Digital Commons Network^™

The Efficacy Of Open Educational Resources On Achievement Outcomes In Different Higher Education Institutions, Angela Grace Findlay

Theses and Dissertations

Students suffer from achievement gaps in higher education. Achievement gaps refer to differences in graduation rates, retention rates, persistence rates, and student's grades. Achievement gaps may negatively affect students who are culturally or ethnically diverse and/or have a lower socioeconomic status. The use of open educational resources (OER) may mitigate achievement gaps as OER assists student success through higher academic performance and cost savings for students. Average quiz scores were obtained at different higher education institutions using an Introduction to Psychology OER. The scores from each course were analyzed using hierarchical linear modeling. Colleges were nested by demographics to evaluate …

Compliant Mechanisms For Scalable Systems And Precision Deployment, Jared Rodney Hunter

Theses and Dissertations

Compliant mechanisms offer advantages in precision applications where size, scaling, and environmental effects render traditional mechanisms inadequate or likely to fail. However, designing compliant mechanisms and integrating them into larger, more complex systems remains a challenging problem. This thesis presents work that addresses this issue with analytical models and experiments on flat springs, scalable compliant mechanisms, and origami arrays. Storing and releasing energy in tiny, flat compliant mechanisms opens the door for the design of innovative actuators and products in space-constrained situations. Scaling compliant mechanisms allows novel systems to be made that can operate across scales. By designing for scalability …

Human Gut Commensal Alistipes Timonensis Modulates The Host Lipidome And Delivers Anti-Inflammatory Outer Membrane Vesicles To Suppress Colitis In An Il10-Deficient Mouse Model, Ethan Older, Mary K. Mitchell, Andrew Campbell, Xiaoying Lian, Michael Madden, Yuzhen Wang, Lauren E. Van De Wal, Thelma Zaw, Brandon N. Vanderveen, Rodney Tatum, E. Angela Murphy, Yan-Hua Chen, Daping Fang, Melissa Ellermann, Jie Li

Faculty Publications

Correlative studies have linked human gut microbes to specific health conditions. Alistipes is one such microbial genus negatively linked to inflammatory bowel disease (IBD). However, the protective role of Alistipes in IBD is understudied, and the underlying molecular mechanisms remain unknown. In this study, colonization of Il10-deficient mice with Alistipes timonensis DSM 27924 delays colitis development. Colonization does not significantly alter the gut microbiome composition, but instead shifts the host plasma lipidome, increasing phosphatidic acids while decreasing triglycerides. Outer membrane vesicles (OMVs) derived from Alistipes are detected in the plasma of colonized mice, carrying potentially immunomodulatory metabolites into the …

House, Richard C. Crepeau

On Sport and Society

With the settlement in the House Case finally being accepted by U.S. District Judge Claudia Wilken, five years of litigation has come to a close. It might be tempting to say, “the other shoe has dropped.” Unfortunately, College Athletics is not a biped, but rather a centipede. It is likely then that hundreds of more shoes are yet to drop.

Hollow Choices: The Choice Neighborhood Initiative (Cni) And The Performance Of Participation, Lena Kufferman

Geography Undergraduate Senior Theses

Since HUD Secretary Henry Cisneros' pledge in 1995 to “end public housing as we know it, ” the United States has seen the rapid depletion of public housing stock. Alongside this mass demolition, a new redevelopment paradigm emerged: a community-oriented planning model that requires resident participation. HUD’ s shift toward participatory planning began with HOPE VI in 1992, which sought private investment to demolish public housing, and was formalized in 2010 through the Choice Neighborhoods Initiative (CNI). This thesis examines a CNI planning phase—a stage overlooked in existing scholarship, which largely stresses post-occupancy outcomes like displacement, (im)mobility, socioeconomic integration, and …

Adolescent Preventive Care Outcomes Before And After Covid-19 Onset: What Is The Role Of Telehealth?, Sarah Hayden Knipper

Dissertations and Theses

Adolescents are a developmentally distinctive population with unique primary health care needs; they comprise about 10% of Oregon's population and more than half are covered by the Oregon Health Plan (OHP). This dissertation investigated significant declines in preventive care utilization (well visits and HPV immunizations) among adolescents enrolled in OHP during the COVID-19 pandemic and the relationship between the decline in utilization and the rise in telehealth availability. The study focused specifically on the role of race/ethnicity, geography, and access to health systems in mitigating or exacerbating decreases in preventive care. A mixed methods approach was employed to understand not …

Cogniti Project: Ai-Augmented Teaching And Learning, Colin N. Webber Dr

Staff Scholarship - Australia & Dubai

The presentation explores two use-cases for custom AI agents in classrooms, notably a reflective practice trainer and a role-play agent with a "neurodiverse persona". "Ralph" and "Blue" were developed by the author to introduce concepts of AI as collaborator rather than "answer machine".

