Digital Commons Network^™

Why People Pee In Public: Is A Lack Of Public Restrooms Keeping Portland Too Weird?, Cece Austin

Student Research Symposium

Various factors, including gender, housing status, socioeconomic status, and disability, impact access to public restrooms in Portland, Oregon. A pilot program involving the implementation of public restrooms has caused a significant reduction in public defecation in San Francisco. This research demonstrates the efficacy of this existing working model, which could be similarly implemented in Portland with some adjustments. Portland has the Portland Loos, which are single-stall, outdoor public restrooms. Still, many are not open 24 hours. An analysis of publicly available Google reviews indicates consistent poor cleanliness and Portland Loos being locked at times when they are advertised to be …

Respiratory-Swallowing Coordination In Motor Neuron Disease: A Scoping Review, Mariam Z. Mansoor

Student Research Symposium

Respiratory-swallowing coordination (RSC) is essential for providing efficient breathing and optimal swallowing function. Most commonly used methods of measuring RSC include nasal thermistry, and respiratory inductance plethysmography (RIP) to determine direction and durations of airflow. Outcome measures include swallow apnea duration (SAD) and respiratory phase pattern (RPP), i.e., direction of airflow pre- and post-SAD. The goal of the current project was to conduct a scoping literature review of RSC, focusing on the motor neuron disease (MND) population, including people with amyotrophic lateral sclerosis (ALS). A multi-engine literature search was conducted in 2023-24 via PubMed and Google Scholar. No limitations were …

Interpersonal Experiential Learning And Cancer Research Training Designed To Enhance The Motivation Of Participating Interns Utilizing Self-Determination Theory: A Longitudinal Study With Photovoice Methodology, Alex Vazquez-Cortes, Dierdre Mckay, Connie Tran, Bridget Bugla, Tiffany Bui, Kaisa Holt, Anthony Phan, Clare Hansen, Amy Lin, Amanda Braley, Lisa Marriott Phd

Student Research Symposium

Historically, the underrepresentation of individuals from disadvantaged backgrounds, disabled, and diverse racial/ethnic groups in STEM fields is prevalent. Equity in stem fields allows for different perspectives and knowledge backgrounds allows for the cognitive diversity needed to tackle complex research topics. The Knight Scholars Program (KSP) aims to support underrepresented and disadvantaged high school and undergraduate students pursuing a research career by teaching them the tools they need to succeed. Spanning over three summers, KSP utilized the Self-Determination Theory (SDT) of motivation to create an inclusive learning environment and to strengthen the high schoolers' motivation to pursue research careers focusing on …

Construction And Mutagenesis Of Ssv1 Mutants In Extreme Viruses, Lou Ann F. O'Connor, Jono Abshier, Kenneth M. Stedman

Student Research Symposium

Archaeal viruses with unique structures such as spindle-shaped virions are found abundantly in extreme environments like geothermal hot springs around the world. Among all spindle-shaped viruses, the model Sulfolobus Spindle-shaped Virus 1 (SSV1) is best studied. Creating the lemon-shaped or spindle-shaped virion structure are two proteins, VP1 as the major capsid protein, and VP3 as the minor capsid protein. The primary structure of VP1 consists of a proteolytic cleavage site at position 66 that is believed to be necessary for virus evolution. Recent studies showed that genetic mutation of the amino acid, glutamate (E) at position 66 in VP1 which …

Under The Influence Of Parents: A Longitudinal Study Of Children’S Walking, Kyu Ri Kim, Jennifer Dill

Student Research Symposium

Researchers have studied children's active travel; however, they have mostly been cross-sectional studies dealing with commuting to school and parental attitudes. To find ways to promote children's active travel, this longitudinal study uses panel data (two time periods) to examine how parents' actual walking and safety perception correlated with children’s walking. Using data from 240 children aged 4-16 and their parents in Portland, Oregon, we estimated a cross-lagged panel model (CLPM) to analyze the continuous relationships. We found that parents with more positive attitudes toward their walking walked more, and their children also walked more in both periods. In addition, …

Promoting Student Engagement In Research In An Undergraduate Language-Development Course, Mitchell Kloer, Isabelle Trujillo, Teresa Roberts, Carolyn Quam

