Digital Commons Network^™

Interview With Orca Winner Xiao Cheng Zeng; Unl Chemistry; Computational/Theoretical; Nebraska Ice & Gold Nanocages, Mark Griep, Xiao Cheng Zeng

UNL ORCA Interview Series

Xiao Cheng Zeng became a chemistry professor at the University of Nebraska-Lincoln in 1993, quickly rose through the ranks, and was in the department for 29 years. In 2022, he left to become head of the Department of Materials Science and Engineering at the City University of Hong Kong. Xiao was born in Beijing and earned a bachelor’s in physics at the University of Beijing in 1984. Next, he traveled 6800 miles east to Ohio State University in Columbus where he earned his doctorate in condensed matter physics. He followed that up with two postdoctoral experiences, first at the University …

Expanding Transmobilities: Understanding Genderdiverse And Transgender Travel Behavior Through An Art-Informed Methodology, Nicholas Michael Puczkowskyj

Dissertations and Theses

Transgender and genderdiverse people face discrimination and harassment in public when making trips in Portland, OR. People who identify as genderdiverse or transgender create unique travel behavior due to the influence of their internalized and expressed gender identity and through interactions in public. This dissertation examines how gender identity influences the travel behavior of genderdiverse and transgender people and how these experiences influence their subjective wellbeing when making trips in Portland, Oregon. Traditional one-on-one interviews were conducted in conjunction with allowing the interviewees to produce art as a non-verbal form of expression and communication of their experiences making trips in …

Narrative Discourse Predictors Of Response To Naming Intervention In Aphasia, Dirk B. Den Ouden, Laura Giglio, Sigfus Kristinsson, Leonardo Bonilha, Deena Schwen Blackett, Brielle C. Stark, Janina Wilmskoetter, Julius Fridriksson

Communication Sciences and Disorders Faculty Articles and Research

Purpose:

Method:

Relationship Between Sleep And Meal Timing With Glycemia Parameters In Individuals With Obesity Participating In A Randomized Time-Restricted Eating Study., Sirimon Reutrakul, Stacey L. Simon, Qi Wang, Emily N C Manoogian, Satchindananda Panda, Suryeon Ryu, Zan Gao, Caleb Griffiths, Erika Helgeson, Douglas G. Mashek, Niki Oldenburg, Lisa Senye Chow

Manuscripts, Articles, Book Chapters and Other Papers

Background/Objectives: Circadian misalignment, including mistimed sleep or eating, is associated with altered glucose metabolism. The importance of eating window timing for time-restricted eating (TRE) is increasingly recognized. This secondary analysis examined associations between meal to sleep timing intervals and glycemic parameters in individuals with obesity across three dietary interventions [TRE, CR: caloric restriction, and UE: unrestricted eating]. Methods: Participants aged 18-65 years with obesity were randomized to a 12-week intervention: TRE (8 h eating window), CR (15% reduction in daily caloric intake), or UE (usual eating habits). CGM and actigraphy were assessed over two weeks at baseline and end-intervention. Mixed …

Imaging And Non-Imaging Approaches For The Diagnosis And Monitoring Of Necrotizing Enterocolitis-What Lies Ahead?, Indrani Bhattacharjee, Catalina Le Cacheux, Eric B. Ortigoza, Jonathan Dillman, Sherwin S. Chan, Alain Cuna

Manuscripts, Articles, Book Chapters and Other Papers

Necrotizing enterocolitis (NEC) remains one of the most serious gastrointestinal emergencies in preterm infants, and imaging plays a central role in diagnosis and clinical management. Historically, evaluation has relied primarily on abdominal radiography, which remains widely available and embedded in established diagnostic frameworks. However, the hallmark radiographic signs of NEC (i.e., pneumatosis intestinalis, portal venous gas, and free air) reflect relatively advanced manifestations of intestinal injury that indicate established mucosal disruption or transmural necrosis. Bowel ultrasound has increasingly complemented radiography by enabling real-time assessment of bowel wall integrity, perfusion, motility, and intra-abdominal fluid, providing physiologic information that may refine clinical …

Scaffolded Reflection And Research Assignment For Sociology 101, Sara Martucci

Open Educational Resources

Dr. Sara Martucci created these assignments as part of a funded project focused on converting more sections of high-enrollment foundational courses to use Open Educational Resources and Pedagogy.

