Digital Commons Network^™

Geospatial Disparities In Adolescent Mental Health Resources: School- And Community-Level Evidence From Travis County, Texas, Sharon V Munroe, Jingjing Gao, Gayla Ferguson, Muinat Abolore Idris, Eric C Jones

Faculty, Staff and Student Publications

Background: Adolescents in the United States face growing mental health challenges, with nearly one in three high school students reporting poor mental health in the past 30 days. Schools increasingly serve as key access points for mental health care. However, geographic disparities in access to school-based mental health services remain underexplored.

Purpose: This study examines the spatial distribution of adolescent mental health resources in Travis County, Texas, and evaluates how school- and community-level factors are associated with the presence of on-site school social workers.

Methods: School locations, enrollment data, and the presence of on-site social workers were mapped and analyzed …

Understanding Ehlers-Danlos Syndrome: A Claims-Based Analysis Of Healthcare Cost Patterns, Samson A Oyediran, Youngran Kim, Zhanna Novikov, Trudy M Krause

Faculty, Staff and Student Publications

Background: Ehlers-Danlos Syndrome (EDS) is a rare connective tissue disorder associated with substantial clinical complexity and healthcare utilization. Despite increasing recognition of EDS, little is known about its economic burden in the United States.

Objective: To assess the all-cause healthcare costs for individuals with newly diagnosed EDS during the pre-diagnosis year and the first 2 years post-diagnosis.

Methods: A retrospective cohort study was conducted using the Merative™ MarketScan® Commercial Claims and Encounters Database (2016-2022). Newly diagnosed patients were identified using ICD-10-CM codes, with the first observed diagnosis defined as the index date. Continuous enrollment for 12 months pre-index and 24 …

Latent Classification Of Time-Dependent Transition Rates In Longitudinal Binary Outcome Data, Joonha Chang, Wenyaw Chan

Faculty, Staff and Student Publications

Continuous-time Markov chain (CTMC) models and latent classification methods are commonly used to analyze longitudinal categorical outcomes in medical research. While CTMC models are popular for their simplicity and effectiveness, their assumption of constant transition rates presents limitations in capturing dynamic behaviors. To address this, non-homogeneous continuous-time Markov chains (NH-CTMCs) have been developed, incorporating time-varying transition rates to enhance model flexibility. In this study, we leverage closed-form transition probabilities for a fully ergodic two-state NH-CTMC model and propose a latent class clustering approach to identify heterogeneous transition rate patterns within the population. We emphasize the potential advantages of these models …

“If He Did It, I Can Do It, Too. I Can Change My Life Around”: The Social Model Of Recovery Within The Context Of Recovery Homes Accepting Residents Prescribed Medications For Opioid Use Disorder, Jodie M Dewey, Kathryn R Gallardo, Meenakshi S Subbaraman, Amy A Mericle

Faculty, Staff and Student Publications

Introduction: This paper provides an in-depth examination of examines four recovery residences, that serve individuals prescribed medications for opioid use disorder (MOUD). The study has two primary aims: first, to deepen understanding of how recovery residences adopt and operationalize Social Model of Recovery principles; and second, to identify gaps in staff integration of residents receiving MOUD-gaps that may either support or undermine the integrity of the social model within these settings.

Methods: We conducted semi-structured interviews with 17 residents receiving MOUD living in four participating recovery homes. The interviews were conducted between August 2022 and January 2024 using a semi-structured …

Corrigendum To 'Continuous Vital Sign Monitoring On Surgical Wards: The Cosmos Pilot, Nikola Anusic, Alper Gulluoglu, Elyad Ekrami, Edward J Mascha, Shuyi Li, René Coffeng, Alparslan Turan, Amber Clemens, Christine Perez, John W Beard, Daniel I Sessler, Cosmos Pilot Investigators

Faculty, Staff and Student Publications

Study objectives: Alerts for vital sign abnormalities seek to identify meaningful patient instability while limiting alarm fatigue. Optimal vital sign alarm settings for postoperative patients remain unknown, as is whether alerts lead to effective clinical responses reducing vital sign disturbances. We conducted a 2-phase pilot study to identify thresholds and delays and test the hypothesis that alerts from continuous monitoring reduce the duration of vital sign abnormalities.

