Digital Commons Network^™

Synthetic Approaches Towards Bn2tcma For The Modeling Of Oxalate-Degrading Enzymes, Olivier Servius

Theses & ETDs

Oxalate is a naturally occurring compound that can be toxic to humans at high concentrations as humans lack the oxalate degrading enzymes found in plants, fungi and bacteria. Key enzymes involved in oxalate metabolism are oxalate oxidase and oxalate decarboxylase, both of which are manganese based metalloenzymes. Due to limited research, much is unknown regarding their mechanism of action ,with multiple proposals reported, but no unified consensus. Synthetic model complexes are commonly used to probe the function of metalloenzymes by replicating structural and electronic features in simplified systems. In biomimicry, 1,4,7,-triazacyclononane (TACN) has attracted attention for its N3O donor set …

Power Of 10 Activities – Scale Of Space, Larry Browning, Kay Cutler

Astronomy Activities

Long Description (About):  Have you ever wondered about how to scale size in space? Or think about the distance between planets and how to explain that to learners? The distances are so immense, compared to our everyday experience, an easy way to express and discuss these large distances is needed. It is also helpful to compare distances to what is familiar, especially for emerging learners. A series of movies does do this, but the challenge is to appreciate, at some level, how the zooming out (or in) is happening. The Power of 10 concept can be helpful to understand and …

Designing Ai For Wellbeing, Emily Corrigan-Kavanagh

DRS Summer Meetings

No abstract provided.

Design Knowledge, Paul Hekkert

DRS Summer Meetings

No abstract provided.

Enhancing Hope In Mathematics From An East African Perspective, Howard Omukami

Institute for Educational Development, East Africa

No abstract provided.

Reconsidering The Champion Teacher In Assessment-Oriented Development Education Systems, Nyagwegwe Wango, Jane Rarieya, Fredrick Mtenzi, Wachira Nicholas

Institute for Educational Development, East Africa

Purpose: This study investigates the impact of teacher assessment practices in Tanzania, Kenya, and Uganda on the cultivation of “champion teachers” who can provide competency-based, inclusive, and gender-responsive education.

Methodology: A mixed-methods approach was employed, integrating document analysis, interviews, and surveys with teacher educators and student teachers from the three countries.

Findings: Even though policy changes have encouraged new ways of teaching, teacher education still mostly focuses on summative assessments and following the rules. This method makes it harder for teachers to become more reflective and adaptable, which slows progress toward better, more inclusive education.

Unique Contribution to Theory, …

Factors Associated With Stunting And Underweight Indices Among Children 0–3 Years In Nairobi, Kenya: A Cross-Sectional Study, Eunice Njoroge, Kevinson Mwangi, Esther Chongwo, Martha Kaniala, Kevin Wekesa, Isaac Lihanda, Vibian Angweny, Rachel Odhiambo, Margaret Kabue, Japhet Adina, Amina Abubakar

Institute for Human Development, East Africa

Background:Childundernutritionremainsoneofthemostpressingglobalpublic health challenges, particularly in low and middle-income countries (LMICs). Most studies focus broadly on children under five, potentially overlooking the unique vulnerabilities a ecting children in the first 1,000 days of life. This study investigated potential factors associated with stunting and underweight malnutritional presentation among children aged 0–3 years in Nairobi City County, Kenya.

Methods: We conducted a cross-sectional study of 2903 caregiver-child dyads living in Nairobi City County to assess stunting [Height-for-Age Z-scores (HAZ)] and underweight [Weight-for-Age Z-scores (WAZ)] using the World Health Organisation (WHO) growth standards among 0–3-year-olds. Child, caregiver, and householdcharacteristicswereincludedinthelinearmixede ects regression models …

Editing The Editor, Michael Saba

Journal of the Macomb Dental Society

This article features a monthly column from the Macomb Dental Society's editor, Dr. Michael Saba.

Ada Lobby Day 2026

Bulletin of the Ninth District Dental Association

Dr. Renuka Bijoor recounts her experience representing the Ninth District as part of NYSDA’s delegation for Lobby Day 2026. She expresses her gratitude for the opportunity to "advocate for ourselves, our profession, our team members and our patients" and makes particular note of the engaged and excited students that attended.

2026 Lobby day legislation and issues included:

• ERISA and the Improving Dental Administration Act, H.R. 7931
• Student Loans and Postgraduate Educational Debt, H.R. 2028/S.942
• Protect and Restore the Federal Oral Health Infrastructure

The article discusses to whom and how each topic was presented and concludes with one-page fliers for each.

Reformational Thought In Three Universities, Derek Schuurman

University Faculty Publications and Creative Works

My grandparents, together with other post-WWII Dutch immigrants animated by Kuyperian thinking, immediately began building Christian schools in their new land of Canada. Eventually, they also built Christian universities. Redeemer College was established in 1981, just down the road from the Christian day schools my grandparents helped build.

