Digital Commons Network^™

From Cafes To Competitiveness: The Influence Of Amenities On Office Values And Suburban Economic Development In Portland, Or, Jihye Kang

Dissertations and Theses

This dissertation examines the spatial and economic implications of urban amenities in the formation of suburban office markets in the post-pandemic period. The research applies principles from agglomeration theory, spatial econometrics, and urban planning to analyze the statistical relationships between amenity distribution, rent formation, and location behavior across central and non-central submarkets.

The research consists of three integrated papers focused on the Portland–Vancouver–Hillsboro, OR–WA Metropolitan Statistical Area (MSA). The first paper employs spatial econometric modeling, specifically a Spatial Autoregressive Model with Autoregressive Disturbances (SARAR), to examine the relationship between proximity to cafés and office rent levels in Portland’s central business …

Linking Climate And Demography To Predict Population Dynamics And Persistence Under Global Change., Jennifer L. Williams, Amy L. Angert, Aldo Compagnoni, Ali Campbell, Megan L. Demarche, Margaret E K Evans, Joshua C. Fowler, Amy M. Iler, Jenna A. Loesberg, Allison M. Louthan, Scott W. Nordstrom, Multiple Additional Authors

Publications, Reports and Presentations

Predicting the effects of climate change on plant and animal populations is an urgent challenge for understanding the fate of biodiversity under global change. At the surface, quantifying how climate drives the vital rates that underlie population dynamics appears simple, yet many decisions are required to connect climate to demographic data. Competing approaches have emerged in the literature with little consensus around best practices. Here we provide a practical guide for how to best link vital rates to climate for the purposes of inference and projection of population dynamics. We first describe the sources of demographic and climate data underlying …

The Librarian Teaching Self-Efficacy Scale, Maoria J. Kirker, David X. Lemmons

Communications in Information Literacy

Teaching self-efficacy is a critical factor in instructional success. Little research has been conducted on how academic librarians perceive their own teaching abilities. This study introduces and validates the Librarian Teaching Self-Efficacy Scale, a tool designed to measure self-efficacy beliefs among academic librarians engaged in information literacy instruction. By adapting established self-efficacy scales to the library instruction context, this study examines key factors influencing librarian teaching self-efficacy, including instructional strategies, lesson planning, and collaboration with faculty. Collective self-efficacy, which is perceptions of colleagues’ teaching confidence, is also examined. Statistical analysis indicates a reliable and valid scale which may benefit …

Cartographic Dialogue: A Pedagogy For Emotion And Critical Consciousness In Language Teacher Educator Identity Development, Camille Ungco‐Santos, Rachel S. Snyder Bhansari

Educator Licensure Faculty Publications and Presentations

Language teacher educators (LTEs) enter their roles with complex personal histories and experiences. Little research exam-ines the ways in which LTEs of varying backgrounds reflect on these histories, their emotional responses to these reflections,and their connections to cultural contexts or systemic (in)justice. In this article, we treat the examination of our own personalhistories and their intersections with systems of power, as well as our related emotions, as pedagogy or as a reciprocal way ofteaching and learning. We critically map out and discuss our journeys towards an LTE identity, including our emotions, througha reflective, collaborative, and ongoing method we call cartographic …

"Oxygen Is Not For The Dead": Critical And Radical Social Work In Palestine, Nadera Shalhoub-Kevorkian, Stephanie Wahab, Abeer Musleh

School of Social Work Faculty Publications and Presentations

Palestinian poet and novelist Hiba Abu Nada, who was killed by an Israeli airstrike in Gaza on October 20, 2023, at the age of 32, taught us that “Oxygen is not for the dead.” Hiba Abu Nada’s (2017) poem, entitled “Our Loneliness,”1 recognizes survivance (Vizenor, 2010)—that is, the active sense of presence and presencing as an endeavor of creating the future (Simpson, 2017)—and asserts Palestinian embodied connections (Shalhoub-Kevorkian, 2024) to land/life (Khoury, 2019 [2016]):

Social Work In Times Of Genocide: A Palestinian Feminist Praxis Of Social Work, Stephanie Wahab

School of Social Work Faculty Publications and Presentations

The abstract is translated in Arabic below. Social work cannot meaningfully claim a commitment to justice, human dignity, and the worth of people while simultaneously remaining committed to colonial logics. Recognizing and resisting collusion with settler colonialism demands structural shifts in knowledge production, curriculum, practice, and institutional alignment. This article speaks to organized social work’s collusion with the zionist project of Palestinian erasure amid the ongoing Nakba and genocide. Since Palestinian social workers are living and surviving genocide as they practice social work, worn binaries, such as provider–client, are unsettled in ways that make a Palestinian feminist praxis of social …

