Digital Commons Network^™

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 …

Fireflies At Rpa Natural Area Final Report, Olivia H. Bush, Sydney M. Shea, Sofia J. Gordon, Nick S. Wiebke

Final Reports in ENST 411: Environmental Community Projects

Our group worked alongside community partners Shaunna Barnhart and Jim Dunn during the Spring 2024 semester to assist with their annual event Fireflies at RPA Natural Area. RPA Natural Area is a local park in South Williamsport, Pennsylvania that was recently acquired by Southside Recreational Authority. Since taking over the park, the organization has begun hosting an event each July to educate the general public about firefly biology and conservation by showing a film and guiding attendees through a firefly tour through the park. Our goals for this project included creating physical educational materials to be used at the park …

Revitalizing New York City Food Deserts: On Addressing, Examining, And Solving Food Insecurity In New York City, Eleanor Ann Rodde

Student Theses 2015-Present

This paper aims to expose the food deserts of New York City and present ways that the government and non-governmental organizations can combat food insecurity in the urban environment. Food deserts are the product of insufficient access, availability, utilization, and stability of food in a particular area due to environmental racism. Food insecurity in New York City will rise with the increased impacts of climate change on our agricultural system. To that end, disadvantaged neighborhoods will bear the burden of environmental costs. The first chapter of this paper considers the failing agricultural system to prove that massive reform to protect …

Crossing The Ocean: The Importance Of Gene Flow In Island Evolution, Ethan F. Gyllenhaal

Biology ETDs

Islands have long been a critical arena for the development of ecological and evolutionary theory, particular due to persistent open-water gaps between them. In this dissertation I demonstrates how these caps are permeable, which can be leveraged to understand evolution on islands and more broadly. The first chapter develops this connection between ongoing, overwater gene flow and island biogeographic theory, and tests it on an archipelago species. The second take a three-pronged approach in demonstrating how over-water gene flow can bias phylogenetic inference, and how many phylogeographic metrics in islands are likely shaped by long-term gene flow. The final two …

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, …

Relationships Among Homo Erectus Paleodemes Across Time And Space, Rachel Kuzma

Arts & Sciences Graduate Student Theses and Dissertations

Prior research has shown that morphological distances between modern human populations calculated using the temporal, parietal, and frontal bones are significantly correlated with genetic distances, presumably due to genetic drift. An implication is that temporal, parietal, and frontal morphology may provide insights about population history and relationships in fossil hominins. This research tests the hypothesis that morphological distances between paleodemes of Homo erectus are correlated with geographic and/or temporal distances under the assumption that the latter are proxies for genetic distance. Following this, the implications of morphological distances among H. erectus paleodemes are assessed. Morphological distance matrices were computed for …

Microbial Community Composition And Assembly In Diverse Environmental Systems, Rhiannon Celeste Vargas

Arts & Sciences Graduate Student Theses and Dissertations

Analyzing microbial community responses across systems, particularly in coordinated ways, is critical to informing meaningful community ecology patterns. In Chapter 1, I provide historical contexts to the field of microbial community ecology. In Chapter 2 I have investigated a specific opportunistic pathogen, Staphyloccocus pseudintermedius, by utilizing whole genome sequencing to understand the genomic architecture that contributes to the community structures of S. pseudintermedius found in different environmental niches. We found that unlike other Staphylococcal pathogens, S. pseudintermedius niches are indistinguishable by core and accessory gene architecture. Rather, niches are resolved through the encoding of antimicrobial resistances such as those isolates …

Beyond The Iudex Threshold: Human Oversight As The Conscience Of Machine Learning, E. Jason Albert, Jessica E. Brown

Colorado Technology Law Journal

No abstract provided.

The North Central Extension Risk Management Education Center, Part I: Helps Producers Manage Risks, Christine Lockert, Sheila Aikanathan Johnson, Bradley D. Lubben

Cornhusker Economics

Established in 2001, the North Central Extension Risk Management Education Center (NCERMEC) has a long history of supporting risk management education programs serving producers in the region. Located at the University of Nebraska-Lincoln Agricultural Economics Department, the Center is one of four regional Extension Risk Management Education (ERME) Centers located throughout the country. ERME is funded through USDA’s National Institute of Food and Agriculture (NIFA) and was authorized by the Agricultural Risk Protection Act of 2000. The fundamental purpose of the ERME program is to educate producers to manage risk and position their farm or ranch for future growth and …

Accounting Chronicles: Real-World Case Studies, Hannah Coyle

Honors Theses

This thesis compiles case studies exploring accounting principles that intersect with real-world events, from historical incidents to financial crises and contemporary issues. Each study highlights accounting’s significance across diverse economic sectors, emphasizing accounting’s pervasive influence on influential figures, economic trends, and regulatory authorities. Utilizing a multidisciplinary approach including documentaries, articles, financial reports, and academic courses, the research reveals the intricate relationship between accounting practices and global events. Findings underscore the profound impact of economic trends on the accounting profession, showcasing the underlying motivations driving these occurrences and its adaptability to changing global landscapes. Overall, this thesis provides insight into accounting’s …

Counting The Possibilities: New Numerals And New Opportunities, Ryan Fox

Faculty Scholarship Symposium

To support the teaching of a class, I investigated the Kaktovik or Inupiaq number system. What started as an exploration to enhance an education class activity turned into a fascinating addition to my research agenda. The proposed presentation will summarize already accepted work and look forward to new possibilities. My first scholarly work with these numbers had education majors connect their own understanding of mathematics to the addition and subtraction in the number system, challenging the students’ approaches to teaching elementary school children familiar algorithms. In another work, I presented approaches to multiplying these new numbers to local mathematics teachers. …

Isolation Without Despair: Hollow Knight In A Post-Pandemic Landscape, Anthony Raduazzo, Ashley Lear

Discovery Day - Daytona Beach

Hollow Knight, a 2017 metroidvania game, is set in the fictional world of Hallownest, a ruined kingdom that was ravaged by an infection many years ago. Throughout the game, the player traverses the destroyed remnants of the kingdom and battles the infected citizens that used to live there. While initially a very isolating experience, by engaging with the environments and sparsely placed characters, the player can learn more about the history of the kingdom, rekindle abandoned communities and eventually gain the skills necessary to fight and defeat the source of the infection itself. Through its environmental design, compelling character writing …

Inside The Bermuda Triangle, Shan Martinez

Lorgnette: Quarterly Review of Children's and Young Adults' Books

No abstract provided.

Democratic Education As Expressed In Practice: An Integrative Literature Review, Rachel L. Wadham, Lynnette Christensen, Heather Leary

Journal of Educational Research and Practice

Despite a strong theoretical foundation, teachers’ pedagogical practices that represent the principles of democratic educational theory are not holistically understood. This qualitative integrative literature review provides a more complete view of the practices used by those who define themselves as democratic educators. By analyzing and integrating existing literature on classroom practice this review discusses four pedagogical approaches that engage democratic educational practices including inquiry, artistic, oral, and student-centered methods.