Platyrrhines are an enigmatic and intriguing radiation of New World monkeys that currently inhabit the western hemisphere from Argentina to Mexico. Platyrrhini, a taxonomic parvorder within Primates, is their formal taxonomic designation, as they represent the sister group of the Catarrhini or all of the Old World monkeys and apes....
Pressure swing adsorption (PSA) is a promising technology for carbon capture and sequestration (CCS). However, while there has been much interest in PSA process development, the choice of adsorbent for the separation is just as important as the process configuration. Therefore, it is important to develop PSA processes in conjunction...
This dissertation seeks to investigate how social policy is made and implemented where established scripts and institutionalized schemas do not align with complex subjects and cases: how do policymakers classify subjects and cases when they cannot default to established categories, what are the implications of engagement in forms of evaluation...
Like the majority of media studies, research on Latinx media is characterized by a focus on a single medium. As an alternative, this dissertation provides a media ecology of the city's Latinx mediascape between the years 1953 and 2012. This dissertation investigates four case studies: (1) Univision's former television affiliate,...
The dissertation illuminates the centrality of communication to the way environmental policies and practices arise and unfold, and it shows how the living materiality of ecological phenomena are entangled with the social dynamics of communication. The work innovatively bridges insights from the field of political ecology with theory and method...
This work presents a cognitive model of argument structure construction acquisition and application based on analogy. The claims of this model are that (1) constructions, pairings of form and meaning, are a productive unit of linguistic analysis that account for a broader range of phenomena than traditional approaches; (2) human...
Carbon-based materials, such as graphene and carbon fibers, have good prospects for applications in reinforcements of polymers as advanced structural composites. Hence, the study of the mechanical properties of the constituents and the composites is becoming increasingly popular in both academia and industry.', 'Graphene has been shown to have a...
This dissertation develops computational models to study the optical coupling between plasmonic nanoparticles and quantum emitters. A large number of nanophotonic applications function by using either plasmon enhanced fields to enhance optical processes within quantum emitters or the sensitivity of plasmon resonances to their environment. Developing computational methods to fully...
Currently, the only treatment for end stage liver disease is transplantation, of which there is a critical shortage of available donor tissue. Recent developments in 3D printing have greatly accelerated progress in the field of liver tissue engineering. A variety of 3D printing and additive manufacturing techniques show great promise...
Perovskite oxide materials for the wide array of properties that make them candidate materials for application ranging from catalysis, to electronics, to beyond-Moore computation. As many of these oxides share similar structures they can be combined in a seemingly-endless number of ways to produce the desired properties for a given...
When constructing buildings with basements in urban areas, the deformation levels during the excavation process must be carefully evaluated to prevent or minimize damage to adjacent structures. Because of uncertainties in predicting ground deformations during the design phase for a project, a robust monitoring program should be included in significant...
The use of biomass as a feedstock for fuels and chemicals has been a long-standing challenge and opportunity for the chemical and basic materials industries. In order to unlock the value of biomass, it is necessary to first deconstruct its structural polymers, cellulose, hemicellulose, and lignin, into low molecular weight...
Nonlinear optical (NLO) effects are used universally in modern day telecommunication and form the foundation of emergent photonic technologies. Twisted intramolecular charge transfer (TICT) chromophores, composed of a donor and acceptor fragment connected by a twisted bi-aryl bridge, combine large molecular NLO response with properties such as transparency in the...
Bimetallic polymerization catalysis represents a small, though active, area of research due largely to the interesting properties observed in the resulting product polymers, including higher molecular weight, increased comonomer incorporation, and enhanced tacticity. Current work is focused on furthering an understanding of the active catalytic species that give rise to...
Segregation of granular materials with different particle properties (e.g.,~size and density) is a ubiquitous phenomenon in nature and industry. In this thesis, different segregation mechanisms are studied in steady granular heap flows. Flow kinematics and segregation in transient granular flows are also explored. ', '\t', 'First, this thesis studies segregation...
The assembly of nanoscale building blocks into larger ensembles with well-defined architecture has the potential to create entirely new classes of designer photonic and plasmonic metamaterials with unique properties not found in nature. Electromagnetic metasurfaces, or 2D metamaterials, operating at optical wavelengths are of particular interest due to ease of...
This dissertation is a collection of three essays that study (dynamic) incentive provision in multi-agent settings with asymmetric information: delegation of projects in organizations, dynamic matching on a platform, and arbitration between partners in a dispute.', "The first chapter studies dynamic delegation of heterogeneous projects to agents with diverse capabilities....
