Digital Commons Network^™

An Exploration Of Holistic Admissions Protocol In Graduate School: Implications For Access And Equity, Kelly Doherty

Dissertations and Theses

Historically, graduate admissions policies at higher education institutions have heavily relied on standardized testing, which limits access to graduate and professional degrees for underrepresented demographic and gender groups. Recently, movements toward holistic graduate admissions processes and strengths-based evaluations of applicants have shown promise in equitably recruiting and admitting candidates. However, the field currently lacks common best practices and strategies for enhancing equity in the evaluation of applicant credentials. Furthermore, recent federal challenges to campus diversity and inclusion efforts have complicated these initiatives. To address these issues, this qualitative comparative case study examined five university graduate schools that are implementing holistic …

Enabling New Synthetic Platforms For Aryne Synthesis With Aryl Thianthrenium Reagents, Riley Augustus Roberts

Dissertations and Theses

The enormous importance of aromatic rings in organic molecules cannot be understated. Aromatic rings are present in the majority of pharmaceuticals, agrochemicals, and consumer products. The way in which these rings are arranged and substituted results in a molecule’s unique properties. Because of this, the current limitations of the chemical methods used to synthesize these molecules results in limited structural diversity and thus missed opportunities for the development of value-added products. To this end, this work demonstrates novel methods of aryne synthesis, aryl thianthrenium synthesis and a unique approach to structural scaffold hopping. The approaches presented herein allow for rapid …

Institutions, Indigenous Peoples, And The Structure Of Power In Columbia River Basin Salmon Governance, Christopher Michael Page

Dissertations and Theses

As broad patterns of behavior influenced by norms and rules, institutions structure many aspects of modern society through coordination and the distribution of power. Due to the importance of common-pool natural resources to many aspects of society, they usually involve competition and lie at the intersection of multiple institutions. This combination of institutions, power disparities, and a competitive interest is what scholars have referred to as a "field." Fields can be complex, and the coordination among interests is generally done through a form of governance involving a wide array of laws, regulations, and actors. When at least one of these …

Magma Evolution And Eruptive History Of Three Fingered Jack: A Mafic Composite Volcano In The Central High Cascades Of Oregon, Javaria Aziz

Dissertations and Theses

The central High Cascades graben in Oregon has been a center for mafic volcanism since its initiation. Three Fingered Jack is one of the larger mafic composite cones in the graben, located 20km south of Mount Jefferson. Three Fingered Jack erupted between 142.1 - 150.8ka, based on Ar⁴⁰/Ar³⁹ age dates. This study provides stratigraphic, compositional and petrographic evidence to understand the eruptive history of Three Fingered Jack and the processes involved in generating compositionally diverse basaltic andesites here.

The basaltic andesites of Three Fingered Jack show three compositional trends of magma evolution: 1) enrichment, 2) depletion and …

"Significant Bodily Intrusions": Investigations Into Law Enforcement Phlebotomy, Anne Kathleen Johnson

Dissertations and Theses

This three-paper dissertation explores law enforcement phlebotomy, the ability of law enforcement officers to draw blood. Phlebotomy is both a ubiquitous, invasive diagnostic tool as well as a social site with complex relational dynamics at play between phlebotomist and patient. Through law enforcement phlebotomy, the blood draw is co-opted from the medical field into the policing field, and the normative framework through which it is used changes: whereas medical edicts instruct providers to work with patients through an ethics of care--respecting consent and refusal--policing is not similarly bound, instead operating through a prioritization of security and efficiency. In the articles …

Experiences Of Support And Success For Students Of Color In The Midwifery Educational Setting, Laura Jenson

Dissertations and Theses

The United States spends more on healthcare than any other developed country, yet perinatal health outcomes are among the worst, particularly for Black and Indigenous pregnant women and people. Structural and societal racism has contributed greatly to these inequities, and while a diverse perinatal healthcare workforce has the potential to mitigate the impact of pervasive racism, professions such as nurse-midwifery have evolved over time to be predominately white. The purpose of this study is to explore how students of color experience support and apply personal strategies for success in the midwifery educational setting. A basic qualitative study was done using …

Weak Formulation For Solving Inverse Problems In Reproducing Kernel Hilbert Spaces (With Applications To Learning Dynamical Systems), Victor William Rielly

