Digital Commons Network^™

Lithium And Water: Hydrosocial Impacts Across The Life Cycle Of Energy Storage, James J. A. Blair, Noel Vineyard, Dustin Mulvaney, Alida Cantor, Ali Sharbat, Kate Berry, Elizabeth Bartholomew, Ariana Firebaugh Ornelas

Geography Faculty Publications and Presentations

As a key ingredient of batteries for electric vehicles (EVs), lithium plays a significant role in climate change mitigation, but lithium has considerable impacts on water and society across its life cycle. Upstream extraction methods—including open-pit mining, brine evaporation, and novel direct lithium extraction (DLE)—and downstream processes present different impacts on both the quantity and quality of water resources, leading to water depletion and contamination. Regarding upstream extraction, it is critical for a comprehensive assessment of lithium's life cycle to include cumulative impacts related not only to freshwater, but also mineralized or saline groundwater, also known as brine. Legal frameworks …

Fem-Based Conductive Heat Transfer Analytical Description Of Solidification Rate And Temperature Gradient During Lateral Laser Beam Oscillation Welding Of Aluminum Alloy, Jason Cheon, Cheolhee Kim, Sanghoon Kang, Minjung Kang

Mechanical and Materials Engineering Faculty Publications and Presentations

This study investigates the feasibility of utilizing the finite element method (FEM)-based conductive heat transfer (CHT) analysis simulation to determine temperature gradients and solidification rates at the solid–liquid interface during laser beam oscillation welding. By comparing experimental observations with FEM-based CHT analysis, the underlying microstructural evolution and grain formation during welding were examined. FEM-based CHT enables the calculation of temperature gradients (G) and solidification rates (R), offering insights into the formation of equiaxed structures, which are crucial for suppressing hot cracking. Columnar-to-equiaxed structure transition thresholds, such as G/R and G³/R, accurately predict …

Unbalanced Or Absent: Assessing Indigenous Representation In Interpretive Materials At Government Administered Heritage Sites In Cascadia And Hawai‘I, Leah Marie Rosenkranz, Jeremy Spoon, Douglas Deur

Anthropology Faculty Publications and Presentations

Unbalanced or absent Indigenous representation in interpretive materials at government administered heritage sites in settler colonial contexts can create contention and perpetuate a misinformed or one-dimensional visitor experience and historical narrative. This research therefore examines representation in interpretive materials accessible in 2019 at heritage sites with Indigenous ancestral connections in settler-colonial contexts. This study uses 10 U.S. case study heritage sites and two supplementary sites in Washington, Idaho, and Hawai‘i. Researchers utilized participant observation and systematic photography during two 2019 research phases to document interpretive materials. Quantification generated 731 analytic units which were subsequently assessed for the presence of inductively …

Centering The Leader: An Investigation Of Leader-Centric Variables In The Support Provision Process, Jordyn Jan Leslie

Dissertations and Theses

Few studies to date have investigated leader-centric variables associated with the support provision process. The following dissertation includes three studies that attempt to further understand such relationships. In Study 1, the interaction between leader sleep quantity and quality on various types of leader support (e.g., general supervisor support, family supportive supervisor behaviors, and sleep leadership) is studied using both employee and leader ratings. Study 2 integrates leader-centric research with work-life supportive leadership to propose a new theoretical model that delineates leader-centric variables (e.g., health & well-being, skills, role expectations, job demands) as precursors to the provision and perception of work-life …

Oregon State Rank Assessment For Cusick's Camassia (Camassia Cusickii), Nora Dunkirk

Institute for Natural Resources Publications

Oregon state conservation status assessment for Cusick's camassia (Camassia cusickii) using NatureServe methodology, 2024.

