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Predictors Of Leadership Self-Efficacy: Racial Identity-Related Ideological Values, Racism-Related Stress, And Resilience Among Asian American Educators In K-12 Schools, Chong Lor

Doctoral Dissertations

The purpose of this study was to explore the underrepresentation of Asian American educators in K-12 leadership and the limited leadership pipeline available to them. Specifically, this study examined the extent of the relationships between Asian American racial identity-related ideological values (AARIIV), Asian American racism-related stress (AARRS), resilience, and leadership self-efficacy (LSE) among Asian American educators in K-12 schools.

This study was grounded in three theoretical perspectives—AsianCrit, the Racial Triangulation of Asian Americans, and Social Cognitive Theory—that provided the theoretical rationale for examining the racialization of Asian Americans in relation to leadership. This theoretical foundation guided the development of the …

What Are You?: The Impacts Of Salient Relationships And Monoracist Experiences On Multiracial Individuals’ Well-Being, Annika E. Duquet

Doctoral Dissertations

The multiracial population is one of the fastest growing groups as interracial partnerships continue to rise (Lee, 2008). This dissertation focused on multiracial Indian and white individuals and explored the processes of developing one’s identity and social relationships through identifiable experiences. The adult participants, located throughout the United States, recalled experiences from throughout their life that they encountered with peers, family members, community members, romantic partners, and other systems of support. Using Interpretive Phenomenological Analysis (IPA) methodology, the research questions guiding the study were: 1) What are the ways in which salient relationships affect an Indian and white individual’s meaning-making …

Biopsychosocial Mechanisms And Management Of Pain And Emotional Health In Fibrous Dysplasia/Mccune-Albright Syndrome, Camryn Berry

Doctoral Dissertations

Fibrous Dysplasia (FD) is a rare disease where healthy bone is replaced by lesions of fragile, porous tissue. FD lesions may affect a single bone or occur throughout the entire skeleton and can grow rapidly. A diagnosis of McCune-Albright syndrome (MAS) is made when FD is accompanied by endocrinopathies and skin hyperpigmentation. FD/MAS can cause debilitating complications, including disabilities, deformities, fractures, and chronic pain. Pain is one of the most common symptoms of FD/MAS and can have a profound impact on patients’ quality of life. However, FD/MAS pain is complex and varies substantially between patients. This complexity and a lack …

Turbulence And Kinetic Instabilities In The Near-Sun Solar Wind: From Theory To Observation, Nooshin Sierra Davis

Doctoral Dissertations

The near-Sun solar wind provides a natural laboratory for studying the nonlinear and kinetic processes that govern the dynamics of collisionless astrophysical plasmas. This thesis investigates plasma turbulence and kinetic instabilities in the inner heliosphere using theoretical analysis, numerical modeling, and in situ observations.First, young solar wind observations collected by Parker Solar Probe (PSP) are used to examine the radial evolution of nonlinear solar wind turbulence by analyzing magnetic-field power spectra. I investigate the presence and radial evolution of the well-known 1/f spectral behavior in the energy-containing range during a single fast solar wind stream. Measurements close to the Sun …

Support, Collaboration, And Trust: A Mixed Methods Social Network Perspective Of Teacher Turnover, Danielle S. Donovan

Doctoral Dissertations

Purpose: Despite decades of research, teacher turnover remains a consistent challenge for schools and communities. In an effort to better understand why teachers continue to leave the classroom, this dissertation focuses on support, collaboration, and trust ties as an aspect of social working conditions through a social network lens. Methodology: Guided by critical realism as an ontological and epistemological framework, this study uses a sequential research design to implement an ego-centric mixed-methods social network perspective (MMSNP). Findings: Instrumental (pedagogical and instructional resources) and expressive social capital (emotional support and a sense of belonging) exist within teacher networks. Teachers who maintain …

Computationally Probing Quantum Subgroups Via Graph Planar Algebra Embeddings, Caleb Kennedy Hill

Doctoral Dissertations

Tensor categories are algebraic objects used by physicists to describe symmetry, by computer scientists to describe programs, and by logicians to describe theorem and proof. Mathematicians invented them to capture the similarities of the representation theories of common algebraic objects including groups, algebras, and Lie algebras. In this dissertation we give presentations in terms of graphical generators and relations for two tensor categories arising from the two quantum subgroups of quantum G2.

