Digital Commons Network^™

Associations Between Sexual And Gender Minority Stress Exposure And Schizophrenia-Like Experiences In The South, Lillian A. Hammer

Dissertations

Background: Negative experiences related to one’s minority identity serve as stressors contributing to mental health concerns for those identifying as a sexual and/or gender minority (SGM). SGM groups have greater severity of some mental health symptoms than non-SGM individuals, yet it is poorly understood whether these findings extend to schizophrenia-like experiences (SLEs). SLEs are associated with significant distress and may indicate risk for the development of schizophrenia-spectrum disorders. Associations between exposure to minority stress and SLEs are underexplored. This study aimed to fill this gap by assessing whether exposure to SGM-related minority stress was related to SLEs using ecological …

Familismo: Exploring A Culturally Sensitive Correlation Between Parentification And Relationship Satisfaction Amongst First Generation Mexican-American Adults Through An Attachment Theory Lens, Ana K. Perez

Dissertations

Parentification refers to the role reversal of children who take on adult responsibility to care for family members. This role is often filled by Mexican-American children as a result of immigration and assimilation. This study explored the relationship between parentification and adult romantic relationship satisfaction among first-generation Mexican-American adults, with particular attention to the moderating roles of attachment styles and perceived unfairness. While earlier research has linked parentification to mental health challenges, few studies have examined its long-term impact on intimate relationships, including relationship satisfaction and experiences of intimate partner violence. A total of 132 participants completed an online survey …

Combat And Beyond: Predictors Of Post-Traumatic Growth In War Zone Veterans, Gabriela Crucianu

Dissertations

Veterans returning from combat often face psychological challenges, but many also experience posttraumatic growth (PTG), which refers to positive changes that can emerge after trauma. This study explored whether coping strategies, personal characteristics, social support, and combat exposure were associated with PTG in a sample of 42 war zone veterans using quantitative and qualitative methods. Participants completed validated measures assessing combat exposure, coping strategies, social support, personal characteristics (e.g., optimism), and PTG. Regression analyses showed that combat exposure, coping strategies, and optimism were not significant predictors of overall PTG. However, combat exposure was associated with appreciation for life, a dimension …

Working Mothers Of Children With Disabilities: Professional And Social Identity Negotiation, Christy D. Boyles

Dissertations

Women who have children with disabilities may struggle with both employment and childcare, and have barriers to re-entering the workforce. One struggle is the role identification and negotiation that occur when one transitions from one role to another. This research sought to answer the following questions: RQ 1. How does professional identity influence the “return to work” decisions for mothers who have children with disabilities? RQ 2. How do working mothers of children with disabilities negotiate their identities as caregivers and professionals? RQ 3. What other emerging factors affect women’s decisions to return to the workforce? A purposeful sample of …

"Please Put The Phone Down!": Self-Determination Theory Applied To Parental Social Media Mediation, Benjamin A. Dolowich

Dissertations

The majority of adolescents and young adults use social media (Chaddock, 2024; Coyne et al., 2013). Parents are faced with the challenge of considering the role social media may play in their children’s lives (Valkenburg et al., 2013). Using self-determination theory as a framework (Deci & Ryan, 2000), we investigated psychological needs as one mechanism connecting parental social media mediation strategies with well-being and emotional distress in a sample of young adults. Participants were 244 undergraduate students who completed online questionnaires. The results highlighted that controlling styles of parental social media mediation have an association with emotional distress. Psychological needs …

The Relationship Between Adverse Childhood Experiences, Protective And Compensatory Experiences, And Parenting Attitudes Among Fathers, Kylie Schmidt

Dissertations

Adverse childhood experiences (ACEs) are defined as potentially traumatic events that occur in childhood particularly between the ages of 0 and 17 years that negatively influence long-term health, relational functioning, and parenting practices (Centers for Disease Control and Prevention, 2026; Felitti et al., 1998; Merrick et al., 2019). Conversely, protective and compensatory experiences (PACEs) have emerged as protective factors that foster resilience and possibly buffer against the adverse outcomes of ACEs (Narayan et al., 2018). As the existing research has greatly focused on mothers, little is known about how men’s early life experiences shape their parenting attitudes, particularly during the …

Exposing And Addressing Machine Learning Brittleness Through Constraint Solving, Muyeed Ahmed

Dissertations

Machine Learning (ML) implementations are fundamentally brittle: nondeterministic, inconsistent, and prone to overfitting; however, constraint solving can be used to systematically expose, quantify, and address this brittleness.

