Digital Commons Network^™

Hydrosocial Ocean Commons: Offshore Wind Energy In Oregon, Bryce Ashlyn Sprauer

Dissertations and Theses

The ocean has been culturally and legally conceptualized as a commons, a space of subsistence inherited by all. Enclosure or privatization creates overlapping jurisdictions of ocean space. The ocean is also the world's most significant carbon capture, absorbing billions of tons of anthropogenic carbon dioxide since the Industrial Revolution. Now, the ocean offers an additional opportunity to decarbonize energy production and reduce greenhouse gas emissions through 'new frontiers' of offshore wind technology; however, this potential is entangled within neoliberalism. Offshore wind is entering a fragmented legal landscape where the social-legal process of ocean jurisdiction remains contested. As the "new frontier" …

Adapting To Southwest Idaho's Shifting Wildfire Regime: Sustainable Collaboration As A Means To Socioecological Resilience, Olivia Awbrey

Dissertations and Theses

Community wildfire adaptation is happening at multiple scales across the western United States. A range of collaboratively formed groups have addressed compounding issues related to wildfire risk, forest health and land use. In Southwestern Idaho, place-based collaboratives emerging in the early 2000s have considered trade-offs between localized social and ecological needs as they approach wildfire adaptation from the bottom-up. More recently, regional partnerships have emerged that emphasize cross-boundary wildfire risk reduction to cover larger geographic areas for risk mitigation. In between these micro- and macro-scales of activity exist bridging agencies such as county and state-level programs that account for gaps …

Free-Running Ring Oscillators For Crystal-Free Communication Systems: Design, Simulation Challenges, And Frequency Stability Improvements, Haziq Rohail

Dissertations and Theses

This thesis presents techniques for enhancing the frequency stability of ring oscillators (ROs) for crystal-free wireless communication systems. The first major contribution is a tutorial-style study of frequency stability metrics, providing clear definitions, conversions methods, and comparative analysis of commonly used figures of merit such as phase noise, Allan deviation, and jitter. The second contribution addresses the challenges of simulating phase noise in free-running ROs. Key techniques including Periodic Steady-State Noise (PNoise), Harmonic Balance Noise (HBNoise), and transient noise analysis are evaluated in terms of accuracy, convergence behavior, and simulation runtime. Based on these results, practical guidelines are offered for …

Quantum Pseudorandom Primitives Beyond Pseudorandom States, Chuhan Lu

Dissertations and Theses

Quantum pseudorandomness is an emerging research area. Ji, Liu, and Song defined pseudorandom states (PRSs) and pseudorandom unitaries (PRUs) as quantum analogs of pseudorandom generators and pseudorandom functions. A unitary oracle separation result between one-way functions and PRSs/PRUs, established by Kretschmer, suggests that certain quantum primitives may remain secure even if classical cryptography is compromised. This insight has spurred extensive work on quantum pseudorandomness and its applications in quantum cryptography.

Many constructions of PRSs have been established under standard assumptions, yet building a secure PRU was a long-standing open problem. This dissertation aims to narrow the gap between PRSs and …

Capturing Processes Of Influence In Students' Social Interactions: Examining A Two-Part Strategy To Detect Patterns Of Reinforcement In Continuous Real-Time Observations In The Classroom, James Lamar Delaney Iii

Dissertations and Theses

Students' active engagement in learning activities is presumed to be influenced by their interactions with social partners in the classroom setting, like teachers and peers. For instance, statements of support or affirmation from teachers or peer group members are assumed to encourage positive behaviors for struggling students, while statements of disapproval are assumed to discourage and undermine active classroom behaviors. Extant research examining these processes typically tries to demonstrate significant interaction patterns or show influence over time by way of indirect behavioral measures, such as survey-based assessments. It is an open question whether these processes of influence can be directly …

Ecological Drivers And Temporal Dynamics Of Daphnia In A Diverse Environmental And Spatial Landscape, Crysta A. Gantz

Dissertations and Theses

In the modern era, commonly referred to as the Anthropocene, human-caused changes to the environment are prevalent and complex. The study of impacts to biodiversity and ecosystem functioning requires multi-faceted approaches that encompass scales of organization from genes to ecosystems. It is often difficult to tease apart whether species responses to environmental change are due to phenotypic plasticity or genotypic variation. Therefore, it is important to try to understand where variation originated, that is, to link a phenotypic response to a genetic change or to gauge whether the response is from the environment. In addition, neutral genetic variation arising from …

