Digital Commons Network^™

Assessing Planetiq Gnss-Ro Ionospheric Electron Density And Tecusing Ground-Based Ionosondes And Cosmic-2, Mohammed Alheyf, Mohamed S. Yamany, Ibrahim F. Ahmed

Faculty Publications

Radio occultation (RO) has become a key technique for monitoring the ionosphere by deriving electron density (Ne) profiles and total electron content (TEC) from GNSS signals. This study assesses the newly deployed PlanetiQ GNOMES constellation by validating its ionospheric Ne profiles and profile-based TEC against collocated measurements from ionosondes and the COSMIC-2 mission under both quiet and disturbed geomagnetic conditions. Data matching for the statistical validation uses conservative spatial thresholds of less than 1◦ in latitude and longitude and temporal limits of 30 min for ionosondes and 1 hfor COSMIC-2, supported by a dedicated sensitivity analysis, whereas storm-time case studies …

Don't Self-Opt Out Of Career Opportunities: Proceed With Confidence, Valerie Mendoza

Faculty Publications

While reflecting on your career in the past, have you ever stepped back from an opportunity that you wanted because you doubted yourself? In the workplace, confidence often gets mistaken for competence, and that means talented employees can be overlooked simply because they hesitate. The truth is that confidence isn’t something you’re born with. It’s a skill you can build. This session will get you started on building that skill.

We’ll explore practical strategies to strengthen your confidence starting today. We’ll also break down the key differences between how confident individuals act compared to those who aren’t, so you can …

Matching Two Long Interferometric Pathlengths Using Low Temporal Coherence Light For Finding Hong–Ou–Mandel Dip, Keith A. Wyman, Noah S. Everett, Anil K. Patnaik

Faculty Publications

Hong–Ou–Mandel (HOM) dip from a biphoton source in a two-photon interferometer provides a myriad of quantum tools for quantum communication and sensing. But the stringent requirements for spatial coherence between the photon pair makes it prohibitively difficult to observe high-fidelity HOM dip in long-distance free-space implementations, e.g., for the photon pairs involved in quantum communication need to match the two path lengths within a few 10 s of micron because of the short coherence width of the two-photon wave-packet. While many techniques for the pathlength balancing of two interferometric arms have been studied and applied extensively, such balancing is further …

A Global Internal Tide Modeling Framework For Improving Satellite Observations Of Fine-Scale Ocean Circulation, Badarvada Yadidya, Brian K. Arbic, Edward D. Zaron, Jay F. Shriver, Maarten C. Buijsman, Eric P. Chassignet, Loren Carrère, Michel Tchilibou

Faculty Publications

Small-scale oceanic eddies and filaments mediate the vertical exchange of heat and carbon within the global ocean. The Surface Water and Ocean Topography (SWOT) mission resolves these features through wide-swath interferometry, but internal tides often mask these observations. Non–phase-locked internal tides present special difficulty because they vary with the evolving ocean background. We show that this chaotic variability can be predicted. We use a data-assimilative ocean forecast model to resolve the mesoscale environment and separate tidal signals from the broader circulation. The model captures the organized structure of these incoherent waves in the independent SWOT measurements. Correcting for the total …

Winddensity-Mbir: Model-Based Iterative Reconstruction For Wind Tunnel 3d Density Estimation, Karl J. Weisenburger, Gregery T. Buzzard, Charles A. Bouman, Matthew R. Kemnetz

Faculty Publications

Experimentalists often use wind tunnels to study aerodynamic turbulence, but most wind tunnel imaging techniques are limited in their ability to take non-invasive three-dimensional (3D) density measurements of turbulence. Wavefront tomography is a technique that uses multiple wavefront measurements from various viewing angles to non-invasively measure the 3D density field of a turbulent medium. Existing methods make strong assumptions, such as a spline basis representation, to address the ill-conditioned nature of this problem. We formulate this problem as a Bayesian, sparse-view tomographic reconstruction problem and develop a model-based iterative reconstruction algorithm for measuring the volumetric 3D density field inside a …

Environmental, Social, And Governance (Esg) Research: A Systematic Review Of Recent Trends (2020–2024), Jiyeon Kim Ph.D., Wooyoung Yang

Faculty Publications

The 2020–2024 period marks a pivotal era in sustainable development, characterized by significant regulatory developments, including the EU Corporate Sustainability Reporting Directive (CSRD), the International Sustainability Standards Board standards, and the introduction of mandatory ESG reporting requirements worldwide. This review examines how recent policy changes have reshaped the linkages between ESG and sustainability. Following the PRISMA 2020 guidelines, we conducted a systematic review examining empirical studies of ESG–sustainability performance relationships published between 2020 and 2024. Studies examined the quantitative relationships between ESG sustainability performance and publicly traded corporations. Quality assessment employed the adapted Newcastle–Ottawa Scale with sustainability-specific criteria. From 2847 …