The Effects Of Physical Accessibility And Subjective Accessibility On Grocery Shopping Behaviors In Oakland, California, Huijun Tan

Dissertations and Theses

Existing studies underscore the complexity of urban accessibility, defined by a range of factors, including the city's physical layout and infrastructure as well as the subjective perceptions and experiences of its inhabitants. As urban areas continue to grow and diversify, gaining a comprehensive understanding of these varied interactions is imperative. This broader context highlights the necessity of investigating the interplay between physical and subjective accessibility, aiming to illuminate the specific challenges and opportunities faced by these communities in accessing necessary services. This study explored the relationship between physical and subjective accessibility and their consequential impact on grocery shopping behaviors among …

"We're Going To Tear Up The Caldera So We Can Have An Electric Car": Competing Perceptions And Spatial Dimensions Of Open-Pit Lithium Mining In The Mcdermitt Caldera, Oregon, Elizabeth Bartholomew

Dissertations and Theses

As the world attempts to pivot away from fossil fuels and other greenhouse gas-emitting activities that fuel climate change, the proposed technological solutions all require raw materials, resources, and land; each of which have their own logistical and political dimensions. Lithium, a federally recognized critical mineral that is considered a crucial element in modern battery production, plays a vital role in decarbonizing efforts. Under the banners of national security, resource independence, and carbon mitigation goals, the United States has incentivized domestic lithium extraction, expediting exploration throughout the American West. The McDermitt Caldera, spanning from southeastern Oregon into northern Nevada, is …

Exploring The Social Processes Influencing The Well-Being And Social Integration Of Systemically Marginalized Students In Higher Education: A Mixed-Methods Approach, Zeinab Abbas Hachem

Dissertations and Theses

Comprising two manuscripts, this dissertation employs a mixed-methods approach to comprehensively examine the intrapersonal and interpersonal processes influencing the socioemotional well-being and social integration of systemically marginalized students. The first manuscript quantitatively explored the relationship between ethnic identity commitment and indices of well-being, the mediating role of social relationships, and the moderating roles of gender and immigrant generation status among Latinx college students (N = 707). Results suggested that ethnic identity commitment was positively associated with socioemotional well-being. Although both types of relationships were significant mediators on their own, maternal (vs. peer) relationship quality was the stronger mediational influence. Furthermore, …

Oregon State Rank Assessment For Mountain Townsendia (Townsendia Montana), Lindsey K. Wise

Institute for Natural Resources Publications

Oregon state conservation status assessment for mountain townsendia (Townsendia montana) using NatureServe methodology, 2024.

Adopting Oer Course Materials: Instructor Experiences, Jenny Ceciliano

Dissertations and Theses

Traditional commercial textbooks used in postsecondary courses are often problematic due to their rigidity, tendency to mirror the dominant culture, and the substantial cost imposed upon students. Although replacing these texts with open educational resources (OER) can facilitate more equitable and inclusive pedagogical practices while removing a significant expense, there has been insufficient research surrounding instructors' experience of transitioning from a commercial textbook to OER course materials. Through semi-structured interviews with nine postsecondary instructors who teach with OER course materials, this basic qualitative study explores the experience of that transition. The findings indicate that adopting OER is a challenging and …

Openings And Closings In Human-Human Versus Human-Spoken Dialogue System Conversations, Judit Dombi, Tetyana Sydorenko, Veronika Timpe-Laughlin

Applied Linguistics Faculty Publications and Presentations

Although conversation openings and closings are ritualized speech acts (House & Kádár, 2023), they do require interactional work (Schegloff, 1986). Thus, they are important elements of interactional competence (Roever, 2022) and have been studied extensively in L2 interactions, including various types of technology-mediated communication contexts (e.g., Abe & Roever, 2019; 2020). However, to our knowledge, no research on openings and closings has been conducted with newer technologies such as spoken dialogue systems (SDS). To address this gap, this study compares conversation openings and closings across two modalities: a role-play with a human interlocutor versus with a fully automated agent. We …

Multimorbidity And Associated Informal Care Receiving Characteristics For Us Older Adults: A Latent Class Analysis, Ruotong Liu, Corey L. Nagel, Siting Chen, Jason T. Newsom, Heather G. Allore, Ana R. Quiñones

Psychology Faculty Publications and Presentations

Older adults with varying patterns of multimorbidity may require distinct types of care and rely on informal caregiving to meet their care needs. This study aims to identify groups of older adults with distinct, empirically-determined multimorbidity patterns and compare characteristics of informal care received among estimated classes. Methods Data are from the 2011 National Health and Aging Trends Study (NHATS). Ten chronic conditions were included to estimate multimorbidity patterns among 7532 individuals using latent class analysis. Multinomial logistic regression model was estimated to examine the association between sociodemographic characteristics, health status and lifestyle variables, care-receiving characteristics and latent class membership. …