Evaluation Of Fano Resonance In Silver Nanotriangles And Complementary Triangular Apertures For Enhanced Refractive Index Sensing, Nabila Islam

Dissertations and Theses

This thesis presents a detailed investigation of plasmonic sensors based on silver (Ag) nanotriangles, focusing on the interaction of plasmonic mode with waveguide modes to achieve Fano resonance for enhanced refractive index sensitivity. For this purpose, Ag nanotriangles were chemically synthesized and were on indium tin oxide (ITO)-coated glass. The samples were illuminated with laser light of various wavelengths and polarization to excite surface plasmon in the nanotriangle. Observation and characterization of their plasmonic behavior was done experimentally using Photoemission Electron Microscopy (PEEM). Numerical simulations using the Finite Element Method (FEM) were performed that agreed with these experimental results and …

Design And Evaluation Of An Electromagnetic Band Gap Structure For Self-Interference Reduction In Mmwave Full-Duplex Systems, Adewale Kehinde Oladeinde

Dissertations and Theses

Full-duplex (FD) wireless is a new technology that allows a device to transmit and receive at the same time and on the same frequency band. It has the potential to double the capacity and spectral efficiency of a wireless link compared to the family of conventional half-duplex wireless systems. The key challenge in implementing FD wireless communication is self-interference (SI): a node's transmitting signal generates significant interference to its receiver. Several previous studies have demonstrated the potential to reduce SI and develop FD radios; however, these studies are mostly limited to sub-6 GHz systems. Previous and on-going research explored various …

Cinematic Empathy: Autistic Interpretation Of Social Cues In Narrative Film, Lux Gomez

University Honors Theses

From research and lived experience we can see a pattern of Autistic people engaging and forming connection with emotional narratives in media, despite stereotypes suggesting they lack empathy or theory of mind. This mixed-methods study sought to lay the groundwork and start preliminary investigation into how film’s structured formal elements may facilitate autistic viewers’ interpretation of social cues that typically challenge autistic-allistic (nonautistic) communication in real life. A sample of 22 participants (13 autistic, 9 allistic) viewed five film scenes depicting lying, flirting, sarcasm, exposition, and flat affect and completed a survey. Both quantitative and qualitative data were analyzed. While …

Defining Antisemitism Or Activism?: An Analysis Of Congressional Debate Over The Antisemitism Awareness Act Of 2023, John Carpenter

University Honors Theses

Introduced amid widespread campus protests against the Israeli militarys actions in the Gaza Strip, the Antisemitism Awareness Act of 2023 (AAA) directs the Department of Education to consider the International Holocaust Remembrance Alliance (IHRA) definition of antisemitism during investigations of potential discrimination under Title VI of the Civil Rights Act. This study investigates congressional debate on the AAA using the Discourse Historical Approach to Critical Discourse Analysis to assess how members of Congress portray the victims and perpetrators of antisemitism and whether these portrayals align with the stated aim to "improve safety and security for Jewish Communities." Findings reveal that …

Optimizing Boys' Motivation Over The Transition To Middle School: A Pattern-Centered Approach To Identifying Boys' Profiles Of Engagement And The Interpersonal Resources Important In Supporting Optimal Engagement Of Boys Across Sixth Grade, Brandy Anne Brennan

Dissertations and Theses

There are normative declines in student engagement during the transition to middle school, and studies indicate that these challenges may be especially problematic for boys. Given the limited empirical evidence offering ways to support boys' motivation, the main goal of this study was to understand ways we can help boys reach their full potential over the transition to middle school by examining the interpersonal resources from parents, teachers, and peers that sustain boys' optimal engagement across the first year of middle school. Using data from an existing longitudinal dataset of 191 sixth-grade boys (N = 366; 52% male) in …

Ronald E. Mcnair Research Symposium Presentation Schedule 2025, Mcnair Scholars Program

McNair Symposium

This is the presentation schedule for the 23rd Undergraduate Ronald E. McNair Research Symposium 2025.

