Digital Commons Network^™

Copula-Based Tests For Assessing The Association Between Genetic Variants And Mixed Phenotypes, Martin Amoah

Open Access Theses & Dissertations

High-dimensional omics studies increasingly involve heterogeneous data types and phenotypes, which traditional association methods struggle to model jointly due to incompatible marginal distributions and complex dependence structures. This thesis develops a unified copula-based framework for assessing associations between genetic variants and mixed phenotypes by decoupling flexible marginal models from their joint dependence structure. While previous copula-based approaches in this setting have focused largely on continuous and binary traits, we extend these methods to a broader class of phenotype pairs. Specifically, we introduce new association tests for bivariate outcomes involving ordinal–continuous, nominal–continuous, and survival–continuous combinations. The proposed methodology derives joint density …

Modeling Aerosol Transport During High Particulate Matter Episodes In El Paso-Juarez Region And Mitigating Mining-Related Emissions Of Rare Earth Elements (Rees) To The Air, Suzan Aranda Luna

Open Access Theses & Dissertations

This dissertation examines the use of the HYSPLIT model to develop a methodology for the transport and dispersion of air masses affecting particulate matter (PM) concentrations in the El Paso Region, and bioleaching experiments as an alternative to mitigating rare-earth concentrations in the air. Chapter 2 describes the study methodology, 3 and 4 cover the modeling methodology using two-representative high PM2.5 episodes, occurring on February 28, 2024, and June 19, 2024, respectively. These sections encompass the analysis of backward trajectories using four different meteorological datasets to build trajectory frequency maps, the exploratory model analysis of modeled outputs from lower to …

Mi Cuerpo, Mi Salud: A Brief Sexual Health Pilot Intervention For The Promotion Of Latina Sti Testing, Ariana Cervantes-Borges

Open Access Theses & Dissertations

Disparate rates of sexually transmitted infection (STI) contraction among Latinas and emerging adults highlight glaring public health issues that warrant brief and digital STI testing interventions to promote service acquisition. Latinas may experience a greater negative impact of STIs compared to men, indicating a need to target this population group. Prior studies have noted STI testing intentions and acquisition in Latina populations to be largely impacted by four components: education, stigma, social support, and self-efficacy. Given recent funding cuts for STI research, a brief and digital intervention may circumvent costs associated with traditional intervention implementation. The current study aimed to …

Unmixing In Very High Spatial Resolution Hyperspectral Images, Ana C. Chavez Lopez

Open Access Theses & Dissertations

Hyperspectral Imaging (HSI) captures hundreds of contiguous narrow wavelength bands across the optical region of the electromagnetic spectrum collecting the spectral signature of materials in the field of view of the sensor enabling detailed analysis of each pixel's spectral signature. Satellite or airborne remote sensing systems often capture imagery with low to moderate spatial resolution (LMSR). At these resolutions, the measured spectral signature is a mixture of the signatures of the materials within a single pixel. This mixing of spectral information makes analysis and material identification difficult. Hyperspectral unmixing is an analysis technique that decomposes a pixel's spectrum into constituent …

Mbse For Process Analytical Technology- Bwon Analysis Case Study, Arnaldo Garcia Cervantes

Open Access Theses & Dissertations

Volatile Organic Compound (VOC) emissions from industrial sources, particularly Benzene, present significant environmental and public health challenges. Regulatory frameworks, such as the U.S. Environmental Protection Agency’s Benzene Waste Operations NESHAP (BWON), mandate strict monitoring of control devices, specifically carbon adsorption canisters, to prevent emission breakthrough. However, current industry practices rely heavily on manual Method 21 testing, a labor-intensive process that creates lagging indicators and increases the risk of non-compliance events. This thesis proposes the design and development of an on-line, automated fugitive emissions monitoring system tailored for carbon canisters using Model-Based Systems Engineering (MBSE). Utilizing the Object-Oriented System Engineering Method …

Development And Application Of Deep-Level Spectroscopy Systems For Characterizing Irradiation-Induced Traps In Gallium Nitride Schottky Diodes, Donald Hodgson

