Digital Commons Network^™

Experiences Of Psychological Recovery From Work In Second-Generation Asian Americans, Laura Yang

Dissertations and Theses

Individuals of Asian descent make up approximately 7.4% of the U.S. population. As one of the fastest-growing minority groups, their population is projected to reach nearly 15% by 2065, with 38% being foreign-born – surpassing all other racial minority groups. Despite their increasing presence in the U.S. workforce, research on Asian workers' nonwork experiences remains limited. One key unexplored area is how Asian workers engage in recovery after work, considering their unique cultural and racialized experiences. Drawing on literature examining psychological recovery from work, this qualitative study employed multiple methods of analysis, both listening guide method and thematic analysis, to …

Functionality Risk Assessment And Risk-Based Management For Critical Infrastructure Systems, Anteneh Zewdu Deriba

Dissertations and Theses

Critical infrastructure systems such as transportation networks serve as the lifelines of modern society, supporting economic activity and ensuring access to critical services. Their disruption under extreme events can produce consequences extending far beyond physical damage to individual assets. In transportation networks for instance, failures of critical assets such as bridges and tunnels can reduce accessibility of communities, limit freight capabilities for commerce, and increase travel distance and travel time of road users. These consequences associated with the system functionality loss are tied not only to the physical vulnerability and failure of individual assets, but also to the system configuration …

Rethinking Teacher Education Programs: (Mis)Understanding Of Culturally Responsive Teaching Among Teacher Candidates, Shirley M. Sommers

Northwest Journal of Teacher Education

This article draws from a study conducted on pre-service teachers enrolled in a teacher education program. The study examines students’ understanding and misunderstanding of what constitutes culturally responsive teaching. This is a mixed methods study. A Likert-type survey and qualitative questionnaires were used to collect data. Descriptive statistics were used to analyze survey data, and a thematic coding method was used for analysis of qualitative data. The results of the study show that pre-service teachers are aware and knowledgeable of the term culturally responsive teaching as the term is widely used in the teacher education program in which they were …

Preparing Inclusive Educators: The Impact Of Fieldwork Experience On Preservice Teachers’ Knowledge, Skills, And Confidence In Working With Students With Disabilities, Adrian Jung

Northwest Journal of Teacher Education

This study examined preservice teachers’ confidence in working with students with disabilities across Elementary (n = 44), Secondary (n = 43), and Special Education (n = 52) programs. Using a quantitative pretest–posttest survey design, participants completed an adapted version of the Special Needs Confidence Scale before and after student teaching. Descriptive statistics and Tukey post hoc analyses were conducted. Results indicated overall increases in confidence following fieldwork, with Special Education preservice teachers reporting consistently higher confidence than Elementary and Secondary peers. Findings highlight the role of targeted preparation and field-based experiences in supporting inclusive teaching readiness.

Measurement Of Pollution Emissions From Natural Gas Stoves: Preparation For An Induction Cooktop Intervention Study, Jessica Zanella Lorensi

Dissertations and Theses

Humans spend ∼90% of their time enclosed in buildings. Indoors environments can be a source of pollutant which can affect health and productivity. Appliances that combust fossil fuels indoors, like stoves, are a critical source of a range of pollutants, like carbon monoxide (CO) and nitrogen dioxide (NO₂). In the US, the usual cooking fuel is natural gas (NG), presented in more than 30% of households in the country. Some studies in the literature linked cooking pollutants, including those specific to gas combustion, to various health conditions, including heart and respiratory diseases. Nitrogen dioxide, for example, can be …

Oak Savanna Expansion: Indigenizing Psu's Urban Landscape, Ash Herb

University Honors Theses

Since time immemorial Indigenous Peoples have resided in what is now named Portland of the Pacific Northwest in the Willamette Valley. For hundreds of years, this forested Land has been colonized, razed to stumps and covered in cement in order to build the urban landscape. Due to such destruction on a broad scale, we are experiencing the results of climate catastrophe. By finding ways to reclaim our relationship with Land and returning to Indigenous epistemologies, our urban landscape has the opportunity to shift towards restoration and prosperity. Indigenous plants have existed here, supporting humans in a reciprocal relationship, for thousands …

Lessons From The Club Homeschool Capstone: Testing, Data Discipline, And The Computer Science Curriculum, Shane Brown

