Digital Commons Network^™

Oregon State Rank Assessment For Stemmed Polypore (Xeroceps Skamania), Nora Dunkirk

Institute for Natural Resources Publications

Oregon state conservation status assessment for Stemmed Polypore (Xeroceps skamania) using NatureServe methodology, 2026.

Trapped In Transition: Structural Change And Political Dynamics In Middle-Income Countries, Gabriel Duvidovich

Dissertations and Theses

The middle-income trap literature has examined why relatively few middle-income countries transition to high-income status. A range of explanations has been proposed, but the political dimension has often been overlooked. Studies that take a political perspective often focus on institutional form rather than the state’s ability to effectively implement policy. This study addresses this gap by bringing political capacity to the center of the analysis. It argues that political capacity appears important for the productive upgrading required for sustained growth in middle-income economies and shapes economic growth trajectories across countries at different income levels.

The empirical analysis uses country-period panel …

“Turn The Faucet”: Right-Wing Hydrosocial Imaginaries Of Irrigation Water In The Western United States, Alexander Reid Ross, Thien-Kim Bui, Alida Cantor

Geography Faculty Publications and Presentations

The second administration of United States President Donald Trump has taken an authoritarian, centralized approach to governance in the United States. Water management is one area in which the president has attempted to show dominance. This research theorizes President Trump’s concept of water in the United States West as a “hydrosocial imaginary” in which the release of water from rivers and reservoirs indicates virility, action, and power, instead of liberal cautiousness and prudence. By ordering the release of two billion gallons of water from California’s Central Valley into the dry Tulare Basin one hundred miles north of Los Angeles for …

We Don't See Race, We See Blue: A Case Study Of Police Unions As Racialized Organizations, Sarahfina Aubrey Peterson

Dissertations and Theses

In the late 1960s, police began to unionize. Today, they are the most well-organized labor force in the United States, with 70% to 80% of sworn officers now represented by a union. Though it has been decades, little scholarship has developed about how police unions affect policing. Much of the research that does exist uses race-neutral frames to address an organization steeped in racial history. This study aims to address this gap in scholarship, in part, by introducing race as a motivation for and explanation of organizational output.

This research applies Victor Ray's racialized organizations theory to police unions. I …

The Freedom Myth: How Ski Culture's Hidden Conformity Reveals The Unconscious Power Of Brand Belonging, Isabel R. Phillips

University Honors Theses

Purpose: Ski culture sells freedom and enforces conformity. This review asks what unconscious behavioral patterns hold that contradiction in place, and how brands capitalize on it to manufacture belonging.

Design/Methodology/Approach: A narrative literature review across consumer psychology, behavioral neuroscience, sociology, and ski industry research. No primary data were collected. Four accounts of consistency-seeking are synthesized into one framework, then applied to three ski industry cases at ascending scales and tested against a comparative case from Spanish football.

Findings: Belonging is a conditioned response, and conditioning requires a stable stimulus. Consistency is therefore the precondition of belonging rather than a constraint …

Ronald E. Mcnair Research Symposium Presentation Schedule 2026, Mcnair Scholars Program

McNair Symposium

This is the presentation schedule for the 24th Undergraduate Ronald E. McNair Research Symposium 2026.

Experiences Of Psychological Recovery From Work In Second-Generation Asian Americans, Laura Yang

Dissertations and Theses

Individuals of Asian descent make up approximately 7.4% of the U.S. population. As one of the fastest-growing minority groups, their population is projected to reach nearly 15% by 2065, with 38% being foreign-born – surpassing all other racial minority groups. Despite their increasing presence in the U.S. workforce, research on Asian workers' nonwork experiences remains limited. One key unexplored area is how Asian workers engage in recovery after work, considering their unique cultural and racialized experiences. Drawing on literature examining psychological recovery from work, this qualitative study employed multiple methods of analysis, both listening guide method and thematic analysis, to …

Oregon State Rank Assessment For Deer-Cabbage (Nephrophyllidium Crista-Galli), Lindsey K. Wise

Institute for Natural Resources Publications

Oregon state conservation status assessment for Deer-cabbage (Nephrophyllidium crista-galli) using NatureServe methodology, 2026.

