Digital Commons Network^™

Long-Term Changes In Ground-Level Ozone And Nitrogen Dioxide, Blake Bixby, Kevin Du, Noah Teske

Summer Undergraduate Research Program (SURP) Symposium

Ground-level ozone (O₃) is a secondary pollutant formed through photochemical reactions involving nitrogen oxides (NOₓ), volatile organic compounds (VOCs), and sunlight. This study combines satellite observations from NASA OMI with surface monitoring data from the Texas Commission on Environmental Quality (TCEQ) to evaluate long-term changes in NO₂ and ozone between 2005 and 2025. Global NO₂ distributions, Houston monitoring stations, and hourly pollutant concentrations were analyzed to investigate temporal and seasonal variations. Results indicate declining NO₂ concentrations over many developed regions, while ozone continues to exhibit strong photochemical and seasonal behavior.

Analyzing The Effect Of Physical And Chemical Properties On Spectral Absorption Of Hemoglobin, Anna N. Gregorsok, Carl L. Thurman

Summer Undergraduate Research Program (SURP) Symposium

Hemoglobin oxygen affinity is influenced by intracellular pH through the Bohr effect, making pH an important regulator of oxygen delivery throughout the body. Before oxygen-binding affinity can be quantified, the optical properties of hemoglobin under different pH conditions must first be characterized. In this study, free hemoglobin was analyzed at five physiologically relevant pH values (6.72, 7.00, 7.33, 7.63, and 7.92), representing conditions ranging from acidosis to alkalosis. Human red blood cells were lysed in hypotonic phosphate solutions, and absorbance spectra were collected using a scanning spectrophotometer. The resulting spectra establish baseline optical characteristics of hemoglobin across physiologically relevant pH …

Iowa Waste Reduction Center News, June 2026, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- Thank you, Leslie
--- Zane joins the IWRC
--- DNR Air Fee changes
--- What does MSEI assistance look like?
--- P2 Green Brewery Certification webinars
--- Energy Efficiency resources
--- Industry News

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 …

Sesquicentennial Commencement [Program], May 15-16, 2026, University Of Northern Iowa

UNI Commencement Programs

Contents:

Brief History of UNI --- 2
Board of Regents --- 3
Institutional Leadership --- 3
Ceremony Symbols & Traditions --- 4
Commencement Over the Years --- 6
University Honors Program --- 8
Graduation with Honors --- 8
Legacy Graduates --- 8
Military Science --- 9
Merchant Scholarship --- 9
Outstanding Student Leader --- 9
Commencement Student Speakers --- 9
Purple and Old Gold Awards --- 10
Lux Service Award --- 11
7 p.m. Program --- 13
College of Education --- 15
David W. Wilson College of Business --- 22
10 a.m. Program --- 29
College of Humanities, Arts & …

Iowa Waste Reduction Center News, May 2026, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- P2 Green Brewery Webinar #2 Registration
--- Solid Waste Educators Meeting
--- Farewell Interns
--- Energy Efficiency Resources
--- Industry News

Considerations When Designing In Vivo Protocols For Conducting Biomechanical Research Of The Shoulder Joint In Hockey Athletes, Kylie Giesler

Honors Program Theses

While the numbers and details of hockey-related injuries are variable across sources due to variations in sample age, sex, location, and confidentiality of many large hockey leagues, a 2023 narrative review study identified more than 100,000 upper extremity injuries documented in research since 2000. Nearly half of those injuries were to the shoulder with common injuries being acromioclavicular joint sprains, shoulder instability and dislocations, labral and rotator cuff tears, and clavicle fractures. In respect to the National Hockey League (NHL), the highest level of play in ice hockey, 12% of all injuries are to the shoulder, second only to head …

Ai In Insurance Industry: Using Machine Learning To Improve Insurance Risk Predictions, Simbarashe Ngonyamo

INSPIRE Student Research and Engagement Conference

• Insurance companies rely heavily on accurate risk prediction to identify potential customers, make marketing easier, and reducing the chances of loosing money.
• Traditionally, actuarial models such as logistic and Probit regression have been widely used because they are interpretable and statistically solid.
• However because of the rapid growth of data, insurance companies have started to shift from these traditional methods to machine learning techniques that can capture more complex and nonlinear relationships which traditional models may miss
• Therefore, this study investigates whether modern machine learning techniques—specifically Random Forest and XGBoost—can outperform traditional actuarial models in predicting customer interest in vehicle …

From Punishment To Public Health: Rethinking Addiction In The U.S And Portugal, Kenna Hall-Hoyt, Sarah Denin, Shelby Jenkins

INSPIRE Student Research and Engagement Conference

Portugal's approach to combat substance use disorder has been a commonly discussed public health strategy over the last decade because it challenges the idea that punishing the drug user detours the drug issue. In 2001, the country decided to decriminalize substance use disorder and change addiction services to be under the Ministry of Health. The approach that Portugal is using in its research looks very different from places like the U.S., who over-medicate and then criminalizes drug users. Portugal, instead, steers individuals to local groups comprising of psychologists, social workers, and health professionals who work with them to find the …