We accomplish this by embedding a tensor-generating object's planar algebra into the graph planar algebra on that object's module fusion graph. Such an embedding allows one to explore …

Permeability And Mechanical Response Of Propped Fractured Rocks Under Varied Fluid Viscosities, Hebatalla A. Ghoneim

Doctoral Dissertations

Hydraulic fracturing relies on proppants to preserve fracture conductivity under reservoir stresses. The long-term performance of propped fractures is influenced by grain crushing, redistribution of fines, pack rearrangement, proppant–rock embedment, and shear deformation. These mechanisms are not fully understood under combined compression and shear stress paths, particularly when viscous carrier fluids interact with fractured rock and proppant packs. This dissertation provides experimental data and device development to characterize proppant and rock behavior relevant to these coupled mechanical and hydraulic processes.Proppant grain-scale strength and pack-scale mechanical response were first examined through uniaxial grain tests, crushing tests, and drained and undrained triaxial …

Leveraging Dna Intercalation For The Development Of Tunable, Versatile Supramolecular Hydrogels, Shaina Marlene Hughes

Doctoral Dissertations

Supramolecular hydrogels have emerged as a versatile class of biomaterials capable of mimicking the dynamic behavior of natural tissues due to their inherent hydrophilicity, stimuli-responsiveness, and viscoelastic behavior. However, achieving both biocompatibility and mechanical tunability remains a challenge. This work utilizes DNA intercalation to create a programmable, sustainable hydrogel platform. By utilizing the reversible insertion of planar aromatic molecules between DNA base pairs, we demonstrate that the network’s dissociation kinetics and thermodynamic response are directly governed by the intercalator structure, offering a highly tunable strategy for stimuli-responsive biomaterials.To demonstrate the versatility of double stranded DNA (dsDNA) intercalating supramolecular hydrogels (DISHs), …

Linking Environmental Change, Microbial Community Assembly, And Function During A Novel Marine Phytoplankton Bloom Using Multi-Omics, Madison Renée Hurley

Doctoral Dissertations

Phytoplankton are central to marine ecosystem functioning, driving primary production, nutrient cycling, and higher trophic level dynamics. In the spring and summer of 2023, the Gulf of Maine experienced an unprecedented bloom of the dinoflagellate Tripos muelleri, reaching densities exceeding 50,000 cells L-1, an order of magnitude higher than previously recorded, and disrupting the region’s typical spring diatom-dominated succession. This bloom provided a unique opportunity to examine the metabolic strategies, ecological interactions, and environmental drivers underlying the bloom persistence and decline. An integrative approach was used, combining 18S and 16S rRNA amplicon sequencing, pigment and image analysis, network modeling, functional …

Who Works From Home, What Is It Worth, And Where Do They Live? Occupational Classification, Work Arrangement Preferences, And Residential Location Choice, Logan Robert Malone

Doctoral Dissertations

This dissertation examines work-from-home (WFH) arrangements through three complementary lenses: occupational feasibility, worker preferences, and residential location choice. The first chapter develops a continuous tools-based measure of WFH potential using the Department of Labor's O*NET Tools and Technology Supplement, which documents the tools used in each occupation. By categorizing tools according to their consistency with remote work and aggregating to the occupation level, I construct a measure that closely aligns with existing classifications while offering finer-grained distinctions than the binary categorizations common in the literature. The tools-based measure agrees with a widely cited task-based measure for approximately 80% of occupations …

Neutral Giant: The United States And The Costa Rican Civil War Of 1948, James Irving

Doctoral Dissertations

This dissertation is a narrative microhistory of American diplomacy during Costa Rica’s transformative 1948 civil war. Emerging out of a contested presidential election, the war pitted the Costa Rican government of Teodoro Picado and its communist allies against an anticommunist, nationalist rebel movement led by José Figueres in a monthlong fight for political power. While existing histories of American policymaking have concluded almost unanimously that the United States intervened to support the rebels as part of its Cold War strategy in Latin America—labeling the civil war a precursor to the more infamous coup in Guatemala in 1954—this dissertation seeks to …

The Bank Of North America And The Making Of American Public Finance In The Confederation Era, Arya Georgina Martinez Arellano

Doctoral Dissertations

This dissertation examines the history of the Bank of North America, the first charteredbank in the United States, as a foundational experiment in American public finance during the critical decade between the American Revolution and the founding of the Bank of the United States in 1791. Historians have often interpreted the Bank either as an extension of Robert Morris's career or as a precursor to Alexander Hamilton’s federal financial system. By shifting the focus from individual actors to institutional practice, this project demonstrates how the Bank of North America functioned as a proto-national financial institution in a political environment where …

