Digital Commons Network^™

Nesting Ecology And Responses To Snag Resource Fluctuations Of Red-Headed Woodpeckers In Working Pine Forests, Zoe Elise Scott

Theses and Dissertations

Southeastern working pine forests provide opportunities for sustainable management that balance conservation and economic objectives. Red-headed woodpeckers (Melanerpes erythrocephalus), as primary cavity excavators, play a disproportionate role in forest ecosystems, making them an ideal focal species for evaluating management strategies. From 2024-2025, we monitored 103 nesting attempts in loblolly pine (Pinus taeda) forests of Mississippi and Alabama, assessing nest site selection and survival. Nests were concentrated in early successional stands, with selection favoring taller snags with advanced decay characteristics, greater understory cover, and north-to-west cavity orientation. Nest survival increased with reduced cavity accessibility. Simulation models of varying snag retention levels …

Bridging The Gap: Implementing A Modified Pacing Guide For Students 2-3 Grade Levels Behind In An Accelerated Program, Crystal T. Tyson

Theses and Dissertations

Accelerated secondary programs serving students performing two to three grade levels below proficiency often operate within compressed instructional timelines aligned to state accountability requirements. However, limited research examines how state-level policy structures influence district pacing practices within these settings. The purpose of this capstone study is to examine how accountability frameworks shape district pacing implementation and how pacing compression affects instructional flexibility for accelerated learners. Guided by a policy-to-practice conceptual framework linking state accountability systems, district pacing structures, and instructional impact, the study addresses three research questions focused on (a) policy influence on pacing design, (b) structural implications of pacing …

Effects Of Melatonin Supplementation On Exercise Induced Stress In Horses, Hannah Clark Valigura

Theses and Dissertations

Exercise is a necessary component of athletic conditioning but imposes substantial physiological stress on horses, resulting in oxidative stress, inflammation, muscle damage, and thermal strain that can impair performance and recovery. Melatonin, a neurohormone with potent antioxidant and thermoregulatory properties, has been proposed as a novel nutritional strategy to mitigate these effects. This dissertation aimed to (1) characterize serum melatonin concentrations following oral supplementation, (2) evaluate the effects of melatonin on oxidative stress, inflammation, and muscle damage biomarkers after exercise, and (3) examine its influence on physiological parameters during exercise under warm weather conditions. Across a series of controlled experiments …

Closing The Implementation Gap: A Research-Based Playbook For High-Quality Teacher Mentoring Programs, Angela White

Theses and Dissertations

This capstone project addresses the ongoing problem of inconsistent, unstructured, and unsustainable mentoring practices in K–12 schools, which contribute to new teacher burnout, uneven instructional support, and high turnover rates. The purpose of the project is to design a research-based mentoring implementation system that strengthens novice teacher support while building mentor capacity. The study is guided by the Consolidated Framework for Implementation Research (CFIR) and informed by ERIC implementation strategies, which together provide a structured lens for understanding barriers, facilitators, and effective actions related to mentoring implementation. The research questions explore how intervention characteristics, school-level contextual factors, and implementation processes …

Protecting Galápagos’ Marine Ecosystems: Biosecurity And Network Design Against Invasive Species From Tourist Vessels, Marnie L. Campbell, T.U. Le, Chad Hewitt

Research outputs 2022 to 2026

The modern world is characterized by high connectivity, enhancing economic productivity, and global communication, but outpacing our ability to manage its consequences. This connectivity increases the risk of pathogen, pest, and invasive species transmission. In the Galápagos islands, Ecuador, tourist vessel networks operate with limited restrictions and connect high conservation value locations, boosting tourism and the economy. These vessels frequently travel between multiple islands, leading to moderate connectivity and high vessel promiscuity. To prevent the spread of invasive species via these vessels, we propose a biosecurity system that combines social network tools with risk management frameworks that balances environmental protection …

Impact Of Travel Time To Health Facilities On Perinatal Outcomes: A Systematic Review With Narrative Synthesis And Meta-Analysis, Sanam Roder-Dewan, Marwa Ramadan, Paul Ouma, Alexander Manu, Emelda A. Okiro, Natalie Strobel, Bibian N. Robert, Emily Odipo, Peter M. Macharia, Anthony Danso-Appiah, David C. Goodman, Queen Dube, Gagan Gupta, Hema Magge, Karen Edmond

