Digital Commons Network^™

Full Posterior Uncertainty Propagation In The Bg/Nbd Framework A Bayesian Foundation For Individual-Level Customer Behavior Modeling, Stuart V. Kerr

UNLV Gaming Research & Review Journal

The Beta-Geometric/Negative Binomial Distribution (BG/NBD) model of Fader et al. (2005) is used to describe repeat-transaction behavior in non-contractual settings: a latent visitation rate, heterogeneous across customers, governs how of- ten a customer transacts while active, and a latent dropout probability, also het- erogeneous, governs when a customer permanently churns. In its classical form, BG/NBD is estimated using maximum likelihood, producing single point estimates of the underlying population parameters and, from these, point estimates of each customer’s individual behavior. This paper develops the model from first princi- ples as a fully Bayesian framework, estimated using Markov Chain Monte Carlo (MCMC), …

Fastest-Warming States And Cities In The Mountain West, 2025, Maisoon Faris, Kahlen Coss, Kevin Yang, Caitlin J. Saladino, William E. Brown Jr.

Environment

This fact sheet presents data published by Climate Central on the change in average annual temperatures for the five Mountain West states of Arizona, Colorado, Nevada, New Mexico, and Utah and 15 Mountain West cities from 1970 to 2025. City-level data are derived from Applied Climate Information System (ACIS) operated by National Oceanic and Atmospheric Administration (NOAA), state-level data are derived from NOAA’s National Centers for Environmental Information (NCEI).

Readme Template For Geospatial Data, Alyssa Renteria

Library Faculty Research

A readme file provides descriptive information about a dataset, file(s), or software. The goal is to ensure that the files and data can be correctly interpreted by your future self or others when sharing or publishing data, code, or software.

Synthesis, Thermal Stability, And Ionic Conductivity Of Phenyl-Extended Viologen Ditriflate Salts: Tailoring Properties Via Oxyethylene Chain Length, Seonghyeok L. Cox, Emily Moon, Si L. Chen, David King, Haesook Han, Pradip K. Bhowmik, Calvin Ng Yi Bin, Thamil Selvi Velayutham, Alfonso Martinez-Felipe

Chemistry and Biochemistry Faculty Research

Six new phenyl-extended viologen salts with oxyethylene groups paired with triflate anions (OTF) have been synthesized using anionic ring-opening and ring-closing reactions (ANRORC) and metathesis reactions with LiOTf salts. The salts, which contain terminal oxyethylene chains of varying lengths ((CH₂CH₂O)_n, n = 1, 2, 3, 4, 5, and 7), are named PEOn-OTF. These materials exhibit a fluorescence response and possess high thermal stability, with processing windows up to approximately 300 °C, as confirmed by thermogravimetric analysis. While samples with short chain lengths (n = 1, 2, and 3) undergo crystallization observed …

Sources Of Energy Production In Mountain West States, 2026, Kahlen Coss, Yash Kalla, Kian Parikh, Caitlin J. Saladino, William E. Brown Jr.

Environment

This fact sheet presents data on electricity generation and energy sources in March 2026 for five Mountain West states: Arizona, Colorado, Nevada, New Mexico, and Utah. Each state's share of total U.S. electricity production and its generation by source (coal, hydroelectricity, natural gas, nuclear, solar, and wind) are included. The Choose Energy report, "Electricity Generation by State," includes data on all 50 states and the District of Columbia.

Innovation Hubs In Mountain West Cities, 2025, Cason Noll, Sean Curry, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr.

Economic Development & Workforce

This fact sheet presents data on 20 innovation-dense Mountain West cities across Arizona, Colorado, Nevada, New Mexico, and Utah. The CommercialCafe report, “Santa Clara, Berkeley & Tempe Lead Among Western Innovation Hubs,”  uses 15 indicators to rank 63 western cities for innovation hub activity across three categories: employment and talent, education, and business activity.