Dissertations and Theses

We combine numerical and machine learning techniques to present a general framework for solving inverse problems using vector valued reproducing kernel Hilbert spaces in a variational formulation. We present this framework in two papers. In the first paper, we present an original state-of-the-art method derived in the context of our general framework for learning dynamical systems. In the second paper, we generalize the method from our first paper to arrive at the framework for solving inverse problems. Then we apply our general framework to the task of learning dynamical systems. In both papers we consider numerous applications of our methods …

The New Normal: A Qualitative Study Exploring The Experiences Of Today's Academic Nursing Faculty, Lisa R. Scott

Dissertations and Theses

There is a long-standing shortage of academic nursing faculty. This shortage limits the ability of nursing colleges to expand student enrollment, creating a barrier to addressing the nation’s need for well-trained nurses. Despite decades of targeted interventions, the faculty shortage remains a pressing challenge for nursing education and the broader healthcare system. This qualitative study examined the lived experiences of academic nursing faculty navigating dynamic educational and healthcare landscapes. Drawing on semi-structured interviews with 12 full-time, doctorally-prepared faculty members with at least six years of experience, the study explored how participants responded to rapid technological advancements, increasing diversity, the long-term …

When My Intersecting Identities Of Being Racially Oppressed And Privileged Become Blurred: An Autoethnographic Dive Into Unlocking The Polarities Of Who I Am, Susan Acosta

Dissertations and Theses

Freire argued that each person is, at times, both the oppressor and the oppressed. He posited that the path to liberation is increased critical consciousness, problematizing our circumstances, and finding ways to take action. As a person from the global majority (PGM), this autoethnography incorporates my personal narratives, communication with colleagues, photo observations, and professional writings that problematizes and examines ways I have been both complicit in, or have been victimized by, racialized oppression, particularly in educational settings. I've had an increasingly keen sense of awareness toward my own racialized tensions when interacting with individuals, in groups, or with an …

Estimated Amounts Of Terrestrial Carbon Mobilized And Sequestered By The 1980 Mount St. Helens Eruption, Washington State, Usa, Lizzet G. Reyes

Dissertations and Theses

Volcanic eruptions significantly influence the geologic carbon cycle by emitting CO₂ and mobilizing terrestrial carbon pools. The 1980 Mount St. Helens (MSH) eruption offers a unique case study, triggering a massive landslide that displaced 2.7 km³ of sediment, buried 600 km² of forest, and disrupted regional carbon dynamics. Pre-eruption terrestrial carbon stocks, including aboveground biomass (AGB), dead biomass (D), and soil organic carbon (S), averaged 209.5 tC/ha. Post-eruption, total carbon density fell to 118.7 tC/ha, driven mainly by a 51% reduction in AGB, modest declines in D, and redistribution of S. Over 36 years, ecosystem recovery increased …

The Geologic History Of The Chehalis Forearc Basin, Washington State, Usa, Rud Lamb Moe

Dissertations and Theses

The Chehalis Basin, in southwest Washington, is one of a series of forearc basins between the Cascade Arc and the Coast Range in the Pacific Northwest. While the Seattle basin to the north, and the Portland-Tualatin basins to the south are both relatively well studied, the geologic evolution of basins in between is poorly constrained. The Chehalis basin is underlain by accreted Eocene oceanic basalt of the Crescent Formation. The basin fill consists of sedimentary rocks and volcanic rocks deposited throughout the Cenozoic. It has undergone N-S shortening driven by transpressional stress from oblique subduction of the Juan de Fuca …

Development Scenarios And Wildfire Risk In Central Oregon, Samantha Hall

Dissertations and Theses

Risk from natural hazards occurs where areas vulnerable to natural hazards and development intersect. Development in vulnerable areas is a societal choice that has a lasting impact as our built environment is relatively permanent. Development patterns that contribute to increased wildfire risk mostly occur within the wildland urban interface, a land use type where development is at the fringes or intercept of wildland areas and is more flammable due to surrounding vegetation, slope, local climate, and other factors. To understand how past and future development potentials may impact fire risk in wildfire prone areas, a case study of Deschutes County, …

