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Ronald E. Mcnair Scholars Program Profiles And Abstracts 2025, Mcnair Scholars Program

McNair Symposium

This publication provides research abstracts and biographies of 2025 McNair scholars and their mentors.

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.

Overcoming Challenges In Mapping Hydrography And Heterogeneity In Urban Landscapes, Kristina G. Hopkins, Rebecca L. Hale, Krista A. Capps, John S. Kominoski, Jennifer L. Morse, Allison H. Roy, Andrew Blinn, Shuo Chen, Liz Ortiz Munoz, Annika Quick, Jacob Rudolph

Environmental Science and Management Faculty Publications and Presentations

Understanding how water moves through a watershed is one of the most fundamental yet often complicated aspects of hydrology, especially in urban areas. Urban infrastructure and water management alter natural hydrological pathways in developed watersheds, which can violate assumptions of a watershed approach to ecosystem science. We focus on two aspects of urban landscapes that often create challenges to model watershed processes within and among urban areas: (1) accurate delineation of urban flow paths and (2) consistent characterisation of the urban landscape within and among cities. Here, we describe these challenges and identify how certain components of these challenges can …

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 …

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 …

Convergence Research For Sustainable Regional Systems, Heejun Chang, Brian Roe, Murat Erkoc, Josiah Heyman, Katherine Foo, Debankur Sanyal, Debjyoti Banerjee, Richard Rushforth, Jaishri Srinivasan

Geography Faculty Publications and Presentations

Summary:

Convergence research addresses societal and environmental challenges by co-creating knowledge across disciplinary boundaries, often in deep collaboration with extra-academic parties to ensure that the research process is solution-focused, actionable, and just. As part of National Science Foundation (NSF)-funded research projects on sustainable regional systems, we present multiple perspectives on conducting convergence research within the coupled social-ecological-technological systems framework. These projects explicitly engage extra-academic parties to co-design and co-produce knowledge throughout all stages of this participatory research. We introduce the 3 C’s model as a framework that links a research team’s Communication, Collaboration, and Creation decisions to the likely degree …

Combined Passive And Active Ultrasonic Stress Wave Monitoring Of A Full-Scale Laboratory Reinforced Concrete Bridge Column Subject To Reverse-Cyclic Lateral Loading, Niklas Epple, Thomas Schumacher, A. K. M. Golam Murtuz, Ernst Niederleithinger, Peter Dusicka

Civil and Environmental Engineering Faculty Publications and Presentations

Effective monitoring of reinforced concrete structures requires techniques that detect early-stage material change and active, localized cracking. This study investigates a combined structural health monitoring approach using passive acoustic emission and active ultrasonic methods on a full-scale reinforced concrete bridge column subjected to reverse-cyclic lateral loading. Active monitoring, based on coda wave interferometry, was used to track changes in wave velocity and waveforms, while passive acoustic emission monitoring was used to detect crack activity. The instrumentation consisted of three embedded ultrasonic transducers and three surface-mounted acoustic emission sensors. The results show that active ultrasonic monitoring is most effective prior to …

Imputation Via Domain Adaptation: Rethinking Variable Subset Forecasting From Knowledge Transfer, Runchang Liang, Qi Hao, Yue Gao, Kunpeng Liu, Lu Jiang, Pengyang Wang, Minghao Yin

Computer Science Faculty Publications and Presentations

Multivariate time series forecasting in practical deployment faces a critical challenge termed Variable Subset Forecasting (VSF), where certain variables accessible during training are entirely missing during inference. This creates a stark discrepancy between the training (source domain with full variables) and inference (target domain with partial variables) environments, disrupting cross-variable dependencies and fragmenting global temporal patterns. Existing imputation methods, limited to transferring local knowledge (e.g., temporal neighbors or pairwise correlations), fail to capture essential global dynamics, leading to severe performance degradation under distribution shifts. To address these challenges, we redefine VSF as a cross-domain knowledge transfer problem and propose VIDA, …

Survey Of Aquatic Invasive Plants In Selected Umpqua National Forest Lakes And Ponds, Jacob Rose, Gabriel E. Campbell, Catherine De Rivera