The Idea Of Ethiopia: Heritage Tourism In The Land Of Origins, Hosaena T. Tilahun

Geography Undergraduate Senior Theses

Hosaena Tilahun's "The Idea of Ethiopia" explores how heritage tourism in Addis Ababa cultivates Ethiopian patriotism and exceptionalism. Through an in-depth, close reading of the National Museum of Ethiopia, Unity Park, and the Oromo Cultural Center, supplemented by observations at the Red Terror Memorial Museum and Dergue Prison, Tilahun examines how heritage sites shape the political memory of national resistance, revolution, and Black internationalist thought. Tilahun discovers omissions of Menelik II's role in the Red Sea Slave network, encountering museum and archival silences about the internal conquest of peoples peripheral to the northern Abyssinian empire. As these heritage site renovations …

Edc 3100 Social Science In Childhood Education Spring 2025 Syllabus, Ivana Espinet

Open Educational Resources

This course is designed to provide students with an introduction to the standards, curricula, and methods of teaching social studies in a childhood setting. The students will learn pedagogical strategies and develop critical thinking skills concerning curriculum content and the creation and implementation of classroom activities.

Structural Analysis Of The Aileu Metamorphic Complex And The Laclo Fault Of Timor Leste, Banda Arc-Continent Collision, Emma C. Morrison

Theses and Dissertations

This study presents a structural analysis of the brittle and ductile features within the Aileu Metamorphic Complex of Timor Leste, located in the active Banda Arc–Australian continental collision zone. The deformation history of the complex is interpreted from the Permian–Jurassic deposition of sediments and basalts into intra-arc basins of Gondwana, through to the present- day collision of the Australian continental margin. This collision led to the development of the Wetar Suture and subsequent back-thrusting of the Aileu metamorphic rocks northward over the Banda forearc. Field evidence confirms that the Laclo Fault is currently active, with the most recent movement exhibiting …

The Impact Of Hazard Naming In Wireless Emergency Alerts: Enhancing Protective Action Decision Making And Organizational Attitudes, Micki Olson, Hugh Walpole, Jeannette Sutton, Lauren B. Cain, Nicholas Waugh

Emergency Preparedness, Homeland Security, and Cybersecurity Faculty Scholarship

Wireless Emergency Alerts are an important way people learn about impending threats. Yet, these messages typically lack information about the hazard that will endanger people. In this study, we examine how naming the hazard and its associated cues in a Wireless Emergency Alert influences people’s perceptions that help them make protective action decisions, including understanding, belief, personalization, deciding, response efficacy, and self-efficacy. We also measure the extent to which naming the hazard and its cues affects an organization’s reputation and perceived transparency. To do so, we conduct a 2 (message type: named hazard vs. unnamed hazard) × 3 (hazard type: …

How Transitioning Autistic Adults Consciously Perform Neurotypical Communication, Makenna J. Allred

Theses and Dissertations

Using semi-structured interviews this research explored the experiences of transitioning autistic adults with online communication. Participants shared information about navigating online communication, highlighting specific challenges such as interpreting tone and sarcasm, managing unspoken social norms, like emoji use, and responding to ambiguous or unexpected interactions. Participants shared that misunderstandings do occur in their online communication and how they recognize those miscommunications and strategize around preventing and mitigating them. These findings reveal that while computer-mediated communication offers opportunities for connection, it also presents unique obstacles that can exacerbate feelings of frustration due to miscommunications or misunderstandings. To prevent these social frictions …

Holistic Student Discipline: How A Proactive Empathetic Approach To Discipline Combined With Restorative Practices Can Change The Discipline Landscape, Melissa A. Dunworth

Education Dissertations

Student discipline in the United States consists of a myriad of methods, including suspension, corporal punishment, isolation, seclusion, and restraint. Since the onset of COVID-19, students and staff have experienced an increase in trauma which has impacted the social-emotional skills of students and teacher burnout. Post-COVID student discipline requires a different approach to discipline combined with restorative practices, which can alter the discipline landscape. This qualitative case study investigates the impact of proactive empathetic discipline and Restorative Practices on student discipline, executive functioning, and school culture.

