Very few studies have examined school racial climate in racially diverse school contexts. School racial climate refers to “perceptions of interracial interactions and the socialization around race and culture in a school” (Byrd, 2017, p. 700). The association between interracial peer interactions, psychological well-being, and academic outcomes is well documented,...
This dissertation comprises three essays in distinct areas of economic theory, yet all are related to experimentation and learning. In the first chapter, I study how organizations assign tasks to identify the best candidate to promote among a pool of workers. Task allocation and workers’ motivation interact through the organization’s...
Systems of accountability for police who violate the U.S. Constitution are broken. Among other mechanisms of accountability, the judicial system should provide a path for victims to obtain a remedy when their constitutional rights are violated. Yet unless the law is clearly established beyond debate, the doctrine of qualified immunity...
Bio-integrated electronics with advanced monitoring capabilities have garnered considerable interest as a means of expanding patient care beyond traditional hospital and clinic settings. These mechanically soft microsystems, many of which are bioresorbable and wireless, have the potential to replace bulky, rigid, and wired medical technologies by matching or exceeding their...
This dissertation explores accounting information's role in forming R\&D alliances and subsequent innovation. Specifically, I utilize the effect of the recent revenue recognition rule change, Accounting Standard Codification (ASC) 606, on drug development firms. ASC 606 allows managers to change revenue recognition timing and increases disclosure requirements. I first document...
``Hazy decisions: The effect of dementia on medical decision-making'' \\ I estimate the causal effect of having dementia on the course of treatment for unrelated diseases by leveraging differences in the relative time of onset of dementia and the other condition in a difference-in-differences event-study framework. To demonstrate this approach...
Lithium-ion battery technology is a critically important component of the emerging renewable energy infrastructure. Since battery technology was first commercialized in the 1990s, significant progress has been made in materials development, motivated by the prospect of higher energy and power densities, increased cycling longevity, and faster charging and discharging rates....
Every day, we communicate through computers on projects ranging from a group lunch order to booking a flight to learning critical medical information. And every day, we also miscommunicate through computers: We don’t pick up on an intentionally humorous response, or we miss the criticality of a request. This is...
SCN2A encodes the NaV1.2 voltage-gated sodium channel, which is thought to contribute to the development of the central nervous system. Pathogenic variants in SCN2A have been associated with neurodevelopmental disorders (NDD), including developmental and epileptic encephalopathies (DEE), intellectual disability (ID), and autism spectrum disorder (ASD). These disorders represent a significant...
The speed of the storage device has long lagged behind the computation speed of processors.As a result, the I/O performance of storage systems in a supercomputer fails to keep up with its computational power.
This gap continues to widen in modern supercomputers.
On future exascale supercomputers, this issue can worsen...
Visual processing often requires the coordination of different neurophysiological regions in the visual system to independently represent and then re-integrate the different features of an object to gain an accurate and coherent representation of that object. Yet, under certain circumstances, this process can go awry and result in illusory misbindings,...
The basal ganglia operate largely in closed parallel loops, including an associative circuit for goal-directed behavior originating from the dorsomedial striatum (DMS) and a somatosensory circuit important for habit formation originating from the dorsolateral striatum (DLS). An exception to this parallel circuit organization was proposed to explain how information is...
This dissertation consists of three chapters on theoretical and empirical industrial organization. The first chapter highlights a previously unnoticed property of commonlyused discrete choice models, which is that they feature parallel demand curves. The second chapter studies how a behavioral consumer preference with “price reference effect” can overturn the standard...
This dissertation is a collection of three studies on topics in economic history and labor economics, in the United States. In the first chapter, I investigate the relationship between temporary paternal absence and long-term labor market outcomes. Specifically, I exploit the natural experiment of fathers’ WWII conscription, combined with longitudinal...
Simple sensorimotor tasks, such as lifting a cup or balancing a tray, requires not only controlled motor output, but also the ability to accurately perceive sensory information. After a hemiparetic stroke, individuals often experience sensory deficits in addition to motor impairments. However, research on the extent of changes in sensory...
As more thermoelectric materials/devices make it into the market for various applications, severalaspects need to be explored and optimized, beyond simply targeting high conversion efficiency at
the material levels. One critical aspect is the guarantee of mechanical stability at both the material
and the device level, which demands deeper understanding...
The potential association between Female Genital Mutilation (FGM) and the incidence of Human Immunodeficiency Virus (HIV) has been a part of academic discourse for three decades. By considering the mixed reports on the association between FGM and HIV so far, this dissertation contributes to the current state of research by...