This dissertation first establishes that widely-used implementations of popular ML algorithms are nondeterministic (producing different outputs on the same input, across different runs) and inconsistent (different implementations of the same algorithm producing different outputs on the same input). This is more prevalent in Unsupervised Learning (UL) implementations where, due to the lack of a ground truth, subtle execution errors can go unnoticed and are difficult to verify. Nondeterminism and inconsistency also introduce security …

Engineered Porous Structures For Propellants Using Additive Manufacturing, Elbert Caravaca

Dissertations

Foamed polymers are widely used today for shock absorption and packaging materials to prevent damage to their contents. Typical foamed densities vary from 0.1 g/cm³ to 0.4 g/cm³ depending on the polymeric materials used. There is a need to explore foaming densities above 0.4 g/cm³ for propellants with highly engineered surface area progression for increased combustion performance. One way to achieve this is through highly controlled and engineered graded foam structures. To further exploit this approach, additive manufacturing coupled with a tunable means to generate foamed structures is the target of this work. To generate foam structures …

Development Of Ultrafast Protein Digestion And Standards Free Quantitation Methods For Mass Spectrometric Analysis, Praneeth Ivan Joel Fnu

Dissertations

A wide variety of biologically important molecules, such as enzymes, antibodies, hormones, transporters and receptors are proteins by composition and they play key roles in biological functions such as cellular regulation, communication, metabolism and physiological function. Protein dysfunctions and abnormalities are associated with numerous diseases, making proteins critical targets for understanding disease mechanisms and developing therapeutic interventions. Protein-based therapeutics such as monoclonal antibodies, hormones and vaccines gained popularity due to their high specificity, efficacy, and ability to treat complex diseases that are often difficult to address with small-molecule drugs.

Given the important role of proteins in a variety of biological …

The Inverse Elasto-Acoustic Problem, Patrick Grice

Dissertations

A stable and numerically efficient boundary integral method formulation of the elasto-acoustic problem is presented, based on Fourier analysis. The method generalizes well to multiple scattering. The Frechet derivative of the elasto-acoustic problem with respect to shape perturbations is derived, and geometric flow theory is used to design stable numerical methods for the simulation of moving boundaries. The shape derivative is used to define a regularized Gauss-Newton algorithm for shape fitting of elasto-acoustic scatterers.

Geographic And Environmnetal Influences On Color Pattern Similarity Between Coral Snakes (Genus: Micrurus) And Their Lookalikes, Anthony Sena

Dissertations

Venomous coral snakes and their lookalikes are often regarded as a classic example of Batesian mimicry, whereby a harmless species imitates a harmful species. The existing literature regarding coral snake resemblance presents a divisive stance on whether Batesian mimicry is the primary driver of shared color patterns or if alternative factors are responsible. While recent literature largely favors the Batesian hypothesis, empirical support remains inconsistent, and the specific geographic and interpretation of the conditions required for mimicry lacks consensus within the scientific community.

To evaluate the mechanisms maintaining these phenotypes, a quantitative, multivariate framework was utilized to analyze 400 museum …

Geometric Convergence And State-Space Decompositions For Stochastic Gradient Descent Markov Chains, Philip Zaleski

Dissertations

No abstract provided.

