In this dissertation, we study and prove formulas of Hodge ideals for three types of isolated hypersurface singularities, including quasihomogeneous singularities, Newton non-degenerate singularities and analytically irreducible plane curve singularities.
For quasihomogeneous singularities, we provide
a formula of Hodge ideals of $D=\alpha Z$ which is a Q-divisor.
A direct consequence...
La Cotidianidad en la novela gráfica latinoamericana del siglo veintiuno investiga los elementos que conectan a la primera generación de artistas latinoamericanos del cómic que publican su arte principalmente en novelas gráficas, especialmente en relación con el uso de representaciones de la vida cotidiana en la región como principal motor...
Nanoelectromechanical (NEMS) systems fabricated using atomically-thin materials have low mass and high stiffness and are thus ideal candidates for force and mass sensing applications. Transition metal dichalcogenides (TMDCs) offer certain unique properties in their few-layered form – such as piezoelectricity and a direct band gap in some cases – and...
To survive, animals, including human beings, have developed an amazing ability to learn the constantly changing environment. Specifically, detecting specific odorants in a noisy, variable background is crucial for finding food and water, mating, and avoiding potential dangers. For this purpose, rodents have developed an olfactory system that is powerful...
The electric grid is changing rapidly with a proliferation of new technologies being integrated. There is a need to analyze the growth in technologies to help move towards a carbon-free electricity sector such as renewable generation and large scale battery installations. This is occurring at the same time as the...
Total synthesis of natural products provides an avenue for investigation of complex chemical scaffolds, not only delivering access to biologically impactful molecules but also lending a deeper understanding of their inherent chemical reactivity. Expansion of reaction methodology, optimization of biological activity, and absolute structural confirmation can all be accomplished via...
In shared workspaces users have real-time access to others’ actions, allowing greater access to potentially informative cues. However, there has been little exploration about what impact the ability to view each other’s work in real time has on group members’ perception of both each other and their understanding of the...
The COVID-19 pandemic disrupted the status quo of the telemobility landscape in the United States, forcing millions of Americans into lock down, significantly changing the way we work, travel, and spend our time and money for an extended period of time. After several months of adaptation, adoption, learning, and unlearning,...
The staggered (or imbricated) lamellar ``brick-and-mortar" nanostructure of nacre endows nacre with strength and fracture toughness values exceeding by an order of magnitude those of the constituents, and inspires the advent of new robust biomimetic materials. While many deterministic studies clarified these advantageous features in the mean sense, a closed-form...
Two-dimensional (2D) hybrid halide perovskites have been the response to their exciting but woefully unstable 3D counterparts. These 2D perovskites have been shown to have respectable stabilities as photovoltaic absorbers, yet they lag behind the 3D perovskites in terms of efficiency. With the need to catch up to the efficiencies...
In a wide range of political systems, political parties and politicians deliver special favors and material benefits to their constituents as a means of mobilizing their support during elections. This phenomenon, called patronage politics, is the focus of this dissertation. Although existing research has uncovered important variations in the patterns...
The dissertation systematically delineates the mechanically-guided deterministic assembly of three-dimensional (3D) mesostructures by compressive buckling, covering topics from mechanics concepts, design and analysis, fabrication techniques, to application opportunities. The development of approaches to form complex 3D functional mesostructures in advanced materials is a topic of broad interest, thanks to the...
Plato's readers struggle to reconcile his combination of conceptual argument and mimetic fiction. In this dissertation, I suggest we can understand this discomfiting combination if we understand the dialogues as "the mimesis of people in speech." Because speech is both referential and performative, speech is a hybrid of thought and...
This dissertation models and simulates optimization problems to find the optimal set of strategies to allocate network space (lanes or zones) to autonomous vehicles (AVs) in partially automated dynamic networks. This dissertation aims to develop a set of methods to determine the appropriate AV managed space strategies. Managed space strategies...
The development and use of organic anionic chromophores that absorb the entire visible spectrum & into the near-infrared region while providing highly reducing equivalents is pinnacle for artificial photosynthesis. This dissertation investigates the rational design of new donor-acceptor systems for artificial photosynthesis that couple naphthalene diimide (NDI)/perylene diimide (PDI) radical...
Assistive robots have the potential to support motor recovery after an injury as well as to alleviate the burden of physical tasks for both impaired and able-bodied individuals. Over the last few decades assistive robots have become increasingly more capable. Many can now provide task-specific assistance and can be safe...
