Digital Commons Network^™

Planting Seeds, Changing Minds: A Narrative Analysis Of Environmental Children’S Books, Julianna Jovillar

UNLV Theses, Dissertations, Professional Papers, and Capstones

Children’s books are some of the earliest forms of entertainment and education a person will interact with in their lifetime. Simultaneously weaving a tale and teaching a lesson, children’s books, therefore, have the great potential to communicate important lessons and mindsets at young ages. Utilizing narrative theory (Fisher, 1984) and ecocriticism (Glotfelty, 1996), while also considering environmental ideologies and narrative components (Bloomfield, 2024), this study explores the functions of environmental children’s books and how they might communicate environmental messaging and encourage ecological thinking. Following a narrative analysis of 46 environmental children’s books, the results of this study indicate that there …

The Effectiveness Of Occupational Therapy Objective Structured Clinical Exam & Student Self-Efficacy In Preparation For Fieldwork Rotation, Angela Kay

UNLV Theses, Dissertations, Professional Papers, and Capstones

This capstone project focuses on exploring the effectiveness of the University of Nevada, Las Vegas Department of Occupational Therapy’s Objective Structured Clinical Exam (OSCE) on students’ perceived self-efficacy in preparation for and throughout fieldwork rotation. This retrospective study analyzed repeated measures of the New General Self-Efficacy (NGSE) Likert Scale collected from a sample of 49 occupational therapy students across five time points. Findings indicated a statistically significant increase in self-efficacy over time (p< .001). These results suggest that the OSCE may play a meaningful role in enhancing students’ self-efficacy in their clinical hands-on skills, supporting its continued use in occupational therapy academics.

Undergraduate Student Experiences Of Flow In Culturally Relevant And Contextual Digital Math Games, Kaylie Kurland

UNLV Theses, Dissertations, Professional Papers, and Capstones

Students in co-requisite mathematics classes represent a diverse group of learners, with one thing in common: their previous math performance. This research investigates how playing culturally responsive educational games is associated with students' learning and experience of flow. Quantitative analyses revealed no significant differences in flow scores across demographic groups. However, students with stronger STEM identities reported experiencing higher levels of flow, on average. Math self-efficacy was not significantly associated with flow experiences. ANOVA results indicated that flow was not significantly related to final course grades (F = 0.465, p = 0.707, η² = 0.008), suggesting that students’ self-reported flow …

Cross-Correlation Studies Of The Cosmological 21 Cm Signal And High-Redshift Galaxy Distributions, Simon Matin

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Epoch of Reionization (EoR) marks a critical phase in cosmic history, during which time the first stars and galaxies ionized the surrounding neutral hydrogen gas. A powerful way to probe this period is by cross-correlating the 21 cm signal from neutral hydrogen with high-redshift galaxy distributions. In this study, we analyze the 21 cm-galaxy cross-power spectrum using simulated sky maps and explore its redshift evolution, revealing a transition from positive correlation at early times (high redshift) to anti-correlation at later stages of reionization (low redshift). Our results highlight the sensitivity of the cross-power spectrum to the evolving ionized structure …

Realizing And Practicing Teaching As A Calling: Narratives From Black Women Teachers In Urban K-12 Public Schools, De'ana Renee Mauldin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Research and scholarship frequently ignore and dismiss the unique experiences and perspectives of Black women teachers. They bring with them a unique angle of vision through various race, gender, cultural, and historical intersections that inform their spirituality-based pedagogy and outlook while providing instruction in urban public schools.The purpose of this qualitative dissertation study is to examine the narratives and amplify the voices of Black women K-12 teachers in urban public schools to address how they realized teaching as a calling. Teaching as a calling is more than simply a job and source of income for these teachers. Understanding of this …

El, A Navigational Assistant Based Upon Echolocation, Arthur Mazer

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis investigates the integration of a parametric speaker with a microphone array to enhance the echolocation of objects. A parametric speaker focuses ultrasonic and audible waves in a specified direction. This endows the parametric speaker with the capacity to focus waves across a wide frequency spectrum enabling adaptation of the frequency to environmental considerations.Beam forming allows one to focus a microphone array in a specified direction. The thesis investigates different microphone array configurations for the purpose of enhancing the echolocation ability of an echolocation device. The primary goal of the thesis is the construction and testing of an echolocation …

The Impact Of Psychosocial Factors On Occupational Therapy Doctoral Students’ Communication With Fieldwork Educators: A Retrospective Analysis, Melissa Montes

