaultive acts than non-Greek students. Despite pervasive knowledge that fraternity members are often involved in rape on...