University Honors Theses

This thesis looks at the CLUB Homeschool Capstone project to argue that Portland State University's Computer Science curriculum should introduce testing and data quality discipline earlier and more intentionally than it does now. As team lead of a seven-person team, I coordinated sprint planning, communicated with the sponsor, and developed custom Discourse plugins that enhanced an existing forum platform instead of creating a separate application database, as requested by the sponsor. The project's requirements document called for a formal testing plan, but our team lacked the practical experience to implement one. This gap became evident through my internships as a …

Improving The Fpga Radio Design Cycle: Implementing Dvb-S2 Modulation Using Verilator And Gnu Radio, Seth Pellegrino

Dissertations and Theses

In embedded digital radio systems, a central challenge is meeting the real-time throughput required to process the samples--especially for space-bound ultra-wideband SDRs which must handle more than 100 Gbps entirely onboard. An FPGA's programmable logic offers sufficient potential, but realizing a particular radio flow is a project usually fraught with defects and long turnaround times. We simulated Verilog modules in a custom harness that adapted a Verilated model to GNU Radio, which allowed for breaking down a complicated radio flow (here, DVB-S2 modulation) into a series of well-bounded problems each with clear criteria for success. The framework, built on open …

Identity, Needs, And Conflict Online: Understanding Cultural Fragmentation In The Black Diaspora, Imhile Omosede Dora Akpata

Dissertations and Theses

This study examines how identity formation, intra-diaspora tensions, and social media interactions contribute to fragmentation within the Black diaspora. While existing scholarship, including work by Godfried Asante and Elizabeth Chacoko has emphasized the fluid and socially constructed nature of Black identity, less attention has been given to how these processes operate in practice across diverse diasporic groups and how they are intensified in digital environments. This research addresses this gap by analyzing how individuals negotiate Black identity, how tensions emerge within the diaspora, and how social media shapes and amplifies these dynamics.

Drawing on Social Identity Theory developed by Henri …

Thermal Sensitivity Of Native And Introduced Crabs: Implications For Reproductive Success, Keria Moritsugu-Vandehey

Dissertations and Theses

Temperature is a major driver of physiological and developmental processes in marine organisms, and continued climate warming is expected to affect reproduction and recruitment in estuarine species. Early life stages are often particularly sensitive to environmental stress, yet relatively little is known about how warming influences embryonic development, hatching success, and larval survival across co-occurring native and introduced crab species.

This study examined the effects of temperature on embryonic development, hatching success, and early larval survival in four estuarine crab species from the Pacific Northwest: the introduced European green crab, Carcinus maenas, and the native shore crabs Hemigrapsus nudus …

Ƒ(Enlightenment): A Complex Adaptive Systems Model Of Recursive Causality And Human Meaning-Making, Daniel Lambert

Dissertations and Theses

Conflict Resolution has developed as a richly interdisciplinary field; however, its theoretical architecture remains fragmented across distinct bodies of scholarship. Existing approaches offer valuable but often isolated explanations of conflict behavior, limiting their ability to account for its complexity. This thesis addresses this limitation by advancing systems science as an organizing framework for integrating these perspectives. It introduces the Human-Complex Adaptive Systems (H-CAS) framework, which conceptualizes human behavior as a recursive adaptive process operating across interconnected regulatory domains. Within this model, conflict is not treated as a discrete event or purely deliberative process, but as an emergent property arising from …

Macro Social Work Education And Practice Over 1980–2024 Through Multiple Lenses: A Systematic Review Of The Empirical Literature, Bowen Mcbeath, Nguyen Thi Bich Thao

School of Social Work Faculty Publications and Presentations

Over the past 40 years, conceptual and empirical scholarship on macro social work has grown, particularly as the social work profession has turned to macro practice to respond to crises of neoliberalism and increasing social development needs. Using a systematic literature review with a sequential mixed-methods (quant→Qual) study design, we synthesize over four decades of empirical research (1980–2024) on master’s-level macro social work education, practice, and professional identity development. Our findings testify to the growth and diversity of macro practice from the perspective of social work educators, students, and alumni. Yet we find that this trend is accompanied by significant …

Trust And Signaling: An Exploratory Study Of Residential Attitudes Towards Energy Efficiency Advisors And Outdoor Media, Hal T. Nelson, Ivana Osmanovic