Solar Wind - Magnetosphere - Ionosphere Coupling Processes Through Small-Scale Magnetic Flux Ropes, Youra Shin

Dissertations

Small-scale magnetic flux ropes (SMFRs) in the solar wind are examined to determine their properties in the near-Earth upstream region and their effects on geospace. Although SMFRs are observed frequently in the solar wind, their statistical behavior near Earth and their role in solar wind-magnetosphere-ionosphere coupling remain insufficiently constrained. In this dissertation, an automated Grad-Shafranov reconstruction technique is applied to magnetic field and plasma measurements from MMS and Wind, and ionospheric responses are investigated using geomagnetic indices and SuperDARN observations. During the survey period, MMS has an apogee of approximately 25-29 R_E. This orbital configuration allows the near-Earth …

Through Their Lens: Co-Teachers’ Effective Strategies That Support Ells And Swds In Mathematics Inclusion Classrooms, Cheryl A. Bentham

Dissertations

Abstract

The current dialogue surrounding minoritized students in mathematics classrooms often focuses on deficit-based narratives that compare their competency to unrealistic norms. Such continuous negative narratives only serve to add another layer of marginalization to students who are already underserved, notably Black and Hispanic students, and subgroups comprising ELLs and SWDs. This qualitative case study explored the research-based strategies utilized by three co-teacher pairs to support ELLs and SWDs in Algebra inclusion classrooms. Vygotsky's (1978) social constructivist theory guided the study, which posits that learning occurs through social interactions, environmental influences, and support from more knowledgeable others. The data were …

Teacher Experience And Perception Of Feedback Literacy In The International Baccalaureate Diploma Programme, Carla B. Mills

Dissertations

Writing instruction in schools remains a significant area of concern even after decades of awareness that students are not performing at proficient levels upon high-school graduation. This phenomenographic case study investigated teacher feedback literacy at the secondary level through interviews with teachers of writing-intensive International Baccalaureate Diploma Program courses and document analysis. Areas of feedback literacy strength included teacher awareness of designing positive class environments, attending to the socio-emotional needs of their learners, extensive use of both rubrics and exemplars, and frequent provision of verbal feedback. Document analysis revealed the presence of explicit instruction in written feedback, rubric use, and …

Ai You Can Trust: Understanding The Role Of Structural Assurance And Situational Normality In The Use Of Generative Ai, Olushola Bunmi Abayomi

Dissertations

The rapid growth of generative artificial intelligence (GenAI) has increased its use in productivity, content creation, and decision support; however, adoption depends on user trust, as GenAI performs tasks that are often associated with human judgment. Drawing on the Trust in Technology Model, this dissertation examines how structural assurance and situational normality influence Trust in GenAI, and how Trust in GenAI affects trusting intentions and users' willingness to depend on GenAI. Structural assurance and situational normality, captured through several factors, were modeled as antecedents of Trust in GenAI and, in turn, trusting intentions. The model was tested using survey-based experimental …

Identifying The Threshold: Using Regulatory Focus As A Predictor Of Ceo Adaptibility During Environmental Changes, George B. Constantine Iii

Dissertations

Building on research on CEO turnover and strategic leadership, this study examines how decision makers' regulatory focus shapes strategic decision-making and how this can contribute to performance decline, often resulting in CEO replacement. Drawing on regulatory focus theory, the study theorizes that measurable chronic regulatory focus attributes influence decision makers’ capacity to adapt to environmental change—conditions under which prior research suggests executives may become rigid and persist with established strategies. Despite its relevance for strategic adaptation, such chronic trait behavior has received limited attention in the current business literature. To address this gap, effectuation theory is integrated into a simulation-based …

Adverse Childhood Experiences And Juvenile Offending: Client-Factor Variations And A Novel Intervention Approach, Madison M. Dobreff

Dissertations

Adverse childhood experiences have consistently been identified as risk factors for juvenile offending. However, this relationship is complex and varies based on individual factors. This critical literature review not only examined the current research on the relationship between adverse childhood experiences and juvenile offending but also identified client factor variations that influence the relationship. Client factors examined throughout include race/ethnicity, gender, age, internalized and externalized mental health symptoms, positive internal factors, familial and external social support, educational engagement, environmental factors, and positive childhood experiences. The relationship is further complicated by examining the effects of multiple client-factor variations on the adverse …

Tier 2 Literacy Interventions In Low-Income Schools: Implications For Breaking The Cycle Of Poverty, Morgan Koch

