Digital Commons Network^™

Thermal Design And Control Of A Pcb-Based Solid-State Gas Generator (Ssgg) Heater For Space Applications, Chandler Dye

Graduate Theses and Dissertations

This thesis presents the development and experimental validation of a compact, solid-state gas generator (SSGG) heater integrated into a printed circuit board (PCB) for use in satellite deorbiting systems. Designed for CubeSat-class spacecraft, the system produces gas via the thermal decomposition of sodium azide (NaN₃). The project emphasizes minimal mass, low power consumption, and mechanical simplicity – key constraints for modern space missions. The heater system relies on Joule heating through patterned copper coils embedded within the PCB structure. NaN₃ is deposited into wells drilled into the board surface, where localized heating initiates its decomposition near 300°C. A range of …

An Analytical Evaluation Of Economic Geography Within Maine And Its Resource Industries: 1600 To Present, Maureen Mantooth

Graduate Theses and Dissertations

Resource peripheries represent a fringe area within economic geography, originating from the core-periphery theory developed by Friedmann and Miller. This concept has evolved to address global and regional contexts, referring to marginalized regions that rely heavily on the extraction and export of natural resources. By studying these regions, we gain a deeper understanding of critical components in global economic systems. This dissertation focuses on Maine as a case study of a resource periphery, using the framework proposed by Hayter et al. (2003) within the broader regional contexts of New England and the United States. Key factors explored include resource exploitation, …

Trouble Don't Last Always, Carletta Williams

Graduate Theses and Dissertations

Being born and raised in the South, it has become clear to me that acts of adornment and cultural representations of home are a prevalent factor of the Southern archive. Trouble don’t last always considers the various elements of coloniality that saturate function within the Southern Black home, noting that acts of adornment and cultural representations of home are a prevalent factor of the Southern archive. Enumerating the various roles that Black women play as place makers while also navigating elements of coloniality. In turn these spaces do not function without their knowledge production. This knowledge is one that becomes …

Laughing Tiger, Michael Shum

Graduate Theses and Dissertations

Laughing Tiger is the title of my thesis exhibition/paper, as well as the middle name I was gifted with. The relationship I have with this name has changed throughout my life. At one point, this name was more a reminder of being different, but now it is a personal symbol I take pride in. My name is Michael Laughing Tiger Shum, and I make inventive autobiographical paintings about the relationships we invest in, whether it’s with others, objects, rituals, environments, and so on. I have broken down my painting practice into three main themes, which are actions, experiences, and thoughts. …

Mandatory Bliss, Jocelyn Reid

Graduate Theses and Dissertations

Mandatory Bliss is an exhibition of sculptural objects that discuss value, feminism, material hierarchy, and societal expectation. Using mundane structures and objects, this installation aims to frustrate and dissect the significance of the tangible items that we interact with every day.

Mindful Symbiotic Ecosystems. Designing For Women In Remote Workspaces, Andrea Guevara Araujo

Graduate Theses and Dissertations

Women represent 61% of designers in the workforce but hold only 29% of leadership roles. This disparity highlights a critical need for an ecosystem that removes barriers and cultivates mentorship, community, and leadership among women (Bolt, 2020). Even though women have proven their ability to succeed in male-dominated corporate cultures, the real question is not about capability but sustainability. Driven by overwork, competition, and burnout, the workplace does not just push women out; it leads to long-term instability for the entire organization (Krivkovich et al., 2024). In the workplace, a culture of masculinity reinforces harmful, outdated mindsets and glorifies aggressive, …

Designing For Autonomy: Enhancing The Autonomy Of Young Women With Postural Orthostatic Tachycardia Syndrome (Pots) Through Interactive Narrative, Jessica Gobble

Graduate Theses and Dissertations

Postural Orthostatic Tachycardia Syndrome (POTS) is an autonomic nervous system disorder with multisystem impacts. Classified as a chronic illness and oftentimes triggered by viral infections, incidents of POTS have become increasingly common following the outbreak of COVID-19. Primarily affecting young women ages 18 to 30, POTS disrupts an individual's health during their transition to adulthood. This issue is further complicated by medical gender bias, latent care, and misdiagnosis, which leave this demographic vulnerable within traditional healthcare systems (Shaw et al., 2019). As traditional healthcare systems primarily address acute rather than chronic conditions, interactions with these systems are intermittent. Consequently, individuals …