Open Access Theses & Dissertations

Crystal defects are a natural consequence of the gallium nitride (GaN) crystal growth process and may also be introduced by exposure to radiation environments, leading to degradation of device performance. Detection of these defects are completed through various methods of characterization including Deep-Level Transient Spectroscopy (DLTS) and Deep-Level Optical Spectroscopy (DLOS). In this work, a custom DLOS measurement system was developed and validated to investigate deep-level defects in GaN Schottky diodes before and after irradiation. GaN Schottky diode structures and wafer layouts were designed based on baseline technology provided by the University of New Mexico (UNM) and modified to meet …

Exploring Intergenerational Conflicts Association Among Cultural Values, Bicultural Identity Integration, And Alcohol Use Severity Within Hispanic College Student Drinkers, Ashley Marie Lindquist

Open Access Theses & Dissertations

Hispanic college students are at higher risk of experiencing family conflict [i.e., intergenerational conflict (IGC)] and engaging in increased alcohol use as they begin adopting values aligned with higher education institutions. Furthermore, minoritized students often develop an additional cultural identity influenced by mainstream values, resulting in a form of biculturalism. Research has sought to understand the navigation of values and identity through the concept of Bicultural Identity Integration (BII). However, limited research has examined the effects of BII on cultural values, IGC, and subsequent alcohol use among Hispanic college students. The current study explored the direct and indirect effects of …

Investigation Of Hot Mix Asphalt Aging Effect On Binder Performance, Zahra Mohajeri

Open Access Theses & Dissertations

Asphalt roads continuously experience physicochemical changes under the combined influence of oxygen, heat, ultraviolet (UV) radiation, and water. Oxidation increases molecular polarity and association, causes maltenes loss, and continues hardening the asphalt binder, reducing ductility, stress-relaxation capacity, and resistance to cracking (Petersen 1982; Colbert and You 2012). Because aging is a cumulative process beginning at plant production, accelerating during construction/compacting, and continuing in service, the laboratory tests and indices must capture the extent of short-and long-term aging to support performance-related specification and Balanced Mix Design (BMD) (AASHTO R30 2022; Kim et al. 2017). This chapter reviews: (i) laboratory and field-representative …

A Combined Multi-Isotope And Machine Learning Approach To Determine Groundwater Salinity And Solute Sources, Lower Valley Area, El Paso County, Texas, Gloria A. Ortiz Gamboa

Open Access Theses & Dissertations

Groundwater salinization is increasingly troublesome in aquifers in and around El Paso, Texas, where concern for available water resources has grown due to frequent droughts and increasing population. Both groundwater and surface water have experienced an increase in total dissolved solids (TDS), a trend that can pose future health and economic problems for residents who primarily rely on groundwater. To address this issue, this research focuses on the Hueco Bolson Aquifer and the Rio Grande Alluvial Aquifer within the Lower Valley area of El Paso, Texas, utilizing a multi-analysis approach to evaluate and determine solute sources and their possible end-members …

Relationships Between Social Determinants Of Health And Pain Outcome Changes After Exercise In Adults With Knee Osteoarthritis, Klarissa Siebert

Open Access Theses & Dissertations

Background: Knee osteoarthritis (KOA) is a common musculoskeletal disease with pain as the primary symptom. KOA pain is a major contributor to disability and reduced quality of life and has been associated with social determinants of health (SDOH) variables. As for treatments of KOA pain, exercise such as stationary cycling is a first-line and recommended treatment. However, limited research has examined how SDOH influence pain outcomes following such interventions. Objective: This study investigated whether income level, education level, employment status, acculturative stress, and perceived ethnic discrimination are associated with changes in pain following a standardized cycling ergometer exercise in adults …

“Have You Ever Dreamed Of A Better Version Of Yourself?”: A Psychoanalysis Of Representations Of Women Across Age In Horror Films, Weston Blu Stogner

Open Access Theses & Dissertations

The purpose of this study was to examine representations of older and younger women in four horror films: The Leech Woman (1960), The Shining (1980), The Witch (2015), and The Substance (2024). Regarding horror film narratives, research suggests aged women are often depicted as wicked and lacking mental faculties, while young women with idealized and privileged body types are often fetishized. According to Creed (2023), these harmful, oppressive depictions are informed by male anxieties about women in patriarchy. When women are presented as monstrous (i.e., the monstrous-feminine) in horror films, they symbolize these anxieties. Therefore, all four films selected for …

