Digital Commons Network^™

Towards Accountability: A Primer On The Space Debris Problem And An Overview Of The Legal Issues Surrounding It, William Schonberg

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Since 1957, the near-Earth population of trackable space objects has grown in number to over 36,000. Of these 36,000+ trackable objects now in low Earth orbit, just a few thousand are working spacecraft. The rest are Earth-orbiting objects which are no longer operational and are considered to be space junk. Because this junk can no longer receive maneuvering commands from its Earth-based owners, the survivability of other spacecraft traveling through or operating in Earth orbit can be jeopardized by the impacts of any number of pieces of this space junk, whose origins can usually be traced back to defunct satellites. …

Uni Schedule Of Classes: Policies And Procedures, Summer 2025, University Of Northern Iowa

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the University of Northern Iowa.

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 …

The Development Of Advanced Statistical Methods For Complex Big Data, Kaiwen Wang

Statistical Science Theses and Dissertations

This dissertation consists of three chapters: 1) Comparative Analysis of Dimension Reduction Methods for Cytometry by Time-of-Flight Data, 2) Integrative Single-Cell Analysis Using Regularized Multitasking Graphical Attention Model with CySCI, and 3) BiGER for Bayesian Rank Aggregation in Genomics with Extended Ranking Schemes.

While experimental and informatic techniques around single cell sequencing (scRNA-seq) are advanced, research around mass cytometry (CyTOF) data analysis has severely lagged behind. This calls for the evaluation and development of computational methods specific for CyTOF data. We first benchmarked dimension reduction methods for CyTOF in Chapter 1. Then, we developed an integrative method for multimodal single-cell …

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 …

Redundant Functions Of Mir156-Targeted Squamosa Promoter Binding Protein-Like Transcription Factors In Promoting Cauline Leaf Identity, Darren Manuela, Liren Du, Qi Zhang, Yifei Liao, Tieqiang Hu, Jim P. Fouracre, Mingli Xu

Faculty Publications

No abstract provided.

Understanding Georgia Child Welfare Case Manager’S Perspective, Practicum Experience, And Retention, Takierra Dawson

Walden Dissertations and Doctoral Studies

Child welfare workers have high turnover rates and low retention rates. While there is well-documented research on reasons for turnover, no research was found on how a case manager's practicum experience impacts turnover rates. The purpose of this qualitative study was to explore child welfare case managers' perspectives on retention and to understand how their practicum and internship experiences influence retention. The theories that ground this research include systems theory by Bertalanffy and social constructivism by Vygotsky. The two research questions for this generic qualitative study were: What are the experiences of child welfare case managers during their internship and …

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.

Oxytocin's Role In Feelings Of Social Connection And Loneliness, Cecile Sunahara

Psychology Theses and Dissertations

This study investigated the role of oxytocin (OT) in feelings of social connectedness. Healthy male and female participants (N=138) were exposed to a task designed to elicit feelings of social connectedness to close others (i.e., the Social Connection Task); participants’ salivary OT levels were measured in response to this task. Using ecological momentary assessment (EMA), data were collected on participants’ feelings of social connectedness in daily life. Results from the current study showed that, among male participants, OT levels decreased in response to the Social Connection Task, while no change in OT was observed among female participants. OT reactivity to …

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 …

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 …

Crystal Growth, Thermal, Optical, Magnetic And Electrochemical Properties Of Mo2Ta2O11, Md Abdullah Al Muhit, Alevtina A. Maksimova, Sean C. Wechsler, Habiba Binte Kashem, Gopabandhu Panigrahi, Gregory Morrison, Morgan Stefik, Hans Conrad Zur Loye

Faculty Publications

Single crystals of the transition metal oxide Mo2Ta2O11 were grown for the first time using molten flux synthesis. The compound crystalizes in the trigonal space group R 3‾m (no. 166) with lattice parameters a = b = 5.6267(1) Å and c = 25.1424(6) Å and a unit cell volume of 689.36(3) ų. The structure of Mo2Ta2O11 is composed of alternating layers of TaO6 octahedra and MoO4 tetrahedra connected via corner-sharing. CaH2 was used to achieve a partial low temperature reduction of Mo2Ta2O11. The electrochemical lithiation of polycrystalline Mo2Ta2O11 was also investigated for the first time. Mo2Ta2O11 underwent a …

The Bridwell Quill, Issues 83–85: Ora Et Labora, Anthony Elia

Bridwell Library Publications

No abstract provided.