Charting New Territory: Ai Applications In Dental Caries Detection From Panoramic Imaging., Man Hung, Daniel Yevseyevich, Milan Khazana, Connor Schwartz, Martin S. Lipsky

Institute on Aging Publications

Dental caries remains a public health concern, and early detection prevents its progression and complications. Panoramic radiographs are essential diagnostic tools, yet the interpretation of panoramic X-rays varies among practitioners. Artificial intelligence (AI) presents a promising approach to enhance diagnostic accuracy in detecting dental caries. This scoping review examines the current literature on the use of AI programs to analyze panoramic radiographs for the diagnosis of dental caries. This scoping review searched PubMed, Scopus, Web of Science, and Dentistry and Oral Sciences Source, adhering to PRISMA guidelines. The review included peer-reviewed, original research published in English that investigated the use …

Trauma-Born Generations And Intergenerational Conflict: A Study Of Tensions In The Contemporary South Korean, Daihyun Kim

Dissertations and Theses

This paper analyzes how traumatic events that have been repeated in modern Korean history have affected each generation's identity and emotional structure, and how intergenerational conflicts arise, are structured, and reproduced. This study divides the groups of people born in the period from "The Liberation" in 1945 to 2025 into four generations: the Industrialization Generation, the Democratization Generation, the Capitalist Generation, and the Isolation Generation. Each generation has remembered major historical events such as the Korean War, the Gwangju Democratization Movement, the IMF foreign exchange crisis, the Sewol ferry and the Itaewon disaster in a unique way, thereby forming an …

Voice As A Biomarker: Exploratory Analysis For Benign And Malignant Vocal Fold Lesions, Phillip Jenkins, Rylan Harrison, Steven Bedrick, Lisa Karstens, Bridge2ai-Voice Consortium

Mathematics and Statistics Faculty Publications and Presentations

Benign and malignant vocal fold lesions can alter voice quality and lead to significant morbidity or, in the case of malignancy, mortality. Early, noninvasive identification of these lesions using voice as a biomarker may improve diagnostic access and outcomes. In this study, we analyzed data from the initial release of the Bridge2AI-Voice dataset to evaluate which acoustic features best distinguish laryngeal cancer and benign vocal fold lesions from other vocal pathologies and healthy voice function. Seven diagnostic cohorts were grouped into two analyses: the first included participants with laryngeal cancer, benign lesions, or no voice disorder; the second included those …

Urban Wildlife In Your Backyard: Community Experiences With Coyotes And Outdoor Cats, Clarissa Emma Cressotti

Dissertations and Theses

Urbanization reshapes ecological processes by fragmenting habitat and altering patterns of human-wildlife interaction, often reducing biodiversity. However, at the household scale, residential yards can either enhance or inhibit ecological connectivity - functioning as informal habitat stepping stones or barriers to wildlife. This thesis examines how residents' environmental attitudes, wildlife experiences, and socio-demographic characteristics influence yard-level behaviors and shape the presence of urban-adapted wildlife species, particularly coyotes and domestic cats, across the Portland, Oregon metropolitan region. A mixed-methods, social-ecological framework guided the analysis, integrating survey data from 244 households with wildlife detections from motion-triggered cameras (Urban Wildlife Information Network, UWIN), citizen …

Business Capstone Review: Analysis Of A Portland Based Chili Oil Company, Karlene Marrero

University Honors Theses

The paper is a review of the Portland State University's school of business senior capstone project. The team in this paper worked with a Portland based chili oil company for their project. There will first be an introduction to the capstone project then the paper will dive into two main sections that include a discussion of the capstone project experience and a reflection.

The First Thirty Years Of Green Stormwater Infrastructure In Portland, Oregon, Michaela Koucka, Cara Poor, Jordyn Wolfand, Heejun Chang, Vivek Shandas, Adrienne Aiona, Henry Stevens, Tim Kurtz, Svetlana Hedin, Steve Fancher, Joshua Lighthipe, Adam Zucker

Geography Faculty Publications and Presentations

Over the past 30 years, the City of Portland, Oregon, USA, has emerged as a national leader in green stormwater infrastructure (GSI). The initial impetus for implementing sustainable stormwater infrastructure in Portland stemmed from concerns about flooding and water quality in the city’s two major rivers, the Columbia and the Willamette. Heavy rainfall often led to combined sewer overflows, significantly polluting these waterways. A partial solution was the construction of “The Big Pipe” project, a large-scale stormwater containment system designed to filter and regulate overflow. However, Portland has taken a more comprehensive and long-term approach by integrating sustainable stormwater management …

