Digital Commons Network^™

Phase Stability Of Lead Phosphate Apatite, Jiahong Shen, Dale Gaines Ii, S. Shahabfar, Zi Li, Dohun Kang, Sean Griesemer, Adolfo Salgado-Casanova, Tzu-Chen Liu, Yi Xia, Multiple Additional Authors

Mechanical and Materials Engineering Faculty Publications and Presentations

Recently, Cu-substituted lead apatite LK-₉₉ was reported to have room-temperature ambientpressure superconductivity. Here we utilize density functional theory (DFT) total energy and harmonic phonon calculations to investigate the thermodynamic and dynamic stability of two lead phosphate apatites in their pure and Cu-substituted structures. Though Pb₁₀(PO₄)₆O and Pb₁₀(PO₄)₆(OH)₂ are found to be thermodynamically stable (i.e., on the T=₀K ground state convex hull), their Cu-substituted counterparts are above the convex hull. Harmonic phonon calculations reveal dynamic instabilities in all four of these structures. Oxygen vacancy formation …

Formalizing Stack Safety As A Security Property, Sean Noble Anderson, Roberto Blanco, Leonidas Lampropoulos, Benjamin C. Pierce, Andrew Tolmach

Computer Science Faculty Publications and Presentations

The term stack safety is used to describe a variety of compiler, runtime, and hardware mechanisms for protecting stack memory. Unlike “the heap,” the ISA-level stack does not correspond to a single high-level language concept: different compilers use it in different ways to support procedural and functional abstraction mechanisms from a wide range of languages. This protean nature makes it difficult to nail down what it means to correctly enforce stack safety.

Evaluating How Well Active Fault Mapping Predicts Earthquake Surface-Rupture Locations, Chelsea Scott, Ramon Arrowsmith, Rachel Adam, Christopher Madugo, Joseph Powell, John Ford, Brian Gray, Ashley Streig, Multiple Additional Authors

Geology Faculty Publications and Presentations

Earthquake surface-fault rupture location uncertainty is a key factor in fault displacement hazard analysis and informs hazard and risk mitigation strategies. Geologists often predict future rupture locations from fault mapping based on the geomorphology interpreted from remote-sensing data sets. However, surface processes can obscure fault location, fault traces may be mapped in error, and a future rupture may not break every fault trace. We assessed how well geomorphology-based fault mapping predicted surface ruptures for seven earthquakes: 1983 M 6.9 Borah Peak, 2004 M 6.0 Parkfield, 2010 M 7.2 El Mayor–Cucapah, 2011 M 6.7 Fukushima-Hamadori, 2014 M 6.0 South Napa, 2016 …

Association Between Fluoride Exposure And Blood Pressure, Man Hung, Amir Mohajeri, Teresa Vu, Hyma Moparthi, Martin S. Lipsky

Institute on Aging Publications

Objectives: This study investigated whether fluoride was associated with an increased prevalence of high blood pressure (BP) among adolescents in the United States. Methods: The study sample consisted of 2015–2016 National Health and Nutrition Examination Survey participants aged 13–17 years. Independent-samples t-tests, Chi-square tests, and regression models were used to analyze the data. Results: A total of 814 participants met the study criteria. The findings showed that the proportion of patients with high levels of water or plasma fluoride in the high BP group was higher than that in the normal BP group. However, after adjusting for sociodemographic covariates, neither …

Cullin 3–Mediated Regulation Of Intracellular Iron Homeostasis Promotes Thymic Invariant Nkt Cell Maturation, Emily L. Yarosz, Ajay Kumar, Jeffrey Singer, Cheong-Hee Chang

Biology Faculty Publications and Presentations

The E3 ubiquitin ligase cullin 3 (Cul3) is critical for invariant NKT (iNKT) cell development, as iNKT cells lacking Cul3 accumulate in the immature developmental stages. However, the mechanisms by which Cul3 mediates iNKT cell development remain unknown. In this study, we investigated the role of Cul3 in both immature and mature thymic iNKT cells using a mouse model with a T cell–specific deletion of Cul3. We found that mature iNKT cells lacking Cul3 proliferated and died more than wild-type cells did. These cells also displayed increased glucose metabolism and autophagy. Interestingly, we found that tight regulation of iron homeostasis …

“Tradish-Ish”: Call Me By My Name: The Language Of Calls For Native Artists, Jessica Mehta

Amplify: A Journal of Writing-as-Activism

“Tradish-ish: Call Me by Your My Name” examines the recent language used in open calls for Indigenous works of public art. It explores which terms are "trending" to refer to these artists, who is behind these calls, and what this means for Indigenous artists.