Design: Two-phase pilot.

Patients: 250 adults having major non-cardiac surgery.

Setting: Surgical wards.

Intervention: All patients had routine vital sign monitoring by nurses at 4-h intervals. We initially continuously recorded clinician-blinded saturation, heart …

Pregnancy And Breastfeeding Are Associated With Less Later-Life Cognitive Decline In A Longitudinal, Prospective Cohort, Molly M Fox, Jennifer E Bramen, Dayoon Kwon, Mark A Espeland, Yijia Sun, Li Zhang, Aladdin H Shadyab, Ramon Casanova, Joann E Manson, Marcus Y Chang, Verna R Porter, Leslie V Farland, Qian Xiao, Robert A Wild, Prabha Siddarth, Carolyn J Crandall

Faculty, Staff and Student Publications

Introduction: The brains of female mammals evolved to undergo structural and functional changes during pregnancy and lactation, equipping them for motherhood. However, long-term cognitive health implications of these adaptations in women are poorly understood.

Methods: In the Women's Health Initiative (WHI) Memory Study (WHIMS; n = 7427) and WHI Study of Cognitive Aging (WHISCA; n = 2304), postmenopausal women completed reproductive history interviews, annual global cognitive assessment from mean age 70 for up to 13 years, and multi-domain cognitive testing for up to 8 years.

Results: Each additional month pregnant was associated with higher scores of global cognition. Each additional …

Artificial Light At Night Extends Pollen Season And Elevates Allergen Exposure, Brandt Geist, Lin Meng, Daniel S W Katz, Huidong Li, Franz Hölker, Qian Xiao

Faculty, Staff and Student Publications

Artificial light at night (ALAN), a growing environmental stressor in urban ecosystems, disrupts natural light-dark cycles and alters plant phenological events such as leaf-out and flowering. However, the extent to which ALAN influences airborne pollen season timing and exacerbates allergy-related health risks remains largely understudied. This study investigates how ALAN influences the timing and duration of the airborne pollen season across the Northeastern United States from 2012 to 2023 and the consequences of allergenic pollen exposure. Using daily pollen concentrations from the National Allergy Bureau, ALAN data from the Visible Infrared Imaging Radiometer Suite product, and gridded Daymet climate data, …

Plasma Proteomic Profile Of Dietary Potassium And Incident Ckd, Jiaqi Yang, Lauren Bernard, Jingsha Chen, Valerie K Sullivan, Bing Yu, Eugene P Rhee, Paul A Welling, Casey M Rebholz

Faculty, Staff and Student Publications

Background:: There is a need for objective biomarkers of dietary potassium. The mechanisms through which dietary potassium influences kidney health are incompletely understood.

Methods:: Atherosclerosis Risk in Communities study participants at visit 3 (1993–1995) with dietary and proteomics data were randomly divided into discovery (N=6,814) and replication (N=3,380) sets. We examined associations between dietary potassium and 4,955 aptamers using multivariable linear regression, adjusting for sociodemographic factors, health behaviors, and estimated glomerular filtration rate, with a false discovery rate of 0.05. Then, we tested the prospective associations between potassium-related proteins and incident chronic kidney disease (CKD).

Results:: …

Examining Tobacco Prevention And Cessation Among Dental Students In Southern Italy, Olga Di Fede, Samuel Tundealao, David Okuji, Gaetano La Mantia, Irene Tamí-Maury

Faculty, Staff and Student Publications

Background: Previous studies have reported that tobacco use among healthcare providers (HCPs) has a negative impact on their beliefs and attitudes toward tobacco prevention and control measures. However, little is known about these among Italian dental students. Therefore, this single-site study examined tobacco use behaviors and the knowledge, attitudes, and perceptions of dental students at a public university in Southern Italy regarding tobacco prevention and control.

Methods: A cross-sectional study through an online survey was conducted among 115 students aged 18 + years enrolled in dentistry and dental hygiene programs at a Southern Italy university. Chi-squared, Fisher's, t-tests, and …

Adapting A Smartphone-Based Auricular Point Acupressure Self-Management Program For Rural Chronic Musculoskeletal Pain: Qualitative Study, Jungkyung Min, Peiyin Hung, Jane N Bolin, Rupsikha Bora, Sarah Pace, Patricia Pitones, Hulin Wu, Jennifer Kawi

Faculty, Staff and Student Publications

Background: Chronic musculoskeletal pain is more prevalent in rural areas where access to pain interventions, including complementary approaches like Auricular Point Acupressure (APA), remains limited. APA is a non-invasive, needle-free approach, and its smartphone-based self-management delivery model has not been optimized for rural contexts.

