Digital Commons Network^™

Diagnosing Non-Gaussian Temperature Distribution Tails Using Back-Trajectory Analysis, A. J. Catalano, P. C. Loikith, J. D. Neelin

Geography Faculty Publications and Presentations

Coherent regions exhibiting non-Gaussian 2-m temperature distribution tails are present across the globe, indicating changes in extreme temperatures under future warming may manifest in more complex ways than were the underlying distributions symmetric about the mean. To further the understanding of physical processes that govern temperature distribution tail shape, this work utilizes a back-trajectory model to diagnose mechanisms for extreme daily mean temperature development at select extratropical locations exhibiting non-Gaussian tails. Although characteristics such as direction, distance, and temperature evolution vary among back-trajectories associated with extreme temperature days, results reveal principal pathways for air parcel propagation associated with preferred patterns …

Socio-Ecological Perceptions Of Wildfire Management And Effects In Greece, Palaiologos Palaiologou, Kostas Kalabokidis, Andreas Troumbis, Michelle A. Day, Max Nielsen-Pincus, Alan A. Ager

Environmental Science and Management Faculty Publications and Presentations

Adapting to the growing frequency of catastrophic wildfires in Greece and mitigating their effects is a complex socio-ecological problem. We used an online survey to query more than 100 engaged stakeholders who can potentially influence possible legislation and fire management organizational reform, emphasizing civil protection agencies and research entities. We focused the questionnaire on the importance of different wildfire effects to understand which were considered negative or unacceptable, indifferent, or positive. For fire prevention, we examined the range of acceptance and views on fuel management and fire use activities that are limited in extent or not allowed in Greece. We …

The Critical Energy Infrastructure (Cei) Hub: A Look Into The Seismic Fragility Of Oregon’S Fuel, Annecy Bal

Civil and Environmental Engineering Undergraduate Honors Theses

This research evaluates the seismic vulnerability of the Critical Energy Infrastructure (CEI) Hub and the associated fuel repercussions for the expected 9.0 magnitude earthquake along the Cascadia Subduction Zone. The tanks in the CEI hub are analyzed based on size and content. The owners and secondary containment areas are discussed using the same parameters. Various analysis techniques are reviewed to determine the most appropriate seismic fragility estimate for the site. The seismic vulnerability is analyzed using fragility curves by Hazus, American Lifeline Alliance, and D'Amico. The fragility curves are applied to the CEI Hub to determine expected damage and the …

Portland State Magazine, Portland State University. Office Of University Communications

Portland State Magazine

PSU’s alumni magazine, published 2-3 times a year. In this issue: Take a fond and fascinating look at PSU’s past through 21 objects and artifacts; try your hand at the Know Your Viks quiz; three faculty members answer the question: What have we learned from COVID-19?; from extreme fire to vanishing ice, PSU scientists are tracking the Northwest’s transformation; a new program explores the intersection of costuming, sculpture and fashion; how three student athletes adjusted to COVID-19’s new (ab)normal; four times alumni saved PSU from threats both existential and symbolic, and more.

Nhanes Iii Mortality Follow Up: Social Determinants Creating Disparity Within The Health Outcomes Of Persons With Diabetes, Claire B. Adams

University Honors Theses

Given the recent research into the social determinants affecting health outcomes, the goal of this thesis is to examine whether a non-urban setting, among other social determinants of health, increases the risk of mortality among the United States diabetic population. We examined the relationship of urban and non-urban diabetes rates among those aged 40-74 years using a national sample of diabetic and nondiabetic Americans. The data was pulled from the Third National Health and Nutrition Examination Survey (NHANES III) which was conducted from 1988 to 1994. After excluding pregnant women, those who did not complete a fasting AM glucose, and …

Maximum Coverage Facility Location Drone Routing Problem With Multiple Trip Stops, Marie Roza

Civil and Environmental Engineering Undergraduate Honors Theses

Integer linear optimization can be used to formulate routing problems as models to find optimal solutions given a set of inputs and constraints. In this research, Chauhan et al.'s publication, "Maximum coverage capacitated facility location problem with range constrained drones," is expanded upon by modeling a facility location problem with two-to-one drone deliveries. The model analyzes a set of potential facilities that are available to meet the demands of a set of demand points. The drone delivery routes are modeled with the assumption that each opened facility is assigned one drone that can fulfill up to two demand points’ demands …