Stress-Activated Pathways Mediate Pfas Effects On Human Placental Syncytiotrophoblast Cells., Keisuke Kozai, Kaela Varberg

Manuscripts, Articles, Book Chapters and Other Papers

Per- and polyfluoroalkyl substances (PFAS) are persistent environmental pollutants associated with placenta-mediated pregnancy complications, including preeclampsia, fetal growth restriction, and preterm birth. The syncytiotrophoblast (STB), which forms the placental barrier at the maternal-fetal interface and is directly exposed to maternal blood, is a primary site of PFAS exposure. Although PFAS induce STB apoptosis, the upstream stress-signaling pathways involved remain poorly defined. Here, we investigated stress-responsive signaling mechanisms mediating PFAS-induced STB cell death. STB differentiated from human trophoblast stem cells were exposed to vehicle or an environmentally relevant mixture of 5 PFAS (perfluorooctanoic acid, perfluorooctanesulfonic acid, perfluorohexane sulfonate, perfluorononanoic acid, and …

Automated Physical Activity Support For Adults And Youth From Low-Income Communities: Single-Arm Pilot Study., Jordan A. Carlson, Frank T. Materia, Mallory Moon, Suryeon Ryu, Cory Yeager, Chelsea Steel, Kacee Shields, Harpreet Singh Gill, Jannette Berkley-Patton, Delwyn Catley

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Mobile health (mHealth) interventions are growing in popularity, but less research has focused on low-income families, particularly interventions integrating wearable devices with automated personalized messages.

OBJECTIVE: We tested a preliminary wearable-integrated mHealth intervention with initial personalization elements among adults and youth from low-income urban communities, focusing on feasibility, acceptability, and preliminary evidence of physical activity behavior.

METHODS: Participants were 83 adults and 31 youth recruited through community health events held in low-income urban communities. Using a single-arm pre-post design, participants were enrolled into a 7-week beta-version mHealth intervention that integrated a Garmin activity monitor with automated text messages. Messages …

Offsetting Carbon With Lemons: Adverse Selection And Certification In The Voluntary Carbon Market, Vahideh Manshadi, Faidra Monachou, Ilan Morgenstern

Cowles Foundation Discussion Papers

To meet voluntary climate targets, firms often complement internal decarbonization efforts by purchasing carbon credits in the voluntary carbon market (VCM), which finance projects that reduce emissions elsewhere. However, these emissions reductions are difficult to verify, and growing evidence of overcrediting has cast doubt on the VCM's potential to genuinely offset emissions. We investigate how the VCM's defining features shape its climate effectiveness. Our model captures three central elements: adverse selection, as high-quality projects that truly reduce emissions are costlier yet difficult to distinguish from low-quality ones; imperfect third-party certification, as projects are screened based on a noisy signal of …

Trends In Non-Profit Cybersecurity: Analyzing Three Years Of Incident Data From The Npcir, Stanley Mierzwa, Joanna Paliszkiewicz, Edyta Skarzyńska

Center for Cybersecurity

This study analyzes cyberattack trends targeting non-profit organizations using longitudinal data collected over a three-year period within the Non-Profit Cybersecurity Incident Repository (NPCIR). Developed through a National Security Agency Center of Academic Excellence in Cyber Defense (NSA CAE-CD) designated center, the NPCIR applies an open-source intelligence (OSINT) methodology to systematically document cybersecurity incidents affecting the global non-profit sector. This study examines attack types, threat actor characteristics, sectoral distribution, and cybersecurity impacts using the Confidentiality–Integrity–Availability (CIA) triad framework. The results indicate that availability-related incidents, particularly ransomware and distributed denial-of-service (DDoS) attacks, constitute the most prevalent threats, while confidentiality breaches remain highly …