UNLV Theses, Dissertations, Professional Papers, and Capstones

This capstone project investigates the impact of adverse psychosocial factors, such as depression, anxiety, and stress, on effective communication of occupational therapy doctoral (OTD) students with their fieldwork educators (FWEds) during level II fieldwork experiences at the University of Nevada, Las Vegas (UNLV). Using a convergent parallel mixed methods design and retrospective analysis, the study integrates quantitative data from the Depression, Anxiety, and Stress Scale (DASS-21) and qualitative data from the Fieldwork Experience Assessment Tool (FEAT) to explore how these factors affect communication and the management of the adverse psychosocial factors OTD students experience. This study involved 36 OTD students …

Analysis Of Incident Duration And Real-Time Incident Delay Estimation Using Big Data Analytics And Machine Learning Techniques, Zhubin Najafi

UNLV Theses, Dissertations, Professional Papers, and Capstones

Traffic incidents have a significant impact on freeway operations, leading to severe delays, congestion, fuel wastage, and economic losses for commuters. Each year, billions of gallons of fuel are wasted, and drivers incur thousands of dollars in lost time due to incident-related delays. To mitigate these effects, Traffic Management Centers (TMCs) implement incident management strategies aimed at reducing both the frequency and severity of incidents while ensuring their prompt and safe clearance.

Dynamic Message Signs (DMSs) are key tools used by TMCs to communicate travel times and incident information to commuters. Under normal conditions, default travel times are displayed on …

Assessing The Effects Of Streptozotocin-Induced Hyperglycemia On Amyloid Beta Accumulation And Cognitive Behavior In A Mouse Model Of Alzheimer’S Disease-Related Pathology, Andrew Adonay Ortiz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Alzheimer’s disease (AD) is an irreversible and devastating neurodegenerative disease characterized by progressive synaptic, dendritic, glial, and neuronal loss, collectively leading to impairments in learning, memory, and deterioration of cognitive and behavioral functions. AD is the most common form of dementia accounting for 60-80% of all cases. AD affects approximately 7 million Americans and is the 6th leading cause of death in the US. Furthermore, by 2050, the US is projected to spend over $1.1 trillion on AD-related treatments. Pathological hallmarks of AD include beta-amyloid (Aβ) plaques, intracellular neurofibrillary tangles (NFTs), and chronic neuroinflammation, which can promote and exacerbate both …

Exploring The Occupation Of Parenting With A Cognitive Disability, Alysa Polley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: To investigate how parents with cognitive disabilities perform child-rearing tasks and barriers associated with their disability, to determine their needs and self-efficacy to improve the role of occupational therapy in supporting child-rearing for parents with cognitive disability.Design: Qualitative Case-study, Phenomenology Setting: Gigi's Playhouse Participant(s): Inclusion criteria: parents or expecting parents, individuals with a cognitive disability resulting from an autism spectrum disorder diagnosis, English speaking, 18+, and autonomy to consent participation. Exclusion criteria: non-English speaking, individuals without a cognitive disability resulting from an autism spectrum disorder diagnosis, and under 18. Measure(s): Semi-Structured Interview and Tool for Measuring Parental Self-efficacy. Results: …

Detection And Quantification Of Total Airborne Fungi And Coccidioides Species In Environmental Samples, Theresa T. Roehr

UNLV Theses, Dissertations, Professional Papers, and Capstones

Fungal exposure can cause acute and chronic illnesses or exacerbate existing illnesses. Some fungi are opportunistic pathogens and can lead to serious systemic fungal infections. In 2020, more than 150 million cases of severe fungal infections were reported globally resulting in an estimated 1.7 million deaths. Coccidioidomycosis, or Valley fever, is classified as a serious fungal infection caused by the fungi Coccidioides immitis and C. posadasii. These particular fungi are prevalent in the soil of the Southwestern United States, including Las Vegas, Nevada. In 2024, there were a total of 269 cases of Valley fever reported in Nevada, and …

Maximizing Functional Independence And Well-Being: The Impact Of Sensory Impairments On Iadls And Functional Mobility Skills, Jessica L. Ryan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: Sensory impairments involving vision and hearing among the adult population are predicted to double by 2030 (Gutherie et al., 2018). Individuals with experiences of sensory impairments like low vision are at risk of decreased functional participation in their homes and communities, which often leads to mental health concerns due to social withdrawal, experiences with environmental barriers, and limited occupational engagement (Bezyak et al., 2017; Gerami et al., 2015; Pfeiffer et al., 2020; Vreeken et al., 2020). This doctoral capstone focused on program evaluation to support adults with low vision and blindness in transferring learned skills from a simulated environment …