The Effects Of School Safety Strategies On K-12 Schools: Armed Civilians, School Resource Officers, And Metal Detectors As Contributors To The School-To-Prison Pipeline, Rebeca Petean

Dissertations and Theses

In recent decades, K-12 public schools have introduced get-tough measures ostensibly to improve school safety through punitive responses to misconduct and delinquency--expanding from traditional security measures to more punitive, zero-tolerance policies and surveillance-based approaches. Academic literature and media accounts highlight that such efforts continue to proliferate and extend across our nation's school spaces. This three-paper dissertation examines how specific safety practices--namely, the presence of armed civilians, School Resource Officers (SROs), and random metal detector checks--influence student outcomes and contribute to the school-to-prison pipeline. Rooted in Becker's (1963) and Lemert's (1967) labeling theory, as well as Sampson and Laub's (1997) cumulative …

Geography Of Non-Daytime Work And Employer-Centered Transit Accessibility, Julia Mai Plotts

Dissertations and Theses

Non-daytime shift workers--including those on evening, night, rotating, and split shifts--face unique transportation challenges. Those who rely on public transit often contend with complicated commutes and longer wait times on public transit systems that have traditionally catered to the 9-to-5 workforce. Meanwhile, the non-daytime workforce is disproportionately composed of marginalized groups, including low-income workers, racial and ethnic minorities, and individuals with fewer education credentials. For many lower-income workers, car ownership does not present a viable alternative, as cost-of-ownership consumes a significant portion of their income. This makes access to nighttime public transit a critical equity concern. However, most transit accessibility …

"I Know Who I Am": Draw-And-Tell Conversations With Gender-Creative Children, Eline Leemans Lenne

Dissertations and Theses

A growing number of children identify in various gender-creative ways, likely due to broader social awareness and affirmation of transgenderism. Gender-creative children face higher risks for adverse social, academic, mental health, and healthcare outcomes compared to non-transgender peers. Support from loved ones along with guidance from pediatric providers can mitigate poor outcomes and ensure that gender-creative children live healthy and happy lives. Young gender-creative children's perspectives about the aforementioned topics are markedly absent from the literature, which instead highlights adolescent and adult proxy perspectives.

In this participatory arts-based study anchored by a constructivist epistemology and informed by post-structuralist, queer, and …

Urban Beavers At The Crossroads: How Ecological Knowledge, Sociodemographic, And Spatial Context Shape Public Perception And Coexistence Preferences, Matthew Guziejka

Dissertations and Theses

Urban beavers demonstrate synurbization by adapting to urban environments, offering ecological benefits such as biodiversity enhancement and flood mitigation, while also occasionally conflicting with infrastructure. This study examines how ecological knowledge, sociodemographics, and spatial context influence public perceptions and management preferences for urban beavers in the Tualatin River watershed, Oregon.

A voluntary survey of 176 participants from peri-urban areas assessed demographic characteristics, ecological knowledge, and attitudes toward management approaches. Spatial factors, such as proximity to watercourses and green spaces, were also analyzed. Logistic regression analyses were used to explore relationships between these factors and management preferences. Political orientation was significantly …

Special Delivery: Special District Use Of Collaboration To Solve Challenges, Kelly Irene Fahl Sherbo

Dissertations and Theses

As the special district sector continues to increase in number across the U.S., understanding their role in public governance increases in value both to practitioners and academia alike. The state of the academic literature on special districts does not yet reflect the large size and importance of the sector and has been severely limited by available data, mainly coming from the U.S. Census Bureau. Existing research has focused on broad descriptions of the field of special districts, some studies focus on policy and political effects; but scant research analyzes behavior within and among special districts, particularly with their public entity …

Characterizing Rainfall Variability Within A Series Of Storms Over Northern California In February 2017, Parker Jan Malek

Dissertations and Theses

In February 2017, a series of storms with associated atmospheric rivers (ARs) made landfall in the US state of California, dropping large amounts of precipitation over the Sierra Nevada Mountains and their western foothills. The rainfall from these ARs, long, narrow bands of water vapor that transport large amounts of water vapor from the tropics to the mid-latitudes, instigated the near-failure of the Oroville Dam located at the southeastern edge of the Feather watershed outside the city of Oroville in the state's Central Valley. This case study provides a synoptic and mesoscale diagnosis of the drivers of rainfall pulses that …

Neural Visual Synthesis For Graphics, 4d Gaussians And Videos, Zhan Li

Dissertations and Theses

Efficient visual synthesis has played an indirect yet important role in the development of neural networks. Graphics processing units (GPUs) were initially designed for visual synthesis tasks such as rendering graphics. However, their parallel computing capabilities later made GPUs the ideal hardware for training neural networks. Since neural networks have greatly benefited from GPUs, a compelling question arises: How can neural networks, in turn, improve efficient visual synthesis?