Mixed oxides including SiO2', 'and supported oxides on SiO2', 'comprise the majority of', 'heterogeneous catalysts employed in the chemical industry. SiO2', '-Al2O3', 'and microporous,', 'crystalline variants called zeolites have been used widely since the 1960s in petroleum', 'processing, commodity chemical production, and fine chemical synthesis [1]. SiO2', 'supported', 'TiOx catalysts...
A vast portion of the Universe is predicted to consist of an as-of-yet undetected, non-luminous form of matter, known as dark matter. Evidence of its existence has been corroborated by various astrophysical observations at many cosmological scales, and its relative abundance has been determined. However, knowledge of its nature and...
Of the half million new cases of invasive cervical cancer (ICC) reported globally each year, over 80% occur in Low-and Middle-Income Countries (LMICs)1. Nigeria is one of these countries with a huge burden of ICC incidence and mortality.2 As reported in the Global Burden of Cancer 2013, cervical cancer is...
The thermodynamics and kinetics of electron transfer reactions in catalysis, energy conversion and storage, and plasmon-driven chemistry depend strongly on nanoscale electrode surface structure. To elucidate the structure-function relationships that determine nanoscale electrochemical reactivity, it is necessary to observe electron transfer reactions one molecule at a time. Over the past...
Mounting evidence indicates that known schizophrenia susceptibility genes regulate dendritic spines supports the model that perturbations in the molecular network underlying spine plasticity are crucially involved in the pathogenesis of schizophrenia. The Rac1- and RhoA-guanine nucleotide exchange factor (GEF) kalirin is critical for spine morphogenesis on cortical pyramidal neurons, and...
Biopolymers are polymers synthesized by living organisms. Depending on the monomeric units, biopolymers can be classified as polynucleotides (e.g., DNA and RNA), polypeptides (e.g., protein), polysaccharides (e.g., cellulose) and so on. Biopolymers not only play an essential role in nature, but also have wide applications in various fields of industry...
RNA-Sequencing (RNA-Seq) is a powerful high-throughput tool to profile transcriptional activities in cells. The observed read counts can be biased by various factors such that they do not accurately represent the true relative abundance of mRNA transcript abundance. Normalization is a critical step to ensure unbiased comparison of gene expression...
This dissertation presents research on solid oxide fuel cell (SOFC) cathodes. It specifically covers two main topics: the electrochemical performance of porous two-phase composite cathodes, and the degradation mechanisms of porous single-phase mixed conducting cathodes. Current-voltage measurement and electrochemical impedance spectroscopy were used extensively to evaluate the cell performance. The...
Self-assembly is an important process in biological system to build various bioactive structures from small amphiphilic molecules. The structural versatility of amphiphile self- assembly also provides a unique platform for the design of functional soft materials with controllable structural features. However, little is known about the correlation between external stimuli,...
Ultrafast, multi-dimensional coherent spectroscopy (MD-CS) has enabled scientists to probe fundamental aspects of chemical and photo-physical reactions on the nanosecond to femtosecond timescales. Using MD-CS, scientific contributions ranging from increased understanding of energy transfer in photosynthetic biological proteins to correlating the motion of electrons in semiconductors have been achieved. Concurrent...
One of the main drivers of complexity in a service system is the dependence between different random variables describing the system. For example, the queue lengths at different time points and the waiting times of different items (jobs, customers) in queue are strongly dependent. To reduce dependence-related complexities, it is...
Patterning hierarchical structures in three-dimension (3D) has created nature-inspired functional surfaces. Gecko feet structures have been mimicked for reversible adhesive properties, shark skin for reduced drag, and lotus leaves for self-cleaning surfaces. Rational design of out-of-plane patterns across multiple length scales is crucial because each micro- and nano-feature has different...
My dissertation consists of two chapters that empirically study policy-related questions in applied microeconomics by using structural econometric modeling developed in industrial organization. In the first chapter, I study the welfare effects of a cap-and-trade program. I develop an equilibrium framework that incorporates forward-looking behavior and transaction costs. In the...
The ability to efficiently sense and respond to molecular signals is crucial for any organism's survival. Sensitive, specific and timely, microbial sensing systems provide an excellent starting point for the engineering of single-celled organisms to detect new molecules of human interest. Towards this goal, our lab pursues the engineering of...
The objective of this work has been the design of new lubricant additives to target friction in the boundary lubrication regime and the hydrodynamic lubrication regime. Modern automotive engines operate at higher temperatures and speeds than ever before, and therefore require new and more effective lubricant additives to meet higher...
Chapter 1: Product Market Strategy and Capital Structure: Evidence from Resale Price Maintenance', "This paper studies how a firm's pricing strategy affects its financial leverage. Retailers vary in pricing strategy, ranging from low markup (i.e., ``discount''), no frills retailers to high markup retailers that offer extensive service. The choice of...
