Digital Commons Network^™

Utilizing A Hybrid Apprach To Link Maternal And Neonatal Records, Vidhani S. Goel, Ana Reyes, Bertille Assoumou, Dodds P. Simangan, Farooq Abdulla, Megumi Akiyama, Deborah A. Kuhls, Kavita Batra

Undergraduate Research Symposium Posters

Linkage of independent datasets allows comprehensive and robust analysis. This study aims to utilize a hybrid strategy to link maternal records with neonatal data with an overarching goal of investigating correlates of adverse birth outcomes.

To link 126,757 records from Nevada Medicaid with 249,181 maternal records from Birth Registry, a hybrid linkage approach was utilized. Data normalization was first performed for the standardization of linkage keys. First, a deterministic approach was used to link these records using a unique identifier followed by a fuzzy or probabilistic algorithm using a set of block variables. These block variables included date of birth, …

Immigration: Ancient Counterparts And Processes, Monica Souza Sue

Undergraduate Research Symposium Posters

This project sought to inspect parallels between modern and ancient societies, and the commonality of certain events and political markers. This project makes mentions of power dynamics, the position of immigrants as a source of labor, and their commodification as a force. Research used a 'compilation of materials' method. In which, is performed the examination and studying of different materials in relation to the question, compiling findings, and crafting commentary based on the discoveries of the medias. The experiences of immigrants in the United States are strongly comparable to the experiences of metic (immigrant) women in ancient Athens. A small …

The Relationship Between Gender And Experienes Of Weight Stigma From Healthcare Providers, Isabella J. Aceituno, Shannon Sagert

Undergraduate Research Symposium Posters

Healthcare providers are a common source of weight stigma, which is associated with lower physician trust, poorer patient outcomes, and the avoidance of healthcare services. Currently, there is a lack of consensus in research on whether women and men are equally likely to experience weight stigma from healthcare providers. The present study examined whether gender differences exist in weight stigma received from healthcare providers in childhood or adulthood, comfort seeking medical care, and healthcare avoidance. Adult participants (N = 196) reported the frequency at which they experienced stigmatizing experiences in healthcare environments in the past 12 months and during childhood …

"Screen Time" And The Perception Of It Among Different Social Classes, Jasmine Ayon

Undergraduate Research Symposium Posters

“Screen Time” and the subsequent demonization of it is a phenomenon that is not as analyzed through a social and comparative lens as much as psychological and health ones. To address this gap in research, we performed a content analysis on articles concerning families and “screen time” use that were published on two well-known parenting websites SheKnows and Parents.com from 2019 - 2022 (n = 220). In this paper, we address how these articles talk about screen time use among different social classes. In our analysis, we found what appears to be a double standard in the way screen time …

Latina Maternal Anxiety And Early Child Development: A Scoping Review, Micaela Gigena

Undergraduate Research Symposium Posters

Latina mothers' mental health struggles, particularly anxiety, can significantly impact their children's development. In Latino culture, stigma and shame surrounding mental health discussions often prevent individuals from seeking help, which can exacerbate effects. This scoping review aims to examine currently available research on the impact of maternal anxiety on early child development in Latina populations across North America, South America, and the Caribbean. A literature search was performed to find relevant peer-reviewed and grey literature through five electronic databases. Out of 469 results, 33 relevant studies were identified for full-text screening. Data will be extracted to explore the association between …

Effects Of Fire Temperatures On Mojave Desert Native And Nonnative Seeds, Sophia Lorenzana, Lindsay Chiquoine

Undergraduate Research Symposium Posters

Large-scale wildfires have been historically rare in hot deserts like the Mojave, largely due to the scarcity or uneven distribution of native plant biomass as fuel. Thus, native plants in these regions are ill-adapted to withstand spreading wildfire, resulting in slow post-fire recovery. Here, I test the hypothesis that nonnative grasses respond better to heat cues than native plant species. Seeds from 3 invasive and 13 native plant species were collected from research sites located in the eastern Mojave Desert, near surrounding Clark County Flood Control District weather stations. Seeds were buried in an artificial substrate mimicking field soil conditions …

