Digital Commons Network^™

A Comprehensive Examination Of Electronic Wayfinding Technology For Visually Impaired Travelers In An Urban Environment, Martin Swobodzinski, Amy T. Parker

TREC Final Reports

In this project, we distilled an inventory of smartphone-based electronic travel aid technology for the wayfinding of visually impaired travelers in an urban environment based on a thorough review of software marketplaces and the academic literature. Subsequently, we solicited structured input from domain experts and visually impaired individuals on their experiences and evaluations pertaining to personal telecommunication technology for safe and efficient wayfinding. The insights gained from this project are instrumental for the conceptualization and development of integrated route planning and guidance application that address the distinct information needs and expectations of individuals with a vision-related functional impairment. The very …

Correlates Of Same-Sex Behavior Disclosure To Health Care Providers Among Black Msm In The United States: Implications For Hiv Prevention, Christina J. Sun, Karin Tobin, Pilgrim Spikes, Carl Latkin

OHSU-PSU School of Public Health Faculty Publications and Presentations

Disclosure of same-sex behavior to health care providers (HCPs) by men who have sex with men (MSM) has been argued to be an important aspect of HIV prevention. However, Black MSM are less likely to disclose compared to white MSM. This analysis of data collected in the United States from 2006–2009 identified individual and social network characteristics of Black MSM (n = 226) that are associated with disclosure that may be leveraged to increase disclosure. Over two-thirds (68.1%) of the sample had ever disclosed to HCPs. Part-time employment (AOR = 0.32, 95% CI = 0.11–0.95), bisexual identity (AOR = …

Factors Influencing The Use Of Cognitive-Behavioral Therapy With Autistic Adults: A Survey Of Community Mental Health Clinicians, Brenna B. Maddox, Samantha Crabbe, Jessica Fishman, Rinad S. Beidas, Lauren Brookman-Frazee, Judith Miller, Christina Nicolaidis, David Mandell

School of Social Work Faculty Publications and Presentations

Cognitive–behavioral therapy (CBT) can improve anxiety and depression in autistic adults, but few autistic adults receive this treatment. We examined factors that may influence clinicians’ use of CBT with autistic adults. One hundred clinicians completed an online survey. Clinicians reported stronger intentions (p = .001), more favorable attitudes (p < .001), greater normative pressure (p < .001), and higher self-efficacy (p < .001) to start CBT with non-autistic adults than with autistic adults. The only significant predictor of intentions to begin CBT with clients with anxiety or depression was clinicians’ attitudes (p < .001), with more favorable attitudes predicting stronger intentions. These findings are valuable for designing effective, tailored implementation strategies to increase clinicians’ adoption of CBT for autistic adults.

Autistic adults have high rates of anxiety and depression (Buck et al. 2014; Croen et al. 2015), and often do not receive quality mental healthcare for these or other co-occurring conditions (Maddox et al. 2019; Roux et al. 2015; Shattuck et al. …

Amp’S Top Ten Tips For Engaging With Young People, Research And Training Center For Pathways To Positive Futures, Portland State University

School of Social Work Faculty Publications and Presentations

This tip sheet advises service providers and others how to engage successfully with youth, using specific examples to illustrate effective (and ineffective) communication.

Planning For Multiple Shopping Goals In The Marketplace, Jacob Suher, Szu-Chi Huang, Leonard Lee

Business Faculty Publications and Presentations

Four online grocery‐shopping experiments and one field study using video‐tracking technology at a grocery store document how shoppers’ motivation evolves from the beginning to the end of their shopping trips. We uncover unique motivational patterns as shoppers achieve multiple subgoals (i.e., choose multiple grocery items) to complete their trips: a monotonic decrease in motivation for shoppers with a shopping list versus a curvilinear trend (i.e., decrease then increase) in motivation for shoppers without a list. In addition, we demonstrate how to reverse the observed patterns for shoppers with a list by changing their reference points for tracking progress. The discovery …

Post-Colonial Fantasy And Intersectional Heroism Within Who Fears Death, Miranda Hubbard

