Digital Commons Network^™

Using Simulations And Machine Learning To Improve Routing Algorithms In Wireless Sensor Networks, Luke Abels

Honors Program Theses

Wireless sensor networks (WSNs) are widely used in fields such as environmental monitoring, smart agriculture, disaster response, and other applications where low-power devices must communicate reliably over time. Because these networks operate under limited energy and communication constraints, routing and broadcast strategies strongly influence performance, scalability, and network lifetime. This thesis examines how simulation and machine learning can be used to study interference-aware broadcasting in WSNs. The project first evaluates the usefulness of existing network simulation tools, including ns-3, and then describes the development of a custom Python simulator designed for rapid experimentation with broadcast behavior, mobility, and signal-to-interference-plus-noise ratio …

Characterizing Glacial Sediments From The Cincinnati, Ohio Area By Analyzing Grain Size Distribution And Elemental Composition, Laura Comstock

Honors Program Theses

Reconstructing the history of ice sheet dynamics is essential for understanding how past climate change has shaped modern landscapes. The Laurentide Ice Sheet advanced and retreated multiple times over North America during the Pleistocene Epoch. Although there is widespread sedimentary evidence for the most recent glacial episode, much of the evidence of older glaciations has been overwritten by more recent glacial advances. This study focuses on Paddison Run, an exposed Pleistocene sequence near Cincinnati, Ohio, that has previously been interpreted as Illinoian in age. Five distinct units were identified within the exposure, based on centimeter logging of this section, high-resolution …

Aging Across Cultures: How Cultural Attitudes Shape Senior Care In Japan And The United States, Ella Jane Gunn

Honors Program Theses

The purpose of this study is to examine how cultural perceptions of aging influence the structure and delivery of care for older adults in Japan and the United States. By comparing cultural attitudes, this study identifies implications for senior care in each country. While cross-cultural studies comparing senior care systems already exist, many lack the cultural context that shapes expectations about aging and care. This work focuses on this distinction. Ten individuals ranging in age from 21 to 83 participated in interviews about their perceptions of aging: five with an American background and five with a Japanese background. The interviews …

Temporal Analysis Of Supraglacial Drainage Systems On The Greenland Ice Sheet From 2009-2017 Using Very High-Resolution Satellite Imagery, Field Measurements, And Climate Models, Natalie Gallegos Nunez

Dissertations and Theses @ UNI

Anthropogenic disturbance and global warming are enhancing the influx of freshwater into the oceans from melting glaciers and ice sheets. The Greenland Ice Sheet (GrIS) has experienced accelerated surface melt which is expected to reduce North Atlantic Deep Water (NADW) formation and Atlantic thermohaline circulation. More than half of the GrIS total mass loss is due to meltwater runoff produced on the surface by supraglacial lakes, streams, and rivers. The goal of this study is to monitor changes in supraglacial drainage systems developed in the Southwest region on the GrIS for the 2009-2017 melt seasons and to map the impact …

2023-28 Strategic Plan: Building Our Tomorrow [January 2026 Progress Report], University Of Northern Iowa

Institutional Effectiveness & Planning Documents

A report including examples of progress on the strategic goals within the University of Northern Iowa's 2023-28 strategic plan as of January 2026.

Front Matter - Table Of Contents - Preface

Iowa Journal of Communication

No abstract provided.

"That's Just Not Who I Am": Rejection Of The Good Mother Ideology And Other Tools Used By Homeschool Moms To Navigate Motherhood, Gina S. Reynolds

Iowa Journal of Communication

Studying mothers often focuses on the mother-child dynamic rather than the mother as a person. Mother types, such as working mothers, often are singled out for study. One mother that is rarely considered is the homeschool mother. In homeschooling, the mother typically takes the active role in educating the children, and she receives little attention as a person (Lois, 2016). This study examines how these mother/teachers navigate their motherhood. Nine online discussions with 26 homeschooling mothers revealed strong connections to self-efficacy and agency. Agency and self-efficacy contributed to the mother’s ability to navigate and manage the tension between her needs …

Understanding Dementia Challenges In Rural Ghana: A Systematic Review, Diana Maame Agyeiwaa Agyei, Sesi Sedegah, Abena Abokoma Asemanyi, Theresa Ayertey, Wendy Yeboah

