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Drifts Analysis Of Acetone Oxidation On Ceo2 And Ag/Ceo2, Massimo Ruscitti

Graduate Masters Theses

The catalytic elimination of volatile organic compounds (VOCs) is a critical objective in environmental remediation, as prolonged exposure to these pollutants severely hazards ecological and public health. Acetone is one of the most common industrial and laboratory solvents, making its complete mitigation through heterogeneous catalytic combustion a primary area of focus. This work presents an in-situ investigation into the surface chemistry of acetone adsorption and its subsequent thermocatalytic oxidation on CeO₂ and Ag/CeO₂ nanoparticle catalysts. Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) was utilized on the catalysts under high vacuum conditions to observe changes in the surface species …

Toward The Study Of Photon Dynamics In Non-Separable Spacetimes, Kara Nelson

Graduate Masters Theses

Black holes provide a unique laboratory for testing general relativity in the strong-field regime through observations such as black hole images and gravitational wave signals. Comparing theoretical predictions with these observations requires accurate numerical models of photon trajectories. This thesis develops and validates a generalized ray-tracing framework for computing null geodesics in stationary, axisymmetric spacetimes. Unlike many existing ray-tracing methods, the framework does not rely on metric separability or analytic solutions, allowing it to be applied to both separable and non-separable spacetimes. The framework is validated by reproducing known Schwarzschild and Kerr results and is applied to a quasi-Kerr spacetime …

Synthesizing Viscoelasticity: Living Polymers, Micro-Macro Relations, And Paths For Resolution, Adam M. Hasler

Graduate Masters Theses

This thesis investigates the relationship between macroscopic rheological signals and underlying microscopic dynamics in complex fluids, specifically focusing on ”living polymers” within the cetyltrimethylammonium bromide (CTAB) and sodium salicylate (NaSal) surfactant system. The research addresses the inverse parameterization problem, demonstrating how bulk measurements like zero-shear viscosity can mask fundamentally different physical topologies, such as purely cylindrical, reptating micelles versus highly branched networks. Through the successful synthesis of viscoelastically ”degenerate” samples, the study utilizes an array of characterization techniques including frequency sweeps, Large Amplitude Oscillatory Shear (LAOS) to resolve these unique underlying states. Furthermore, the work explores further avenues of study …

Beyond Monolithic Narratives: The Interaction Of Ethnic-Racial Socialization And Resistance In Shaping Mental Health Among Black Immigrants In The U.S., Krystel Francis

Graduate Masters Theses

Black immigrants represent one of the fastest-growing segments of the U.S. Black population, yet their unique racialized and cultural experiences remain understudied within psychological research. This thesis examined how ethnic-racial socialization and resistance and empowerment against racism can influence how race-related stress was associated with psychological distress among Black immigrants in the United States. This study tested a moderated moderation model to determine whether ethnic-racial socialization and resistance and empowerment against racism, independently and jointly, buffered the adverse effects of race-related stress on psychological distress. Using data from a larger IRB-approved study on racism and mental health among people of …

Microrheological Characterization Of Collagen-I Extracellular Matrix Remodeling During Tr146 Tumor Spheroid Invasion And Ppix-Mediated Photodynamic Therapy, Himantha Dilshan Saldonge

Graduate Masters Theses

Oral squamous cell carcinoma (OSCC) invasion is strongly regulated by interactions between tumor cells and the surrounding extracellular matrix (ECM). However, localized ECM mechanical changes during tumor invasion and after photodynamic therapy (PDT) remain insufficiently understood. This study mainly investigated: time-dependent viscoelastic remodeling of collagen-I ECM during TR146 tumor cell invasion, visualization of time-dependent TR146 tumor cell invasion and post-PDT response using live/dead fluorescence imaging, and the direct effect of PpIX-mediated PDT on the viscoelastic properties of spheroid-free collagen-I ECM. Three-dimensional TR146 spheroids were generated using a non-adherent agarose-based method, surrounded by a basement-membrane-like Matrigel layer, and embedded in 3.0 …

Symmetry Breaking And Restoration In The Grasshopper Ising Model, Aradh Bisarya

Graduate Masters Theses

Distance-selective interactions in Ising systems give rise to a range of rich and unexpected phenomena. A notable example is the so-called Grasshopper Ising model, a conserved spin Ising model with interactions only between spins at a fixed distance. This model is the discrete version of the following mathematical problem: A grasshopper lands at a random point on a planar lawn of area one. It then makes one jump of fixed distance in a random direction. What lawn shape maximizes the probability that the grasshopper lands on the lawn after the jump? The solution to this problem, corresponding to the ground …

