Digital Commons Network^™

The Legacy Of Trauma: Exploring The Effect Of Generational Stress On Gut Health And Mental Well-Being In Black Women, Jocelynn Jones

Dissertations

This dissertation examines how generational trauma and chronic stress may relate to gut health and mood outcomes among Black women. Using a literature review design, this work brings together research on intergenerational trauma, gendered racism, Superwoman Schema, weathering, allostatic load, mood disorders, reproductive health disparities, and the microbiota-gut-brain axis. The central argument is that depression, anxiety, gastrointestinal symptoms, fatigue, reproductive vulnerability, and healthcare mistrust should not be understood as fully separate concerns when they may be shaped by shared stress conditions. The proposed integrated model does not claim that trauma directly causes gut dysbiosis or mood disorders. Instead, it suggests …

Pathways To The Streets: A Proposed Model Examining The Factors Influencing Gang Affiliation And Involvement Among Young Black Men In The United States, Ceauna L. Juarez

Dissertations

This literature review examined gang involvement among young Black men in the United States and explored the factors that contribute to joining gangs and the consequences that may follow. The first chapter provides a brief history of gang involvement in Black communities and introduces Erikson’s development model, self-determination theory, and the minorities’ diminished returns as the three theoretical frameworks. The second chapter discusses common challenges faced by young Black men who are currently involved in gangs or are at risk of joining. The chapter explores issues such as life expectancy after gang involvement, adverse childhood experiences, mental health concerns, and …

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, …

The Influence Of Leadership On Leader Retention, Ruiwei Li

Dissertations

Prior research provided limited insight into how mid-to-senior leaders experienced and interpreted leadership in relation to retention. This interpretative phenomenological analysis (IPA) study explored how mid-to-senior leaders in a U.S. retail organization experienced and interpreted upper management leadership in relation to their retention decisions. Five leaders with at least four years of tenure participated in semi-structured, in-depth interviews. Each account was analyzed idiographically before patterns of convergence, variation, and divergence were examined across cases. Findings showed that willingness to remain reflected continued internal growth and meaningful influence, supportive leadership that affirmed personal value while preserving agency, and relational and cultural …

Validation Of A Portable Electrochemical Sensor For Real-Time Soil Nitrate Monitoring In Cotton Rhizosphere, Mohammad Solaiman, Elvis D. Sangmen, Ali Reza Galib, Tushar C. Sarker, Anil C. Somenahally, Shawana Tabassum

Electrical Engineering Faculty Publications and Presentations

Soil nitrate (NO3) exhibits rapid spatial and temporal variability that conventional point-sampling methods cannot effectively capture, limiting timely nutrient management and plant stress detection. This study aimed to validate a low-cost, threedimensional- printed electrochemical NO3 sensor for continuous in-soil monitoring and to evaluate whether sensor-derived NO3 dynamics reflect plant physiological responses. For this purpose, cotton (Gossypium hirsutum L.) plants were grown in pots under greenhouse conditions. The sensor was evaluated in two sequential phases: an initial calibration phase to characterize sensor response across a broad NO3 concentration range, followed by a validation phase in the cotton plant rhizosphere. In the …

The Feeding Ecology, Habitat Use, And Monitoring Of Juvenile Alosines: Alewife (Alosa Pseudoharengus), Blueback Herring (A. Aestivalis), And American Shad (A. Sapidissima) In The Kennebec River, Maine, Brian Determan

All Student Scholarship

The Kennebec River, Maine is home to three species of anadromous fish of the genus Alosa: alewife (A. pseudoharengus) and blueback herring (A. aestivalis), jointly referred to and managed as river herring, as well as American shad (A. sapidissima). These ecologically, economically, and culturally important fish populations are depressed compared to historic levels and have been subject to extensive restoration efforts. While spawning adults have been well-studied, much less is known about the juveniles including whether they engage in resource partitioning to minimize competition and facilitate coexistence. In Chapter 1, I use stomach contents to compare diets as well as …

Flipping The Script: An Osint-Driven Framework For Smb Cyber Resilience, James A. Herrick

All Student Scholarship

Small and medium-sized businesses (SMBs) are critical economic drivers, yet they remain prime targets for cyber-attacks. Frequently operating under constraints involving financial resources, personnel, technical expertise, and time, SMBs have difficulty recognizing cybersecurity as a business risk warranting the expenditure of resources. Traditional cybersecurity consulting approaches meet with organizational resistance and fail to gain acceptance due to the SMB’s general underestimation of their own risk. This paper introduces a novel structured, repeatable framework designed to introduce a fresh mindset to conventional consulting. It repurposes Open-Source Intelligence (OSINT) reconnaissance - a toolset typically used by adversaries - for a constructive, empathetic …

The Problems Of Philosophy: Student Edition, Bertrand Russell, Landon D.C. Elkind Ed.