Center for Lakes and Reservoirs Publications and Presentations

Seven lakes and ponds within the Umpqua National Forest were surveyed for aquatic invasive weeds during the summer of 2025. These survey results support the US Forest Service and collaborators’ preparations for an upcoming National Environmental Protection Act (NEPA) effort to provide coverage for management actions. Center for Lakes and Reservoirs previously surveyed selections of these waterbodies in 2011 and 2009. For this survey, staff sampled 44-105 points per waterbody, and recorded species frequency, species proportion, and water depth. Surveyed waterbodies predominantly featured diverse native plant communities with 12 to 25 aquatic and emergent species. However, the invasive yellow floatingheart …

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 …

Translating Soil Salinity To Agricultural Salt Stress: Key Salt-Tolerance Mechanisms For Agrohydrologic Models, Josh Gottlieb, Dvir Ochman, Cheng-Wei Huang, Jean-Christophe Domec, Nimrod Schwartz, Samantha Hartzell

Civil and Environmental Engineering Faculty Publications and Presentations

Summary:

Salt stress has a detrimental impact on crop yield and survival rates, which salt-tolerant cultivars can resist through numerous adaptive mechanisms. Most models of salt stress impacts on productivity and water use employ empirical or simplified schemes to represent salt-adaptive traits. However, with an increased understanding of these physiological tolerance mechanisms and emergent measurement techniques for monitoring key salinity dynamics, the potential for developing mechanistic agrohydrological models of the soil-plant-atmosphere continuum has grown. This perspective highlights strategies for modeling salt tolerance mechanisms, including root system architecture adaptation, salt filtration, adaptation of plant hydraulics, ion compartmentalization, and stomatal responses, to …

The Evolving Future Of Work: Implications For Newcomer Adaptability And Connectivity During Organizational Socialization, Talya N. Bauer, Berrin Erdogan, Allison M. Ellis, Donald M. Truxillo, Grant M. Brady, Julie M. Mccarthy

Business Faculty Publications and Presentations

Organizational socialization and the practice of onboarding new hires are central human resources functions. However, traditional socialization theory and practice were built on assumptions that are increasingly misaligned with today's work context. We identified four current, emerging, and future work trends that characterize the evolving landscape surrounding organizational socialization: technological advancement, the expansion of remote work arrangements, rising societal loneliness and mental health challenges, and aging workforce demographics. Collectively, these trends have contributed to dramatic shifts in the context and performance of work, as well as the expectations that employees and organizations hold for one another. Accordingly, we argue that …

Responding To The Needs Of Dementia Care Partners: Recommendations For Policy Change At The State And Federal Levels., Walter D. Dawson, Jenn Reed, Allison Lindauer, Sherril B. Gelmon

Institute on Aging Publications

The need to optimize supports of Alzheimer's disease and related dementias (ADRD) care partners through policy innovation is high. This study sought to frame the care and support needs of multiple historically underrepresented populations who may be underserved and/or have difficulty accessing culturally specific services and determine specific policies that may reduce ADRD care partner burden and improve wellbeing. Qualitative data were gathered through interviews ( = 24) with leaders of organizations that support people living with ADRD and focus groups ( = 5) with dementia care partners from four communities historically underserved in the United States (Asian, Black, Indigenous, …

Critical Mineral Mining And Native American Rights, Spencer Beeman Janes

Dissertations and Theses

This thesis examines the intersection between critical mineral mining and Native Americans' rights. Critical minerals are essential for creating electric and sustainable energy sources that fuel the world's evolving technological landscape. The United States is making a concerted effort to mine these minerals on American soil due to their vital role in serving the U.S economy and national defense. However, many of these mineral reserves lie within close proximity to Native American reservations, and mining them directly impacts Native American communities. The development of critical mineral mines can offer substantial benefits to indigenous communities, but they also have the capacity …

Beyond Translating Cultures: Organizational Cultural Brokering And Latin@/E/X Community Resilience After The "Mobile Home Parks" Fire, Christine Atalie Da Rosa

