Digital Commons Network^™

In The Name Of The Mother, The Nation, And The Race: White Women, The Jim Crow South, & Moralized White Supremacist Feminism, Shayna M. Lawson

Theses and Dissertations

This thesis introduces the concept of moralized white supremacist feminism to examine the central role white women played in constructing, legitimizing, and sustaining racial hierarchies in the Jim Crow South through a network of cultural and political organizing, particularly through the United Daughters of the Confederacy and Women’s Ku Klux Klan. Far from passive observers, white women were strategic agents of segregation, leveraging ideals of purity, motherhood, and moral virtue to enforce anti-Black violence and oppression through educational, civic, legal, and symbolic institutions, as well as extra-legal practices. Drawing from archival materials, oral histories, and critical race theory, this study …

Reverse-Chinoiserie: Qing Imperial Porcelain And The Reappropriation Of European Rococo, Yifan (Mia) Ye

Theses and Dissertations

This thesis introduces “reverse-chinoiserie” to describe the Qing court’s reappropriation of European Rococo aesthetics in imperial porcelain. Through case studies of 18th-century ceramic diplomacy and design, it reveals how cultural imitation was reengineered into visual sovereignty. It examines how China responded to, absorbed, and redirected European fantasies of empire.

Intergenerational Transmission Of Health: Evidence From Indonesia, Fatima Khan

Theses and Dissertations

This study estimates the causal transmission of health from mothers to their children. Intergenerational associations in health and other human capital outcomes are well established, but those associations may not be causal due to common unobserved factors between a mother and her child. This study employs two-stage least squares, using weather variation as an instrument, to causally identify the relationship between maternal health and child health outcomes in five dimensions: height-for-age, self-reported health, blood pressure, lung capacity, and hemoglobin levels. The data are from the Indonesian Family Life Survey (1993--2014), a longitudinal survey that provides a 21-year look into the …

Acute Exposure Of American Oyster (Crassostrea Virginica) To Selected Antidepressant Drug: Histological, Biochemical, And Immunohistochemical Assessments, Md. Faisal Amin

Theses and Dissertations

The rapid increase in pharmaceutical use has brought significant health benefits to humans. Studies have shown that many pharmaceuticals, such as antidepressants, are often detected in surface waters, groundwater, and even drinking water. These pharmaceuticals in aquatic environments threaten marine life seriously. Marine bivalves are vital source of seafood for people worldwide. In this study, we examined the effects of short-term exposure to fluoxetine, an antidepressant used to treat depression, at low (0.5 μg/L) and high (5 μg/L) doses over a one-week period on American oysters (Crassostrea virginica) under controlled laboratory conditions. Histological analysis revealed atrophy in the gills and …

Reflections Of Linguistic Experiences In A Borderland: Influences On Cultural Identity And Teacher Praxis, Iliana Cantu

Theses and Dissertations

This Autoethnographic dissertation uses autohistoria-teoria to critically analyze my lived curriculum as a Mexican-born raised in the borderland of the Rio Grande Valley. This research aims to understand the influence of my linguistic experiences on my cultural identity and teaching praxis within the same context. Drawing from Anzaldua’s (1987) concept of Borderlands as a contextual lens and Raciolinguistics as a theoretical framework, I examine and reflect on key linguistic experiences that have perpetuated colonizing linguistic practices rather than fostered linguistic diversity. Additionally, Culturally Linguistic Sustaining Pedagogy serves as a framework to critically analyze my teaching praxis in relation to my …

Barriers To Hispanic Post-Secondary Education In Science Fields, Luis Slayton

Theses and Dissertations

The study aimed to examine whether external barriers could be identified and are present throughout a Hispanic individual's educational life. The beliefs of the Hispanic community regarding education and the nature of acquiring an education could be relevant to the factors that impede the completion of high school. A survey approach was chosen as the methodology for the study due to the confidential nature of a questionnaire. Human nature tends to be more honest when not asked personal questions face-to-face. Additionally, there is potential to generalize attributes from a small sample to a larger population, allowing inferences about the identified …

Examining The Relationship Between Teaching Presence In The Community Of Inquiry Framework And Student Satisfaction In Online Graduate Educational Technology Courses, Vianna Madrid

Theses and Dissertations

The Community of Inquiry (CoI) Framework, comprising three key elements, social presence, cognitive presence, and teaching presence, provides a theoretical foundation for understanding how students engage with and perceive their online learning environments. Among these elements, teaching presence, encompassing course design and organization, facilitation of discourse, and direct instruction, plays a fundamental role in shaping students’ perceptions of instructional clarity, support, and overall satisfaction. This quantitative study, grounded in the CoI model, examines the relationship between the categories of teaching presence and student satisfaction among graduate students enrolled in online Educational Technology courses. Accordingly, a survey instrument incorporating the CoI …