Investigating Speech-Language Pathologists’ Perceptions On Bilingual/Multilingual Aac Intervention And Quality Of Care, Lillian D. Griffith

Communication Disorders and Occupational Therapy Undergraduate Honors Theses

This study examined U.S.-based speech-language pathologists' (SLPs) perceptions of bilingual/multilingual AAC service provision and the barriers SLPs encounter to determine if SLP beliefs align with practices. An anonymous survey was distributed to 307 ASHA-certified SLPs, resulting in 21 completed responses. The survey consisted of questions that gathered information on participant demographics, caseload, perceptions/beliefs, and practices, with optional open-ended questions for additional context. SLPs in the participant sample strongly believed that AAC intervention should occur in all the languages spoken by the client. Despite this belief, they struggled to implement it due to barriers. Key barriers identified included SLP language limitations, …

Aspirin And Preterm Birth Among Pregnant People With Increased Heat Exposure: Secondary Analysis Of A Randomized Clinical Trial, Gabriella Meltzer, Luke Duttweiler, Sarah Saleem, Kartik Shankar, Manolo Mazariegos, Antoinette Tshefu, Jackie Patterson, Elwyn Chomba, Waldemar Carlo, Shivaprasad Goudar, Richard Derman, Archana Patel, Patricia Hibberd, Edward Liechty, Fabian Essamai, Edwin Asturias, Denise Babineau, Janet Moore, Cascade Tuholske, Andrew Zimmer, Brent Coull, Elizabeth Mcclure, Robert Goldenberg, Nancy Krebs, Matthew Hoffman, Blair Wylie

Global Health Articles

IMPORTANCE: Scalable interventions are urgently needed to mitigate the adverse effects of heat on pregnancy and newborn health.

OBJECTIVE: To evaluate whether low-dose aspirin modifies the association between heat exposure and preterm birth.

DESIGN, SETTING, AND PARTICIPANTS: This secondary analysis of the Global Network for Women's and Children's Health Research Aspirin Supplementation for Pregnancy Indicated Risk Reduction in Nulliparas (ASPIRIN) randomized, double-blinded, placebo-controlled clinical trial was conducted from March 2016 to June 2018. Statistical analyses were performed from June 2024 to June 2025. The study settings included the Democratic Republic of Congo, Zambia, Kenya, Guatemala, Pakistan, and Belagavi and Nagpur, …

2-D Materials: The Synthesis Of Solid-State Fuel From Metastable Diboride, Alma Kolakji

Chemistry

2-D materials are widely recognized for their anisotropic mechanical and electrical properties, surpassing their bulk counterparts. These superior characteristics of 2-D materials arise from their high surface-to-volume ratio and strong in-plane bonds. Current routes to exfoliate bulk material into 2-D nanosheets rely on weak interlayer Van der Waals forces and traditional top-down techniques. These methods are dominated by physical “force,” such as liquid-phase and mechanical exfoliation. The downside is that they apply only to weakly bonded VdW materials, limiting the variety of possible 2-D materials. To expand the variety, researchers have studied the synthesis of borophene (boron sheets). Borophene is …

Sectoral Differences In The Role Of Aggregate Corporate Earnings In Predicting Gdp, Aleeza Reich

Business/Business Administration

This paper provides empirical evidence on aggregate corporate earnings growth as a predictor of gross domestic product (GDP) growth at the sectoral level in the US. We explore how sectoral earnings predict sectoral GDP with and without controls to examine more accurate methods of GDP forecasting. Utilizing panel data for fifteen sectors from 2005 to 2024, we examine this predictive relation on a quarterly basis. Our results show that sectoral earnings can predict sector GDP in seven of the fifteen sectors either contemporaneously or with a lag. These results can aid policymakers as well as investors in making more accurate, …

Click, Share, Believe, And Share Again: The Role Fake News Plays On Social Media, Lillian E. Sage

Journalism Undergraduate Honors Theses

This study examines the prevalence and plight of misinformation referred to as fake news found on social media. The study paid particular attention to, investigating which demographic groups are most likely to believe and disseminate fake news, as well as, understanding the kind of effect such exposure may have on individuals. To investigate these issues, a survey was developed using Qualtrics and distributed to members of the University of Arkansas community via email and group messaging platforms. To broaden the sample, the survey was also shared through the researcher’s social media networks, resulting in a more diverse group of …

Fraternities, Athletics, And Masculinity: Exploring Male Perspectives On Sexual Violence And Coercion Prevention In University Settings, Gabrielle A. Phillips