Symmetric Informationally Complete Positive Operator Valued Measures Minimize P-Norm Difference Between Quantum And Classical Probability Rules, Austin Monaghan

Graduate Masters Theses

Experimental violations of Bell's inequality demonstrate quantum theory's incompatibility with a local hidden-variable formulation. Simply put, either 1) measurements performed at one point in space may instantaneously influence far away systems ("spooky action at a distance") or 2) measurement outcomes are not the result of pre-existing properties. The act of measurement takes part in the very creation of the outcomes. If we reject condition 1 as a valid assumption, how can we interpret the significance of condition 2 i.e. no local parameters?  In QBism, condition 2 arises from something deeper: that the Born rule expresses a nonclassical condition for connecting …

Data Curation And Integration For Cancer Cell Line Pharmacogenomics Analysis, Meric Kinali

Graduate Masters Theses

Cancer cell lines are essential resources for connecting genomic and molecular features with drug response and identifying biomarkers. Therefore, large-scale cancer cell line resources have been growing, but this introduces challenges such as data standardization, consistent annotation, matching identifiers, cross-database integration, and a reproducible computational framework. CellMiner Cross Database (CellMinerCDB) integrates pharmacogenomic datasets from multiple resources and provides a standardized analysis of cell lines across datasets. This thesis examines cancer cell line cross-databases and their importance in pharmacogenomics, with a particular focus on CellMinerCDB. As part of this work, I developed an R package for the gCSI (Genentech Cell Line …

Infrared Detectability Of Whale Species And Behaviors To Enhance Automatic Detection For Real-Time Vessel Strike Avoidance, Laura J. Howes

Graduate Masters Theses

Real-time detection of large whales at sea is critical for mitigating serious injury and mortality from ship strikes and other human activities such as seismic surveys, especially for endangered species such as the critically endangered North Atlantic Right Whale (Eubalaena glacialis). Traditional marine mammal observers are limited by environmental conditions and human factors, necessitating a robust, 24-hour solution. This study investigates the efficacy of a novel onboard detection tool infrared (IR) technology to detect whale blows and body parts. While IR is a promising advancement, its performance under varying sea conditions (e.g., fog, humidity) and its ability to …

Electrolyte Development And Interfacial Reactions At Multivalent Metal Anode For Next Generation Energy Storage Systems, Leslie Gates

Graduate Masters Theses

The increasing demand for safe, sustainable, and high-performance energy storage systems has driven significant interest in multivalent-ion batteries, including aluminum, magnesium, and zinc-based systems. These technologies have attracted attention due to their high theoretical energy densities, natural abundance, low cost, and environmentally benign nature. However, their development remains hindered by a limited fundamental understanding of electrolyte development and interfacial processes at the electrode–electrolyte interface, where complex electrochemical interactions govern battery performance and stability.

This thesis investigates electrode–electrolyte interactions in both a novel aluminum electrolyte and divalent magnesium and zinc systems. Beginning with the development and characterization of a novel aluminum …

Effects Of A Shame-Focused Self-Compassion Writing Intervention In Individuals With Social Anxiety, Selen Amado

Graduate Doctoral Dissertations

The present study examined the efficacy of a brief, shame-focused self-compassion (SF-SC) writing intervention in reducing shame, social anxiety and related cognitive maintenance processes among individuals with elevated social anxiety. Shame is a core feature and maintaining factor of Social Anxiety Disorder (SAD), closely linked to self-focused attention, post-event processing, and self-criticism. Additionally, self-compassion demonstrates a robust inverse association with shame. However, few interventions have explicitly targeted shame as a primary mechanism of change using self-compassion strategies in socially anxious populations. Using a randomized controlled design, 94 participants with elevated levels of social anxiety and shame were assigned to either …

Effect Of Vocational Training Programs On The Mental Health Of Indian Women Living In Contexts Of Urban Poverty (Or Urban Slums), Sriramya Potluri