Functionality Risk Assessment And Risk-Based Management For Critical Infrastructure Systems, Anteneh Zewdu Deriba

Dissertations and Theses

Critical infrastructure systems such as transportation networks serve as the lifelines of modern society, supporting economic activity and ensuring access to critical services. Their disruption under extreme events can produce consequences extending far beyond physical damage to individual assets. In transportation networks for instance, failures of critical assets such as bridges and tunnels can reduce accessibility of communities, limit freight capabilities for commerce, and increase travel distance and travel time of road users. These consequences associated with the system functionality loss are tied not only to the physical vulnerability and failure of individual assets, but also to the system configuration …

How We Benefit From Job Satisfaction: The Moderating Effect Of Informal Caregiving On The Associations Between Job Satisfaction And Physiological And Psychological Stress, Jensine Paoletti-Hatcher, Vincent D. Lai, Christopher P. Fagundes

Psychology Faculty Publications and Presentations

Job satisfaction and the resource-building processes it supports may have meaningful implications for health and well-being. These processes may work differently for employees who have informal (i.e., unpaid) caregiving duties outside of work. Guided by conservation of resources theory, we examined two indirect stress-buffering pathways in a sample of 799 nursing home workers, measured four times over 18 months. We tested how job satisfaction affects gain strengthening (via higher positive spillover) and loss weakening (via lower work-family conflict), how these processes impact indices of physiological (i.e., C-reactive protein) and psychological (i.e., perceived) stress, and how informal caregiving status may moderate …

Moss Biomonitoring And Isotopic Signatures Reveal Aviation Fuel As Local Lead Source Near Oregon Airports, Oluwaseyi E. Aderinboye, Alyssa E. Shiel, Lauren Stalford, Christina J. Murphy, Dean B. Atkinson

Chemistry Faculty Publications and Presentations

Lead emissions from piston-engine aircraft using leaded aviation gasoline (avgas) remain a significant source of environmental contamination near regional airports, posing potential health risks to nearby communities. Passive biomonitoring using the epiphytic moss Orthotrichum lyellii was combined with lead isotope fingerprinting to quantify lead concentrations and distinguish between legacy leaded gasoline and current avgas emissions near Hillsboro and Troutdale airports in Oregon. Here we show that lead levels are elevated by up to 50 times the rural background near airports, with isotopic signatures confirming avgas as a dominant local source. These findings indicate that avgas use contributes substantially to environmental …

Prompt Framing And Evidence Requirement For Ai-Generated Educational Responses In Dental Education: Experimental Study., Man Hung, Corban Ward, Owen Cohen, Jacob Marx, Zachary Smit, Jacob Newman, Martin S. Lipsky

Institute on Aging Publications

Large language models are increasingly used in health professions education; however, the role of prompt design in shaping their outputs remains poorly understood in clinical training contexts. In dentistry, where information presentation, perceived credibility, and procedural reasoning are important, the effects of instructional framing and evidence requirements on AI-generated educational responses are particularly relevant.

Student Teachers Are Watching: What Are They Seeing?, Sarah J. Kaka, Taylor M. Kessner

Northwest Journal of Teacher Education

This article examines the apprenticeship of observation that shapes preservice social studies teachers during clinical placements. Grounded in Lortie’s apprenticeship of observation and Bourdieu’s habitus, we draw on classroom observations collected by student teachers across several states. Findings suggest that cooperating teachers most often modeled traditional, teacher-centered instruction, including lecture and textbook-based work, while offering fewer examples of inquiry, discussion, or primary-source analysis. We argue that these everyday observations shape preservice teachers’ professional dispositions and that teacher educators, cooperating teachers, and field personnel should more intentionally provide access to ambitious, student-centered social studies practice.