More Than A Ramp: Rethinking School Design For Sensory And Cognitive Inclusion, Andrew Ho

University Honors Theses

This thesis advocates for the integration of the ASPECTSS framework, developed by Magda Mostafa, into legislative standards that would govern the design of educational environments that accommodate students with Autism Spectrum Disorder (ASD). Drawing on evidence from a case study demonstrating significant improvements in student behavior and overall satisfaction through ASPECTSS-based interventions, the thesis highlights the urgent need for these principles to move beyond voluntary adoption and rather, toward enforceable design mandates.

The ASPECTSS framework includes the seven following criterias; Acoustics, Spatial Sequencing, Escape Spaces, Compartmentalization, Transitions, Sensory Zoning, and Safety. This model provides a comprehensive and actionable approach to …

We Who Are Not Cared For: Social Death, The Lie Of Educational Equity, And A Radical Replanting Praxis, Chantell Wesley

University Honors Theses

This thesis examines how the concept of social death, as theorized by Orlando Patterson and expanded by Frank B. Wilderson III and Christina Sharpe, can serve as a transformative foundation for culturally informed care practices within academic institutions. Arguing that traditional equity efforts and even critical race interventions often fall short by focusing on reform within inherently anti-Black systems, I propose a new framework: Radical Replanting Praxis. Using the metaphor of education as a tree, this praxis calls for a shift in attention from reforming institutional "roots" to transforming the "soil"--the relational, ideological, and everyday conditions in which …

Emergence Of Norms In The Presence Of Social Network Structure In A Stochastic Evolutionary Game Theory Model, Parker Foresman

Dissertations and Theses

In their 2000 paper, The Emergence of Classes in a Multi-Agent Bargaining Model, Axtell, Epstein, and Young introduced an agent-based bargaining model to study how social norms can emerge and persist from the decentralized, asynchronous interactions of individual agents in the presence of noise, even when these agents have no predefined preferences or advantages. This thesis extends their model by incorporating structured interaction networks, allowing us to investigate how the topology of agent interactions influences long-run dynamics and norm formation. Using a custom simulation package built in the Julia programming language, we replicate the original results under a complete …

A Groundwater Flow System Investigation In The Upper Rowena Creek Drainage, Oregon, Catelee Yamei Kambur

Dissertations and Theses

Groundwater level declines are a growing concern within the upper Rowena Creek drainage, Oregon. This area is home to a small community located on the upper limb of the Columbia Hills anticline, where local residents rely on aquifers within the Columbia River Basalt Group (CRBG) for domestic water supplies. Groundwater level declines in CRBG aquifers have been studied more extensively in the Mosier area, which lies approximately 5 miles to the northwest of Rowena, but there has been little research conducted specifically on the upper Rowena Creek drainage area. Rowena is located higher up the dip of the Columbia Hills …

Assessing The Accessibility Of Queer Romance Book Covers As Digital Thumbnails: An Analysis Of Color Contrast, Colorblind Safety, And Typography Legibility, Madelynn Sare

Book Publishing Final Research Papers

This research investigates the digital accessibility of queer romance book covers displayed as thumbnails online, focusing on the balance between creative freedom, genre appeal, and inclusive cover design. Using a dataset of 100 highest-rated queer romance titles from Goodreads (2020–2024), the study evaluates accessibility by examining color contrast ratios against Web Content Accessibility Guidelines (WCAG) standards, assessing colorblind safe design with Adobe Color, and measuring typography legibility through a custom-developed scale. Findings reveal that many covers fall short of WCAG color contrast requirements, yet a majority are colorblind safe, indicating that relatively minor design adjustments can significantly improve digital accessibility …

Psilocybin And Death Anxiety: A Dual-Mechanism Approach To Existential Distress, Annabelle Swain