Grounded in Social Learning Theory, Self-Regulation Theory, and Respect for Children, this study examines …

Rethinking “Key-Chain Swap” And Other Decontextualized Algorithm Teaching Practices For Rational Number Learners, Connor B. Desai

Education Dissertations

Mathematical literacy is critical in an increasingly data-driven society, yet many students struggle with rational number concepts due to the prevalence of decontextualized algorithmic instruction. This study investigates the impact of targeted professional development (PD) on sixth-grade teachers’ instructional strategies and their students’ rational number achievement. The research examines whether explicit, conceptually grounded teaching of rational number operations improves student understanding compared to traditional algorithm-based instruction. Using a mixed-methods approach, the study collected quantitative and qualitative data from students at two middle schools. The intervention was statistically significant at School A, where students in the intervention group demonstrated greater achievement …

Perchlorate Brine Formation From Frost At The Viking 2 Landing Site, Vincent F. Chevrier

Geosciences Faculty Publications and Presentations

The presence and stability of brines on Mars’s surface remain a significant mystery in planetary exploration. Previous mechanisms proposed for brine formation include melting of ice-salt mixtures and salt deliquescence. However, melting lacks a recharge mechanism, and deliquescence is impeded by Mars’s extreme surface aridity. This study explores an underexplored process: the role of seasonal frost in brine formation. Utilizing meteorological data from the Viking 2 lander—the only mission, with Phoenix, to observe in situ water frost formation—I demonstrate that brines can form over approximately 30 sols at the end of winter as frost sublimates. The stable brines exhibit a …

A Veblenian Approach To Chaos Theory, Isaiah Henry

Hatfield Graduate Journal of Public Affairs

This paper provides a comparative analysis of Veblen's belief in disequilibrium, the field of chaos theory, and how these two frameworks connect. We explore the similarities and differences between Veblen's theories and the principles of chaos theory, including their shared emphasis on complexity and unpredictability. By analyzing the connections between Veblen's economic theories and chaos theory, we can gain a deeper understanding of the nature of disequilibrium and the complex forces that shape our world.

Introduction To Clinical Psychology Syllabus (Psych 347), Valentina Nikulina

Open Educational Resources

No abstract provided.

Olfaction And Plasma Biomarkers Of Alzheimer Disease And Neurodegeneration In The Atherosclerosis Risk In Communities Study, Srishti Shrestha, Xiaoqian Zhu, Michael E Griswold, Priya Palta, Kevin J Sullivan, Honglei Chen, Andrea Lauren Christman Schneider, Abhay Moghekar, Megan L Grove, Bharat Thyagarajan, James Russell Pike, Rebecca F Gottesman, B Gwen Windham, Thomas H Mosley, Jennifer A Deal, Vidyulata Kamath

Faculty, Staff and Student Publications

Background and objectives: Investigation of olfactory impairment, an early manifestation of Alzheimer disease (AD), in relation to plasma biomarkers of AD and neurodegeneration could provide insights into the disease's pathophysiology. Because few such studies based on large, diverse, community-based populations exist, we investigated associations of odor identification ability with plasma biomarkers of AD and other neurodegenerative pathologies in community-dwelling Black and White older adults.

Methods: This cross-sectional investigation included participants from the Atherosclerosis Risk in Communities study who attended visit 5 (2011-2013) and who completed olfactory testing and brain MRI examinations and had plasma biomarkers measured (namely, amyloid-beta [Aβ]42/Aβ40 ratio, …

Enhancing Dementia Classification For Diverse Demographic Groups: Using Vision Transformer-Based Continuous Scoring Of Clock Drawing Tests., Mengyao Hu, Yi Lu Murphey, Tian Qin, Edmundo R Melipillán, Laura B Zahodne, Richard Gonzalez, Vicki A Freedman

Faculty, Staff and Student Publications

Objectives: Alzheimer's disease and related dementias significantly affect older adults' quality of life. The clock-drawing test (CDT) is a widely used dementia screening tool due to its ease of administration and effectiveness. However, manual CDT-coding in large-scale studies can be time-intensive and prone to coding errors and is typically limited to ordinal responses. In this study, we developed a continuous CDT score using a deep learning neural network (DLNN) and evaluated its ability to classify participants as having dementia or not.