Job Satisfaction And Vocational Services In Persons With Acquired Brain Injury, Claudia Eliza Gonzalez

Theses and Dissertations

The incidence of acquired brain injuries continues to rise world-wide resulting in increased disability status and national costs related to these injuries (Ahonle et al., 2020; BIAA, 2024; CDC, 2003; CDC, 2015; CDC, 2023; Grigorovich, et al., 2017; Tyerman et al., 2017). Long-term health effects associated with acquired brain injuries have social and environmental impacts that influence the individual with the injury beyond acute treatment and rehabilitation (Ahonle et al., 2020; CDC, 2023; Frieden et al., 2015; Grigorovich, et al., 2017; Tyerman et al., 2017). This, in turn, affects employment as many individuals with brain injuries are unable to return …

Exploring Intra- And Interpersonal Connection Through Mindful Moments At A Hispanic-Serving Institution, Yvette Angeline

Theses and Dissertations

The demands of contemporary education have contributed to high levels of stress, anxiety, and burnout among educators (Barton, 2019; Hidajat et al., 2023; Walker, 2022), uncovering a need for pedagogical approaches that prioritize holistic well-being and humanize the learning experience (Palmer, 2009; Salazar, 2013; Wong & Mishra, 2020). This qualitative case study investigates how moments of mindfulness, integrated as curricular practice within a teacher education program at a Hispanic-Serving Institution (HSI), nurtures pre-service teachers’ awareness of the self and world. This study explores aspects of mindfulness from its Eastern origins (Thich Nhat Hanh, 1975) and its Western secular applications (Jon …

The Relationship Between Principal Leadership Behaviors And Teacher Leadership In Secondary Middle Schools In South Texas, Tina Garza

Theses and Dissertations

This study examined the relationship between principal leadership behaviors and teacher leadership opportunities in grade 6 – 8 middle schools in South Texas, with a focus on understanding how leadership structures influence teacher engagement and voice. Utilizing both quantitative and qualitative data, the research found that informal teacher leadership in grade 6 – 8 middle schools in South Texas is significantly more common than formal leadership roles, with peer collaboration emerging as the primary avenue for leadership engagement. Middle school teachers consistently expressed a desire to contribute meaningfully to school improvement but identified principal gatekeeping as a major barrier to …

Social Participation And Health-Related Quality Of Life For Adults With Neurodevelopmental Disabilities: Capabilities Mediation And Employment Status And Social Security Disability Insurance Moderation, Kayi Ntinda

Theses and Dissertations

Social participation is a key determinant of health-related quality of life (HRQoL) of adults with neurodevelopmental disabilities (NDDs), yet how individuals with NDDs engage socially to support their HRQoL remains poorly understood. Furthermore, the influences of personal capabilities, employment status, and Social Security Disability Insurance (SSDI) as social factors for well-being are underexplored with this population.

This cross-sectional study investigated the direct and indirect effects of social participation on HRQoL, examining capabilities as a mediator and employment status and SSDI receipt as moderators. The study sample comprised 304 adults with NDDs (females = 83.3%; age range 18 to 60 years …

Occupational Therapy Educators’ Perceptions Of Preparedness To Teach Students Culturally Responsive Care For Diverse Patient Populations, Jack Ruelas

Theses and Dissertations

This phenomenological investigation examined occupational therapy faculty preparedness for teaching culturally responsive care to entry-level doctorate students in Texas. Despite Accreditation Council for Occupational Therapy Education (ACOTE) mandates requiring cultural competence education, significant gaps persist between regulatory requirements and faculty readiness to deliver such instruction effectively. The study explored three interrelated dimensions: (1) faculty perceptions of their preparedness to teach cultural competence, (2) institutional training and support mechanisms, and (3) pedagogical integration strategies for culturally responsive content.