Philosophy & Religion Faculty Publications

This is a very lightly edited open educational resource version of The Problems of Philosophy by Bertrand Russell. It is lightly edited to approach (without yet meeting) the “truer” text of The Problems of Philosophy indicated by Kenneth Blackwell in the journal Russell.1 Student notes from the editor are included to make the text more suitable for college (or high school) students.

The basis for this edition is this 2004 version available in HTML through Project Gutenberg, produced by Gordon Keener and David Widger. After using Pandoc to convert this HTML file into TeX, I made some aesthetic edits (like …

Women In Banking Leadership: A Qualitative Study On Experiences In Breaking Through The Glass Ceiling, Thelma E. De León García

Theses & Dissertations

Although women make up a substantial part of the banking workforce, they remain underrepresented in leadership roles due to barriers like the glass ceiling that limit their career advancement. Despite women’s underrepresentation in leadership roles, little research has examined their perspectives on the enablers of career advancement in this sector. This qualitative descriptive study explores the factors women identify as critical in breaking these barriers to attain leadership roles. Ten semi-structured interviews of women who hold a leadership position in banking were thematically analyzed using Braun and Clarke’s (2006) six-step thematic analysis and NVivo software. Guided by feminist theory, the …

Do You Use Chatgpt? A Technology Acceptance And Segmentation Study Of Chatgpt Use Among Students At A South Texas University, Brian F. Waltman

Theses & Dissertations

Do You Use ChatGPT? A Technology Acceptance and Segmentation Study of ChatGPT Use Among Students at a South Texas University

August 2026

Brian F Waltman, Doctor of Philosophy in Education

The study investigates the integration of ChatGPT in academic settings, focusing on validating the TAME-ChatGPT instrument for a small private university in South Texas. This research aims to assess students' attitudes towards ChatGPT and identify the factors influencing its adoption and perceived usefulness. Previous studies have indicated ChatGPT's broad applicability across various sectors, including business, healthcare, and law, but its role in academia remains under-explored, particularly within the United States. …

Shifting The Paradigm Through Practice: A Co-Operative Inquiry Approach To Sustained Commitment In Nature-Based Education, Amanda Mcmickle

Theses & Dissertations

Nature-based learning has demonstrated positive outcomes for young children’s academic, social-emotional, and developmental growth; however, its implementation within school systems remains limited due to a lack of governance or organized oversight. This qualitative study examined how nature-based learning can be implemented with practical fidelity in Texas public schools while remaining aligned with state standards and school district policies. Grounded in Biophilia Theory, Attention Restoration Theory, and Experience Theory, the study explored educators’ perceptions as co-researchers into the practices and decision-making processes as they integrated nature-based learning into daily instruction.

Participants included experienced Texas public school educators teaching prekindergarten and kindergarten. …

Molecular Refinement Of The Taxonomy Of Pyrgulopsis Springsnails In Western North America, Michael K. Young, Kristine L. Pilgrim, Eric S. Miskow, Chante L. Lundskog, Kathryn E. Perez, Michael K. Schwartz

School of Integrative Biological & Chemical Sciences Faculty Publications

Springsnails in the genus Pyrgulopsis in western North America have long been a dilemma for taxonomists. Defining species boundaries has been complicated by the presence of undiscovered or cryptic taxa, range over- or underestimation, species complexes representing an unknown number of species, and named species synonymous with other taxa. To address these issues, we conducted an array of molecular species delimitation analyses using sequences from up to 2 mitochondrial and 2 nuclear genes from over 5000 specimens representing 140 of the 151 currently recognized taxa. These analyses reaffirmed most species hypotheses, favored synonymy for some taxa and redrawing of species …