Evaluating Healthcare Professionals’ Perceptions Of The Ist Algorithm In Maternal-Fetal Health Clinic: Usability And Satisfaction, Terri Taylor

Doctor of Nursing Practice Projects

Background: Standardizing substance-use screening in perinatal care is essential for optimizing clinical decision-making and promoting equitable patient outcomes. To address gaps, the Integrated Screening Tool (IST) algorithm was introduced in a Maternal–Fetal Medicine (MFM) clinic. However, 2023 data revealed inconsistent utilization. Evaluation Question: This Doctor of Nursing Practice (DNP) project evaluated: (1) How do nurse practitioners, medical doctors, and registered nurses perceive the usability of the IST algorithm for standardized drug screening in pregnancy? (2) How do these providers rate their satisfaction with the IST algorithm in managing patients with positive drug screens? Methodology: A cross-sectional survey was conducted with …

Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 50 – Zelia Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Analyzing Patterns In Hofstede’S Cultural Dimensions Towards Individual Ai Receptiveness For Affective Experiences, Maggie Yang

Master's Theses

The use of artificial intelligence (AI) has significantly advanced efficient decision-making, with trust in algorithmic decisions shown to vary by cultural upbringing [1]. As AI becomes increasingly embedded in everyday life, it is essential to examine how cultural values affect trust in AI in subjective contexts that extend beyond purely quantitative analysis, like the personal interpretation of art. This work utilizes Hofstede’s cultural dimensions to investigate potential patterns in receptiveness towards AI predictions during art interpretation, providing insight into individual susceptibility to bias in AI-assisted affective analysis.

The study leveraged a cultural dimension survey and a custom Java program connected …

Associations Between Feed Efficiency And Feeding Behavior In Yearling Angus Bulls In A Competitive Environment, Amelia Katz

Master's Theses

Feed efficiency in beef cattle is a complex trait shaped by physiological, behavioral, and social factors that influence how animals access and utilize feed resources. This study examined feed efficiency classification and how it is influenced by feeding behavior, competitive interactions, and bunk approach patterns in yearling Angus bulls housed in a drylot over two years. Bulls were grouped into high and low feed efficiency categories using residual feed intake and feed conversion ratio within pen and year (n = 40 per year; n = 40 per treatment). Continuous electronic monitoring quantified feeder visitation, feeding duration, intake, and rate. A …

Is Military Service A Social Mobility Mechanism? Military Participation And Socioeconomic Benefits—Recommended Research And Data Resources, Corri Zoli, Linda Euto, Rosalinda Maury

The Lender Center for Social Justice

This research brief shares research and data resources that examine how military participation, particularly professional training and education, function as mechanisms for social mobility, leading to higher socioeconomic advantages among U.S. military members and veterans, including minorities.

The Effects Of Yoga In The Classroom On Social-Emotional Learning And Student Focus, Emily Wall

Capstones, Research Projects, and Curricula

This study investigated how students respond to brief yoga and breathwork practices being introduced in a high school biology classroom, specifically looking at the impacts to students’ social-emotional competencies, engagement, and academic focus. The theory of action guiding this inquiry was that embedding yoga practices into the classroom would decrease physical tension, decrease anxiety, increase self-esteem, and improve concentration, thus supporting their ability to engage and focus during learning tasks. The inquiry examined how students respond to a daily 10-minute yoga sequence implemented over three weeks (six class sessions). Data was collected through multiple tools, including a researcher-designed pre- and …

Annual Report, Fiscal Year 2024/2025, Tennessee. Department Of Safety & Homeland Security.

Annual Report

No abstract provided.