University Honors Theses

This literature review looks at how psilocybin, the active compound in "magic mushrooms," can help people deal with death anxiety; the deep fear of dying or losing control that shows up in lots of mental health struggles. While traditional treatments like SSRIs and talk therapy work for some people, they don't always get to the root of the problem. Psilocybin works differently. It changes brain activity, especially in networks tied to repetitive, self-focused thinking, as well as creates powerful, emotional experiences that help people rethink how they see life and death. This paper covers recent research showing how one or …

Guided Modes Through The Dual Perspectives Of Geometrical Optics And Wave Equation, Mason Spears

Mathematics and Statistics Undergraduate Departmental Honors Theses

In an optical waveguide, only finitely many electric field intensity profiles travel without loss, and these are aptly named guided modes. This paper uses fundamental concepts from the two paradigms of interpreting light, geometrical and physical optics, to derive guided modes axiomatically. First, basic principles of geometrical optics are demonstrated in a slab waveguide to explain characteristics of optical waveguides such as total internal reflection and numerical aperture. Dispersion curves are assembled from the same principles and used to show that only finitely many guided modes exist for a given waveguide. Next, Maxwell’s equations are used to derive the famous …

What's The Value Of A State? Accounting For The Ecosystem Services And Natural Capital Of Oregon, Kathryn Liebrecht

University Honors Theses

Ecosystem services are vital to human welfare and society, but often are overlooked when it comes to planning and setting policy. By neglecting to incorporate the benefits received from natural resources, policy makers may unknowingly be making decisions that harm the long term sustainability and use of these services. To highlight the importance of Oregon's ecosystems, the present study aims to provide a full accounting of the ecosystem services and natural capital of the state. Using data from the Institute for Natural Resources' updated Oregon statewide habitat map, Oregon's ecosystems were matched to biome categories from the Ecosystem Services Valuation …

An Exploration Of The Structure Of The Linear Algebraic Model Of Color, Isaac Martin

University Honors Theses

This thesis surveys the mathematical grounding of linear algebraic models of color. It aims to build from the ground up the framework by which additive color is broadly understood in the digital age. Primarily building on the work of Jozef Cohen, Eric Dubois, David H. Krantz, and Günter Wyszecki, it aims to chart the construction of a model of color that underpins most modern understandings of color. While the construction is certainly established in colorimetric circles, the construction is, in the thesis author's opinion, either obtuse or non-rigorous. Ideally, this thesis serves to make the construction accessible to an audience …

Small Molecule Inhibitor 3i-1000 Dosed During Bouts Of Anoxia Increases Survivability Of Austrofundulus Limnaeus Embryos, Connor Kime

University Honors Theses

The annual killifish Austrofundulus limnaeus possesses exceptional tolerance to prolonged anoxia, offering a unique vertebrate model for investigating cardiac resilience and survival under metabolic stress. This study tested whether inhibition of the GATA4–NKX2-5 transcriptional axis with the small molecule 3i-1000 enhances post-anoxic survival. WS40 embryos were exposed to 50 µM 3i-1000 during anoxia and early aerobic recovery. Outcomes were assessed across two independent experimental cohorts. Treated embryos exhibited higher survivability during reoxygenation: in the October cohort, survival increased from 76.0% in vehicle controls (n = 25) to 91.7% in treated embryos (n = 24); in the November cohort, survival improved …

Teaching With The Electronic Literature Collection Volume 4, Rui Torres, Kathi Inman Berens, Maria C. Zamora, Lyle Skains, John Murray

English Faculty Publications and Presentations

This article surveys the four ELCs – Electronic Literature Collections (2006- 2022), reviews pedagogical approaches to teaching ELCs, and situates ELCs and electronic literature pedagogy into higher education’s course management systems. ELCs’ increasing accessibility serves its global audience and centers the ethical values of diversity, equality, and inclusion. The ELC4’s user experience design manifests these values. The article discusses the history of the Collections’ experience design. Volume Four (2022) expanded reader accessibility and linguistic diversity by including video playthroughs and collecting 132 works from 42 author nationalities in 31 languages. This article surveys those evolving design changes. It engages a …

Book Review Of, New York City’S Beloved Owl, Talitha May

English Faculty Publications and Presentations

Review of: Jacqueline Emery and David Lei, Finding Flaco: Our Year with New York City’s Beloved Owl. Foreword by Ed Shanahan. Afterword by Rita McMahon. New York: Owls of New York, 2024. 224 pp. $50.00 (hb).