Characterizing The Mechanical And Visoelastic Properties Of Sodium Alginate, Vesper Evereux

Undergraduate Research Symposium Posters

A crucial part of tissue engineering lies in understanding and characterizing the mechanical and viscoelastic properties of various types of biomaterials. Understanding these properties allows better biomaterials to be produced with characteristics more similar to those of the human body and with better biocompatability. In this study, sodium alginate was chemically crosslinked with calcium chloride and subsequently tested for it's instantaneous Elastic Modulus, instantaneous Shear Modulus, and equivalent viscosity using indentation testing methods consisting of a stress-relaxation test and nonlinear curve-fitting analysis. Two and three millimeter indentation tests were performed using a low-cost and portable device built in-lab that resulted …

Repurposing Non-Toxic And Cost-Effective Organic Ligancds To Enhance The Removal Of Uranium And Thorium From Wastewater, Will Campbell

Undergraduate Research Symposium Posters

Cheap, effective and industrially practical remediation methods for uranium and thorium are of utmost importance. Electrocoagulation is a cheap but only mildly effective method for the remediation of these elements. It was recently shown that chelating ligands enhance this process. Unfortunately, few ligands have been tested for this enhancement. Of these, the most effective, Alizarin Red S, had a 99.2% uranium removal efficiency but was expensive ($3.6 / g), toxic to humans and environmentally harmful. Therefore, ligands that avoid these downsides are needed before any industrial application can occur. Potential ligands were found via exhaustive searches of MilliporeSigma’s database. Over …

Examining The Effects Of Food Insecurity And Socioeconomic Status On Breastfeeding Duration Among Latina Mothers In Las Vegas, Nika Jenabi

Undergraduate Research Symposium Posters

Background: This study aims to investigate breastfeeding duration among Latina mothers in Clark County. We hypothesize that Latina mothers who experience significant health disparities, including low food security and limited economic resources, are likely to have shorter breastfeeding durations.

Methods: This study employed a cross-sectional design. The preliminary sample included 54 mothers who met the following inclusion criteria: aged 18 or older, self-identifying as Latina, having at least one child under 5 years old, and residing within Clark County. The survey included questions related to experiencing food insecurity, socioeconomic factors, and breastfeeding duration. Data analysis was performed using STATA 17 …

Detection Of Methane Leaks By The Use Of Mid-Range Infrared Camera, Jared Rosario, Oscar Salcido

Undergraduate Research Symposium Posters

Timely detection of methane leaks from natural gas infrastructure, like pipelines and valves, is essential for mitigating environmental and safety risks. This research focuses on using mid-wave infrared (MwIR) cameras on unmanned aerial systems (UAS) to detect leaks. By leveraging machine learning, the study aims to develop an efficient, real-time methane inspection system that operates directly on embedded processors on UAS platforms.

This project employs the FLIR G300a OGI camera for remote gas inspection, utilizing video preprocessing and optical flow to mask gas plumes in footage. The YOLOv8 deep learning model is used to detect gas pixels and segment the …

Transferred-Learning Intrusion Detection System For Internet Of Vehicles, Tan Nguyen

Undergraduate Research Symposium Posters

The growing connectivity of modern vehicles, particularly within the Internet of Vehicles (IoV), has significantly increased the need for robust cybersecurity solutions. Building upon the work of Yang and Shami (2022), who proposed a transfer learning and optimized convolutional neural network (CNN)-based Intrusion Detection System (IDS) for IoV, this research seeks to validate their results and explore potential enhancements. The original IDS demonstrated exceptional performance, with detection rates surpassing 99.25% on benchmark datasets. In this study, we first replicate their experiments using the Car-Hacking dataset to confirm the effectiveness of the proposed model and then evaluate its ability to detect …

