Digital Commons Network^™

Organizational Readiness Assessment For Fraud Detection And Prevention: Case Of Airlines Sector And Electronic Payment, Sultan Ayed Alghamdi

Dissertations and Theses

Payment processing systems have advanced significantly in the airline business. Because e-payments are easy, they have captured the attention of many companies in the aviation industry and are quickly becoming the dominant means of payment. However, as technology advances, fraud grows at a comparable rate. Over the years, there has been a surge in payment fraud incidents in the airline sector, reducing the platform's trustworthiness. Despite attempts to eliminate e-payment fraud, decision-makers lack the technical expertise required to use the finest fraud detection and prevention assessments; this research recognizes the lack of an established decision model as a hurdle and …

Cementation And Groundwater Chemistry In Pleistocene Paleodune Deposits Of The Central Oregon Coast, Adrienne Lynn Stephens

Dissertations and Theses

Pleistocene paleodune deposits occur along the Oregon coast, underlying coastal towns, roadways, and associated power and water infrastructure(s). Secondary cementation within these deposits provides some stability, allowing for near-vertical sea cliffs and roadcut outcrops. Yet, slope instability is a prevalent hazard observed within the paleodune deposits. Weakening of cementing agents via changes to groundwater conditions due to altered vegetation, climate change, or contamination, for example, could promote slope instability, threatening lives and infrastructure. This study aims to investigate the variability in the type and degree of cementation and to determine how they are affected by changes in groundwater conditions.

To …

Coriolis Forces On Wind Turbine Wakes Within A Wind Farm, Natalie Violetta Frank

Dissertations and Theses

As wind plant footprints and turbine scales grow larger, understanding the interactions between mesoscale physical phenomena, such as Earth's rotation, and large-scale farm wakes become increasingly important. Current field research notes spatial and temporal influences on the global farm wakes caused by Coriolis forces. However, using field experiments to study this is notoriously difficult as there is additional influence from wind veer in the atmospheric boundary layer caused by many factors ranging from terrain to the diurnal cycles. Experiments are performed on a wind plant under the influence of Coriolis forces. This is achieved by placing the wind plant on …

Comparing The Performance Of Different Machine Learning Models In The Evaluation Of Solder Joint Fatigue Life Under Thermal Cycling, Jason Scott Ross

Dissertations and Theses

Predicting the reliability of board-level solder joints is a challenging process for the designer because the fatigue life of solder is influenced by a large variety of design parameters and many nonlinear, coupled phenomena. Machine learning has shown promise as a way of predicting the fatigue life of board-level solder joints. In the present work, the performance of various machine learning models to predict the fatigue life of board-level solder joints is discussed. Experimental data from many different solder joint thermal fatigue tests are used to train the different machine learning models. A web-based database for storing, sharing, and uploading …

Factors Affecting Community Rating System Participation In The National Flood Insurance Program: A Case Study Of Texas, Ryan David Eddings

Dissertations and Theses

Since the 1960s, the frequency and cost of floods have, on average, increased in the United States. Concurrent with this increase in flood losses has been an increase in flood insurance claims paid out by the National Flood Insurance Program (NFIP). The existing literature shows that participation in the NFIP's Community Rating System (CRS) program successfully lowered flood losses and NFIP insurance claims in the participating communities. In spite of these successes, community participation in the CRS is low and the NFIP is currently more than $20 billion in debt. By identifying factors predicting participation and related barriers to entry …

A Case Study Of Mexican Immigrant Parents' Involvement In Their Children's Education, Evelia Vega

Dissertations and Theses

The purpose of this phenomenological case study is to explore the misconception that is occurring in schools today about Mexican Immigrant parents' involvement. Using the Sociocultural and Funds of Knowledge theories to ground this study, I conducted in-depth phenomenological semi-structured interviews with six participants. The participants were Mexican Immigrant parents who resided in a specific Oregon county where their children attended school. They shared their perceptions and experiences about being involved in their children's education. The analysis led to three themes in the findings, which were: Perceptions, Culture, and Communication. The first theme provided a glimpse into the participants' lived …