Parkinson's Disease: Immunometabolic Control Points Across Neural, Vascular, And Peripheral Systems, Y Narvaez Irizarry Felix, Alondr M. Bermudez Adorno, Boris Ermolinsky, Lilia Kucheryavykh, Mikhail Inyushin

School of Integrative Biological & Chemical Sciences Faculty Publications

Parkinson's disease (PD) is a progressive neurodegenerative disorder most associated with degeneration of dopaminergic neurons in the substantia nigra pars compacta. Increasing clinical and experimental evidence, however, indicates that PD is a multisystem disease in which immune, metabolic, vascular, and peripheral nervous system dysfunction precede and shape motor circuit failure. Nonmotor manifestations, including olfactory impairment, sleep and autonomic disturbances, gastrointestinal dysfunction, and cognitive decline, often arise years before motor diagnosis, highlighting pathogenic mechanisms beyond dopamine deficiency alone. In this review, we synthesize evidence supporting the view that PD represents a disorder of chronic immunometabolic dysregulation rather than isolated neuronal loss. …

Analyzing The Effects Of Biodegradable Plastic Fragments On Maize Development And Defense Signaling, Ulysses Hampton

Theses

As plastic use shifts from non-degradable to biodegradable materials, the effects of biodegradable plastic fragments on crop physiology remain unclear. This study investigated how biodegradable plastic fragments influence maize development, transpiration, and defense signaling. Among five plastic types tested, poly(butylene adipate-co-terephthalate) (PBAT), polyhydroxyalkanoates (PHA), polycaprolactone (PCL), polylactic acid (PLA), and thermoplastic starch (TPS). PBAT and TPS showed the most significant effects and were selected for further oxylipin analysis. Results indicate that biodegradable plastic fragments can alter oxylipin signaling pathways in subtle but meaningful ways, suggesting that these materials are not inherently risk-free alternatives to conventional plastics.

Design Of A Continuum Robot Test Bed Utilizing Model-Free Sliding Mode Control, Joseph Paul Streib

Theses

Continuum robots are a class of continually deformable robots inspired by snakes and tentacles that are commonly used in medical, search and rescue, and exploration applications. The robots are highly nonlinear and difficult to accurately model and control. Precise control of the pose of a continuum robot is typically reliant upon a system model. This work introduces a novel model free control algorithm for continuum robots that only relies upon the robot’s position in task space. The derived controller is built upon the foundation of a preexisting model free sliding mode controller and the q-state parameterized piecewise constant curvature kinematic …

Impact Of Chiral Chain Conformations On The Self-Assembly Of Helical Polymers, Michael J. Grant

Theses

Polymers are a soft material with diverse applications across a spectrum of technologies including, but not limited to, packaging, drug-delivery, optics, lithography and templating. This ubiquity stems from over a century of in-depth theoretical and experimental investigations relating polymer size, stiffness and architecture to their emergent material properties. Interestingly, unlike small organic molecules where solution behavior is predominantly a function of hydrophobicity, in polymers, adjusting the aforementioned features can have a dramatic impact on their interactions with neighboring molecules. In turn, this allows for a tunable parameter space enabling the ability to achieve specific engineering goals. Yet, while the impact …

Forest Cover Effects On Canopy Interception Loss, Evapotranspiration, And Soil Infiltration On Stormwater Detention Basins, Alexandria N. C. Perez

Electronic Theses and Dissertations

Developing cities and increased impervious surfaces has resulted in more surface runoff and severe flooding. Harris County, Texas has experienced major flooding events, such as Hurricane Harvey in 2017 which was estimated to be a 9,000-year flood event. The Harris County Flood Control District (HCFCD) is dedicated to creating, maintaining, and finding new ways to reduce flooding damage such as the use of detention basins as green infrastructure. These basins are either populated by grass or are planted with various tree species. This study will identify the planted trees’ canopy interception loss, reference evapotranspiration, and enhanced soil infiltration effects within …

Examining Pain Catastrophizing, Mental Toughness, Self-Efficacy, And Perceived Pain In The Performance Of Female Athletes During Their Menstrual Cycle, Carissa R. Martinez