Objectives: To explore the perspectives of rural partners on adapting a smartphone-based Auricular Point Acupressure-Self-Management (APA-SM) program to better meet rural needs. Study objectives were to: (1) refine the APA-SM program for rural adults, (2) identify implementation barriers, (3) understand practice workflows and engagement, and (4) identify strategies to integrate the APA-SM program into rural pain …

The Disability History Of Brown V. Board Of Education, Britney Wilson

Articles & Chapters

In 1952, two years before the Supreme Court of the United States decided Brown v. Board of Education, Black deaf students in Washington, D.C., who had been prohibited from attending the local school for white deaf students and forced to go to school in Maryland, won the right to be educated in their hometowns in Miller v. Board of Education of District of Columbia. Brown is heralded as one of the most important racial justice cases of all time. It overturned Plessy v. Ferguson's longstanding "separate but equal" mandate and ruled that the segregation of students based on race violates …

Carbon Nanotube/ Thermoplastic Polyurethane (Cnt/Tpu)-Based Triboelectric Nanogenerator With Self-Charge Pumping For Implantable Knee Load Sensing And Energy Harvesting, Osama Abdalla, Maryam Hosseini, Milad Azami, Amir Ameli, Emre Salman, Milutin Stanacevic, Ryan Willing, Shahrzad Towfighian

Mechanical Engineering Faculty Scholarship

Aseptic loosening and joint instability remain the primary modes of failure in total knee arthroplasty (TKA). To provide real-time biomechanical load monitoring, this study presents a triboelectric nanogenerator (TENG) utilizing a carbon nanotube/foamed thermoplastic polyurethane (CNT/TPU) composite dielectric layer paired with a Kapton tape between dual electrodes. By leveraging the triboelectric effect, the device functions simultaneously as an energy harvester and a self-powered load sensor. To overcome power density limitations, a self-charge pumping mechanism via a multi-stage voltage multiplier circuit (VMC) was integrated and evaluated under physiological cyclic loading (2100 N at 1 Hz). The system’s charge dynamics were further …

Data For Forthcoming Article: "Employing Zebrafish To Understand Genetic Drivers Of Epilepsy-Related Comorbid Behaviors", Colleen Carpenter-Swanson

Biology Faculty Publications

Forthcoming from Frontiers in Pharmacology:

"Children with epilepsy frequently experience a range of significant comorbidities beyond seizures, such as motor dysfunction, cognitive impairment, and neurodevelopmental delays. In some cases, these comorbidities contribute more significantly to overall disease burden than the seizures themselves. To improve quality-of-life (QOL) for these children, treatment options should be selected that control seizures and ameliorate comorbidities. Unfortunately, such therapeutics remain largely elusive. Addressing this issue requires suitable preclinical models. Here we used CRISPR-generated zebrafish with single-gene mutations linked to pediatric epilepsy and applied clinically-relevant behavioral assays to study the effects of these mutations. Using high-throughput locomotion-based …

Subgroup Identification Of Disparities In Buprenorphine Discontinuation In Opioid-Use Disorder: A Virtual Twins Machine Learning Approach Using Nationwide United States Claims Data, 2006–2022, Kehe Zhang, Paula A Jaimes-Buitron, Wanru Guo, Yanmin Gong, Yuanxiong Guo, Carolina Vivas Valencia, Cici Bauer

Faculty, Staff and Student Publications

Buprenorphine retention is crucial for effective treatment of opioid use disorder (OUD), yet disparities in treatment discontinuation persist. This study aims to identify and quantify disparities in buprenorphine treatment retention using a machine learning framework adapted from Virtual Twins approach focusing on disparities related to sex, age, insurance type, geographic region, mental health status and community-level Social Vulnerability Index (SVI). Using a nationwide longitudinal cohort, we applied a two-stage machine learning approach. In Stage one, we trained classification models to estimate the counterfactual differences in treatment discontinuation across disparity types. Model performance was assessed using C-statistics and precision-recall curve. In …