Spherical nucleic acids (SNAs) are a class of structures composed of spherical nanoparticle cores that are densely functionalized with radially oriented, linear DNA. SNAs exhibit properties that are distinct from those of their linear counterparts. These constructs can readily enter cells, evade nuclease degradation, and bind complementary DNA targets with...
Self-assembled monolayers as tunable chemical platforms broadly enable the study of the interaction between biological species and synthetic surfaces. Unlike small molecule chemistry where the freely diffusible product can interact with biological targets as an inhibitor or probe, interfacial chemistry allows for the controlled and multi-valent presentation of ligands to...
Research on rat whiskers offers knowledge in neuroscience analogous to humans\' sense of touch and inspiration for efficient sensing robotics. The present work investigates the rat whisker system from a mechanical engineering perspective. First, key quasi-static and dynamic properties were quantified in Chapter 2 for individual whiskers in an array,...
A spokesman for the American Revolution, John Adams, famously claimed that a third of colonists supported independence, a third supported Britain, and a third remained neutral. Since then historians have struggled to understand the mixed loyalties of the Revolutionary generation.
"The Popular Politics of Loyalism During the American Revolution, 1774-1790,"...
This dissertation explores topics in information economics. A particular focus in this dissertation is how competition affects incentives for information acquisition and information sharing between competitors. The first chapter studies a principal-agent setting where two principals compete for the services of one agent. The second chapter studies how competition in...
Drawing on over 400 legal decisions and other documentary materials, 40 semi-structured interviews with legal and scientific actors, and hundreds of hours of multi-sited ethnographic observation, I offer a fine-grained analysis of how expert evaluative practices become institutionalized in legal settings and result in divergent understandings of sexuality within the...
Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels are expressed in the heart and central nervous system where they regulate membrane excitability. Recently, inhibiting HCN channels in the hippocampus has been identified as a possible therapeutic intervention for the treatment of Major Depressive Disorder (MDD). However, based on the high expression level of...
Distance learning has increased its presence in academia, and there is a growing trend among higher education music schools to utilize distance learning in tandem with a traditional curriculum. Many instrumental pedagogues do not understand the benefits even though distance learning has been used for close to twenty years in...
From 2008 to 2019, a range of new interactive and immersive digital formats that present new possibilities for musical and artistic expression have become available. In order to begin the work of uncovering what new compositional and experiential possibilities are now possible, this document will examine each format’s core concepts...
The saxophone has long been an instrument at the forefront of new music. Since its invention, supporters of the saxophone have tirelessly pushed to create a repertoire, which has resulted today in an impressive body of work for the yet relatively new instrument. The saxophone has found itself on...
This document will examine the influence of sacred, Latin, polyphonic, Tudor, choral composition on the compositional style of contemporary British composer, Gabriel Jackson. This examination will lead to an acknowledgement and discussion of the larger trend in 21st-century choral music to incorporate older compositional models into new works.
The impetus...
Significant deviations in the glass transition temperature (Tg) of nanoconfined polymer films from the bulk have been studied for over twenty years with the focus on high molecular weight (MW), linear polymers. This thesis explores low MW polymers, which represent an important class of materials widely used as coatings, detergents,...
Personality traits and personal values represent individual differences that influence many forms of behavior including psychopathology (Hanel & Wolfradt, 2016; Jarden, 2010; Ozer & Benet-Martinez, 2006; Schwartz, 2006). Extensive research has highlighted the importance of personality traits in the development of psychopathology in children. However, the association between values and...
This dissertation focuses on policy issues in the area of Economics of Innovation. As developed countries are becoming increasingly reliant on innovation for economic growth, it is important to enhance our understanding of how public policies affect innovation.
The first chapter examines the effect of government research grants on firms'...
Charge-containing polymers have received considerable attention for many decades, as these polymers combine the flexibility of polymer chains with electrochemical properties of the ions to provide a highly tunable, chemically and mechanically versatile class of materials. These materials have found use in energy conversion devices, high-density energy storage devices such...
Modern cosmological simulations are some of the world's largest and most demanding numerical computations that are run on state-of-the-art supercomputers. The codes use N-body and mesh-based methods in gravity-only solvers, and both Lagrangian and Eulerian schemes to model gas dynamics. Even complex astrophysical effects such as of star formation and...
Shared emotions are associated with thriving in relationships (Anderson, Keltner & John, 2004; Gonzaga, Campos, & Bradbury, 2007), and greater liking for new individuals (Larson & Gardner, 2015). However, the psychological mechanisms underlying this phenomenon are not well-understood. Emotions are fleeting experiential states and, seen through this lens, finding someone...