Digital Commons Network^™

Extreme Precipitation Climatology Of The Contiguous U.S., Amy M. Johnson

Student Research Symposium

Extreme precipitation can cause flooding, landslides, loss of life and assets. Across the Contiguous United States (CONUS), concurrent to global warming, many communities have experienced increases in the amount of rain falling during the most extreme precipitation events and climate models project further increases for most of the CONUS. There is a need to comprehensively study the extreme precipitation climatology across the CONUS to understand what is within the observed range of extreme precipitation and the weather that drives it. Modern Era Retrospective analysis for Research and Applications 2 (MERRA-2) atmospheric reanalysis data for the period of 1980-2023 is used …

Sex Toys In The City- The Sex Toy Market Vs. Profit, Culture And Education, Abigail M. Jobe

Student Research Symposium

Since the development of sex stores, the product appeal has been directed toward cisgender men and excluded other groups, creating an experience exclusive to the male gaze. With this, products sold at early sex stores often did not appeal to the female population and excluded queer and gender non-conforming individuals altogether. These original sex stores objectified the female body and many of these traditional stores still exist now. However, in the 1970s, feminists began to create sex stores directed toward women and they in turn became hubs for information as opposed to just sex stores where women could shop comfortably …

Youtube Video Essays As Critical Remixed Scholarship, Michelle L. Arendt

Student Research Symposium

YouTube videos have contributed primary and supplementary instructional materials to traditional classrooms since the 2010s (Sylvia & Moody, 2022). These internet-native materials are more successful than their traditional counterparts due to their recontextualization which melds dissemination with the semiotic landscape of web 2.0 culture.

Preferential treatment towards long-form, research-based content has facilitated the development of the YouTube video essay format: a grassroots practice that unapologetically embeds identity, pop culture, and humor with rigorous scholarly praxis and remediation of major elements of academic discourse (Davis, 2022). Videos of this type regularly reach “audiences which may rival or dwarf the enrollment of …

Beavers Beyond Boundaries: Perceptions Of Beaver-Related Restoration, Matthew V. Guziejka

Student Research Symposium

The study "Beavers Beyond Boundaries: Perceptions of Beaver-Related Restoration" conducted by Matt Guziejka and Heejun Chang from the WISE Lab, Department of Geography at Portland State University, delves into the social, cultural, and environmental dimensions of Beaver-Related Restoration (BRR) within the urban setting of the Tualatin River watershed. Utilizing a voluntary survey with 187 participants across three urban watershed sites, the research aimed to analyze community perceptions concerning beavers and their impact on the environment, particularly in relation to their proximity to watercourses. Findings indicate that proximity significantly affects attitudes towards beavers, with those living closer to watercourses demonstrating more …

Beyond Craigslist Personal Ads: Contemporary Usage Of The Label T4t, Madi Lou Alexander

Student Research Symposium

Trans for trans relationships (t4t) are a special type of connection specific to transgender individuals, whether in the process of [re]affirming one’s gender identity and/or finding and building community. Originating from Craigslist personal ads, t4t indicates a trans person seeking out another trans person. What are these t4t relationships like for the trans people involved in them? With this research, I hope to evaluate and define the range of what t4t relationships are, hypothesize how t4t relations foster a sense of connection for the transgender individuals in said relationships, and explain why community amongst those who identify as transgender is …

The Effect Of Metabolic Modulators On The Rate Of Steady State Water Exchange In S. Cerevisiae Grown In Chemostat Bioreactors, Samantha Mumford, Mark Woods, Johnathan Dutra

Student Research Symposium

Water transport across the lipid bilayer due to osmotic stress causes a change in intracellular volume over time. At isotonic equilibrium there is no change in cell volume and yet water exchange does not stop. Water molecules continue to exchange rapidly with those of the extracellular space. The rate constant for steady state water efflux (k_io) can be measured using contrast enhanced magnetic resonance (MR) and the two-site exchange (2SX) model. k_io is known to correlate with the cellular energy molecule ATP making it a probable biomarker for metabolic diseases such as cancer. Measurements of k …

