Digital Commons Network^™

Canary In The Forest?—Tree Mortality And Canopy Dieback Of Western Redcedar Linked To Drier And Warmer Summers, Robert A. Andrus, L. R. Peach, A. R. Cinquini, Joseph Hulbert, J. T. Yusi, Andres Holz, M. Fischer, Kevan B. Moffett, Multiple Additional Authors

Geography Faculty Publications and Presentations

Aim: Forest dieback is increasing from unfavourable climate conditions. Western redcedar (WRC)—a culturally, ecologically and economically important species—has recently experienced anomalously high mortality rates and partial canopy dieback. We investigated how WRC tree growth and dieback responded to climate variability and drought using tree-ring methods. Location: Pacific Northwest, USA. Taxon: Western redcedar (Thuja plicata). Methods: We collected tree cores from three tree health status groups (no canopy dieback, partial canopy dieback, and dead trees) at 11 sites in coastal (maritime climate) and interior (continental climate) WRC populations. From growth rates, we computed four growth indices that assessed the resilience to …

Raps Sheet, September 2023, Retirement Association Of Portland State

RAPS Sheet: Monthly Newsletter

No abstract provided.

Women’S Leadership And Covid-19 Pandemic: Navigating Crises Through The Application Of Connective Leadership, Chris Taylor Cartwright, Maura Harrington, Sarah Smith Orr, Tessa Sutton

International & Global Studies Faculty Publications and Presentations

International and national crises often highlight behavioral patterns in the labor market that illustrate women’s courage and adaptability in challenging times. The COVID-19 pandemic and resulting changes in the workplace due to social distancing, remote work, and tele-communications protocols showcased women’s power of authenticity and accessibility (interpersonal and personalized experiences) to engage with their constituents effectively. The catalyzed this research was our desire to underscore the importance of studying the impact of COVID-19 on women leaders. The COVID-19 pandemic brought to light specific challenges and disparities women faced in the workplace. It has been asserted that women leaders substantially benefit …

Evaluation Of Driver Comprehension And Compliance Of Red Colored Pavement Markings For Transit Lanes In Portland, Oregon, Nathan Mcneil, Christopher Monsere, Jennifer Dill

Urban Studies and Planning Faculty Publications and Presentations

Many U.S. agencies have experimented with red colored pavement markings in transit lanes to enhance the message that they are restricted to transit vehicles. This study evaluates non-transit drivers’ comprehension of and compliance with red colored lane markings in transit priority lanes intended to communicate lane restrictions and appropriate turning and merging locations. Two complementary research methods were used: 1) an online survey of drivers’ comprehension of red colored pavement markings; and, 2) evaluation of video collected at locations pre and post installation of red colored pavement markings. In the survey, most drivers recognize the red pavement color as a …

Role Of Binder On Yield Strength Of Polycaprolactone/Dimethylsulfone Composites For Bio-Applications, Kyung-Eun Min, Jae-Won Jang, Sung Yi, Cheolhee Kim

Mechanical and Materials Engineering Faculty Publications and Presentations

Polycaprolactone (PCL) and dimethylsulfone (DMSO2) composites can tailor the properties of scaffold materials, allowing their use in bone tissue engineering. With an increase in DMSO2 content, the modulus of the material increases but not the yield strength. In order to increase yield strength, a binder was added. However, the optimization of the content and the mixing process of the binder were not optimized in the previous studies. In this study, gamma-methacryloxypropyltrimethoxysilane (A-174) was used as a binder to increase the strength of a composite. Four different mixing processes were employed based on the binder mixing sequence. The binders with content …

Modeling Yield Strength Of Austenitic Stainless Steel Welds Using Multiple Regression Analysis And Machine Learning, Sukil Park, Myeonghwan Choi, Dongyoon Kim, Cheolhee Kim, Namhyun Kang

Mechanical and Materials Engineering Faculty Publications and Presentations

Designing welding filler metals with low cracking susceptibility and high strength is essential in welding low-temperature base metals, such as austenitic stainless steel, which is widely utilized for various applications. A strength model for weld metals using austenitic stainless steel consumables has not yet been developed. In this study, such a model was successfully developed. Two types of models were developed and analyzed: conventional multiple regression and machinelearning- based models. The input variables for these models were the chemical composition and heat input per unit length. Multiple regression analysis utilized five statistically significant input variables at a significance level of …