Impact Of Sociodemographic Status And Sex On Chronic Rhinosinusitis And Olfaction In People With Cystic Fibrosis., Ethan J. Han, Christine M. Liu, Jakob L. Fischer, Jess C. Mace, Karolin Markarian, Jeremiah A. Alt, Todd E. Bodner, Naweed I. Chowdhury, Patricia H. Eshaghian, Yuqing A. Gao, Multiple Additional Authors

Psychology Faculty Publications and Presentations

Sociodemographic status (SDS) including race/ethnicity and socioeconomic status as approximated by education, income, and insurance status impact pulmonary disease in people with cystic fibrosis (PwCF). The relationship between SDS and chronic rhinosinusitis (CRS) remains understudied.

Exploring Evidentiary Approaches And Reform Potential In The Allies In Change Program For Abusive Intimate Partners, Julie Melissa Conner

Dissertations and Theses

This thesis examines the Allies in Change batterer intervention program, analyzing its curriculum components, alignment with evidence-based practices, unique features, limitations, and implications for domestic violence intervention. The study employs a qualitative mixed-methods approach, including curriculum textual analysis, word frequency count, a semi-structured interview with Chris Huffine, the curriculum author and program founder, and observation of a forty-hour domestic violence training provided for batterer intervention programs and facilitators.

The research begins by reviewing the literature on domestic violence intervention, highlighting the importance of evidence-based practices, cognitive behavioral techniques, and cultural responsiveness. It then conducts a textual analysis of the Allies …

Marketing In Higher Education: The Effects On The College Choice Experience Of First-Generation Latinx Students, David Cortez

Dissertations and Theses

The Latinx population in the United States has drastically increased over the last twenty years. During the same period, the number of first-generation Latinx students enrolling in higher education post-recession has also increased by as much as 1.5 million students. The expansion of the Latinx student population in Oregon has mirrored the national trend by exponentially increasing over the last 10 years. As the population of first-generation Latinx students grows, it becomes essential to explore the issues and barriers Latinx students face in making their college choices. Previous researchers have found that selecting the right institution is important to increase …

Burned Out By The Binary: How Misgendering Of Nonbinary Employees Contributes To Workplace Burnout, Sky Corby, Larry R. Martinez, Nicholas A. Smith, Kelly M. Hamilton, Mordeky C. Dullum

Psychology Faculty Publications and Presentations

We examine nonbinary employees’ experiences with misgendering in work contexts and draw from minority stress theory (Meyer, 2003) to understand the consequences of misgendering. Our findings from 29 semi-structured interviews with nonbinary individuals revealed that although being misgendered is a common and highly stressful experience (distal stressor), the emotional labor associated with anticipating and reacting to misgendering acts as an additional and more proximal stressor. Together, these stressors jointly contribute to all three components of employee burnout (emotional exhaustion, depersonalization, and reduced professional efficacy). We also identified support from coworkers and supervisors (in preventing and addressing misgendering) as important ameliorating …

Oregon State Rank Assessment For Chambers' Paintbrush (Castilleja Chambersii), Lindsey K. Wise

Institute for Natural Resources Publications

Oregon state conservation status assessment for Chambers' paintbrush (Castilleja chambersii) using NatureServe methodology, 2024.

English As The Scholarly Language: Diversity, Equity, And Inclusion Implications For Academic Reference And Instruction Librarians, Linda Ueki Absher, Michelle R. Desilets

Library Faculty and Staff Publications and Presentations

This article examines the use of non-English resources in academic libraries, with a focus on reference and instruction. Academic librarians from the United States and Canada were surveyed about their perceptions regarding the use of non-English resources during reference and instruction duties and the results are considered through a diversity, equity, and inclusion lens. The authors explore literature regarding the dominance of the English language in higher education, scholarly communication, and academic publishing. Library literature is also reviewed, emphasizing reference and instruction services viewed through a critical librarianship or “critlib” lens. These perspectives are applied to the survey results with …

The Nexus Between Revenue Decentralization Reforms And Economic Growth, Frankline Muthomi, Titus M. Ndunda