Gaming Participation: An Occupational Therapy Approach To Esports Ergonomics, Althea Rivera-Millare

UNLV Theses, Dissertations, Professional Papers, and Capstones

Competitive e-sport gamers are increasingly at risk for repetitive strain injuries (RSIs) due to the prolonged and repetitive nature of their gaming demands. Current healthcare protocols often overlook the unique ergonomic needs of this population, potentially leading to decreased occupational performance and dysfunction. This study aims to develop and evaluate an evidence-based ergonomic protocol tailored specifically to e-sport gamers who primarily use a mouse and keyboard, with the goal of reducing the risk of musculoskeletal injuries and enhancing gaming performance. Grounded in the principles of occupational therapy, the study emphasizes occupation-based interventions that address the specific occupational demands of e-sport …

Qualitative Analysis Of The Influence Of Military Culture On The Resocialization Of Combat Veterans, Kyle N. Rodgers

UNLV Theses, Dissertations, Professional Papers, and Capstones

The researcher conducted in-depth interviews with 25 combat-experienced Veterans of the Global War on Terror who fit an operational definition of successful resocialization. How do successfully resocialized combat Veterans compare with combat Veterans who became involved with the criminal justice system? Utilizing a snowball method to identify each participant, the most significant finding from these interviews was that two factors seem to differentiate the civilian and military group styles the most, which were the overwhelming importance of purpose and tribe in the lives of combat Veterans. This confirmed the hypothesis that the most significant difference between the civilian and military …

On The Special Cases Of Carmichael’S Totient Conjecture, Christopher Saito

UNLV Theses, Dissertations, Professional Papers, and Capstones

Euler’s totient function, φ(n), is the arithmetic function defined as the number of positive integers less than or equal to n that are relatively prime to n. In his 1922 paper [3], Professor R. D. Carmichael conjectured that for each positive integer n, there exists at least one positive integer m̸ = n such that φ(m) = φ(n).In this thesis, we consider some relevant literature and explore Carmichael’s totient conjecture for particular values of φ(n) = k. Our main consideration will be the set X_k = {n ∈ N : φ(n) = k}. In identifying X_k for k = 2^t, …

Qualitative Analysis Of Clinical And Community Perinatal Providers’ Perceived Barriers To Equitable Care For Food Insecurity In Underserved Communities In Southern Nevada, Kaelia Lynn KeapomekuʻUaloha Saniatan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Food insecurity is prevalent among underserved communities and contributes to increasing maternal-child health disparities. The perinatal period from pregnancy through one year postpartum provides a critical window of opportunity to identify and address food insecurity (FI). However, barriers such as inadequate staffing, lack of institutional and community resources have prevented perinatal providers from offering equitable care for FI, defined as providing screening, referrals, and follow-up services. The Social Ecological Model (SEM) is a framework that observes concepts at multiple levels, including (i) individual, (ii) interpersonal, (iii) institutional, (iv) community, and (v) policy. The objective of this study is to understand …

Investigating Decision Factors For Modularization And Standardization Decision On Early Project Phase: Qualitative Comparative Analysis, Amrit Shahi

UNLV Theses, Dissertations, Professional Papers, and Capstones

Modularization involves shifting site-based work to offsite locations to enhance overall productivity, reduce costs, shorten schedules, and improve project competitiveness. By developing and utilizing consistent designs, facility standardization further optimizes project schedules, costs, and value. When combined, they create a leveraging opportunity, as seen in the shipbuilding and manufacturing industries. While both strategies offer significant advantages, capital projects struggle to have a well-informed modularization and standardization decision during the early project phase (i.e., Opportunity Framing). This often results in improper implementation and lower modularization and standardization levels. The main cause for this is the industry’s limited understanding of early-phase high-level …

Teacher Perceptions Of Their Role In Aspiration Development With Diverse Students With Disabilities, Joseph Edward Simmons Jr.