In this thesis, we study applications of the theory of perverse sheaves and their enhancements to problems in birational geometry. In the first application, we give positive results towards a conjecture of Batyrev about the nonnegativity of stringy Hodge numbers. In particular, we prove the nonnegativity of $(p,1)$-stringy Hodge numbers...
Abstract The relationship between truth and politics is an ancient and venerable problem in political philosophy. But just as the traditional subordination of politics to philosophy has obscured central categories and experiences of politics (like action and freedom), it has also obscured the distinctive problem of truth in politics, or...
Engineering design is a systematic process of identifying needs and their translation into functional systems. This is a cyclic process that alternates between the acquisition of data and the synthesis of said data to inform design decisions. Conventionally, data from physical experiments are used to explore the efficacy of alternative...
In Chapter 1, I investigate whether physical capital anchors the spatial distribution of economic activity and how capital destruction affects local economic activity in the short and the long term. I investigate these questions by examining the 1975 frost that damaged coffee trees in the Brazilian state of Paraná. I...
Cells are often precisely organized into patterns within developing tissues. This precision must emerge from biochemical processes within, and between cells, that are inherently stochastic. I investigated the impact of stochastic gene expression on self-organized pattern formation, focusing on Senseless (Sens), a key target of Wnt and Notch signaling during...
The variation of entropy in a family of dynamical systems is a natural indication of the bifurcations that the family undergoes. In the context of one-dimensional dynamics, Milnor's monotonicity of entropy conjecture (now a theorem of Bruin and van Strien) asserts that for polynomial interval maps with real critical points...
Phenotypic diversity underlies life as we know it–a variety of species, each with different roles, are essential for a fully functioning ecosystem just as a range of different crops is necessary to provide different nutritional value. Even within a single species, individual variation promotes diversity, allowing for adaptation to new...
I. The distribution of tsunami amplitudes in the open ocean is controlled by source mechanism and bathymetry geometry. Although detailed studies have considered heterogeneity effects in earthquake tsunami sources, little or no attention has been paid to the effects of physical resolution of detailed bathymetry on tsunami waveforms in the...
Approximately 80-90% of individuals with Parkinson’s disease (PD) develop motor speech impairments, predominantly in the form of voice dysfunction. It is known that the motor symptoms of PD arise from degeneration of the dopamine producing neurons in the substantia nigra and dysregulation of basal ganglia motor pathways. It is also...
Conservation efforts start with understanding the life cycle and interactions of species. For example, orchid conservation requires understanding pollinators as well as mycorrhizal fungi because these are mutualisms orchids require. For instance, all orchids require assistance from orchid mycorrhizal fungi (OMF) to germinate and some orchid species continue to be...
Soft matter is the field of science concerning soft and deformable materials: such as liquids, gels, and foams. Active matter is a sub-field of soft matter that considers systems that contain active agents or particles that consume energy for self-propulsion or to exert mechanical stress on the surrounding system. In...
Astronomy has entered a “multimessenger” era: one that combines electromagnetic “sight” with gravitational “touch.” This dissertation serves as a roadmap of the multimessenger frontier, to join the littered environments of dead and dying starswith their unclear origins. To uncover stars’ innermost secrets, we explore rare, transient glimpses into single, double,...
Voltage-gated potassium (KV) currents play a crucial role in shaping and controlling the firing patterns that serve as the fundamental basis for the differential signal processing from the ear to the auditory cortex, with distinct firing patterns observed with high- and low-frequency phenotypes. This is an interesting phenomenon, in the...
Directional freeze-casting is a porous materials fabrication technique that is used to create materials with complex, three-dimensional pore structures. Particle suspensions are solidified under a thermal gradient, promoting anisotropic growth of dendrites and incorporation of particles within interdendritic space. A fully-solidified directional freeze-cast structure is composed of dendrites that are...
Proper size control of organs and tissues is critical to their function, and it is necessary for the millions of precisely sized tubes that make up those organs— for example, excessive cell growth can lead to devastating diseases such as Polycystic Kidney Disease. The regulation of tube growth is therefore...
The gender imbalance in computer science is getting worse, with computer science being the only Science, Technology, Engineering, and Mathematics (STEM) field in which women’s representation has steadily declined throughout the past few decades. Rectifying this gender imbalance is an urgent need, both because of fundamental issues of equity and...
