Digital Commons Network^™

Purification Of Uranium Tetrafluoride Using Ammonium Bifluoride, Kyle R. Foster, Juliano Schorne-Pinto, Ronald E. Booth, Annabelle Husek, Mina Aziziha, Hunter B. Tisdale, Bernie W.N. Fitzpatrick, Hans Conrad Zur Loye, Markus H.A. Piro, Theodore M. Besmann

Faculty Publications

A method of purification for UF₄ utilizing NH₄HF₂ was investigated to remove oxygen and hydrate impurities from the salt. The original salt exhibited a melting point at 915–920 °C, which corresponds to the eutectic temperature of the UF4-UO2 system, showing clear signs of oxygen contamination. To purify the salt, an air-tight reaction vessel inside an argon glovebox was used to react UF4/NH4HF2 mixtures at elevated temperatures under a continuous flow of inert gas. The process yielded a significantly purer UF4 salt as confirmed via inert gas fusion, X-ray diffraction, differential scanning calorimetry and inductively coupled plasma-optical …

Full Issue, Volume 13, Number 1, Donna J. Peterson, Scott Cummings, Elizabeth Gregory North

Journal of Human Sciences and Extension

No abstract provided.

Politicization Of Antitrust: Part Ii - Politics And Communication By Antitrust Enforcers, Stephen Calkins

Law Faculty Research Publications

Early communications from the new Trump antitrust agencies seem unusually partisan. One can find multiple references to Make America Great Again and ushering in America’s Golden Age. Veteran observers’ instinct is that this is not business as usual. This essay checks that intuition against some facts. In particular, it examines press releases introducing officials and/ or referring to the White House, and the first ten speeches or other publications (as collected on agency websites) for current FTC Chairman Andrew Ferguson, Assistant Attorney General Abigail Slater, and a good number of their predecessors. The conclusion: yes, things are different. The typical …

Common Sources, Perceived Communication Efficacy And Sufficiency Of Cervical Cancer Information, Education And Communication Materials For Women With Hiv/Aids In Rural Kenya, Scholastic Musakali Adeli, Elkanah Orang'o, Violet Naanyu, Ann Mwangi, Peter Itsura, Barry Rosen, Patrick Loehrer

Obstetrics and Gynaecology, East Africa

Introduction: Cervical cancer is the greatest cause of cancer-related death among women in Sub-Saharan Africa, with particularly high incidence and mortality rates in rural regions. In Kenya, Women with HIV/AIDS (WLHA) are at a greater risk of developing cervical cancer though screening rate remains low. Information, education and communication (IEC) materials play a crucial role in raising awareness, promoting screening, and supporting early detection and treatment; however, little is known about the accessibility, content, and perceived effectiveness of these materials from the perspective of WLHA.

Methods: The objective of this study was to determine the common sources, perceived communication efficacy …

What Is The Distribution Of National Historical Parks?, Randall K. Johnson

Faculty Works

In an increasingly polarized nation, which no longer can reach any consensus about what is meant by the term “common good,” it might be wise to extend additional protections to national monuments from executive branch interference. But prior to doing so, the U.S. Congress may want to undertake some additional research work. Such research could build on the existing charge of the National Park Service as well as other interested parties. By doing so, Congress gains insight into whether and how this federal legislature should expand protections for national historical parks.

My article explains, at least in part, how Congress …

Underrepresentation Of Black Students In Advanced World Language Study, Megan E. Golden

Curriculum and Instruction (Ed.D.) Dissertations

Advanced K-12 world language (WL) courses (level three and beyond) suffer from significant underrepresentation of Black students, subsequently impacting Black students’ college and employment opportunities. This study employs a critical constructivist grounded theory framework to analyze quantitative surveys and retrospective qualitative interviews with Black college-aged individuals. The goal of this study is to center the voices of Black students and reveal how they describe their world language courses, how they perceive the impact of those courses, and what factors influence their decision on whether to continue to advanced-level world language study. Survey data found that Black students express limited feelings …

A Comparative Study Of Epibionts And Age Structure Of Two East Coast Populations Of American Horseshoe Crabs, Mark L. Botton Phd, Christina P. Colon, Shiva Jeanbaptist, Kelvin Zaw, Robert E. Loveland

Publications and Research

No abstract provided.