UNLV Theses, Dissertations, Professional Papers, and Capstones

Aspirations stem from a humanistic perspective, emphasizing the person as a whole. They serve as a foundational and predictive component of an individual’s life. Teachers play a critical role in shaping the successes and challenges their students encounter (Zolkoski, 2019). Aspirations, as a cognitive process grounded in forward-thinking, are essential to personal development and evolve through experiences (Hart, 2016). However, students with disabilities often lack opportunities to explore their aspirations within schools. These students are frequently constrained by both teachers and systemic practices within the school environment (Gilmour et al., 2019). Aspiration exploration is crucial because children and youth need …

Elevating Education: Leveling Up Individual Learning Plans, Maximum Mgrdich-Ararat Sirabian

UNLV Theses, Dissertations, Professional Papers, and Capstones

This three-article dissertation investigated the effectiveness, implementation quality, and automation of Individual Learning Plans (ILPs) in promoting college and career readiness. Article 1 analyzed High School Longitudinal Study of 2009 data and found that ILPs did not significantly guide course alignment. Article 2 examined ILP implementation across Nevada high schools, revealing inconsistent quality, limited standardization, and few culturally responsive practices. These findings informed the creation of a new high-quality ILP framework. Article 3 employed a convergent parallel mixed methods design to assess an automated ILP prototype based on this framework. Participants in the automated group reported significantly higher scores in …

On Efficient Position Dependent Computation Of Radiation Near Accretion Disks, Kara Jeanette Smith

UNLV Theses, Dissertations, Professional Papers, and Capstones

Accretion onto super massive black holes (SMBH) plays a vital role in explaining our observations of active galactic nuclei (AGN). One key aspect of observations of AGN is the prevalence of massive outflows which transport matter and energy away from the galactic core. These outflows are characterized by highly blueshifted absorption lines as radiation from the accretion disk is absorbed by gas which is moving toward us. Radiation pressure on spectral lines is expected to play a vital role in launching and accelerating these winds. At the other end of the spectrum of black hole masses, accretion disks in X-ray …

Torque Efficacy Of Cadmus Bracket Design Using Clear Aligners, Joseph Soderberg

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: Clear aligner therapy (CAT) is an alternative option for clinicians to use for orthodontic treatment as opposed to fixed appliances. Many patients prefer clear aligner therapy due to its esthetic looks, removability, ease of oral hygiene, and comfort. Clear aligner companies boast to clinicians that it can be used more efficiently and effectively than fixed appliances in many orthodontic cases. Although these claims have been made, there is a lack of evidence to prove that clear aligner therapy is more efficient or effective. This research will focus on torque control. This project is designed around a new, pre-manufactured attachment …

There Is An Imposter Among Us: An Affective Constitutive Rhetorical Study On Rpgs, Erica Jane Sadorra

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study explores how players verbally and affectively connect the emotional impact of playing as crewmates or imposters to the game design of Among Us. Through video analysis of gameplay sessions and follow-up focus group interviews, the research highlights how crewmates exhibit heightened affective and gestural responses when making accusations or facing eliminations, while imposters adopt a more controlled, neutral demeanor to maintain deception. The study identifies moments where players' emotional and physical reactions peak, offering insights into how Among Us fosters complex emotional investments through its mechanics. These findings contribute to game studies by demonstrating how affect and role …

Routine Activity Theory And The Severity Of Terrorist Act, Yiwei Song

UNLV Theses, Dissertations, Professional Papers, and Capstones

Terrorist incidents have increased dramatically in the past several decades, leading to significant casualties and property damage worldwide. While prior studies grounded in lifestyle exposure theory have explored how victim demographics, lifestyle, and routine activities influence the likelihood of victimization, this study applies Routine Activity Theory to examine whether increased guardianship in the form of target security reduces the severity of terrorist incidents. Using data from 15,138 terrorist incidents in 2015 from the Global Terrorism Database (GTD), this study investigates the relationship between offender motives, target security, and the severity of attacks, measured by fatalities, injuries, and property damage. Furthermore, …

The Relationship Between Positive And Negative Experiences With Sport Culture And Psychiatric Symptoms In Collegiate Athletes, Angelos Tsalafos

UNLV Theses, Dissertations, Professional Papers, and Capstones

Although mental health professionals have indicated their interest in understanding the relationship between sport culture and mental health, this relationship has yet to be examined using psychometrically validated scales. In this study, the Semi-Structured Interview for Consideration of Sport Culture in Therapy Scale (SSICSCTS; see Donohue et al., 2006) was administered to 59 Club and National Collegiate Athletics Association (NCAA) athletes. This scale assesses how athletes experience importance (Sport Culture Importance Scale; SCIS) and negative experiences (Sport Cultural Problems Scale; SCPS) in sport culture. Participants were also assessed for psychiatric symptomology using a well-established scale, i.e., the Symptom Checklist 90-Revised …