Public Administration Faculty Publications and Presentations

As the building sector shifts toward community-led energy efficiency (EE) initiatives to mitigate the climate crisis, scaling adoption requires understanding behavioral drivers. This study examines key drivers of EE measure adoption: perceived non-energy benefits, trusted advisors, and behavioral signaling. This research contributes to the energy policy and social science literature by empirically linking social trust with signaling preferences. It extends existing EE adoption decision theories by identifying distinct clusters of “expert” versus “close” advisors across demographic groups. Data from an experimental survey (n = 238) in Portland, Oregon, were analyzed using principal component analysis (PCA) and multivariate regression modeling. Results …

Fuel Tank Seismic Stability Program-Informed Displacement Maps Of Portland's Critical Energy Infrastructure Hub, Ana Tijerina Esquino

Dissertations and Theses

Oregon's Critical Energy Infrastructure (CEI) Hub in northwest Portland contains a large portion of the state's liquid fuel storage and distribution capacity and is located in an area susceptible to liquefaction and earthquake-induced permanent ground deformation during a Cascadia Subduction Zone earthquake. Initial Seismic Vulnerability Assessments submitted under Oregon's Fuel Tank Seismic Stability program provide valuable facility-specific information, but the assessments vary in subsurface characterization, treatment of fine-grained soils, ground motion selection, and deformation estimation methods. This variability complicates interpretation of regional seismic risk and motivates a consistent corridor-scale analysis.

This thesis develops CPT-informed displacement estimates for representative cross sections …

The Growing Needs For Young Adults’ Behavioral Health Services In Oregon And Pathways For Sustainable Service Deliveries, Anis Zaman

Hatfield Graduate Journal of Public Affairs

Recent OHA data indicate a significant surge in behavioral health cases among young adults ages 17-26 across Oregon. Every year in Oregon, the total number of young adults receiving medical treatment includes a significant number of them who have behavioral health challenges. This large group of young adults with mental health conditions is vulnerable to suicidal ideation and substance overdose. Despite sincere efforts by the Oregon Health Authority (OHA), the young adult mental health state of Oregon remains a concern. Therefore, there is a need for a comprehensive action plan for the sustainable delivery of mental health services to young …

Detecting And Correcting Systematic Image Distortion In Digital Atomic-Resolution Images From Crystals: Projected Symmetry Of Graphite Calibration Samples For Scanning Prove Microscopy And Subperiodic Crystals For Aberration-Corrected Transmission Electron Microscopy, Tyler Michael Bortel

Dissertations and Theses

Though it is an impressive technology, Scanning Tunneling Microscopy (STM) produces images commonly plagued by small systematic errors, often called "drift". These effects have a variety of causes, most notably nonlinear behavior of piezoelectric actuator tubes responsible for the positioning of the scanning probe or sample. One result of these distortions is a potential incorrect classification of the symmetry groups and projected Laue classes of recorded images from crystals—made possible by using recently developed objective methods. An implementation of a known method for detecting and correcting these errors is presented. This method operates strictly in Fourier space so as to …

Desert Desires And The War On Terror: Pre- And Post-9/11 Sheikh Romances, Leena Altamimi

Book Publishing Final Research Papers

The existence of sheikh romances as a subgenre has prevailed for well over a century in Western literature. Therefore, would one be able to discern whether the book cover imagery as well as the textual content showcases any tangible differences pre and post 9/11, and America’s “war on terror” campaign? A total of five books are observed: The Sheik by E.M. Hull published in 1919, Sarah Holland’s Desert Destiny published in 1991, Loreth Anne White’s The Sheik Who Loved Me and Penny Jordan’s Possessed by the Sheikh (both published in 2005), and lastly Crowned for the Sheikh’s Baby by Sharon …

Resisting Dualism In Contemporary Movement Building: Lessons From The Zapatista Movement On Creating Assertive, Insurgent, And Generative Praxis, Nico Killian

University Honors Theses

The common struggle of social movements, revolutionary and otherwise, in the contemporary era is how to establish a collective capable of asserting its politics via grassroots organizing in the face of the logic of global capitalism that atomizes communities, reconfigures the role of the state, and unleashes the fragmentizing and simultaneously totalitizing forces of the global market. Discourse regarding effective movement building in the contemporary era often falls into two dualistic avenues of resistance - complete autonomy that rejects any engagement or affiliation with political structures out of fear that it would result in demobilization through co-optation or negotiating a …