Student Research Symposium

This presentation will provide student perspectives on benefits of incorporating inclusive research activities within an undergraduate Speech and Hearing Sciences course. In Speech and Language Development in Children (SPHR 372U), instructor Quam incorporates a research project focusing on an issue of equity, inclusion, and social justice. One overarching goal is to reduce barriers of access to scientific research and increase engagement for college students, particularly those from historically underrepresented groups. The project is segmented into 3 steps that mirror literature review, critical analysis, and proposal. The project is collaborative, iterative throughout the term, and each step in the research process …

Stem Students And Faculty See Value In A Classroom Belonging Exercise, Kaisa S. Holt, Elizabeth A. Runkel-Baez

Student Research Symposium

Enhancing belonging in undergraduate STEM classrooms are pivotal for student success. This study examines a belonging exercise's implementation and impact in multiple STEM courses from 2017 to 2019. Faculty perspectives were gathered from a survey of 92 respondents, indicating a high level of perceived benefit (92%). Coded responses highlighted shared experiences and diversity mindset promotion. 30% explicitly mentioned benefits for both students and instructors. Additionally, 76% of faculty saw potential of belonging exercises in their own classrooms. It is important to promote using belonging interventions and also understand how STEM students perceive their value and utility. Three focus groups with …

Community Resilience In Portland Parkland Soils, Jason W. Triefenbach

Student Research Symposium

Proposing soil nutrient testing as a model for community research and ecology education, this presentation considers pathways to raising public engagement with sustainability issues while enhancing community resilience and social capital. "Community Resilience in Portland Parkland Soils" represents my research thus far on the conjoined topics of urban soils and community efficacy, in which I have attempted to synthesize biogeophysical processes in city parklands with strategies for raising public awareness about urban ecosystems.

I measured and compared soil nitrogen levels at 8 iconic Portland area parks using commercially- available garden test kits, while concurrently researching the historical and contemporary land …

Community Responses To Us Regional Clean Hydrogen Hubs, Bethani Turley

Student Research Symposium

In 2023, the Bipartisan Infrastructure Law designated 7 billion dollars to fund regional hydrogen hubs across the US with the goal of kickstarting a utility scale hydrogen economy for the US electric grid. A promising technology in the renewable energy transition, hydrogen can be made from a multitude of energy sources, often designated by colors: green hydrogen is made from solar and wind, pink hydrogen from nuclear, and blue hydrogen from natural gas. This presentation examines this new hydrogen economy through the case study of the Appalachian Regional Clean Hydrogen Hub (ARCH2). ARCH2 is a blue hydrogen hub proposal by …

Power & Planning: A Critical Comparison Of Tribal And Non-Tribal Wildfire Protection Plans, Christian J. Heisler

Student Research Symposium

In 2003, the US government passed the Healthy Forest Restoration Act, which urged wildfire-prone communities to develop Community Wildfire Protection Plans (CWPPs). These plans allow local groups to contextualize risk, practice social learning, and develop social capital while addressing wildfire risk. Within planning realms, however, decision-making power is usually concentrated unequally between social groups which can limit the influence of marginalized communities. Tribal nations, specifically, have been excluded from wildfire planning since European contact, signaling that CWPPs may not reflect Indigenous worldviews and priorities. Given the recent push from the federal government to increase land management collaboration with tribes, it …

Behavioral Intention For Ai Usage In Higher Education, Isaac A. Odai, Elliot Wiley

Student Research Symposium

This study sought to further understand the cognitive factors that influence undergraduate students' behavioral intention to use generative AI. Generative AI's presence in academic spaces opens the door for ethical and pedagogical questions. This study surveyed 51 undergraduate communication students to measure their attitudes, subjective norms, self efficacy and their behavioral intention to use GenAI for school work. The results of this study showed behavioral intent had a positive relationship with attitudes and subjective norms. The implications of these findings show that personal beliefs and the perceived beliefs of others are correlated to undergraduate students’ intent to use GenAI for …

Considering The Historical And Systemic Context, To What Extent Are Cuban Women’S Healthcare And Reproductive Rights Affected By The Privacy And Social Influence Of Cuba Today?, Autumn Cowell