Labor Market Responses To Ai: Measuring Wage Effects Across U.S. Occupations, Kaitlin Pham, Karla Rodriguez

Undergraduate Economics Working Paper Series

Artificial intelligence (AI) is rapidly changing economies around the world, with some experts predicting an impact greater than the Industrial Revolution. As AI becomes more common in daily life and business, questions have grown about how it might affect jobs, wages, and inequality. The rise of automation and highly capable AI models has made people wonder which occupations will benefit and which might be at risk. This study looks at how exposure to AI technologies affects wage trajectories in the United States. Using occupational-level data from O*NET and the U.S. Bureau of Labor Statistics, we build an AI exposure index …

Making The Case For Career Academies In Shaping Pre-Collegiate Students For Stem Career Pathways, Felix Quayson

Journal of Research in Technical Careers

Career academies are increasingly important in preparing pre-collegiate high school students for STEM pathways by connecting academic learning, technical skill development, career identity, and postsecondary readiness. STEM-focused career academies function as structured bridges between secondary education, higher education, and the labor market. Through small learning communities, interdisciplinary curricula, employer partnerships, work-based learning, and early exposure to college and career expectations, career academies help students understand STEM not only as school subjects but as possible futures. Research suggests that career academies can improve student engagement, support school persistence, and strengthen labor market outcomes when implemented with fidelity. The article concludes that …

Employability Skills Development In Career And Technical Education: Administrators’ Perspectives, Emily Manuel, Bradley M. Coleman, Jon W. Ramsey, J. Shane Robinson, Mary Jo Self

Journal of Research in Technical Careers

Career and Technical Education (CTE) programs in the United States have provided a combination of academic, technical, and employability skills to prepare students for college and careers. Employability skills, also known as soft skills, life skills, or behavioral skills, are developed through multiple CTE program components. This mixed-methods study explored administrators’ perceptions of Oklahoma CTE’s capacity to develop employability skills in students to meet the needs of the local community. A convergent parallel mixed methods design was used to collect and analyze quantitative and qualitative data. Quantitative findings suggest problem-solving, logical reasoning, and critical thinking were the highest-rated skills developed. …

Interest Requires Knowledge: Initial Development Of A Measure Of Career Knowledge, Sarah Ferguson, Marjorie Blicharz, Kara Ieva, Christopher J. Winkler, Theresa Cann

Journal of Research in Technical Careers

This paper details a measurement development study conducted in multiple phases to establish the reliability and validity of scores from a measure of career knowledge that can be specified to career fields. The initial development study focused on surveying and mapping careers in the engineering technician cluster, in alignment with a larger intervention study on career exploration of STEM technician and technologist careers. A short seven-item measure of perceived career knowledge was developed and piloted to address the need for empirical data on students' career knowledge, an outcome of interest to practitioners and researchers in career development. Exploratory and confirmatory …

Saving The Great Basin: Creating Places For The Birds, Bees And Beyond, Carlos Gomez

Hospitality Design Graduate Student Capstones

This project looks at how vacant and underused parcels along the Truckee River in Reno, Nevada, can be rethought as part of a larger ecological system. Rather than treating these parcels as empty leftover spaces, the project sees them as opportunities to create small habitat patches that can support native species, improve stormwater function, and strengthen the river corridor over time. The work focuses on three sites along the Truckee River: California Avenue, Island Avenue, and Commercial Row. Each site responds to a different condition along the urban transect, from a sloped residential river edge to a tighter urban parcel …

Schools Of The Desert: An Integrated Approach To Learning Through Biophilic & Contextual Design, Rejndi Hylviu

Hospitality Design Graduate Student Capstones

This capstone investigates how high school environments in arid regions can be reimagined through the integration of biophilic design, climate-responsive strategies, and place-based learning. Grounded in personal experience growing up in the Southwest, the project begins by identifying a widespread condition of disconnection, where students are educated in environments that are sealed off from the very landscapes they inhabit. Through a synthesis of literature, case studies, and interviews, the research establishes that exposure to natural systems can measurably improve cognitive performance, emotional well-being, physical health, and social behavior. Biophilic principles such as dynamic light, material connection, prospect and refuge, and …

The Biowell System: An Integrative Framework That Connects Ecological Sustainability And Mental Wellbeing Through The Regenerative Processes Of Bioswales, Nathan A. Bussa

Hospitality Design Graduate Student Capstones

The Biowell System is an evaluative framework that connects ecological sustainability and mental well-being through the regenerative processes of bioswales.

