This dissertation consists of three essays on corporate governance. In the first essay of the dissertation (“The Effects of Succession Planning on CEO Succession Events: Implications for Both Focal and Competing Firms”), I examine whether and how both focal and competing firms are affected by sudden CEO deaths. By using...
This dissertation examines how the maintenance and adaptation of heritage monuments and ritual traditions have contributed to the sustainability of communities on the islands of Inishark and Inishbofin along the west coast of Ireland. My analysis combines archaeological investigation of a pilgrimage tradition on Inishark, from its origins in the...
For women, age is one of the best predictors of fertility. Younger women are typically more fertile, and ability to conceive declines until a woman reaches menopause. However, the age at which an individual woman becomes less fertile varies depending on many factors unique to her individual body, including genetic...
This dissertation explores two factors that affect innovation. The first factor studied is extrinsic, namely, the legal environment. The second factor is a factor of input into innovation - culture of the inventors. The first chapter studies the impact of a weakened patent environment on research investments. Departing from the...
Location awareness will be crucial for many future wireless network applications, such as the Internet of Things (IoT) and vehicular networks. In particular, the IoT will connect a massive number of new devices to wireless networks. Localization solutions that work in urban environments and have solutions which scale well with...
This dissertation argues that the U.S.’s World War I experience helped condition Americans to relate to war primarily through cinematic recreations. The country’s geographical distance from the fighting provided Americans a degree of geopolitical spectatorship from which they could imagine their nation’s role in an ever-changing world through film. Onto...
This thesis contains results in mathematical quantum ergodicity in a probabilistic or a complex analytic setting. For the former, we show that a random orthonormal basis of spherical harmonics is almost surely quantum ergodic, in which the randomness is induced by the generalized Wigner ensemble. For the latter, we show...
In mature neurons, postsynaptic NMDARs are segregated into two populations, synaptic and extrasynaptic NMDARs, which differ in localization, function, and associated intracellular cascades. These two pools are connected via lateral diffusion, and receptor exchange between them modulates synaptic NMDAR content (NMDAR-plasticity). Here, we identify the phosphorylation of the PDZ-ligand of...
Students pursue educational and career future identities (e.g., graduating college, becoming an engineer, etc.) that are tied to their deepest wants, desires, and needs, yet many find it difficult to exert self-control and resist temptations while pursuing these identities (e.g., studying versus watching TV, paying attention in class versus scrolling...
Judiciary at the Crossroads argues that a professional judiciary was able to restrain power, and thus lay the foundation for an independent judiciary and possible the rule of law later. Historical evidence comes from the performance of courts in property ordering projects launched by the governments in Taiwan and Manchuria...
Polycystic ovary syndrome (PCOS) is among the most common endocrine disorders of premenopausal women, affecting 5-15% of this population depending on the diagnostic criteria applied. It is characterized by hyperandrogenism, ovulatory dysfunction and polycystic ovarian morphology. PCOS is highly heritable, but only a small proportion of this heritability can be...
This dissertation takes up Islam’s relationship to Black nationalism across the Atlantic diaspora of Muslims that I call “the Fugitive Islamicate.” Scholars most often have described this relationship as commencing in the twentieth century with the rise of “Black Muslim religion,” a U.S. religious movement that begins with Noble Drew...
This dissertation is composed of three articles that focus on the electoral support coalitions of populist parties in Latin America. Using typologies, comparative-historical analysis, and experimental methods, the articles conceptualize and explain variation across several dimensions of these coalitions: their size and scope, their level of organization, and the identities...
Many species of rodents rely on the set of exquisitely sensitive facial vibrissae (whiskers) to guide rich behaviors in which other senses are inadequate. Although whiskers are, like all hairs, inert strands of keratin, they provide the animal with a rich landscape of tactile information which is used to guide...
Magnetic resonance imaging is a powerful research tool for studying anatomical processes in intact large organisms, as it is capable of generating high resolution images with unlimited penetration depth and excellent soft-tissue contrast. However one of the challenges faced by those seeking to use the technique to answer biochemical questions,...
Reducing the high incidence of metabolic syndrome especially among older people living in low income communities is a goal of the health system. Residents of the Austin community of Chicago suffer from a heavy burden of health issues related to metabolic syndrome leading to disproportionally higher morbidity and mortality rates...
The problem of theological normativity concerns the conflict between the purported eternal, universal, and ahistorical nature of Christian theological and ethical claims and the fact that such claims are always articulated in a particular time and place and, therefore, seem to bear the marks of cultural and historical contingency. My...