Student Research Symposium

This paper will examine how historical and systemic values continue to frame social influences thus impacting Cuban women’s healthcare and reproductive rights. If the impact of history and systems still affects social influences then Women’s Healthcare and Reproductive Rights may be compromised. This investigation will highlight the potential benefits and risks of historical and systemic values that have affected challenges or changes within Cuban culture. And how these social influences are found within the areas of prevention, intervention, and treatment. This paper hopes to outline how the Cuban government and society are sustaining the protection of Cuban women’s access to …

Tragedy, Ownership, And Hospitality In Gerar: Lessons From Social Psychology, Moshe S. Rachmuth

World Languages and Literatures Faculty Publications and Presentations

Can the story of Isaac be read with tragedy in mind or is the second patriarch the comedic relief of Genesis? Scholars mostly see Isaac as the book’s fool and thus laughable. Even more clearly so in Gen 26:7-11 which recounts how, during the hunger migration of Isaac and Rebekah to Philistine Gerar, Isaac presented Rebekah as his sister. Comparing Genesis 26 with similar stories about Abraham and Sarah (Genesis 12, 20), Isaac and Rebekah are in lesser danger than Isaac’s parents. This work takes three steps to argue that the story supports the national identity of displaced Israelites. First, …

Feasibility Of Deploying Home-Based Digital Technology, Environmental Sensors, And Web-Based Surveys For Assessing Behavioral Symptoms And Identifying Their Precipitants In Older Adults: Longitudinal, Observational Study., Wan-Tai M. Au-Yeung, Yan Liu, Remonda Hanna, Sarah Gothard, Nathaniel Rodrigues, Cierra Leon Guerrero, Zachary Beattie, Jeffrey Kaye

Mathematics and Statistics Faculty Publications and Presentations

Apathy, depression, and anxiety are prevalent neuropsychiatric symptoms experienced by older adults. Early detection, prevention, and intervention may improve outcomes.

Autism Risk Gene Cul3 Alters Neuronal Morphology Via Caspase-3 Activity In Mouse Hippocampal Neurons, Qiang-Qiang Xia, Anju Singh, Jing Wang, Zhong Xin Xuan, Jeffrey D. Singer, Craig M. Powell

Biology Faculty Publications and Presentations

Autism Spectrum Disorders (ASDs) are neurodevelopmental disorders (NDDs) in which children display differences in social interaction/communication and repetitive stereotyped behaviors along with variable associated features. Cul3, a gene linked to ASD, encodes CUL3 (CULLIN-3), a protein that serves as a key component of a ubiquitin ligase complex with unclear function in neurons. Cul3 homozygous deletion in mice is embryonic lethal; thus, we examine the role of Cul3 deletion in early synapse development and neuronal morphology in hippocampal primary neuronal cultures. Homozygous deletion of Cul3 significantly decreased dendritic complexity and dendritic length, as well as axon formation. Synaptic spine density significantly …

Permission To Play: A District's Initiative To Innovate Kindergarten And Promote Developmentally Appropriate Practices, Cristin Mcdonough

Dissertations and Theses

Kindergarten's original purpose was to promote socialization skills for young children using play. However, recent research has shown an increased focus on teaching literacy and math skills, combined with pronounced increases in more advanced academic tasks and activities. Given this shift in kindergarten, as well as a lack of professional development for teachers to assist them in promoting developmentally appropriate practices, the Kindergarten Innovation Cohort was created in the Portland School District to address these needs for both students and teachers. Using findings from interviews and field notes, the current study addresses the question: What does the implementation of the …

A Hierarchical Decision Model For Evaluating The Strategy Readiness Of Quantitative Machine Learning/Data Science-Driven Investment Strategies, Mohammadsaleh Saadatmand

Dissertations and Theses

Big data and computational technologies are increasingly important worldwide in asset and investment management. Many investment management firms are adopting these data science methods and technologies to improve performance across all investment processes. Researchers actively use these methods to develop more effective systematic investment strategies and produce more reliable outcomes less vulnerable to human decision-making biases. However, the success of such a strategy depends heavily on the scientific rigor applied throughout the process. "Best practices involve understanding how to make better decisions in the research design process. A good question is whether we can make better decisions in developing quantitative …