Effects Of Low Dose Exposure To Radiation And Sleep Fragmentation On Discrimination In String-Pulling Behavior With Female Rats, Jonathan F. Cortez, Diana Lloyd, T. L. Garcia, A. Adhikari, N. M. Attallah, N. Moges, D. H. Rodgers, K. S. Dhede, K. D. Omengan, A. A. Blackwell

Undergraduate Research Symposium Posters

Astronauts will face harmful stressors, such as galactic cosmic radiation (GCR) and sleep fragmentation (SF), on a three-year space flight mission to Mars and back. Astronauts perform skilled reach-to-grasp behaviors on these missions, including interacting with controls to navigate the spacecraft. Recent work has shown that GCR and SF disrupt skilled reach-to-grasp behavior in rodent models; however, the underlying nature of these deficits is unknown. To determine if tactile sensation and proprioceptive feedback contribute to these impairments, this study evaluated the effects of radiation and SF exposure on memory and sensorimotor discrimination in a rodent model. Twenty-one outbred Wistar, retired …

Development And Migration: A Case Study Of Agricultural Households In Northern Ghana, Otoniel Ramos

Undergraduate Research Symposium Posters

This study explores the intricate relationship between economic development and migration patterns in Northern Ghana's agricultural communities. Utilizing data from the EGC-ISSER Ghana Socioeconomic Panel Survey, the analysis focuses on the economic motivations driving migration, considering factors such as urbanization and economic growth. The findings reveal that while urbanization and economic prosperity individually decrease migration, in line with the assumptions of the human capital models of migration, their interaction significantly increases it, suggesting that growing wealthy urban centers; the emergence of new; or the growth of smaller urban centers (made possible due to economic growth) offer enhanced opportunities that attract …

Pathway-Based Polygenic Risk Score Analysis Of Brain Glial Indicates Cell-Type-Specific Roles In Alzheimer's Disease, Tyrell Pratt, Alice Lee, Jennifer Zheng, Faria Tavacoli, Hayley Ho, Tingwei Liu, Jingchun Chen

Undergraduate Research Symposium Posters

Background: Alzheimer's disease (AD) is a complex neurodegenerative disorder characterized by progressive cognitive decline and extensive brain pathology, including amyloid plaques, neurofibrillary tangles, and neuroinflammation. This study aims to identify any glial cell type-specific pathways associated with AD.

Methods: We first investigated the correlation between AD and the genetic risk of glia-specific pathways using pathway-based polygenic risk score (PRS) with PRSet software in the discovery data (ADc1234ADA) adjusted by the top two principal components (PC1, PC2) (Model 1), followed by additional adjustment with sex, age, and APOE ε4 count in Model 2. Further PRSet analyses were replicated in independent data …

Biochar/Hydrochar Applications In Disinfection Byproduct Removal For Drinking Water, Ashleu Mussio Marquez, Donna Rouhani, Ismail Abdulraheem, Kers Ung-Watson, Ahmadreza Khatamgooya, Scarlet Nelson, Dr. Jaeyun Moon, Dr. Erica Marti

Undergraduate Research Symposium Posters

This project aims to investigate the process of disinfection byproduct (DBP) removal in drinking water, looking into the applications of biochar and hydrochar, which are low cost and environmentally sustainable adsorbents. These carbon-based adsorbents are derived from agricultural waste biomass, such as walnut shells. These adsorbents will be used to capture and remove contaminants in water, such as DBPs. DBPs are formed when chemical disinfectants react with organic and inorganic substances naturally present in water. The targeted DBPs for adsorption include trihalomethanes, haloacetic acids, haloacetonitriles, and nitrosamines. An example of high concentration DBP formation is during emergency chlorination, where excess …

Inter-Rater Reliablility Of Sharp Wave Ripple Detection In Recently Trained Experts, Orlando Montiel, Gage Pompa, Yader Gomez, Talha Soluoko

Undergraduate Research Symposium Posters

Sharp wave ripples (SWR) are a brain phenomenon that originate in the hippocampus, a region crucial for memory and learning. These events occur during periods of rest or slow-wave sleep and are characterized by fast oscillatory bursts (150-250Hz) and are thought to be important for the brain to consolidate memory. SWR are believed to facilitate the transfer of information from the hippocampus to the cortex, strengthening synaptic connections & enabling long-term memory storage. Accurate detection & assessment of SWRs is essential for advancing how the brain processes and stores information.