This dissertation explores the role and relation of capitalism in contemporary political life, with the aim to reveal the inherent oppression of what I refer to as capitalist culture. To this end, the project follows three main objectives: (1) to identify the widespread and pervasive nature of capitalist culture (2)...
Ultrafine particles are often used as lubricant additives because they can enter tribological contacts to reduce friction and protect surfaces from wear. They tend to be more stable than molecular additives under high thermal and mechanical stresses during rubbing. However, in lubricant oil, ultrafine particles tend to aggregate together to...
Franz Rosenzweig’s The Star of Redemption ranks as one of the most original and innovative works of the modern period. Thinkers as diverse as Buber, Benjamin, Levinas, Strauss and Derrida have all acknowledged its influence. Yet, there has not been any consensus on the book’s main objective or agenda. Some...
Polymers permeate almost all facets of modern life. For end use applications, these materials are typically processed into products at elevated temperatures under which molten polymers are subjected to flow. Particular interest lies in the flow-induced crystallization behavior of polymer melts under extensional flow, which is a flow type dominant...
This thesis consists of three projects, centered around the aim to better model real-world systems under uncertainty, specifically, under stochastic disruptions, using optimization. A stochastic disruption is a type of infrequent event in which the timing and the magnitude are random. We introduce the concept of stochastic disruptions and a...
Contactin associated protein like 2 (CNTNAP2) has emerged as a prominent susceptibility gene implicated in multiple complex neurodevelopmental disorders, including autism spectrum disorders (ASD), intellectual disability (ID), and schizophrenia (SCZ). The presence of seizure comorbidity in many of these cases, as well as inhibitory neuron dysfunction in Cntnap2 knockout (KO)...
Understanding how spin waves propagate through ferromagnets is an important component of a wider international effort to create spintronic devices. In this thesis, we develop a propagating spin wave spectroscopy to make a variety of measurements on thin films of Yttrium Iron Garnet (YIG), a material known for having long...
In this dissertation, I cover three different topics in macroeconomics. In Chapter 1, I explore the macroeconomic implications of an increase in business competition and its micro transmission channels. In Chapter 2, I document a rise in savings and cash holdings by non-financial corporations across advanced economies and show that...
The concealed information test (CIT) has garnered more empirical support than other methods of recognition detection and has a firm theoretical foundation. Because it occurs involuntarily, even when recognition is denied, P300 amplitude is a robust indictor of concealed information. Although the P300-based CIT shows great promise for field use,...
The tension-spoke bicycle wheel owes its stiffness and strength to a cooperative relationship between the rim and the spokes: the rim holds the spokes in tension to prevent them from buckling under external loads, while the spokes channel external forces to the hub and prevent the rim from becoming severely...
The structure of the North American crust and mantle was investigated using P wave teleseismic tomography and the links between seismic tomographic models, locations of volcanism, sediment isopachs, and continental scale crustal structures via plate reconstruction modeling. Nearly 50,000 teleseismic P wave delay times were measured from seismograms recorded by...
Infidel(itie)s of Colour: Unruly Black Bodies, Modernity and Performance in Post-Apartheid South Africa focusses on the ways that queer and feminist artists of colour draw upon their traditional black cultural heritage and spiritual practises as a means of laying claim to cultural citizenship and belonging in post-apartheid South Africa. I...
Clustered regularly interspaced short palindromic repeats (CRISPR) and their associated Cas proteins provide an immune-like response in many prokaryotes against extraneous nucleic acids. CRISPR-Cas systems are classified into different classes and types that vary widely in composition, target recognition, and overall mechanism. The main division of CRISPR-Cas systems occurs between...
The focus of this thesis is on evaluating, designing, and applying statistical methods that elucidate molecular mechanisms by seeking to understand the pathways that contribute to disease. Chapter 1 introduces the field and motivates the work in this thesis. Chapters 2, 3, and 4 describe original work. Chapter 5 recapitulates...
The halide perovskites AMX3 (A = large cation, B = Sn or Pb, and X = halide) have been the subject of intense investigation due to their outstanding optical and electronic properties, which have enabled high solar cell efficiencies thanks to a beneficial electronic structure and long charge carrier lifetimes....
Motor planning is fundamental to the performance of everyday reaching movements. The influence of planning is not limited to voluntary movements but extends to involuntary movements initiated in response to sensory stimuli, such as postural perturbations applied to the arm. Stroke alters voluntary reaching and the involuntary response to perturbations,...
This dissertation concerns the probabilistic aspects of diffusion processes generated by a family of differential operators, which is similar to the family of hypoelliptic Laplacian operators, acting on the tangent bundle of a compact Riemannian manifold. By lifting the processes to the product of the frame bundle and the euclidean...