Improving Overall Risk Ranking Via Subgroup-Level Information Borrowing In Survival Risk Stratification, Tia S Thomas, Jing Ning, Ruosha Li

Faculty, Staff and Student Publications

Effective risk stratification is essential for providing tailored therapies, improving patient outcomes, and optimizing healthcare resources by identifying sub-populations with similar health risks. However, accurate risk ranking is challenging in the presence of heterogeneous subgroups. Under these instances, subgroup-level information can be leveraged to refine the overall risk ranking. We propose a novel approach that integrates within-subgroup risk ranking percentiles to enhance the overall cohort risk stratification. This method uses both a global model and subgroup-specific models along with optimized weights to improve discriminatory performance across the entire cohort. The proposed method is validated through extensive simulations and applied to …

Relationship Between Foraminiferal Assemblages And Cassiopea Coverage Across A Gradient Of Human Influence In Jobos Bay National Estuarine Research Reserve, Puerto Rico, Nylah Barber, Angelique Rosa Marín, Natalia López-Figueroa, Darma Ramos-Negrón, Xiomara Cruz-De León, Andrea Acevedo Colón, Pamela Hallock

Making Waves REU

Ecological Relevance: Foraminifera and Cassiopea (upside down-jellyfish) are symbiont-bearing organisms that respond rapidly to environmental changes in tropical systems, hence potential candidates as bioindicators to support ecological monitoring at JBNERR. Purpose: By using foraminiferal assemblages and Cassiopea as potential bioindicators, we can assess environmental conditions and contribute to management needs in the reserve. Hypothesis: Foraminiferal assemblages and the percent coverage of Cassiopea will reflect the habitat conditions of sites with varying levels of human influence at JBNERR.

A Qualitative Examination Of Human Papillomavirus Vaccine Access, Beliefs, And Behaviors Among Adult Males Aged 18–35: Applying The Health Stigma And Discrimination Framework, Jacquelin I Cordero, Louis D Brown, Jesús M Alemán, María E Fernández, Serena A Rodríguez, Eva M Moya

Faculty, Staff and Student Publications

Background: Males, who disproportionately account for 83% of oropharyngeal cancer cases, are underrepresented in health promotion research, including human papillomavirus (HPV) vaccination studies. The initial exclusion of males in HPV vaccine research, policies, and interventions has negatively affected male vaccine uptake. Furthermore, stigma, a well-documented barrier to healthcare engagement, has been overlooked in HPV vaccination behaviors. This study aimed to provide a more contextualized understanding of HPV vaccine disparities among adult males by applying the Health Stigma and Discrimination Framework (HSDF) to examine how stigma is produced, enacted, and sustained across social systems, which may impact male vaccine uptake.

Methods: …

The Longitudinal Effect Of Repetition And Practice On The Accuracy Of Lay Anal Examinations For Detecting Perianal And Anal Canal Abnormalities: A Prospective Study, Alan G Nyitray, Timothy L Mcauliffe, Jenna Nitkowski, Cameron Liebert, Michael D Swartz, Ashish A Deshmukh, Jared Kerman, Ellen Almirol, John A Schneider, J Michael Wilkerson, Lu-Yu Hwang, Derek Smith, Duo Yu, Aniruddha Hazra, Elizabeth Y Chiao

Faculty, Staff and Student Publications

Background: While anal cancer screening is now recommended in several countries for high-incidence populations, barriers impede screening uptake. It is well known that patient recognition of symptoms increases cancer screening uptake, and we previously demonstrated that patients can detect small masses at the perianus and in the anal canal. In this current analysis, we aimed to longitudinally assess the effect of repetition and practice on patient self-recognition of small masses.