Computational Analysis Of Plasma Lipidomics From Mice Fed Standard Chow And Ketogenic Diet, Amy L. Seufert, James W. Hickman, Jaewoo Choi, Brooke A. Napier

Biology Faculty Publications and Presentations

Dietary saturated fatty acids (SFAs) are upregulated in the blood circulation following digestion. A variety of circulating lipid species have been implicated in metabolic and inflammatory diseases; however, due to the extreme variability in serum or plasma lipid concentrations found in human studies, established reference ranges are still lacking, in addition to lipid specificity and diagnostic biomarkers. Mass spectrometry is widely used for identification of lipid species in the plasma, and there are many differences in sample extraction methods within the literature. We used ultra-high performance liquid chromatography (UPLC) coupled to a high-resolution hybrid triple quadrupole-time-of-flight (QToF) mass spectrometry (MS) …

Centering Communities Of Color In The Modernization Of A Public Health Survey System: Lessons From Oregon, Daniel F. López-Cevallos, Kusuma Madamala, Mira Mohsini, Andres Lopez, Roberta Hunte, Ryan Petteway, Tim Holbert

School of Social Work Faculty Publications and Presentations

Context: Public health survey systems are tools for informing public health programming and policy at the national, state, and local levels. Among the challenges states face with these kinds of surveys include concerns about the representativeness of communities of color and lack of community engagement in survey design, analysis, and interpretation of results or dissemination, which raises questions about their integrity and relevance.

Approach: Using a data equity framework (rooted in antiracism and intersectionality), the purpose of this project was to describe a formative participatory assessment approach to address challenges in Oregon Behavioral Risk Factor Surveillance System (BRFSS) and Student …

The Affective Discourses Of Eviction: Right To Counsel In New York City, Hadley Savana Bates

Dissertations and Theses

This study explores the interrelationships of urban policy, affect, and power through a critical discourse analysis of New York City's "Universal Access to Legal Services" / "Right to Counsel" ordinance, a 2017 initiative that has persisted amidst the evolving landscape of eviction diversion following the outbreak of Covid-19. By examining archival documents regarding the groundbreaking policy, this research reveals how affective discourses regarding vulnerability, stress, and solidarity situate political actors in relation to urban policy, political movement, and the material conditions of survival. Drawing upon critical policy studies and affect theory, this study underscores the affective dimensions of policy mobility …

A Just Futures Framework: Insurgent Roller-Skating In Portland, Oregon, Célia Camile Beauchamp

Dissertations and Theses

Since the beginning of the COVID-19 pandemic in 2020, insurgent roller-skating has 're-emerged' as a popular use of urban space. Drawing on spatial justice theories, futures literature, and queer spatial theory, this study theorizes a four-part just futures framework to analyze the nuance and tension within the roller-skating scene in Portland, Oregon. The just futures framework: 1) creates a space for expanding planning practice to reflect overlooked and suppressed perspectives on urban space; 2) explores insurgent urbanism’s contradiction between the reification of hegemonic systems and its counter-hegemonic and subversive qualities; and 3) assesses the spatial and planning implications of insurgent …

Real-Time Length Sensing Of Braided Pneumatic Actuator Using Ir Time-Of-Flight Sensor, Luon B. Chung

Dissertations and Theses

Braided Pneumatic Actuators (BPAs) are used widely in robotics as artificial muscles because of their similar characteristics to biological muscles. When a BPA is pressurized, it expands in the radial direction and contracts in the longitudinal direction. The contraction generates a pulling force that is dependent on the input pressure and BPA length. Biological muscle also behaves in the same way where a pulling force is generated on a contraction. To control BPAs on a robot, the real-time pressure and length measurements are necessary. In this dissertation, I present a new method to measure length of BPAs in real-time using …

"We Just Have To Trust The People In White Lab Coats": Analyzing Distrust In Vaccine Hesitant Comments On The Hhs Nondiscrimination In Health Programs And Activities Proposed Rule, Hima Bindu Lakshmi Vedantham