The Importance Of Education: A Comparison Of Educational Systems In The United States And South Sudan, Allie Haughenbury, Faith Defenbaugh, Emma Randecker, Hadley Farrell, Haylea Tillman

INSPIRE Student Research and Engagement Conference

The significance of education in creating opportunities for individuals has been established as important to both individual growth and national development. The purpose of this project is to assess the role of education by comparing the educational system in the United States with that of South Sudan in terms of structure, accessibility, and barriers. The U.S. has a well developed educational system with access to public education for (almost) all children, whereas children in South Sudan face significant challenges to receiving an education. These challenges include a lack of infrastructure, a lack of trained educators, a lack of resources, and …

Women's Access To Education: A Global Perspective, Olivia Clausen, Lillie-Kay Colby, Ellie-Lynn Colby

INSPIRE Student Research and Engagement Conference

Access to education for women has been restricted in various ways across the globe throughout history. Many of these restrictions have led to gender disparities in access to work, which pushes women into more vulnerable situations, such as poverty, abuse, or forced marriages. The goal of this research is to raise awareness and knowledge about women’s and girls’ education in South Sudan, given its 93% illiteracy rate among women. According to UNESCO, among the 84% of countries that legally protect the right to education, only 57% explicitly guarantee it without discrimination on the basis of sex and/or gender. Education for …

Iowa Waste Reduction Center News, April 2026, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- MSEI Final Day Reminder
--- UNI Day of Service
--- Advisory Board Meeting Recap
--- Industry News

Iowa Waste Reduction Center Newsletter, March 2026, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- Welcome, IWRC Advisory Committee
--- Growing Iowa’s Composting Movement to National Leadership
--- Diane Albertson Memorial Scholarship
--- P2 Green Brewery Webinar Registration is Now Open
--- Potential Hazards of Lithium-Ion Batteries in Landfills

University Of Northern Iowa Faculty Senate Meeting Minutes, February 23, 2026, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting minutes from the Faculty Senate of the University of Northern Iowa.

Iowa Waste Reduction Center Newsletter, February 2026, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- Cedar Rapids Linn County SWA Wins Award
--- Energy Savings Made Simple: What is An Energy Audit?
--- New IEDA Grant Helps Rural Grocers Power Up
--- Dan Nickey Gets Thermography Certified
--- You’re Invited to UNI Day of Service
--- Minor Source Emission Inventory
--- IStorm 26
--- Industry News

Navigating Technology In The Secondary Ela Classroom: Written By Teachers For Teachers, David M. Grant, Alexandra Parham, Ashley Webb, Kimberly Cavalier, Erin Neebel, Amber Schouten

Faculty Book Gallery

This collection is a digital project of dedicated teacher-scholars who met in the summer of 2025 as part of the University of Northern Iowa’s graduate program in Teaching English in the Secondary Schools (TESS). Using the theoretical lens of multiliteracies, developed by the New London Group in the 1990s, students examined the impacts of several electronic and digital technologies on their students and their teaching, especially Artificial Intelligence, or A.I. Through fiction, nonfiction, and discussion, students considered the changes, the challenges, and the opportunities these technologies held. Most importantly, they investigated what these developments meant for their teaching, their districts, …

Iowa Waste Reduction Center Newsletter, January 2026, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- Jim's Final Farewell
--- MSEI for Central Iowa and for All Portable Plants
--- P2 Grant Ramps up to Enhance Brewery Pollution
--- Introducing Our Newest Interns
--- IStorm 26
--- Industry News

Iowa Waste Reduction Center Newsletter, January 2026, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- Retirement Celebration: Jim Olson

A Culturally And Linguistically Responsive Multi-Tiered System Of Supports For Emergent Bilingual Students With And Without Disabilities, Ben Christensen

Graduate Research Papers

No abstract provided.

Dynamic Social Impact Theory And The Consolidation And Dispersal Of Clusters In Squid Game: The Challenge, Adrienne Darrah, Robert J. Darrah

Iowa Journal of Communication

This study utilizes a dynamic social impact theory (DSIT) framework to analyze human influence on the popular Netflix television series Squid Game: The Challenge. A British reality competition, Squid Game: The Challenge is comprised of ten-episodes and features 456 contestants vying for $4.56 million. As contestants self-organize into social alliances, their shared attitudes, beliefs, and values transform the physical space into a dynamic social space. The creation of clusters through these alliances, the correlation between contestant attitudes and behaviors, and the consolidation of contestant attitudes and behaviors reflective of alliance needs is reinforced by the physical proximity of contestants, the …

An Analysis Of The Influence Of Project-Based Assessments In Middle School Mathematics, Andrea Fettkether

Dissertations and Theses @ UNI

In today’s diverse classrooms, teachers face the challenge of educating students with varied academic abilities, including those with disabilities, gifted learners, and students at grade level. The Individuals with Disabilities Education Act (IDEA) ensures inclusive access to core curriculum, but educators must differentiate instruction to meet all learners’ needs. Traditional assessments focus on rote memorization, often failing to reflect deeper understanding or real-world problem-solving.