This dissertation considers how women’s spectatorship—how women are imagined as viewing subjects, and what are defined as feminine ways of watching—is transformed by digital technologies, and what it reveals about the shifting nature of privacy and visibility. It maps the contours of our current configuration of gendered looking relations by...
Machine learning is seeping into every fabric in various practical domains such as autonomous driving, wearable computing, and smart buildings. However, in the actual development and integration, especially when the learning-based components are frequently included as components of large complex systems where the physical instances can be included as interactable...
As polymer science has advanced as a field, so too have the uses for polymeric materials. We encounter polymers and plastics on a daily basis, and while their presence has greatly improved our quality of life, they have also had a profound and often negative impact on our environment. Plastic...
Task-oriented conversational systems are becoming increasingly popular, as shown by the rise of conversational recommendation systems across multiple platforms (e.g., Google Home, Alexa, and Siri) and domains (e.g., local establishments, e-commerce, books, music, and movies). However, users are still largely limited in what preferences they can express and how, as...
Increasingly, governments contract with private firms to provide publicly funded or subsidized goods and services, ranging from defense contracts, social insurance programs to small business loans. In such publicly funded, privately provided markets, governments set specific rules and policies to allow efficient provision or allocation of goods and services. Given...
Russia and Turkey occupy a significant portion of current global news as the rest of the world analyzes the trajectories of these countries. Most scholars focus on the socio-political landscapes of the two while disregarding cultural and literary studies. Such a top-down approach fails to consider the profound identity crises...
The physical structure of chromatin has recently emerged as a key contributor to genome regulation and cellular function. Chromatin packing dictates the conformation of the 2-meter-long DNA polymer within the ~10 μm cell nucleus. This conformation can influence gene function by regulating the accessibility of molecular regulators to DNA, altering...
Pediatric high-grade gliomas (pHGGs) are aggressive pediatric CNS tumors and an important subset are characterized by mutations in H3F3A, the gene that encodes Histone H3.3 (H3.3). Substitution of Glycine at position 34 of H3.3 with either Arginine or Valine (H3.3G34R/V), was recently described and characterized in a large cohort...
In this thesis, we consider the categories of sheaves with singular support on certain Lagrangians and the categories of microlocal sheaves with support on certain Lagrangians obtained by microlocalization, and study properties of functors between these categories.First, we study one class of the microlocal restriction functor for open inclusions, namely...
In my dissertation, I explore the connection between economic history and political economy in three ways.Chapter 1, studies the effects of a postal program in the U.S. at the turn of the 20th century and its role in increasing access to higher education. Chapter 2, co-authored with Alexey Makaring and...
Social networks play a crucial role in developing economies. One of their most important functions is facilitating the flow of information, particularly about the efficacy of new technologies. This dissertation explores three aspects of this research agenda. First, I study how economists can estimate the structure of a social network...
In this paper, I analyze a piece of music that I wrote called The Health, a 90-minute musical ceremony that comprises speech, action, video projections, costumes, lights, chant, song, recomposed hold music, diagnostic exams, and renaissance magic. I wrote the piece for Mocrep and myself to perform, the initial run...
This dissertation reconstructs North and South Carolina Lowcountry plantation waterfronts as a means of better understanding mobility, inequality, and human-environment interactions in the antebellum Lowcountry. Using a theoretical framework of hydrosociality, the author undertook archaeological and archival research to investigate the question: how did the built environment of navigable waterways...
Colloidal crystals engineered with DNA are fascinating structures that constitute an emerging form of programmable matter. Indeed, the use of DNA as a programmable bond has led to thousands of new crystal types, with exquisite control over crystal symmetry and lattice parameters. However, synthesizing large (> 100 µm) single-crystals has...
In the United States, those who have lower income, education level, and occupational prestige, are more likely to develop, have worse symptoms of, and die from a wide range of chronic diseases. This phenomenon prompted much research trying to delineate the underlying pathways, and inflammation has been highlighted as a...
This dissertation has three chapters. Chapter one evaluates the effects of Short-Time Workin Germany during the great financial crisis. Chapter two describes how British inventors
during the industrial revolution worked on more central technologies. This in turn resulted
in faster growth. Chapter three builds on a novel patent data set...
Deduplication, also referred to as "entity resolution", is a common and crucial pre-processing step in the construction of social networks. Traditional deduplication methods compare the attributes (such as name and age) of potential matching pairs to estimate a match probability for a pair. Recently research has used clustering techniques for...