University Honors Theses

Speculative fiction has a long and troubled relationship with colonialist ideologies. While the abstraction within the genre lends itself to broader societal critiques, in practice it can contain problematic narratives that dehumanize othered groups (ibid), enforce racial constructs, and avoid direct engagement with the oppressive structures it invokes. Nnedi Okorafor's novel, Who Fears Death, resists this defamiliarization. Utilizing the conventions of speculative fiction, Okorafor conjures real-world racist and sexist structures. Who Fears Death is an intersectional text, blending genre, race theory, and feminism to interrogate questions of authorship, agency, and identity within a colonialist, patriarchal society. Its representation of …

Analyzing The Visual Grounding Of "Referring Relationships", Kennedy Hahn

University Honors Theses

There have been numerous efforts to accomplish the task of visual grounding (Deng et al., 2018, Johnson et al., 2015, Krishna et al., 2018), the act of matching regions or objects within an image with natural language queries. But with each method released, there is a growing uncertainty about the effectiveness of the machine’s learning. Are computers learning what we expect, and are datasets properly testing this learning? (Cirik et al., 2018). In this thesis, I analyze the visual grounding method of “Referring Relationships” (RR) by Krishna et al. (2018). I find that RR’s relationship information does not have a …

A Secure Anti-Counterfeiting System Using Near Field Communication, Public Key Cryptography, Blockchain, And Bayesian Games, Naif Saeed Alzahrani

Dissertations and Theses

Counterfeit products, especially in the pharmaceutical sector, have plagued the international community for decades. To combat this problem, many anti-counterfeiting approaches have been proposed. They use either Radio Frequency Identification (RFID) or Near Field Communication (NFC) physical tags affixed to the products. Current anti-counterfeiting approaches detect two counterfeiting attacks: (1) modifications to a product's tag details, such as changing the expiration date; and (2) cloning of a genuine product's details to reuse on counterfeit products. In addition, these anti-counterfeiting approaches track-and-trace the physical locations of products as the products flow through supply chains.

Existing approaches suffer from two main drawbacks. …

Versatile Binary-Level Concolic Testing, Bo Chen

Dissertations and Theses

Computing systems are experiencing an explosive growth, both in complexities and diversities, ushered in by the proliferation of cloud computing, mobile computing, and Internet of Things. This growth has also exposed the consequences of unsafe, insecure, and unreliable computing systems. These all point to the great needs of sophisticated system validation techniques. Recent advances in research on symbolic execution has shown great promises for automated software analysis, e.g., generating test cases, finding bugs, and detecting security vulnerabilities. However, symbolic execution is mostly adopted to analyze user applications, while modern computing systems in practice consist of many components shipped by various …

Design Of A Canine Inspired Quadruped Robot As A Platform For Synthetic Neural Network Control, Cody Warren Scharzenberger

Dissertations and Theses

Legged locomotion is a feat ubiquitous throughout the animal kingdom, but modern robots still fall far short of similar achievements. This paper presents the design of a canine-inspired quadruped robot named DoggyDeux as a platform for synthetic neural network (SNN) research that may be one avenue for robots to attain animal-like agility and adaptability. DoggyDeux features a fully 3D printed frame, 24 braided pneumatic actuators (BPAs) that drive four 3-DOF limbs in antagonistic extensor-flexor pairs, and an electrical system that allows it to respond to commands from a SNN comprised of central pattern generators (CPGs). Compared to the previous version …

Design And Experimental Evaluation Of Deepmarket: An Edge Computing Marketplace With Distributed Tensorflow Execution Capability, Soyoung Kim

Dissertations and Theses

There is a rise in demand among machine learning researchers for powerful computational resources to train complex machine learning models, e.g., deep learning models. In order to train these models in a reasonable amount of time, the training is often distributed among multiple machines; yet paying for such machines (either through renting them on cloud data centers or building a local infrastructure) is costly. DeepMarket attempts to reduce these costs by creating a marketplace that integrates multiple computational resources over a distributed TensorFlow framework. Instead of requiring users to rent expensive GPU/CPUs from a third-party cloud provider, DeepMarket allows users …

Introducing Cornerstone Courses Into Electrical And Computer Engineering Curriculum, Branimir Pejcinovic