Environmental Enrichment Factors Associated With The Activity Level Of Bottlenose Dolphins Under Professional Care, Lisa K. Lauderdale, K. Alex Shorter, Joaquin Gabaldon, Jill D. Mellen, Multiple Additional Authors

Biology Faculty Publications and Presentations

Environmental enrichment can be used to improve the welfare of dolphins in zoos and aquariums. Bottlenose dolphins under professional care are typically provided with a range of enrichment that has a variety of features and levels of complexity at various frequencies. In the present study, a subset of data from a larger study entitled “Towards understanding the welfare of cetaceans in zoos and aquariums” (colloquially called the Cetacean Welfare Study) was used to examine the relationship between activity level and enrichment buoyancy as well as enrichment provisioning schedules. Survey data were collected from accredited zoos and aquariums related to the …

Why So Serious? Using The Belongingness Need Tenet From The Self-Determination Theory To Examine Workplace Humor And Its Outcomes, Katharine Lucille Mcmahon

Dissertations and Theses

The small body of literature for workplace humor remains fragmented due to the lack of coherence in conceptualization and theory. Furthermore, the distinction between positive and negative humor adds complexity to predicting the outcomes of humor. Focusing on the foundation aspect of humor as a form of social play provides guidance on choosing a theory-informed integrative framework that could explain the implications of humor in the workplace. The belongingness need tenet of the self-determination theory offers a promising framework to synthesize existing research and to direct future studies. Paper 1 reviews the literature and concludes with an integrative framework suggesting …

“Universities Ain’T What They Seem Like On Tv” A Critical Race Counterstory As A Literature Review About Students Of Color In Higher Education, Martín Alberto Gonzalez

Chicano/Latino Studies Faculty Publications and Presentations

As a doctoral student, I was tasked to write a literature review for my dissertation, which focused on the experiences of Mexican/Mexican American/Xicanx undergraduate students at a predominantly white university in the Northeast. Rather than writing a traditional literature review, I wrote a critical race theory counterstory to convey my findings. Drawing on a systematic analysis of books, peer-reviewed articles, and reports related to Students of Color in higher education, I wrote a story about a first-generation Xicano student who does a college-going presentation at his former high school about racism and resistance in higher education. Specifically, from my analysis …

A Collective Journey: Coalitional Critical Consciousness And Collaborative Methodologies In Bilingual Teacher Education, Rachel Snyder Bhansari

Curriculum and Instruction Faculty Publications and Presentations

This article analyzes critical reflection groups held over the course of a year-long collaborative ethnography between me as researcher and five novice bilingual teachers. Drawing on feminist theories of emotion as knowledge, I argue that coalitional critical consciousness developed in our meetings through emotional expression and acknowledgment of identity in connection to systems of power. I also explore the affordances of collaborative methods in the formation of collective critique for practicing teachers.

Risk Analysis For Asset Protection In Hoyt Arboretum, Portland, Or, Nathan Kossnar

Masters in GIS Practicum Reports

In order to fulfill Tree Risk Assessment Qualification (TRAQ) certification obligations to the International Society of Arboriculture (ISA), this project delineated areas within Hoyt Arboretum where tree hazards have the potential to fall on important infrastructure and areas of frequent use. The project utilized Metro’s RLIS lidar data to generate a canopy height model which was then applied to a variable window filter (vwf) algorithm to determine individual tree heights and locations throughout the park. Previously defined protection areas were used to determine which surrounding trees have the potential to damage structures or injure park visitors in the chance of …

Exploring Associations Between Military Identity And Well-Being Outcomes Among Post-9/11 Veterans After Separation, James David Lee

Dissertations and Theses

Approximately 200,000 service members exit the military each year; as of 2016, there were 19 million veterans in the U.S. As service members transition out of the military and acclimate to civilian life, they face a multitude of stressors. For example, estimates vary from 44 to 72% of veterans reportedly experience increased stress during their transition which often entails securing civilian employment, navigating interpersonal difficulties, and adapting to the challenges of civilian life. These stressors have harmful consequences and have been linked to physical and mental health, and suicide risk. Despite these findings, research examining the well-being of veterans following …