Mussar And Esotericism In Revolutionary Russia, Martin Zwick

Complex Systems Faculty Publications and Presentations

This paper is an introductory comparative look at teachings of two spiritual figures in pre-revolutionary and revolutionary Russia: Rav Yoseph Yozel (Horowitz) and George Gurdjieff. Yozel founded the Novarodok school of Mussar; Gurdjieff founded the spiritual tradition known as “the Work” or “Fourth Way.” There are of course great differences between the Jewish tradition of Mussar, whose literature dates back to the Mishnah but which as a social movement was launched by Rabbi Israel Salantar in the late 19^th century, and the Work, with its affinities to Eastern Christianity, Buddhism, and Sufism but with no apparent connection to Judaism. …

Faculty Senate Monthly Packet May 2024, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The May 6, 2024 monthly packet includes the May agenda, appendices, and the Faculty Senate minutes and attachments from the meeting held May 6, 2024.

Static Reflective Surfaces For Improved Terahertz Coverage, Thanh Le, Suresh Singh

Computer Science Faculty Publications and Presentations

LoS (Line of Sight) MIMO (Multiple Input Multiple Output) is considered the best way to deliver high capacity channels for terahertz communications due to the severe attenuation suffered by reflected components. Unfortunately, terahertz links are easily blocked by any obstruction resulting in link breakage. Therefore, it is necessary to provide alternative paths via reflectors. A problem shared by LoS paths and reflected paths (via polished reflectors) is that the channel matrix is rank 1 in the far-field. As a result, the achieved capacity is lower than what can theoretically be achieved in a rich multi-path environment. In this work, we …

Amelioration Of Age-Related Cognitive Decline And Anxiety In Mice By Centella Asiatica Extract Varies By Sex, Dose And Mode Of Administration, Nora E. Gray, Wyatt Hack, Mikah S. Brandes, Jonathan A. Zweig, Liping Yang, Luke Marney, Jaewoo Choi, Armando Alcazar Magana, Natasha Cerruti, Janis Mcferrin, Seiji Koike, Thuan Nguyen, Multiple Additional Authors

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: A water extract (CAW) of the Ayurvedic plant Centella asiatica administered in drinking water has been shown to improve cognitive deficits in mouse models of aging and neurodegenerative diseases. Here the effects of CAW administered in drinking water or the diet on cognition, measures of anxiety and depression-like behavior in healthy aged mice are compared.Methods: Three- and eighteen-month-old male and female C57BL6 mice were administered rodent AIN-93M diet containing CAW (0, 0.2, 0.5 or 1% w/w) to provide 0, 200 mg/kg/d, 500 mg/kg/d or 1,000 mg/kg/d CAW for a total of 5 weeks. An additional group of eighteen-month-old mice …

Faithful Coverage: The Irish Independent’S Catholic Transformation Of The Spanish Civil War, Willa M. Fahrbach

Young Historians Conference

In the summer of 1936, the Spanish Civil War erupted with a military coup d’etat against the current Republic, launching three years of chaos and casualty. Among the ranks of supporters for the imminent fascist regime were Fascist Italy, Nazi Germany, and shockingly, the majority of Ireland’s citizens. However, their support was not unprompted. The Irish Independent, a popular newspaper, flooded its pages with gory depictions of anti-clerical violence committed by the Spanish Republicans and steered their audience into the kind of righteous sensationalism that would later inspire an Irish Brigade to form on behalf of the fascist regime. …

Homecoming Or Homeless: An Exploration Of The Ethno-National Identities Of Japanese-Brazilian Dekasseguis, Malina Yuen

Young Historians Conference

The return migration of Japanese-Brazilians to Japan from 1990-2008 encapsulates a complex issue of nationality, ethnicity, and belonging between two different cultures who came to depend on each other. Beginning in 1990, Japan instituted a new migration policy that opened the door for second and third generation ethnically Japanese individuals who were living in foreign nations to receive temporary work visas. This allowed for a great amount of migration from Brazil of Brazilians with Japanese heritage. This population is especially significant due to the high level of Japanese immigrants to Brazil during the early 20th century, due to reasons such …

Immigrant Identity Formation, A Transnational Approach: Italian Americans In New York City, 1880-1930, Amelia J. Vena

Young Historians Conference

Of the Italian immigrants arriving in America during the Great Migration (1880-1924), few understood themselves as “Italians.” On paper, Italian unification took place in 1861, but the creation of Italy as a unit of politics was not the creation of Italians as a unit of nation. Even decades later, immigrants landing in New York City understood themselves in regional terms—as Calabrians, Sicilians, and Neapolitans. “Italian national identity” remained an idea confined to the imaginations of wealthy and educated Italian nationalists. In the years that followed the Great Migration, immigrants reshaped Italian-American identity as they grappled with American ideas of race …