Iowa Journal of Communication

Dementia poses an escalating public health challenge in Ghana due to an expanding aging population, yet rural awareness remains critically low. Guided by Mohan Dutta’s Culture-Centered Approach (CCA), this PRISMA-compliant qualitative systematic review synthesized ten peer-reviewed articles to examine cultural perceptions and lived experiences surrounding dementia in rural Ghana. The findings highlight that cognitive decline is widely misattributed to witchcraft or normalized as standard aging. Witchcraft misconceptions subject individuals—especially older women—to severe stigmatization, social exclusion, physical abuse, and banishment to "witch camps". Meanwhile, normalizing symptoms as ordinary aging delays critical medical care and shifts family decision-making away from patients. Furthermore, …

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 …

On The Surface: The Mural Of Shireen Abu Akleh As Space For Encounter, Saja Abd El Hai

Dissertations and Theses @ UNI

This thesis examines a mural of Palestinian journalist Shireen Abu Akleh in the city of Baqa al-Gharbiya as a site of political encounter. Rather than approaching the mural solely as a commemorative image, the study analyzes how it generated a series of interactions through acts of creation, defacement, restoration, performance, and digital circulation. Drawing on scholarship in visual culture, graffiti studies, and political theory, I argue that the mural operates as a gendered space of political encounter through which grief, resistance, and national identity are negotiated in public space. Methodologically, the project combines visual and contextual analysis with rhetorical criticism, …

Examining The Current And Potential Impacts Of Erosion, Flooding, And Permafrost Thaw On Small Businesses In The Lower Kuskokwim Basin, Alaska, Dela Yao Agbagba

Dissertations and Theses @ UNI

Climate change has intensified hazards such as flooding, erosion, and permafrost thaw in Arctic Communities, threatening small business buildings, disrupting operations, and reducing income. Small businesses are important to these communities because they provide essential goods and services and support local economic activity. Understanding their vulnerability and adaptation needs is therefore important for sustaining communities in the Lower Kuskokwim Basin, Alaska.

This study used GIS spatial analysis and content analysis as its two main methods, supported by a limited number of semi-structured interviews. A spatial database of 78 businesses across seven Alaska Native Communities was developed, and flood susceptibility was …

Exploring Governance And Government Policies Of Preparedness And Response To Flooding In Juneau, Alaska, Derreck Asiamah

Dissertations and Theses @ UNI

Flooding poses an escalating threat to human well-being, economic stability, and environmental resilience in climate-sensitive regions such as Juneau, Alaska, where the retreat of the Mendenhall Glacier has produced an actively expanding ice-dammed lake, Suicide Basin, capable of triggering an annual Glacial Lake Outburst Flood (GLOF). This thesis explores the governance and government policies shaping flood preparedness and response in Juneau, Alaska, with particular attention to GLOF risk and the August 2024 GLOF, one of the most destructive flood events in the city's history. Grounded in adaptive governance theory and political ecology, the study offers a multidimensional perspective on institutional …

Are Iowa Pk-12 Schools Prepared For A School Shooting? A Needs Assessment Of Iowa Superintendents, Kurt Mj Devore

Dissertations and Theses @ UNI

As school shootings remain a persistent threat to PK-12 education, this quantitative survey study examines the preparedness levels and beliefs of 75 out of 277 Iowa superintendents regarding active shooter events. In the wake of the 2024 tragedy in Perry, Iowa, results indicate a near-universal recognition of risk (97.3%), prompting a shift toward "muscle memory" training and the adoption of the Standard Response Protocol (SRP) to ensure a common language during a crisis. The data reveals a significant move away from high-intensity simulations in favor of trauma-informed tabletop exercises, alongside a definitive rejection of arming educators (0%) due to insurance …

Analysis Of Environmental Site Assessments Of Brownfield Redevelopment In Waterloo, Iowa, Sage Cappi

Dissertations and Theses @ UNI

This thesis examines how Environmental Site Assessments (ESAs) are interpreted and utilized in the context of Brownfield redevelopment, with particular attention to the relationship between historical context, contamination, health risk, and future redevelopment possibilities. While ESAs are widely used to inform redevelopment decisions, there remains a gap in understanding how reported environmental data translates into meaningful assessments. To address this, this study analyzes historical and environmental data from six Brownfield sites, identifying documented contaminants, their associated carcinogenic group, and redevelopment potential. Central to this research is the development of a relational framework designed to function as a more approachable interpretive …

Clinical And Community-Based Recovery Models: The Focus On How They Can Be Better Together, Alicia Wilder