Work And Psychological Recovery Experiences Of Asian American And Pacific Island Workers In Higher Education, Christine M. Beceril

Student Research Symposium

Individuals from Asian, Asian American, and Pacific Islander (AAPI) backgrounds constitute the largest and fastest-growing minority group in the U.S. job market - comprising 6.7% of the U.S. population and expected to reach 15% by 2065 (United States Census Bureau, 2022). Despite their rapid growth, there has been a scarcity of literature in industrial-organizational psychology, with limited research on how AAPI workers engage in psychological recovery after work. This is a critical, yet unexplored area as previous research on psychological recovery from work has been investigated with homogenous White samples. Additionally, AAPI workers play integral roles in the U.S. higher …

Online Or In-Person: What Mode Of Conversation Makes People Feel The Most Socially Connected?, Nathan P. Gheorghita, Cynthia D. Mohr, Maryann Samson, Sheila Mccabe, Julia Lynch

Student Research Symposium

Since the onset of the COVID-19 pandemic, people have been spending significantly more time online. Today, people spend an average of 6 hours and 58 minutes online every day, and much of this time is spent socializing via various platforms. Many studies have examined the benefits and risks of socializing online, but few studies have examined online conversations specifically. In this study I aim to uncover the differences in perceived social connection based on the medium of conversation. To do this, I will administer the Connectedness During Conversations Scale (CDCS) to a sample of Portland State University students (N=80). The …

Trends Of Groundwater Levels Over Time, Parvaneh Z. Karch-Agnew

Student Research Symposium

Groundwater is water absorbed by the soil and earth beneath the surface, saturating it, and the groundwater level is the level at which the saturation zone ends near the surface. Despite groundwater’s critical importance, only a few studies have compared groundwater level changes from in-situ measurements made in different aquifers on diverse continents. Here, I analyzed groundwater level time series to characterize how groundwater levels have changed over time in different places. I used Python and Jupyter Notebook along with the pandas and matplotlib modules to graph groundwater level changes over time. The data analyzed here derive from a Hydroshare …

Exploring Attrition And Linguistic Shifts: The Impact Of Covid-19 And Anti-Asian Discrimination On The East And Southeast Asian Diaspora, Sam Mutschler-Aldine, Amy Wan-Ling Lin, Natalie Robison, Milntra Raksachat, Carolyn Quam

Student Research Symposium

This study investigates language and identity among speakers of East Asian and Southeast Asian languages in the United States, within the context of the COVID-19 pandemic and the concurrent rise in anti-Asian hate. We adopt a mixed-methods approach guided by three research questions exploring: (1) changes in language use since pandemic onset, (2) changes in perspectives on language identity since pandemic onset, and (3) effects of geopolitical climate, specifically the rise in anti-Asian hate, on language use and perspectives on language identity. Qualitative methodologies allowed us to capture a diverse range of language experiences. Many (but not all) participants indicated …

Method Validation Of Metals In Environmental Soil Samples, Sofia Deangelis, Nana Nguyen

Student Research Symposium

Vehicles are a major source of metal accumulation in terrestrial environments. Green infrastructure, such as bioswales, has been implemented as a way to mitigate this damage. However, there is a limited understanding of the processes that occur in these bioswales as few go back after implementation to identify areas in the bioswale with accumulation of pollutants. Inductively coupled mass spectrometry (ICP-MS) has the potential to be used in this type of study due to the machine’s high sensitivity and selectivity. However complications can arise while using the ICP-MS to characterize complex environmental samples. This study seeks to optimize microwave assisted …

Talking About Weight: Weight Stigma And Information Seeking, Alexandra N. Henrici, Lillian H. Mantel

Student Research Symposium

Guided by the Risk Information Seeking and Processing (RISP) model, this study explores the relationship between fear of discussing weight-related topics, or weight-related communication apprehension and weight bias internalization and tests the inconsistent RISP relationship between risk perception and information insufficiency. It investigates differences in weight-related communication apprehension in those who previously sought weight-related information from interpersonal or mediated sources. Using a survey of 64 undergraduate communication students, the study found that high levels of weight bias internalization correlated with high levels of weight-related communication apprehension. The study did not find a significant difference in weight-related communication apprehension based on …