Teaching Research As An Interdependent Practice: Bringing Alternate Models Into The Scholarly Conversation, Natalia Kapacinskas, Veronica Arellano Douglas

Communications in Information Literacy

The customs and practices of research in academia are often mischaracterized as individualistic pursuits, ignoring the reality that research requires a great deal of collaboration. As teaching librarians, our research instruction often reinforces individualism as a scholarly virtue, even as we simultaneously engage with themes of connection between researchers and their ideas. We propose an approach to teaching research and information literacy grounded in the concept, intention, and practice of interdependence rather than individualism. In doing so, we will call in models of interdependence from critical disability studies, relational-cultural theory, Indigenous Ways of Knowing, and the Cite Black Women movement. …

Decomposition Processes And Insect Indicators In Forensic Investigations, Eli Taylor

University Honors Theses

Insects play an essential biological and ecological role in human life, and their predictable relationship with decomposing remains has positioned them as a cornerstone of modern forensic science. Since the early 20th century, forensic entomology has provided critical evidence for estimating the postmortem interval (PMI), relying on patterns of colonization, species succession, and insect developmental timelines. Accurate PMI estimations are vital to medicolegal investigations, influencing the interpretation of biological evidence, guiding resource allocation, and informing determinations of cause and manner of death. However, insect activity is profoundly shaped by environmental and ecological variables, including temperature, humidity, seasonal shifts, and geographic …

Future Vision And Action Recommendations, Sondoss Elsawah, Melissa Haeffner, Anthony Jakeman

Environmental Science and Management Faculty Publications and Presentations

Let us imagine a future world where water management is more fully integrated and supported by the science of sociohydrology and related metadisciplines. This is a vision for the future where the social, cultural, environmental, and economic values of water are explicitly considered through the lens of the science–water policy interface. The ultimate value of research will be measured by how much it supports improvements in water resources and hazards management and, in particular, completes and enriches the science–water policy interface.

Climatic Controls On Soil Production, Transport And Chemical Erosion: Insights From Modelling Topography, Soils And Cosmogenic Nuclides At Little Lake, Oregon, Miles M. Reed, Ken L. Ferrier, Jill A. Marshall, Josh J. Roering, J. Taylor Perron

Geology Faculty Publications and Presentations

Predicting physical and chemical erosion rate responses to climate change are an ongoing challenge in geomorphology. A promising approach for investigating this is by measuring transient variations in physical and chemical erosion rates during climatically variable time periods, which can be accomplished by measuring cosmogenic nuclide concentrations and chemical depletion in sedimentary deposits. Interpreting such measurements warrants applying landscape evolution models that track variations in topography, cosmogenic nuclide concentrations and chemical depletion in soils. We applied a recently developed model that tracks these quantities at Little Lake, Oregon. Previous studies documented variations in cosmogenic nuclide concentrations and chemical depletion in …

Reducing Motor Vehicle – Bicycle Conflicts At Controlled Intersections, Jason C. Anderson, Sirisha Kothuri

PSU Transportation Seminars

One of the most common locations for fatal motor vehicle-bicyclist crashes is at intersections, which inherently have a large number of turning conflicts. Reducing these conflicts is a key objective in improving intersection safety across all modes. Of particular concern for bicyclists’ safety at intersections are the conflicts between straight-through bicyclists and motor vehicle right-turns and opposing left-turns. The objective of this research was to develop guidance and tools for transportation practitioners to use to reduce turning conflicts between motor vehicles and bicycles at controlled intersections and improve the safety and comfort of intersections for bicyclists.

Ambient Air Pollution And The Sex Ratio At Birth: A Systematic Review And Narrative Synthesis., Ursula Gazeley, Hallie Eilerts-Spinelli, Jasmin Abdel Ghany, Ana Bonell, Joshua Wilde

Publications, Reports and Presentations

Ambient air pollution is associated with adverse pregnancy outcomes such as stillbirth, miscarriage, and preterm birth. However, its effects on the viability, implantation, and survival of conceptuses-largely unobserved before the clinical detection of pregnancy-remain poorly understood. Shifts in the sex ratio at birth (SRB) provide a sensitive, population-level indicator of sex-biased conception and pregnancy loss. This systematic review examined whether maternal exposure to ambient air pollution before conception and during pregnancy is associated with deviations in the SRB. We searched MEDLINE, Embase, and Global Health from inception to 12 February 2025 for observational studies assessing both ambient air pollution exposure …