Community Gis Workshop Design & Delivery: Columbia County Geographic Workshop At Scappoose Public Library, Marty Marquis

Masters in GIS Practicum Reports

Geographic information systems (GIS) provide tools for industry, government, and the public to describe, visualize and organize space both conceptually and materially. Because the technology is complicated and potentially expensive, it is often out of the reach of those communities that might most benefit from its use, even as it’s routinely wielded by business interests, bureaucrats, and representative bodies to identify and legitimize administrative boundaries, potential areas for growth and profit, spatially oriented legislation (restricted areas, zoning), and so forth. Communities whose members know how to use a GIS gain potential advantages in deploying narratives that contest official plans for …

Leveraging A Campus Equity Walkthrough Evaluation (Cewe) Eportfolio To Assess First-Year Students’ Equity-Minded Learning And Campus Belonging, Oscar Fernandez, Andrew Lawrence, Melissa Shaquid Pirie, Gail Ring

University Studies Faculty Publications and Presentations

Scholarship demonstrates that ePortfolios enable students to collect work over time and reflect upon personal, academic, and career growth. However, a discussion on whether ePortfolios helps firstyear students describe their equity-mindedness and document their campus belonging perspectives remains mostly unexplored. The purpose of this point-in-time, qualitative research study is to describe first-year students’ experiences completing an on-campus physical walkthrough each spring quarter of 2017, 2018, and 2019. All first-year students were enrolled in a yearlong Freshman Inquiry course at Portland State University in Oregon. This study utilizes Saldaña’s (2016) in vivo coding approach to analyze students’ survey responses and summative …

#Onygo, Géraldine Blattner, Amanda Dalola, Stéphanie Roulon

PDXOpen: Open Educational Resources

#OnYGo is an innovative first-year French language e-textbook, designed as Open Educational Resource (OER), for learning beginning French (equivalent to one year at an American university). It is inspired by a remix of task-based, multiliteracies and communicative approaches, which provides students with opportunities to engage with French language and culture in a variety of contexts and situations, across a range of modalities. Through a wide range of activities, students develop and practice their language skills, and reflect on their cross-cultural knowledge and positionality in their understanding of the vast francophone landscape. #OnYGo is a first-year textbook that takes a DEI-forward …

“Why You Always So Political?”: A Counterstory About Educational-Environmental Racism At A Predominantly White University, Martín Alberto Gonzalez

Chicano/Latino Studies Faculty Publications and Presentations

Using critical race counterstorytelling, I tell a story about the experiences of Mexican/Mexican American/Xicanx (MMAX) undergraduate students at private, historically and predominantly white university in the Northeast. Drawing on in-depth interviews, participant observations, pláticas, document analyses, and literature on race and space and racism in higher education, I argue that the racially hostile campus environment experienced by MMAX students at their respective university manifests itself as a form of educational-environmental racism. Through narrated dialogue, Aurora (a composite character) and I delve into a critical conversation about how educational-environmental racism is experienced by MMAX students through a racialized landscape in the …

Theorizing The Korean Wave| K(Q)Ueer-Pop For Another World: Toward A Theorization Of Gender And Sexuality In K-Pop, Jungmin Kwon

School of Film Faculty Publications and Presentations

This article argues that the K-pop space, which on one level appears to be homogeneously cishetpatriarchal, actually encompasses multiple configurations of gender and sexual identity. Nonetheless, academic discussions about gender and sexuality in K-pop have been significantly weighted toward the idea of “soft masculinity” regarding male performers, thereby muffling other possible interpretations. I suggest a new term, K(Q)ueerness. It means the aesthetics, imaginations, practices, performances, and ideas of K-pop players sublate binaristic identifications, including masculinity and femininity and heterosexual and homosexual—as well as Butler’s distinction between performance and performativity—to embrace the multifarious expressions of gender and sexuality surrounding K-pop. This …

Perspectives From Frontline Organizations In The Portland Metro Region On Addressing Food Insecurity During The Covid-19 Pandemic, Megan Horst, Meg Grzybowski, Huijun Tan