Going Down An Incline With Chatgpt, Corey R. Sissons

Student Research Symposium

In our Large Language Model (LLM) research, examining ChatGPT 4, we devised a physics problem involving an object descending an inclined plane. Through variations in terminology such as "rolling," "sliding," "solid sphere," "hollow sphere," "wooden ramp," "no-slip ramp," and more, we sought to evaluate LLM responses for different scenarios. Our analysis aimed to discern whether the LLM’s answers exhibited expertise in the field of physics. This experiment sheds light on LLM’s ability to give accurate and precise physics answers as well as variation in responses to nuanced changes in problem formulation. This provides valuable insights into its proficiency and potential …

Competing Supramolecular Forces: Boron Coordination Vs Π-Π Stacking, Sidhaesh A. Agarwal, Gonzalo Campillo-Alvarado, Nicholas Lutz, Jesus Daniel Loya, Eric W. Reinheimer

Student Research Symposium

This study explores the impact of fluorination levels in azopyridine Lewis bases on their ability to direct the formation of B←N coordination adducts or cocrystals with phenylboronic ester. We hypothesize that the degree of fluorination can be used as a tool to control the outcome of supramolecular bonding competition, thus influencing complex self-assembly.

A series of azopyridines with varying degrees of fluorination were synthesized and reacted with phenylboronic ester. Their structures were analyzed using Hartree-Fock calculations, Hirshfeld surface analyses, and single crystal X-ray diffraction to assess the impact of fluorination on supramolecular interactions.

The study reveals that azopyridines with up …

Dragon Pseudoscorpions Shed Light On Ancient Climate History In The Pacific Northwest, Joshua W. Hootman

Student Research Symposium

Pseudoscorpions are an ancient and diverse group of understudied arachnids, and there is much to be learned about their relationships to each other. Pseudoscorpions are one of many leaf-litter dwelling and low dispersing invertebrates that inhabit the forests of the Pacific Northwest. Previous phylogeographic studies of Pacific Northwest taxa have shed light on some of the climatic and geologic events that have shaped the area's flora and fauna. One purpose of this study is to determine if there is similar genetic structuring within the pseudoscorpion populations present in the study area, or if there is even more structure likely influenced …

Gangism: An 'Elementary Form Of Religious Life', Robert Northman

Student Research Symposium

This study is intended to examine the question: could gangs be a form of religion? The study will examine Steven Cureton's ethnographic case study of a street gang as found in his work titled Hoover Crips (2008), where I will then analyze the findings within the sociological framework of Emile Durkheim’s theory of religion as set forth in his classic book titled Elementary Forms of Religious Life (1912).

This exploration faces challenges as the terms “gang” and “religion” are both hotly contested, and discussions on each have largely occurred independently, leaving a significant gap for this research to address. This …

My Father's Story: An Ethnography About Language Loss, Ariel Wilsey-Gopp

Student Research Symposium

War disrupts everything, including a child’s developing language and cultural identity. My father grew up in both Serbia and Germany during the post-WWII political upheaval. By the time he was an adult, he knew five languages, yet lacked his own language and languaculture (Agar, 1994).

It benefits us to understand more completely the effects of language loss as political borders continue to shift and human migration increases. Research in social sciences, psychology, and biology all examine the effects of trauma, the brain, and child development. Applied linguistics examines language loss in relation to Second Language Acquisition (Altarriba & Heredia, …

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 …

“Fruit From A Poisonous Tree”? Constituting Logics Of Law Enforcement Phlebotomy, Anne Johnson

Student Research Symposium

In at least 17 states in the United States, police are drawing blood from drivers they suspect of impairment. Despite concerns about civil rights, ethics of consent in custody, and use of force, law enforcement phlebotomy (LEP) remains critically understudied. Through 27 in-depth, semi-structured interviews with police phlebotomists and LEP program officials from 10 states, this study begins to fill that gap, asking: What are the logics of law enforcement phlebotomy? Constituting these logics–as articulated by police–are beliefs about both policing and phlebotomy, and officers’ motivations in the fight against impaired driving. This article assesses how the logics of law …