Dissertations and Theses

Vaccine attitudes provide a valuable site for analyzing trust relations on both interpersonal and institutional levels. This study is a content analysis of public comments submitted from August through October 2022 in response to a proposed rule issued by the U.S. Department of Health and Human Services, which sought to strengthen non-discrimination protections in healthcare programs. Specifically, it examines the role of distrust in shaping and reinforcing vaccine hesitant beliefs, experiences, and healthcare decisions. The five themes identified in the study illustrate a breakdown in trust in pharmaceutical companies, government actors, and healthcare providers, reflecting broader social patterns. In the …

The New Profits Of Pleasure: Reality Television And Affective Exploitation In Post-Pandemic Neoliberalism, Sophia Aepfelbacher

Dissertations and Theses

This thesis uses reality television and the parasocial relationships it cultivates as a microcosm to better understand the current form of neoliberalism as well as the implications it has for democracy. I extend the preexisting scholarship surrounding neoliberalism and reality television by emphasizing the importance of social media in understanding that link. By conducting a case study of Netflix's Love is Blind, I demonstrate how both reality television content and the reality-television-participant-to-influencer pipeline serve to reinforce neoliberal values by constructing powerful cultural imaginaries such as a model of care and self-sufficiency that centers marriage and the household. I argue …

I Know That You Know That I Know: Meta-Parody Ads And Brand Credibility, Giuliana T. Mintiero

University Honors Theses

In recent years, advertisers have been turning to a new form of humorous advertising to reach wary consumers. This study refers to this new form of advertising appeal as 'meta-parody' advertising, defined as humorous advertisements that parody advertising tropes for the sake of building credibility with the consumer. These ads are aimed at overcoming persuasion knowledge, which is what consumers use to cope with attempts to influence them. Despite the prevalence of meta-parody in contemporary advertising, there is no existing research on meta-parody ads, let alone their relationship with brand credibility. Previous research into humorous advertising has produced mixed views …

Effects Of Language Status, Community Advice, And Parent Beliefs On Heritage Language Maintenance In The U.S.: A Scoping Review, Jasmine Loeung

University Honors Theses

This scoping review examines the effects of language status, community advice to parents, and parents' beliefs on heritage language maintenance within a U.S. context. A total of 34 articles met the inclusion criteria. Four key themes were identified as follows: (1) status of a language in society affects maintenance, (2) parents' beliefs about the impact of the heritage language affect family language practices, (3) community advice impacts parents' beliefs and practices, (4) other factors affecting maintenance of the heritage language across generations. Overall, HL maintenance was observed as a dynamic relationship between a variety of factors, with individuals as well …

Decriminalizing Drugs: A Comparative Study Of Oregon In An International Context, Fox Millsaps

University Honors Theses

Oregon made history in 2020 when voters joined together to approve ballot measure 110, the Drug Addiction Treatment and Recovery Act, which decriminalized personal amounts of all illicit substances. This was done in a bid to begin treating the ongoing drug crisis as a public health issue as opposed to a criminal justice issue. While Oregon may be the first in the nation to make such a move, they are not the first government to experiment with decriminalizing 'hard drugs.' Some argue that Oregon’s model was based on Portugal's decriminalization effort and point to Portugal's success as a potential outcome …

The Radical Relationality Of Complex Partnerships: Community-Member Experiences In Critical Community-Based Learning, Amie Riley

Dissertations and Theses

Through a radical relationality within the social-ecological systems that sustain us, critical community-based learning (CBL) in higher education offers a praxis for engaging the demanding pedagogical and community challenges we face. When CBL is implemented as both a critical and sustainability pedagogy, as a strategy for social change, the relationships created by CBL partnerships have the potential to generate transformational outcomes for all partnership agents. Using a critical complexity theoretical framework, a bricolage of complexity science and critical theory, this critical qualitative study sought to understand the systemic patterns and behaviors of a community-based learning partnership by elevating community-member voices. …

Ronald E. Mcnair Scholars Program Profiles And Abstracts 2023, Motutama Sipelii

McNair Symposium

This is the complete event program and provides presentation abstracts and biographies of McNair scholars and their mentors.