Existing visual synthesis methods still require improvement for higher efficiency. For example, Monte Carlo rendering takes over 15 minutes to generate a megapixel frame at a high-quality setting on a GPU, as …

Layout-Aware Quantum Circuitry And Algorithmic Extensions To Grover's Algorithm, Ali Al-Bayaty

Dissertations and Theses

Lov K. Grover introduced, in 1996, Grover's algorithm as a quantum search algorithm to find all solutions for quantum oracles representing classical problems. My research observed that the Grover diffusion operator of Grover's algorithm gives wrong solutions when Boolean oracles are designed in some logical structures. Therefore, I invented the new "controlled-diffusion operator" for Boolean oracles as a new approach for Grover's algorithm that always correctly solves the problem of Grover's algorithm.

Another important problem in quantum computing is designing reliable and cost-effective quantum gates using reversible binary logic. In classical logic design, the stage of logic design can be …

Model Explanations For Gender And Ethnicity Bias Mitigation In Ai-Generated Narratives, Martha Otisi Dimgba

Dissertations and Theses

Large Language Models (LLMs) are increasingly utilized in diverse applications, ranging from professional content creation to decision-making systems. However, their outputs often amplify the biases present in their training data, perpetuating stereotypes and reinforcing societal inequities, particularly regarding gender and ethnicity. Such biases can cause tangible harm, especially for underrepresented groups, and require awareness and effective mitigation strategies.

This work explores gender and ethnicity representation in narratives created by generative AI describing 25 occupational fields defined by the U.S. Bureau of Labor Statistics. We examine three large language models (LLMs)--Llama 3.1 70B Instruct, Claude 3.5 Sonnet, and GPT 4.0 Turbo. …

The Role Of Homocysteine Redox Chemistry In Biomolecular Mechanisms, Megha Gupta

Dissertations and Theses

Homocysteine at elevated levels is a well-known independent risk factor for cardiovascular disease. However, it is still unclear, after large scale clinical trials, involving tens of thousands of patients, whether homocysteine is a disease mediator or marker. The disconnect between the basic science showing the association of homocysteine with cardiovascular disease and the outcomes of clinical trials based on vitamin therapy for homocysteine lowering, highlights the need for insights into the molecular mechanisms linking homocysteine to cardiovascular disease and other pathologies. For example, elevated homocysteine levels have also been associated with risk for stroke, venous thromboembolism, Alzheimer's disease, neural tube …

Monitoring And Modeling Legacy Tree Response To Restoration Treatments In The Klamath Mountains, Oregon, Usa, Isaac Joseph Ball

Dissertations and Theses

Climate change and its disruption of historical drought and wildfire patterns pose a substantial threat to forest health in the western United States. This threat is compounded by past management practices like fire suppression. The largest, oldest, and most ecologically valuable trees are particularly vulnerable, making their conservation a key objective of climate-adaptive forest management. Restoration treatments such as mechanical thinning have been shown to enhance tree growth and drought resilience in dry conifer forests, but long-term monitoring is necessary to understand their sustained effects. This study used dendroecological tree-ring analysis to investigate the effects of thinning on the growth, …

Investigating Environmental Controls On Temperature Dynamics In An Urban Stream, Matthew Cullen Yates

Dissertations and Theses

Water temperature is a critical environmental variable influencing aquatic ecosystems. This study investigated the factors controlling stream temperature and thermal stratification in Rock Creek (RC) and Bethany Lake, an urbanized watershed featuring an in-line irrigation pond and buried wastewater infrastructure. Previous research suggested that subsurface water flow might drive temperature shifts in Rock Creek during summer periods when flow from Bethany Lake ceases. From 2023 to 2024, continuous temperature and stage monitoring, combined with statistical methods including principal component analysis and random forest regression, were used to evaluate seasonal temperature dynamics and their controlling factors. Results confirmed that seasonal reversals …