White Matter Microstructure Of Sensorimotor Projection Fibers In Chronic Low Back Pain, John R. White, Jennifer M.C. Vendemia, Zachary Baty, Sheri Silfies, Stephen A. Coombes

Faculty Publications

Introduction: 

Chronic low back pain (cLBP) is linked to altered cortical sensorimotor structure and function, yet white matter microstructure in sensorimotor projection fibers remains poorly characterized. Objective: To address this gap, we used diffusion MRI to comprehensively characterize sensorimotor projection fibers in 44 patients with cLBP and 41 matched healthy controls.

Methods: 

We estimated an array of microstructural measures, including fractional anisotropy (FA), extracellular free water fraction (FW), free water–corrected FA (fwcFA), and neurite orientation dispersion and density imaging (NODDI) metrics.

Results: 

General linear models identified significantly higher FA and fwcFA and lower orientation dispersion index (ODI) in cLBP vs …

Mapping The Tar Vrna Interaction With Hiv-1 Integrase, Jian Sun, Rahul Yadav, Tolga Catmakas, Luke Fisher, Nicholas C. Fitzkee, Jacques J. Kessl

Faculty Publications

A series of critical interactions within the viral core between viral RNA (vRNA) and HIV-1 Integrase (IN) has previously been reported. In these studies, contact points between vRNA and IN were identified using RNA-seq and MS-based protein foot-printing approaches. Several IN amino acids located in its C-terminal domain (CTD) were found to be essential for vRNA binding, and their alanine substitution severely impacted the correct morphogenesis of the mature viral core. Here, we have used the TAR element to extend these studies by performing a comprehensive mapping of the interaction by deploying RNA crosslinking and NMR methodologies. Together, these approaches …

One Assay To Rule Them All: Development Of A Global Environmental Dna Tool To Support Range-Wide Surveys Of An Imperiled Sawfish And Its Application In The Eastern Tropical Pacific, Juan C. Cubillos-M, Annmarie Fearing, Demian D. Chapman, Peter M. Kyne, P. Joana Dias, Cindy Gonzalez, Ryan N. Lehman, Yaliana Chichaco, Bryan L. Huerta-Beltrán, Kayla L. Mcculloch, Sarah M. Toepfer, John K. Carlson, Nicole M. Phillips

Faculty Publications

Environmental DNA (eDNA) has emerged as a powerful tool to support the conservation of threatened species. The sawfishes are one of the most imperiled vertebrate groups, with all five species classified as Critically Endangered on the IUCN Red List of Threatened Species. Owing to their toothy rostra, sawfishes are easily entangled in a wide range of fishing gear, with mortalities in fisheries and loss of habitat driving global declines. The Largetooth Sawfish, Pristis pristis, historically had a circumtropical range, but has experienced severe declines in geographic range and abundance. Viable populations are thought to be confined to northern Australia, but …

News Media Coverage Of Measure Ula: How The Story Of La’S Big Project To Address Homelessness And Affordable Housing Got Sidetracked By The Story Of Big Real Estate, Christopher R. Martin

Faculty Publications

“Measure ULA,” named after United to House LA, was approved by voters in Los Angeles in 2022 to create a dedicated, long-term funding source for solutions to homelessness in LA, including funding the construction of affordable homes and preventing homelessness by helping tenants stay in their homes. The funding would come from a new tax on the most expensive real estate transactions in L.A. (i.e., mansion tax), and would affect fewer than 4% of all property transactions. At the end of three years of local news coverage about Measure ULA from the Los Angeles Times and LAist, the news audience …

Experience Therapy: How Service Experiences Regulate Everyday Negative Affect, Chang Ma Ph.D., Jae Eun Park, Alei Fan, Laurie Wu

Faculty Publications

In today's fast-paced and high-pressure society, maintaining emotional well-being requires effective strategies for managing everyday negative affect. This research examines the role of service experiences in reducing negative affect and introduces experience therapy as a novel strategy for affect regulation. Through a series of studies, we assess the effectiveness of experience therapy and investigate how different service experiences—varying in levels of personal effort involvement and social involvement—contribute to negative affect regulation. The findings demonstrate that experiences requiring high personal effort and social involvement are particularly effective in alleviating negative affect, especially among emotionally stressed individuals. These effects are mediated, respectively, …