Institute of Metropolitan Studies Publications

See video of related event: https://pdxscholar.library.pdx.edu/metropolitianstudies/155/

The main goal of this project was to contribute to an understanding of how frontline-serving food security organizations in the Portland region adapted during the COVID-19 pandemic and other emergencies in 2020-2022 and how they addressed increased rates of food insecurity among the region’s residents. We discuss the experiences of these organizations in serving the region’s food insecure residents, the many adaptations they made in the past few years, barriers experienced, and positive and critical reflections on local government. We identify lessons learned and promising ideas for how to better prepare our region, in …

The Pacific Sentinel, January 2023, Portland State University. Student Publications Board

The Pacific Sentinel

Editor: Dan Chilton

Articles in this issue include:

• Letter From the Editor
• Jeffrey Gibson at the Portland Art Museum
• Dakota Modern Exhibit
• Defining Abolition With Walidah Imarisha
• We Keep Us Safe
• Psilocybin Solution
• The Case For ACAB
• Something Needs to Be Done
• Comic

Bulletin: General Catalog Issue 2023-2024, Portland State University

Bulletin & Curriculum Change Documents

No abstract provided.

Developing A Standard Operating Procedure For Irrigated Agricultural Field Delineation And Irrigation Identification Using Examples From The Oregon-Idaho Border And Central California, Scott Milleson

Masters in GIS Practicum Reports

This practicum draws from experience working as an intern for The Freshwater Trust (an environmental nonprofit organization based in Portland, Oregon) from June to December of 2022. The work performed in this internship involved the delineation of agricultural fields using ArcGIS Online, an online collaborative mapping tool, as well as identifying and assigning irrigation type attributes on the Oregon-Idaho border along the Snake River, and the Deschutes Basin.

The purpose of this practicum project is to create a generalized guide for the delineation of agricultural fields and identification of irrigation type using a standard operating procedure for GIS interns, mapathon …

Engram, Vol. 2 2023, Portland State University. School Of Art + Art History + Design

Engram: A Journal of Art History Student Writing

• Editorial Foreword, Hailey Brink

• Reading Queerness in Hilma af Klint’s Diagrammatic Abstractions, Ana Bane

• Opus Anglicanum and May Morris: An Art Historical Study in Meaning Through Time, Rose Caughie

• The Development of El Greco’s Technique Through Mary Magdalen, Natalie Dunlap

• The Great Gold Belt Buckle of Sutton Hoo: A Look at Scandinavian Influence on Anglo-Saxon Style, Elizabeth Hines

• The Late Avar Treasure of Nagyszentmiklos, Ashley Hood

• Demystifying the Authorship of Artemisia Gentileschi’s 1622 Susanna and the Elders Aaron, Lindsay Wilson

• Research-Based Fiction: Redemption in Ruins, John Hooley

“I Don’T Have A Pile Of Money To Take Care Of Things”: Financial Stress And Housing Insecurity Among Low-Income Hispanic/Latinx Immigrant Families During Covid-19, Marisa Westbrook

OHSU-PSU School of Public Health Faculty Publications and Presentations

Housing, the single largest expense for low-income individuals, is inherently tied to economic security. During the COVID-19 pandemic, Hispanic/Latinx and Black communities experienced the highest rates of income loss, basic needs insecurity, and COVID-19 hospitalization and mortality. As part of an ethnographic case study, I conducted serial interviews over two years with 35 predominantly low-income Hispanic/Latinx immigrant families in one Denver, Colorado neighborhood during the COVID-19 pandemic. These interviews revealed that very few of these individuals were able to access governmental financial support as a result of limited dissemination despite facing unemployment, underemployment and rising rents. Although governmental financial support …

How Latino Anti-Blackness Upholds Racism In The United States: A Counterstory Book Review Of Tanya Katerí Hernández’S Racial Innocence, Martín Alberto Gonzalez