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 …

Queer Rural Youth Online: A Digital Ethnography, Joseph R. Burns

Student Research Symposium

This presentation is based on digital ethnographic fieldwork conducted in 2023 within Queer subcommunities on the social media sites Reddit and Twitter (now known as X) and data collected from interviews with Queer rural youth members of these communities. The data reveal that social media use directly influences the lives and actions of Queer rural youth, who use the space to build social connections, shape their personal identities, and seek advice pertaining to their in-person lives and decisions. By using these spaces, Queer rural youth build both bonding and bridging social capital, learn to subvert restrictions to their Internet access, …

Photocathodes From Aerobic Oxidation Of Tellurorhodamines, Amelia Jellison

Student Research Symposium

Contemporary dye-sensitized solar cells are far less efficient than silicon solar panels, therefore this project seeks to develop an improved dye sensitized photocathode. Tellurorhodamine dyes, including mesityl derivatives and tellurium black, have been chosen to increase efficiency through increased light harvesting. The photophysical and electrochemical properties of tellurorhodamines with varying structures are analyzed to quantify its efficiency to serve as a dye sensitized photo cathode. Dyes undergo aerobic oxidation facilitated by light, the absorption profile is obtained before and after. Mesityl derivatives are known to experience significant red-shifting following aerobic oxidation. At its base oxidation state, tellurium black experiences an …

Say It With Flowers: The Semiotics Of A Not-So Secret Language, Cecilia Januszewski

Student Research Symposium

The Victorian flower language Is mythologized as a widely known communicatory practice Involving flowers with symbolic meanings and creative bouquet-making In order to convey personal and emotional messages. This Is not entirely accurate: floriography was a theoretical floral code based on the Turkish practice of selam, which the British and French upper class reinterpreted and edited to create their own version. This thesis examines how floriography functions semiotically, both as a mythologized language and as It was actually used, and traces the lineage of floral semiotics and greeting cards from Victorian Britain to contemporary America. I analyze floral semiotics, both …

Exploring The Potential Of Α-Aryl Substitution Of Gddota To Address Challenges Associated With Mri Contrast Agents., Charlene I. Kupara

Student Research Symposium

Gadolinium chelates have found widespread application as contrast agents in Magnetic Resonance Imaging (MRI) a cornerstone in modern medical diagnostics. In recent years two significant challenges have emerged to the use of Gd³⁺ chelates in MRI:

• The safety of these Gd³⁺-based agents, specifically related to the possible in vivo release of Gd³⁺.
• The environmental impact of anthropogenic Gd³⁺ pollution of surface waters arising from using contrast agents.

The escalating reports of Gd³⁺ presence in environmental matrices, and its adverse effects on marine life and human health, necessitate urgent intervention to mitigate consequential environmental …

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, …

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.

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 …

Marshlands And Monasteries: The Impact Of Weapon Deposition On Medieval British Christianity, Maia Lippay

Young Historians Conference

This paper, using proven archeological evidence, time-specific literature, and references on monastic life, local tradition, and social concepts of mythology, draws a clear connection between the prevalent European Iron Age practice of ritual votive and weapon deposition into bodies of water and the state of Christianity in middle ages Great Britain. The ceremonial county of Lincolnshire, particularly the Witham Valley, is featured heavily for its high concentration of deposition and monastic sites in a verifiably close distance of each other. The paper explores the possibility that the existence of these pre-Christian ritual sites remained relevant throughout the Roman period through …

Cascading Crises: Climate Change And K-12 Education, Matt Ridenour

Northwest Journal of Teacher Education

In this special issue of the Northwest Journal of Teacher Education, Richard Sawyer and I (the co-editors) examine a few of these consequences of climate change on the field of education. Specifically, we focus on teacher educators’ discussion of their work with their preservice students to understand and make a positive impact on climate justice education. All of the articles in this special issue take a realistic yet guardedly hopeful stance to the possibilities for climate justice.