Electronic Theses and Dissertations

Pain is a universal unpleasant or negative experience influenced by physiological, psychological, and environmental factors. Disruption in the neural pathways of pain can affect athletic performance and lead to injury risks. Both negative attributes, such as stress, anxiety, and depression, and positive attributes, such as mental toughness and self-efficacy, contribute to pain perception and catastrophic thinking. The menstrual cycle also plays a critical role in pain catastrophizing, as hormonal fluctuations across different phases may hinder pain perception and performance in female athletes. However, research lacks the inclusion of how these factors impact female athletes. Using a non-experimental quantitative analysis, this …

The Rise Of Emergent Bilingual Students In Texas School Districts: A Longitudinal Analysis Of Outcomes, Resources, And Conditions, Ashley Ivy

Electronic Theses and Dissertations

This study examined district-level changes associated with rapid growth in Emergent Bilingual (EB) enrollment across 53 Texas public school districts between the 2012-2013 and 2022-2023 academic years. Using a quantitative, nonexperimental, longitudinal descriptive-comparative design, secondary data from the Texas Education Agency (TEA) were analyzed to assess changes in district demographics, staffing patterns, bilingual/ESL expenditures, academic achievement, graduation rates, and college readiness outcomes. Paired-samples t-tests were conducted to determine statistically significant mean differences across the 10-year period. Findings revealed significant increases in EB enrollment, Hispanic enrollment, and economically disadvantaged enrollment, indicating that participating districts served increasingly diverse student populations with …

Laponite Nanosilicate As A Platform For Antigen–Adjuvant Co-Delivery In Vaccination, Haoyu Qi

McKelvey School of Engineering Graduate Student Theses & Dissertations

Nanosilicates are two-dimensional, charged nanomaterials with tunable surface chemistry that enable electrostatic interactions with proteins and nucleic acids. These properties make Laponite nanosilicate a promising platform for vaccine delivery, where coordinated antigen–adjuvant presentation and lymph node delivery are important for shaping immune responses. This thesis investigated nanosilicates as scaffolds for lysozyme-based antigen delivery and co-delivery with CpG.

The preparation method reduced the apparent size of the NS–Lys–CpG complex at pH 10, although neutralization to pH 7 promoted larger aggregate formation. In vivo IVIS imaging after footpad injection showed persistent Cy7-associated fluorescence at the injection site for up to three weeks …

Quicknotes August 2026, Southern Adventist University

QuickNotes – Advancement e-Newsletter

QuickNotes is an e-newsletter that comes from Advancement at Southern Adventist University. The August 2026 edition features Southern alumni serving in Kenya.

Exploring The Paradoxical Association Between Chest Ct Pulmonary Involvement And Olfactory Dysfunction In Covid-19 Patients: A Prospective Cross-Sectional Study, Abdolkarim Ghadimi-Moghadam, Saed Askari, Mohammad Amin Ghatee, Alireza Mortazavi, Saeed Javdansirat, Ali Ghadimi Moghadam, Hassan Vafapour, Zaker Salehi, Seyed Mohammad Javad Mortazavi, Lembit Sihver

Informatics and Engineering Systems Faculty Publications

Background and Aims: Olfactory dysfunction (OD) is common in COVID-19, yet its relationship with pulmonary involvement remains inconsistent. We evaluated the association between CT-based lung involvement and OD in laboratory-confirmed COVID-19.

Methods: In a prospective cross-sectional study (Yasuj University of Medical Sciences hospitals; December 26, 2021–May 22, 2022), OD was assessed using the CCCRC protocol and pulmonary involvement was categorized using a CT lung involvement score. Associations were examined using chi-square testing (categorical) and ANOVA where appropriate (α = 0.05).