Journalism Undergraduate Honors Theses

This thesis presents a timely and relevant qualitative study addressing a
notable gap in sexual violence prevention research: male students’
perspectives. Grounded in Social Learning Theory, the study effectively
situates its inquiry within a robust theoretical framework while focusing on an
often underexplored population, including student-athletes, fraternity members,
and unaffiliated men.
A key strength of the research lies in its use of focus groups, which allows for
nuanced in-depth insights into how male students interpret and discuss sexual
coercion among peers. The findings are particularly compelling in highlighting
the disconnect between conceptual understanding and practical application of
prevention strategies. The …

A Qualitative Study Of Journalism Course Syllabi In Relation To The First Amendment, Elizabeth L. Bunnell

Journalism Undergraduate Honors Theses

The goal of this research is to gain more insight into collegiate journalism course syllabi and the First Amendment. The First Amendment is a foundational aspect for a career in journalism, and one way to learn how college journalism students are interacting with the First Amendment is to conduct a qualitative analysis of the syllabi. A syllabus is the contract between professor and student for the course; therefore, it should contain the most important information relating to the course. 47 syllabi were collected from the School of Journalism and Strategic Media from the Spring 2025 semester. After reading through each …

Stories That Persuade: The Impact Of Pleasure-Based And Pressure-Based Prosocial Appeals On Charitable Support For Sexual And Reproductive Health Nonprofits, Tyler Outhouse

Journalism Undergraduate Honors Theses

This study investigates how different narrative framing strategies, and corresponding sources of motivation, influence donors’ willingness to support a sexual and reproductive health nonprofit. A nationally representative sample (N = 205) completed an experiment embedded in an online survey. Participants were randomly assigned to read either a pleasure-based or pressure-based story about reproductive healthcare. Participants then reported their reactions, motivations, and willingness to support the nonprofit. Results indicated no significant difference in charitable support intentions across the two conditions, instead finding that partisan identification and value alignment were the key predictors of charitable support. The results also indicated that …

The Role Of Occupational Therapy In Community-Based Nonprofit Durable Medical Equipment Programs, Coral Mcfern

Capstone Projects

This 14 week doctoral capstone project focused on improving education within a nonprofit durable medical equipment program, Renew Mobility, to enhance safety and independence for individuals using mobility devices. This work is relevant to occupational therapy as it applies OT principles of client-centered care, health literacy, and adaptive equipment training in a community-based setting. A key gap in the literature was identified as the lack of structured educational resources, leading to inconsistent training and reliance on verbal instructions.

The objective of this project was to develop accessible educational materials to support proper equipment use and safety. This resulted in a …

Primitive Pythagorean Triples In Lean And Reduction Modulo Odd Prime Powers, Luke Biddle

Mathematical Sciences Undergraduate Honors Theses

Primitive Pythagorean triples (PPTs) are (a,b,c) triples that satisfy the Pythagorean theorem and share no other common factors outside of 1. This project examines these PPTs reduction modulo odd prime powers by combining proof writing and number-theoretical analysis with the process of verification and formalization in the Lean proof coding language. Using the parameterization of PPTs generated by using the unit circle with additional conditions, we investigate how these triples behave modulo  for odd primes , with emphasis on counting the number of elements in the set of PPTs (a,b,c) modulo pⁿ . By using cases based on initial …

Multi-City Travel Routing Tool: Reducing Travel Costs And Time Spent Planning Using Apis, Trey R. Merreighn

Industrial Engineering Undergraduate Honors Theses

Travel planning is a time-consuming and ever-changing problem that can diminish the travel experience and greatly increase expenditure, if not done correctly. It is important to have an easy travel planning experience so you can enjoy the travel experience more and not waste time where it is not needed. This thesis aims to minimize the costs and time spent on travel planning using APIs and simple optimization models, creating a travel planning tool. This travel planning tool was developed in Java with the main API being Amadeus, this was combined with a greedy best-permutation heuristic to create the main route …

Reflective Analysis Of Industrial Engineering Leadership Skills Applied In Being A Capstone Team Leader, Sarah Nesmith

Industrial Engineering Undergraduate Honors Theses

This paper presents a reflective analysis of leadership skills that I, Sarah Nesmith, have acquired and applied as an honors student serving as a capstone team leader within the Industrial Engineering program at the University of Arkansas. My senior capstone project is in partnership with Walmart’s Transportation and Optimization Department and focuses on identifying the root and contributing causes of empty miles (miles driven without freight on a truck) and exploring backhaul opportunities. The ultimate goal is the development of a tool or method that can identify these opportunities to save money while maintaining service level. As the appointed team …

Evaluation Of The Weed Control Efficacy And Potential Economic Returns Of An Autonomous Weeder In Vegetable Production Systems, Claire Plassmeyer

Graduate Theses and Dissertations

Vegetable production requires intensive weed management. Conventional producers rely on herbicide applications to manage weeds effectively at low costs; however, growers are under pressure to minimize chemical use due to environmental concerns and increased incidences of herbicide resistance. Non-conventional systems, including organic and sustainably focused small-scale production, rely primarily on cultural practices and physical weed control methods, which are labor-intensive and costly due to limited labor availability and rising wages. These concerns have prompted the development of autonomous weeding devices, such as unmanned ground vehicles (UGVs) equipped with navigation sensors and implements to provide repeated, high-precision weed control. Compact devices …