Graduate Doctoral Dissertations

Women living in contexts of urban poverty (IWLCUP) experience disproportionately high rates of psychological distress, yet their mental health needs remain largely underrecognized. Beyond individualized explanations, broader ecological perspectives situate these women’s distress within previously underemphasized macrolevel forces and acknowledge the role of inequity and related structural disparities (e.g., economic, sociocultural, political etc.) in their oppression and disempowerment, thereby contributing to increased psychological vulnerability. Such frameworks call for intervention efforts that reduce individual psychological risk by addressing structural determinants proximally and distally impacting the lives of IWLCUP. Specifically, targeting poverty and economic insecurity might drive positive downstream effects that ultimately …

Cultural Responsiveness: Examining Assessments Of Therapists For Ethical And Clinical Outcomes (Create Clout), Tsotso T. Ablorh

Graduate Doctoral Dissertations

The Multicultural Counseling Competencies (MCC) and Multicultural and Social Justice Counseling Competencies (MSJCC) are well-researched and supported counseling practices for decreasing microaggressions in therapy and consequent attrition, lack of satisfaction, and maltreatment (Ratts et al., 2016; Sue et al., 1982). However, scholars critique existing methods for measuring therapists’ cultural responsiveness for being disconnected from therapeutic process and outcomes (Hays, 2020; Wilcox et al., 2020). This study examined which MSJCC measures associated with variables clinically and ethically relevant to better treatment outcomes and lower microaggressive, neglectful, and stereotypical treatment for hypothetical Black, female clients by White therapists. 62 White psychologists in …

Informationally Complete Measurements In Quantum Theory: Implementation, Geometry, And Correlations, Sachin Gupta

Graduate Doctoral Dissertations

Informationally complete measurements provide a bridge between the operational and geometric structure of quantum theory. They allow quantum states to be reconstructed from measurement probabilities. This thesis studies informationally complete measurements from two complementary perspectives: their physical implementation and their role in the probabilistic reconstruction of quantum theory.

The first part develops a symmetry-driven Naimark extension for rank-one Weyl- Heisenberg covariant Projective Operator-Valued Measures (POVMs) in arbitrary finite dimension. Since every element of such a POVM is generated from a single fiducial state by the Weyl-Heisenberg displacement operators, the full measurement inherits a strong covariance structure. We show that this …

Motor Imagery Eeg Decoding For Brain-Computer Interfaces: Structured Representation, Transfer, And Drift, Yiming Shen

Graduate Doctoral Dissertations

Motor imagery EEG decoding is often summarized by the accuracy of a final classifier, but the classifier is only the last stage of the pipeline. Before classification, the signal has already been shaped by preprocessing, feature extraction, source-session organization, and adaptation. This dissertation studies how feature representation, source-session transfer, and drift shape reliable MI-EEG decoding for brain-computer interfaces.

It first studies within-session decoding on public MI-EEG datasets using nested validation that keeps preprocessing, feature fitting, and model selection inside the training folds. This analysis separates gains from feature representation from gains due to nonlinear classification, and relates both comparisons to …

The Grasshopper's Journey To The Bloch Sphere, David Llamas

Graduate Doctoral Dissertations

The Grasshopper Problem asks a simple geometric question. A grasshopper lands on a lawn of fixed area and jumps a fixed distance in a random direction. What shape of lawn maximizes the probability that the grasshopper remains on the lawn after jumping? The jump rule is rotationally symmetric, but the best lawns do not have to be. This dissertation studies how that symmetry breaking occurs, maps the continuum problem to a novel constrained spin system, and uses the spherical Grasshopper Problem to compare quantum singlet correlations with classical local models.

For planar lawns, boundary-integral and perturbative calculations explain why the …

Gendered Precarity, Informality And Survival Among Cambodian Women Migrants In Thailand, Sokha Eng

Graduate Doctoral Dissertations

Migration scholars have long assumed that women migrant laborers move as individuals, leave family behind, are governed by labor migration policies, and are employed full-time. However, in the context of South-South migration, many workers migrate as families, with husbands, wives, and sometimes even children. Some engage in the informal economy, serving as casual and on-call workers. These types of employment fall outside the scope of standard labor migration policies and therefore receive less attention. As a result, migrants’ experiences in such work arrangements remain underexplored. This study examines the experiences of Cambodian migrant women in Thailand by examining the case …

The Role Of Critical Professional Development In Transforming The Teaching And Learning Practices Of White Faculty: Elevating Racial Consciousness To Center Equity, Kaitlyn E. Siner-Cappas

Graduate Doctoral Dissertations

The purpose of this study was to explore the experiences of white faculty participants in a critical professional development (CPD) program that seeks to enhance racial consciousness at a public research university. The goal of the study was to understand any perceived changes in faculty positionality and teaching and learning practices following their participation in the program, as well as identify the extent to which the program supported participants in a journey towards enhanced racial consciousness.

