Digital Commons Network^™

Structure-From-Motion Derived Snow Cover In Burned Forests Of The Western Oregon Cascades, Siobhan Ciafone

Dissertations and Theses

Forest fire occurrence in the western US has increased rapidly since the 1980s, and most western US fires occur in the seasonal snow zone. Burned forests influence snow accumulation and melt patterns for years following fire, and understanding drivers of variability in snow cover across a burned landscape at the basin-scale is necessary for accurate hazard prediction and water resource forecasting. Basin-scale surveys of snowpack are possible with remote sensing, but accurate sensing methods such as Light Detection and Ranging (LiDAR) are often cost-prohibitive. In the last decade, structure-from-motion (SfM), an optical remote sensing technique, has emerged as an affordable …

Race And Income As Predictors Of Trust In Flood Mitigation Strategies, Wendy Nathaly Sangucho Loachamin

Dissertations and Theses

Trust plays a central role in coastal flooding management because the support or opposition to costly mitigation strategies depends, in part, on how much stakeholders trust in the effectiveness of these strategies. Despite the importance of trust in the approval of flood mitigation strategies, trust is rarely measured. Furthermore, Environmental Justice (EJ) studies have consistently shown that BIPOC (Black, Indigenous and People of Color) and low-income communities are more vulnerable to environmental hazards. Therefore, if these communities are more exposed to flooding, we hypothesize they will have less trust in flood mitigation strategies to protect them; yet trust is understudied …

Adults’ Reading Engagement And Wellbeing In Aotearoa New Zealand, Stephen Reder

Applied Linguistics Faculty Publications and Presentations

Education and literacy have long been associated with a range of economic and social outcomes in industrialized societies. Recent research based on large-scale national and international surveys has examined effects of education and literacy on individuals’ social and economic outcomes. This paper takes a further step in understanding the importance of literacy for individuals’ economic and social outcomes by disentangling the effects of two different aspects of literacy, literacy proficiency as measured by standardized tests and reading engagement as measured by self-reports of everyday reading activities. Using recent nationally representative survey data from New Zealand, multivariate regression models estimate the …

Raps Sheet, September 2023, Retirement Association Of Portland State

RAPS Sheet: Monthly Newsletter

No abstract provided.

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. …

Multi-Agent Deep Reinforcement Learning For Radiation Localization, Benjamin Scott Totten

Dissertations and Theses

For the safety of both equipment and human life, it is important to identify the location of orphaned radioactive material as quickly and accurately as possible. There are many factors that make radiation localization a challenging task, such as low gamma radiation signal strength and the need to search in unknown environments without prior information. The inverse-square relationship between the intensity of radiation and the source location, the probabilistic nature of nuclear decay and gamma ray detection, and the pervasive presence of naturally occurring environmental radiation complicates localization tasks. The presence of obstructions in complex environments can further attenuate the …

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 …

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 …

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 …

Modeling Of Signals And Spectra: 5g And Beyond, Xianzhen Yang

Dissertations and Theses

The collection of papers addresses various aspects of spectra and signals in RF wireless systems for 5G and beyond. The first paper focuses on the nonlinear effects of amplified dual-band OFDM signals, providing a spectrum model for intermodulation and cross-modulation. The second paper extends this analysis beyond bandwidth restrictions, enabling accurate prediction of amplified dual-band spectrum. The third paper emphasizes the significance of out-of-band intermodulation products and derives an analytical expression using third-order intercept points. The fourth paper presents a unified spectrum expression for OFDM, FBMC, and F-OFDM, facilitating comparative insights into these signals. The fifth paper explores second-order intermodulation …

L2 Learners’ Pragmatic Output In A Face-To-Face Vs. A Computer-Guided Role-Play Task: Implications For Tblt, Veronika Timpe-Laughlin, Judit Dombi, Tetyana Sydorenko, Shoko Sasayama