Electrical and Computer Engineering Faculty Publications and Presentations

Almost all engineering programs have some form of final, culminating design experience, which is typically taught as a senior year capstone design course. Due to ABET requirements these are team and project based. Many programs will also have projects interspersed among required and elective courses, but these tend to be overrepresented in freshman year. We have recently introduced a set of courses during sophomore year that mimic our approach to capstone courses and provide authentic engineering design experience. These so-called cornerstone courses provide scaffolding by introducing all of the components of teamwork and design process but in a less formal …

Closure Or Censure? Examining The Determinants Of Disclosure Of Sexual Assault Among College Students, Whitney Head-Burgess

Dissertations and Theses

Sexual assault is an ongoing problem on college campuses, with some projections indicating that one in four college women has experienced some sexual coercion or assault during her time at university. Recent national policy has strove to address the problem through legislation like the 2013 Campus Sexual Violence Elimination Act. Nonetheless, the crime remains the most underreported in the nation despite policy and law which explicitly defines what constitutes sexual assault. However, most victims of sexual assault will disclose what happened to someone else, even if they choose not to report.

This research examines sexual assault disclosure practices on a …

Large-Scale Der Aggregations Of Electric Water Heaters And Battery Inverter Systems, Kevin Marnell

Dissertations and Theses

Distributed energy resources like residential electric water heaters and residential battery inverter systems offer a small amount of change to the grid individually. When aggregated however, these assets can cause major effects to the electric grid. Aggregating these resources allows them to take on generator-like functions with the ability to increment power and decrement power.

The Western Energy Imbalance Market is an energy market offering 15 minute and 5 minute markets for energy transactions between balancing areas. Generation assets make increment and decrement bids. Traditionally the only entrants to this market have been large scale generators and large scale assets …

Regional Modeling Of The Glaciers Of The North Cascades Mountains, Washington, Usa, Christina Eileen Gray

Dissertations and Theses

Glaciers in the North Cascades store winter snowfall as ice and release it in late summer as melt, providing an important regional source of water and hydroelectric energy. The future of glaciers in the North Cascades, Washington, were evaluated using a regional glaciation model driven by the Community Climate System Model 4 global climate model. The climate model was coupled with three Representative Concentration Pathways (RCPs), 2.6, 4.5, and 8.5. These RCPs provide a business-as-usual scenario (RCP 8.5), which assumes society makes little to no efforts to reduce greenhouse gas emissions, a best-case scenario (RCP 2.6) with strong attempts to …

Gender And The Voir Dire Process, Tasha Ann Lane

Dissertations and Theses

The jury selection process (also known as voir dire) has been examined previously in many ways, including racial impacts. Previous research suggests the need for more examination of how and if gender impacts the voir dire process. The lack of knowledge about how gender impacts voir dire might also have implications for public respect and trust in the court system. For example, theories of procedural justice suggest that individual experiences with the legal system affect whether they view the entire legal system as being legitimate. This is important because this perception then impacts how the public interact with the system. …

Students Perception Of Open Textbooks, Karen Bjork

Library Faculty and Staff Publications and Presentations

Textbooks have long been an integral learning platform in higher education. As the rising cost of textbooks continues to burden students, many libraries have begun to facilitate the creation and publishing of open textbooks. In 2013, with the support of a Provost-backed initiative, Portland State University (PSU) Library developed an open textbook publishing program that works with faculty to create open textbooks that are designed specifically for the courses that they teach. The publishing initiative, called PDXOpen, has published 21 open textbooks. The program has saved over 2,890 PSU students over $272,000 on the cost of their books.

PSU Library …

Fuse: People With Frequent Utilization Of Public Services In Clackamas County, Oregon: Potential Service Enhancements, Karen Cellarius, Marisa Zapata, Eric Einspruch, Cameron Mulder, Thuan Duong, Aliza Tuttle

Homelessness Research & Action Collaborative Publications and Presentations

The goal of this study was to answer five very specific questions about individuals with high service utilization and the systems that serve them. The data for this study comes from administrative system data, informational conversations and meetings with community partners, formal interviews with service providers, and interviews with consumers with frequent service utilization.

Limitations: The rates of mental illness, addiction and homelessness are likely to be higher than they appear in this report due to the way these characteristics were gathered or recorded in system databases. Historically marginalized populations are increasingly underrepresented in datasets.

