Halide perovskites, AMX3 (A = monocation, B = Ge, Sn, or Pb, and X = halogen), present a versatile class of solution-processable semiconductors made from earth abundant materials with outstanding electrical and optical properties. Their solar cell efficiencies have dramatically increased from ~9% to ~22% in less than five years...
Circling the Cosmograms marks the first full-length study of second-generation feminist and/or queer art and performance in the Haitian Dyaspora (Haitian Kreyòl spelling) following the January 12, 2010 earthquake in Haiti. Through archival research, visual and performance art analysis, and in-depth interviews, I document the ways feminist and/or queer Haitian-American...
Accurate thermodynamic databases are the foundation of predictive microstructure and property models. An initial assessment of the commercially available Thermo-Calc TCAL2 database and the proprietary aluminum database of QuesTek demonstrated a large degree of deviation with respect to equilibrium precipitate phase prediction in the compositional region of interest when compared...
Free radical polymerization has a wide range of applications and continues to attract research interest as the demand for tailored specialty polymers grows. Sequence distribution, tacticity and composition of copolymers play a key role in understanding the reaction kinetics and the properties of the polymers 1. One of the chief...
Thermal overheating is a serious concern in modern supercomputing systems. Elevated temperature levels reduce the reliability and the lifetime of the underlying hardware and increase their power consumption. Previous studies on mitigating thermal hotspots at the hardware and run-time system levels have typically used approaches that trade off performance for...
Spatial-temporal data mining, with data driven model and machine learning techniques, significantly benefit the traditional transportation research. This dissertation focus on three problems related to uncertain location data, lane-level traffic speed clustering and anomalous traffic speed prediction.
We take a first step towards combining the uncertain location data i.e., fusing...
This dissertation explores the relationship between dance cultures and media cultures in the United States between the 1940s and the 1960s, when both were experiencing a period of multiplicity and flux in their forms. Bringing together theories and methodologies from dance studies, media studies, and cultural history, it considers how...
In this thesis, we advocate for the use of slice spheres, a common generalization of representation spheres and induced spheres, in parameterized homotopy theory. First, we give an algebraic characterization of the layers of the Hill-Hopkins-Ravenel slice filtration.
Next, we explore the homology of parameterized symmetric powers from this point...
The floor plate (FP) is a ventral midline organizing structure of the developing neural tube that provides positional information using morphogen concentration gradients towards the production of diverse neuron types. In caudal regions the FP is non-neurogenic unlike the mesodiencephalic region of the FP that is highly neurogenic, and is...
Traditionally, simulation analysis has focused on designing a computationally efficient algorithm assuming a correct simulation model is given. As computation becomes cheaper, we are now able to perform more sophisticated simulation analyses involving extensive computation and consider all sources of errors in the simulation model and their effects to the...
This dissertation, “Altered Belonging: The Transnational Modern Dance of Itō Michio,” argues that Itō forged an artistic and social identity out of the very categories of racial and national difference typically used to exclude Japanese from Euro-American society. The strategies he employed provide a paradigm for how performing bodies marked...
This dissertation contains three results related to modular forms and Galois representations of low weight. In chapter 1, we prove that the Galois pseudo-representation valued in a Hecke algebra which acts faithfully on a space of weight one Katz modular forms of level prime to p is unramified at p....
With the advances in electronics and communication devices over the last several decades, radio-frequency antennas have miniaturized from externally mounted “rabbit ears” on our grandma’s televisions to devices small enough to be concealed within the body of the cellphone itself, corresponding to the carrier frequencies used from on the order...
This dissertation comprises three essays on industrial organization. In Chapter 1 I study the productivity effects of corporate diversification, where productivity is understood as a measure of sales per input at the productive unit level, and diversified firms are defined as firms that operate in different industries. I develop and...
Knot invariants can be defined using Legendrian isotopy invariants of the knot conormal. There are two types of invariants raised in this way: one is the knot contact differential graded algebra together with augmentations associated to this dga, and the other one is the category of simple sheaves microsupported along...
The U.S. Department of Education’s Ready To Learn (RTL) initiative funds (a) mass media and related community outreach intended to promote school readiness among all children—especially at-risk populations—, and (b) formative and summative research by third party evaluators (Michael Cohen Group, 2012). Today, the majority of American preschoolers have consumed...
Languages provide expressions that allow its users to indicate their source of information for a given claim, which can have an effect of attenuating how committed they appear to be to the truth of their claims (e.g., ame-ga futteiru-sooda ‘It is raining, I hear’). This linguistic notion has been termed...
In this dissertation, I discuss the role of neutrino masses and fermion flavor in modern particle physics and present several efforts aimed at exploiting these properties in searches for new physics. In particular, I discuss (1) the effects of neutrino decays on neutrino propagation; (2) the sensitivity of the Deep...
The African trypanosome Trypanosoma brucei is a single-celled eukaryotic protozoan parasite with a single cilium/flagellum. It cycles between its mammalian host (bloodstream cell), in which it scavenges cholesterol, and its tsetse fly host (procyclic cell), in which it both scavenges cholesterol and synthesizes ergosterol. For the first part of the...
People today increasingly first meet others in mediated spaces, undergoing impression formation processes where they view information, gain impressions, and make decisions about others. Previous research examines profile information (e.g. name, photo, about me) that people provide about themselves within this process, finding that people try to craft profiles for...