Dissertations and Theses

As wildfires increase in frequency and severity in rural communities, disaster management agencies are seeking to collaborate with community-based organizations (CBOs) working with rural, low-income Latin@/e/x communities to build wildfire resilience. This qualitative case study examines the critical role of CBOs rooted in their local, predominately low-income Latin@/e/x communities as cultural brokers in supporting Latin@/e/x wildfire survivors following the 2020 "Mobile Home Parks" Fire in a rural county in Oregon. Drawing from 23 semi-structured interviews, three focus groups, a review of relevant documents, and participant observations, the research investigates how Latin@/e/x CBOs navigated the complex cultural landscape between wildfire survivors …

The People's Rivers: Early Environmental Regulation And The Oregon State Sanitary Authority, Avery Morgan Fischer

Dissertations and Theses

The environmental movement in Oregon can trace its origins to the turn of the twentieth century, where citizen activism and initiative led to the creation of an early environmental regulatory agency, the Oregon State Sanitary Authority. This creation established that the State of Oregon had a duty to preserve, not just the navigability or usability of rivers and waterways, but the quality and purity of its water. The Oregon State Sanitary Authority played an active role in maintaining and protecting the environment as a mandate of the people, and throughout its thirty-year existence battling industrial polluters, reluctant municipalities, and disinterested …

The Call Of Cucurrucucú, Rachel Olivia Blair

Dissertations and Theses

This is a site of geologic excavation; where charged voices like porous monoliths and forked-tongue shapeshifters call out in fragmented polyphony. What lies broken or misshapen, what can be pieced back together.

What is purity when the body that is being inherited is drowning in murky waters.

Isolation Enhancement Based On Tm010 And Te30 Mode Characteristics In A Patch Antennas Using Genetic Algorithm Optimization For Ku-Band Applications, Muddineni Raveendra, U. Saravanakumar, P. Padmaloshani, P. Saam Prasanth Dheeraj, Anand Anbalagan, R. Sreelakshmy

Electrical and Computer Engineering Faculty Publications and Presentations

This paper proposes a novel technique to enhance isolation in rectangular patch antennas by leveraging the mode characteristics of TM010 and TE30 to achieve better than −40 dB between the transmitter and receiver with dual‐polarization features. The primary innovation of this work lies in achieving significant isolation enhancement solely by combining two resonant modes with orthogonal polarizations, without incorporating any additional design elements such as parasitic components or decoupling structures. To validate the isolation enhancement based on these mode characteristics, a pair of rectangular transmitter and receiver patch antennas was designed to operate in the frequency range from 14 to …

Prospects For Telemedicine Adoption: Prognostic Modeling As Exemplified By Rural Areas Of Usa, Jisun Kim, Hamad Alanazi, Tugrul Daim

Engineering and Technology Management Faculty Publications and Presentations

Experts predict that in the majority of countries state healthcare expenditures will continue to rise. Usage of telemedicine applications – the use of information and communications technologies (ICT) in order to provide clinical health care at a distance – will help optimize the costs of healthcare in the long-term. The main advantages of telemedicine include reducing the number of doctor’s errors, saving both patients and physicians time, and improving the efficiency of healthcare organizations. It also ensures timely and quality services for large segments of the population living in remote territories with difficult socio-economic conditions, particularly rural areas.The paper forecasts …

Sustainability Of Recycling Perovskite Solar Cells: Economic And Environmental Perspectives, Juan P. Herrera Meza

Dissertations and Theses

Perovskite solar cells (PSCs) are among the most promising next-generation photovoltaic technologies due to their high efficiency and low production costs. Nonetheless, concerns about the toxicity of lead-based absorbers and the lack of standardized recycling protocols present substantial environmental and economic challenges. This thesis provides a comparative life-cycle environmental and economic evaluation of eight state-of-the-art PSC recycling processes. This assessment adheres to ISO 14040/44 standards and combines environmental and cost analyses. Solvent reuse is explicitly modeled for recovery of each functional layer (back contact, absorber, hole-transport, and TCO/glass) to reflect industrial practices. The results show that while most methods reduce …