An Authentic Key To Universality: The National Sound Of Tajčević And The International Sound Of Milojević In Serbian Piano Music, Nikola Šćepović

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis argues that the authenticity of the works of Marko Tajčević and Miloje Milojević arises from their deep artistic response to the cultural and historical environment in which they lived and created, while their universality lies in their ability to articulate this authentic language within established artistic forms that resonate with a broader international musical community. It situates these works within the broader cultural context of Serbian music between the two World Wars, a period marked by the negotiation between national identity and European artistic integration.

It also explores the two formative directions of Serbian piano music, the music …

Performatic Learning In Informal Education: A Mixed Methods Study Of Zine-Making As A Catalyst For Intentional Epistemic Claiming, Experiential Knowing, And Cultural Mediation In A Museum-Based Learning Environment, April Ursula Fox

UNLV Theses, Dissertations, Professional Papers, and Capstones

Informal learning environments are powerful sites of meaning-making when learners are invited to move from observer to author. This study positions zine-making as an effective educational tool capable of promoting that transformation. The study advances a new framework—Performatic Learning—to articulate how creative, multimodal practices can support learning as becoming. Developed through foundational pilot studies and an in-depth mixed-methods investigation in a natural history museum, the framework integrates five constructs: Intentional Epistemic Claiming, Experiential Knowing, Cultural Mediation, Performatic Space, and Learning as Becoming. Across cases, zine-making emerged as a generative learning space in which participants authored knowledge, navigated uncertainty, drew on …

Validation And Implementation Of Automated Planning Optimization In Utah Valley Hospital, Oluwatobi Adeniji

UNLV Theses, Dissertations, Professional Papers, and Capstones

The increasing complexity of modern radiotherapy demands planning workflows that are efficient, standardized, and dosimetrically robust across diverse disease sites. Knowledge-based planning (KBP) systems such as RapidPlan offer a data-driven approach to automate and improve treatment planning by learning geometric–dosimetric relationships from high-quality clinical plans. In this work, I am evaluating the performance, generalizability, and clinical applicability of vendor-provided RapidPlan models across seven anatomical sites: intracranial SRS, prostate SBRT, right and left lung SBRT, liver SBRT, head and neck, and glioblastoma. Subsequently, a complementary institution-specific SRS model tailored to single-isocenter multitarget workflows was created. Seventy retrospectively selected patients were replanned …

Solving The 2-Sigma Problem With Chatgpt: A Case Study On The Double-Entry Accounting System, Dieudonne A. Affognon

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study examined whether structured ChatGPT tutoring could approximate the learning gains historically associated with one-on-one human tutoring. Grounded in cognitive load theory and informed by Bloom’s two-sigma benchmark, the investigation used double-entry accounting as a procedurally dense testbed requiring coordinated schema construction and rule-based reasoning. A randomized proof-of-concept design assigned thirty first-year accounting students to either human tutoring or ChatGPT tutoring across an eight-week instructional interval. Learning outcomes were assessed at pretest, posttest, and delayed retention. Repeated-measures analyses revealed substantial within-subject learning gains across both instructional modalities. Performance improved significantly from baseline to post-instruction assessment, indicating acquisition of procedural …

Transboundary Groundwater Flow Between Niger And Nigeria In The Iullemeden Aquifer System, Gare Ambrose-Igho

UNLV Theses, Dissertations, Professional Papers, and Capstones

Groundwater is important in regions where water resources are not abundantly distributed such as arid and semi-arid regions. In many countries in Africa, groundwater serves as the most reliable source of water supply and supports over 50% of the African population. Groundwater is stored in underground water-bearing permeable rocks, rock fractures, or unconsolidated materials known as aquifers. Groundwater can be transboundary, meaning it crosses international political boundaries between two or more sovereign states. Transboundary aquifers are prone to overexploitation that depletes the groundwater resource and can cause a lowering of the water table and possible ground subsidence. Overexploitation in transboundary …