Research outputs 2022 to 2026

Background: Evidence-based global guidance on safe travel time for small or sick newborns who require transfer to health facilities after birth is lacking. A two-hour threshold is frequently cited in low- and middle-income countries (LMICs), while 30 minutes is commonly used in high-income countries (HICs). Although these thresholds are widely referenced, their empirical basis and consistency across levels of newborn care and journey types have not been systematically examined. This study synthesises the evidence linking travel time and perinatal outcomes. Methods: We conducted a systematic review with narrative synthesis and meta-analysis to assess the impact of travel time or distance …

Harnessing Mechanobiology Of Resident Stem Cells To Refine Cell Based Therapeutics, Dakota R. Kamm

WUSM Theses and Dissertations – All Programs

Mesenchymal stem cells (MSCs) are resident cells residing with many adult tissues such as adipose tissue and bone marrow that have the potency for multiple lineage differentiation as well as the capacity to secrete a litany of beneficial factors to maintain homeostasis and promote tissue repair. Since 1995, MSCs have been used therapeutically to treat a variety of conditions from osteoarthritis to heart disease to muscle pathologies. Great leaps have been made in improving MSC-based therapies through optimization of culture methods and select enrichment of cellular subpopulations. More recently, the physical microenvironment of tissue in vivo and culture conditions in …

Púchica! Central American Students Navigating A Community College In The Southwest, Reina Ferrufino

UNLV Theses, Dissertations, Professional Papers, and Capstones

This qualitative study centers the lived experiences of U.S. Central American students at a large community college in the Southwestern United States. Guided by Latinx Critical Race Theory (LatCrit) and Garcia’s (2023) Servingness framework, the study examines how institutional structures—including classrooms, student support services, and co-curricular spaces—shape students’ experiences of belonging, access, and recognition. Grounded in LatCrit, particularly its attention to racist nativism, the study situates students’ experiences within broader racialized and migration-related contexts. Data were collected through semi-structured interviews with eight Central American students and recent alumni. Findings reveal patterns of misrecognition, generalized understandings of Latinidad, and navigational challenges …

Constructing Imperial Connectivity: State Infrastructure Projects And The Imperial Gaze In Bengal Presidency, 1849-1856, Richard William Bradley Gaspers Iii

UNLV Theses, Dissertations, Professional Papers, and Capstones

The construction of roads, canals, and supporting infrastructure in British India connected urban environs of power to interior peripheral spaces. The conclusion of the Second Anglo-Sikh War in 1849 saw the East India Company stand alone as the paramount power over the Indian subcontinent. A century of conquest gave way to a century of internal management. This shifted the state’s ‘gaze’ inward. Public infrastructure construction skyrocketed after 1849, transforming the role of the colonial state as it built roads, canals, bridges, courthouses, police stations, and jails on an unprecedented scale. This thesis will explore how these physical constructs bolstered connectivity, …

Goals, Properly Technical: Special Education Teachers Using Chatgpt To Develop Individualized Student Goals, Travis Hammond

UNLV Theses, Dissertations, Professional Papers, and Capstones

Educators’ responsibilities extend well beyond instruction to include administrative duties such as grading, maintaining records, and documenting student behavior, as well as ongoing meetings and professional development requirements (Billingsley et al., 2019; Darling-Hammond et al., 2017). These demands can create a disconnect between role expectations and daily realities (Brunsting et al., 2023). Special education teachers (SETs) face these same responsibilities alongside additional paperwork requirements, which may account for up to 20% of their workday (Carlson et al., 2002; Suter & Giangreco, 2009; Vannest et al., 2011). A central task is the development of Individualized Education Programs (IEPs), including measurable annual …

A Modified Maximum Likelihood Estimation Algorithm For Modeling Threshold Exceedances With The Generalized Pareto Distribution, Jeffrey Harkness

UNLV Theses, Dissertations, Professional Papers, and Capstones

A modified maximum likelihood estimation (MLE) algorithm is proposed for modeling threshold exceedances with the generalized Pareto distribution (GPD). The algorithm addresses multiple issues with an approach originally published in the Journal Computational Statistics and Data Analysis (Castillo and Serra, 2015). The modified algorithm is intended to be comparatively simple to understand and implement, accurate in the handling of boundary conditions, relatively fast and reliable for most data sets, and relatively easy to transfer between computer languages by leveraging existing optimization routines.

A reproducibility study of work in recent literature published in the journal Extremes (Belzile, et al., 2023) is …

Correlation Of Buccolingual Angulation Of Posterior Teeth And Transverse Skeletal Width In Adult Orthodontic Patients: A Retrospective Cbct Study, Anya T. Hatfield

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective:

Accurate evaluation of transverse skeletal relationships is essential for orthodontic diagnosis and treatment planning. Dentition may compensate for skeletal discrepancies through buccolingual tipping of posterior teeth, potentially masking underlying transverse imbalance. The purpose of this study was to investigate the relationship between transverse skeletal width and posterior tooth angulation using cone-beam computed tomography (CBCT).