Nene Leakes As A Modern Medea, Jazzlyn L. White

Electronic Theses, Projects, and Dissertations

This paper examines how The Real Housewives of Atlanta functions as a modern form of Greek tragedy through its portrayal of Nene Leakes, whose rise and fall within the Bravo franchise mirrors the tragic arc of Euripides’ Medea. Both Medea and Leakes represent women who defy the systems that once empowered them Medea through her rebellion against patriarchal and familial structures, and Leakes through her public confrontation with the television industry that made her a star. By analyzing these two figures through rhetorical, feminist, and media studies frameworks, this paper argues that reality television operates as a contemporary stage …

Synthesis Of Phenyl-Substituted Zinc Dipyrrin Photosensitizer For Carbon Dioxide Reduction, Stephen Ankomah

Electronic Theses and Dissertations

The release of CO₂ from fossil fuel combustion drives the need for its conversion into more sustainable options like CO and CH₄ via photocatalytic reduction. This process requires a catalyst, sensitizer, and electron donor. Zinc dipyrrin-based complexes are promising photosensitizers, offering an alternative to expensive, rare-metal-based systems. Most first-row transition metal dipyrrin compounds have short excited-state lifetimes due to rapid nonradiative decay, but Zn(II) dipyrrin complexes stand out. With a d¹⁰ configuration, they lack deactivating ligand field states and can access long-lived triplet states through a charge-separated intermediate. A phenyl-substituted Zn(II) dipyrrin complex was synthesized and studied using NMR to …

Divergent Responses Of Branched-Chain And Straight-Chain Lipid Membranes To Butanol Stress Revealed By All-Atom Molecular Dynamics Simulations, Joshua Olaf Aggrey

Electronic Theses and Dissertations

Membrane integrity under chemical stress is critical to cellular survival and industrial microbial bioproduction, yet the molecular basis of bilayer resilience remains poorly understood. Using all-atom molecular dynamics simulation, we compare the effect of increasing concentrations of 1‑butanol on membranes composed of straight-chain (1,2-dipalmitoyl-sn-glycero-3-phosphocholine, DPPC) and branched-chain (1-anteiso-palmitoyl-2-palmitoyl-sn-glycero-3-phosphocholine, APPC) lipids, which differ in the point of attachment of a single methyl group. In the absence of butanol, both membranes exhibit well-ordered architectures consistent with experimental benchmarks; however, under increasing solvent stress, their behaviors diverge markedly. DPPC membranes display gradual thinning, modest area per lipid …

Summer Melt: The Transition Of Rural Students To Post-Secondary Schools, Niquan Alston

Dissertations

Rural high-achieving students face unique challenges as they prepare to transition to college. While many graduate with aspirations for higher education, a significant number fail to transition to college in the fall due to barriers that arise between high school graduation and college enrollment. Rural schools, particularly those serving low-income populations, frequently lack the resources, counseling, and exposure opportunities that help students navigate the transition from high school to postsecondary education. These circumstances leave students to manage financial barriers, incomplete paperwork, limited support, and the pressures of balancing family and community responsibilities. Their lived experiences shape the way they respond …

A Joint Mindfulness And Growth Mindset Intervention For Reducing Math Anxiety For Pre-Service Elementary Teachers, Evan Czysz

Dissertations

Pre-service elementary teachers (PSTs) have often exhibited high levels of math anxiety, which can negatively influence their confidence, learning, and future teaching in mathematical settings. The purpose of this phenomenological case study was to understand the influences an intervention focused on growth mindset and mindfulness-based practices has on preservice elementary school teachers’ perceptions of mathematics at a mid-sized university in the Rocky Mountain Region of the United States, and sought to answer the following questions: Q1 Does a joint mindfulness-based and growth mindset intervention impact pre-service teachers’ levels of math anxiety? Q2 What were pre-service elementary teachers’ experiences with a …

Making Meaning Of The Dissertation Process: An Interpretative Phenomenological Analysis Study Exploring Counselor Education Students’ Experiences And Beliefs About The Traditional Dissertation Process, Brianne Dixon

Dissertations

The traditional dissertation is a cornerstone of doctoral education yet is a process that is surprisingly under-researched. The purpose of this interpretative phenomenological analysis (IPA) study was to explore the lived experiences of doctoral students in counselor education and supervision (CES) programs with the dissertation process. More specifically, this study sought to understand the meaning seven doctoral students made of the process and this study explored counselor educator doctoral students’ beliefs about the traditional dissertation process after they completed the dissertation This study explored three research questions. Q1 What were the lived experiences of Counselor Education and Supervision (CES) doctoral …