Implementation Of A Mixed Precision Iterative Solver On An Amd Apu, Saeyeon Kim, Henrik Evers

Computer Science and Engineering Senior Theses

Solving systems of linear equations is a core operation in high-performance computing and many scientific and engineering applications. One of the most widely used direct methods for solving such systems is LU factorization. Mixed-precision methods accelerate these solvers by using low-precision LU factorization with iterative refinement, improving performance and energy efficiency while preserving high numerical accuracy. AMD Accelerated Processing Units (APUs), which integrate CPU and NPU resources, provide an opportunity to explore this approach on emerging heterogeneous architectures. However, effective NPU utilization remains challenging due to workload partitioning, buffer management, data-movement overhead, and software tooling limitations.

This project implements a …

Decoding Growth Hormone Actions On Human Growth Plate Stem Cells, Shion Orikasa, Noriaki Ono

Faculty, Staff and Student Publications

The epiphyseal growth plate is the key target of growth hormone (GH) therapy. Although growth plate stem cells are well defined in mice, their presence in humans was unclear. Using rare surgical specimens, the study by Chu et al. reveals conserved, GH-responsive stem cells in the human pubertal growth plate.

Sela Officers, Executive Committee, State Representatives, Committees, Sections, Round Tables, And Ad Hoc Committees

The Southeastern Librarian

No abstract provided.

Stories That Stretch Us: Jury Duty As Anti-Rage Bait, Howard Schaap

Faculty Work Comprehensive List

"Today’s naturalism, today’s manipulative authors, are the creators of the maze of social media that lead us toward very specific ends, and it’s tearing at our national fabric."

Posting about ­­­­­­­­the effect of story styles on our thinking from In All Things, an online hub that offers insight into maintaining and faithful and orthodox Reformed Christian worldview while fearlessly engaging in every aspect of contemporary life – until all is made new.

Stories that Stretch Us

Privately Negotiated Withdrawals: How Shareholders Can Shape A Company's Carbon Emissions Reduction, Gabriella M. Chioffi

Duke Environmental Law & Policy Forum

Governed by the U.S. Securities and Exchange Commission's Rule 14a-8, shareholder proposals are a fundamental and longstanding mechanism that investors use to express their opinions and preferences on how a corporation is operating. Over the last decade, there has been a marked shift in the subject matter of the proposals that shareholders are submitting, as concerns relating to the environment have become an increasingly key issue. However, shareholder support for these climate-related proposals reached its highest point in 2021 and has declined slightly in subsequent years. The conditions that made shareholder proposals a successful tool in 2021 have since changed, …

Thermovision 3d, Daniel Louie, Iker Mendiburu Perez, Kieran Greeley

Interdisciplinary Design Senior Theses

This project presents the development of a three-dimensional thermal mapping system designed to identify energy inefficiencies in buildings. By integrating visible-light imaging with thermal sensing, the system generates detailed 3D models that visualize both structural features and heat distribution. Using photogrammetry techniques, overlapping images are processed to reconstruct building geometry, while thermal data is mapped onto the model to highlight areas of potential heat loss such as insulation gaps, windows, and structural joints.

The system combines hardware and software components, including a dual-camera setup and a custom visualization pipeline, to produce both qualitative and quantitative outputs. Users are able to …

Mississippi Institute Of Arts And Letters Honors Faulkner Conference, Rebecca Lauck Cleary

University of Mississippi News

OXFORD, Miss. – The University of Mississippi's Faulkner and Yoknapatawpha Conference will receive a Citation of Merit from the Mississippi Institute of Arts and Letters for its decades of work preserving and expanding William Faulkner's literary legacy.

A Protestant Response To The Pope’S Magnifica Humanitas On Ai, Derek Schuurman

University Faculty Publications and Creative Works

Pope Leo XIV released his first papal encyclical, Magnifica Humanitas, on May 25, a roughly 42,000-word document outlining a Catholic response to recent developments in AI. I had been eagerly anticipating this encyclical and spent much of the release day poring over the text. While there have been other Christian efforts to release statements about AI, this is the first comprehensive statement from the Catholic Church. What follows is a summary of the document, followed by my own response.