Methods:

Sixty-six pre-orthodontic adult CBCT scans were analyzed. Maxillary and mandibular transverse skeletal widths were measured at the level of the first molar furcation using buccal cortical plate– to–buccal cortical plate landmarks. Buccolingual angulation of the first and second premolars and first and second molars …

Correlation Between Maxillary Transverse Width, Alveolar Housing Width And Palatal Bone Thickness: A Cbct Retrospective Study, Eric G. Hollensbe

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background:

Accurate assessment of transverse maxillary dimensions and surrounding bone morphology is critical for safe orthodontic treatment planning. Orthodontic expansion should remain within the biological limits of the alveolar housing and palatal bone to prevent adverse periodontal outcomes, including dehiscence, fenestration, and gingival recession. Standard diagnostic methods, such as dental casts and two-dimensional radiographs, offer limited information about the three-dimensional anatomy that restricts orthodontic tooth movement. Cone-beam computed tomography (CBCT) provides detailed evaluation of skeletal dimensions and cortical bone boundaries. This study aimed to examine the relationships among maxillary transverse width, alveolar housing thickness, and palatal thickness using CBCT imaging. …

Expressions Of Taiwanese Cultural Identity In Piano Music: A Study Of Hsiao Tyzen’S Memories Of Home And Ma Shui-Long’S A Sketch Of The Rainy Harbor, Fang-Yu Hsu

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study investigates how Taiwanese cultural identity is expressed in the piano works of composers Hsiao Tyzen and Ma Shui-Long, focusing on Hsiao’s Memories of Home and Ma’s A Sketch of the Rainy Harbor. While both composers are pivotal figures in Taiwan’s musical history, their approaches to integrating local heritage with Western compositional techniques differ significantly. This dissertation argues that they represent two distinct creative paths: Hsiao’s model of Romantic Nationalism and Ma’s model of Modernist Synthesis.

Through historical contextualization and detailed musical analysis, this research examines the specific methods each composer employed. The findings reveal that Hsiao directly quotes …

The Exploration Of Leisure Occupations For Older Adults, Chloe Jisoo Kang

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: This capstone project involved the development and implementation of a community-based program for the exploration of leisure occupations for older adults. The program aimed to increase the life satisfaction and occupational balance of participants. A manualized program was created for the capstone site for potential continuation of the program.

Methods: The program was developed with the support of evidence-based research and the Occupational Therapy Practice Framework (OTPF-4). Two-hour events were held once a week for four weeks in a community area of the senior living community. A modified version of the Occupational Balance Questionnaire (OBQ11) and the Satisfaction with …

Iterative Silver-Label Refinement For Temporal Information Extraction In Biomedical Literature, Chan Lee

UNLV Theses, Dissertations, Professional Papers, and Capstones

Temporal information extraction plays a critical role in the biomedical domain, where the ability to identify events and their temporal relationships is central to interpreting research findings. However, annotated corpora for this task remain scarce and costly to produce and the existing models developed for clinical text do not transfer well. This work bridges that gap through iterative silver-label refinement. A temporal model originally trained on news-domain data is adapted to biomedical text through cycles of automatic labeling, targeted correction, and retraining without the need for comprehensive manual annotation.

Key contributions include a practical iterative refinement methodology demonstrating that the …

The Collision Between Chinese Traditional Culture And Western Musical Styles In Zhang Zhao’S Piano Work Pi–Huang, Weijing Li

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study focuses on Zhang Zhao’s solo piano work Pi–Huang and explores how Chinese traditional operatic culture is expressed through the piano as a Western instrument. As a piano work with a strong Chinese cultural background, Pi–Huang connects directly to the pihuang vocal system of Beijing opera and shows important elements of Chinese traditional music in its melody, rhythm, timbre, texture, and structure. This dissertation examines the historical and cultural background of pihuang, analyzes the musical language of the work, and discusses its interpretation in performance practice. It focuses especially on pentatonic materials, operatic melodic lines, rhythmic features, timbral images …

Are The Dollars Equal? Investigating Racial And Geographic Disparities In New Market Tax Credit Allocations, Brian L. Maddox

UNLV Theses, Dissertations, Professional Papers, and Capstones

When Minority led CDEs are deprived an allocation of NMTCs and minority small businesses are deprived an investment, successes for minority communities are not as plentiful and economic gains are not shared in the community. Putnam (2000) believes economic empowerment of individuals in and from low-income communities can result in positive impacts to community dynamics, such as a reduction of disparities and enhance social cohesion. According to Putnam (2000) having examples of success breeds more success and often creates a community of individuals who form ties.