Recent Advances In The Juvenile-To-Adult Phase Transition, Yifei Liao, Mingli Xu

Faculty Publications

The transition from the juvenile to adult vegetative phase in Arabidopsis thaliana is a fundamental developmental process that integrates morphological and physiological maturation. Despite extensive study, how vegetative phase change is regulated and how this phase transition is coordinated with plant physiology remain incompletely understood. This review synthesizes recent advances in the molecular regulation and physiological functions of vegetative phase change. We summarize how developmental traits—such as leaf shape, trichome distribution, and margin serration—are controlled through distinct downstream targets of the age-dependent miR156–SPL pathway. We further highlight emerging insights into how epigenetic factors dynamically modify chromatin states of key regulatory …

The Historical Persistence Of Working-Class Culture: How Laborers Created The Ethical Foundation Of Western Civilization, Kenneth Atkinson

Faculty Publications

This article highlights four historical events that shape our present: the world’s first industrial strike in ancient Egypt to protest workers’ health and safety; working-class efforts to improve labor conditions during the Roman Republic and Middle Ages through strikes and the creation of guilds; the social justice activism of the prophets of Western religions (all working-class folks!); and the creation of the selfie and the transition from a culture of character to our present obsession with celebrities and individualism that began during the Renaissance. Each case highlights unique features of working-class culture, working class reactions to societal changes, and the …

Exploring Capacity For Future Sustainability Of Healthy Eating Policy, Systems, And Environmental Change Strategies Previously Implemented Through Snap-Ed Programming, Carrie L. Draper, Nicholas Younginer Ph.D.

Faculty Publications

Objective

Design

Setting

Participants

Phenomenon of Interest

Analysis

Results

The Phoenix Flora: Plant Survival, Succession, And Putative Adaptation In The Post-Atomic Landscapes Of Hiroshima And Nagasaki, Gian Marco Ludovici, Paola Amelia Tassi, Alba Iannotti, Colomba Russo, Fausto D'Agostino, Matilde Neble Segade, Timothy Mousseau, Andrea Malizia

Faculty Publications

The atomic bombings of Hiroshima and Nagasaki in 1945 created a unique environment of acute, high-dose ionizing radiation, contrasting sharply with the chronic low-dose rate exposure in the Chernobyl and Fukushima Exclusion Zones. This stands in stark contrast to the chronic, low-dose rate contamination that defines the Chernobyl and Fukushima Exclusion Zones. While the long-term ecological effects of the latter are well-documented, a systematic synthesis of the floral response to the atomic bombings is lacking. This review integrates historical data with modern radio-ecological principles to analyze plant survival and succession. We document the remarkable recovery of vegetation, from the resprouting …

The Phoenix Flora: Plant Survival, Succession, And Putative Adaptation In The Post-Atomic Landscapes Of Hiroshima And Nagasaki, Gian Marco Ludo, Paola Amelia Tassi, Alba Iannotti, Colomba Russo, Fausto D'Agostino, Matilde Neble Segade, Timothy Mousseau, Andrea Malizia

Faculty Publications

The atomic bombings of Hiroshima and Nagasaki in 1945 created a unique environment of acute, high-dose ionizing radiation, contrasting sharply with the chronic low-dose rate exposure in the Chernobyl and Fukushima Exclusion Zones. This stands in stark contrast to the chronic, low-dose rate contamination that defines the Chernobyl and Fukushima Exclusion Zones. While the long-term ecological effects of the latter are well-documented, a systematic synthesis of the floral response to the atomic bombings is lacking. This review integrates historical data with modern radio-ecological principles to analyze plant survival and succession. We document the remarkable recovery of vegetation, from the resprouting …

Phenome-Wide Association Study Of P2rx7 Identifies Schizophrenia And Mood Disorders As Primary Associated Phenotypes, Ling Zhu, Qiao Mao, Zhixiong Luo, Bin Chen, Yong Zhang, Xiaowei Lu, Ping Liu, Jiawu Ji, Xiaoping Wang, Kesheng Wang Phd, Ma, Bs, Xinghua Pan, Yuping Cao, Na Liu, Jennifer Luo, Lingjun Zuo, Zhiren Wang, Xingguang Luo, Xiaoyun Guo

Faculty Publications

Objectives: P2RX7 has been implicated in bipolar disorder, major depressive disorder, schizophrenia, anxiety disorders, Alzheimer's disease, and Parkinson's disease. However, the specificity and comparability of these as sociations remain unclear. This study aimed to systematically evaluate multiple neuropsychiatric disorders to identify those most robustly associated with P2RX7.