Unknowing Sacrifices: Public Health And Radiation Illness In New Mexico And Nevada, 1940s-1960s, Beatriz Avila-Marquez

UNLV Theses, Dissertations, Professional Papers, and Capstones

The detonation of the first atomic bomb in the early morning of July 16, 1945, in New Mexico welcomed the atomic age that forever changed the world. After that day, thousands of lives were lost due to nuclear weapons, and hundreds of thousands more continued to suffer from the effects of atomic testing. The Atomic Energy Commission, fueled by the arms race of the Cold War, chose Nevada to continue the United States’ nuclear weapons testing. Knowledge of the dangers of radiation exposure, the effects of radiation, and techniques to prevent exposure are now available in part due to the …

Exploring Ai-Driven Scaffolding For Critical Questioning In Argument Evaluation, Ebenezer A. Belete

UNLV Theses, Dissertations, Professional Papers, and Capstones

The fast-paced changes caused by generative AI (GenAI) innovations call for exploring the potential benefits of GenAI in empowering 21st-century pedagogical strategies. Previous studies in the field of argumentation have shown how students can benefit from using critical questions. However, scaffolding argument evaluation through custom GenAI using critical questions has not been systematically investigated. This study involved two components: (1) designing and determining the usability of a GPT-powered conversational assistant (CQMAA Conversational Assistant) and (2) testing its impact on participants' efficacy for argument evaluation and their acceptance of GenAI as a learning tool through a pretest–posttest experiment. A convergent mixed-methods …

“A Land No One Would Want”: Environmental Activism And The Rejection Of ‘Wasteland’ Narratives In Southern Nevada, Steven Butler

UNLV Theses, Dissertations, Professional Papers, and Capstones

This paper traces events within the history of environmental activism in Southern Nevada. The first chapter discusses the proposed high level nuclear waste repository at Yucca Mountain. The second chapter examines the closure of the Reid Gardner Generating Station in Moapa, Nevada. The third chapter details the Southern Nevada Water Authority’s Groundwater Development Project. Each of the three chapters is linked by common themes within the history of Southern Nevada environmental activism, including dedicated coalition-building and the refusal of “wastelanding” of the region.

Got Sleep?: The Introduction Of Sleep Hygiene To Justice Involved Individuals, Charisma Lynn Cato

UNLV Theses, Dissertations, Professional Papers, and Capstones

Individuals transitioning out of incarceration often experience challenges with sleep due to the residual effects of confinement. Although this is common among justice-involved individuals, there is limited research on how to address their sleep hygiene self-efficacy after release. Furthermore, despite the wide use of social-emotional learning (SEL) across multiple disciplines, little is known about its influence on sleep-related behavior change in re-entry populations. To address this, the Got Sleep program, designed and implemented at Hope for Prisoners (HOPE), a community site geared toward re-entry assistance, integrated occupational therapy (OT) principles and an SEL approach with practical sleep hygiene strategies to …

Understanding Chinese Students’ Intent To Study Abroad: Case Study Of A Collaborative Chinese & U.S. University Program, Jaekeun Cho

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study examined how Chinese undergraduate students enrolled in a Sino-Foreign Cooperative Program (SFCP) made decisions about studying abroad and selected a U.S. institution, with particular attention to institutions in less traditional destinations, such as Nevada. International student enrollment has become a critical strategy for U.S. higher education institutions facing declining state appropriations, demographic contraction in domestic enrollment, and increased global competition. Although China has remained the largest source of international students to the United States for decades, states such as Nevada enroll comparatively few international students and lack empirical research on recruitment pathways. This study addressed this gap by …

Relativistic Transients From Compact Objects: Radiation Processes And Geometric Effects, Connery Chen

UNLV Theses, Dissertations, Professional Papers, and Capstones

Relativistic transients from compact objects probe the most extreme regimes of physics, where strong gravity, ultra-relativistic outflows, and high-energy radiation operate simultaneously; understanding the underlying radiation mechanisms and extrinsic geometric and relativistic effects is essential for interpreting observations and constraining source properties. I develop theoretical and computational frameworks to quantify how geometry and relativistic motion shape observed emission from fast radio bursts, gamma-ray bursts, and neutron star mergers. I analyze fast radio bursts from the Galactic magnetar SGR J1935+2154 and show that emission geometry strongly governs burst energetics and detection probability, and influences the link between radio and X-ray emission. …