Despite improvements to diagnostics and treatment methods, colorectal cancer remains the second leading cause of cancer death in the United States. Colonoscopies, the gold standard for colorectal cancer screening, can significantly increase the patient’s chance of survival through early detection. However, colonoscopy cost, surgical complications, and patient bowel preparations limit...
This dissertation is a wide-ranging study on real estate and the effect of financial constraints on economic activity. In the first chapter, I use granular data on home builder housing developments to provide new evidence that firms spread negative revenue shocks across projects via their internal capital markets. I analyze...
This dissertation explores the interrelationship between time, labor, and literature during the rise of British industrial capitalism. By tracing a tradition of social criticism from Percy Shelley to William Morris that runs through the Chartist movement, Thomas Carlyle, and Charles Dickens, it isolates and explicates a distinctive existential mood, or...
The physical boundary layer, or interface, between two different phases of matter is the site of chemical and physical processes that are critical to many research fields. Many of these interfaces contain electric charge, which influences the structure and composition of the interfacial region and the interactions between the interface...
Supported vanadium oxide materials have been extensively studied for alkane oxidative dehydrogenation (ODH) reactions due to their high activity and selectivity. The catalytic activity of supported VOx materials is influenced by the surface coverage of VOx sites and hence the distribution of V=O, V-O-V, and V-O-S (S, support) bonds. The...
The role of nuclei nanoenvironment in cellular function has been a challenging problem in biology due to the lack of chromatin 3-dimension (3D) structure imaging/capturing techniques and theory connecting physical structure of chromatin to transcription. Recent studies on optical properties measurement on biological sample techniques, nanoscale imaging techniques and chromatin...
Gene regulatory networks (GRNs) are important abstractions of the complex regulatory interplays between genes, proteins, metabolites, and other molecular-level entities. Comprehensive GRNs provide high-level overviews of the topology of gene-gene interactions and their purposes, thereby enabling a comprehensive understanding of their role in phenotypic variation, disease mechanisms, and other biological...
This dissertation examines the language of force in Robert Musil’s Der Mann ohne Eigenschaften (MoE) as a site of literary self-reflection. It investigates how the text employs a constellation of “force” terms – including not only the words Kraft, Energie, and Leistung, but also images of physical and chemical forces...
In this thesis we present methods for estimating network metrics via random walk sampling. More specifically, we generalize the Hansen-Hurwitz estimator and the Horvitz-Thompson estimator to estimate the shortest path length distribution (SPLD), closeness centrality ranking, and clustering coefficients of a network. Those are important metrics to a network, but...
Circuit-level Dynamic Timing Slack (DTS) has emerged as a compelling opportunity for eliminating inefficiency in modern low-power systems. This slack arises when all the signals have propagated through logic paths well in advance of the clock signal. When it is properly identified, the system can exploit this unused cycle time...
This dissertation is about three of Cicero’s notable projects in ideal theory in his middle and late periods (between roughly 54-43 BCE). It comes during a resurgence in interest in Cicero’s contributions as a philosopher. First, I discuss Cicero’s philosophical account of vera gloria (true glory) in contradistinction to mere...
This dissertation proposes an oracle efficient estimator in the context of a sparse linear model. Chapter 1 introduces the penalty and the estimator that optimizes a penalized least squares objective. Unlike existing methods, the penalty is differentiable – once, and hence the estimator does not engage in model selection. This...
Rationally assembled nanostructures exhibit distinct physical and chemical properties beyond their individual units. The development of nanofabrication tools enables precise structural defining of nanomaterials scalable to large areas. This dissertation focuses on plasmonic nanoparticle arrays that show unique diffractive coupling with lattice spacings engineered close to the wavelength of light....
In this thesis, we study pushforwards of canonical and log-pluricanonical bundles on projective log canonical pairs over the complex numbers. We partially answer a Fujita-type conjecture proposed by Popa and Schnell in the log canonical setting. Built on Kawamata’s result for morphisms that are smooth outside a simple normal crossing...
Cells are complex, autonomous machines that integrate many environmental cues to execute a desired response. Though this property makes cells versatile, it presents significant design challenges when, to treat diseases, we must alter cellular responses. To understand changes to the complex regulatory pathways that cause diseases, studies often investigate the...
This dissertation analyses the ways in which football, known as soccer in the United States, has historically served as a diasporic space for the articulation of black politics in the second half of the twentieth century. While modern sport is characterized as an apolitical cultural practice, I am interested in...