Four themes characterized the experiences of faculty participants in this CPD program: 1) experiencing the benefits of a learning community, 2) gaining confidence in …

Redesigning Quantum Theory, Matthew Weiss

Graduate Doctoral Dissertations

QBism understands quantum mechanics to be probability theory supplemented by additional nonclassical coherence conditions. In this dissertation, we develop these nonclassical coherence conditions from first principles, emphasizing the role of a well chosen reference measurement. After treating standard probability on subjective Bayesian lines, we demonstrate an equivalence between the QBist approach and the existing framework of generalized probabilistic theories. We show that the fundamental nonclassical coherence relation may almost always be taken to be a gentle modification of the law of total probability, and give a coherentist account of when an experimental scenario has a classical explanation. Finally, we show …

Traversing The Broken Staircase: The Experiences Of Academic Neglect For Black & Brown First-Generation College Students, Kashmeel D. Mckoena

Graduate Doctoral Dissertations

Although Black and Brown students are diversifying college campuses and opening doors for their families as new cohorts of first-generation collegians, they often find themselves silently dealing with the aftermath of academic neglect from U.S. secondary education. This phenomenon can be understood from extant literature as absence of reliable guidance, mentorship, resources, and support that help students persist and succeed in their academic goals. Existing explanations of grit and resilience (Duckworth et al., 2007) not only erase the existence and impact of academic neglect, but also mask the creative solutions and compensatory strategies that Black and Brown first-generation college students …

A Statistical Mechanics Approach To Reinforcement Learning, Jacob Adamczyk

Graduate Doctoral Dissertations

Reinforcement learning (RL), the study of optimal decision-making over long timescales in stochastic systems, has recently seen remarkable advances due in large part to the efforts of the deep learning community. RL has witnessed great success in solving problems in video games, robotics, biological control, and language modeling. However, a unified statistical mechanics framework to understand and develop the corresponding algorithms is lacking. To address this issue, we begin by showing that the reinforcement learning problem can be formulated and solved using the tools of statistical mechanics. Drawing on physical principles of free energy minimization and invariance, we address important …

Process And Change In The Global Governance Of Sustainable Development, Sarah B. Fascitelli

Graduate Doctoral Dissertations

In 2015, to euphoric acclaim, the world adopted the 2030 Agenda for Sustainable Development. But with less than five years to deliver its seventeen Sustainable Development Goals (SDGs), the Agenda’s “transformational vision” remains unrealized. To understand why, this dissertation looks not to the Agenda’s implementation but to its birth, asking how the three-year process that produced it was designed, implemented, and experienced, and whether its mechanisms reinforced or challenged the structures that shape global sustainability governance. The premise is simple: how global agreements are negotiated matters as much as their substance. The study thus pushes back against a celebratory view …

Social Experiences Of Chinese International Students At A Us Liberal Arts College, Ke Yao

Graduate Doctoral Dissertations

This study provided detailed empirical evidence on social experiences of Chinese international students within a US liberal arts college context through examining their race, culture, gender, social class, and mental health experiences. This study showed that the experiences of Chinese international students in the US higher education institutions are influenced not only by individual adaptation but also by broader social and institutional contexts. First, findings of this study demonstrated that institutional features of liberal arts colleges, such as small campus environment, residential nature, and more interactive opportunities between domestic and Chinese international students, can simultaneously create opportunities for inclusion and …

A Discursive Analysis Of Lesbian And Queer Experiences Of Unwanted Consensual Sex, Sarah E. Swanson

Graduate Doctoral Dissertations

This study drew on a critical discursive psychology (CDP) analytical approach to examine how lesbian and queer participants made sense of unwanted consensual sex (UCS).  The data analysis traced how UCS was constructed on three discursive levels: the construction of UCS across narratives, the interpretive repertoires mobilized (including sexual scripts), and the broader sociocultural discourses that shaped what elements of their experiences were intelligible. Therefore, I sought to understand both how participants drew on familiar heteronormative and queer ways of talking about sex and how various discursive resources shaped how they could construct themselves and others. Data for this research …

Factorial Structure Of A Bilingual Progress Monitoring Tool For Mindfulness Interventions, Andrea V. Molina Palacios