Summer Proceedings 2025, Sav Milburn, Brandon Hernandez-Calvario, Roberto Palacios, Paris Wu, Naomi Cai, Olivia Wang

altREU Projects

This comprehensive collection showcases cutting-edge research from undergraduate students participating in three innovative programs at Portland State University: the NSF-funded Research Experiences for Undergraduates (REU) site on "Computational Modeling Serving Portland," the alternative Research Experiences for Undergraduates (altREU) program, and Teuscher Lab internships. These programs leverage community partnerships while breaking traditional barriers through fully online, accessible formats that welcome students regardless of background or circumstances. The 24 projects span foundational AI methods, healthcare and medical AI, transportation and urban safety, environmental and earth sciences, language and social AI, and specialized neural architectures. From developing assistive driving companions and emotion-aware AI …

Direct Coupling Of Continuum And Shell Elements In Large Deformation Problems, Astrid Pechstein, Michael Neunteufel

Mathematics and Statistics Faculty Publications and Presentations

In many applications, thin shell-like structures are integrated within or attached to volumetric bodies. This includes reinforcements placed in soft matrix material in lightweight structure design, or hollow structures that are partially or completely filled. Finite element simulations of such setups are highly challenging. A brute force discretization of structural as well as volumetric parts using well-shaped three-dimensional elements may be accurate, but leads to problems of enormous computational complexity even for simple models. One desired alternative is the use of shell elements for thin-walled parts, as such a discretization greatly alleviates size restrictions on the underlying finite element mesh. …

The Discontinuous Petrov–Galerkin Method, Leszek Demkowicz, Jay Gopalakrishnan

Mathematics and Statistics Faculty Publications and Presentations

The discontinuous Petrov–Galerkin (DPG) method is a Petrov–Galerkin finite element method with test functions designed for obtaining stability. These test functions are computable locally, element by element, and are motivated by optimal test functions which attain the supremum in an inf-sup condition. A profound consequence of the use of nearly optimal test functions is that the DPG method can inherit the stability of the (undiscretized) variational formulation, be it coercive or not. This paper combines a presentation of the fundamentals of the DPG ideas with a review of the ongoing research on theory and applications of the DPG methodology. The …

Expanding And Mainstreaming Sociohydrology Toward Transdisciplinary Praxis, Shinichiro Nakamura, Heidi Kreibich, Melissa Haeffner, Jenia Mukherjee, Giuliano Di Baldassarre, Maiko Sakamoto, Mikiko Sugiura, Günter Blöschl, Taikan Oki, Murugesu Sivapalan

Environmental Science and Management Faculty Publications and Presentations

Since its development in the early 2010s, sociohydrology has deepened our understanding of the long-term coevolution of humans and water by integrating insights from both the natural and social sciences, while also fostering an interdisciplinary community. Its modus operandi to date has been to focus on emergent phenomena, manifesting as unintended consequences, in a variety of contexts. The compound disaster that struck Japan’s Noto Peninsula in 2024, and similar experiences in other parts of the world, underscore the urgent need for systemic approaches that are co-developed by academia and practitioners and focus on context-specific solutions. This perspective piece thus calls …

The Answer To Perimenstrual Distress Is Not Automatically Prescription: Review Of Allopathic And Integrative Approaches To Mental Health Care For Pms & Pmdd Symptoms, Grace Oja

University Honors Theses

Premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD) affect a notable percentage of people who menstruate. PMS/PMDD have a wide range of symptoms that negatively impact mental well-being and quality of life. This review is the culmination of a database search to review current allopathic treatments for PMS/PMDD, which often include oral contraceptives and antidepressants, and explore evidence-based methods for integrative and alternative treatments to address some of the limitations of standard allopathic care, including limitations on which symptoms they address and side effects. This paper aims to examine how integrative medicine may expand existing treatments for PMS and PMDD …