Methods: Individuals and couples of sexual minority men and transgender women were taught to conduct an anal self-examination or anal companion examination (ASE/ACE) at visit 1 and then randomized to …

Eco-Friendly Solvent-Based Fabrication Of Single-Layer And Polydopamine-Modified Bilayer Pvdf-Hfp Membranes, Eesh M. Kulshrestha

Theses and Dissertations--Chemical and Materials Engineering

The growing global demand for clean drinking water has intensified the need for advanced water treatment technologies capable of efficiently removing contaminants while maintaining environmental sustainability. Polymeric membrane systems have emerged as an effective approach for water separations due to their high separation efficiency, simplicity, and adaptability to a wide range of water treatment applications. However, traditional membrane fabrication processes often rely on toxic organic solvents, such as N-methyl-2-pyrrolidone (NMP) and diemethylacetamide (DMAc), which pose environmental and health risks. These concerns have led to an increase in regulatory restrictions, primarily through the Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) …

Investigation Of Succinylated Zwitterionic Polyethylenimine/Dna Complexes: Performance In Serum, Internalization, And Intracellular Fate, Levi Lampe

Theses and Dissertations--Chemical and Materials Engineering

Gene therapy has promised to revolutionize medicine since the earliest clinical trials, but a lack of delivery methods that are both safe and efficient has hampered progress. Gene therapy with viral vectors is effective at delivering nucleic acids to cells, but is associated with dangerous immunogenic responses and cancer-causing insertions into the genome. Viral vectors are also among the most prohibitively costly therapeutics in medicine. Polymeric vectors avoid these dangers and are made from inexpensive, off-the- shelf materials, but have been hindered by poor efficiency compared to viral vectors.

A benchmark polymer for in vitro nucleic acid delivery has been …

Religious Radio Broadcasting In Ukraine In The Context Of Digital Mediatisation And Social Transformation, Oleh Sokolovskyi, Olena Yurchuk

Occasional Papers on Religion in Eastern Europe

The study carries out a religious studies analysis of contemporary forms of spiritual communication implemented through audio and digital media platforms. The work highlights the particular features of organizing religious broadcasting under conditions of transformation of the information space, when traditional models of transmitting doctrine become integrated into new technological formats. Mechanisms of the formation of religious identity, ways of maintaining spiritual continuity, and strategies of interaction between religious institutions and their audiences are examined. An analysis is conducted of the structures that ensure access to spiritual content, including forms of catechetical communication, mentoring practices, and models of pastoral support …

Impact Of Preoperative Symptom Duration On Postoperative Outcomes Following Lumbar Spine Surgery, Ahmed Anas Zahra, Ayman Mohamed Basha

Mansoura Medical Journal

Background: The optimal timing for lumbar spine surgery (LSS) relative to symptom duration remains debatable. While surgical delays are common, their impact on postoperative outcomes is not fully elucidated. This study evaluated the relationship between preoperative symptom duration and postoperative outcomes following LSS.

Methods: A prospective observational study was conducted on 60 adults undergoing LSS (decompression and/or fusion) at a single university hospital. Participants were stratified into three groups based on symptom duration:Months, 3-12 months, and >12 months. The primary outcome was functional disability assessed by the Oswestry Disability Index (ODI). Secondary outcomes included pain intensity (Visual Analog Scale, VAS), …

Fetal Foot Length As A Predictor Of Gestational Age, Ruman Bashir Abdi Kadie, Hossam El-Dyn El-Sayed Gouda, Mohamad Ahmad El-Sayed Mohamad Emam, Alhussein Ahmed Mohamed

Mansoura Medical Journal

Background: Accurate estimation of gestational age (GA) is essential for obstetric care. Conventional ultrasound (US) biometric parameters may be limited in certain clinical situations. Fetal foot length (FFL) has been proposed as an alternative measurement, but its role requires further evaluation.

Aim of study: To examine the association between fetal foot length and ultrasound-based gestational age, and to explore its relationship with other fetal biometric parameters in uncomplicated singleton pregnancies.

Methods: This cross-sectional study included 200 pregnant women who underwent two-dimensional transabdominal ultrasound. Standard fetal biometric parameters—including biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), and femur length …

Demographic Characteristics In Patients With Heart Failure And Iron Deficiency, Ahmed Alaa Eldin Abd Elazeem, Abdul Razek Abdul Lateef Maaty, Hanan Ahmed Azzam, Ahmed Mohamed Reda

Mansoura Medical Journal

Background: Iron deficiency (ID) is a major and prevalent comorbidity among heart failure (HF) patients. It is associated with poor exercise tolerance, recurrent hospitalization and higher mortality. Studying patients’ demographics helps to determine vulnerable groups to ID, risk factors and associated comorbidities to be considered during screening and management.