Enhancing Independence: A Home Environmental Safety Program For Stroke Survivors, Ka'iulani-Joy Genevieve Conlu

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Stroke is a common cause of physical limitations, leading to decreased independence and participation in daily activities. Individuals post-stroke transitioning from inpatient to outpatient care typically do not receive in-person home safety recommendations to decrease environmental challenges and improve overall well-being. Methods: Participants were recruited conveniently during the inpatient and outpatient care process at Post Acute Medical (PAM) Health Rehabilitation Hospital of Henderson. The Home Falls and Accidents Screening Tool (HOME FAST) was administered to identify environmental hazards and to guide individualized home safety recommendations. Participants will complete a questionnaire before and after the program within 14 weeks to …

The Yorp Effect In Reboundx, Kaelyn Clement

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Yarkovsky-O’Keefe-Radzievskii-Paddack (YORP) effect is a radiation-induced torque that can affect the spin and rotational obliquity of small bodies. It has been observed to alter the rotation rate of asteroids in the Solar System (Lowry et al. 2007; Taylor et al. 2007). Under extreme circumstances, YORP can cause a body to fragment, inducing a cascade of fissions. This effect may be important in driving the pollution of white dwarf atmospheres in conjunction with other radiative forces. I developed a YORP calculator for REBOUNDX (Tamayo et al. 2020), an extensional library to the N-body integrator REBOUND (Rein & Liu 2012). I …

Functional Domains’ Ability To Predict Outcomes In Comparison To Absenteeism In A National Sample Of School Age Children, Randolph Dupont

UNLV Theses, Dissertations, Professional Papers, and Capstones

School absenteeism poses a critical challenge for educators, clinicians, and policymakers due to its strong associations with impairments across academic, social, mental health, and family domains. Traditional models conceptualize absenteeism systemically, using dimensional definitions (e.g., chronic absenteeism defined by missed days), or analytically, using categorical definitions (e.g., truancy, school refusal). Both approaches are limited in capturing the functional consequences of school attendance problems (SAPs). This study evaluated whether a functional impairment model, which emphasizes how domains of functioning are disrupted by absenteeism, provides a more accurate framework for predicting outcomes than absenteeism frequency alone. Using longitudinal data from the Adolescent …

Interpretable Deep Learning Models For Trustworthy Prediction Of Enzyme Functions, Louis Dumontet

UNLV Theses, Dissertations, Professional Papers, and Capstones

Trustworthy prediction of enzyme function from protein sequences remains a central challenge in computational biology, particularly when annotated data are limited, imbalanced, or incomplete. This dissertation develops interpretable deep learning methods for enzyme discovery and enzyme function prediction from amino acid sequences. First, it introduces PEPIC, an interpretable convolutional neural network for substrate-level prediction of hydrolytic plastic-degrading enzymes. Using curated and expanded sequence datasets, PEPIC improved predictive performance over benchmark methods, identified sequence regions aligned with catalytic and substrate-binding residues, and supported the discovery and experimental validation of a previously uncharacterized PET-degrading enzyme. Second, this dissertation investigates the integration of …

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, …

Promoting Classroom Management Through Elementary Teacher Education On Movement-Based Social-Emotional Learning, Daija Renee Georgette

UNLV Theses, Dissertations, Professional Papers, and Capstones

This doctoral capstone project addressed a knowledge gap among K–5 th–grade teachers at Cornerstone Christian Academy (CCA) regarding the purpose, benefits, and educational value of movement-based brain breaks. Although CCA currently incorporates social–emotional learning (SEL) frameworks such as the Zones of Regulation, teachers have received limited training on how structured movement opportunities can enhance student engagement, attention, and regulation. This program aimed to strengthen teachers’ understanding and confidence by providing a series of evidence-informed workshops that explored the connections among movement, self-regulation, and classroom management.

The project consisted of orientation, teacher recruitment, needs assessment, workshop development, and program delivery over …