Graduate Doctoral Dissertations

Mindfulness-based interventions (MBIs) are an increasingly popular option for schools to support youth in each of the multi-tiered systems of support (MTSS). MBIs have proven to increase attention, help with emotion regulation, decrease symptoms of anxiety and depression, and overall increase students’ wellbeing with a cost-effective package that makes it affordable for schools to implement. Moreover, MBIs have also proven to be effective for Hispanic youth who are at a higher risk of experiencing low access to mental health care and higher levels of poverty, which puts them at risk for dropping out and having low academic achievement. However, there …

The Anti-Racist Organization? Power, Embodiment, And The Politics Of Becoming, Patricia Tiimah Naya

Graduate Doctoral Dissertations

Why do organizational justice commitments so rarely produce structural transformation, and what happens to the people who take them seriously? This dissertation addresses that question through a longitudinal qualitative study of Aequitas University, a large public urban research institution in the northeastern United States, during a multi-year attempt to become “anti-racist.” Drawing on 129 semi-structured interviews with 115 organizational members, 7 focus group discussions, four years of field observation, and an archival corpus spanning more than a decade of institutional history, the dissertation examines how justice commitments move through organizations over time. Justice commitments do not simply succeed or fail. …

Genomic Based Environmental Health Assessment: Vieques, Puerto Rico, Valeria Hernandez Talavera

Graduate Doctoral Dissertations

From 1941 to 2003, the United States Navy and North Atlantic Treaty Organization (NATO) used Vieques, Puerto Rico, for military training, which led to long-term pollution from metals, organic chemicals, explosives, and per- and polyfluoroalkyl substances (PFAS). While earlier research found these contaminants in the environment and in living organisms, their combined effects on local ecosystems remain poorly understood.

This dissertation used a Genomic-Based Environmental Health Assessment (GEHA) framework to study the ecological risks from past military pollution in Vieques. The approach combined sediment toxicity tests, chemical analysis, gene expression studies, microbial community analysis, and community-based research. The four main …

From Structure To Experiences: How Facility Capacity And Staffing Shape The Adoption And Impact Of Lgbt-Affirming Policies In Long-Term Care, Andrew Alberth

Graduate Doctoral Dissertations

Long-term care (LTC) settings – including nursing homes (NHs) and assisted living facilities (ALFs) – provide necessary care for individuals with extreme health and functioning limitations. Sexual and gender minority (LGBT) older adults report challenges receiving effective, person-centered care LTC. Some LGBT older adults may hide their sexual orientation and gender identity when entering LTC settings or delay seeking needed LTC fearing discrimination from staff and other residents. Furthermore, staff in LTC settings indicate little awareness of LGBT-residents and possess inadequate LGBT-cultural competency necessary for providing person-centered care. Therefore, LGBT-residents LTC experiences remain underexplored in the broader research. Adopting LGBT-affirming …

“School’S Not For Me. I Don't Belong In School.”: Students With Dis/Abilities’ Perspectives On Special Education During State Intervention, Leila E. Parks

Graduate Doctoral Dissertations

This qualitative study presents the lived experiences of 10 racialized teens with dis/abilities who received special education services in the Boston Public Schools during state intervention. As a youth participatory action research collective, the young people in the study’s Youth with Dis/Abilities Research Group explored issues of inclusion and exclusion, ableism, racism, and safety at school. The project was framed by dis/ability critical race studies, incorporating aspects of critical race theory and disability studies in education. Based on stories expressed through free-writes, poetry, drawings, interviews, and group conversations, the racialized teens with dis/abilities shared negative school experiences overall. Though most …

Identifying Discrete Reappraisals And Examining The Properties Of Cognitive Reappraisal That Predict Emotional Outcomes, Jenny L. Wu

Graduate Doctoral Dissertations

Cognitive reappraisal is widely regarded as an adaptive emotion regulation strategy and a central strategy to promote cognitive change in psychological treatments. However, findings regarding its effectiveness have been inconsistent, potentially due to the tendency to conceptualize reappraisal as a uniform process. The present study sought to adopt a more fine-grained, process-oriented approach by examining variability in how reappraisal is implemented. Specifically, this study investigated (1) the overall effectiveness of cognitive reappraisal, (2) whether the perceived believability of reappraisals predicts emotional outcomes, and (3) whether different types of reappraisals are associated with differences in emotional outcomes. Participants completed a modified …