"Pockets Of Existence" The Lighting Design For "Silent Sky", Faith Noel Spencer

Graduate Theses and Dissertations

This thesis will explore how lighting can express wonder, isolation, and discovery through the lens of the play Silent Sky by Lauren Gunderson. Produced at the University of Arkansas in February 2025, my design utilized shifts in color, intensity, and movement to mirror Henrietta Levitt’s pursuit of understanding within both science and society. This design sought to balance the expansiveness of the never ending universe with the intimacy of humanity, using lighting to bridge the vastness with isolation. Challenges in this production included creating a sense of infinite space within the confines of a proscenium theatre, having continuity across multiple …

Turbulent Plenum Jet-Crossflow Validation Via Subgrid Scale Model Variation And Upstream Forcing Under Dynamic Hybrid Rans-Les, Cole W. Mccallum

Mechanical Engineering Undergraduate Honors Theses

In modern gas turbine design, film cooling has become ubiquitous as a method for limiting heat transfer between high temperature gases post-combustion and the surface of downstream blades. This paper validates the use of various computational fluid dynamics techniques in recreating an experiment measuring adiabatic effectiveness over a surface downstream of a compound-angle N2 plenum jet incident on a turbulent-air boundary layer [1]. To do this, both RANS and Dynamic Hybrid RANS-LES (DHRL) methods are implemented and compared to previous research [2]. The latter method is then modified through implementation of a different subgrid scale (SGS) model and through addition …

Pilot Age And Accident Rates In General Aviation: Analysis And Recommendations, Jackson E. Jolley

Mechanical Engineering Undergraduate Honors Theses

General aviation accounts for approximately 94% of all civil aviation accidents in the United States, highlighting the need to examine how pilot characteristics and operational factors influence accident risk. With the Federal Aviation Administration (FAA) projecting continued growth in the general aviation pilot population, this study examines the relationship between pilot age, flight experience, and accident risk to inform training and safety interventions. Using the National Transportation Safety Board (NTSB) accident records from 2008–2024, along with FAA pilot registration data, we analyze age-related trends in accident likelihood, risk, and phase-of-flight distributions in general aviation operations.

Results show an approximately exponential …

Tribological Evaluation Of A Graphite Coating Using A Custom Miniature Conveyor, Shae Threlfall

Mechanical Engineering Undergraduate Honors Theses

Reducing friction in conveyor systems has significant economic and environmental implications, as a substantial portion of energy losses originates at the belt-bed interface. This thesis outlines the design, construction, and validation of a miniature conveyor tribological test system. Unlike conventional tribometers, which impose concentrated point contacts, the miniature conveyor replicates the distributed load consistent with industrial conveyor systems. It can measure real-time mechanical responses of steel samples coated in a low friction coating.

The mini conveyor was validated by evaluating three materials: uncoated mild steel, PDA/graphite coated steel, and Polytetrafluoroethylene (PTFE). Electrical power, temperature, sound, and acceleration were recorded. Electrical …

Enhancing Control Charting Schemes And Exploring New Assessment Metrics To Advance Quality Control And Cyber-Attack Detection In Manufacturing, Ahmad Al Majali

Dissertations

The increasing integration of digital technologies and industrial control systems in modern manufacturing has introduced new cybersecurity vulnerabilities within cyber–physical production environments. Malicious actors can exploit these vulnerabilities to induce subtle process deviations that degrade product quality while remaining undetected by conventional statistical monitoring tools. Such attacks can be deliberately engineered to manipulate process behavior through transient shifts that vary in magnitude, duration, and frequency. Despite extensive research on transient shifts caused by assignable causes in Statistical Process Control (SPC), limited attention has been given to intelligently designed cyber–physical attacks that exploit the structural characteristics and limitations of control charting …

Discerning If Triops Have Personality, Gwen Therrien

Theses & ETDs

Triops, or tadpole shrimp, are small, freshwater invertebrates. They are the apex predator of their habitat, temporary pools of freshwater. They eat plant matter, worms, mosquito larvae and their own eggs. Their eggs go through anhydrobiosis; meaning they can survive without water for extended periods of time. There have been no previous studies specifically on Triops’ personality. Thus this raises the question if individuals demonstrate different personalities from each other. Boldness trials were conducted on 13 specimens that were on a diet of herbivore pellets and carrots. Each set of trials were repeated 1-11 times depending on how long the …

Bernoulli’S Principle And Newton’S Third Law: The Correlation To Aviation And Impact On Flight, Camilo Renteria

Theses & ETDs

No abstract provided.