Employing interpretive phenomenology grounded in Freire's critical pedagogy and Iwama's Kawa Model, this investigation utilized a two-phase data collection methodology with eleven faculty …

Low-Dimensional Learning For Remaining Useful Life Prediction Of Batteries Operating Under Various Environments, Rodrigo Benavides

Theses and Dissertations

In reliability, we typically define the standard operating conditions under which a component operates. However, the differences in battery operating conditions cause variability in the degradation patterns of identically manufactured batteries, rendering remaining useful life prediction a major challenge. To aid this task, several sensors are utilized to monitor battery state-of-health. However, traditional prognostics algorithms do not scale well to the volume of data generated. Furthermore, several authors do not explicitly consider operating environments in their prediction models. Therefore, we present a high-dimensional data analytics framework that integrates operating environment information for battery prognostics. This framework combines Multilinear Principal Component …

A Diminished Alliance: The Effects Of French American Relations On The Leadership Of Washington, Adams, And Jefferson 1789-1809, Eric Christopher Carlson

Theses and Dissertations

This research examines the relationship between the United States and France during the first three presidencies and how it influenced the leadership and decision-making of Washington, Adams, and Jefferson. Throughout the thesis, it is argued that the most critical developments in the United States during these presidencies were connected to diplomatic relations with the French along with each leaders own private, but often public, perceptions of the French. The two decades that these three leaders were in office witnessed significant transformation in U.S.-French relations, especially as the French Revolution spiraled into a full-scale European conflict that threatened American neutrality. In …

The Impact Of Positive Psychology Use Upon Gls Outcomes For People With Chronic Pain Syndromes, Timothy Michael Curtis

Theses and Dissertations

The essence of being human is realized by our discovery of meaningful purpose throughout each important stage of our lives. If we perceive that we lack this meaningful purpose in our lives, it could become a distressful source of suffering to our sense of well-being emotionally, cognitively and perhaps, spiritually. A strong indicator of well-being comes from a good evaluation we ascertain as to how well we believe outcomes in our lives are consistent with our goals and values, which is also known as satisfaction with life. Research findings indicate that the more someone experiences repeated negative life events, the …

Arginine Vasotocin And Corticosterone In Nesting And Non-Nesting Loggerhead Sea Turtles In X’Cacel-X’Cacelito Sanctuary, Krista Blair Reed

Theses and Dissertations

Sea turtles exhibit distinct behaviors before and after egg laying, however, not all individuals successfully oviposit. Some females display disruptions in their typical nesting behavior, returning to the water without laying eggs, which is referred to as a non-nesting emergence (NNE). NNEs can be due to external disturbances on the beach, but why they occur is often unclear. Arginine vasotocin (AVT) is a neuropeptide involved in various physiological processes, including stimulating smooth muscle contraction of the oviduct to facilitate egg deposition in nesting sea turtles. On the other hand, corticosterone is the primary stress hormone in sea turtles and is …

Machine Learning Applications For Evaporation Predictions From Small Reservoirs: Potential Water Savings For Lower Rio Grande Valley, Texas, Syed Muhammad Fahad Abdullah

Theses and Dissertations

Local-scale reservoirs are important to regional water balance, but these are often overlooked. This study presents a robust machine learning (ML) approach leveraging reanalysis datasets to estimate daily evaporation for local-scale reservoirs in semi-arid South Texas. Selected models were trained with daily lake evaporation model (DLEM) estimates and used climatic and reservoir-specific properties as feature input variables. The multi-reservoirs training approach ensured applicable model generalization. Results show promising predictive performance with R² values ranging from 0.55–0.67 (testing) and 0.64–0.78 (validation), NSE values ranged from 0.54 0.67 (testing) and 0.64–0.78 (validation), and RMSE values ranged between 1.52–1.80 mm/day (testing) and 1.22–1.58 …

Low-Cost Monitoring And Fingerprinting Of High-Powered Electric Systems, Kwabena Buamono Aboagye-Otchere

Theses and Dissertations

Electric motors are vital to industry, transport, and energy, yet their maintenance challenges persist. While traditional reactive maintenance leads to costly downtime and safety risks, predictive maintenance, especially through IoT and machine learning offers early fault detection and operational efficiency. However, this shift introduces security concerns due to unintended magnetic emissions from motors. These emissions, though useful for non-intrusive monitoring, can be exploited to eavesdrop on sensitive industrial processes. This dissertation explores the dual nature of magnetic emissions: their value in motor diagnostics and their potential as a security vulnerability. It demonstrates how emissions can identify motors, monitor health, and …

Computational Calculations On Zno (0001) And Zno (1010) Surfaces With And Without Pd Adatoms, Amit Aich

Theses and Dissertations

In this research work, first-principles density functional theory (DFT) was used to study O-terminated, Zn-terminated ZnO (0001) surfaces and non-polar ZnO (1010) surfaces. Both clean surfaces and those with Pd or PdO adatoms were examined. Adsorption was considered at O, Zn and hollow sites. After structural relaxation, we analyzed the electronic, optical and adsorption properties. The O-terminated ZnO (0001) surface has a larger band gap of 0.76 eV and p-type conduction. The Zn-terminated surface has a smaller band gap of 0.15 eV and shows n-type behavior. Pd adsorption modifies ZnO’s electronic structure in a site-dependent manner. On O-terminated surfaces, it …