This study examines the accuracy/consistency of SWR image selection and …

Association Between Polygenic Scores For Brain Structure And Alzheimer's Disease, Eunjae Lee, Faria Tavacoli, Tingwei Liu, Brittany Diaz Ruiz, Hayley Ho, Alice Lee, Jingchun Chen

Undergraduate Research Symposium Posters

Alzheimer’s disease (AD) is a progressive neurodegenerative condition and the most common type of dementia. Research has shown that volumetric changes in subcortical brain structures, which make up roughly 25% of the brain's total volume and affect many physiological functions. This research project aims to investigate the genetic association between brain structures and AD. GWAS data of eight different brain structures (ICV, accumbens, amygdala, caudate, hippocampus, pallidum, putamen, and thalamus) were used to create polygenic scores (PGSs) in a discovery (cases/controls = 2,651/2,768) and replication dataset (cases/controls = 553/644). We utilized PRSice-2 software to generate PGSs and assess genetic correlations …

The Southern Nevada Care Economy: Addressing Child Care And Elder Care Challenges, The Lincy Institute

Lincy Institute Events

This community forum examines the economic and societal impact of the “care economy” in Southern Nevada in collaboration with Tripp Umbach, a nationally recognized consulting firm that provides comprehensive services including research and strategic plans to further the operations and activities of healthcare services.

Central to the care economy is elder care and child care. Having access to elder care and child care services is essential to working age adults, many of whom need one or both types of services to continue participating in the workforce. The delivery of child care and elder care services have far-reaching implications for our …

Nevada’S Care Workforce: Obstacles And Opportunities For Policymakers, David Damore, Caitlin J. Saladino, William E. Brown Jr., Fatma Nasoz

Policy Briefs and Reports

The care economy includes “the paid and unpaid labor and services that support caregiving in all its forms.” This work includes caring for children, the elderly, and those who are ill or have disabilities. Care work is often undervalued, underpaid, and without a fair system of work benefits in place (e.g. contracts, paid leave, workers’ rights) that in many cases falls disproportionately on women and communities of color. In this policy brief, we examine the care economy in Nevada by focusing on three areas of care: (1) child care; (2) elder care; and (3) mental and behavioral health care. In …

Disruption Of The Oswrky71 Transcription Factor Gene Results In Early Rice Seed Germination Under Normal And Cold Stress Conditions, Santiago Bataller, James A. Davis, Lingkun Gu, Sophia Baca, Gaelan Chen, Azeem Majid, Anne J. Villacastin, Dylan Barth, Mira V. Han, Paul J. Rushton, Qingxi J. Shen

Life Sciences Faculty Research

Background

Early seed germination in crops can confer a competitive advantage against weeds and reduce the time to maturation and harvest. WRKY transcription factors regulate many aspects of plant development including seed dormancy and germination. Both positive and negative regulators of seed germination have been reported in many plants such as rice and Arabidopsis. Using a transient expression system, we previously demonstrated that OsWRKY71 is a negative regulator of gibberellin (GA) signaling in aleurone cells and likely forms a “repressosome” complex with other transcriptional repressors. Hence, it has the potential to impact seed germination properties.