Does A Common Threat Unite?: Alliance Formation In East Asia Under Chinese Pressure, Sean G. Mcclellan

Honors Theses

The study explores whether a shared geopolitical threat fosters alliance formation among East Asian nations, focusing on Taiwan, Japan, and South Korea in the context of increasing Chinese influence. Integrating insights from international relations theory and social psychology—particularly Realistic Conflict Theory and the out-group unifying effect—the research evaluates whether perceived Chinese aggression corresponds with increased positive sentiment toward the United States. Utilizing data from the Asian Barometer Survey, linear regression analysis is conducted to assess how perceptions of Chinese and U.S. influence, democratic values, and political affiliation shape public attitudes. Results show that while negative views of Chinese and U.S. …

Extraction Of Key Themes In Online Health Discourse Using Unsupervised Learning And Large Language Models, Miranda G. Scully

Computer Science Senior Theses

Health online discussion boards are a modern platform that allow patients to interact with each other and the healthcare system as a whole, making them valuable sources of information for clinicians seeking to better anticipate treatment experiences and barriers. This study focuses on one such community, r/suboxone, a subreddit where patients using Suboxone share their experiences and ask questions. Our analysis is motivated by previous work that proposes event-based classification systems for such posts which buckets posts from r/suboxone into one or more of five high-level labels (Access Logistics, Co-Occurring Drug Usage, Medication for Opioid Use Disorder Administration, Psychophysical Effects, …

Colonial To Neoliberal Governmentality In Monument Governance: Shifting Positionalities Of The Monument Adjacent Communities In India, Ujal Kumar Mookherjee, Shreyasi Bhattacharya

Socio-Legal Review

Organised monument governance in India began during the colonial rule. The colonial governance enterprise was bureaucratic and worked through stringent laws which often came down heavily on the monument-adjacent communities. The totalising nature of Indian colonial governmentality fractured the local community, disabling their engagement with the State either as civil society, as individuals or as social groups, while on the other hand enabling such engagement through a “community” constructed on religious lines. Colonial continuities in monument governance meant that a roughly similar position continued in the post-colony. On the international plane, however, there has been a discursive shift in valorisation …

Frontal Release Signs And Future Decline In Research Participants With Intact Cognition, Lauren G. Bojarski, Gregory A. Jicha, Elif Pinar Coskun, Frederick A. Schmitt, Linda Van Eldik, Erin L. Abner

Neurology Faculty Publications

Importance Frontal release signs (FRS) are primitive reflexes that regress with brain maturation and reappear in the setting of brain injury or neurodegeneration. Despite their association with dementia, the prognostic utility of this finding in the setting of early cognitive decline and preclinical disease is poorly understood. Objective To evaluate the association of FRS with future cognitive decline in research participants. Design, Setting, and Participants This cohort study examined the presence of FRS (from 2005-2024) among research cohort participants with intact cognition or mild impairment at study baseline. The study used single-center data collection of longitudinal research cohort data through …

2026 Umn Morris Student Leader Awards Announced, Communications And Marketing

Campus News Archive

No abstract provided.

Discovery Of Bmi-Associated Gut Microbiome Signatures In The Awi-Gen 2 Cohort, Meriem Yagoubi

Theses and Dissertations

Obesity is increasing across sub-Saharan Africa amid rapid dietary, environmental, and urbanization transitions, yet the gut microbiome features associated with adiposity in African populations remain under-characterized. This study investigated whether species-level gut microbiome composition is associated with body mass index (BMI) in the AWI-Gen 2 cohort, and whether BMI-associated microbial signals remain detectable after accounting for the dominant geographic structure of the microbiome. Gut microbiome community structure and diversity were characterized across 1,665 participants, and differential abundance analysis was used to identify taxa associated with BMI after controlling for study site. Machine learning models were then trained to assess how …

Chatgpt, Where Should I Go? A Qualitative Exploration Of How Large Language Models Are Experienced As Support For Travel Planning, Mohammad Amin Kuhail, Asbjørn Følstad, Saifeddin Alimamy