Public Comment: Using Critique-Like Mediating Artifacts To Democratize Discourse At City Council Meetings, Piper Schuerman

Graduate Theses and Dissertations

Are local governments designed for equitable citizen participation? While civic engagement aims to empower citizens and support representative governance, barriers to participation can hinder those outcomes. City council meetings, key venues for public input, pose specific challenges such as long durations, dense content, and intimidating formalities. These issues disproportionately affect Generation Z (born between 1997 and 2012), who frequently report feeling underinformed or having limited time to engage. This thesis explores how city council meetings might use multimodal mediating artifacts, inspired by design critique practices, to make public discourse more accessible for Gen Z adults.

Grounded in activity theory and …

Development And Investigation Of A Novel Near-Wall Methodology For Large-Eddy Simulation Based On Dynamic Hybrid Rans-Les, Michael Tullis

Graduate Theses and Dissertations

The use of computational fluid dynamics (CFD) to test engineering designs with reduced cost and time compared to physical testing has become increasingly common in a range of industries and research fields. While numerical methods exist that can accurately solve the equations that govern the flow of fluids, these methods are computationally expensive for practical engineering problems due to the large amount of computational power needed to resolve the fluid flow over the entire range of length and time scales. Several different approaches have been introduced to address this computational cost issue, namely Reynolds-averaged Navier-Stokes (RANS) modeling and scale resolving …

A Living House Never Stands Still, Holly Rose Kranker

Graduate Theses and Dissertations

A Living House Never Stands Still is an exhibition that explores the interplay between place, memory, and the suspension of time through diverse mediums and materials. I engage with seemingly mundane objects, interpreting them through a non-linear, dream-like, and irrational framework to unearth latent connections across time–past, present, and future. Central to these explorations is the concept of home—not merely as a physical location, but as an evolving entity. Home is a sacred space for me.

My recent studio reflections are focused on the lifecycle of objects, the emotional responses they evoke, and how these cycles emulate the human body …

Big Blue, Caitlin Mae Ramos

Graduate Theses and Dissertations

Big Blue is a record keeping system of sorts- to show the story of my relationship with the tallgrass Big Bluestem as an Oglala Lakota tribal citizen of The Sioux Nation. It’s meant to question the idea of binaries, what is valued, how verticality is only powerful if supported horizontally, and the legacy of the remnants that remain. Big Bluestem is a reminder of our linked survival as humans with the land and the importance of knowing the individual names of the leafy and legged beings who exist equally on it.

Adult Effects And Affects: Dialogic Reflections And Theoretical Analysis Of Systemic Led Education, Early Childhood Education, And Art Education, Katherine Galaz

Graduate Theses and Dissertations

Through self-exploration, reflexive dialogue, and literature review I look to the grey areas, contradictions, and margins of hegemonic educational practices. I highlight the ways in which the standard of education is structured in opposition to how children seek to understand and make sense of the world. In my analysis of early childhood settings and art education under the umbrella of the U.S. education system, I approach historical antecedents involving colonialism and systemic injustice. Within the field of art education, I specifically look at the artistic and imaginative ways that children resist societal norms in early childhood education. As such, I …

An Analysis Of Cellular And Tissue Function Of Lipin In Drosophila Melanogaster, Judah Christian Scott

Graduate Theses and Dissertations

Regulation of energy expenditure and energy storage is a key characteristic of life. Numerous enzymes play a crucial role in regulating energy metabolism. Lipins are a highly conserved family of proteins that function in both lipid synthesis and gene regulation. In the glycerol-3 phosphate pathway, lipins act as a phosphatidate phosphatase (PAP) producing diacylglycerol. In gene regulation, lipins act as transcriptional co-regulators of metabolic genes. The enzymatic PAP activity occurs in the cytoplasm; however, for lipins to function as gene regulators, they must translocate into the nucleus. Nuclear translocation is facilitated by the nuclear localization signal (NLS) within the protein. …