The Coping Of Special Education Directors In The Western United States, Emily Mrazek Jones

Dissertations

The special education director in a school district has a wide-reaching role. Directors rely on extensive knowledge of educational law, instruction, child development, employee supervision, school finance, and more to positively impact the education of students with disabilities. Due to the extensive nature of the role, the practice of special education administration has been found to be stressful, and many practitioners experience burnout. Thus far, research has explored the nature of the role, the reasons for special education director stress, and directors’ preferences on surveys of positive coping strategies, but has not stepped back to ask the directors how they …

Culturally Responsive Functional Communication Training For Asian Families: A Single-Subject Design Study, Guofeng Shen

Dissertations

Children with disabilities, such as autism spectrum disorder (ASD) and intellectual disability (ID), frequently experience challenges related to social communication and are at increased risk of exhibiting challenging behaviors (CBs), particularly when they lack effective means to express their needs and desires. Functional communication training (FCT) is an evidence-based intervention shown to reduce CBs by teaching functional communication skills. However, limited research has explored the use of culturally responsive adaptations of FCT (CRFCT), particularly in the context of training parents from culturally, linguistically, and economically diverse backgrounds. This study addressed this gap by examining the effects of culturally responsive FCT …

Exploring The Use Of Culturally And Linguistically Responsive Practices Within The Multi-Tiered System Of Support (Mtss) Framework When Supporting Students With Disabilities At A Dual Language Immersion School, Sylvia Simmons

Dissertations

The integration of culturally and linguistically responsive practices (CLRP) within the Multi-Tiered System of Support (MTSS) framework has been recognized as a promising method for improving learning opportunities for diverse students. However, little to no research has been conducted on the intersection of CLRP within the MTSS framework to support students with disabilities in dual language immersion schools (DLI). This lack of research has posed challenges for educators seeking effective strategies to support diverse learners with disabilities in such settings. Therefore, the purposes of this qualitative case study were to (a) explore how a dual language immersion school utilizes the …

Student Engagement In High School Mathematics Blended Learning Classrooms, Therese A. Rinehart

Dissertations

Engagement is a student’s interest, participation, and motivation in the learning process and is a cornerstone of success in the classroom. The COVID-19 Pandemic overturned the traditional classroom, making the task of fostering engagement nearly impossible. Although pandemic-related research has largely focused on mental health and academic achievement, less attention has been given to instructional models promoting engagement in remote learning environments. Self-directed learning (SDL) is one model offering students digital autonomy and access to teachers and peers. This study examined the longitudinal data of student perceptions of their engagement through the COVID-19 Pandemic at an alternative high school and …

A Phenomenological Study Of The Lived Experiences Of Administrators, Teachers, And School Personnel With Justice-Involved Students, Kandra Cosby

Dissertations

This hermeneutic phenomenological research study examined the experiences of six educational professionals, including administrators, teachers, and support staff, as they supported justice-involved students in their reintegration into traditional public schools. The study was based on Bronfenbrenner’s ecological systems theory, Hirschi’s social control theory, and Glasser’s choice theory. Semistructured interviews were used and revealed six themes: (a) fighting systems while trying to serve students, (b) relationships as safety nets, (c) protecting students from the stigma of judgment, (d) fighting bureaucratic silos, (e) philosophy wars in action, and (f) seeing the whole child. The findings indicated successful reintegration was less connected to …

Teacher Leadership And Specially Designed Instruction: A Phenomenological Study Of The Lived Experiences Of Teacher Leaders And Special Education Teachers In Elementary Settings, Tangie M. Rahming

Dissertations

This qualitative phenomenological study examined the lived experiences of teacher leaders and special education teachers as they implemented Specially Designed Instruction (SDI) in elementary school settings. Despite SDI being a federally mandated component of the Individuals with Disabilities Education Act (IDEA), research consistently shows wide variation in how teachers interpret, deliver, and sustain SDI in real classrooms. Limited professional development, inconsistent coaching structures, and varying understandings of SDI across schools contribute to persistent gaps in implementation fidelity. To address these challenges, this study explored how teacher leaders support SDI implementation and how special education teachers make meaning of their instructional …