Statesmanship 101: Recommended Readings By Scholars And Diplomats, John Shaw

Institute Publications

The Paul Simon Public Policy Institute asked leading diplomats and scholars this question: If you were teaching a "Statesmanship 101" course to highly motivated undergraduates, what five or so books would you assign them to read? This book answers that question.

Credible Or Constructed? Citation Quality And Undergraduate Student Perceptions Of Generative Ai, William Bowman, Chelsea Carroll, Kaylee Erdos, Suzanne Odom, Wanda Perez

Evans Library Publications

This study aimed to evaluate students' perceptions of the reliability of generative AI tools in academic work, with a particular focus on the accuracy of citations produced by ChatGPT and the frequency of citation hallucinations. The study consisted of two instruments: a feedback survey and an assignment worksheet. The study was completed over the 2024- 2025 academic year and was administered to students enrolled in a for-credit information literacy course offered by the Florida Institute of Technology’s Evans Library. It gathered survey responses from 156 students and received assignment worksheet submissions from 188 students. These submissions yielded 512 AI-generated citations …

The Lawless Workplace, Matthew T. Bodie

Minnesota Journal of Law & Inequality

No abstract provided.

A Tailored Approach To Prep Screening For Awareness And Readiness, Keionda Crumblin Caldwell

Doctor of Nursing Practice Scholarly Projects

Problem Statement: Human immunodeficiency virus (HIV) is a serious health concern in the United States (U.S). Pre-Exposure Prophylaxis (PrEP) is a vital intervention in the prevention of HIV, yet its uptake and adherence are suboptimal due to barriers in identifying individuals who are most at risk and would benefit most from this preventive measure.

Purpose: This evidence-based project aimed to evaluate whether implementing a PrEP readiness tool at a walk-in clinic would identify at-risk adults and adolescents and lead to an increase in referrals for PrEP initiation.

Method: A PrEP Questionnaire from the Department of Wisconsin Public Health was given …

Improving Depression Screening Of Correctional Institution Inmates, Thelma Chidimma Ozigbu

Doctor of Nursing Practice Scholarly Projects

Problem: Depression significantly impacted on the quality of life of incarcerated individuals within correctional facilities, where rates of the disorder far exceed those in the broader community, increasing self-harm and suicide risks.

Purpose: This quality improvement project aimed to improve early identification of depressive symptoms and facilitate timely mental health referrals by implementing the Patient Health Questionnaire (PHQ-9) as a screening tool upon admission.

Method: Using the Iowa Model of Evidence-Based Practice (Iowa Model) as a guiding framework, this project involved training nursing staff to administer the PHQ-9 during initial health assessments. PHQ-9 is a nine-item questionnaire that assesses depression …

Improving Completion Of Diabetes Management Measures In Primary Care, Ashley Tyner Divers

Doctor of Nursing Practice Scholarly Projects

Problem Statement: Adults with type 2 diabetes are at a risk of multiple comorbidities that can be prevented with proper screenings performed as recommended by the American Diabetes Association.

Purpose: Determine if using a checklist on the patient router will improve completion of urine microalbumin, diabetic eye exam, and diabetic foot exam.

Methods: The MA/LPN asked the patient about the last eye exam performed and requested a record from the previous provider if performed within the last year. If the microalbumin was not current, the MA/LPN obtained a urine specimen and placed the order into EPIC. If a diabetic foot …

Enhancing Glycemic Control, Patient Knowledge, And Self-Care Through Structured Diabetes Education, Amanda Suzanne Clark

Doctor of Nursing Practice Scholarly Projects

The rising prevalence of diabetes, particularly in South Carolina, revealed a significant gap in structured diabetes education programs, contributing to poor glycemic control and elevated A1C levels. In response, this project aimed to assess the integration of a comprehensive diabetes education program into standard care, potentially reducing A1C levels while improving patient knowledge and self-care behaviors in adults with diabetes over four months. The study used a pretest-posttest design to evaluate the effectiveness of this innovative intervention by comparing participants' outcomes before and after the program. Purpose: To determine if a comprehensive diabetes education program could reduce Hemoglobin A1C levels …

A Word From The Writing Team (July 2025), Pam Walter, Mfa

A Word From the Writing Team (Newsletter)

This issue includes:

• Publications Spotlight
• Join the Summer Writing Warriors
• Two Ways to Fund Open Access Fees
• Check out the Instructional Design Team’s Podcast, The Learning Curve!