Perspectives Of Cannabis Farmers On Intersection Of Water Access And Cannabis Frontier Constraints In Southern Oregon, Tapiwa Malvin Chabikwa

Dissertations and Theses

Cannabis farming and use are being legalized at unprecedented levels by many states in the United States. Oregon was one of the pioneer states to legalize cannabis in 2016. Although it is legalized at the state level (in Oregon), cannabis remains illegal at the federal level. Due to the quasi-legalization of cannabis, an agricultural frontier for marijuana is unfolding. Cannabis farming in Oregon has grown as there is a market and ideal weather climate for the cannabis industry to flourish. This study seeks to understand the challenges cannabis farmers face in accessing water and the socio-economic and political constraints that …

Incorporating The Influence Of Vehicle Mix On Crash Frequency And Severity, Shahrior Pervaz, Manmohan Joshi, Tanmoy Bhowmik, Dewan Ashraful Parvez, Kai Wang, John N. Ivan, Naveen Eluru

Civil and Environmental Engineering Faculty Publications and Presentations

The current approaches for crash frequency and severity prediction in the Highway Safety Manual (HSM) do not employ vehicle mix information. In this research effort, we build advanced alternatives to HSM methods while incorporating vehicle mix information. Two model systems—(a) multivariate Poisson-lognormal model and (b) negative binomial-ordered probit fractional split model—are estimated by incorporating vehicle mix variables. The developed model systems can also capture the influence of observed and unobserved heterogeneity of different independent variables including vehicle mix variables. We estimate the models for three facility types including Urban Arterial 4-Lane Divided segments, Rural 3-Leg STOP-Controlled and Rural 4-Leg STOP-Controlled …

Characterizing Meteorological Patterns For Oregon's Winter Elevated Pm2.5 Concentrations From 2000-2023, Arielle Golda Sherbak

Dissertations and Theses

Valleys and basins are uniquely susceptible to the buildup of air pollution during the wintertime due to cool, dense air pooling under favorable meteorological conditions, a common occurrence in the Intermountain West. In Oregon, wintertime anthropogenic air pollution is primarily from woodburning stoves and heaters and although efforts have been made to reduce wintertime pollution, stagnation events continue to result in decreased air quality. This analysis aims to understand the relationship between air pollution in six Oregon counties and the associated meteorology in the cool season (November-March) using a 2000-2023 climatology.

This is completed through a composite analysis using key …

Immigrant Selection And Global Subordination: A Critical Response To Sahar Akhtar, Alex Sager

Philosophy Faculty Publications and Presentations

In 1908, the Canadian government passed a law to prevent immigration from British India, making the right to immigrate conditional on completing a continuous journey from the country of origin. Hundreds of thousands of European immigrants easily met this stipulation; doing so was nearly impossible for British Indians. In April 1914, Canadian authorities in Vancouver, British Columbia detained 376 British Sikh, Muslim and Hindu subjects travelling on the Japanese steamship Komagata Maru from the Punjab. The Komagata Maru incident, as it has come to be known, reminds us of the toxic role of immigration policy in promulgating anti-Asian racism in …

The Effect Of Mesoscale Frontal Waves On Landfalling Atmospheric Rivers And Their Associated Precipitation Over The Green River Watershed, Washington, Joseph Michael Riedl

Dissertations and Theses

In this study, the effect of mesoscale frontal waves (MFWs) on extreme precipitation (EP) in the Upper Green River Watershed (UGRW), Washington is investigated. 205 EP days (>95th percentile) are identified in the UGRW between the years 1980 and 2021. To characterize the range of large-scale meteorological conditions associated with EP days, the self-organizing map (SOM) approach is used to cluster daily integrated water vapor transport (IVT) on EP days. To further diagnose the meteorological drivers, composites of several other diagnostic fields are constructed for each SOM node and the preceding days. Together, these results illustrate common orientations of …

Probabilistic Intervals Around Population Forecasts: A New Approach With A Subnational Example Using Washington State Counties, David A. Swanson, Jeff Tayman

Publications, Reports and Presentations

Population forecasts produced by governments at all levels are used in the public sector, the private sector, and by researchers. They have been primarily produced using deterministic methods. This paper shows how a method for producing measures of uncertainty can be applied to existing subnational population forecasts while meeting several important criteria, including the concept of utility. The paper includes an assessment of the efficacy of the method by: (1) examining the change in uncertainty intervals it produces by population size and population growth rate; and (2) comparing the width and temporal change of the uncertainty intervals it produces to …