Dissertations

This study examined the development of a mastery-based Tier 2 reading and writing curriculum prototype designed to improve the coherence and consistency of literacy intervention in high-poverty educational settings. Using the Design Thinking process, stakeholder feedback from educators, administrators, instructional staff, and parents informed the development of the prototype through the Empathy, Define, Ideate, Prototype, and Test phases. The curriculum was evaluated by 15 education professionals through a mock implementation, usability survey, and focus group discussion. Findings suggested that participants perceived the prototype as practical, well organized, and supportive of more efficient and consistent Tier 2 literacy instruction, while also …

The History Of Poro College From 1902-1965, Chajuana V. Trawick Ferguson

Dissertations

This study investigates the development, operation, decline, and historical erasure of Poro College, the first multimillion‑dollar, minority‑owned higher education institution and vertical beauty‑culture enterprise, founded by Annie Turnbo Malone in St. Louis, Missouri. Drawing on Poro College documents, Black newspaper archives, National Trust for Historic Preservation records, and interviews with individuals knowledgeable about the institution, the research addresses four central questions: how Poro College was developed; its impact on students, employees, and the surrounding community; its relevance for current and future minority women educators and entrepreneurs; and the factors that contributed to its closure and eventual demolition. Evidence from the …

Measuring Administrative Hiring Confidence Of Music Teachers In The Context Of Shallow Hiring Pools, Aaron M. Strum

Dissertations

The purpose of this study was to identify and measure the confidence of K-12 administrators in hiring music faculty. This study also aimed to analyze administrators’ perspectives and confidence in key stages of the hiring process, including defining job expectations, posting, advertising, interviewing, and selecting highly specialized music teachers in K-12 settings. Confidence of K-12 administrators can be gauged through their understanding of how well an applicant aligns with the specific needs of the school’s program. Three research questions guided this investigation: (1a) How confident are K-12 administrators in their understanding of music teaching pedagogy when interviewing music teacher candidates …

Eusocial Caste Specialization Under Abiotic And Biotic Stress In A Stingless Bee, Tetragonisca Angustula, Kristin M. Robinson

Dissertations

Eusocial insects rely on division of labor to achieve high colony efficiency and provide essential ecosystem services, but specialization may also constrain colony resilience when workers operate near their physiological or behavioral limits under abiotic and biotic stressors. How specialization mediates these responses remains poorly understood, particularly in stingless bees (Tribe: Meliponini). Using the agriculturally relevant stingless bee Tetragonisca angustula, which possesses a specialized soldier subcaste, I investigated how a high degree of worker specialization influences physiological tolerance and predator responses across worker subcastes.

In this dissertation, I quantified variation in thermal tolerance and desiccation resistance among worker subcastes …

Blueprints For Resilience: A Delphi Study Of Architects' Competencies In Gulf Coast States, Richard J. Cantu

Dissertations

This study identifies and defines core competencies for licensed architects practicing in Gulf Coast states, emphasizing their critical role in protecting health, safety, and welfare (HSW) amid the region’s unique environmental challenges. Hurricanes, flooding, climate-induced risks, and other coastal hazards demand specialized expertise that existing architectural competency models do not adequately address. Leveraging Delphi’s research design, this study engaged Gulf Coast experts to develop and refine a region-specific competency framework across four iterative rounds. The findings highlighted the essential knowledge, skills, and abilities required for resilient and sustainable architectural practice. The study advances architecture’s human capital development (HCD) by addressing …

A Trombone Studio Teacher's Guide To Non-Injury-Related Embouchure Changes, Austin A. Handley

Dissertations

This dissertation is a pedagogical guide for trombone studio teachers who will lead students through embouchure changes. These changes and adjustments are normal in brass pedagogy, but there is limited literature that addresses how teachers should identify the need for change, initiate the process, and support students through it. There are a growing number of resources available about embouchure injury and dysfunction, rehabilitation, and long-term prevention. This leaves a gap for teachers who are trying to help students using an inefficient embouchure setup.