"Your Problem Is Not At All An Uncommon One": Visibility, Black Men, And Sexual Orientation In The Anti-Apartheid And Civil Rights Movements, Wren Addison Weddell

Dissertations and Theses

The South African Anti-Apartheid Movement and the American Civil Rights Movement are two of the most well-known examples of racial liberation movements, but there are few scholarly works that offer comparisons between the two. Furthermore, the experiences of people who fall outside the bounds of heteronormative society are often overlooked in historical research on both movements. Despite the dearth in research, there are several key factors that are revealed when comparing the lives of Black non-heterosexual men among the activists for both of these movements, including the role of the global community, unique local cultures, and how the state polices …

Intersectional Pathways To Prison And Sentence Disparities: Exploring The Role Of Race, Gender Identity, And Sexuality In Women’S Sentencing Outcomes, Jae Collett

Dissertations and Theses

This study explores the relationship between race, gender identity, sexuality, and prison sentence length using data from the Survey of Prison Inmates, 2016. While state and federal guidelines are ostensibly in place to prevent disparate sentencing outcomes, research still finds disparities in prison sentence lengths across identities of defendants. Women generally receive more lenient sentences than men, and may be shown chivalry when processed through the criminal legal system. However, qualifications for chivalrous treatment have historically only been accessible to certain women (i.e. cisgender, heterosexual, white women). The social and institutional exclusion queer women and/or women of color experience may …

Predicting Urban Heat‐Related Illness Across U.S. Climate Regions And Demographics, S. E. Brown, Vivek Shandas

Geography Faculty Publications and Presentations

We still know relatively little about how climate, demographics, built environment, and behaviors interact to drive hospitalizations during extreme heat events (EHEs). To address this paucity in understanding, we draw on extant literature to develop a transdisciplinary discrete event system dynamics (SD) modeling approach to address two research questions about the relationship between EHEs and heat‐related illnesses (HRIs): (a) How will changes in EHE frequencies, intensities, and durations in major Metropolitan Statistical Areas (MSAs) across the contiguous United States (CONUS) Climate Regions drive HRI morbidity across demographic, health‐status, and household groups over the coming decades? and (b) What are the …

Improved Method Of Evaluating Gas-Phase Air Cleaners Considering Adsorption And Desorption Mechanisms To And From Internal Test Chamber Surfaces, Casey Douglas Coffland

Dissertations and Theses

Portable air cleaners are playing an increasingly important role in managing indoor air quality in response to pressing issues like wildfire smoke events. Smoke is a complex mixture of gases and particulate matter; while established test methods exist for particulate matter, the dynamic behavior of gaseous pollutants is not well accounted for in current test methods. This is because prevailing air cleaner testing methods typically treat background losses as irreversible, whereas gases can engage in partitioning to and from test chamber surfaces. Ignoring these sorption interactions causes inaccurate estimation of an air cleaner's impact.

A new approach has been developed …

Low Cost Lightning Localization At Microwave Frequencies, Bradley Glaubitz

Dissertations and Theses

High precision lightning localization is essential for atmospheric research and public safety, yet the high cost of traditional VLF/LF systems restricts high resolution detection primarily to well funded agencies. Furthermore, conventional low frequency receivers often overlook microwave frequency emissions associated with lightning leader development. This thesis proposes a compact, low cost microwave frequency localization system operating in the 1.42 GHz band to provide an accessible alternative for high resolution mapping. The methodology utilizes an ARM Cortex M0+ microcontroller and a triggered 64 MHz 32 bit counter synchronized to a GPS Pulse Per Second (PPS) signal, achieving a temporal resolution of …

Flexible Load Communication Protocol Mapping Guide: Ieee 2030.5 To Ansi/Cta-2045, Joseph D'Ambrosia

Dissertations and Theses

As more variable renewable energy resources are connected to the grid, new challenges emerge for grid operators. Demand response programs can provide an additional degree of freedom to grid operators, by modulating the patterns of electricity consumption of residential, customer-owned, flexible loads. The success of demand response programs requires robust and reliable systems of communication between grid operators and flexible loads.