Rethinking Teacher Education Programs: (Mis)Understanding Of Culturally Responsive Teaching Among Teacher Candidates, Shirley M. Sommers

Northwest Journal of Teacher Education

This article draws from a study conducted on pre-service teachers enrolled in a teacher education program. The study examines students’ understanding and misunderstanding of what constitutes culturally responsive teaching. This is a mixed methods study. A Likert-type survey and qualitative questionnaires were used to collect data. Descriptive statistics were used to analyze survey data, and a thematic coding method was used for analysis of qualitative data. The results of the study show that pre-service teachers are aware and knowledgeable of the term culturally responsive teaching as the term is widely used in the teacher education program in which they were …

Preparing Inclusive Educators: The Impact Of Fieldwork Experience On Preservice Teachers’ Knowledge, Skills, And Confidence In Working With Students With Disabilities, Adrian Jung

Northwest Journal of Teacher Education

This study examined preservice teachers’ confidence in working with students with disabilities across Elementary (n = 44), Secondary (n = 43), and Special Education (n = 52) programs. Using a quantitative pretest–posttest survey design, participants completed an adapted version of the Special Needs Confidence Scale before and after student teaching. Descriptive statistics and Tukey post hoc analyses were conducted. Results indicated overall increases in confidence following fieldwork, with Special Education preservice teachers reporting consistently higher confidence than Elementary and Secondary peers. Findings highlight the role of targeted preparation and field-based experiences in supporting inclusive teaching readiness.

Measurement Of Pollution Emissions From Natural Gas Stoves: Preparation For An Induction Cooktop Intervention Study, Jessica Zanella Lorensi

Dissertations and Theses

Humans spend ∼90% of their time enclosed in buildings. Indoors environments can be a source of pollutant which can affect health and productivity. Appliances that combust fossil fuels indoors, like stoves, are a critical source of a range of pollutants, like carbon monoxide (CO) and nitrogen dioxide (NO₂). In the US, the usual cooking fuel is natural gas (NG), presented in more than 30% of households in the country. Some studies in the literature linked cooking pollutants, including those specific to gas combustion, to various health conditions, including heart and respiratory diseases. Nitrogen dioxide, for example, can be …

The Prophylactic Landscape: Sand And Typhoid On The Merrimack River, Laila Seewang

School of Architecture Faculty Publication and Presentations

“The first municipal water filter of the rapid sand type was built at Somerville, NJ, and thus began its wonderful history.”  By 1917 the rapid sand filter was the standard defense against typhoid epidemics in the United States.

Radical Republican Citizenship For A Mobile World, Alex Sager

Philosophy Faculty Publications and Presentations

Migrants invariably and unavoidably experience domination under the nation-state centered concepts, categories, and institutions that structure our political thinking. In response, we need to build new forms of citizenship, including local, regional, transnational, and supranational forms of belonging, accompanied by meaningful, democratic, political power. In this paper, I examine historical and present-day alternative models of political organization as possible viable alternatives to state-centric liberal democracy. It begins the task of assessing these models using radical republican theory that grounds non-domination in the active and equal participation of people subject to power. I have three broad aims. First, we need to …

Oak Savanna Expansion: Indigenizing Psu's Urban Landscape, Ash Herb

University Honors Theses

Since time immemorial Indigenous Peoples have resided in what is now named Portland of the Pacific Northwest in the Willamette Valley. For hundreds of years, this forested Land has been colonized, razed to stumps and covered in cement in order to build the urban landscape. Due to such destruction on a broad scale, we are experiencing the results of climate catastrophe. By finding ways to reclaim our relationship with Land and returning to Indigenous epistemologies, our urban landscape has the opportunity to shift towards restoration and prosperity. Indigenous plants have existed here, supporting humans in a reciprocal relationship, for thousands …

Spatial Structure And Energy Content Of Wakes Behind Single And Arrayed Undulated Cylinders, Taiga Naomi Drucker-Boisvert, OndˇRej FerˇCák, Jérémie Auzoux, Sarah E. Smith, Zein Sadek, Rowan Moore, Christain T. Murphy, Trevor Dunt, Jennifer A. Franck, Raul Bayoan Cal

Mechanical and Materials Engineering Faculty Publications and Presentations

Biologically inspired undulated cylinder geometries significantly influence wake structure and vortex-induced vibrations in turbulent flows, yet the underlying mechanisms are not fully understood. It is further unknown how these influences extend to multi-cylinder arrays, where interacting wakes accumulate and mix. This study examines the wake characteristics of an undulated cylinder and a smooth elliptic cylinder in single- and multi-cylinder array configurations, using particle image velocimetry and proper orthogonal decomposition (POD). Relative to the smooth elliptic cylinder, the undulated geometry induces pronounced spanwise-axial variability, characterized by enhanced near-wake mean momentum and weak far-wake signatures, consistent with reduced turbulent kinetic energy. While …