Trackxi Capstone Review, Kevin Abarca

University Honors Theses

This University Honors review thesis is based on my business capstone which revolved around developing a strategic road map for the startup company Trackxi. Trackxi is a real estate tech startup aiming to streamline transactions using a patent-pending visual online platform. The platform is similar to companies such as Asana but provides a more linear representation of real estate transaction steps, equal to a long visual chain with blocks representing next steps. The platform also caters to independent real estate agents, as more established real estate agents usually have in house solutions. Our team also continually interfaced with the client …

Examining Factors Impacting The Service Needs Of Unhoused Women, Holly Brott

Dissertations and Theses

Women account for a sizeable proportion of the unhoused population in the U.S. Over one-third (38.7%) of unhoused individuals are women, which is a 17% increase from 2016 (United States Department of Housing and Urban Development, 2019). The increased prevalence of women experiencing homelessness calls for a renewed examination of their service needs. This dissertation presents three studies examining factors impacting the service needs of unhoused women. The first manuscript examined factors contributing to unhoused mothers’ successful completion of transitional housing; highlighted participant-identified programmatic strengths; and investigated differences in facilitators to success across two geographic contexts: one rural and one …

Drivers And Dynamics Of Phytoplankton Communities And Harmful Algal Blooms In Mountain Lakes, Lara Stephanie Jansen

Dissertations and Theses

Harmful cyanobacterial blooms (cyanoHABs) are a complex and widespread disturbance in freshwater water bodies, impacting water quality for wildlife and human populations. While cyanobacteria often bloom in warm lakes impacted by human development like agriculture, blooms are increasingly reported in cooler waters with limited development in the surrounding watershed. As much of cyanoHAB research has focused on lakes in highly developed watersheds, the understanding of factors leading to cyanobacteria dominance and blooms in the absence of major development remains limited. Mountain lakes can serve as ideal systems to study bloom-forming cyanobacteria in watersheds with minimal development. In addition, mountain lakes …

Tell Me, Do You Feel It Too? A Meta-Analysis Of Dyadic Emotional Contagion In The Workplace, Stefanie Fox

Dissertations and Theses

Emotional contagion influences multiple important individual and organizational outcomes, including burnout, job satisfaction, organizational citizenship behaviors, and task performance. The current meta-analytic review utilizes Barsade and colleagues' model of emotional contagion in organizational life and Van Kleef's emotions as social information model, creating a theoretically and empirically based examination of emotional contagion in organizational dyads covering the past 30 years of research. It offers nuance to traditional positive and negative affect conceptualization by utilizing Van Kleef's four social emotion categories (i.e., affiliation, appeasement, dominance, supplication) along with general positive and negative valanced emotional expressions as antecedents of emotional contagion. Using …

The Double Dutch Retention Framework: A Grounded Theory Study On Increasing Racial Staff Diversity At Pacific Northwest Community Colleges, Dominique S. Austin

Dissertations and Theses

This dissertation examines the troubling underrepresentation of staff of color in Pacific Northwest community colleges. Despite the proven benefits of racial staff diversity in promoting student success, community colleges face challenges in recruiting and retaining staff of color. Existing literature concerning non-teaching staff at community colleges is limited. This study adds to the existing literature by investigating the experiences and perceptions of staff of color in Pacific Northwest community colleges to identify effective strategies for increasing racial staff diversity.

This study used a constructivist grounded theory approach in a comprehensive data collection process involving surveys, individual and focus group interviews, …

Do Men Strategically Leverage Women's Intersecting Identities? Intersectional Symbolic Inclusion As An Electoral Competition Strategy In Polarized Turkey, Elif Sari Genc

Dissertations and Theses

Do party elites use intersectionality as an electoral competition strategy? In this dissertation, I study this question in the context of mayoral elections in Turkey by focusing on the competition between the Justice and Development Party (AKP) and the People's Republican Party (CHP). Examining the gender and religious orientation of candidates from these parties, local variations in party affiliations, and partisan polarization that is decisive in vote choice at the district level, I argue that the Islamist AKP strategically selects secular-appearing women to leverage their intersecting identities in races where secularist partisan polarization against this party is high.

Drawing on …

Beyond First Thoughts: Understanding The Essence Of Equitable Decision-Making, A Phenomenological Study, White Practitioners As Equitable Educational Decision-Makers, Zinnia Un

Dissertations and Theses

This interpretive phenomenological study aims to understand the lived experience of White educational decision-makers (EDMs) as they make equitable decisions for racially, culturally, and linguistically diverse (RCLD) students. Six decades after the landmark case of Brown v. Board of Education, the landscape of American education changed. Many scholars theorized the impact of colorblindness in decision-making and the connection to disproportionate outcomes for RCLD students.