How Unequal Access To Personal And Professional Networks Impacts Success Among Construction Apprentices, Cameron Elliot Arnold

Dissertations and Theses

The construction industry is still primarily white male dominated, and while there is significant research on gendered experiences in the trades, there is not research on experiences and attitudes towards support that occurs outside of the trades across gender and other intersectional identities. My study aims to start filling the gap and answer the questions: How does access to personal and professional networks impact success among Oregon apprentices? How is access to and attitudes towards receiving support impacted by gender and race? To answer these questions this study uses qualitative interviews of Oregon apprentices who completed or terminated in 2018-2019. …

Rift-Induced Disruption Of Cratonic Keels Drives Kimberlite Volcanism, Thomas M. Gernon, Stephen M. Jones, Sascha Brune, Thea K. Hincks, Martin Palmer, John C. Schumacher, Rebecca M. Primiceri, Matthew Field, William L. Griffin, Suzanne Y. O'Reilly, Derek Keir, Christopher J. Spencer, Andrew S. Merdith, Anne Glerum

Geology Faculty Publications and Presentations

Kimberlites are volatile-rich, occasionally diamond-bearing magmas that have erupted explosively at Earth’s surface in the geologic past^1,2,3. These enigmatic magmas, originating from depths exceeding 150 km in Earth’s mantle¹, occur in stable cratons and in pulses broadly synchronous with supercontinent cyclicity⁴. Whether their mobilization is driven by mantle plumes⁵ or by mechanical weakening of cratonic lithosphere^4,6 remains unclear. Here we show that most kimberlites spanning the past billion years erupted about 30 million years (Myr) after continental breakup, suggesting an association with rifting processes. Our dynamical …

Collaborative Action In Informal Social Networks Of Wildfire Managers In Northwestern Wyoming, Hannah Lynn Spencer

Dissertations and Theses

Wildfire is a cross-boundary, collective action issue. Previous research has demonstrated the importance of collaborative relationships in wildfire for purposes such as increasing capacity, trading information, and facilitating landscape-scale mitigation projects. However, a stakeholder's location in social networks, as well as personal factors, may impact their collaboration. Furthermore, stakeholders must prioritize their own organizational goals and responsibilities, which may differ from those of their collaborators. I used interview and survey methods to investigate these questions in the context of wildfire management professionals in northwestern Wyoming. For the interviews, I selected 12 individuals with high betweenness centrality who were involved in …

Developing Public Service Leadership: Understanding The Field Immersion/Comparative Cases Model For Mid-Career Professional Education In Environment And Natural Resources Leadership, Erin M. Steinkruger

Dissertations and Theses

Public administrators in the United States face increasingly complex challenges and are called to leadership by position and in practice. In a hyper-pluralistic society, individuals must lead from where they sit, arbitrating value differences in day-to-day functions and taking on adversity and uncertainty in pursuit of the public good. These individuals are served by a variety of leadership training programs both internal and external to their organizations. This study characterizes the field immersion/comparative cases (FICC) model for public service leadership development and uses a grounded theory approach to build understanding about how individuals learn about leadership; what learning outcomes emerge …

Understanding Veteran Perceptions About Mental Health And Its Treatment, Quinn Turner Stoddard