Chicano/Latino Studies Faculty Publications and Presentations

In this piece, the author uses counterstorytelling as a research method to write a book review of Tanya Katerí Hernández’s recently published book, Racial Innocence: Unmasking Latino Anti-Black Bias and the Struggle for Equality. Specifically, in this counterstory, the author created two composite characters, Alberto and his mother, Lola, made up of arguments from the book to engage in a real and critical dialogue about the anti-Blackness amongst Latinos in the United States. Drawing on Hernández’s argument that Latino anti-Blackness upholds racism, the author uses this counterstory to illustrate the various ways Latinos enact anti-Black ideologies and practices to …

Mentoring Middle School Teachers: What Research Says, Micki M. Caskey, Karen Weller Swanson

Curriculum and Instruction Faculty Publications and Presentations

The purpose of this research summary is to discuss mentoring as career-long professional development of middle level teachers. Mentoring can support developing pedagogies, curricula, culturally responsive teaching, and navigating the educational landscape. Mentoring can start at different stages to meet teachers’ needs and to impact their efficacy. While professional development is, many times, a day or two; mentoring is an on-going, teacher-directed learning environment that directly impacts the classroom.

Comparison Of Gis Methods For Estimating The Social Vulnerability In Response To Natural Hazards In The West Part Of The City Of Tualatin, Alex Troy

Geography Masters Research Papers

The influence of natural hazards on social vulnerability is an important topic in the risk analysis of natural disasters in the human-environment system. Due to the difficulty of directly measuring social vulnerability, composite indexes are used as a surrogate. Social vulnerability indexes attempt to characterize access to societal and local social services during or after disastrous events, using various indicators such as age, gender, ethnicity, socioeconomic status, housing organization, access to shelters, and medical facilities. Geographic information systems (GIS) are used for vulnerability analysis due to their visualization methods and demographic data analysis. However, limitations in GIS applications for social …

Comment On Gignac And Zajenkowski, “The Dunning-Kruger Effect Is (Mostly) A Statistical Artefact: Valid Approaches To Testing The Hypothesis With Individual Differences Data”, Avram Hiller

Philosophy Faculty Publications and Presentations

Gignac and Zajenkowski (2020) find that “the degree to which people mispredicted their objectively measured intelligence was equal across the whole spectrum of objectively measured intelligence”. This Comment shows that Gignac and Zajenkowski’s (2020) finding of homoscedasticity is likely the result of a recoding choice by the experimenters and does not in fact indicate that the Dunning-Kruger Effect is a mere statistical artifact. Specifically, Gignac and Zajenkowski (2020) recoded test subjects’ responses to a question regarding self-assessed comparative IQ onto a linear IQ scale when a normal IQ scale would likely have been more appropriate. More generally, researchers studying self-assessed …

Pathos, Winter 2023, Portland State University. Student Publications Board

Pathos

Editor: Bret Steggell

Food For All In Clackamas County, Jean Dahlquist, Katie Stringer, Alexander Scott Morgan, Marwa Zidi, Kim Hack-Davidson

Master of Urban and Regional Planning Workshop Projects

In partnership with OSU Extension Service and Clackamas County Public Health Division, this project used data and narrative research for planning community-based strategies to improve availability and access to culturally relevant, healthy food resources in Clackamas County. The student team updated demographic and health data from the past Blueprints for a Healthy Clackamas County and visualized the information through maps. Through community engagement in the Molalla area, the project helped determine food preferences, assess gaps, and provide recommendations for healthy, culturally preferred food resource availability specific to Molalla.

Unexpected Wins: Curating Comics And Teaching Manga From The Dark Horse Comics Collection, Elsa Loftis, Jon Holt

Library Faculty and Staff Publications and Presentations

A familiar staple of entertainment for a wide variety of readers, the comic book has not always held a regular place in the academic library. Concerning themselves with collecting more traditional expressions of scholarship, libraries have not historically dedicated much of their acquisitions budgets to this area. Therefore, the comic book or graphic novel was largely relegated to someone’s personal collection and would more likely be found on the shelves of a comic book store than the shelves of a university library.

Fast-forward to the present day, where library collections more commonly provide access to comic books, either in regular …