Performance-Based Assessment Of Asphalt Overlay Cracking With Laboratory And Field Data, Meisam Khorshidi

Doctoral Dissertations

Efficient and effective rehabilitation of existing pavements is a continuing priority for transportation agencies seeking to maintain safe, reliable, and cost-effective networks. Asphalt overlays are widely used to restore ride quality and extend service life of both asphalt and concrete pavements; however, their long-term performance is often limited by thermal and reflective cracking. These distresses accelerate moisture infiltration, increase maintenance demand, and shorten overlay life, especially in cold-climate regions. Ensuring that overlay designs adequately account for structural configuration, traffic, climate, subgrade conditions, and mixture-level fracture resistance is therefore critical to avoid premature failure and excessive life-cycle costs.This dissertation advances performance-based …

A Qualitative Exploration Of How Spanish-Speaking Latino Parents Communicate With Their Adolescent Children About Substance Use, Diana Karina Diaz

Doctoral Dissertations

Substance use during adolescence remains a significant public health concern, particularly within Latino communities where cultural values, family dynamics, and communication patterns play a central role in youth development. This qualitative study explored how Latino parents communicate with their adolescent children about substance use, the strategies they use for prevention, and the cultural and contextual factors that shape these conversations. Using a focus group design, data was collected from four focus groups consisting of two groups of Latino mothers (n = 10) and two groups of Latino fathers (n = 9). A thematic analysis revealed six primary themes: (1) parent–child …

Walking The Thermal Landscape: Modeling Ecophysiological Responses Of Ecotherms To Marine Heatwaves, Andrew Robert Villeneuve

Doctoral Dissertations

Climate change is accelerating the frequency of extreme heat events in the world’s oceans. These heatwaves can pose critical challenges for marine organisms, especially ectotherm foundation species who have experienced increasingly frequent and severe mass mortality events (MMEs). Predicting when, where, and to what extent populations experience heat-induced mortality is a critical knowledge gap in our ability to anticipate, mitigate, and recover from catastrophic MMEs. Here, I test the application of physiological nonlinear thermal tolerance landscapes (TTLs) and dynamic tolerance algorithms to translate dynamic heatwave events into ectotherm mortality predictions. In chapter 2, I conducted a simulation exploration of how …

A Quantitative Analysis Examining The Impact Of Recreation Sports On The Overall Wellness Of Undergraduate Students At The University Of Louisiana At Lafayette, Kathryn "K-Lynn" Mckey

Doctoral Dissertations

The overarching question guiding this research study was, how does the use of university recreational sports facilities and resources impact reported wellness across the eight dimensions of wellness among undergraduate students? This study answered this question by examining literature, reviewing specific dimensions of wellness, and evaluating ways to determine if physical activity affects overall wellness for undergraduate students. According to the literature, approximately half of undergraduate students do not meet the daily recommendation for physical activity. Research suggests healthier students have greater retention rates, higher grade point averages (GPA), and demonstrate better mental health. To better support students’ needs, universities …

Classroom To Campus: A Qualitative Case Study Of Exemplary First-Year Seminar Instructors In Student Transitions At A Louisiana University, Brianna J. Doucet

Doctoral Dissertations

This qualitative case study examined how exemplary first-year seminar (FYS) instructors design and implement pedagogical strategies that support students’ transitions into higher education through the lens of Schlossberg’s (1981) Transition Theory. Conducted at a public university in Louisiana, the study explored how university-identified, award-winning instructors foster academic, social, and emotional adjustment among first-year students, a critical priority amid the impending enrollment cliff and the growing need to retain enrolled students. Using semi-structured interviews and thematic analysis, findings revealed exemplary instructors design intentional, relational, and reflective learning environments. They view transition as a shared institutional process, model adaptability and lifelong learning, …

Examining Alumni Engagement Policies Among R1 Universities: A Comparative Analysis Of Best Practices, Howayda Ackleh

Doctoral Dissertations

This study explores the need to update policies and enhance practices for alumni engagement in higher education institutions. Current alumni strategic plans require evaluation and refinement, while new approaches must be developed to strengthen alumni involvement. By analyzing the challenges institutions face in maintaining alumni connections, this review seeks to identify gaps and establish effective best practices. By examining the questions, how do alumni associations at select public R1 institutions apply Utilization-Focused Evaluation (UFE) principles to assess and improve their alumni engagement strategies, and how does this impact their alignment with institutional goals and objectives? This study aims to evaluate …