The Cultural Politics Of Women's Equality In Victorian England: The Cases Of Caroline Norton, Annie Besant, And Clementina Black, Jaycie Weeks

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis explores the lives of three Victorian women – Caroline Norton, Annie Besant, and Clementina Black – and their campaigns to improve the status of women in the Victorian Era. Each engaged in the condition of women debate writing in distinctive genres- letter writing, social and political commentary and fiction, respectively. In an era of rising literacy, these middle and upper-class women used the power of the pen to shape how Victorians understood the Woman Question. The first chapter shares Norton’s fight to challenge principles of coverture. Using her writing to reach her high connections, she set the stage …

East Meets West In Chinese Orchestral Repertoire: The Fusion Of Chinese Nationalism And Western Musical Influence, Tianxi Wen

UNLV Theses, Dissertations, Professional Papers, and Capstones

This doctoral document explores the intersection of Chinese musical traditions and Western orchestral influences, focusing specifically on how Chinese composers have navigated this blend to create distinctive orchestral works. Grounded in my background as a doctoral student in orchestral conducting and enriched by my ethnomusicological expertise, this document examines how these composers have integrated both traditions into their music.CHAPTER 1, “Introduction”, introduces the document’s structure, central argument, and the selection of orchestral works for analysis. It also defines the document's purpose and scope. CHAPTER 2, “A Brief History of the Orchestra in China”, examines the origins, evolution, and development of …

School Leadership’S Impact On Teacher Turnover Post Covid-19, Andrea C. Womack

UNLV Theses, Dissertations, Professional Papers, and Capstones

This qualitative dissertation involved investigating the pivotal role of school leadership in shaping teacher turnover and support in the aftermath of the COVID-19 pandemic. The study was situated within the broader context of educational challenges, where teacher retention remains a critical concern. The pandemic introduced unprecedented disruptions to the education system, underscoring the need to understand how school leadership practices influence teacher retention and support in this new landscape. The COVID-19 pandemic fundamentally transformed the teaching profession, impacting every aspect of educators’ careers as evidenced by responses across the structural, human resource, political, and symbolic frames. Structurally, educators had to …

The Development Of Violin Art In China And The Exchange Of Eastern And Western Elements: A Case Study Of Fritz Kreisler's Tambourin Chinois, Chengyu Ren

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Violin, often regarded as one of the most expressive and versatile instruments in the world, holds a central place in both Western and non-Western musical traditions. Its wide dynamic range, tonal flexibility, and unmatched capacity for nuanced expression have allowed it to transcend cultural boundaries and play a key role in the development of diverse musical genres. From classical symphonies and chamber music to folk, jazz, and even popular music, the violin's distinctive voice can be heard shaping the sonic identity of cultures across the globe. In the context of Chinese music, the violin's influence has grown significantly since …

Investigating The Influence Of Environmental Stressors To Exopolysaccharide Production In Soil Cyanobacteria: Genomic And Physiological Perspectives, Benjy Sedano-Herrera

UNLV Theses, Dissertations, Professional Papers, and Capstones

Cyanobacteria are photosynthetic microbes with essential roles in Earth’s ecosystems. The secretion of long–chain polysaccharides, known as exopolysaccharides (EPS), is a key trait facilitating cyanobacterial adaptation to diverse ecosystems. Genomics studies have shown that aquatic cyanobacteria harbor multiple gene copies encoding EPS export proteins, likely conferring a selective advantage in lakes or oceans. In addition, physiological experiments showed that nutrient limitation in aquatic habitats influences EPS production, affecting cyanobacterial fitness. However, whether terrestrial cyanobacteria also harbor multiple EPS-related genes and how nutrient limitation impacts their EPS production is not well understood.In the first chapter of my thesis, we investigated the …

Balanced Artistry: Integrating The Methods Of Michael Chekhov And Body Mapping For The Versatile Singing Actor, Olivia Yokers

UNLV Theses, Dissertations, Professional Papers, and Capstones

This document explores the integration of movement-based techniques in vocal performance training by focusing on integrating Michael Chekhov’s acting method and Body Mapping. It examines how these methodologies enhance expressive freedom, technical efficiency, and injury prevention in singers. By providing a framework for performers to embody characters with greater authenticity, this document contextualizes exercises from both Body Mapping and Chekhov’s technique through an interdisciplinary approach that enhances student achievement of technical vocal and acting proficiency. Synthesizing principles from Body Mapping, such as inclusive awareness and the dynamic points of balance, with key elements of Michael Chekhov’s acting technique, including crossing …