Latent Variable Dyadic Regression Models For Predicting Over/Under Bets In Sports Betting, Alexcia Trejo

Graduate Theses and Dissertations

This thesis explores the use of latent factor models to uncover hidden structures in pair wise outcomes derived from Over/Under betting markets in sports betting. Specifically, we implement and evaluate the Eigen model, a latent space model that represents dyadic data using node-specific vectors whose inner product govern edge probabilities. By modeling relationships between teams as adjacency matrices of binary outcomes, we investigate the extent to which the Eigen model captures both homophily, the tendency of similar teams to yield consistent betting results, and stochastic equivalence, where different teams exhibit indistinguishable patterns of Over/Under outcomes. A Bayesian formulation of the …

#Girls Gone Viral: Girlification Trends And The Digital Postfeminist Sensibility, Madison Rose Mcbride

Graduate Theses and Dissertations

This thesis provides a critical analysis of viral girlification trends on TikTok to bolster understanding of the rhetoric of popular feminism in the emerging digital landscape. Grounded in feminist cultural theory, this thesis posits that women’s digital engagement influences their notions of self-actualization, their avenues for resisting sexist ideals, and ultimately, their political mobilization. Extending scholarship on postfeminism, I offer two unique but co-constructive features of the postfeminist sensibility: post-irony and the confession paradigm. The first chapter analyzes the “girl dinner” trend as a site of post-ironic discourse. Characterized by ambiguity and ambivalence, post-ironic discourse muddles the line between sincerity …

Exploration Of Polymorphic Gate-Based Watermarking In Asynchronous Circuits, Stephanie Stock

Graduate Theses and Dissertations

With the increasing demand for new state-of-the-art integrated circuits (ICs), intellectual property (IP) reuse has become more commonplace to both accelerate the design process and lessen the non-recurring engineering costs of a design. Reuseable IP poses significant security risks, not only to the creator of the IP, but also to the consumer purchasing the IP. For an IP vendor, this risk can come from illegal distribution, cloning, or overuse. For the purchaser, counterfeit IPs may be purchased from an unvetted vendor, leading to a substandard design, malfunctions, IP infringement, or security vulnerabilities. Hardware watermarking is a method to protect designers …

Rewriting The School Calendar: A Mixed-Methods Analysis Of Four-Day School Week Implementation In Arkansas, Kate Barnes

Graduate Theses and Dissertations

The four-day school week (4DSW) has gained traction across the United States, particularly in rural districts seeking innovative responses to mounting challenges. Despite its expanding adoption, key questions remain regarding the motivations for implementing 4DSW schedules and their implications for teacher well-being and student achievement. This dissertation examines the emergence and effects of the 4DSW in Arkansas, where adoption has increased rapidly in recent years, offering a unique context shaped by state-level policy and rural dynamics. Employing a mixed-methods, this dissertation investigates (1) why and how districts adopt the 4DSW, (2) whether the policy alleviates teacher burnout, and (3) how …

A Wicked Game, Andrew Nikonowicz

Graduate Theses and Dissertations

A Wicked Gameis an installation comprised of a video game in an arcade cabinet, photographs, sound, and sculpture. The installation explores the complexity of play and personal memory. Working from the concept of “wicked” (Epstein) learning environments – domains with hidden rules, unstable structures, and inconsistent feedback – the project constructs a playable space, where players must navigate an inhospitable environment, echoing the experience of living in a world that resists accommodation.