Who Bears The Burden? An Assessment Of Vulnerability And Resilience To Consecutive Disasters In The Portland Metro Region, Idowu Ajibade, Jason Sauer, Matthew Walter, James M. Done, Ming Ge, Elliot Gall, Aswatha Raghunathasami, Paul C. Loikith, Chris Lower, Heejun Chang, Arun Pallathadka, E Mae Sowards

Geography Faculty Publications and Presentations

Climate-related disasters threaten urban areas worldwide, yet gaps remain in understanding how multiple stressors interact to shape resilience. This study examines exposure, vulnerability, and resilience across three consecutive extreme events in the Portland metro area: the September 2020 wildfire-related air pollution, the February 2021 snowstorm, and the June 2021 heatwave. We used geographically weighted regression and Spearman rank correlation analysis to investigate relationships between hazard impacts, the social vulnerability index (SoVI), Baseline Resilience Indicators for Communities (BRIC), and proximity to community-based organizations (CBOs) in 416 census tracts. Our analysis reveals strong spatial correlations between wildfire-related air pollution, winter storm impacts, …

Let's Chat About Spoken Discourse: A Tutorial To Support Use Of Spoken Discourse Analysis When Providing Aphasia Clinical Services., Manaswita Dutta, Laura L. Murray, Hyejin Park, Elizabeth Burklow, Arpita Bose, Hana Kim, Kathryn Greenslade, Amy E. Ramage, Collean Combs, Anusha Balasubramanian, Marianne Casilio

Speech and Hearing Sciences Faculty Publications and Presentations

Spoken discourse is integral to everyday communication; improving discourse outcomes is a primary goal for individuals with aphasia and their families. Consequently, the application of discourse analysis in aphasia assessment and treatment has gained increasing attention in both research and clinical settings. Despite its recognized value among researchers and clinicians, several barriers-such as limited time, inadequate training, and lack of resources-continue to impede the widespread use of discourse analysis into clinical practice. To facilitate its broader adoption, speech-language pathologists require access to comprehensive resources that include information on discourse tasks, outcome measures, psychometric properties, and practical examples of how to …

Kolmogorov–Smirnov-Based Edge Centrality Measure For Metric Graphs, Christina Durón, H. Kravitz, Moysey Brio

Mathematics and Statistics Faculty Publications and Presentations

In this work, we introduce an edge centrality measure for the Helmholtz equation on metric graphs, a particular flow network, based on spectral edge energy density. This measure identifies influential edges whose removal significantly changes the energy flow on the network, as indicated by statistically significant p-values from the two-sample Kolmogorov–Smirnov test comparing edge energy densities in the original network to those with a single edge removed. We compare the proposed measure with eight vertex centrality measures applied to a line graph representation of each metric graph, as well as with two edge centrality measures applied directly to each …

Hegemonic Entrepreneurial Masculinities In Patriarchal Contexts: Exploring Men's Entrepreneurship In War-Torn Territories, Doaa Althalathini, Theodore A. Khoury, Nick Rumens

Business Faculty Publications and Presentations

This article examines how the war-torn context in Iraq has affected men’s entrepreneurship and entrepreneurial masculinities. Drawing on the entrepreneurship masculinities literature, Connell’s notion of hegemonic masculinity and in-depth interviews with 21 Iraqi men entrepreneurs, this article demonstrates the complex interplay between entrepreneurship, masculinity and patriarchal dynamics in the context of wars and economic instability in Iraq. Study findings show how Iraqi men often turn to entrepreneurship out of necessity to meet patriarchal expectations of them as primary providers for their families. We contribute to the literature on entrepreneurship, men and masculinities by demonstrating how entrepreneurship not only serves as …

Revealing The Role Of Saccharibacteria (Tm7) In The Oral Cavity And Its Potential Applications In Fighting Gum Disease, Tyrese Ostin-Bordeaux

PSU McNair Scholars Online Journal

This study explores the physiology of TM7, a mysterious microbe, in preventing gum disease. A literature review of 42 articles examines TM7's interactions with other microbes, deeming the microbe's behavior could help modulate pathogenic bacteria in the oral cavity as a probiotic.