This dissertation is a cultural history of state-sponsored film in India and Iran. I focus on the 1960s-1980s, a period during which both countries enacted sweeping development agendas, which included industrialization, the expansion of higher education, and social reforms. I engage in a comparative analysis of each state’s pedagogies of...
Situated at the intersection of literary, religious, and economic studies, this dissertation examines how late medieval writers used commercial practice to invent new modes of penitential piety. Challenging scholarship that characterizes the relationship between church and commerce as exclusively antagonistic or corrosive, I argue that the convergence of these two...
This thesis investigates Hugo von Hofmannsthal’s undermining of soteriological poetics in his comedy Der Schwierige (“The Difficult Man”), with a focus on the complex interplay between meta-language (e.g., stage directions) and dramatic dialogue, normative and contingent speech (i.e., ‘ironic speech’). By challenging what I term the “soteriological agenda” of comedy...
From its inception in the early 1900s, vocational education in American high schools was designed to prepare students for jobs that did not require any formal postsecondary education. In the last decades of the 20th century, growing concern about how separating students into “college” and “non-college” tracks often perpetuated racial...
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,...
Motivated by real-world problems in various fields, mechanism design governs the design of protocols for strategic agents and has applications both in computer science and economics. Due to the revelation principle – a seminal observation in mechanism design, a vast number of studies in mechanism design focus on revelation mechanisms...
“Repurposing Queens: Excavating a Black Feminist Eco-ethic in a Time of Ecological Peril,” articulates how Black feminist theories of race, gender, and science critique both conservative and liberal trends in environmentalism and environmental studies. The project is transnational in scope in that it analyzes figures/objects from the United States and...
This dissertation seeks to explain the discursive origin, development, and transformation of “Republican anticommunism,” and how and why this state-originated ideology continues to shape Vietnamese exile communities today. The dissertation focuses on examining mechanisms that allows certain narratives produced by the Republic of Vietnam to persist, despite the regime changes,...
In conventional data federations, a set of data providers each possess an autonomous database and collectively make the union of these databases available for querying by a client from a unified SQL interface. This setting however, provides no guarantees on data privacy or security. With my work, I consider a...
Background: The way in which one perceives their visual world (i.e., bottom-up visual perception) and what one pays attention to in their surroundings (i.e., top-down attention), are critical to uncovering underlying thoughts and cognitions, and impact how one operates in the social world. Individuals with autism spectrum disorder (ASD), a...
The first chapter of this dissertation looks at strategic complementarities among investors inpooled investment vehicles where fund managers and investors have different objectives. Could
lessening strategic complementarities among the investors of a fund make investing in the fund
less appealing? Exploiting the 2014 Reform of the money market mutual fund...
This dissertation consists of three essays on housing and macroeconomics. The first chapter explores the impact of demographic change on housing price using a heterogeneous agent overlapping generations model. The second chapter examines the relationship between the marginal propensity to consume (MPC) and the housing choice. The third chapter presents...
The mammalian retina contains three classes of photoreceptors: rods, cones and the recently discovered intrinsically photosensitive retinal ganglion cells (ipRGCs). ipRGCs express the photopigment melanopsin and were initially thought to be a homogeneous population of cells that drive subconscious visual behaviors such as circadian photoentrainment and pupil constriction. However, recent...
This dissertation proves several results for first passage percolation on graphs of polynomial growth.The class of limit shapes for first passage percolation with stationary weights on Cayley
graphs of virtually nilpotent groups is characterized.
Then strict monotonicity theorems for independent first passage percolation on graphs of
polynomial growth and quasi-trees...
Symbiotic relationships involve a life-long interaction between host and bacteria, and there is much we do not understand about how these interactions are developed and maintained. During the horizontal recruitment of beneficial bacteria by hosts, a complex set of molecular signals and communication ensures specificity. On the bacterial side, these...
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...
Even though a number of techniques have been developed for motion generation and perception, few of them focus on the computational efficiency and theoretical guarantees at the same time. Typically, improved guarantees come with increased complexity, making theoretically guaranteed methods challenging use in real-time applications. Thus, existing methods usually have...
This dissertation argues that silence played a fundamental role in the Victorian novel and in Victorian novel writing, operating as a productive force in service of sympathetic exchange and creative labor. It examines Charles Lamb's and Thomas Carlyle’s foundational roles in detaching silence from its traditional Romantic associations with solitude,...