Dissertations and Theses

Mental health illnesses are a growing issue for a large part of the country, and veterans in particular are vulnerable to the numerous negative effects they pose. Despite the high number of people that may benefit from treatment, a variety of issues with trust, stigma, and attitudes may act as barriers to care utilization. In response, this study investigated the perceptions that veterans within the Pacific Northwest hold in regards to mental health treatment as well as their intentions to seek it out should they require it. Using the integrated model of behavioral prediction (IMBP), data was gathered about veterans’ …

Communion Anthropoid, Joshua Stanek

Dissertations and Theses

In National Lampoon's Vegas Vacation, a man of good will offers all he has to a dear brother-in-law--recognizing the snakes he keeps as toys, the camper, the stones, dirt, and arid shrubbery are likewise dear to him. They go out to the desert at night and dig shallow holes, seemingly at random. Their imprecision is surprisingly fruitful. Imagine the constellation they made for the stars. In Communion Anthropoid, I am digging shallow holes in the dark with a mind to unearth what I believe I have lost. The dearness, I suppose. These poems vary in form from eight …

Confronting Web3 Technology: Opportunities, Challenges And Community Formation, Christopher-John Rogers

Dissertations and Theses

The emergence of blockchain technology created an entire industry of innovative new digital assets--or tokens--and diverse new fields of expertise founded on ideological aspirations of a new World Wide Web that reimagines digital value transfer through decentralization and disintermediation. Experimentation in the so-called "Web3" industry produces rich new fields of ethnographic study revealing the experiences of diverse individuals navigating novel technological capabilities which give way to new avenues of identity formation, community building, and ecosystem creation. These exciting new endeavors come with difficult challenges threatening the realization of ambitious visions for digital futures. Ethnographic research conducted through discourse analysis, participant …

Radical Urban Natures: Mitigating Urban Heat With Nature-Based Techniques In Portland, Oregon, Heather Day-Melgar

Dissertations and Theses

Anthropogenic rising heat associated with climatic changes in the built environment has become a serious global issue. The built environment is often comprised of impermeable, paved surfaces, lack of vegetation to make way for development, tree removal, and loss or alteration of urban waterways, which leads to a degraded ecosystem for humans and non-human life, and less of an ability for carbon capture, all of which contribute to higher urban temperatures. This alteration of the existing natural environment leads to populations often unable to conceptualize that a built environment is still an ecosystem, and restoration is possible and necessary for …

Beyond “Glittering Hope”: Introducing Max Stirner’S Unique Possibilities To Social Work, Erica Fonseca

School of Social Work Faculty Publications and Presentations

Max Stirner (1806-1856) is an iconoclastic 19th-century philosopher who, despite a period of obscurity, has remained somewhat influential – particularly within segments of the anarchist milieu. This conceptual article maintains Stirner’s writing has something to offer social work thinking and practice. Using Stirner’s most influential work, The Ego and Its Own, I will present three of Stirner’s terms: Specters, The Creative Nothing, and Ownness. I conclude with a presentation of three “unique” prospects for social work that draws from Stirner’s anti-teleological and anti-foundationalist approach to liberation.

Language Was My Home: I Had It In My Mind - But Not On My Tongue (Grappling With Aphasia), Corinne Othenin-Girard

Amplify: A Journal of Writing-as-Activism

Language was my home. I had a prolonged aphasic speech and writing block. Felt as if I was in exile. I slowly fought my way back amongst the ‘language owners’. Because of my funny stroke-induced accent, people tend to treat me like a foreigner. I began to write lyrics and prose to improve my language ability and also to show ‘them’, as well as myself, that I can do it. And that I can say again: language is my home.

A Student Bill Of Rights, Balkhiis Noor, Olivia Monestime, Julia Hines, David Peterson Del Mar

Amplify: A Journal of Writing-as-Activism

This Student Bill of Rights was created by two sections of Immigration, Migration, and Belonging, a year-long Freshman Inquiry class largely composed of students from under-represented backgrounds.

"Where Is Your Accent From?": The Voice Of My Identity, Robert Northman

Amplify: A Journal of Writing-as-Activism

This essay probes the role of language in how it contributes to the construct of one's identity. The author discusses lived experiences centered on the the perceptions of accented English that is actually African American Vernacular English. The essay explores how these experiences were formed and how they developed over the course of the author's lifetime. The author also discusses ways in which language has caused both comfort and conflict, and provides a glimpse into a unique perspective that can contribute to a greater understanding of the power and importance of language.