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!

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 …

Buy-Now-Pay-Later And Alternative-Financial-Service Use Among Low-Wage Workers, Somalis Chy, Haotian Zheng, Stephen Roll, Mathieu Despard

Center for Social Development Research

Buy-now-pay-later (BNPL) services offer consumers the option of short-term interest-free loans for retail purchases, but the rapid growth of such services has raised concerns about indebtedness and impacts on household financial security. This brief draws upon data from the nationally representative Workforce Economic Inclusion and Mobility survey to examine the use of BNPL offerings, the demographics of users, the use of alternative credit products, and differences in BNPL product use by employment status.

Leveraging Latency: How The Weak Compel The Strong With Nuclear Technology. By Tristan A. Volpe. Oxford: Oxford University Press, 2023., Jae Eun Han, Phd Student

Journal of Strategic Security

No abstract provided.

To Insure Domestic Tranquility And Provide For The Common Defence: The Preamble’S Concern With Internal And External Threats, Stuart Ford

UC Law Constitutional Quarterly

No abstract provided.

2025-2026 Global Feedback Report: Uni Scholarworks, University Of Northern Iowa, Rod Library

Library Documents & Reports (entire collection)

This library report was prepared by the Digital Scholarship Librarian at the University of Northern Iowa as part of assessment efforts demonstrating the reach and impact of departments and programs at the University of Northern Iowa. The global input is related to specific works found in UNI's institutional repository, UNI ScholarWorks (http://www.scholarworks.uni.edu.)

Understanding Retention Barriers Contributing To Nursing Shortages: A Mixed-Methods Approach To Workforce Sustainability, Vena X. Addison

MSHS Student Capstones

The healthcare system faces a critical challenge as nursing shortages intensify, driven by factors such as an aging workforce, increased patient complexity, and insufficient organizational support. This study explores the multifaceted impact of these shortages on patient safety, care quality, and nurse well-being. Through mixed-methods analysis, it investigates how inadequate staffing ratios, lack of clinical training and resources, limited leadership support for work-life balance, and limited career advancement opportunities contribute to elevated stress, burnout, and attrition. The research highlights interventions, including mentorship, flexible staffing models, and professional development models, to address retention and sustain workforce capacity. Findings underscore the urgency …

Reducing Disparities In Breast Cancer Screening: A Mobile Mammography Initiative In Middle Georgia, Latasha T. Hill

MSHS Student Capstones

This capstone project evaluated the implementation of mobile mammography units to improve access to breast cancer screening in Middle Georgia. The project aimed to reduce disparities in early detection and increase screening participation among underserved women aged 40 and older. Using the Health Belief Model as a theoretical framework, the initiative deployed a state-of-the-art mobile mammography unit, engaged community stakeholders, and implemented culturally responsive outreach. Over 6 months, 1,000 screenings were conducted, exceeding targets and demonstrating significant improvements in first-time screening rates, patient satisfaction, and follow-up adherence. Findings suggest mobile mammography is an effective quality improvement strategy to advance health …

Thickness Of Devonian Shale, Kentucky-Tennessee Mineral District (Ktmd), John B. Hickman, Alex M. Washburn, Georgina Lukoczki

Research Data--KGS

The deposits of critical minerals have been found in metalliferous shales. To aid in critical mineral assessments of the Devonian Shales in the Kentucky-Tennessee Mineral District (KTMD), this research project produced a map (digital GIS dataset) of the thickness (isopach) of the combined New Albany Shale/Chattanooga Shale/Ohio Shale interval across the region. The subsurface input data are from oil/gas well records and exploratory mineral core. Well and core records for the KTMD were acquired from the state surveys of Tennessee and Kentucky. Along with the GIS files, a summary table of the 6,607 well and core data points used to …