Differentiation And Diffusion: Shifting Public Opinion Attitudes Toward Foreign Policy In North Africa, Lindsay J. Benstead

Political Science Faculty Publications and Presentations

Drawing on Arab Barometer data, this article provides the backdrop for understanding continuity and change since the Arab Spring in national-level public opinion attitudes toward economic and political foreign policy issues in North Africa, inclusive of Algeria, Egypt, Libya, Morocco, and Tunisia. The article leverages the concepts of differentiation and diffusion to understand how international affairs shape public opinion in North Africa since the Arab Spring. Three findings emerge. First, public opinion about domestic and international issues are linked in the minds of North African citizens and foreign policy issues are more important factors underlying pre- and post-Arab Spring politics …

The Impact Of Framing On Acceptance Of Cultured Meat, Christopher Bryant, Courtney Dillard

University Studies Faculty Publications and Presentations

Cultured meat can be produced from growing animal cells in-vitro rather than as part of a living animal. This technology has the potential to address several of the major ethical, environmental, and public health concerns associated with conventional meat production. However, research has highlighted some consumer uncertainty regarding the concept. Although several studies have examined the media coverage of this new food technology, research linking different frames to differences in consumer attitudes is lacking. In an experimental study, we expose U.S. adults (n = 480) to one of three different frames on cultured meat: “societal benefits,” “high tech,” and “same …

A Resource Constrained Shortest Paths Approach To Reducing Personal Pollution Exposure, Elling Payne

REU Final Reports

As wildfires surge in frequency and impact in the Pacific Northwest, in tandem with increasingly traffic-choked roads, personal exposure to harmful airborne pollutants is a rising concern. Particularly at risk are school-age children, especially those living in disadvantaged communities near major motorways and industrial centers. Many of these children must walk to school, and the choice of route can effect exposure. Route-planning applications and frameworks utilizing computational shortest paths methods have been proposed which consider personal exposure with reasonable success, but few have focused on pollution exposure, and all have been limited in scalability or geographic scope. This paper addresses …

The Grandma Reporter Issue Two: Intimacy, Salty Xi Jie Ng

The Grandma Reporter

A collaborative project by Betty Canham, Crystal Sasaki, Ellen Gee, Erika Dedini, Jacqui Jackson, Maureen Phillips, Mildred Winters, Pamela Sky Jeanne, Roshani Thakore, Salty Xi Jie Ng, Sharon Cooper, Susan Green, Tammy B, and Valerie Wrede

The Grandma Reporter is a collaborative publication project on senior women's culture across the Earth. We are a space for intimate exchange about: style, isolation, and adventure; aging bodies, wrinkles, bunions, caregiving, and death; considering the struggles of growing old in a young, technology-focused world; swimming as a magical way to keep fit in spite of on-land mobility challenges; food, genes, and other things …

Training Needs Of Peer And Non-Peer Transition Service Providers: Results Of A National Survey, Pauline Jivanjee, Leigh Grover, Kristin Thorp, Brie Masselli, Johanna Bergan, Eileen Brennan

School of Social Work Faculty Publications and Presentations

Participatory action research processes guided a national online survey of service providers working with transition age youth with mental health challenges. The survey investigated transition service providers’ ratings of the importance of competencies and skills, self-assessed need for training in these competencies and skills, their preferred training modalities, and obstacles to engaging in training. The 254 participants identified trauma-informed care, understanding youth culture, promoting natural supports, and using culturally responsive practices as most important training needs. Age, years in current job, years in transition work, and race/ethnicity predicted training needs regarding some competencies and skills. Peer providers expressed preferences for …

Parasocial Relationships With Podcast Hosts, Mikhaela Nadora

University Honors Theses

This study is a deductive thematic analysis of podcast hosts' attributes that explores how parasocial relationships (PSR) might be cultivated with listeners. The author analyzes five episodes of a podcast, Stuff You Should Know, and use its transcriptions to code for themes of identification, conversation practices, and authenticity to suggest ways PSR is developed by the podcast's hosts.