Portraits Of Resiliency And Possibility: Women Superintendents As Trailblazers For Future Leaders, Lisa Michelle Martin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Women remain underrepresented in the superintendency despite comprising the majority of the educational workforce. This qualitative study examined how women superintendents access and sustain the role. Grounded in Social Cognitive Career Theory (SCCT) and using portraiture, the study explored how self-efficacy and contextual conditions shape leadership trajectories. Data were collected through interviews and analyzed by adopting narrative coding and cross-case portraits. The cultivation of self-efficacy, the accessibility of opportunities through connections, and the management of systemic obstacles influence trajectories. Sustainable leadership was strengthened by adaptive capacity and extensive professional networks. This study promotes an asset-based perspective and emphasizes the necessity …

Addressing Sleep Health In The Fire Service: A Sleep Hygiene Education Program, Alyssa Elizabeth Neal

UNLV Theses, Dissertations, Professional Papers, and Capstones

This capstone project implemented an occupational therapy sleep hygiene program tailored to the unique occupational demands of Las Vegas Fire and Rescue (LVFR) firefighters. Guided by the Occupational Adaptation theory and the CALMS Framework, this project conceptualized sleep as a meaningful occupation essential to health, safety, and functional performance. The project’s aim was to assess the feasibility of a sleep hygiene program designed for the fire service using standardized measures, including the Sleep Hygiene Index. The methodology incorporated a structured educational session focused on educating firefighters on the importance of sleep, modifying routines and environments to support restorative sleep, implementing …

Sense Of Belonging And Professional Identity In Acute Care Occupational Therapists: A Phenomenological Study, Shania Marion D. Novilla

UNLV Theses, Dissertations, Professional Papers, and Capstones

Occupational therapy practitioners (OTPs) play a crucial and demanding role in acute care, addressing complex diagnoses and facilitating safe discharge; however, the fast-paced biomedical environment often pressures them to compromise their occupation-based philosophy, potentially leading to professional burnout and low retention rates. Although professional identity (the self-perception of one's role) and a sense of belonging (feeling valued and connected) are recognized as correlated concepts vital for professional resilience, this relationship remains critically underexplored within the acute care OT population. Guided by the Occupational Adaptation Model (Schkade & Schultz, 1992), this qualitative study explores how experienced occupational therapists working in an …

Thermal Physiological Ecology Of The Relict Leopard Frog At Hot And Cold Springs, Robert P. Pelletier Iii

UNLV Theses, Dissertations, Professional Papers, and Capstones

The relict leopard frog (Rana onca) once ranged across drainages in southern Nevada, northwestern Arizona, and southwestern Utah. Following a decline, the species only persisted in a few geothermally influenced hot springs, which led to the perspective that hot springs were high-quality habitat. Rana onca has been under intensive, multiagency management and the species has been translocated to establish additional populations, including at cold-water sites. Three research studies are presented into the thermal physiological ecology of R. onca with the aim of informing conservation strategy. The research was focused at a thermally influenced hot spring and a cold-water spring to …

Expanding Access To High-Quality Child Care For Infants And Toddlers With Disabilities And Their Families In Nevada, Turia M. Penkalski

UNLV Theses, Dissertations, Professional Papers, and Capstones

Access to high-quality child care significantly impacts outcomes for infants and toddlers with disabilities and their families, yet persistent inequities remain. This dissertation employed an instrumental case study design (Stake, 1995; Stake & Visse, 2023) to investigate Nevada's state-level policies and procedures that shape the accessibility and quality of child care for infants and toddlers with disabilities. Using a triangulated approach that integrates document analysis, family interviews, and a survey with state leaders, this study explored the perspectives and experiences of diverse key players. The research illuminates how policy intentions align with or diverge from system-level perceptions and the experiences …

Empowering Educators: Transforming Online Classrooms Through Interactive Training, Jodie Peterson

UNLV Theses, Dissertations, Professional Papers, and Capstones

Faculty teaching in online nursing programs must continually adapt to evolving educational technologies and pedagogical methods to ensure high-quality learning experiences. However, nursing faculty may lack the resources, knowledge, and skills needed to effectively implement technology-driven, learner-centered strategies that facilitate engagement in virtual classrooms. Supporting faculty development in available interactive technologies is essential to enhance instructional effectiveness and improve student engagement and learning outcomes. This Doctor of Nursing Practice project focuses on strengthening faculty knowledge and competence in using interactive, learner-centered strategies in online education. The project was implemented within a southern Nevada university’s school of nursing and provided an …