Synoptic-Scale Meteorological Patterns Associated With Extreme Precipitation Over The Contiguous United States And Concomitant Seasonal And Regional Variability, Amy M. Johnson

Dissertations and Theses

Seasonal and spatial variations of synoptic-scale weather patterns concurrent to extreme precipitation days, defined as days above the seasonal 95th percentile of the daily precipitation distribution, are characterized over a 44-year period (1980-2023) for the Contiguous United States (CONUS). Using atmospheric reanalysis data and a grid-cell centered approach, we construct seasonal anomaly composite patterns for sea level-pressure (SLP), integrated water vapor transport, 500 hPa geopotential height (Z500), and 300 hPa wind speed. Atmospheric variables known to be important for extreme precipitation. By interpolating composites for each grid cell onto the same polar coordinate grid relative to the grid cell we …

(De)Centralized Water Futures: Key Dimensions Of Infrastructure, Governance, And Operations, Alicia Dailey Cooperman, Jenny Linder Rempel, Ellis Adjei Adams, Alida Cantor, Manuela Muñoz Fuerte, Jeremiah Osborne-Gowey, Nicole J. Wilson, Cassandra L. Workman, Melissa Beresford, Leila M. Harris, Multiple Additional Authors

Geography Faculty Publications and Presentations

Water system centralization and decentralization have variously been promoted as key to achieving household water security and Sustainable Development Goal 6.1. We argue that the lack of specificity with which scholars and practitioners use the terms centralization and decentralization limits our understanding of different water system configurations and their impacts. In this Primer, we provide a framework for thinking about levels of (de)centralization across three linked system dimensions: infrastructure, governance, and operations and maintenance. We encourage those analyzing water systems to characterize (de)centralization with respect to these multiple dimensions, as well as the system's broader political-economic and hydro-climatic contexts. Emphasizing …

Estimating Historical Age-Sex Distributions Of A Tribal Population: A Case Study Of The Hopi, 1900 To 1940, David Swanson, Jeff Tayman

Publications, Reports and Presentations

Historical information on tribal populations in the United States is scattered and discontinuous. A significant part of the discontinuity is the gap between 1900 and 1970. This paper describes a process that may partially fill this gap by developing decennial age-sex data from 1900 to 1940. Where temporally consistent, we compare these estimates to those done by others. This work provides a point of departure for generating more demographic information about the Hopi from 1900 to 1940 and, ultimately, beyond 1970, a critical turning point regarding the increased availability of American Indian data from the U.S. Census Bureau. It also …

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 …

Projections Of Lightning‐Ignited Wildfire Risk In The Western United States, Dmitri A. Kalashnikov, John T. Abatzoglou, Frances V. Davenport, Zachary M. Labe, Paul C. Loikith, Danielle Touma, Deepti Singh

Geography Faculty Publications and Presentations

Cloud‐to‐ground (CG) lightning is a major source of summer wildfire ignition in the western United States (WUS). However, future projections of lightning are uncertain since lightning is not directly simulated by most global climate models. To address this issue, we use convolutional neural network (CNN)‐based parameterizations of daily June‐September CG lightning. CNN parameterizations of daily CG lightning occurrence at each grid cell use fields of three thermodynamic variables—ratio of surface Moist Static Energy (MSE) to 500 hPa saturation MSE, 700–500 hPa lapse rate, and 500 hPa relative humidity. Applying these parameterizations to the Community Earth System Model version 2 Large …

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 …

La Niña Effects On The Mjo Modulation Of North Pacific Atmospheric Rivers And Associated Western North American Precipitation, L. G. Fernandes, Paul C. Loikith, M. Mora

Geography Faculty Publications and Presentations

We investigate connections between the Madden‐Julian Oscillation (MJO) and North Pacific atmospheric rivers (ARs) and associated precipitation over North America during La Niña (LN) years. Overall, AR frequency is reduced over the northeastern Pacific and western North America in phases 2–5 of the MJO. However, under LN, increased AR activity appears over those regions in phases 4–6 and across the central North Pacific in Phase 3. Distinct effects of LN on the basic state and MJO contribute to the persistence of AR anomalous patterns in phases 3–6. For instance, MJO intensifies in Phase 3 under LN, favoring the coupling between …

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 …

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 …