Applied Linguistics Faculty Publications and Presentations

Accomplishing oral interactive workplace tasks requires various language abilities, including pragmatics. While technology-mediated tasks are thought to offer many possibilities for teaching and assessing second language (L2) pragmatics, their effectiveness – especially those facilitated by an AI agent (artificial intelligence agent) – remains to be explored. This study investigated how 47 tertiary-level learners of English as a second language (ESL) performed on an oral interactive task that required them to make requests to their boss in two distinct modalities. Each participant completed the same task with a fully automated AI agent and with a human interlocutor in a face-to-face format. …

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 …

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 …

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 …

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 …

More Than Fiction: Representations Of Youth In Young Adult Dystopian Fantasy Fiction And Its Importance, Daman Mcconnell

University Honors Theses

This article takes on a comparative analysis between Young Adult Dystopian literature like Leigh Bardugo's Six of Crows and Suzanne Collins's The Hunger Games, focusing on how adolescents are represented in the discussion of Dystopian Fiction. Though mainly focusing on Six of Crows, these novels can be considered places where society and the world these characters live in are unforgiving and restrictive, forcing the growth of these adolescents to accelerate toward adulthood. Within Six of Crows lies the representations of antagonists going against the youth as adults with twisted senses of morality. In addition, this article also discusses …

Understanding The Crisis: The Evolution Of Indigent Defense In Oregon, Molly Pettit

University Honors Theses

On any given day in Oregon, hundreds of people charged with a crime do not have an attorney to represent them. Many of these people are in custody, and some face charges as serious as murder. How did our public defense system reach the point of crisis? What can be done about it? This paper provides a general overview of the right to counsel nationally before narrowing the focus to the state of Oregon. Using scholarly articles, historical documents, footnotes, meeting transcripts, and interviews, I explore the beginnings of court-appointed counsel in Oregon, and document how it has grown and …

Understanding Connections Between Mobility, Transportation, And Quality Of Life In Refugee Communities In Tucson, Arizona, Orhon Myadar, Arlie Adkins, Maia Ingram, Nicole Iroz-Elardo

TREC Final Reports

In this multidisciplinary research project we aimed to study mobility challenges that refugees in Tucson, AZ, experience after their resettlement. Using qualitative and quantitative data collected from interviews and survey data, we argue that mobility shapes the ways refugees foster social connections, attain employment and access educational opportunities. Accordingly, barriers to mobility negatively impact refugees’ perception of well-being in post resettlement. However, these challenges are not experienced evenly. Nor are refugees passive subjects who lack agency in overcoming various barriers they experience. The study reveals the resilience of the refugee community in navigating the intersectional challenges they confront related to …

Raps Sheet, Summer 2023, Retirement Association Of Portland State

RAPS Sheet: Monthly Newsletter

No abstract provided.

The Past, Present, And Future Of The Latino Paradox, Sheila Flores

University Honors Theses

The Latino/Hispanic paradox has left scholars and researchers puzzled as to how Latinos, despite facing socioeconomic challenges, show better health outcomes when compared to other racial/ethnic groups. The emergence of this phenomenon can be traced back to the 1980s/1990s when researchers first noticed Latinos in the United States having characteristics of lower mortality rates and improved health compared with non-Hispanic whites despite having a better socioeconomic status. Performing a literature review of scholars analyzing the past, present, and future of the Latino Paradox will thus allow for an understanding of its origin, current state, and the possible potential trajectories that …

Electrochemical Hydrogen Gas Production And Carbon Dioxide Sequestration Via In Situ Formation Of Nickel (Ii) Tris-(Pyridinethiolate) Derivatives, Dayalis Sv. Brown

Dissertations and Theses

In the research presented, we use electrochemical techniques, such as cyclic voltammetry and controlled potential electrolysis, to study in situ formation of hydrogen evolution catalysts which also reduce carbon dioxide. Using pyridinethiol-based ligands and a nickel (II) precursor, both homo- and heteroleptic complexes were investigated as catalysts to produce alternative fuels while mitigating greenhouse gas emissions. Existing synthetic procedures to obtain these Ni(II) catalysts lead to low yields of the complexes and difficulties in crystallizing samples for further analysis, limiting sample size and restricting the number of studies. While current research is heavily focused on photochemically-driven experiments, given that solar …