Results: Among 120 patients (60 male/60 female; mean age 43.17 ± 14.76 years), 71 (59.2%) had hyposmia, and none had …

The Influence Of Ecological Pest Management Practices On Pests And Natural Enemies Under A Cabbage–Garden Pea Rotational System In Central Kenya, Peter Nyakundi Mageto, Milka Kiboi, Monicah Mucheru-Muna, Felix Matheri

All Peer-Reviewed Publications

Pest pressure is a major constraint on crop production in Sub-Saharan Africa, where smallholder farmers rely heavily on synthetic pesticides with potential environmental and health risks. Ecological pest management practices (EPMs) have been proposed as sustainable alternatives, although field-based evidence is limited. This study evaluated pest and natural-enemy responses to EPMs in a cabbage–garden pea rotation system over six years (2020–2025) in Central Kenya. Four treatments were assessed: homemade botanical extracts (Botanicals), coriander intercropping (Intercrop), botanical extracts combined with coriander intercropping (Botanicals + Intercrop), and a control. In cabbage, ecological treatments often recorded lower aphid and diamondback moth abundance and …

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 …

At Risk Students: Ensuring A Successful Transition Into High School, Angela Espada

Education Theses and Dissertations

This Improvement Science Dissertation in Practice concentrated on the persistent problem of freshman course failure at a large, diverse, Title I high school serving a military-connected community in Central Texas. Although intervention programs existed, an increasing number of ninth-grade students were consistently failing one or more courses during their first year of high school, which revealed several gaps in the campus’s system of support. The Improvement Science framework and two Plan-Do-Study-Act (PDSA) cycles were used to examine the factors contributing to freshman course failure and to assess the interventions implemented to improve academic success as students transitioned into high school. …

What Fire Reveals: A Portfolio Of Integrated Practice, Harm Reduction, And Liberation-Centered Social Work, Jackie Brittain

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

The Impact Of Liberalism On State Hard Power, Allen Wayne Hammerquist

Graduate Program in International Studies Theses & Dissertations

This study examines the impact of liberalism on innovation, corruption, and, subsequently, state hard power in the international order. It hypothesizes that political, economic, and information freedoms facilitate the evolution of ideas and reduce corruption in society, resulting in a more efficient economy and greater wealth, income, and GDP per capita and, subsequently, greater state economic and military power. It employs four basic statistical models. The first two models examine the statistical relationship between domestic freedoms and innovation and corruption. They use a variety of metrics to measure the three key types of power that constitute the pillars of Western …

Attentional Bias During A Novel Alcohol Cue Virtual Reality Paradigm, Ryan M. Sullivan, Benjamin S. Mckenna, Weichen Liu, Arwynn Mckinty, Camarin Laurance, Craig R. Rush, Nadir Weibel, Kelly E. Courtney

Psychology Faculty Publications

Background: Attentional bias to alcohol cues is largely investigated using pictorial cues (i.e., two-dimensional images). The addition of eye-tracking metrics has improved these investigations yet are limited by a lack of naturalistic cues. Virtual reality (VR) can theoretically improve ecological validity through three-dimensional alcohol object presentation while utilizing eye-tracking metrics. This report sought to test the construct validity of the Alcohol Cue VR paradigm in evoking subjective craving and attentional bias through measurement of eye-gaze characteristics. Methods: Participants (n = 105, 53% male, M_age = 38), with varying alcohol use histories, underwent the Alcohol Cue VR paradigm, an alcohol …

High Biochar Rate Improves Water Retention In Some Environmentally Sensitive Soils, Samundra Sigdel

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Improving water retention and other hydraulic properties is key to managing soil water and sustaining crop production under fluctuating and extreme weather events. We assessed how wood biochar (836 g C kg^-1) applied at 0, 6.25, 12.5, 25, and 50 Mg ha^-1 affected: i) soil hydraulic properties after 5 years and ii) corn and soybean yield, and biomass production of cereal rye cover crop (CC) and CC mix (cereal rye, radish, and winter pea) in sandy, sloping, and semi-arid soils in the central U.S. Great Plains over 6 years. Biochar affected field saturated hydraulic conductivity (K_{sat …}

Modeling Intercellular And Intracellular Organization And Dynamics Of The Bacteria Escherichia Coli : From Population Dynamics In The Gut Microbiome, To Condensate Formation In Starved Cells, Alberto Alonso

Theses

Escherichia coli is a predominantly non-pathogenic species of bacteria present in the gut of most healthy adults. It plays a critical role in the health of the gut microbiome and is also widely used as a model organism in microbiology and synthetic biology studies. This thesis discusses results from two ongoing projects on E. Coli organization and emergent biophysical properties at two very distinct length scales. The first project focuses on using genetically modified engineered E. coli bacteria for early detection and intervention in colorectal cancer (CRC), a significant public health issue in the US. The success of these engineered …