Public Administration Faculty Publications and Presentations

Revenue decentralization represents a framework that facilitates enhanced fiscal autonomy for subnational governments, thereby enabling the tailoring of services to meet local needs and potentially fostering economic growth. In Kenya, the ratification of the 2010 constitutional formalized novel revenue frameworks aimed at supporting the operations, management, and sustainability of devolved county governments. However, there remains a paucity of empirical analysis examining the relationship between the revenue decentralization reforms and county-level economic growth. We begin by identifying the main sources of county revenues within the decentralization frameworks, then investigate the dynamic interrelation with county economic growth. Through panel vector autoregression estimation …

Generalized Optimal Transport And Mean Field Control Problems For Reaction-Diffusion Systems With High-Order Finite Element Computation, Guosheng Fu, Stanley Osher, Will Pazner, Wuchen Li

Mathematics and Statistics Faculty Publications and Presentations

We design and compute a class of optimal control problems for reaction-diffusion systems. They form mean field control problems related to multi-density reaction-diffusion systems. To solve proposed optimal control problems numerically, we first apply high-order finite element methods to discretize the space-time domain and then solve the optimal control problem using augmented Lagrangian methods (ALG2). Numerical examples, including generalized optimal transport and mean field control problems between Gaussian distributions and image densities, demonstrate the effectiveness of the proposed modeling and computational methods for mean field control problems involving reaction-diffusion equations/systems.

Supporting Resource Equity For Oregon’S Home Visiting Workforce: Exploring Program Model And Regional Differences, Nicole M. Lauzus, Yumi Lee, Beth L. Green, Erin Gaines, Ron Joseph

School of Social Work Faculty Publications and Presentations

Prenatal and early childhood home visiting is an effective strategy for promoting positive birth outcomes, improving family well-being and preventing child abuse and neglect. One key to successful services is having a strong, well-supported home visiting workforce. In Oregon and nationally, this critical workforce is facing a crisis as programs struggle to hire and retain skilled home visitors, and workers face low pay, difficult working conditions and high job stress.

This learning brief is the second in a series to share findings from a 2023 survey of Oregon’s home visiting workforce, which provides a wealth of information about how to …

What Are The Psychosocial Effects Of Service Dogs On Handlers With Disabilities, Kylie Kline

University Honors Theses

This study looks to explore the psychosocial effects that service dogs have on handlers with disabilities. A cross-sectional survey designed to gather information about this directly from service dog handlers was administered to a sample of 20 participants. Then, a qualitative analysis was conducted on data from the survey using an inductive coding scheme that identified themes in the data as key terms and ideas emerged.

Results revealed many nuances surrounding service dogs' effects on handlers' psychosocial health. Notable results include: 20 of 20 participants (100%) reporting their service dogs have had positive impacts on their quality of life; 19 …

Building Partnerships Through Third-Party Facilitation: Best Practices From The Community Collaborative Initiative, Shariq Siddiqui, Abdul Samad, Rafeel Wasif

Public Administration Faculty Publications and Presentations

Small minority group organisations rarely collaborate with other nonprofits owing to a lack of expertise and resources. Third-party facilitators can help these groups navigate the process of collaboration. However, the literature has largely ignored their role in the process. We address this gap by studying the challenges third-party facilitators face in the collaboration process and best practices they can apply using the Community Collaboration Initiative (CCI), a unique third-party-facilitated collaboration process working with Muslim American nonprofits.

Wind Plant Wake Losses: Disconnect Between Turbine Actuation And Control Of Plant Wakes With Engineering Wake Models, Ryan Scott, Nicholas Hamilton, Raul Bayoan Cal, Patrick Moriarty

Mechanical and Materials Engineering Faculty Publications and Presentations

Wake losses from neighboring plants may become a major factor in wind plant design and control as additional plants are constructed in areas with high wind resource availability. Because plant wakes span a large range of physical scales, from turbine rotor diameter to tens of kilometers, it is unclear whether conventional wake models or turbine control strategies are effective at the plant scale. Wake steering and axial induction control are evaluated in the current work as means of reducing the impact of neighboring wind plants on power and levelized cost of electricity. FLOw Redirection and Induction in Steady State (FLORIS) …

Tribal Lands Population Projections: Celilo Village & Grande Ronde, Neal Marquez, Ethan Sharygin, Huda Alkitkat, Suniva Thangaraj, Gilbert Montcho, David Swanson, Joshua Wilde

Oregon Population Forecast Program

To achieve more affordable, fair, and equitable outcomes in the housing planning process, the Oregon Department of Land Conservation and Development and Oregon Housing and Community Services developed a plan to address past and ongoing obstacles to access to affordable housing. This plan incorporated population projections with detail by age, race/ethnicity, and disability status, and for American Indian tribal lands with which to make a more detailed assessment of housing access and future housing needs. This report, prepared by the Portland State University Population Research Center, includes updates to previously published forecasts for the Grand Ronde Community and Celilo Village.