The Impact Of Ride Hail Services On The Accessibility Of Nonprofit Services, Dyana P. Mason, Miranda Menard

TREC Final Reports

Nonprofit organizations are responsible for providing a significant level of human services across the United States, often in collaboration with government agencies. In this work, they address some of the most pressing social issues in society – including homelessness, poverty, health care and education. While many of these organizations consider location and accessibility crucial to supporting their clients – often locating services near bus or train stops, for example – little is known about the impact of new technologies, including ride hail services like Lyft and Uber, on nonprofit accessibility. These technologies, which are re-shaping transportation in both urban and …

Rockwood Identity Project, Phil Longenecker, Ana Navia, Natalie Chavez, Francisco Ibarra, Max Nonnamaker, Eric Trinh

Master of Urban and Regional Planning Workshop Projects

The Rockwood Identity Atlas is a data collection initiative that aims provide the Rockwood Community Development Corporation (CDC) with information about the community it serves. Through maps, data, and stories that highlight the identity, geography, and living conditions of the Rockwood community, this atlas aims to support Rockwood CDC and partner organizations better understand the challenges and opportunities facing the neighborhood. Although the atlas is an attempt to synthesize a more unified narrative about the identity of Rockwood, the report can be viewed in three distinct sections. We explored the three sections in three phases during March-May 2021:

• Phase I: …

Equity And Sustainability Planning For Employment Zones In Tigard, Mac Cunningham, Gregory Mallon, Rob Hemphill, Rebecca Rockom, Paul Runge

Master of Urban and Regional Planning Workshop Projects

As the City of Tigard updates its zoning code for its industrial and commercial lands, opportunity exists to center equity and sustainability in the project. Tigard would be the first city to implement a zoning reform with these values integrated into the process. Further, through the operationalizing of equity in sustainability in the zoning code, Tigard can build a healthy community, one resilient to economic and environmental changes and nurturing for businesses of diverse backgrounds and communities. Though no other city we could identify has explicitly implemented both equity and sustainability in their zoning code, there are lessons from other …

Community Engagement In Oregon Water Governance: Evaluating A State Water Policy And A Collaborative Q Methodology Research Project, Clare T. Mcclellan

Environmental Science and Management Professional Master's Project Reports

This work was primarily conducted by the Oregon Water Stories Project, an interdisciplinary research group at Portland State University, in collaboration with the Willamette Partnership, an environmental non-profit in Portland, and with additional involvement from community partner organizations across the state. The overarching goal of this paper is to explore the challenges and opportunities present at the intersections of water management, stakeholder engagement, community-engaged research, and environmental justice. This study investigates this nexus first through an evaluation of Oregon’s 100 Year Water Vision that points to areas for increased integration of environmental justice principles in water policymaking. In the second …

A Community Of Fear: Emotion And The Hydro-Social Cycle In East Porterville, California, Michael Egge, Idowu Ajibade

Geography Faculty Publications and Presentations

Broader governance challenges driving water insecurity globally are well documented in the literature, however the power-laden relationships and emotions that shape water access at the household and community levels are yet to be fully investigated, especially in the context of water consolidation projects. In this article, we examine the role of emotions in mediating access to water and in the production of resource struggles among marginalized communities, existing outside of conventional regulatory frameworks. We bring together two relational approaches – the hydro-social cycle and emotional political ecology – to examine water insecurity and how it manifests in the historically disadvantaged …

Values Of Young Adults In An Increasingly Secular World, Joseph Daniel Eichenlaub

Dissertations and Theses

This thesis examines data from a religion and values survey entitled Young Adults and Religion in a Global Perspective (YARG) conducted in the spring of 2018. The data for this research comes from a sample of college undergraduates from diverse nations, Portland State being one of the sites sampled. This research investigates three main research questions: Do the values of college-age youth tend to be more individualistic, the less religious that they are? Do the irreligious still maintain moral values? And is irreligiosity related to a cosmopolitan-humanitarian outlook? This research finds that the overall sample is individualistic while still holding …