How do exporting firms react to changes in the cost of credit? To answer this question, we exploit an exogenous variation in banking regulation which increases the cost of financ- ing for exports in the European Union. Using a unique dataset which combines customs, firm-level, and credit registry data on...
Over the past decade the market for children’s digital play activities focused on science, technology, engineering, and mathematics (STEM) has grown exponentially. One benefit to the growth in digital STEM play is that it can provide children opportunities to engage the cognitive skills and practices that can be valuable for...
Different features of the visual world are conveyed to the retino-recipient regions of the brain by more than 40 types of retinal ganglion cells (RGCS). Feature detection by RGCs depends on a combination of intrinsic and morphological properties where the interplay of excitatory and inhibitory inputs occurs through local retinal...
Meiosis is a specialized form of cell division that gives rise to haploid reproductive cells by replicating the genetic material once and undergoing two rounds of partitioning. While most forms of cell division require centrosomes to assemble a bipolar microtubule-based spindle that segregates chromosomes, female gametes (oocytes) are unique in...
As opposed to the nanoscale deposition techniques often used for material syntheses, here, I focus on mesoscale material depositions and how to design interfaces to efficiently manage such deposition and potential accumulation. These deposition processes include condensation, condensation frosting, particle capture, and vaporization. Through the lens of energy and sustainability,...
Mindfulness is the dynamic process of building and maintaining awareness of one’s environment and paying attention to stimuli (Langer, 1989; Brown, Ryan, & Creswell, 2007). A cognitively effortful endeavor, mindfulness requires “the capacity to respond to unanticipated cues or signals from one’s context” (Levinthal & Rerup, 2006, p. 504). Mindful...
This thesis focuses on exploring the explanatory and discovery potential of the four-neutrino and enhanced neutrino magnetic and electric dipole moments hypotheses when
applied to the NOvA/T2K discrepancy and the XENON1T anomaly, respectively. Firstly,
we study the effect of a very light (sub eV) sterile neutrino on the NOvA/T2K anom-...
Recommender systems (RSs) have become essential tools that provide personalized recommendations to their users. These systems may consider user, item provider, and system requirements simultaneously. With the inclusion of possibly clashing considerations, there is a growing focus on solving multiple-objective recommender system (MORS) problems as efficiently as possible. The constrained...
We establish the criterion for chaos in three-planet systems, for systems similar to those discovered by the Kepler spacecraft. Our main results are as follows: (i) The simplest criterion, which is based on overlapping mean motion resonances (MMRs), only agrees with numerical simulations at a very crude level. (ii) Much...
A great deal of work has been done in recent years to construct algebraic invariants ofLegendrian knots, and their higher-dimensional analogues. Here we employ the diagram-
matic calculus developed in [3], in order to develop an iterative method for computing the
so-called vexillary functions of a class of Legendrian surfaces....
Autism spectrum disorder (ASD) and intellectual disability (ID) are two of the most highly prevalent neurodevelopmental disorders (NDDs), each affecting roughly 2% of the population. Despite the need for therapies, few exist due to a myriad of challenges, such as the complex underlying genetic etiology and historic inaccessibility of neural...
The production and spread of digital news involves a wide range of actors: journalists and the organizations that employ them, social media platforms, audiences, and myriad commentators, citizen journalists, bloggers, and other actors who contribute to the news ecosystem without inhabiting an official role. These actors interact in flexible, often...
This dissertation presents an affect-centered approach to the analysis and interpretation of the experience of music and its attendant meaning in selected works of literature and cinema. Music’s interpretative mutability often charges it with meaning, though in infinite gradations of singularity rather than any universal sense. Rather than undertake a...
Vertebrate brains evolved to facilitate a diverse array of behaviors and internal cognitive processes. Theories of neural function have proposed that neural computation is organized within populations or ensembles of neurons. Here, we identify ensembles of neurons in the striatum, the main input nucleus of the basal ganglia, in which...
This dissertation studies three markets with regulated prices. I focus on how these regulations shape the behavior of firms along non-price dimensions. Chapter 1 studies the effects of community rating regulations in the US individual health insurance exchange market. In this market, the Affordable Care Act established community rating areas...
The dissertation project considers the generative possibilities to envision Black subjectivity that emerges from a sustained consideration of different forms of difficult racial and sexual intimacies. The artists whose work is engaged throughout the project, Leasho Johnson, Ajamu X, and NIC Kay recognize that to be Black is to always...