Faculty, Staff, And Counselor Awareness Of The Challenges Faced By Autistic Students: A Quantitative Descriptive Study Of Resources, Training, And Support For Autistic Student Success In Higher Education, Erika Rosario

Doctoral Dissertations

Higher education institutions should establish two essential measures to support students with autism spectrum disorder (ASD): they need to implement standardized training for all personnel working on campus and create opportunities for hands-on experience through peer programs and collaborative educational events. The pursuit of equity in education demands nothing less. This study investigates the extent to which university faculty, staff, and counselors are aware of the challenges faced by autistic students, how knowledgeable they are about resources available to aid them, and the degree of their training, support, and collaboration in addressing students’ needs. By answering these research questions, the …

Understanding Inclusive Postsecondary Education Programs For Students With Intellectual And Developmental Disabilities, Jade Viator Mcminn

Doctoral Dissertations

Inclusive Postsecondary Education programs for individuals with intellectual and developmental disabilities are growing rapidly, and this is largely due to the legislative changes of the Higher Education Opportunity Act of 2008 (Higher Education Opportunity Act, 2008). This dissertation study will examine the current legislation under the Higher Education Opportunity Act (2008), opportunities for federal funding, and postsecondary education programs for individuals with intellectual and developmental disabilities as a whole. This review will also cover Comprehensive Transition and Postsecondary programs, which are a direct result of the Higher Education Opportunity Act of 2008. These approved programs allow eligible students to receive …

“I’M A Figure-Outer!”: Connecting Through Self-Narratives Of Competence In A Community Of Literacy-Learners, Mckenzie Weddle-Coats

Doctoral Dissertations

This dissertation applies qualitative methods through intrinsic case study design to explore how one emerging literacy learner’s self-narrative of literacy competence manifested in a literacy-learning community. Drawing on multiple data collection and analysis methods, this dissertation investigates how a school-aged child with a history of literacy struggles used her self-narrative statements to position her identity within a 6-week summer literacy project. Findings revealed that the participant used self-narrative statements strategically to carry out different connecting mechanisms for the purposes of demonstrating competence or saving face in literacy contexts, ultimately demonstrating her prioritization of connection. The child’s orientation towards connection is …

Fully Differential Studies On Dissociative Capture In P + D2 Collisions And On Ionization In P + He Collisions, Shruti Majumdar

Doctoral Dissertations

Advancing our understanding of few-body dynamics in simple atomic systems is a fundamental objective in atomic scattering research. The underlying problem is that the Schrödinger equation is not analytically solvable for more than two mutually interacting particles. This involves a comprehensive exploration of various channels, such as ionization, capture, and excitation. A common theoretical approach to describe ion-atom collisions is based on perturbation theory, where the scattering amplitude is expanded in powers of the interaction potential. Here, understanding the few-body problem means accurately describing the relative importance of the higher- vs the first order terms.

In the case of ionization, …

Strontium Titanate For Capacitor And Energy Storage Applications At Cryogenic Temperatures, Hung Trinh

Doctoral Dissertations

This study investigates the dielectric properties of single crystal and ceramic strontium titanate (SrTiO₃) for cryogenic capacitor applications from room temperature to 4 K. Permittivity (k) and loss tangent are dependent on temperature, frequency, mechanical stress, and applied DC electric field. Accordingly, the dielectric constant and loss tangent were measured at various frequencies and DC bias levels. Loss tangent data are also presented as equivalent series resistance (ESR). For single crystal SrTiO₃, an impurity level of ≈500 ppm barium resulted in an increase of the maximum permittivity to approximately 50,000 at 6 K. This relatively high …

Perception Of Posed And Naturally Occurring Emotion Expressions In Close Friendships, Kaitlyn M. Mcmullen

Doctoral Dissertations

While relationships are critical to our daily emotional lives, the limited research on emotion perception among close friends presents inconsistent evidence concerning whether differences exist between close friends and strangers. The present work examined the ways in which familiarity between close friends’ shapes emotion perception. In Study 1a, expressors provided both naturally occurring and dynamic posed emotion expressions for seven emotion categories (anger, sadness, fear, disgust, happiness, surprise, and neutral) in order to develop a stimulus set where the stereotypicality of the expressions varies within-subjects. In Study 1b, a self-identified close friend of each expressor viewed and rated the expressions …