People And Power: Person-First Language Usage And The Criminal Justice System, Casey E. Orr

Amplify: A Journal of Writing-as-Activism

Language is power. Word choice and terminology, especially those referring to people, are expressions of societal norms and institutional power. Dehumanizing crime-first terms and labels are abundant and common in criminal justice contexts despite being protested by system-involved individuals and activists. Instead, many advocate for person-first terms wherein identifying language emphasizes an individual’s humanity. With a peace-focused anthropological framework, this paper presents the case for person-first language in criminal justice contexts. It is evident that adopting first-person language usage regarding the criminal justice system is necessary after analyzing and considering the multiple sources, such as the voices of those who …

Using Queer Of Color Theory To Analyze Latinidad, Maria I. Castro-Mendoza

Amplify: A Journal of Writing-as-Activism

Queer of Color Theory (QOCT) has emerged as a new field of study with the rise of LGBTQ+ visibility in the modern day political landscape. QOCT is an extended analysis of queer theory that explicitly and intentionally takes into account race, imperialism, and colonialism. Queer of color theory can be used to create or expand upon an already existing theory, and has roots in Black feminism. Using queer of color theory as a method of analysis, this essay discusses the black and indigenous erasure within the Latinidad movement and seeks to examine those who have been systemically left out of …

Participatory Mapping Of Tree Equity, Preferences, And Environmental Justice In Portland, Or, Katharine Vezin Gregory

Dissertations and Theses

Studies have shown that marginalized communities do not have the same access as more privileged groups to urban tree canopy cover due to historic and current processes of discrimination and disinvestment. This study explores the lived experiences, narratives, and values related to trees and greenspaces for residents of Portland, OR, through participatory mapping focus groups. It uses an environmental justice and urban political ecology framework to examine how values, lived experiences, and narratives compare for Portland residents across neighborhoods, socio-economic status, and racial or ethnic identity and how the changes that matter to residents can inform more just urban greening …

Community Supervision: Perspectives Of Probation And Parole Officers And Supervisors On Key Supervision Approaches And Policy Changes, Asianna Nelson

Dissertations and Theses

This study explores the differences across community supervision approaches in Oregon and how the implementation of state policies has influenced this field. Therefore, this study seeks to answer the following research questions: 1) How do POs and supervisors define their approach to community supervision? 2) How have POs and supervisors experienced shifts in state policy? Fourteen line staff and supervisors from seven Oregon probation and parole agencies were interviewed to answer these research questions. The findings suggest that most agencies are using evidence-based practices and implementing state policies. However, variation exists across the represented agencies in the experiences and perceptions …

Systematic Characterization Of Power Side Channel Attacks For Residual And Added Vulnerabilities, Aurelien Tchoupou Mozipo

Dissertations and Theses

Power Side Channel Attacks have continued to be a major threat to cryptographic devices. Hence, it will be useful for designers of cryptographic systems to systematically identify which type of power Side Channel Attacks their designs remain vulnerable to after implementation. It’s also useful to determine which additional vulnerabilities they have exposed their devices to, after the implementation of a countermeasure or a feature. The goal of this research is to develop a characterization of power side channel attacks on different encryption algorithms' implementations to create metrics and methods to evaluate their residual vulnerabilities and added vulnerabilities. This research studies …

In Their Words: Prospective Teachers' Experiences As A Context For Investigating Their Views Of Authority In A Mathematics Classroom, Brenda Lynn Rosencrans

Dissertations and Theses

Mathematics teacher educators enact inquiry-based preparatory courses with the underlying expectation that their students (prospective teachers) will take ownership (authority) of their mathematical learning through sharing their ideas and collaboratively discussing the reasonableness of their shared ideas. Yet, prospective teachers' expectations are often not yet in alignment with those of mathematics teacher educators, instead they enter these courses expecting their instructors to provide clear examples and directions for how to solve mathematics problems. This project investigates this dynamic through an authority lens, seeking to understand and characterize different views of authority prospective teachers hold and the impact these views have …