Effect Of The Sava Syndemic On Hiv Viral Suppression Among People Living With Hiv In The United States: A Scoping Review And Meta-Analysis, Jacquelyn Rodriguez

UNLV Theses, Dissertations, Professional Papers, and Capstones

The SAVA syndemic highlights the interconnected and mutually reinforcing nature of substance use, violence victimization, and HIV/AIDS. The synergistic interaction of these conditions creates structural and behavioral barriers that disrupt the HIV care continuum and contribute to significant health inequities. Achieving a suppressed viral load is a critical clinical outcome for people living with HIV, while viral non-suppression can be an indicator of poor health, elevated transmission risk, and disease progression. Still, the association between SAVA factors and viral suppression/non-suppression outcomes within U.S. populations remains inconsistently characterized due to heterogeneous methodologies and variable inclusion of high-risk groups. This mixed-methods study …

Expanding Neurological Interventions: An Aquatic-Based Occupational Therapy Toolkit For Inpatient Rehabilitation, Kate Jannelle Rye

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: The objective of this project was to develop an evidence-informed aquatic therapy toolkit aimed at improving occupational therapy practitioners’ self-efficacy in planning aquatic interventions for individuals with neurological injuries.

Methods: This project utilized a quality improvement approach, involving the development of a toolkit, an in-service educational training, and a hands-on skills session. Practitioner self-efficacy was measured using a modified General Self-Efficacy Scale, which was administered before and after the educational training and hands-on skills session. Guided reflections and feedback from occupational therapy practitioners were also utilized to evaluate self-efficacy and the applicability of the toolkit.

Outcomes: Participation in the …

Examining Demographic And Contextual Differences In Stress-Related Sport Interference Among U.S. Collegiate Sport Participants, Heather Tran

UNLV Theses, Dissertations, Professional Papers, and Capstones

Collegiate athletes experience a range of stressors that may interfere with sport performance; however less is known about how stress-related sport interference varies across demographic groups and contexts. Guided by the transactional model of stress and coping, this study examined differences in stress-related sport interference by gender, race/ethnicity, and year in school, as well as across situational contexts (training, competition, and life outside of sport). Data were drawn from a secondary dataset of 288 collegiate sport participants who completed the Sport Interference Checklist (SIC). Independent samples t-test and analyses of variance (ANOVA) were used to examined demographic differences, and a …

Treatment And Recovery Of Mucoceles In Brass Musicians: The Performance Trap And Its Consequences, David D. Torres

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation examines the treatment and recovery of oral mucoceles in professional brass musicians through a qualitative case study combining personal narrative, semi-structured interviews, and analysis of medical and pedagogical literature. I interviewed four professional trumpet players who experienced mucoceles and lip trauma, and three medical professionals with relevant expertise. My own case serves as the primary study, documenting 15 years of scar tissue management following surgical excision and an immediate return to demanding performance. Medical literature treats mucocele excision as a routine procedure with recovery measured in weeks. Brass pedagogy literature assumes healthy lips and offers no guidance for …

Examining The Effects Of Tailored Ergonomic Interventions On Reducing Musculoskeletal Disorders For Taxi Drivers, Amal Youssouf

UNLV Theses, Dissertations, Professional Papers, and Capstones

Taxi drivers are frequently exposed to prolonged sitting, whole-body vibration, limited rest opportunities, and psychosocial stressors, placing them at increased risk for musculoskeletal disorders (MSDs). This can be mitigated with the use of ergonomics, which changes one's environment to match an individual's needs within the context and demands of the job. Although ergonomics is a recognized area of occupational therapy (OT) practice, current research is limited to office-based or computer-related settings, leaving a gap in OT-led ergonomic interventions tailored for professional drivers. This capstone project aimed to determine whether OT-based ergonomic strategies, along with an ergonomic checklist as a guideline …

Read The Fine Print, Kayla Lockwood

UNLV Theses, Dissertations, Professional Papers, and Capstones

read the fine print is a two-floor art installation that investigates how midcentury domestic ideology structured bodies, behavior, and perception through visual, spatial, and material systems. Rather than recreating a home interior, it examines how domestic order was engineered across the United States through color coding, planning diagrams, model environments, controlled decoration, and institutional messaging. The two-floor arrangement mirrors the operation of these systems across registers, moving from overt structures of order to quieter, often obscured consequences. By rendering policy, hierarchy, and expectation materially, the installation invites viewers to consider domesticity as a designed system: a set of practices, forms, …