The mammalian oocyte undergoes large fluctuations in zinc content as it matures from a prophase I arrested oocyte to a metaphase II egg and finally is fertilized to become a zygote. These changes in total zinc content are necessary for proper progression, as disruption to egg’s ability to acquire and...
This dissertation focuses on subgroup identification in longitudinal studies. There are two different but related topics. In chapter two and chapter three, several longitudinal based methods for subgroup identification with enhanced treatment effect are proposed to correct the deficiency in measuring treatment effect by simply using a summary statistic. In...
After the Second World War, two states claimed to represent the same nation: “China.” This work examines how the Kuomintang (KMT) and the Communist Party of China (CPC) competed to represent China and the international consequences of that competition. The CPC’s victory in the Chinese Civil War (1946-1949) led to...
This dissertation starts with the question of what the global resurgence of authoritarianism means for the welfare states affected by it. The inadequacies of the dominant partisan and institutionalist paradigms within the welfare state literature suggest, however, that a new paradigm for understanding welfare state development is necessary to answer...
This dissertation explores how a nonprofit network orchestrator went through revolutionary change in response to the COVID-19 pandemic. Throughout data collection, the nonprofit sector grappled with uncertainties about the funding landscape (Batsell, 2020), how to deliver programming when in-person interactions were impossible (Warren, 2020), substantial job losses (Newhouse 2021a; Newhouse...
Bioresponsive imaging probes act as beacons to allow detection, tracking, and study of otherwise invisible actors in biological systems. Understanding how these underlying systems function in their native context is essential to identifying dysfunction and generating effective remedies. Magnetic Resonance techniques are particularly interesting for this application because of the...
With connected vehicle generated (CVG) information, traffic stream parameters become straightforwardly quantifiable, enabling traffic state characterization and examination over a variety of operational conditions. Since the observation is independent of any spatial restrictions and unaffected by queue buildup and discharge, CVG data offer more comprehensive, more reliable inputs to the...
Racial and economic disparities in education, employment, and wealth continue to pervade modern U.S. society—and American workplaces reflect and reinforce these vast inequalities. In response, organizations spend an estimated $8 billion annually on diversity, equity, and inclusion (DEI) initiatives. Despite these efforts, many DEI initiatives have limited success. My dissertation...
This dissertation studies three aspects of health insurance market regulation and design. Chapter 1 (which is joint work with Steve Cicala and Ethan Leiber) studies a regulatory mechanism used to constrain insurer market power. The mechanism targets health insurers' Medical Loss Ratio, which is the share of premiums spent on...
Nucleic acids such as DNA or RNA of various lengths and structures have a wide scope of functions as therapeutic entities compared to conventional drugs. For instance, native and modified forms of nucleic acids can be used for gene silencing, genome editing, gene replacement, immune system modulation, and theranostics. While...
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...
The presence of subjective cognitive decline (SCD) among cognitively normal-for-age older adults is increasingly hypothesized to represent a preclinical stage in the development of Alzheimer’s dementia (Jessen et al., 2014). This project aimed to characterize this construct with regard to its cognitive, motor, emotional, and functional features. The first study...
Sequential change-point detection for time series enables us to sequentially check the hypothesisthat the model still holds as more and more data are observed. It’s widely used in data monitoring
in practice. In this work, we propose two models: Binomial AR(1) model and Generalized
Beta AR(p) model, for modeling binomial...
Biomineralization relies on the regulation of localized environments to control how minerals are formed. Through the use of confinement and specific additives, the organism is able to change the energy landscape of nucleation and growth to build single crystals with unusual morphologies. In order to better understand the environments in...
Thermoelectric modules that convert heat into electrical energy are attractive for improving global energy management. This thesis reports the synthesis and characterization of two new families of lead and tin chalcogenide alloys and focuses on the impact of the grain boundaries, phase segregation, and atomic vacancies on the electronic and...
This dissertation proposes a theory that views beats as probabilistic domains that I term “pockets,” taking a vernacular term commonly used by jazz, funk, and popular music performers to describe the state of being in a good groove and making it concrete through empirical methods. Pockets have three key properties:...