Unified Attack Modeling And Mitigation Framework For Multiple Physical Attacks In Sensor Networks For Advanced Manufacturing, Mohammad Mezanur Rahman Monjur

Doctoral Dissertations

The advanced manufacturing industry (AMI) faces unique challenges in security assurance. Security threats in AMI can originate from both software and hardware. Over the past decade, software security has been addressed extensively, but hardware security has not received enough attention. This work focuses on the security vulnerabilities of typical electronic devices deployed to AMI. Three attack models are proposed to characterize sensing nodes, local processing edge devices, and wired/wireless communication interfaces. Moreover, practical security attacks on hardware are demonstrated to inspire the development of feasible countermeasures against common physical attacks. To explore effective attack mitigation methods, we examine two attack …

The Garden Of The Machine: Simulated Wildness And Digital Domestication In American Literature 1970-2020, Cameron Netland

Doctoral Dissertations

Studying American literature produced during the Information Age, from 1970 to 2020, reveals an evolution of wild human resistance to the increasing powers of digital technology. These increasing powers include capturing attention, fostering dependence, and training behavior through a process I call digital domestication. Digital domestication distances people from wildness, and as William Cronon writes in “The Trouble with Wilderness”, “Learning to honor the wild—learning to remember and acknowledge the autonomy of the other—means striving for critical self-consciousness in all of our actions.” (20). Through this framework of wildness, one reads characters in fictional narratives resisting non-coercive new technologies as …

Analysis Of The Complex Nmr Lineshape Of Polarized Deuterons, Michael Joseph Mcclellan

Doctoral Dissertations

To determine the spin polarization of deuterons, nuclear magnetic resonance (NMR) is used. This is necessary for polarized targets, such as for the upcoming $A_{zz}$ and $b_{1}$ experiment at Jefferson Lab. These polarized target experiments are expected to discriminate between different models of the deuteron, which in turn could lead to a better understanding of short-range correlations (SRCs). NMR measures the impedance of a solenoid around a deuterated sample. Although the impedance is a complex value, conventionally only the real part of the impedance has been used for this purpose. However, often the tune is not precisely real, meaning the …

Reframing Coral Reef Monitoring With Machine Learning And Remote Sensing: Detection, Classification, And Change, Gabrielle Ann Trudeau

Doctoral Dissertations

Coral reefs are vital ecosystems facing rapid decline from climate-driven stressors, yet existing monitoring approaches lack the spatial coverage and temporal resolution needed to capture ecosystem dynamics at meaningful scales. This thesis develops a scalable, integrated remote sensing framework by combining ICESat-2 LiDAR, multispectral imagery, and machine learning to move beyond static habitat maps toward quantitative, multi-factor characterization of reef structure and change. First, machine learning models were applied to ICESat-2-derived rugosity, slope, and bathymetric metrics to detect and delineate coral reef habitats at large scales. Next, a novel nonlinear spectral unmixing approach integrating Planet imagery and ICESat-2 terrain metrics …

Ai-Enabled Urban Decision-Making: From Infrastructure To Policy Implementation, Amir Hosein Taherkhani

Doctoral Dissertations

Urban infrastructure systems face unprecedented compound threats from aging physical stock, climate-driven hazard escalation, and large-scale systemic shocks, yet the analytical tools available to decision-makers remain inadequate in both empirical scope and equity orientation. This dissertation advances urban resilience science along two complementary empirical frontiers.The first investigation develops a deep reinforcement learning framework for socially equitable, flood-aware bridge portfolio maintenance optimization. Using Proximal Policy Optimization, a portfolio of 19 flood-vulnerable bridges in Suffolk County, Massachusetts is optimized over a multi-year planning horizon integrating HAZUS-based flood hazard simulation across four return-period scenarios (10, 50, 100, and 500 years), HEC-18 hydraulic scour …

The Long And Short Of It: Exploring The Essential Dynamics Of Select Geophysical Flows, Adhithiya Sivakumar

Doctoral Dissertations

Geophysical flows are central to important climatological processes, yet their strong turbulence and additional complexities -- density stratification, wave-current interaction, and phase change -- make analytical prediction and direct numerical simulation infeasible in many regimes. This dissertation adopts a reductionist approach in which simplified representations -- often inspired by observed scale disparities -- are utilized to isolate and investigate the organizing mechanisms of these complex flows. Within this framework, three distinct but thematically connected problems are studied.

We first study Langmuir turbulence in the open ocean, in which surface gravity waves interact with wind-driven currents to organize the mixed layer …