A Historic Context For House Moving: Why Moved Houses Are Eligible For The National Register Of Historic Places, Ian Tomashik

Historic Preservation Final Projects

Structural moving, the process of moving complete buildings to new sites, has shaped American landscapes for over two centuries. Thousands of wood-frame houses were moved with surprising frequency between the mid-nineteenth and mid-twentieth centuries. Yet, moved buildings are “ordinarily” ineligible for listing on the National Register of Historic Places. This project explores this exclusion two parts: an analytical essay that argues for their inclusion for nomination and a historic context survey that explains the prevalence of house moving. The essay first explains the National Register’s rationale for questioning the historic significance of moved buildings. It also examines why large-scale house …

Effect Of The Cervical Lesion Severity On Procedural And Clinical Outcomes After Endovascular Treatment Of Acute Tandem Lesions: A Multicenter Study, Milagros Galecio-Castillo, Mudassir Farooqui, Ameer E Hassan, Mouhammad A Jumaa, Afshin A Divani, Marc Ribo, Michael Abraham, Nils H Petersen, Johanna T Fifi, Waldo R Guerrero, Amer M Malik, Thanh N Nguyen, Sunil A Sheth, Albert J Yoo, Guillermo Linares, Nazli Janjua, Michael Dubinsky, Darko Quispe-Orozco, Wondwossen Tekle, Syed F Zaidi, Sara Y Sabbagh, Marta Olive-Gadea, Tiffany Barkley, Reade A De Leacy, Mohamad Abdalkader, Sergio Salazar-Marioni, Jazba Soomro, Weston Gordon, Charoskhon Turabova, Leonardo Cruz-Criollo, Piyush Kalakoti, Maxim Mokin, Dileep R Yavagal, Tudor G Jovin, Santiago Ortega-Gutierrez

Faculty, Staff and Student Publications

Background: Tandem lesions pose unique challenges in the endovascular treatment of acute ischemic stroke. We aimed to compare the clinical and procedural outcomes of patients with tandem lesions and extracranial internal carotid artery (ICA) complete occlusion versus those with moderate to severe stenosis.

Methods: This is a subanalysis of a multicenter cohort of patients with acute anterior circulation tandem lesions treated with intracranial mechanical thrombectomy and carotid artery stenting, between January 2015 and December 2020. The patients were categorized into 2 groups: extracranial ICA stenosis >70% to 99% and complete occlusion. Outcomes included successful and excellent recanalization, functional independence, symptomatic …

Male Victims, Experiences With Seeking Help From Domestic Violence Agencies Over Time And Across Western English-Speaking Countries, Denise A. Hines, Alexandra Lysova, Emily M. Douglas

Department of Social Work and Child Advocacy Faculty Scholarship and Creative Works

Background: Male victims of intimate partner violence (IPV) represent a substantial but overlooked portion of IPV victims. Access to domestic violence (DV) services remains a challenge, particularly when agencies primarily serve female victims. This study examines male IPV victims’ experiences with mainstream and specialized DV agencies across four English-speaking regions: the United States, Canada, the United Kingdom/Ireland, and Australia/New Zealand. Methods: Two samples of male IPV victims from Western English-speaking countries/regions were recruited: one consisting of self-identified male IPV victims (n = 594) and the other of male IPV victims from crowdsourcing sample (n = 1380). Participants completed an anonymous …

Foodlmm: A Versatile Food Assistant Using Large Multi-Modal Model, Yuehao Yin, Huiyan Qi, Bin Zhu, Jingjing Chen, Yu-Gang Jiang, Chong-Wah Ngo

Research Collection School Of Computing and Information Systems

Large Multi-modal Models (LMMs) have made impressive progress in many vision-language tasks. Nevertheless, the performance of general LMMs in specific domains is still far from satisfactory. This paper proposes FoodLMM, a versatile food assistant based on LMMs with various capabilities, including food recognition, ingredient recognition, recipe generation, nutrition estimation, food segmentation and multi-round conversation. To facilitate FoodLMM to deal with tasks beyond pure text output, we introduce a series of novel task-specific tokens and heads, enabling the model to predict food nutritional values and multiple segmentation masks. We adopt a two-stage training strategy. In the first stage, we utilize multiple …