A Scoping Review Of Participatory Tools And Practices In Collaborative Processes: Towards Multi-Actor Collaboration In Integrated Landscape Approaches, Irmeli Mustalahti, Ida Herdieckerhoff, Rebecca Mclain, Anna Mustonen, Rijal Ramdani, Agustiyara Agustiyara, Denis Dobrynin, Nicole Klenk, Gadfly Stratton, Miriam Castillo Orozco, Multiple Additional Authors

National Policy Consensus Center Publications

In this article, we ask how the different tools and practices used in participatory and collaborative processes could support multi-actor collaboration in integrated landscape approaches (ILAs). First, we conducted a scoping review to identify and synthesize literature on participatory and collaborative approaches related to forest, water, land and landscapes. Secondly, we analysed 130 articles to understand how and by which means these approaches engaged different actors in multi-actor collaborations. Our findings identified a wealth of different tools and practices available to support participatory and collaborative approaches, such as participatory mapping and modelling, games and visualizations, scenario development, and knowledge co-creation. …

Of Cables And Threads: Reweaving The Urban Fabric At The Edge Of Bogotá, Federico Pérez Fernández

University Honors College Faculty Publication and Presentations

Over the past two decades, gondola lifts have become central to interventions in urbanLatin America’s auto-constructed peripheries. As cable car urbanism reshapes the city’sedge, it raises fundamental questions about the notion of the “urban fabric” as a socio-material practice, an epistemology, and a site of politics. In Bogotá, the city’s first aerialcable car line has been integrated into the sprawling district of Ciudad Bolívar, revealinga dialectical process of urban fabrication—a form of urban weaving, in the language ofboth experts and residents, that bridges technical retrofits and popular logistics. Thesestate-community interfaces operate beyond the binaries of compromise and dissent, co-optation and …

Storm Surge And Tides In Convergent Estuaries: The Case Of Extratropical Storm Merbok In Alaska, Steven Dykstra, Stefan Talke, David A. Jay, Matthew Lobo, Silvia Innocenti, Pascal Matte

Civil and Environmental Engineering Faculty Publications and Presentations

Coastal floods are composed of multiple drivers that interact with coastline geometries and are difficult to differentiate. To investigate the effects of basin shapes on storm surge and tides, we study the landfall of ex-Typhoon Merbok in the east Bering Sea, Alaska. Water levels at 34 stations are detided with a new tide wavelet tool, CWT_Multi (Lobo et al., 2024), and the spatial and temporal shifts in tides and surge are interpreted via long-wave theory. Results show nonstationary semiannual trends in tidal constituents due to ice effects and large interannual variability in mean-sea level (20-40 cm). After removing non-stationary tidal …

What Drives Blockchain Technology Adoption? A Meta-Analysis Across Tam, Tpb, And Utaut Frameworks, Amir Rahmani, Roohollah Ahmadi, Tugrul Unsal Daim, Mehdi Zamani, Dilek Ozdemir

Engineering and Technology Management Faculty Publications and Presentations

Research on blockchain adoption has expanded rapidly, with most studies conceptualizing adoption as behavioural intention. Technology adoption models, such as the Technology Acceptance Model (TAM), the Theory of Planned Behavior (TPB), and the Unified Theory of Acceptance and Use of Technology (UTAUT), are commonly applied to explore blockchain technology adoption (BTA). However, empirical results from the 12 hypotheses associated with these models remain fragmented and, at times, inconsistent, with limited comprehensive quantitative integration. To address this gap, the present study performs a meta-analysis to evaluate the degree and direction of these hypotheses systematically. In accordance with PRISMA guidelines, 149 quantitative …

Surveys For Rare Springsnails In Southeast Oregon, 2025 With A Focus On The Donner Und Blitzen Pebblesnail (Fluminicola Insolitus), Jesse Laney

Institute for Natural Resources Publications

The Donner und Blitzen pebblesnail (Fluminicola insolitus) is a critically imperiled (G1/S1) freshwater snail historically known from a single spring, Page Springs, in the Donner und Blitzen River drainage of Harney County, Oregon. The species was petitioned for listing under the U.S. Endangered Species Act in February 2024. On January 26, 2026, the U.S. Fish and Wildlife Service published a positive 90-day finding initiating species status review (USFWS 2026).