Evaluation Of Manual And Semi-Automated Deep-Seated Landslide Inventory Processes: Willapa Hills, Washington, Tiffany E. Justice

Dissertations and Theses

Recent advances in remote sensing data and technology have allowed for computational models to be designed that successfully extract landforms from the landscape. The goal of this work is to create one such semi-automated model to extract deep-seated landslides located in complex geomorphic terrain. This is accomplished using geographic object-based image analysis (GEOBIA) techniques, considered by leaders in the field of image analysis to have an advantage over traditional automated classification methods. GEOBIA methods can mimic human visual interpretation by including more characteristic features used to assess the relationship between image data and the ground surface such as color reflectance …

Webinar: Transit Impacts On Jobs, People And Real Estate, Arthur C. Nelson, Kristina Currans, Robert Hibberd

TREC Webinar Series

This webinar has six elements: Introducing themes related to how transit should affect the location of jobs and people, and how real estate should respond; Creating a research typology of different landscapes served by transit that is also useful in transit planning; Analyzing how transit stations influence shifts in the regional share of jobs, people and housing; Investigating how transit station proximity influences mode choice and household transportation budgets; Estimating the effect of transit station proximity on real estate rents by type of transit system and type of real estate, and the extent to which outcomes are consistent with theory; …

Polymorphism And Polysemy In Images Of The Sefirot, Martin Zwick

Complex Systems Faculty Publications and Presentations

The resurgence of interest in Kabbalistic diagrams (Segol, Busi, Chajes) raises the question of how diagrams function in religious symbolism. This question can be approached via methods used in the graphical modeling of data. Specifically, graph theory lets one define a repertoire of candidate structures that can be applied not only to quantitative data, but also to symbols consisting of qualitative components. A graph is a set of nodes and links between nodes. What nodes and links are is unspecified in this definition. The Kabbalistic Ilan is – partially – a graph. The Sefirot are its nodes; the paths connecting …

The Influence Of Microsite Conditions On Early Performance Of Planted Nothofagus Nitida Seedlings When Restoring Degraded Coastal Temperate Rain Forests, Jan R. Bannister, Manuel Acevedo, German Travieso, Andres Holz, Nicole Galindo

Geography Faculty Publications and Presentations

Widespread impacts of changes in land use, climate, and disturbance regimes continue to affect mature forests and their subsequent post-disturbance recovery. In South American temperate rainforests, the recovery of the original composition, structure, and ecological services of now-degraded old-growth forests is additionally hampered by the aggressive competition that the native Chusquea bamboo understory exerts on juvenile trees, thus arresting ecological succession. In this study, we aim to evaluate the early performance of Nothofagus nitida seedlings (pioneer tree species that tolerate shade) planted beneath nurse canopy following removal of the understory, and to define which microsite conditions can facilitate N. nitida …

The Soniferous Experience Of Public Space: A Soundscape Approach, Kenya Dubois Williams

Dissertations and Theses

This research explores the awareness and perceptions of practitioners regarding the role of the soundscape in understanding and managing public spaces. Without considering the role of the soundscape as part of public spaces, urban planners, designers, and policy officials cannot accurately engage in placemaking that provides a complete sensory experience. The antiquated practice of enforcing noise codes has been the traditional approach to mitigate noise (unwanted sounds). However, sound is an overlooked element in the sensory experience of cities and how individuals and communities construct a "sense of place." This study considers the implications of the soundscape approach and soundwalks …

The Perceptions Of Rural Teachers Engaged In Environmental Education Professional Development Workshops: A Case Study Of The Alder Creek Community Forest And The Story Of Your Place, Bryan R. Benz

Dissertations and Theses

Environmental issues can be difficult for people to understand and for teachers to address in their classrooms. Issues such as climate change and ozone depletion are difficult to comprehend and present a challenge for most people to understand thoroughly the complexity of these environmental challenges. Professional development programs could provide the tools for teachers to improve their environmental literacy and a pathway for learning new methods for engaging their students. However, in rural Oregon, where professional development opportunities are scarce, teachers rely on a lean supply of organizations to provide these experiences. Alder Creek Community Forest, a nonprofit organization, provides …