Structure On The Top Of Knox Group, Kentucky-Tennessee Mineral District (Ktmd), John B. Hickman

Research Data--KGS

The deposits of critical minerals within the Kentucky-Tennessee Mineral District (KTMD) are hosted within the Late Cambrian to Early Ordovician carbonate rocks of the Knox Group. To aid in critical mineral assessments of the region, this research project produced a map (digital GIS dataset) of the subsurface structure of the top of the Knox Group: the Knox Unconformity surface. All the input data is from oil/gas well records and exploratory mineral core records because these rocks are not exposed within the study area. Well and core records for the KTMD were acquired from the state surveys of Tennessee and Kentucky …

Agenda 2025-07, Staff Council

Staff Advisory Council Meeting Agendas

A meeting agenda is a list of the topics that will be discussed during a meeting, along with other details. The agenda is usually shared with participants before the meeting so they can prepare. The agenda's purpose is to give participants a clear outline of what should happen in the meeting, who will lead each task, and how long each step should take.

Inflammatory Bowel Disease: Patient Journey And Cancer Pathology, Katie Contino, Ms

Student Papers, Posters & Projects

Inflammatory Bowel Disease is a relapsing-remitting autoimmune disease that affects the gastrointestinal tract. It consists of Crohn’s disease, which can affect the entire gastrointestinal system, and ulcerative colitis, which is limited to the colon. Inflammatory Bowel Disease has various different levels of severity that have different treatment and medication options once the diagnosis is confirmed with an endoscopic procedure. The treatment options range from daily medication to invasive surgical procedures. Specific diets are also used as a preventative measure to remain in remission. The intestinal damage inflicted to the epithelium increases the risk of developing colon cancer, specifically those with …

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 …

Exploring The Capabilities Of Llms For Code-Change-Related Tasks, Lishui Fan, Jiakun Liu, Zhongxin Liu, David Lo, Xin Xia, Shanping Li

Research Collection School Of Computing and Information Systems

Developers deal with code-change-related tasks daily, e.g., reviewing code. Pre-trained code and code-change-oriented models have been adapted to help developers with such tasks. Recently, large language models (LLMs) have shown their effectiveness in code-related tasks. However, existing LLMs for code focus on general code syntax and semantics rather than the differences between two code versions. Thus, it is an open question how LLMs perform on code-change-related tasks.To answer this question, we conduct an empirical study using 1B parameters LLMs on three code-change-related tasks, i.e., code review generation, commit message generation, and just-in-time comment update, with in-context learning (ICL) and parameter-efficient …

Wa-Fdnet: A Unified Weight Adaptation Network For Multimodal Image Fusion And Object Detection, Yanyin Guo, Ying Luo, Junwei Li, Zhiyuan Zhang

Research Collection School Of Computing and Information Systems

Multimodal image fusion and object detection are critical tasks in computer vision, particularly in scenarios requiring robust perception under low illumination conditions. Existing approaches that attempt to combine these tasks often rely on cascaded or loosely coupled designs, which can result in suboptimal performance due to gradient conflicts and task imbalance. In this paper, we propose WA-FDNet, a novel Weight Adaptation Fusion Detection Network that unifies multimodal image fusion and object detection into a single end-to-end framework. WA-FDNet adopts a shared encoder–private decoder architecture, enabling efficient feature sharing while preserving task-specific characteristics. The image fusion branch employs a spatial attention-based …

Analyzing The Impact Of Covid-19 On The Achievement Gap: The State Of Education In Minnesota From A Superintendent's Perspective, Jillian Stockmo Chapman

School of Education and Leadership Student Capstone Theses and Dissertations

The COVID-19 pandemic disrupted education systems globally, nationally and in Minnesota. This created difficulties but also opportunities for innovation, especially for students most impacted by educational inequities. This dissertation investigates the impacts of the pandemic through three related research questions: (1) In what ways did COVID-19 impact Minnesota’s achievement gap? (2) How do superintendents describe the impact of COVID-19 on their districts and their districts’ disparities? And (3) What have been some of the most innovative opportunities districts’ have explored to recoup learning loss emerging from the COVID-19 crisis?

Using a qualitative research design that is grounded in a transformative …