Methods: We analyzed 1861 imputed SNPs spanning the P2RX7 gene in 1,087,925 individuals from 72 inde pendent cohorts across 18 neuropsychiatric disorders. SNP-disease associations were assessed within each cohort, followed by meta-analysis and false discovery rate (FDR) correction to identify significant disease-risk variants. P2RX7 mRNA and protein expression across tissues or cells …

Adventist Church Next, Gerardo Oudri

Faculty Publications

No abstract provided.

Environmental Repair In The Energy Transition, Martin Lockman

Faculty Publications

For nearly a century, American laws have required mines, oil and gas companies, and other potentially hazardous industries to restore land affected by their activities to a safe condition when they are done with it. These laws represent a grand bargain—they allow operators to make profitable but damaging use of land today in exchange for the promise of expensive remediation tomorrow. However, this bargain has proven hard to enforce. Dozens of “zombie” mines scar mountains in Kentucky. Unrecorded “orphaned” wells poison groundwater in Texas. Over the past century, these laws have become the center of a legal arms race. Fossil …

Does Patient History Influence Capsular Contracture? An Exploratory Analysis With Machine Learning, Thomas M. Johnstone, Daniel Najafali, Jennifer K. Shaw, Justin M. Camacho, Chancellor Johnstone, Rahim S. Nazerali, Gordon K. Lee

Faculty Publications

Background: Capsular contracture (CC) is a frequent and distressing complication of breast augmentation and reconstruction. Although numerous patient-, surgical-, and implant-related risk factors have been proposed, reliable population-level predictors remain inconsistent across studies. This study evaluates whether administrative medical history, as encoded by ICD and CPT codes, contains sufficient predictive signal to identify patients at risk for CC using machine learning. Methods: Patients were queried from the MerativeTM MarketScan® Research Databases from 2003 to 2017 with CPT codes for implant-based breast reconstruction and augmentation. ICD codes were then used to identify all events and conditions of a patient’s history. Hyperparameter-tuned …

Backscattering By Particles Of Sizes <0.2 Μm In Seawater, Xiaodong Zhang, Yuanheng Xiong

Faculty Publications

We measured the angular scattering functions at 517 nm in different size fractions, including bulk and very small particles (VSP for diameters <0.2 μm), in a variety of waters ranging from coasts to open oceans and from surface to depths as deep as 3,000 m. The measurements revealed a strong covariation in backscattering between VSP and bulk particle populations. The fractional contribution by VSP decreases from 60% in clear oceanic water where bulk particle backscattering coefficient bbp is on the order of 0.001 m⁻¹ to <2% in turbid coastal water where bbp ∼0.1 m⁻¹. An empirical model is developed (r² = 0.89) to estimate bbp for VSP from the bulk bbp, which can now be routinely obtained from satellite observations.

Panda-Plus-Bench: A Clinical Benchmark For Evaluating The Robustness Of Ai Foundation Models In Prostate Cancer Diagnosis, Joshua L. Ebbert, Dennis Della Corte

Faculty Publications

Artificial intelligence foundation models are increasingly deployed for prostate cancer Gleason grading, where GP3/GP4 distinction directly impacts treatment decisions (active surveillance vs. intervention). However, these models may achieve high validation accuracy by learning specimen-specific artifacts rather than generalizable biological features, limiting real-world clinical utility. We introduce PANDA-PLUS-Bench, a curated benchmark dataset derived from expertly annotated prostate biopsies designed specifically to quantify this failure mode. The benchmark comprises nine carefully selected whole slide images from nine unique patients containing diverse Gleason patterns, with non-overlapping tissue patches extracted at both 512 × 512 and 224 × 224-pixel resolutions across eight augmentation conditions. …

The Meaning And Measurement Of Unrealised Fertility: A Comparison Of Measures Among Women Ages 40-49 In The United States, Kathleen Broussard

Faculty Publications

Unrealised fertility – when people fall short of their childbearing goals – is inconsistently defined and measured, leading to wide variation in estimates of its prevalence and implications for health and well-being. Using a nationally representative sample of U.S. women aged 40–49, this study compares four potential approaches to measurement, finding prevalence estimates that range from 3.5% to 22.4% across indicators. Multivariable logistic regression models reveal that the social and reproductive health correlates of unrealised fertility also vary according to the selected indicator. Improved measures of unrealised fertility are needed to inform our understanding of fertility barriers, including who is …

Faculty Focused, Student Supported: Managing Faculty Research In Your Institutional Repository, Ellen Amatangelo, Kelsey Bradshaw, Jillian Peterson, Allejah Young

Faculty Publications

The focus of BYU Library’s Faculty CV Project is to provide a simplified avenue for faculty members to add their scholarly work to our institutional repository, thus making it more accessible to a broader audience. Our project highlights effective strategies for collaborative communication across campus units, along with the use of practical project management tools to track project status. In addition, the Scholarly Publishing Unit provides training and support for managing the increasing demand for scholarly research by utilizing student employees, as well as faculty research assistants. This further supports our institution's goal of providing more experiential learning opportunities.