Methods: Using a nationally representative sample of older adults from the National Health and Aging Trends Study (NHATS), we …

The Mediating Role Of Intellectual Humility On The Relationship Between Perspective-Taking And Affective Polarization, Daniel Smith

Walden Dissertations and Doctoral Studies

Affective polarization, a phenomenon characterized by animosity between opposing political parties, has emerged as a growing and intractable problem in the United States. Affective polarization threatens American democracy, as polarized citizens become increasingly unwilling to trust cross-partisans, hold their political leaders accountable, or support the results of free and fair elections. While prior research has investigated the mitigating effect of intellectual humility and perspective-taking on affective polarization, researchers have yet to investigate whether intellectual humility and perspective-taking work synergistically to mitigate affective polarization. Informed by social identity theory, this quantitative study determined if intellectual humility mediated the relationship between perspective-taking …

Sickle Cell Disease Induces Chromatin Introversion And Ferroptosis In Cd8+ T Cells To Suppress Anti-Tumor Immunity, Zilong Zhao, Benxia Hu, Yalan Deng, Melinda Soeung, Jun Yao, Lanxin Bei, Yaohua Zhang, Pengju Gong, Lisa A Huang, Zhou Jiang, Jian Gao, Shuang Peng, Tina K Nguyen, Menuka Karki, Bora Lim, Cassian Yee, Jared K Burks, Qing Zhang, Li Ma, Jianjun Gao, Nizar M Tannir, Leng Han, Dihua Yu, Linghua Wang, Michael A Curran, Maria A Gubbiotti, Giannicola Genovese, Boyi Gan, Wenbo Li, Pavlos Msaouel, Liuqing Yang, Chunru Lin

Faculty, Staff and Student Publications

Understanding how genetic disorders affect CD8+ T cells in the tumor microenvironment is key to improving cancer immunotherapy. Individuals with sickle cell disease (SCD), the most prevalent inherited blood disorder, have a higher risk of developing certain cancers than the general population, but the mechanisms driving this increased risk remain unclear. Our study revealed that SCD altered CD8+ T cell 3D genome architecture, triggering ferroptosis and weakening anti-tumor immunity, thereby promoting tumor growth. Using murine and humanized SCD models, we found that disrupted chromosomal interactions in CD8+ T cells reduced the expression of anti-ferroptotic genes, including SLC7A11 and hydrogen sulfide …

Optimized Genomic Editing Of A Common Duchenne Muscular Dystrophy Mutation In Patient-Derived Muscle Cells And A New Humanized Mouse Model, Mateusz Z Durbacz, Yu Zhang, Hui Li, Takahiko Nishiyama, Efrain Sanchez- Ortiz, John R Mcanally, Damir Alzhanov, Ning Liu, Eric N Olson

Faculty, Staff and Student Publications

Duchenne muscular dystrophy (DMD) is a fatal X-linked, recessive disease caused by mutations in the DMD gene encoding dystrophin, a membrane-associated protein necessary for maintaining muscle structure and function. One of the common DMD mutations is the deletion of exon 52 (Δ52), which introduces a premature stop codon in exon 53, preventing the expression of functional dystrophin protein. Patients with this mutation could benefit from skipping or reframing exon 53 to restore the dystrophin open reading frame. In this study, we investigated the efficacy of single-cut CRISPR gene editing with Staphylococcus pyogenes Cas9 (SpCas9)-LRVQR to restore dystrophin expression …

Toward Culturally Responsive Interpretation: Native American Histories, Lifeways, And Ways Of Knowing At The High Desert Museum, Carol Fitzsimmons, Ajena Cason Rogers

Dissertations

Many public museums and historic institutions reflect settler colonial culture and are primarily non-Native led. Although these institutions are trusted, many have perpetuated cultural harm through the theft of belongings, the misrepresentation of stories and histories, and the inaccurate portrayals of cultural content. When interpreting Native American experiences, many non-Native institutions struggle to co-create culturally responsive interpretation. The purpose of this basic qualitative study was to apply the four-truth framework, developed by the South African Truth and Reconciliation Commission, to better understand how the High Desert Museum approached the interpretation of Native American content and stories and to explore how …

Modeling And Simulation Of Tensegrity Structures With Continuous Cables, Austin R. Brown

Theses and Dissertations

This thesis presents a novel approach for modeling and simulating tensegrity structures with continuous cables. A Python-based simulation framework package was developed to address limitations in existing tensegrity modeling software, particularly the inability to model cables passing through multiple nodes. The framework utilizes virtual work methods to solve for equilibrium configurations of 2D, 2.5D and 3D tensegrity systems. Key features include: • A YAML-based input system for easy definition of tensegrity topologies. • Algorithms for handling continuous cables spanning multiple nodes. • Optimization techniques to find stable equilibrium states. • Capability to simulate 2.5D structures wrapped around cylindrical surfaces. • …

Exploring The Feasibility Of Using Virtual Reality With Children With Autism, Gemma Leighton