Graduate Research Papers

Two of the main pathways for individuals to access recovery services are clinical and community-based. The clinical model focuses on medical stabilization and treatment, followed by community-based care that provides peer-driven support and sustainability through connection. The purpose is to examine how recovery models aim to support those in recovery and pinpoint the ways they can integrate medical and social systems to meet client needs. Comparing the two will allow us to understand how each model supports sustained recovery and overall well-being. The question that will be researched in this study is: How do acute clinical treatment and community- based …

Sight Or Sound?: A Review Of The Literature, Benjamin Chavers

Graduate Research Papers

This literature review examines the longstanding pedagogical debate between rote (aural) and note (notation-based) approaches to music learning, exploring their respective impacts on student performance, retention, and overall musicianship across diverse educational contexts. Drawing on historical, cultural, and empirical research, the study synthesizes findings from non-traditional settings (including culturally transmitted music practices and music education for visually impaired learners), instrumental and vocal classrooms, and general music environments. The literature reveals that rote learning, deeply rooted in global musical traditions and early American pedagogy, supports rapid skill acquisition, audiation, and expressive performance, particularly among beginning and younger learners. Conversely, note-based instruction …

An Exploratory Study In Sports Geography: The Interaction With The Environment And Sense Of Place In Endurance Running Events, Jackson Steffener

Dissertations and Theses @ UNI

This study examines how endurance running shapes runners' sense of place through interactions with physical environments, social dynamics, and embodied experience. With sports geography, it explores how participants form emotional and spatial connections to race settings while moving through varied landscapes under physical strain. A phenomenological multi-site case study design was used, focusing on four endurance events in Iowa that differed in terrain, setting, and structure.

Data were collected from 46 participants using mental mapping and semi structured field notes. Mental maps identified meaningful locations along race courses, while field notes captured emotional responses, environmental conditions, and social interactions. Thematic …

Sexual And Bystander Harassment Among Part-Time Employees: Effects On Work Attitudes, Stress, And Withdrawal, Robert T. Hitlan

Faculty Publications

This study investigated the impact of sexual and bystander harassment experiences on work attitudes, stress, withdrawal, and psychological well-being of part-time employees. Participants included 314 female employees who worked part-time in their organizations. All participants completed a computer-administered workplace experience survey assessing various aspects of their work environment, including personal and bystander harassment experiences, work-related attitudes (supervisor satisfaction, coworker satisfaction, and general job stress), work behaviors (work and job withdrawal), and psychological well-being. Experiences of sexual harassment and bystander harassment were predicted to be negatively related to satisfaction and psychological health and positively related to stress and withdrawal. Both forms …

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

Introduction To The Special Issue, “Forgiveness Education Around The World: Considerations, Benefits, And Approaches”, Suzanne Freedman

Faculty Publications

No abstract provided.

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

Love, Sex, & Aging: Gendered Perspective On Relationship Desires And Satisfaction In Older Adulthood, William Henninger, Melinda Heinz, Nathan Taylor

Faculty Publications

This research explores gender differences in long- and short-term relationships and sexual satisfaction among older adults. Socioemotional Selectivity Theory posits that as people age, they prioritize immediate emotional satisfaction due to perceptions of limited time. This shift influences older adults’ romantic relationships, increasing the likelihood of seeking meaningful connections and reducing the prevalence of negative emotions. With healthy relationships linked to physical, psychological, and financial benefits, research is needed to further understand older adult romantic relationships. Older adults (n = 155) from the Seniors Together in Aging Research (STAR) completed a survey assessing relationship preferences and current and predicted sexual …

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

University Students’ Condom Use During The Covid-19 Pandemic: Cross-Cultural Differences And What Predict Them, Liam Dacosta, James S. Morandini, Rebecca T. Pinkus, Elien De Caluwé, Lik Sam Chan, Olivine Lo, Saowanee Thongnopakun, Sawitree Visanuyothin, Cheryl Harasymchuk, Samantha Joel, Helen C. Harton, Alyssa Mccoy, Victoria Dale, David L. Rodrigues, Judit Takács, Alexandra Sipos, Veronica M. Lamarche, Racidon Bernarte, Viktorija Čepukienė, Ivana M. Jakšić, Bojana Bodroža, Huỳnh Hồng Mai, Tran Thi Hong, Grace Akello, Ivana Hromatko, Asha Ganesan, Jiawei Zhang, Damian Murray, James Moran, Juan Ramón Barrada, Ángel Castro, Claudia Navarro-Roldan, Kuan-Pin Su, Jane Chang, Matthew B. Ruby, Donya Ziadlou, Shin Nakamine, Yutaka Watanabe, Albert Lee, Richelle-Joy Chia, Ilan Dar-Nimrod