Results

In this study, we …

The Southern Nevada Care Economy: Challenges And Opportunities, Tripp Umbach

Policy Briefs and Reports

National policymakers increasingly recognize the care economy as an essential economic driver, contributing $648 billion annually to the U.S. economy and supporting 3.6 million jobs. The care economy is also critical in driving economic development and prosperity in Southern Nevada. Yet, as this Tripp Umbach analysis finds, Southern Nevada’s care economy dramatically underperforms compared to national benchmarks and peer regions. High caregiving costs and limited access to care for children, seniors, and individuals with disabilities in Southern Nevada strain families, businesses, and public resources. This burden reduces workforce participation, productivity, and economic growth. Low pay and high turnover among care …

Shifting Employment And Perceptions Of Household Responsibilities During Early Stages Of The Covid-19 Pandemic In Nevada, Usa, Courtney Coughenour, Lung-Chang Chien, Brian Labus, Maxim Gakh, Pashtana Usufzy

School of Public Health Faculty Research

Background: Employment and household responsibility are critical health determinants. The COVID-19 pandemic altered the work and social landscapes in Nevada, USA through closures of workplaces and schools/childcare centers, changing patterns of employment, and household responsibilities. This study aimed to measure changes in employment status and perceived housework responsibilities among Nevada adults in December 2020, before widespread availability of COVID-19 vaccines in a pandemic-affected economy.

Methods: Using a cross-sectional telephone survey of 1,000 Nevada adults, this study compared respondent experiences and perceptions of employment and time spent on housework in December 2020 to pre-pandemic using multinominal logistic, proportional odds, and logistic …

Power, Labor, And Hierarchies: Deconstructing Work In Speculative Fiction, Joseph Kevin Sebastian

Library Faculty Research

In discussions of literary and speculative fiction, a persistent divide emerges regarding the modes and aims of each genre. Literary fiction generally aims to reflect the human condition in familiar, “realistic” terms, exploring characters, relationships, and narratives within existing social structures. In contrast, speculative fiction is characterized by what Darko Suvin identifies as the “the strange newness” of the novum: a radically new element or phenomenon that reshapes the fictional world. This paper argues that the novum in science fiction provides a unique framework for interrogating the relationships between labor, knowledge, and power, revealing how these constructs are contingent upon …

Top Tier 2.0: Research, Scholarship, And Creative Activity, University Of Nevada, Las Vegas

Focus on Top Tier 2.0

Research, scholarship, and creative activity are all integral to the university. Our efforts focus on increasing innovation and excellence in research, with multiple interdisciplinary opportunities, especially those opportunities that capitalize on specific aspects that make us unique and further support scholarly and creative activity.

Genome-Guided Isolation Of The Hyperthermophilic Aerobe Fervidibacter Sacchari Reveals Conserved Polysaccharide Metabolism In The Armatimonadota, Nancy O. Nou, Jonathan K. Covington, Dengxun Lai, Xavier Mayali, Cale O. Seymour, Juliet Johnston, Jian-Yu Jiao, Steffen Buessecker, Damon Mosier, Alise R. Muok, Nicole Torosian, Allison M. Cook, Ariane Briegel, Tanja Woyke, Emiley Eloe-Fadrosh, Nicole Shapiro, Scott G. Bryan, Savannah Sleezer, Joshua Dimapilis, Cristina Gonzalez, Lizett Gonzalez, Marlene Noriega, Matthias Hess, Ross P. Carlson, Lan Liu, Meng-Meng Li, Zheng-Han Lian, Siqii Zhu, Fan Liu, Xian Sun, Beile Gao, Ritesh Mewalal, Miranda Harmon-Smith, Ian K. Blaby, Jan-Fang Cheng, Peter K. Weber, Gabriela Grigorean, Wen-Jun Li, Anne E. Dekas, Jennifer E. Pett-Ridge, Jeremy A. Dodsworth, Marike Palmer, Brian P. Hedlund

Life Sciences Faculty Research

Few aerobic hyperthermophilic microorganisms degrade polysaccharides. Here, we describe the genome-enabled enrichment and optical tweezer-based isolation of an aerobic polysaccharide-degrading hyperthermophile, Fervidibacter sacchari, previously ascribed to candidate phylum Fervidibacteria. F. sacchari uses polysaccharides and monosaccharides for growth at 65–87.5 °C and expresses 191 carbohydrate-active enzymes (CAZymes) according to RNA-Seq and proteomics, including 31 with unusual glycoside hydrolase domains (GH109, GH177, GH179). Fluorescence in-situ hybridization and nanoscale secondary ion mass spectrometry confirmed rapid assimilation of 13C-starch in spring sediments. Purified GHs were optimally active at 80–100 °C on ten different polysaccharides. Finally, we propose reassigning Fervidibacteria as a class …