Theses and Dissertations

This study explored the feasibility and social validity of teenagers with autism spectrum disorder (ASD) using a virtual reality (VR) head-mounted display (HMD). VR is emerging as a promising tool for teaching and therapeutic intervention among ASD. Therefore, this study serves to contribute to the field's development by comprehensively evaluating the accessibility for young people with ASD to independently using a VR HMD in a meaningful way. Five teenagers participated (four female, aged 13-15, with mild and mild to moderate support needs) and independently completed tutorials in a virtual environment when learning to operate the VR HMD controllers and hand-tracking …

Semitic Root Encoding: Tokenization Based On The Templatic Morphology Of Semitic Languages In Nmt, Brendan T. Hatch

Theses and Dissertations

The morphological structure of Semitic languages like Arabic and Hebrew is based on non-concatenative roots and templates. This complex word structure used by humans is obscured to neural models that use traditional tokenization algorithms. In this work, I present and evaluate Semitic Root Encoding (SRE), a tokenization method that represents Semitic words with distinct root and template stem tokens, and apply it to neural machine translation (NMT). I evaluate whether tokenization with the SRE method leads to increases in translation quality, whether it allows NMT models to hypothesize unseen word forms needed at inference, and how impervious resulting NMT models …

Application Of Claims-Based Frailty Index To A Structured Electronic Health Record Data, Min Ji Kwak, Caroline Schaefer, Youngran Kim, Sunyang Fu, Chan Mi Park, Abhijeet Dhoble, Nahid Rianon, Holly M Holmes, Dae Hyun Kim

Faculty, Staff and Student Publications

Background: The Claims-based Frailty Index (CFI) has been developed and validated using Medicare claims data. However, whether CFI can be applied to structured electronic health record data has not been studied.

Methods: We applied the CFI to a structured electronic health record dataset (Explorys dataset) and a Medicare fee-for-service 5% sample data and compared the prevalence of frailty from each dataset, using the cohort of older adults. Then, we assessed the odds ratio and area under the curve of the frailty predicting adverse clinical outcomes, any hospital or emergency room visit, or any adverse drug events related encounter within 1 …

Role Of Autonomic Dysfunction In Initiating Postoperative Atrial Fibrillation In A Canine Sterile Pericarditis Model, Seungyup Lee, Don W. Wallick, Celeen Khrestian, Dragan Juzbasich, Daniel Laurita

Faculty Scholarship

Background: Autonomic dysfunction plays a significant role in initiating postoperative atrial fibrillation (POAF) by causing atrial ectopic triggers, potentially through mechanisms such as increased sympathetic activity and altered vagal tone. These atrial ectopic triggers can easily induce POAF, especially in the presence of vulnerable substrates such as pericardial inflammation or structural remodeling. Objective: To test the hypothesis that autonomic dysfunction causes atrial ectopic triggers or POAF in the canine sterile pericarditis model. Methods: Ten sterile pericarditis dogs were studied on postoperative Days 2−3. Autonomic dysfunction was induced by stellate ganglion nerve stimulation (SNS, 5–15 mA; 4–10 Hz; pulse width 0.5–5 …

Symbiotic International Law: Combatting Uyghur Forced Labor, Preston Jordan Lim

Faculty Publications

Since 2017, the Chinese government has launched a campaign of repression against the Muslim Turkic minorities of Xinjiang, a region located in China’s Northwest. While most scholars have focused on the mass internment of Uyghurs and other minorities, this Article highlights an under-discussed aspect of China’s campaign: the construction of a sophisticated forced labor system. Minority forced labor supplies key sectors of the global economy—from the automotive to the energy sectors—and allows Chinese companies to outcompete foreign firms. The unprecedented scope and sophistication of what I term the “modern Xinjiang forced labor system” imperils the very future of the international …

One Health Integration To Control And Prevent Zoonoses: Application Of Organizational Theory Literature, Lisset M. Dumet Poma, Sherril Gelmon, Julia M. Goodman, Seth E. O’Neal

Hatfield Graduate Journal of Public Affairs

Zoonoses are infectious diseases transmitted between animals and people that disproportionately affect low- and middle-income countries (LMICs). The One Health (OH) approach aims to integrate systems, incentivizing collaboration among animal, human, and environmental systems to address zoonoses and improve health. Innovative solutions for effectively and sustainably achieving systems integration are needed. Organizational theories can facilitate the study of the context of OH implementation, applying comprehensive approaches that recognize the interconnections among organisms, the environment, and social systems, including the diverse entities needing integration (e.g., policy, community, public organizations). This narrative review examines organization and systems literature to provide recommendations for …