Who Puts The "Support" In Supportive Housing? The Impact Of Housing Staff On Resident's Well-Being, And The Potential Moderating Role Of Self-Determination, Kenna Estell Dickard

Dissertations and Theses

The provision of residential and community-based services for individuals with serious mental illness (SMI) has become increasingly important following the deinstitutionalization movement. Much of the existing research on supportive housing focuses on housing outcomes rather than exploring how the program helps its residents thrive in the broader community. This study draws upon data collected from 176 people with SMI residing in 16 supportive housing locations in Portland, Oregon. Analyses employed an ecological approach, exploring how housing staff support relates to residents' well-being at three levels of analysis: loneliness (interpersonal level), residential satisfaction (housing and neighborhood level), and sense of community …

Reclaiming The Past And Transforming Our Future: Introduction To The Special Issue On Foundational Contributions Of Black Scholars In Psychology, Fanita A. Tyrell, Helen A. Neville, José M. Causadias, Kevin O. Cokley, Karlyn R. Adams-Wiggins

Psychology Faculty Publications and Presentations

The contributions of Black scholars to psychology have been erased or marginalized within mainstream, U.S.-centered psychology. As such, psychologists and trainees have little exposure to strengths-based theories and schools of thought that center and humanize the experiences of people of African descent. This special issue intervenes on anti-Black racism at the epistemic level by curating a review of foundational contributions by diverse Black scholars in psychology and related fields. The special issue is organized around five integrative and overlapping themes: (a) Black scholars who have written on topics related to race, racism, and racial identity; (b) schools of thought that …

At The Heart Of Our Communities: Parent/Caregiver & Youth Leadership, Deschutes County System Of Care, Callie H. Lambarth

Center for Improvement of Child and Family Services Publications

In lieu of an abstract, here are the vision and goals of the Deschutes County System of Care:

Vision
The vision of System of Care is to create an array of services and supports for children, youth and young adults in Deschutes County that are youth- and family-driven, community-based, and culturally and linguistically responsive.

Goals

1. Collaboration between services, families, and youth to improve the system of supports that serve children, youth and young adults with complex and significant mental health needs.
2. Leadership that includes youth and parents/caregivers impacted by the System of Care to advise on service processes, identify system …

What Explains Spatial Cariations Of Covid-19 Vaccine Hesitancy?: A Social-Ecological-Technological Systems Approach, Arun Pallathadka, Heejun Chang, Daikwon Han

Geography Faculty Publications and Presentations

While COVID-19 vaccines have been available since December 2020 and efforts have been made to vaccinate the maximum population, a large number of people are continuing to be hesitant, prolonging the pandemic in the US. While most previous studies investigated social, economic, and demographic variables that are associated with COVID-19 vaccine hesitancy, we added ecological and technological variables to better understand the spatial variations of vaccine rates in the contiguous United States using spatial regression and geographically weighted regression (GWR) models. We aim to identify spatially varying social, ecological, and technological factors that are associated with COVID-19 vaccination rates, which …

Psu Student Housing Insecurity Interim Report, Jacen Greene, Homelessness Research & Action Collaborative, Portland State University

Homelessness Research & Action Collaborative Publications and Presentations

EXECUTIVE SUMMARY

Project Background

This study on student housing insecurity and homelessness was funded as part of a HUD FY2023 Community Project Funding Opportunity awarded to Portland State University. Phase 1 of the study, which led to this report by PSU’s Homelessness Research & Action Collaborative (HRAC), includes a literature review; a summary of PSU student survey results; a description of PSU programs based on interviews with staff and administrators; an analysis of programs at other institutions; and a set of recommendations for better addressing student housing needs. Phase 2 of the study will include the results of a comprehensive …

Z60.5/(En)Coded, Ryan Petteway

OHSU-PSU School of Public Health Faculty Publications and Presentations

No abstract provided.