Commensality In The Eateries Of Roman Pompeii, Amaya Yolanda Eckersley

Dissertations and Theses

Despite a nearly 300-year excavation history at Pompeii and many identified eating and drinking establishments, social behavior in these public or semi-public spaces has eluded significant research. Elite Roman literature is the traditional guideline for understanding Roman mealtimes and what they meant for social behavior. This literature, however, fails to accurately represent its sub-elite inhabitants. These sub-elites of Rome largely had their meals prepared outside of their homes. Pompeii is no exception and provides a massive boon for researchers willing to consider archaeological evidence. The buildings and evidence buried at Pompeii have ultimately shown a wide array of tabernae related …

Shock Effects Including Maskelynite Formation In Three Shergottite Meteorites From Mars, George Ayeh Anim

Dissertations and Theses

Martian meteorites result from large impact events on the surface of Mars that cause intense shock metamorphism. This study examines the shock metamorphic features of three shergottite meteorites, Dho 019, NWA 12241, and NWA 15628, to better understand shock impact events. The research uses petrographic analysis, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and electron backscatter diffraction (EBSD) to analyze the meteorites. A key focus of this research is the formation of maskelynite, a glass with plagioclase composition, whose formation mechanism has been the substance of debate among researchers. This study proposes that maskelynite forms through a transient intermediary …

Photocathodes From Aerobic Oxidation Of Tellurorhodamines, Amelia Jellison

Dissertations and Theses

Growing environmental concerns have facilitated an increased need for renewable energy. Solar energy is an excellent source of renewable energy, however current dye-sensitized solar cells are not efficient enough for commercial use. This thesis attempts to create a novel dye-sensitized cathode to increase the efficiency of dye-sensitized solar cells.

Dye-sensitized cathodes could lower the energy level on the cathode and thereby increase the overall efficiency of the solar cell, however until now it has not been attempted. A tellurorhodamine dye with a mesityl ring was chosen as the dye for its ability to aerobically oxidize in the presence of light. …

Experiences Of Minority Workers: A Three-Study Dissertation Evaluating Recruitment And Workplace Experiences For Minority Workers, Jennifer Saucedo

Dissertations and Theses

Through a series of three manuscripts, the dissertation explores the experiences of minority groups across different points of the employee life cycle. As minority employees often face a negative set of unique stressors inside and outside of work, this series of papers attempt to further our understanding of minority experiences during the organizational stages of recruitment and retention. The first manuscript tests the effects of recruitment material on pre-hire applicant outcomes for minorities by integrating literature on realistic job previews (RJPs) and diversity recruitment. The experimental study finds that leader diversity testimonials that provide a mix of positive and negative …

Displaced: An Ethnography Of Language And Identity Loss, Ariel Caroline Wilsey-Gopp

Dissertations and Theses

Through ethnography and personal narrative, I explore the language and identity loss of one person, my father, in order to understand the complex issues surrounding the effects of symbolic and structural violence on language and identity development. Through personal narrative, fieldwork, and interviews, I tell the story of one person, born in wartime during Nazi occupied Serbia, and follow the guiding questions: how does language get lost and what are the effects? Drawing on methodology set forth by empirical ethnographical work as well as more recent theory around epigenetics and trauma, my research synthesizes into focus three pillars of understanding …

Youth Experiences Of Participation, Inclusion, And Influence Within A Youth-Serving Organization Implementing Participatory Processes, Rhen M. Miles

Dissertations and Theses

The youth development field has undergone shifts and reconstructions in how youth are conceived, impacting the approaches of youth-serving programs attempting to facilitate learning, growth, and engagement. Evolving views inform how policymakers, funders, and youth-serving agencies perceive and relate with youth. In turn, these dynamics influence how youth learn to think about themselves, others, and the world. Dominant discourse regarding youth development has been shifting from a deficit-based to an asset-based lens, with the proliferation of Positive Youth Development (PYD) frameworks, which seek to cultivate internal strengths and positive developmental outcomes rather than just prevent negative behaviors and outcomes. Despite …