Over the past two decades, the field of N-heterocyclic carbene (NHC) organocatalysis has distinctively enabled the construction of enantioenriched heterocycles, and the power of cascade and one-pot processes has led to an ever-increasing level of synthetic efficiency in the assembly of complex architectures. Here these tools are employed in concise,...
Though they lived a century apart and wrote in starkly disparate historical, cultural, and literary contexts, Russian poets Aleksandr Pushkin and Vladimir Mayakovsky were both victims of the posthumous processes of bureaucratization and monumentalization at the hands of the Soviet regime. Their biographies, politics, and poetry were sanitized and manipulated...
A one-time, unilateral injury to the developing brain can interrupt the typical process of development and result in motor impairments that evolve over the course of the whole life-span. The timing of injury relative to neural development has implications for the continued refinement of the nervous system and the descending...
Using social network analysis and legal, regulatory, and policy-based case studies, this dissertation explores the ways information and communication technologies (ICT) are regulated internationally. First, it details the composition of the interorganizational, cross sector network, describing the member and governance bodies active in ICT standard setting organizations (SSOs) and the...
From the 1990s through the 2000s, gross-out comedy – in the broadest terms, the style of physical comedy that emphasizes bodily functions and fluids, transgressive imagery and behavior, and shock value and disgust – triumphed as a subgenre of popular narrative film and television comedy. Gross-out comedy first emerged as...
A framework is developed that models point defect diffusion and interaction with pre-existing microstructures during irradiation, including defect-defect interactions and defect sinks. This framework uses a modified diffusion potential that includes not only defect concentration, but also intrinsic stresses from the pre-existing microstructure. Various microstructures are studied in {Fe} by...
The term Connected Vehicle (CV) is broadly used to identify any ‘smart vehicle’ with wireless connectivity to the roadside infrastructure and other vehicles. CVs with automation capabilities are called connected automated vehicles (CAVs). With real-time communication and data transmission capability, CAVs have the potential to improve the transportation system’s traffic...
The policies of secular governments in constitutionally secular countries are at times marked by the influence of religious politics. Religious politics is specifically defined here as a politics of extending the norms of religion into the public sphere through religious legislation. Thus, some governments lend the state’s coercive capacity to...
The embryonic neural crest is a unique vertebrate stem cell population that has the ability to retain its stem attributes while neighboring cells in the embryo undergo lineage restriction. These cells possess multi-germ layer developmental potential and can give rise to a diverse array of derivatives such as components of...
Dynamic covalent chemistry (DCC) combines the strength and directionality of covalent bonds with the reversibility of supramolecular interactions. The formation and stability of these bonds are typically regulated by parameters such as temperature, pH, concentration, catalyst loading and light. Light is an exceptionally powerful stimulus because it can be applied...
The ubiquitous role of water in biochemical, electrochemical, and geochemical systems has driven scientific interest in studying the fundamental hydrogen-bonding interactions that water molecules exhibit in the presence of different materials.Specifically, we focus on the interactions characterizing water at the interface between two bulk media, as these are essential to...
Introduction: Irritable bowel syndrome (IBS) is a disorder of gut-brain interaction associated with reduced quality of life, increased rates of depression and anxiety, and high economic burden to society and the individual. Current behavioral interventions, which target well-known symptom exacerbating factors such as catastrophizing and gastrointestinal- specific anxiety, have demonstrated...
Dendritic microstructures form during the solidification of a variety of metal parts, from traditionally cast engine blocks to 3D-printed specialty tooling. These dendrites can evolve through growth, coarsening, fragmentation, and the formation of a Columnar-to-Equiaxed Transition (CET), which all can greatly affect material properties. However, the basic science behind these...
“Love’s Limits: In Persian Poetry and Film” explores the unbounded, unruly, anarchic, border-traversing potential of love through the works of Iranian poets and filmmakers spanning a millennium. In each of the works examined in this study, love precipitates a crisis in relation to a different set of questions or problems...
Autism spectrum disorder (ASD) is a heritable, neurodevelopmental disorder characterized by social impairments and restricted and repetitive behaviors (American Psychiatric Association, 2013; Tick, Bolton, Happe, Rutter, & Rijsdijk, 2016), with a subset of first-degree relatives demonstrating a constellation of subclinical traits that are qualitatively similar to the defining features of...