The Closing Of The Rock 'N' Roll Camp For Girls In Portland, Sarah Dougher

University Studies Faculty Publications and Presentations

The 2023 closing of the Rock “n” Roll Camp for Girls (founded in Portland, Oregon in 2001) was due to many factors, some of which were present in its founding. Using interviews, scholarly literature, and archival materials from the camp, this paper explores elements contributing to its end, including changing categories of gender, dynamic ideas about what constitutes women’s and girls’ empowerment, an altered music industry landscape, changes in technology, and rampant gentrification.

The Conflict Between The United States And Iran And Its Effect On Iraq, Sarah Alsalih

Dissertations and Theses

This thesis examines the dynamic interplay between the United States and Iran and its repercussions on Iraq in the post-9/11 era. Against a backdrop of historical adversities, the research delves into the evolving relationship between the U.S. and Iran, elucidating its multifaceted dimensions and the consequential effects on Iraq. The central inquiry driving this investigation is: "Against the adversarial historical backdrop of U.S.-Iran relations, how has the relation between the two countries changed and impacted Iraq throughout the post 9/11 era?"

Drawing upon a comprehensive analysis through the lens of diplomatic interactions, military interventions, and regional dynamics, this study seeks …

An Examination Of The Impact Of Court-Appointed Fines And Fees: How Governmental Reliance On These Expenses Is Harming Vulnerable Communities, Rachel Elizabeth Couche

Dissertations and Theses

Fines and fees are commonplace in the United States criminal justice system as a form of punishment for both minor and severe offenses. While substantial research has demonstrated that these financial consequences disproportionately affect certain communities, studies that depict a narrative of these impacts are vastly underrepresented in the field. This project expands upon past literature by delving into the effects of these practices on individuals and their families. The current study outlines the findings from a content analysis of twelve semi-structured interviews on the impacts of fines and fees in Oregon. The findings create a deeper understanding of how …

“I Was Determined To Fulfill This Image Of Myself That I Wanted Of A ‘Good Asian Student’”: A Photovoice Study Of Asian American College Student Mental Health, Lalaine Sevillano, Joanna C. La Torre, Taylor A. Geyton

School of Social Work Faculty Publications and Presentations

Asian American (AsA) youth and emerging adults are growing at a faster rate than all other racial and ethnic populations in the United States. Burgeoning empirical evidence shows that they are experiencing increased adverse mental health outcomes since the start of the COVID-19 pandemic. Additionally, trends in AsA youth and emerging adults’ utilization and help-seeking behaviors remain low. Health equity scholars posit that the model minority stereotype continues to obscure and minimize these mental health disparities. The current study aims to contribute to this vital research through a Photovoice study with AsA emerging adults. Fourteen AsA undergraduate students (M age …

Decreased Risk Of Osteoporosis Incident In Subjects Receiving Chinese Herbal Medicine For Sjögren Syndrome Treatment: A Retrospective Cohort Study With A Nested Case-Control Analysis, Chieh-Tsung Yen, Hanoch Livneh, Hua-Lung Huang, Ming-Chi Lu, Wei-Jen Chen, Tzung-Yi Tsai

Counselor Education Faculty Publications and Presentations

Sjögren syndrome (SS) is a long-lasting inflammatory autoimmune disease that may cause diverse manifestations, particularly osteoporosis. Though usage of Chinese herbal medicine (CHM) can safely manage autoimmune disease and treatment-related symptoms, the relation between CHM use and osteoporosis risk in SS persons is not yet recognized. With that in mind, this population-level nested case-control study aimed to compare the risk of osteoporosis with and without CHM use. Potential subjects aged 20–70 years, diagnosed with SS between 2001 and 2010, were retrieved from a national health claims database. Those diagnosed with osteoporosis after SS were identified and randomly matched to those …