Gas Stations And The Wealth Divide: Analyzing Spatial Correlations Between Wealth And Fuel Branding, Jean-Carl Ende

Dissertations and Theses

The gasoline refining and sales industry has many peculiarities. One such oddity is a difference in sales, distribution and pricing between branded and unbranded gasolines. Although fuels leave the refinery a uniform commodity, branding determines entirely different marketing and pricing schemes, with entirely different volatility and risk premiums. In order to determine if this volatility is felt evenly across all wealth demographics, this study uses t-tests and CART models to analyze income, home value and other wealth-based indicators in the areas surrounding gas stations, to determine if there is a correlation between branding and wealth. The results show the wealth …

Translating Land Justice Through Comparison: A Us-French Dialogue And Research Agenda., Megan Horst, Nathan Mcclintock, Adrien Baysse-Lainé, Ségolène Darly, Flaminia Paddeu, Coline Perrin, Kristin Reynolds, Christophe-Toussaint Soulard

Urban Studies and Planning Faculty Publications and Presentations

In this discussion piece, eight scholars in geography, urban planning, and agri-food studies from the United States (US) and France engage in a bi-national comparison to deepen our collective understanding of food and land justice. We specifically contextualize land justice as a critical component of food justice in both the US and France in three key areas: access to land for cultivation, urban agriculture, and non-agricultural forms of food provisioning. The US and France are interesting cases to compare, considering the differences and similarities in their colonial and agricultural histories, persistent and systemic race and class-based inequities in land access, …

Open Education Week: Open Pedagogy And Student Content Creation, Shane Abrams, Frank Granshaw, Veronica Hotton

Open Education Week 2021

Open Pedagogy is the practice of engaging students in content creation through "renewable assignments" so that their work lives on beyond the course and has an authentic audience. In this workshop, you will learn about how to structure an Open Pedagogy assignment and will see examples from faculty who have designed their own renewable assignments.

Environmental Conditions Associated With Natural Shade-Tolerant Conifer Regeneration In Forest Park, Portland, Oregon, Matt Cook

Urban Ecosystem Research Consortium of Portland/Vancouver

Forest Park is a 5,100-acre urban forest located in Portland Oregon. Due to its proximity to urban development the park has been impacted by various anthropogenic stressors including logging, fragmentation, invasive species, air pollution and recreation use. This legacy of land degradation coupled with natural disturbances has resulted in changes to forest structure, composition, and function—threatening the long-term sustainability of the park. Forest Park provides many ecosystem services, and the local community depends on its sustained ecological integrity. Past research in Forest Park had identified a lack of Western hemlock and Western red cedar seedlings and saplings in the most …

Regulators And Utility Managers Agree About Barriers And Opportunities For Innovation In The Municipal Wastewater Sector, Alida Cantor, Luke Sherman, Anita Milman, Michael Kiparsky

Geography Faculty Publications and Presentations

Despite pressures to improve performance and reduce costs, innovation in the municipal wastewater sector in the United States has been notoriously slow. Previous research has suggested that wastewater utility managers may see regulation as a barrier to developing and deploying new technologies. To better understand how environmental regulation may fuel or hinder innovation in this sector, we conducted a nationwide survey of wastewater utility managers and wastewater regulators in the United States, asking both populations about their perceptions of specific aspects of regulation and innovation. Survey results revealed broad agreement between the two groups that funding and capacity, regulatory relationships, …

Pacific Northwest Littoral Data, Curt D. Peterson, Kara E. P. Kingen

Geology Faculty Datasets

This document contains five data tables in PDF file formats, that are used to characterize littoral subcell (beach, river mouth, and inner-shelf) conditions in the Pacific Northwest (PNW) region (Washington, Oregon, and Northern California). These data have been compiled from pre-existing data sets (see citations in Table notes and References, below) for the purposes of predicting possible beach erosion from potential future sea level rise (SLR), as introduced in Kingen (2018) and Peterson et al. (2019, 2020a,b). The five data tables include Heavy-mineral tracers (Table 1), Heavy-mineral data (normalized) (Table 2), Subcell beach profile settings (Table 3), Subcell beach profile …

Communities Of Place Vs Communities Of Interest In The United States: Citizen Information And Locally Unwanted Land Uses In Eia, Hal T. Nelson, Samantha Hass, Kirsten Sarle, Alex Renirie

Public Administration Faculty Publications and Presentations

Highlights

• The distances from citizens' addresses to the project were geocoded.
• Citizen comments either contested knowledge in the EIA or provided missing information.
• Type of Community → Concern/Type of Information →Project Outcome
• Contested knowledge on the need for the project was important.
• Institutional preferences were important in explaining the outcomes.