Results found host behaviors suggest how listeners may react to them. The combination of the effect of social deixis while describing personal characteristics suggest listeners may feel physically and emotionally closer to the hosts. Listeners may also see them as more trustworthy …

Convivial Clothing: Engagement With Decommodified Fashion In Portland, Or, Sarah Guldenbrein

Dissertations and Theses

In a capitalist system demanding perpetual accumulation, producers invest significant resources into proving the superiority of new products over existing ones. When the normative concept is "better" rather than "good" consumers can never reach a sense of sufficiency. One countermovement is that of degrowth. Degrowth scholars advocate for a voluntary and democratic transition to a post-growth future. This thesis contributes to the emerging literature on degrowth by examining alternatives to "fast fashion," an industry with a huge environmental impact and notoriously high turnover. Drawing on participant observation and semi-structured interviews with participants in Portland, Oregon's clothing swaps and Repair …

Culturally Responsive Social Work Methods For Use With Indigenous Peoples, Sara Davidson Cowling

PSU McNair Scholars Online Journal

The history of the American social work profession and its interactions with Indigenous people is fraught with cultural erasure. Social workers have been complicit and outright participatory in various forms of settler state violence, especially in the form of forced cultural assimilation through the Indian Adoption Project and Indian Residential schools. While these institutions are now closed, and federal law ostensibly prevents such harms from recurring, Indigenous people are often rightfully suspect of social workers and the work they do. To avoid perpetuating American settler state violence, social workers need to approach their work with a solid analysis of the …

2019 Commencement Program, Israel Bayer, Doreen Dodgen-Magee, Yasuhisa Iida, Rick Miller, Nanette Reid

Commencement Archives 2010-19

The program for the Portland State University 2019 Commencement ceremonies, held June 14, 15, and 16, 2019.

Doreen Dodgen-Magee gave the commencement address to the Graduate School of Education ceremony on June 14, 2019.

Rick Miller, Yasuhisa "Yaz" Iida, and Nanette Reid delivered keynote addresses to the School of Business ceremonies on June 15, 2019.

Israel Bayer gave the commencement address and received an honorary doctorate during the Professional Schools ceremony on June 16, 2019.

Working Paper No. 04, Marx And Religion, Lauren Sweger-Hollingsworth

Working Papers in Economics

This inquiry seeks to establish that, in his writings, Karl Marx offers his perspectives on religion. The origins of Marx’s conception of religion can be traced to his family history, adolescence, and time at the University of Berlin. Marx’s criticism of contemporary philosophy offers a penetrating account of his views on religion, proving critical of the individualism and idealism implemented by his contemporaries. In Marx’s judgement, religion offers a false sense of solace in a world marked by abuse. Religion rationalizes domination, sows societal divisions, and preserves oppressive institutions. Marx’s materialist approach focuses on the real-life relations and activities within …

Working Paper No. 05, Proudhon, Bakunin And Anarcho-Socialism, Lauren Sweger-Hollingsworth

Working Papers in Economics

This inquiry seeks to establish that Pierre-Joseph Proudhon and Mikhail Bakunin advanced ideas supporting what can be identified as anarcho-socialism, and the distinctness in their approaches can also be associated with splits that emerged with the First International Workingmen’s Association. For Proudhon, the institution of property entrenches inequality. In Proudhon’s judgement, society must orient towards advancing independence, proportionality, equality, and individual autonomy without limitations from legal structures. In Bakunin’s anarcho-socialist view, society must reject all forms of authority. In Bakunin’s conception of society, economic and political structures must be constructed from base to summit, founded upon the rights of free …

Working Paper No. 24, Economic Thought During Japan’S Meiji Era, Karson M. Pence

Working Papers in Economics

This inquiry seeks to establish that it was Fukuzawa Yukichi who played a key roled in developing ideas that assisted the modernization of Japan, leading up to and especially after the Meiji Reformation of 1868. In An Outline of a Theory of Civilization [1875], Fukuzawa advances a clear understanding that Japan should make the shift from a producer nation to a manufacturer nation, and without having to bear the costs of importing vast sums of foreign capital. Under suspicion that the 250 year rule of the Bakufu left the Japanese economy stagnant and weak, Fukuzawa asserted that the only means …