The Lawyer Is In!: Copyright Litigation Over Time, Ellen Amatangelo, Marissa Bischoff, Morgan Capitan, Jack Newman

Faculty Publications

This presentation is an overview of copyright litigation that has affected libraries. The session provides a hands-on look at specific cases and how they have affected and changed library work over time. A lawyer from the BYU Copyright Office provides commentary on each case and librarians discuss the impact of these cases on library policy. This helps to alleviate librarians' fear of copyright and legislation and provides guiding principles for the future.

This session was hosted by the Copyright Education Roundtable and presented at the Utah Library Association 2026 Annual Conference.

Operational Responsibility In Ai Governance: A User-Centric Liability Framework, Zhengyang Chen

Faculty Publications

Who bears responsibility when artificial intelligence systems cause harm? This question has become central to AI ethics and governance. Most existing approaches focus on developers, yet this faces serious practical and theoretical problems. Drawing on tort law, agency law, and philosophy of technology, this paper argues that AI should be understood as an instrument whose outputs remain the responsibility of human operators rather than developers. We call this 'user-centric governance.' Placing accountability with deployers promotes public trust by creating clear lines of responsibility, a concern that governance approaches have often overlooked. It preserves democratic accountability by keeping human actors answerable …

The Impact Of Dispatch Weight Restrictions On Derivative Aircraft Propulsion Technology Evaluation, Timothy T. Takahashi

Faculty Publications

This paper arises from an ARPA-E-sponsored project seeking design opportunities to retrofit existing aircraft with hybrid electric propulsion systems. Engineers typically configure aircraft to fly a given payload over a long range, which is subject to field performance constraints. In practice, operators fly transport aircraft (civilian and military) in a manner where dispatch consciously trades payload and/or range to enable safe operations to and from short runways. This work describes a simple yet novel analytical process suitable for inclusion in conceptual design or technology portfolio trade study evaluations to assess the impacts of weight-restricted dispatch upon usable payloads. We find …

Advanced Finite Element Modeling And Design Enhancement Of Slender Square Concrete-Filled Double-Skin Steel Tubular Columns, Mahmoud T. Nawar, Ayman El-Zohairy, Mohamed Emara, Raghda I. Halima

Faculty Publications

Limited research exists on the behavior of square CFDST slender columns, especially under the consideration of the relation global buckling and confinement effect. This study evaluates square concrete-filled double-skin steel tubular (CFDST) columns using nonlinear finite element analysis (FEA) to simulate structural behavior under axial and eccentric loads until failure. Parametric analyses of extensive specimens of square CFDST pinended columns evaluate various parameters, providing design insights for engineering applications. The study was conducted over a wide range of slenderness ratios. Four concrete varieties with compressive strengths were tested: normal concrete (NC), engineered cementitious composites (ECCs), high-strength concrete (HSC), and ultra-high-strength …

Intern Experience And Support In The Byu-Public School Partnership, Ryan S. Nixon, Rebecca K. Hunter, Paul H. Ricks

Faculty Publications

This study examines the experiences and perceived support of early childhood and elementary education interns in the BYU–Public School Partnership. In June 2025, 137 former interns (54% response rate) completed an anonymous survey with open-ended prompts, and responses were qualitatively analyzed. Most interns characterized the experience as positive or both good and hard (84%), though 16% reported largely negative experiences. Relationships with students were consistently identified as the most meaningful aspect, often providing motivation during difficult periods. Support was most frequently attributed to facilitators, with additional support from grade-level teams and Clinical Faculty Associates (CFAs). While generally helpful, support was …

Effects Of Niobium On The Mechanical And Oxidation Properties Of Additively Manufactured Tungsten, Alexander Lesieur, Cayla Eckley, Ryan A. Kemnitz

Faculty Publications

Although additive manufacturing presents a novel and customizable approach to fabricating tungsten (W) alloys, the layer-by-layer production technique presents a unique set of processing challenges which are further exacerbated by the metal’s refractory properties. In this study, additions of niobium (Nb) were found to improve the mechanical properties and oxidation resistance of additively manufactured W. Microstructural investigation revealed the effect of Nb on the cracking, grain size, and texture in the as-built material. Mechanical compression testing showed significant improvement in ductility with increasing Nb content. The low concentrations of Nb used did not induce large changes in the yield strength …