How Transitional, Restorative, And Transformative Justice Will Address Racial Injustice, Isabelle Garnand

University Honors Theses

Racism is still deeply embedded in the United States. Dominant white cultural narratives do not acknowledge African-Americans’ experiences, and previous methods of addressing it have not been sufficient. Through a literature review using PsychInfo, Google Scholar, and Google the author researched how transitional, restorative, and transformative justice have been used in the U.S. and other countries to establish what methods of each would be best adopted for the U.S. The author proposes change through addressing racism on the state and county level using these multiple levels of justice throughout the U.S. to create space to perpetuate conversations, actions, and beginning …

What Is The Impact Of Economic Stimulus Measures On Covid-19 Mortality Rates?, Stephanie C. Santaguida

University Honors Theses

This inquiry seeks to establish the degree to which economic stimulus measures impact COVID-19 mortality rates. There appears to be an inverse correlation between domestic social spending and COVID-19 deaths. While confirmed infections are the most reliable predictor of mortality rates, trust in government is an important factor to consider when public compliance with health directives determines the degree of epidemiological risk in each country. Although most economists agree that stimulus monies directed to low-income individuals to prevent financial collapse were appropriate, there is some dissention with regard to the type and size of such cash infusions. Nonetheless, behavioral economists …

Combating Ecosystem Collapse From The Tropics To The Antarctic, Dana M. Bergstrom, Barbara C. Wienecke, John Van Den Hoff, Lesley Hughes, David B. Lindenmayer, Tracy D. Ainsworth, Christopher M. Baker, Lucie Bland, David M J S Bowman, Shaun T. Brooks, Josep G. Canadell, Andrew J. Constable, Katherine A. Dafforn, Michael H. Depledge, Catherine R. Dickson, Norman C. Duke, Kate J. Helmstedt, Andrés Holz

Geography Faculty Publications and Presentations

Globally, collapse of ecosystems-potentially irreversible change to ecosystem structure, composition and function-imperils biodiversity, human health and well-being. We examine the current state and recent trajectories of 19 ecosystems, spanning 58° of latitude across 7.7 M km , from Australia's coral reefs to terrestrial Antarctica. Pressures from global climate change and regional human impacts, occurring as chronic 'presses' and/or acute 'pulses', drive ecosystem collapse. Ecosystem responses to 5-17 pressures were categorised as four collapse profiles-abrupt, smooth, stepped and fluctuating. The manifestation of widespread ecosystem collapse is a stark warning of the necessity to take action. We present a three-step assessment and …

Black Magic & White Supremacy: Witchcraft As An Allegory For Race And Power, Nicholas Charles Peters

University Honors Theses

This paper examines dramatic representations of witchcraft in contemporary television, and their roots in stereotypes from 17th century dramas, exploring the function of witchcraft as an allegory for race and power in America. Television is a form of cultural media that can explore these stereotypes and create representation that influences the audience's perception of society, and can function as a call to action for social justice.

Webinar: Land Use And Transportation Policies For A Sustainable Future, Liming Wang

TREC Webinar Series

Even though there are tremendous uncertainties in the timing and evolution path of the Autonomous Vehicles (AV) technology, it may become a likely reality within most MPOs' long-range regional transportation plan horizon of twenty years. Yet a recent survey of the largest MPOs in the US indicates only one of them "even mentions driverless, automated, or autonomous vehicles in its most recent RTP". One of the uncertainties in assessing the impacts of AV is their direction: on one hand, self-driving cars could increase VMT by increasing roadway capacity, lowering costs of travel; on the other, they may reduce VMT by …