The Student Success Act (2019) brings an additional $1 billion in investment to schools in Oregon annually. This allocation of school resources required an initial and ongoing community engagement process to ensure funding supports well-rounded education …

Marginalized Populations’ Access To Transit: Journeys From Home And Work To Transit, Miriam J. Abelson, Ivis Garcia, Sadika Khan, Amy Lubitow, Nicholas Puczkowskyj, Marisa A. Zapata

TREC Final Reports

Previous scholarship has shown that low-income individuals who also might identify as racial, ethnic, and gender minorities (such as transgender and gender nonconforming) are more likely to be dependent on public transportation. What remains understudied is how these marginalized groups, given their intersectional identities of oppression, might experience transit. The primary research question guiding this project is how do people with intersecting marginal identities experience social exclusion as they travel via mass transit? To answer the above research question, we employed a photovoice methodology and video-call interviewing, in Portland, OR, and Salt Lake City, UT. Across these two sites we …

A Call To Action For Disability And Rehabilitation Research Using A Discrit And Disability Justice Framework, Toni Saia, Rana Yaghmaian, Rachel Cuesta, Carlyn Mueller, Roxanna N. Pebdani

Counselor Education Faculty Publications and Presentations

Purpose: Disability and ableism exist within a societal context that does not ignore the many facets of a person’s identity, however often our disability research does not recognize how experiences vary based on the intersecting identities individuals hold. This article utilizes Intersectionality, Dis/ability Critical Race Studies (DisCrit), and Disability Justice to identify ways for rehabilitation researchers to adapt their research practices for maximum inclusivity and representation.

Materials and Methods: Using these three frameworks, we have developed a call to action including recommendations for rehabilitation researchers to consider as they design and implement research projects.

Results: Incorporating these frameworks provides an …

Can Fiction Lead To Prosocial Behaviour? Exclusion, Violence, Empathy, And Literature In Early Modernity, Isabel Jaén-Portillo

World Languages and Literatures Faculty Publications and Presentations

In this short essay, I want to address the relationship between positivity and negativity in affect theories and literary analysis by focusing on the connection between empathy and literature in early modernity, a period when affect theories emerge robustly and are articulated in treatises such as De anima et vita (1538) by Juan Luis Vives (1492–1590) or Nueva Filosofía (1587) by Oliva de Sabuco (1562–1626?).1 We begin with the proposition that fictional narratives may move us to care for others and help them. Indeed, the idea that fiction can make us more empathetic and, thus, turn us into better human …

Oregon Statewide Homelessness Estimates 2022, Timothy Green, Jacen Greene, Marisa Zapata

Homelessness Research & Action Collaborative Publications and Presentations

Executive Summary: This report presents county-level estimates of people experiencing homelessness in Oregon in 2022 relying on data from the Point-in-Time (PIT) count. The PIT count is, in essence, a census of people experiencing literal homelessness–those either living without shelter, in an emergency shelter, or in certain forms of transitional housing. The PIT count is conducted by the eight Continuums of Care (CoCs) in Oregon, which are government/nonprofit groups that administer federal funding to address homelessness. The 2022 PIT count listed 17,912 people as experiencing literal homelessness on a single night in January. The data suggest that there was little …

Water Quality Land Cover Change And Water Quality In Wetlands At The City Of Gresham, Or, Evelyn Barajas, Michael Gonzalez

altREU Projects

The City of Gresham, Oregon has implemented constructed wetlands around the area as an attempt to collect, filter, and purify water from different sources such as rain, agricultural waste, and domestic waste. We focused our research on three different facilities: Columbia Slough Water Quality Facility (CSWQF), Fairview Creek Water Quality Facility, and Brookside Water Quality Facility. For each of these, we conducted tests and looked at the concentration levels for nitrogen and phosphorus nutrients such as NH3-N (ammonium), NO3-N (nitrate), TKN (total Kjeldahl nitrogen), O-PO4 (phosphate), and Total P (total phosphorus), as well as heavy metals like Total Cu (total …