A 32-Year-Old Male With Corneal Hydrops, Justin Anderson, Ryan Grinnell, Kristina Domanski, Jamie Baydoun

School of Medicine Faculty Research

A 32-year-old male with a history of left eye keratoconus presented to the emergency department with left eye pain and blurry vision for two days. Out of concern for corneal hydrops, ophthalmology was consulted, and the diagnosis was confirmed. Per ophthalmology recommendations, the patient was started on hypertonic saline and prednisolone eye drops and referred to a corneal specialist.

Nevada Problem Gambling Treatment System, Annual Report - Fiscal Year 2024, Andrea Dassopoulos, Jared Weissman, Bo J. Bernhard

International Gaming Institute Faculty Research

In FY2024, Nevada Problem Gambling Services offered outpatient, residential treatment, and crisis intervention across five Problem Gambling Specialty Clinics statewide. Collectively, these clinics served 427 Nevada residents. Northern Nevada’s Bristlecone Family Resources and New Frontier Treatment Center provided both outpatient and residential services, while Southern Nevada’s Dr. Robert Hunter International Problem Gambling Center, Mental Health Counseling and Consulting (MHCC), and Hope Medical Center offered outpatient services to individuals affected by gambling and their concerned others.

Outpatient enrollments increased by 19% this fiscal year, while residential enrollments remained steady at the state-funded clinics. Additionally, 809 Nevadans were screened for gambling-related issues …

Self Less: A Book Talk Featuring Dr. Len Jessup, Len Jessup

Lincy Institute Events

The Lincy Institute hosted a book talk with Len Jessup, Ph.D., author of Forbes and Amazon best-selling book, “Self Less: Lessons Learned from A Life Devoted to Servant Leadership, in Five Acts.”

Self Less follows Jessup’s story of emotional vulnerability. Blending personal narrative with research, Jessup argues selfless leaders can maximize impact by guiding teams, not controlling them. He stresses the power of constant learning, surrounding yourself with people far smarter than you, and service to others. For leaders seeking to create meaningful change through personal growth, Jessup provides inspiration along with practical advice on inclusive leadership and securing stakeholder …

Debt And Earnings From Graduate Degrees At Unlv And Unr, Miguel Soriano Ralston, Kristian Thymianos, Caitlin J. Saladino, William E. Brown Jr.

Higher Education

This fact sheet examines debt and earnings data for graduate degrees awarded by the University of Nevada, Las Vegas (UNLV) and the University of Nevada, Reno (UNR). The original report from the HEA Group – a research and consulting firm focused on college access, value and economic mobility – includes data on debt-to-earnings ratio for various graduate degree programs at universities across the United States.

Temporal Variations In And Predictive Values Of Abg Results Prior To In-Hospital Cardiac Arrest, Mina Attin, Jie Rin, Chad Cross, Sidath Kapukotuwa, Ryan Shao, Peter G. Kaufmann, C.D. (Joey) Lin, Kim Arcoleo

Nursing Faculty Research

In-hospital cardiac arrest (IHCA) has been understudied relative to out-of-hospital cardiac arrest. Further, studies of IHCA have mainly focused on a limited number of pre-arrest patient characteristics (e.g., demographics, number and types of comorbidities). Arterial blood gas (ABG) analysis, one of the most common diagnostic tests for assessing and managing critically or acutely ill hospitalized patients, reflects pathophysiological changes associated with adverse events or complications, including IHCA. Yet the predictive and prognostic values of patterns of pre-arrest ABG parameters for IHCA have not been fully studied. The purpose of this retrospective pilot cohort study was to investigate temporal variations in …