The advent of metamaterials—hierarchical structures that manifest properties beyond those found in nature through geometry rather than material composition—inspired new possibilities and research in many fields. In mechanics, periodic metamaterials exhibit behaviors ranging from unprecedented compressibility to extreme stiffness. Numerous geometric classes of metamaterials with these properties have been discovered,...
Affect infusion occurs when feelings elicited by one stimulus (an affect-laden cue) influence reactions to a different stimulus (an attitude object). This effect often happens when the two stimuli are experienced closely in time and space. According to Gestalt principles, a spatial/temporal covariation of the two stimuli can make them...
The highly flexible nature of 2D materials has led to them becoming fundamental building blocks for achieving novel device physics and potential breakthroughs in practical technologies. 2D layers can be interfaced in a wide array of methods with themselves, other 2D layered materials, or materials of entirely different type or...
In this paper we begin the study of the (dual) Steenrod algebra of the motivic Witt cohomology spectrum H_Wℤ by determining the algebra structure of H_Wℤ∗∗H_Wℤ over fields k of characteristic not 2 which are extensions of fields F with K^M_2(F)/2=0. For example, this includes all fields of odd characteristic,...
This dissertation asks how researchers can create more equitable algorithmic systems. Ultimately, this thesis explores methods and implications of representing subjects of analysis in the design and evaluation of algorithmic systems. I also unpack how algorithmic tools measure and quantify human behavior, giving heed to the potential impacts of these...
Individuals within a species vary in complex phenotypes, such as responses to toxins. This drug-response variation causes patients who are treated with the same medicine to experience a range of side effects, ultimately decreasing the efficacy of some drugs. Particular genetic variants among individuals might contribute to differential drug responses,...
Compromised protein homeostasis underlies accumulation of plaques and tangles in Alzheimer’s disease (AD); however, little is known about the early mechanisms that contribute to this process. To objectively assess protein turnover at early stages of amyloid beta (Aβ) proteotoxicity, we used dynamic metabolic labeling with stable isotopes followed by proteomic...
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...
Learning to read is a complex process that requires integration across sensory, cognitive, and linguistic processes. Accordingly, there are numerous process that may lead to early reading difficulties. The earlier these difficulties are found, the more effective interventions can be, and the deleterious effects of falling behind in reading cannot...
Stimulus generalization is a critical mechanism for facilitating behavioral flexibility. Generalization allows the brain to reduce computational demands that would otherwise be necessary to create unique representations for each and every encounter while allowing the ability to deal with the complexity of real-world situations. Stimulus generalization is a fundamental cognitive...
External manipulation of soft matter underlies a multitude of advancements in far-from-equilibrium materials. The application of magnetic fields has proven tremendouslybeneficial due to its ability to impart rapid and precise changes throughout soft magnetic systems. This has led to scientists and engineers to develop composite materials that take advantage of...
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...
In reinforcement learning (RL), an agent aims to learn the optimal policy by interacting with the environment and collecting the reward for each action taken. With the aid of strong function approximators such as the neural networks, RL achieves tremendous empirical successes in various scenarios, including game playing \citep{silver2016mastering, silver2017mastering},...
“Speculative Justice” asks how U.S. terrorism cases with numerous indicators of entrapment prevail in federal court despite case law designed to prevent these very policing practices. Drawing on a combination of two case studies, an original archive of digital court filings from over 250 defendants, and a collection of over...
This dissertation addresses questions in the fields of household finance and corporate finance. In Chapter 1, I use a quasi-experiment in Norway to examine how households respond to capital taxation. The introduction of a new wealth assessment methodology in 2010 led to geographic discontinuities in household exposure to wealth taxes,...
This dissertation contributes to the theory of segregation and methodologies to measure it. The first two chapters focus on the traditional problem of quantifying segregation in traditional survey data through segregation indices. Segregation indices describe the segregation of an environment with one number – usually from 0 to 1. The...
DNA double-strand breaks (DSBs) are caused by either endogenous agents or exogenous ionizing radiation and chemicals. Incorrect DSB repair can lead to undesired genome rearrangements. Homologous recombination (HR) and non-homologous end-joining (NHEJ) pathways are two major DNA repair pathways that repair DSBs and maintain genome integrity. When homologous DNA is...
Depression is a challenging mental illness that requires individuals to manage their moods and emotions over time. While past mental health literature describes how individuals seek and share support on social media and within online communities, the ways that offline and one-on-one supportive interactions unfold is less clear. To address...