Phenotypic Plasticity In Response To Abiotic Factors In Silverleaf Nightshade (Solanum Elaeagnifolium), And The Effectiveness Of North American Lacebug (Gargaphia Arizonica Drake And Calvo) As A Biocontrol, Marco Andre Silguero

Theses and Dissertations

Silverleaf nightshade (Solanum elaeagnifolium) is a widespread invasive weed in South Texas and other arid regions, where it reduces crop productivity, competes with native vegetation, and resists conventional control methods. Its ability to thrive across different environments is linked to phenotypic plasticity, allowing it to adjust growth and physiology in response to light and water availability. In this thesis, I examine the role of plasticity in S. elaeagnifolium under field conditions and evaluate the potential of the North American lacebug (Gargaphia arizonica) as a biological control agent. Field observations were used to measure plant traits such as height, stem thickness, …

The Effects Of A Tier 2 Intervention On The Behavior Of Elementary School Students Participating In Second Step: Enhancing A Schoolwide Social-Emotional Learning Curriculum, Charlotte Annalee Kennington

Theses and Dissertations

After reviewing the current research literature on the effects of social-emotional learning (SEL) on the behavior of elementary-age children, it was clear that there was limited research data on the effects of Tier 2 interventions designed to augment the effects of schoolwide SEL programs. Specifically, to what extent could a brief, group-delivered intervention improve the academic engagement, problem behavior, and socially appropriate comments of fifth-grade students receiving schoolwide SEL through Second Step in a traditional public school? Three fifth-grade students were recruited to participate in this study who all engaged in frequent problem behavior during Second Step lessons and throughout …

Molecular And Clinical Insights Into Role Of Gper In Hepatocellular Carcinoma (Hcc), Hossain Ahmed

Theses and Dissertations

Metabolic dysfunction–associated steatotic liver disease (MASLD), encompassing stages from steatosis (MASLD) to steatohepatitis (MASH), cirrhosis, and hepatocellular carcinoma (HCC), is the most prevalent chronic liver disease worldwide, yet molecular markers of progression remain limited. The G protein–coupled estrogen receptor (GPER), a non-genomic estrogen receptor with metabolic and anti-inflammatory roles, emerges as a candidate regulator in hepatic pathophysiology. In this Dissertation thesis, we have delineated for the first time clinicopathological assessment of liver biopsies across MASLD stages revealing a robust inverse correlation between GPER expression and disease severity. Higher GPER levels in early MASLD associated with favorable metabolic and biochemical profiles, …

Advancing Real-World Implementation Of The Well Optimized Linear Finder (Wolf) High-Speed Atmospheric Turbulence Compensation Method, Timothy Evan Coon

Theses and Dissertations

This dissertation advances the real-world implementation of the Well Optimized Linear Finder (WOLF) method for high-speed Atmospheric Turbulence Compensation (ATC). Atmospheric turbulence introduces phase aberrations into optical wavefronts and degrades image quality in terrestrial imaging systems. Traditional phase diversity methods are computationally intensive and poorly suited to real-time operation. The WOLF method addresses these limitations through a novel, point-wise formulation of the optical transfer function (OTF) as a structured autocorrelation of the generalized pupil function (GPF). This formulation enables the estimation of phase aberrations at individual spatial coordinates with distributed computational complexity.

The research begins by developing a MATLAB-based simulation …

Investigating Global Lightning Observed From Ground And Space, And Its Relationship To Solar Activity, Megan Diane Mark

Theses and Dissertations

The extremes of lightning, specifically lightning with long-lasting continuing currents and lightning with extremely high peak currents, are investigated from both ground- and space-based observations. Additionally, the potential solar influence on lightning is investigated on large spatial scales.

