The set of experiments described here test the hypothesis that the declarative memory system supported by the medial temporal lobe and habit/procedural memory supported by the basal ganglia are recruited when learning novel category representations. The theory guiding specific hypotheses about these neural systems and their operation in category learning...
This dissertation examines the role of market makers in making markets for options and futures on Chicago's derivatives exchanges. Recent institutional and technological changes in the ways that financial products are traded have given rise to the possibility of markets without market makers, raising the question of how these developments...
Lead poisoning is the most common environmentally-caused disease in the United States and is threat to human health worldwide. Although efforts to prevent lead exposure have increased throughout the years, lead poisoning still remains a common problem. Lead toxicity is more prevalent in children, who suffer from permanent neurodevelopment and...
Herpesviruses require axonal transport for the successful establishment of infection in peripheral ganglia (retrograde transport), and the subsequent spread to exposed body surfaces following reactivation from latency (anterograde transport). Viral progeny are assembled and spread to other tissues or hosts during egress. I focused on viral proteins which modulate directed...
The kinetoplastid protozoan <em>Trypanosoma brucei</em> is the causative agent of African trypanosomiasis, affecting humans, and Nagana disease, affecting cattle, prevalent in regions of sub-Saharan Africa. Our lab demonstrated that the flagellum of <em>T. brucei</em> is enriched in lipid rafts, membrane areas composed of sphingolipids, sterols, and proteins that serve as...
Humans routinely answer questions, make decisions, and provide explanations in the face of incomplete knowledge and time constraints. From everyday questions like "What will it cost to take that vacation?" to policy questions like "How can a carbon taxing scheme affect climate change?" we often do not have all the...
This dissertation combines critical ethnography, critical performance and historical analysis to examine three Trinidadian dance companies - Malick Folk Performing Company, Shiv Shakti Dance Company, and Noble Douglas Dance Company Inc. - asking how each choreographs Trinidadian discourses of race/ethnicity, class and national belonging through its own uniquely crafted embodied...
In this thesis, I argue that life and soul as analyzed in De Anima are examples of what Aristotle calls a "pros hen legomena" structure, a structure in which various things are said to be living in relation to one thing, which is the central meaning of life. The various...
Dimensionally constrained material systems are at the forefront of current materials research because of their novel and often enhanced physical, chemical and biological properties. The dimensionality effects are pervasive through different classes of materials including ceramics, metals and polymers. Often times dimensionality effects are manifested as internal structure variations in...
The first chapter of this dissertation investigates the pricing of systematic variance risk in the equity options market. Cross sectional tests on synthetic variance swap returns reveal no evidence of a negative market variance risk premium. Furthermore, we show that a class of linear factor models cannot simultaneously explain index...