The installation centers around an all-black arcade cabinet placed in a darkened gallery space, inviting visitors to play A Wicked Game. The game demands the player …

Nonparametric Methods For Bayesian Community Detection In Complex Networks, Kedran Young

Graduate Theses and Dissertations

Network analysis is becoming an increasingly popular interdisciplinary area of study, with emerging interest in fields like sociology, biology, economics, and ecology. Within the niche of network analysis, capturing the community structure of a network is one important achievement that many statisticians have been working toward over recent decades. The most popular modeling technique for latent community detection is the Stochastic Block Model (SBM), which falls into the category of latent variable models and will serve as the baseline model throughout this thesis. SBM is widely regarded as the most effective community detection method as it detects latent community membership …

Bang!: Real-Time Measurements And Transcriptomics Of Metabolic Reprogramming In Activated Macrophages At Fever Temperature, Kenneth Howard Taylor

Graduate Theses and Dissertations

We investigated the real-time metabolic rates of activated macrophage cell lines derived from mouse, chicken and rainbow trout. Each species showed a different kinetic signature with metabolic rates accelerating under fever conditions specific to each organism. Upon activation mouse macrophages increased their rate of glycolysis early and then a later reprogramming phase occurred with a dramatic decrease in oxidative phosphorylation (OXPHOS) accompanied by a reciprocal second increase in glycolytic rates. Chicken macrophages showed an initial increase in both glycolytic and OXPHOS rates. The late drop OXPHOS rates also occurred in chicken however there was no reprogramming that occurred as glycolytic …

Influence Of Smartphone Notifications On Behavior And Eye Movement Parameters Of Emotional Attention, Joshua Daniel Upshaw

Graduate Theses and Dissertations

This study examined how smartphone notifications interact with emotional facial expressions to influence behavioral and physiological eye movement parameters of attentional orientation. Using a dot-probe paradigm, participants viewed mixed emotional face pairs (angry, happy, or neutral) following an auditory stimulus (smartphone notifications, control tones, or silence). Angry faces elicited greater behavioral accuracy and delayed initial fixations, consistent with heightened threat-related attentional engagement. Notifications disrupted attentional stability, reflected in increased fixations and pupil size variability. The combined effect of smartphone notifications preceding angry faces intensified attentional modulation—evidenced by slower responses, increased blinking, greater pupil constriction, less pupil variability, and faster initial …

Literary Postcritique And American Transcendentalism: Helping Students Practice Community-Building By Rewilding Literature In The Classroom, Tate Aldrich

Graduate Theses and Dissertations

Literary postcritique is an emergent theoretical approach to literature that has elicited skepticism among many in academia because of its central claim that their unchecked overreliance on suspicious and symptomatic reading styles is diminishing the pedagogical potential of our reading together. To restore this potential, Rita Felski, a champion of literary postcritique, suggests adopting an aesthetic reading style, a mid-level interpretation that neither indulges in the formalists’ habits of close scrutiny nor in the cultural critics’ wider lens of political and social contexts. In The Limits of Critique and Hooked, Felski argues that an aesthetic reading style can develop …

Victims Of Stage And Screen: Parasocial Savior Rhetoric And Coded Social Critique At The Convergence Of Celebrity & Conspiracy Cultures, Amy Whiteside

Graduate Theses and Dissertations

This thesis offers a critical rhetorical analysis of what I term parasocial savior conspiracy theories , a unique genre of conspiracy narrative that portrays a public figure as victimized and allows their fans to step into a savior role through their advancement of the conspiracy theory. These narratives, I argue, are both catalyzed by and further insulative to a fan’s parasocial relationship with the public figure in question. Herein, the celebrity acts as a vessel of projection for their fans’ anxieties about control, allowing them to displace their agency panic onto a beloved external party and critique factors that seem …

Comparison Of Rt-Qpcr And Rt-Ddpcr On Assessing Model Virus In Wastewater, Wafa Youssfi

Graduate Theses and Dissertations

There is an increasing demand for quantifying viral loads in diverse wastewater systems using polymerase chain reaction (PCR). This study evaluates the performance of two commonly used workflows: reverse transcription quantitative PCR (RT-qPCR) and reverse transcription droplet digital PCR (RT-ddPCR) in wastewater. We compared the two methods by measuring the viral ribonucleic acid (RNA) of a model virus Phi6 in samples collected from various treatment stages at the Westside Wastewater Treatment Facility in Fayetteville, AR. RNA was extracted from real and synthetic wastewater samples and analyzed in parallel using both RT-qPCR and RT-ddPCR. Findings reveal that both methods demonstrated similar …

Subsurface Characterization Using Electrical Resistivity Tomography (Ert) Integrated With Masw, P-Wave Refraction, And Boring Results, Mohammadyar Rahimi

Graduate Theses and Dissertations

Electrical resistivity tomography (ERT) has gained widespread application in geotechnical engineering as a non-invasive method for subsurface characterization. Despite its versatility, several challenges remain regarding its resolution capabilities, interpretive limitations, and integration with other investigative methods. This dissertation addresses three key applications of ERT, focusing on its effectiveness and limitations in resolving thin subsurface layers, detecting anomalies such as voids, and supporting environmental assessment in river restoration projects.