Sanitizable Cross-Domain Access Control With Policy-Driven Dynamic Authorization, Jianfei Sun, Guowen Xu, Hongwei Li, Tianwei Zhang, Cong Wu, Xuehuan Yang, Robert H. Deng

Research Collection School Of Computing and Information Systems

The increasing demand for secure and efficient data sharing has underscored the importance of developing robust cryptographic schemes. However, many existing endeavors have overlooked the following critical issues: (1) unauthorized access resulting from malicious information leakage by senders; (2) absence of constraints on write and read permissions for participants; (3) and inflexibility of strategies to dynamically designate ciphertexts to multiple recipients. In this paper, we present SCPA, a cross-domain access control scheme imbued with sanitization features and propelled by policy-driven dynamic authorization, tailored for cloud-based data sharing. This scheme not only facilitates access controls, including regulations for no-read and no-write …

Understanding The Bad Development Practices Of Android Custom Permissions In The Wild, Xiaohan Zhang, Zhiyuan Yu, Xinghua Li, Cen Zhang, Cong Sun, Ning Zhang, Robert H. Deng

Research Collection School Of Computing and Information Systems

Android system provides application developers with the ability to define custom permissions, which serve to moderate the sharing of resources and interactions with other applications. However, poor development practices of developers can render the permission mechanism ineffective, weakening the system protection. This paper presents a comprehensive examination of the problematic practices surrounding custom permissions employed by developers, referred to as Bad Practices of Custom Permissions (BPCP issues). To accomplish this, we conducted an empirical study and identified nine common BPCP issue patterns that can lead to various adverse consequences, such as installation failures, crashes, or even component hijacking. To automatically …

Misinformation Regulations: Early Evidence On Corporate Social Media Strategy, Richard M. Crowley, Yun Lou, Samuel T. Tan, Liandong Zhang

Research Collection School Of Accountancy

Against the backdrop of an increasing threat of misinformation on social media, several countries have enacted regulations to curb the spread of misinformation. This study examines how corporate social media strategy responds to misinformation regulations. Using a large cross-country dataset of corporate tweets and a stacked regression analysis, we show that misinformation regulations lead to less corporate social media disclosure. This result suggests that by deterring misinformation, these regulations reduce firms’ need to use social media to counteract its adverse effects. Additional analyses show that the effect is more pronounced among countries with higher social media usage and countries with …

Economic Consequences Of Public Pension Accounting Regulation Changes: Evidence From Housing Markets And Local Economies, Grace Haoqing Fan

Research Collection School Of Accountancy

I examine whether, and through which channels, government pension accounting regulations affect local housing markets and economies. Using both a contiguous border-county approach across multiple states and a single-state study in California, I find that regions exposed to more severe state-level pension underfunding experience lower housing market growth after the introduction of Government Accounting Standards Board (GASB) regulations 67 and 68, which significantly enhance the transparency of public pension underfunding. The effect is more pronounced in states heavily impacted by the new regulations and in counties more reliant on state funding. Further analyses suggest that the observed effect is driven …

The B2biers System: A Content-Based Perspective On Maximizing Influence And Subscription In Social Networks, Konstantinos Theocharidis, Hady Wirawan Lauw

Research Collection School Of Computing and Information Systems

The popular problem of Influence Maximization (IM) asks for the k users who can maximize the influence of a fixed post in a social network. In contrast, the problem of Content- Aware Influence Maximization (CAIM) asks for the k features to form a viral tunable post in a social network starting its diffusion from a fixed set of initial adopters. CAIM paves the way for a number of novel problems to be studied that altogether can lead to the development of a system that would be valuable for advertisers who manage social network pages. This holds since features (brands) in …

Prompttutor: Effects Of An Llm-Based Chatbot On Learning Outcomes And Motivation In Flipped Classrooms, Yuhao Zhang, Eng Lieh Ouh, Chong Jee Adam Ho, Siaw Ling Lo, Kar Way Tan, Feng Lin