All Works

Large language models (LLMs) are increasingly used for travel planning. Yet, little is known about how travellers experience and interact with such language models. This qualitative study explores how users employ LLMs to plan trips, drawing on the hedonic/pragmatic model of user experience to examine functional and affective dimensions. We collected data from 104 participants with prior experience using LLMs for travel advice through open-ended questionnaire responses. Thematic analysis revealed three key insights: (1) users value the pragmatic benefits of LLMs, such as efficiency, clarity, and confidence in decision-making, while also appreciating hedonic qualities, including inspiration, enjoyment, and authenticity; (2) …

Acceptance Of Shared Autonomous Vehicles: Exploring The Attitudes And Perspectives Of Older Adults, Sara Sohaee Urbina

Dissertations and Theses

The fast development of autonomous vehicle systems will create major changes in how people move around. Previous research shows that these technologies can benefit older people who struggle with mobility, safety and access to transportation. Shared Autonomous Vehicles (SAVs) enable older people to achieve self-reliance while obtaining essential services which enhance their quality of living. The successful deployment of SAVs requires users to accept this new technology which they must also be willing to use. This research study investigates which elements affect older adults to adopt SAVs by using an extended Technology Acceptance Model (TAM) framework.

The research design of …

Foundations' Deep, Emily Williams, Morgan Williams

University Honors Theses

Most historic buildings do not survive as they were built, yet preservation frameworks still tend to evaluate them as if they did.

Foundations' Deep begins with a structure located in Helena, Montana 59602, a building that sits uneasily within the categories it has been asked to meet. Built in the early twentieth century, it has persisted through alteration, abandonment, and use. What remains is not a stable artifact but a record of accumulated decisions, some careful and many indifferent, now embedded in the fabric of the building itself.

The thesis grows from this condition and from the limits of the …

Office Discipline Referral Narratives, Context, And Categorization, Deanna M. Bush

Education Dissertations

This two-part qualitative study examined the experiences of students with disabilities (SWD) in the middle school discipline. Phase one was a qualitative document analysis study that examined school discipline for SWD through the lens of Critical Disability Theory (CDT), Multi-Tiered Systems of Support (MTSS), Constructivist Learning Theory, and the Vulnerable Decision Point model (VDP) in a midsize suburban district in Washington state. The study explored alignment of ODR teacher-written narratives with behavioral categories assigned to the ODR at the time of issue to determine variance based on behavior category or student disability status. Phase two a semi-structured interview (shown on …

Why Are Some Children Under 24 Months Still Undernourished In Urban And Peri-Urban Vientiane? A Mixed-Methods Study, Kethmany Ratsavong, Dirk Essink, Pamela J. Wright Phd, Ms, Med, Rn, Cen, Somphou Sayasone, Sengchanh Kounnavong, Jacqueline E. Broerse

Publications

Child undernutrition remains a significant public health challenge in many low and middle-income countries (LMICs), including Lao PDR, where high levels persist even in urban areas with generally available and accessible food. This study aimed to explore factors underlying the persistently high rates of undernutrition among young children in urban (Saysetha) and peri-urban (Pakgneum) districts of the Vientiane Capital in Lao PDR. A cross-sectional survey employed a sequential explanatory mixed-methods approach, combining a structured questionnaire of 333 mother-child pairs for quantitative analysis with semi-structured interviews of 47 caregivers for qualitative insights. The prevalence of malnutrition among children under 24 months …

Climate Deregulation Under Trump 2: Will It Have Any Durable Impact?, John D. Graham

Duke Environmental Law & Policy Forum

Following through on his 2024 campaign pledges, President Donald Trump is dismantling President Biden's aggressive climate policies, including federal regulatory controls on the major sectors of the economy that account for most greenhouse gas emissions in the US. Although it is too early to make a definitive assessment of what Trump will accomplish, I present evidence that Trump is taking a more creative, radical, and legally sophisticated approach to climate deregulation in his second administration than was attempted in his first administration. I evaluate how durable climate deregulation may be. A major weakness in Trump's agenda is the lack of …