Aim of the Work: To study the demographic characteristics of heart failure patients with iron deficiency.

Patients and Methods: A cross sectional observational study was conducted at a tertiary care university hospital at Delta region of Egypt between year 2024 and 2026. Among 117 HF patients, 100 HF patients …

Signs Of Life: Interkingdom Communication And The Sympoietic Organism, Scott F. Gilbert

Biology Faculty Works

No abstract provided.

Using “Big Data” And Non-Linear Machine Learning To Infer Groundwater Contamination Mechanisms Across A Spatially Extensive, Geologically Heterogeneous Region, Ioan Petculescu, Anna Majury, R. Stephen Brown, Kevin Mcdermott, Paul Hynds

Research Outputs: 2025-Present

Groundwater accounts for approximately 98% of available freshwater, with >2 billion people relying on it as a primary drinking water source. Notwithstanding its importance, specific groundwater quality parameters - namely microbial concentrations and non-Escherichia coli coliforms (NEC) - remain understudied. The current study sought to address this gap by modelling three distinct Contamination Indices (CI) corresponding to E. coli concentration, NEC concentration, and the NEC:E. coli concentration ratio. CIs were developed for south Ontario (115,693 km²) using ∼1 million samples from ∼290,000 wells collected between 2010 and 2021. To permit modelling, CIs were linked to 50 subregion-specific variables …

Editorial: Antimicrobial Resistance In Aquatic Environments — Bridging Surveillance, Ecology, And One Health Action, Jean O'Dwyer, Paul D. Hynds, Brigid Hooban, Michael Ryan, Liam P. Burke

Research Outputs: 2025-Present

Antimicrobial resistance (AMR) is widely recognised as a majorglobal threat, with health and economic consequences extending acrossand overlapping with human, animal, and environmental systems [1].Perhaps the best example of a One Health challenge, the so-called AMR“silent pandemic” is a complex problem driven by anthropogenic activities, which must be tackled across the three realms [2]. Efforts toaddress AMR have historically focused on clinical and agricultural settings, however, there is increasing recognition that environmentalpathways play a critical role in the emergence, persistence, anddissemination of antimicrobial resistant organisms (AROs) and antimicrobial resistance genes (ARGs) [3,4]. Aquatic environments are ofparticular importance as they receive …

A Glimpse Of Early Ellensburg, Washington From The 1980'S Excavations At 45kt800, Leah M. Shenyer

All Master's Theses

The Robber’s Roost site, located in the town of Ellensburg, Washington, was excavated in a partnership between Central Washington Archaeological Survey and Kittitas County Youth Services in the summers of 1986 and 1988. In 2023, the collection consisted of 110 boxes of artifacts including bottle glass, ceramics, leather, and faunal remains, with no significant prior analysis and little information on the dig itself. The purpose of this thesis is to document this poorly-known excavation project and gain a better understanding of Ellensburg’s history through analysis of the artifacts recovered. I compiled all the available paper records and communicated  with past …

Chemical And Thermal Degradability Of Nano-Al2o3 And Mwcnt-Enhanced Jojoba And Castor Oils For Sustainable Machining Application, Basma Abdelmoniem, Abdelhay M. Abdelhay, Nariman E. Elbaly, Mohamed O. Helmy, Azza Barakat

Trends in advanced sciences and technology

In this work, castor and jojoba oils were used to prepare nanofluids. Medium molecular weight carbon nanotubes (MWCNTs) and 0.1 wt% Al₂O₃ were used in two process steps. Sodium dodecyl sulfate (SDS) was used as a surfactant. Single and hybrid nanoparticle systems were developed to improve homogeneity. The chemical stability and interfacial interactions of the prepared nanofluids were investigated using Fourier transform infrared spectroscopy (FT-IR). The results showed that neither alumina (Al₂O₃) nor multi-walled carbon nanotubes (MWCNTs) affected the chemical structure of the lubricant. To ensure the thermal stability of the modified oils at temperatures up …

Utilizing Free Blood Pressure Cuffs To Address Sdoh Barriers In Patient With Uncontrolled Hypertension, Alysse Lalonde, Taylor Carter, Meredith Lewis, Jennifer Clem

UAB Huntsville Research Day - All Presentations

2026 research poster