Faculty Publications

Humans instinctively adopt methods to reduce their risk of encountering harmful pathogens, yet their adherence to preventive health practices can often be erratic. Condoms exemplify one vital preventive tool against sexually transmitted infections (STIs) that, despite their effectiveness, are not consistently utilized. This pattern of behavior appears to persist even during periods of widespread disease transmission, with varied data from the COVID-19 pandemic indicating that condom usage remained inconsistent. The present study aimed to clarify these inconsistencies by examining changes in condom use cross-culturally. Heterosexual participants who were sexually active (N = 3,972 [1,327 men, 2,645 women], Mage= 22.82) across …

Premier, Fall 2025, University Of Northern Iowa. College Of Education.

Premier

Contents:

From the Dean --- 3
Transforming Teacher Education --- 4
New Alignment, New Directions --- 10
Graduate Education on the Rise --- 14
A Shared Bond, a Special Legacy --- 18
Alumni Profiles --- 22
Foundation Focus --- 26
Center Spotlights --- 28
Scholarly Spotlight --- 30
Cats: Forever Looking Forward --- 32
News & Notes --- 34
Celebrating Excellence --- 36
Perspectives --- 38

Science Education News, Fall 2025, University Of Northern Iowa. Science Education Program.

Science Education News

Contents:

--- A Message from the Director of Science Education, Lawrence Escalada
--- Faculty Profile: Jesse Wilcox
--- Staff Profile: Lori Wurtz
--- Student Profile: Graduate student Caleb Christine
--- Student Profile: Undergraduate student: Eliana Nava
--- Yager Science Education Resources & Outreach
--- OpenSciEd
--- Next Gen Full Option Science Systems (FOSS)
--- UNI Student Chapter of the National Science Teachers Association
--- UNI Science Education Update Conference
--- NSTA Student Chapter
--- Yager Science Education Resources & Student Profiles
--- Statewide Iowa Department of Education Professional Learning Events
--- State of Iowa Physics Competition
--- Physics Day at …

Stories Of Racism And Resistance: A Narrative Analysis Of Stories Told In The Uk Windrush Generation And Descendants Of The Windrush Generation, Jessica Blumsom, Jacqui Scott, Emma Karwatzki, Aishath Nasheeda, David Hernandez-Saca, Alyson Malach, Glenda Andrew

Faculty Publications

The Windrush Generation (WG) and their descendants continue to experience adversity in the UK, including racism and the Windrush Scandal, with such adversities absent from psychological research literature. Intergenerational trauma is a psychological concept explaining that adverse experiences can be transmitted from one generation to impact subsequent generations. There has been limited consideration of the ongoing impact of adverse experiences that span multiple generations, such as experiences of racism within Western Europe. This paper utilised a narrative research design to study the narratives of members of the WG and those of their descendants in the UK. Eight expert by experience …

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

Iowa Waste Reduction Center Newsletter

Contents:

--- Joe Bolick named NPPR Chair
--- Open House Party Recap
--- Green Brewery Certification has come to Missouri
--- Clear guidance, real results: IAEAP
--- AI training for Waste Partners

Uni Schedule Of Classes: Policies And Procedures, Fall 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.

Dilute Magnetic Impurity-Induced Effective Phonon Magnetic Moment In Fe-Doped Monolayer Mos2, Hussam Mustafa, Gaihua Ye, Cynthia Nnokwe, Mengqi Fang, Mohamed Kandil, Abdullah Al-Mahboob, Kai Wu, Andrew James Stollenwerk, Timothy E. Kidd, Paul M. Shand, Jerzy T. Sadowski, Eui Hyeok Yang, Yinong Zhou, Rui He, Wencan Jin

Faculty Publications

Realization of large effective phonon magnetic moment in monolayer MoS2 has established an important route for exploring intriguing magnetic phenomena in a nonmagnetic material. The sizable coupling between the orbital transition and the circularly polarized phonon results in the large effective phonon magnetic moment. In this work, using magneto-Raman spectroscopy, we investigate substitutional doping of magnetic atoms as a tuning knob of the electronic and phononic properties of MoS2. We show that Fe-doping polarizes the spin of the conduction bands and introduces a localized Fe band underneath the conduction band. As a result, an additional orbital transition between the Mo …