The purpose of this study is to provide a practical resource for teachers by examining the experiences …

Why They Stay: A Qualitative Study Of Experiences Of Veteran Low-Incidence Self-Contained Special Education Teachers Who Remain In The Profession, Jessie Leyden

Dissertations

Persistent shortages of special education teachers in the United States have intensified the need to understand not only why some educators leave, but why others choose to stay. The purpose of this qualitative case study was to understand the experiences of veteran special education teachers working in low-incidence, self-contained classrooms who choose to remain in the profession. With a particular focus on the factors that contribute to their retention beyond the first three years, the study involved a sample of ten low-incidence, self-contained teachers from a variety of states across the country. Using semi-structured interviews, the study explored how these …

Black Women Science Teachers’ Contextual Knowledge Shapes Technology Integration To Support Culturally Responsive Teaching In Secondary Science Classrooms, Ashley M. Thomas

Dissertations

The number of Black and Brown high school students entering college to study science and technology majors is declining. Because they encounter shared intersectional experiences in the science and technology fields, Black women have a unique connection with their students that builds on teaching practices grounded in culturally responsive teaching (CRT). The mixed methods study was bounded to one school district that had a CRT initiative and provided training to its teachers. The study used a pre-validated survey regarding the perceptions of CRT in a technology-supported learning environment and identified the tools and practices Black female science teachers (BFSTs) use …

The Influence Of Shape Complexity And Exploratory Behavior On Grasping, Mckenzie Gunter

Dissertations

People can orient and configure their hands in many ways in order to grasp objects. The current study investigates how object shape and hand placement influence graspability of objects, and how experimentally imposed constraints on grasping type alter grasping behavior. In a recent study, Gunter and Hajnal (under review) found that the ratio of object curvature and maximal handspan is the variable that defines the affordance of graspability. The current study aims to extend these findings by employing a more precise measurement of finger placement in two experiments using 3D printed objects as stimuli. To capture varying complexities of object …

Understanding The Impact Of Parenting, Self-Determination Theory, And Adverse Childhood Experiences On College Students, Melanie D. Prater

Dissertations

College students are at high risk for experiencing psychological distress which impacts their academic, mental, and physical well-being (Eskin et al., 2016; Reed‑Fitzke & Lucier‑Greer, 2020; Sharp & Theiler, 2018). The Self Determination Theory (SDT) serves as a suitable framework for investigating the impact of parental autonomy support (PAS) and parental psychological control (PPC) on college students’ well-being and distress. According to SDT, the satisfaction of three foundational needs (autonomy, competence, and relatedness) supports well-being, while thwarting of these needs may be associated with psychological distress and resilience (Costa et al., 2016; Lera & Abualkibash, 2022; Reed‑Fitzke & Lucier‑Greer, 2020; …

Seeing The Unspoken: A Pilot Eye-Tracking Study Of Moral Injury Among Veterans, Eva M. Valdez

Dissertations

This pilot study examined associations between self-reported moral distress, state distress, combat exposure, deployment history, and maximum pupil reactivity among veterans diagnosed with PTSD. Participants viewed neutral and morally relevant images while pupil responses were recorded using eye-tracking technology. Self-report measures included moral distress severity, exposure to potentially morally injurious events, Subjective Units of Distress Scale (SUDS) ratings, total deployments, number of combat deployments, and Combat Exposure Scale scores. Maximum pupil reactivity was calculated by subtracting the mean z-scored maximum pupil response during neutral image presentations from the mean z-scored maximum pupil response during morally relevant image presentations. This variable …

Intergenerational Trauma And Grief Among The Latine Community: Proposed Interventions And Treatment Considerations, Alexandra M. Johnson

Dissertations

The intersectionality of bereavement, trauma, and culture has many clinical considerations, including the impact on individuals and families. Traumatic events can impact an individual directly, collectively, and intergenerationally. The Latine community is one of the largest cultural groups in the United States, and mental health treatment often includes several cultural considerations. This critical literature review examined how the Latine community has been impacted by intergenerational trauma, specifically through experiences of grief and loss, to inform clinical focus, case conceptualization, and identify gaps in the literature. The first chapter provides a brief history of the intersectionality of intergenerational trauma and bereavement, …