The first study investigates the ability of ERT to resolve thin, discontinuous clay layers beneath levees, using the Melvin Price Reach of the Wood River Levee on the Mississippi River as a …

Examining Stable Isotope Variation Of Herbivores In South Luangwa Valley In The Context Of Anthropogenic Influences, Taylor Hubbard

Graduate Theses and Dissertations

Stable isotopes are an effective tool for inferring mammalian behavior. Though there are multiple factors that can influence mammalian diets, anthropogenic influence is one that is often overlooked. For example, it is important to consider how wildlife living in areas where there are frequent, documented human-wildlife interactions will modify behavior. National Parks (NPs) are a great example of this because of the common misconception that since there are protections in place, that means it is devoid of anthropogenic influence. South Luangwa National Park contradicts this misconception. Though there are protections for wildlife in place within the park, it is unfenced …

Quick Response Codes In Extension Outreach Communications: Insights From A Visual Content Analysis And Educators’ Perceptions, Kobina Danful Fanyinkah

Graduate Theses and Dissertations

Increased smartphone use presents an opportunity to enhance the creative inclusion of Quick Response (QR) codes in extension outreach efforts. Tailoring extension programs to communicate with specific audiences has been identified as essential, highlighting the need for targeted and context-specific strategies. The development of QR code technology has provided a unique approach that allows extension professionals to target clientele with specific extension messages and programs. While extension has a commendable record in educational delivery through traditional forms of outreach, research on how best to employ digital tools with extension audiences is thin at best. Though the rising popularity of QR …

Male And Female Contributions To Sexual Dimorphism, Catherine L.W. Clayton

Graduate Theses and Dissertations

Since Darwin, the evolution of sexual dimorphism connects to different evolutionary mechanisms reflecting both natural selection and sexual selection. In primates, body size dimorphism has been attributed to multiple factors, including sexual selection, fecundity selection, ecological selection, and other factors. In contrast, canine tooth size dimorphism has been primarily associated with sexual selection in males with minor change in females, with other factors playing only a secondary role. This suggests that the degree to which body size dimorphism and canine size dimorphism covary, controlling for phylogeny, should reflect the strength of sexual selection. Conversely, the magnitude of divergence between the …

Exploring The Role Of Influencer Marketing In The Animal Health Industry: A Content Analysis Of Strategies And Impact, Haylee Henry

Graduate Theses and Dissertations

A review of literature revealed a lack of peer-reviewed research on influencer marketing within the animal health and nutrition industry, specifically within the livestock sector. This study aimed to address this gap by analyzing how animal health and nutrition companies of different sizes utilized influencer marketing and how consumers interacted with content tailored to influencer marketing. A content analysis was conducted. This study collected and analyzed social media influencer posts from eight North American animal health and nutrition companies, three small, three medium, and two large, between January 2023 and December 2024. Influencer content included posts by individuals, partner organizations, …

The Evolving Changes In The Regionalization Of Export Bans On U.S. Poultry Trade From The 2015 And 2022 Highly Pathogenic Avian Influenza Events, Kylie A. Roesler

Graduate Theses and Dissertations

As food security becomes a growing concern worldwide in a trading system dominated by globalization, the safeguarding of a bio-secure food system is at risk. One of the greatest risks to this stability of the system is, highly pathogenic avian influenza or HPAI which is growing in frequency and impact. Therefore, the global response to disease events is evolving into a newfound understanding of disease prevalence across the animal protein industries. This study will analyze the 2022 HPAI event in the United States regarding the regionalization of restrictions imposed by trading partners accounting for trade agreements executed. The examination of …