The ANSI/CTA-2045 communication protocol enables customer-owned devices to act as flexible loads. The SEP 2.0/IEEE 2030.5 communication protocol is used to manage distributed energy resources, including flexible loads. Interoperability can be realized by mapping ANSI/CTA-2045 and SEP 2.0/IEEE 2030.5 …

Beyond Predation: Invasive Green Crab (Carcinus Maenas) Alters Juvenile Pacific Oyster (Magallana Gigas) Function And Survival Across Environmental Gradients, Isabel Helena Mize

Dissertations and Theses

The establishment of the invasive green crab, Carcinus maenas, creates ecological and economic impacts in estuaries, particularly through predation on bivalves and alteration of species interactions. This thesis evaluates the direct predation, non-consumptive predator presence, and spatial management implications of C. maenas impacts on filtration rate of juvenile Pacific oysters, Magallana gigas, across laboratory, field, and GIS-based vulnerability mapping approaches. In laboratory conditions, clearance rates of M. gigas were measured over 72 hours across two temperatures (14°C and 18°C) and predator treatments including C. maenas, Pacific rock crab (Romaleon antennarium), both predators together, and a …

Process Development Of C63000 Nickel Aluminum Bronze For Cold Spray, Trent Lamont

Dissertations and Theses

Nickel-aluminum bronze (NAB) is widely used for maritime components but is traditionally limited to casting due to its complex microstructure. Fine β′ phase formation in NAB is governed by the solid-state transformation of the high-temperature β phase during cooling. This ordered martensitic β′ forms via diffusionless transformation, contributing to brittleness. Conventional metal additive manufacturing (AM) techniques, such as Laser Powder Bed Fusion and Directed Energy Deposition, experience high in-process cooling rates that promote fine β′ formation, compromising mechanical performance. Powder production similarly suffers from β′ formation, often requiring additional processing. Cold Mechanically Derived (CMD) powders, produced from wrought feedstocks, retain …

Comparative Effectiveness Of Olmesartan Medoxomil In Monotherapy And Combination Therapy With Other Arb Medications: Literature Review, Deepika Saini

University Honors Theses

Hypertension remains one of the leading health issues; however, the awareness and control remain limited, with approximately 1.4 billion people affected by hypertension, yet only one in five has the condition effectively controlled. Despite the availability of effective treatments, knowledge and awareness remain limited. Angiotensin II receptor blockers (ARBs) are widely used antihypertensive medications because of their efficacy and safety profiles. Among these, Olmesartan Medoxomil has emerged as a prominent option, demonstrating strong efficacy in lowering blood pressure, both as monotherapy and in combination with other antihypertensive agents.

This thesis examines the comparative effectiveness of Olmesartan Medoxomil versus other ARBs …

Perception And Identity Through The Deconstruction Of Images, Ember Gulden

University Honors Theses

Human lives are informed by images, which allow us to understand a moment from the past while transforming the way we remember it. A photograph is a representation of what was physically in front of a camera. However, the image after its capture holds no singular identity and is malleable, similar to memory. I use photography and mixed-media collage in my artistic practice to explore how perception and identity is affected by the images we consume. My BFA project "This Doesn't Have To Be The End" examines the complex nature of identity through the transformation of personal photographs into pixel-like …

Junk Journaling For Graphic Designers: Analog Play & Process In An Increasingly Digital Design Landscape, Kristina Rosgen

University Honors Theses

This thesis explores junk journaling as an accessible analog practice for young graphic designers experiencing digital fatigue, creative stress, and perfectionism. Through historical research, a hands-on workshop, and an interactive Readymag website, the project shows how junk journaling can help designers reconnect with play, process, physical materials, and the joy of making.

The Kashmir Conflict After The Abrogation Of Articles 370 And 35a Of The Indian Constitution: Geopolitical Dynamics And Human Security Implications, Rizwan Ali

Dissertations and Theses

The abrogation of Article 370 of the Indian Constitution on August 5, 2019, revoked the special autonomous status of Jammu and Kashmir (J&K) under the Indian administration. It further bifurcated it into two Union Territories under central Indian control. The move came amid a severe security lockdown and communication blackout that lasted for months. It was followed by instrumental legal, social, and economic developments that directly affected the area’s disputed status and the human rights of its residents. This research examines the geopolitical and human security implications of the abrogation and subsequent developments through a qualitative, analytical design, integrating Edward …