Continuing currents may occur following the impulsive flow of current during a cloud-to-ground (CG) return stroke and are usually low amplitude (from a few amperes to a few kiloamperes) and long duration (several to hundreds of milliseconds). Remotely estimating their duration from the electromagnetic fields measured by existing ground-based lightning locating systems (LLSs) is not possible, but some space-based lightning detection systems …

Designing A User-Centered Bias System To Enhance Media Literacy And Factual Accuracy, Anjali Majan

Theses and Dissertations

In an era of rapid news consumption, readers often struggle to detect bias and misinformation. This study examined whether interface design can support more critical engagement with news. We developed a progressive disclosure interface that encouraged users to reflect as they read by gradually revealing bias and factual cues. Participants were assigned to either Progressive Disclosure or Ground News. The experiment involved two phases. In the intervention phase, participants used an interface with support features. In the assessment phase, they completed tasks without the tool. We evaluated their performance using five measures: bias recognition accuracy, bias shift, factuality judgment, overlap …

Insights Gained From Applying Molecular Techniques To Gray Triggerfish (Balistes Capriscus Gmelin, 1789) In The Mexican Caribbean, The Southern And Northwestern Gulf Of Mexico, Geaceli G. Orive

Theses and Dissertations

This study focuses on Balistes capriscus (Gray Triggerfish), a reef-associated species dependent on hard-bottom habitats in the Gulf of Mexico (GOM). Using mitochondrial DNA barcoding and phylogenetic analyses, genetic structure across four sites was assessed: Rio Grande Valley (RGV), Veracruz, Chinchorro Bank, and Xahuayxol. Samples from RGV and Veracruz exhibited limited haplotype diversity, minimal nucleotide divergence, and weak genetic differentiation-patterns consistent with recent population expansion and ongoing connectivity within the GOM. While the study centered on B. capriscus, all individuals from Chinchorro and Xahuayxol unexpectedly grouped with Canthidermis maculata (Spotted Oceanic Triggerfish), suggesting misidentification, cryptic diversity, or taxonomic uncertainty in …

The Abduction Of Juan Manuel Fangio And Its Impact On The Cuban Revolution, Shalom Nissi Ramirez

Theses and Dissertations

On February 23, 1958, Juan Manuel Fangio, the five-time Formula One Champion, was kidnapped by the 26th of July Movement (M-26) in Havana, Cuba, during the Cuban Revolution. The kidnapping took place on the eve of the Havana Grand Prix as an act of sabotage against Fulgencio Batista's government. Fangio's abduction became a symbol of political resistance, challenging Batista's authority and raising the profile of M-26 as a revolutionary group. This thesis examines how the incident, amplified by worldwide media coverage, influenced international perceptions of the Cuban Revolution. It argues that using Fangio’s fame strategically helped accelerate awareness of the …

Multi-Theoretic Perspective Of Backer Decision-Making In Crowdfunding: Interplay Of Backer, Founder And Ai, Maliha Alam

Theses and Dissertations

Crowdfunding has become a transformative mechanism for financing innovation, connecting creators directly with backers while bypassing traditional funding barriers. Despite its rapid global growth, only about 33.7% of campaigns succeed, largely due to ineffective communication of value propositions and lack of backer engagement. This dissertation investigates the complex interplay between project founders, backers, and emerging AI technologies to understand the factors influencing donation intention and to enhance crowdfunding success prediction.

Adopting the behavioral decision-making framework, I draw on multiple theoretical perspectives- signaling theory, the dual-process model of persuasion, and the cognitive-affective trust framework to examine founder- backer interactions. Using a …

Investigation Of Wireless Communication Sub-Optimizing Factors And Ai-Based Optimization For Ber Reduction, Lalan Jee Mishra

Theses and Dissertations

The increasing demand for high-throughput, low-latency, and reliable wireless communication has led to significant advancements of cellular wireless technologies since the early ‘80s. However, in dynamic and interference-prone environments—particularly those involving Unmanned Aerial Vehicles (UAVs)—signal degradation due to pathloss, multipath propagation, co-channel interference, and weather-induced attenuation continues to undermine performance. These factors contribute to elevated bit error rates (BER), inefficient spectrum usage, and unreliable communication links, thereby limiting the practical utility of wireless systems in aerial applications. Traditional mitigation techniques, while effective under certain conditions, often fail to adapt to rapidly changing wireless environments. This shortcoming underscores the need for …

Commitment And Betrayal In Intimate Relationships: A Grounded Theory Analysis, Megan Van Alfen Brown

Theses and Dissertations

Commitment and betrayal are key aspects of a relationship that have impact on the quality or health of the relationship. The purpose of this paper was to use qualitative grounded theory methods to explore how commitment and betrayal are experienced in intimate relationships and to explore the outcomes of both. The data were taken from a larger project on healthy and unhealthy relationships where participants were recruited through convenience and theoretical sampling. Semi-structured interviews were conducted and constructivist grounded theory methods were used to code, generate, and refine prominent categories in the data. Findings revealed that commitment is experienced through …