Research Collection School Of Computing and Information Systems

This study explores the integration of a Large Language Model (LLM) based chatbot, PromptTutor, into flipped classrooms (FC) for undergraduate Computer Science (CS) education. PromptTutor is designed to provide personalized, immediate feedback to support student learning in FC by incorporating reflective learning and scaffolding strategies. The traditional FC typically lacks this immediate feedback during the pre-class learning phase, risking decreased student motivation according to existing literature. This study examines if students improve in learning outcomes and motivation after using PromptTutor. Through a controlled crossover experiment with 50 students, the study demonstrates statistically significant improvements in students' quiz performance and motivation …

Unified Neural Backdoor Removal With Only Few Clean Samples Through Unlearning And Relearning, Nay Myat Min, Long H. Pham, Jun Sun

Research Collection School Of Computing and Information Systems

Deep neural networks have achieved remarkable success across various applications; however, their vulnerability to backdoor attacks poses severe security risks—especially in situations where only a limited set of clean samples is available for defense. In this work, we address this critical challenge by proposing ULRL (UnLearn and ReLearn for backdoor removal), a novel two-phase approach for comprehensive backdoor removal. Our method first employs an unlearning phase, in which the network’s loss is intentionally maximized on a small clean dataset to expose neurons that are excessively sensitive to backdoor triggers. Subsequently, in the relearning phase, these suspicious neurons are recalibrated using …

Efficient Prompt Tuning For Hierarchical Ingredient Recognition, Yinxuan Gui, Bin Zhu, Jingjing Chen, Chong-Wah Ngo

Research Collection School Of Computing and Information Systems

Fine-grained ingredient recognition presents a significant challenge due to the diverse appearances of ingredients, resulting from different cutting and cooking methods. While existing approaches have shown promising results, they still require extensive training costs and focus solely on fine-grained ingredient recognition. In this paper, we address these limitations by introducing an efficient prompt-tuning framework that adapts pretrained visual-language models (VLMs), such as CLIP, to the ingredient recognition task without requiring full model finetuning. Additionally, we introduce three-level ingredient hierarchies to enhance both training performance and evaluation robustness. Specifically, we propose a hierarchical ingredient recognition task, designed to evaluate model performance …

Unveiling Knowledge Boundary Of Large Language Models For Trustworthy Information Access, Yang Deng, Moxin Li, Liang Pang, Wenxuan Zhang, Wai Lam

Research Collection School Of Computing and Information Systems

Large Language Models (LLMs) have emerged as powerful tools for generating content and facilitating information seeking across diverse domains. While their integration into conversational systems opens new avenues for interactive information-seeking experiences, their effectiveness is constrained by their knowledge boundaries—the limits of what they know and their ability to provide reliable, truthful, and contextually appropriate information. Understanding these boundaries is essential for maximizing the utility of LLMs for real-time information seeking while ensuring their reliability and trustworthiness. In this tutorial, we will explore the taxonomy of knowledge boundary in LLMs, addressing their handling of uncertainty, response calibration, and mitigation of …

Collaboration With Dynamic Open Ad Hoc Team Via Team State Modelling, Jing Sun, Cong Zhang, Zhiguang Cao

Research Collection School Of Computing and Information Systems

Open ad hoc teamwork presents the challenging problem of designing an autonomous agent that can rapidly adapt to collaborate with teammates without prior coordination in an open environment. Existing methods primarily rely on fixed, predefined teammate types, overlooking the fact that teammates may change dynamically. To address this limitation, we propose a novel reinforcement learning approach, the Open Online Teammate Adaptation Framework (Open-OTAF), which enables a controlled agent to collaborate with dynamic teammates in open ad hoc environments. To achieve this, the controlled agent employs a dual teamwork situation inference model to capture the current teamwork state, facilitating decision-making under …

The Relationships Between Higher Education Institutions And High School Sports Associations: Maximizing Symbiotic Relationships For Teaching Sports Communication, Joseph R. Blaney Ph.D., Livvi Anderson, Evan R. Craig

Faculty Publications - Communications

In this exploratory study of High School Sports Associations (HSSAs) and theirrelationships with sports communication programs at Higher Education Institutions (HEIs), investigators discovered that the associations very broadly see the benefit of establishing mutually beneficial relationships. In its most helpful form, the relationships create Experiential Learning (EL) opportunities which give college students an advantage in a competitive industry while simultaneously helping associations staC the myriad and growing programming events and content platforms. The varying roles available to students, the process behind developing the relationships, and the barriers to creating such relationships are also explored.