One Ring To Rule Them All: Connecting Johann Herder's Romantic Nationalism & Richard Wagner's "The Ring", Eliana Scheele

Young Historians Conference

In the 18th and 19th centuries in Germany, a new craze was emerging, one that would forever change Germany. The ideas of Nationalism, popularized by Johann Gottfried Herder, revolutionized the way that Germans thought about their country. Through this new kind of "Romantic" Nationalism, an importance was placed on "volksongs," or folksongs and stories as a means to take pride in one’s culture. The massively popular opera epic "The Ring of Nibelung" was written by Richard Wagner over fifty years after Herder's death, but it holds the values that Herder developed in it. In many ways, the Opera is the …

Jewish Immigrants In Argentina: The Bund As A Transnational Connection, Naomi Hemstreet

Young Historians Conference

Between 1881 and 1948, thousands of Eastern European Jews immigrated to Argentina, escaping subjugation and seeking economic opportunities. These Jewish immigrants initially worked in the agricultural colonies of the Pampas before settling primarily in Buenos Aires, drawn to the benefits of living in a densely populated city. Jewish socialism abounded, connected with the Bund in Russia and Poland while still existing independently. This paper examines the organization Avangard, the first representation of Bundism in Argentina, and its economic and cultural aims, before exploring Bundist schools in Argentina. I also analyze the secular Jewish schooling movement in Poland in order to …

“The Tin Pan-Tithesis Of Melody”: A Socio-Musical History Of Eastern European Jews In New York 1880-1920, Jascha Stern

Young Historians Conference

Influxes of Eastern European Jewish people immigrating to the United States in the late 19th and early 20th centuries motivated by poor economic and social conditions in their home countries and the appeal of economic opportunity in the U.S. settled in New York City. This event and decades of its aftermath are reflected in American popular music of the era. Tin Pan Alley, consisting primarily of Jewish composers and songwriters, became a metonym for the popular music industry in the U.S. The lyrical and melodic content of songs that came out of this reflect the Jewish-American national duality and Black …

Political Movement Through Cultural Identity: Lessons From The Présence Africaine, Ramona Sapru Henderson

Young Historians Conference

The Présence Africaine journal was unlike any of the time. Founded in Paris in 1947, its mission centered the expression of African cultures that had been suppressed under French colonial rule. The writers did not share a race or nationality but were united by a shared purpose of creating literary discourse around the colonization of Africa and the struggles of the pan-African movement. The founder, Alioune Diop, was a Senegalese professor who promoted a unique approach to political change. He was aware of the stark cultural losses that the French colonization of Africa was causing and saw the colonial suppression …

Ceremonial Sexual Sacrifice To Commercial Prostitution: The History Of Prostitution And The Social, Economic, And Religious Progress That Revolved Around The Profession, Katelyn E. Crowell

Young Historians Conference

From its believed origin in Ancient Mesopotamia, prostitution has not only survived but is a profession that has continued to play a culturally defining role through the centuries. While its initial emergence was through an act of religious ritual and sacrifice, it transformed into a commercial profession. Prostitution, despite it becoming a representation of sexual deviance, not only persevered but thrived across vast regions, cultures, and time periods. The profession's social ‘taboo’ and the forbiddenness of being associated with the institution has carried forward through time and across varying societal constructs, the attempts to hide or extinguish prostitution has never …

Marcus Aurelius’ Meditations And Its Interpretation With Christian Contemporary Thought, Audrey Kelley-Henroid

Young Historians Conference

Often regarded as one of the key Stoic works, Marcus Aurelius’ Meditations is a demonstration of the importance of self-reflection and Stoic ideals. His life was one of war and turmoil that influenced his possibly autobiographical writings over the years during his time campaigning during the Marcomannic wars. Since his death, the manuscripts remaining have been altered and interpreted in various ways. I speculate that Meditations being framed in the Christian lens is one of the most significant ways it's relevant today as it demonstrates the way contemporary ideas are imprinted onto classical work. Translators and readers of Meditations such …