In August 2025, the Oregon Biodiversity Information Center (ORBIC) at Portland State University, in coordination with the Nevada Division of Natural Heritage (NDNH), the U.S. Fish and Wildlife Service (USFWS), and …

Identity, Needs, And Conflict Online: Understanding Cultural Fragmentation In The Black Diaspora, Imhile Omosede Dora Akpata

Dissertations and Theses

This study examines how identity formation, intra-diaspora tensions, and social media interactions contribute to fragmentation within the Black diaspora. While existing scholarship, including work by Godfried Asante and Elizabeth Chacoko has emphasized the fluid and socially constructed nature of Black identity, less attention has been given to how these processes operate in practice across diverse diasporic groups and how they are intensified in digital environments. This research addresses this gap by analyzing how individuals negotiate Black identity, how tensions emerge within the diaspora, and how social media shapes and amplifies these dynamics.

Drawing on Social Identity Theory developed by Henri …

Impact Of Chronic Pain On The Families Of U.S. Adults, Jennifer S. De La Rosa, Katherine E. Herder, Rita D. Romero, De'sha S. Wolf, Tally M. Largent-Milnes, Mohab M. Ibrahim, Stacy S. Pigott, Greg T. Chism, Beth E. Meyerson, Julie G. Pilitsis, Multiple Additional Auhors

School of Social Work Faculty Publications and Presentations

Introduction:. Chronic pain (CP) can profoundly strain family systems, yet few population studies have explored prevalence and population dynamics of CP with high impact on families. Objectives:. Examining prevalence and phenomenological characteristics of chronic pain with high impact on the families of U.S. adults. Situating HICP-family within a tiered cascade of functional impact. Methods:. Prevalence estimated using 2023 National Health Interview Survey Data (n = 29,522) Results:. Findings are as follows: (1) the population prevalence of CP with high impact on families (high-impact chronic pain [HICP]-Family) is 4.4% among U.S. adults, 18.1% among U.S. adults with CP, and 46.3% among …

Toxic Relationships: Characterization Of A Putative Virally Encoded Toxin In The Thermophilic Archaeal Fusellovirus Ssv1, Jonathan C. Abshier, Patrizia L. Alpapara, Guasåli Tomokane, Kenneth M. Stedman

Center for Life in Extreme Environments Publications

Mechanisms for the maintenance of chronic viruses are poorly understood, particularly for archaeal viruses. Here, we identify the product of Sulfolobus spindle-shaped virus 1 (SSV1) ORF a291 as a putative virally encoded toxin required for growth inhibition but dispensable for viral replication and virion production. Viruses lacking ORF a291 replicated their genomes and formed morphologically normal spindle-shaped particles, yet failed to inhibit the growth of uninfected Saccharolobus solfataricus. Substitution of residues at a predicted N-terminal signal peptide cleavage site abolished growth suppression without affecting replication, suggesting that secretion is essential for toxin function. Despite primary sequence divergence among fusellovirus …

Oregon State Rank Assessment For Alpine Smelowskia (Smelowskia Ovalis), Lindsey K. Wise

Institute for Natural Resources Publications

Oregon state conservation status assessment for Alpine smelowskia (Smelowskia ovalis) using NatureServe methodology, 2026.

Walking The Talk For Dementia: Building Social Networks And Collaborations, Walter D. Dawson, Jenn Reed, Fernando Aguzzoli-Peres, Kate Irving, Sherril B. Gelmon

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: Dementia is one of the greatest global health challenges requiring multimodal efforts to address its impact on people and societies. Walking the Talk for Dementia (WTD) is a unique global initiative designed to challenge the stigma that surrounds dementia, foster intergenerational dialogue, build a community, and inspire a renewed sense of purpose among participants. A social network analysis (SNA) was conducted to provide greater detail and contextualization of the connections made during WTD and insights into the collaborations that arose from this immersive event which may influence dementia policy, care, and services. Methods A robust, comprehensive, and minimally intrusive …