In middle school math, standard curricula often lack project-based assessments, despite research supporting their effectiveness in improving academic achievement and student engagement. Students benefit from working in collaborative environments where they can discuss mathematical ideas, receive …

Transforming The Chemistry Classroom: Flipped Learning As A Scaffold For Inquiry, Hannah Alicia Nash

Graduate Research Papers

This action research study examines how the placement of flipped instruction within a 5E instructional model impacts student content understanding and perceptions of learning in a high school Chemistry II course. Research was conducted across three sections during a gas laws unit, with each section experiencing a different instructional approach. These approaches included flipped instruction in the Engage phase, flipped instruction in the Explain phase, or a non-flipped approach in which all parts of the 5E occurred in class. Pre and post tests were used to measure student understanding, while surveys and reflections were used to gather student perceptions of …

Integrating Literacy Into A High School Climate Change Unit, Bailey Bushman

Graduate Research Papers

The ability to read is an important skill for members of society. Teaching students to read is often left up to elementary teachers and then secondary English teachers are expected to expand on those skills, but other content areas can help teach the needed literacy skills to students. In addition to typical literacy skills like reading and writing, students need to be able to understand climate science in order to make responsible decisions about the Earth’s future.

One way to ensure that students are getting both literacy skills and disciplinary content would be for science teachers to include a variety …

Stem Identities Of Iowa State University's Biological And Biomanufacturing Systems Technology Students, Levi Nettleton

Dissertations and Theses @ UNI

STEM identity plays a crucial role in students' pursuit and persistence into the STEM field. Iowa State University's Biological and Biomanufacturing Systems Technology (BBST) undergraduate program, developed in alignment with the goals of Chemurgy 2.0, prepares students for careers in the growing STEM workforce. The purpose of this study is to examine how participation in the Biological and Biomanufacturing Systems Technology program influences undergraduate students' STEM identity and how students within the program perceive themselves within the scope of STEM. Specifically, the study investigates students' perceptions of their STEM identity across the four components of STEM identity: recognition, performance and …

Proof Techniques In Analysis, Francis Antwi Frimpong

Graduate Research Papers

No abstract provided.

Commencement [Program], December 20, 2025, University Of Northern Iowa

UNI Commencement Programs

Contents:

University Organization --- 2
Ceremony Symbols & Traditions --- 3
University Honors Program --- 4
Graduation with Honors --- 4
Legacy Graduates --- 4
Order of Events --- 5
College of Education --- 6
College of Humanities, Arts & Sciences --- 12
College of Social & Behavioral Sciences --- 19
David W. Wilson College of Business --- 26
Division of Online Education & Individual Studies --- 31
UNI Alma Mater --- 34

Iowa Waste Reduction Center Newsletter, December 2025, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- Season of Joy
--- A Thirty-Seven Year Career Deserves a Celebration
--- Energy Efficiency Assistance Program for Iowa Small Businesses
--- Reporting Deadline: Grain Facility PM10 PTE
--- Reporting Deadline: 6X Certification and Compliance Report
--- Our Team is Growing! Meet our new Environmental Interns
--- IWRC hosts the IACC Strategic Planning Session
--- Industry News

Iowa Waste Reduction Center Newsletter, November 2025, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- Thanksgiving Message
--- Passing the Environmental Compliance Torch
--- 2026-2027 Recordkeeping Compliance Calendars for Dry Cleaners
--- 2026 Compliance Calendars/Logbook for Bulk Gasoline Plants
--- 2026 IStorm Conference
--- Industry News

Home Range Size And Habitat Usage Of Hatchling And Juvenile Wood Turtles (Glyptemys Insculpta) In Iowa, Jeffrey W. Tamplin, Joshua G. Otten, Samuel W. Berg, Nadia E. Patel, Jacob B. Tipton, Justine M.R. Radunzel

Faculty Publications

The Wood Turtle (Glyptemys insculpta) is an endangered species in the state of Iowa and a species of conservation concern across their entire range. The Iowa population is characterized by high levels of adult and egg predation, displays little or no annual recruitment, and harbors an extremely low number of juveniles (7.3%). Home range and habitat usage studies of hatchling and juvenile Wood Turtles are limited to a few studies, and only one study of juveniles exists from the state of Iowa. Over a 10 yr period, we conducted a radiotelemetry study in Iowa on seven juvenile wood turtles for …

Minutes Of Graduate College Committee On Curricula, October 3, 2025, University Of Northern Iowa. Graduate Curriculum Committee.

Minutes - Graduate Curriculum Committee

Minutes of Graduate College Committee on Curricula, September 5, 2025