Digital Commons Network^™

Enhancing Cybersecurity Strategies Through Automated Cti Extraction, Risk Prioritization, And Privacy-Conscious Information Sharing, Spencer Rian Massengale

Theses and Dissertations

Cybersecurity operations require the ability to collect and analyze large amounts of cyber threat intelligence (CTI) to assess risks and formulate defensive strategies against emerging threats. This task has become increasingly complex due to the rapid evolution of cyber threats and the growing volume of unstructured, natural-language CTI sources. The scale of data and analysis needed to utilize CTI effectively far exceeds humans' manual capacity, especially for organizations with limited resources. This research focuses on leveraging Large Language Models (LLMs) and machine learning techniques to enhance CTI extraction, risk assessment, and data sharing. We utilized LLMs to automate the extraction …

Drainage Area Limitations Of Single Watershed, Peak Flow Estimates From Nrcs Methods, Timothy Alexander Maughan

Theses and Dissertations

Most roadway design sections of state Departments of Transportation predict peak flow for culvert design using Natural Resources Conservation Service (NRCS) TR-20 methodology. Even though the approach is more than 50 years old, there is no clear guideline for how large a single watershed drainage area may be while remaining appropriate for predicting peak discharge with this method. Our objective is to identify the drainage area where TR-20 peak flow predictions significantly deviate from flow frequency predictions. We aim to recommend to the Nebraska Department of Transportation (NDOT) a range of basin drainage areas appropriate for predicting peak flow using …

Traveling-Wave Vibration Control And Comparison Of Individuals With Insomnia And Good Sleepers Using Eeg Spectral Power And Sample Entropy, Joseph T. Lecheminant

Theses and Dissertations

This thesis explores the intersection of whole-body vibration (WBV) and neurophysiological analysis to improve sleep quality and understanding of insomnia. The work is divided into two primary areas: the development of a novel traveling-wave vibration system for sleep enhancement and the analysis of electroencephalography (EEG) metrics in individuals with insomnia versus good sleepers. A vibrating sleep system capable of generating programmable traveling-wave patterns is designed and prototyped. Through iterative development and user trials, the system enables highly controlled mechanical stimulation in the form of traveling-wave vibration. Key advancements include independent amplitude and speed modulation and customizable wave patterns. Simple wave …

Raman Characterization Of Elastomeric Materials, Shane Michael Drake

Theses and Dissertations

Raman spectroscopy is often used for material identification but may be used for characterization. This document focuses on using Raman measurements to characterize polymers, specifically the curing and aging mechanism for hydroxyl-terminated polybutadiene (HTPB). HTPB is a well-known elastomer used in sealants, non-slip surfaces, rocket repellants and plastic explosives. Raman spectroscopy was used to monitor urethane linkages that form from curing HTPB with a cyanate curing agent to suggest a curing mechanism for HTPB. Since this polymer is highly susceptible to oxidation, the methods used to characterize curing were also used for the aging process to see if urethane breakages …

Cellular Air Quality Sensors With Lora Backchannel A Robust Sensor Suited For Remote Deployment In Harsh Environments, Joseph R. Miera

Theses and Dissertations

Air quality significantly impacts health and overall quality of life, making its measurement essential. However, most affordable air quality devices are designed only for use within WiFi range and cannot handle extreme temperatures, limiting their usefulness for people in remote or extreme environments, such as regions with harsh winter climates. This limitation is concerning, as winter often brings worse air quality due to temperature inversions that trap pollutants and increase fuel burning for heating. Inversion is a problem as close to home as Utah Valley, and as far away as Ulaanbaatar, Mongolia. Most low-cost air quality sensors are not built …

Modalities And Meaning: Instructor Adaptation And Student Spiritual Formation Across Higher Education Learning Environments, Stephanie D. Sorensen

Theses and Dissertations

This dissertation explores the dynamic instructor and student experiences inherent in the evolving modalities of higher education. The first article synthesizes qualitative research about the challenges and successes faced by instructors transitioning to online learning environments, especially in their interactions with content and learners. Emphasizing the importance of support for instructors and institutions, it sets the stage for understanding the nuanced experience of online teaching. The second article presents an exploratory case study of a religious education professor teaching across four modalities. His experience emphasized adaptive strategies and underscored the pivotal role of instructor preparation. Findings revealed the instructor's proactive …

The Effect Of Variable Learning Contexts On Novel Word Retention In Adults, Emily A. Badoni

Theses and Dissertations

This study investigated the impact of decontextualized learning on memory recall and retention within virtual reality (VR) environments. Forty-six healthy young adult participants, both male and female, were randomly assigned to either a consistent VR learning condition (n = 23) or a diverse VR learning condition (n = 23). Both groups were exposed to the same set of 30 nonwords and their definitions across three learning phases. The participants in the consistent condition remained in the same VR environment throughout the study, while the participants in the diverse condition experienced three different VR environments. Immediate and delayed post-tests were conducted …

University Department Chair Perceptions Of Open Access Journals And Open Textbooks, Rebecca Nicole Nissen

Theses and Dissertations

This study investigated the perceptions of university department chairs regarding open access journals and open textbooks. It was conducted as a qualitative single case study analysis using semistructured, in-person, one-on-one interviews. The six participants interviewed are department chairs from a large, private university in the western United States. Five levels of coding were used with thematic codes drawing from the TAM2 model. Findings revealed participant perceptions on (a) personal values, (b) university mission alignment, (c) predatory journals, and (d) promotion and tenure. The results obtained from this study can inform and influence institutional change and can also help inform future …

Physics-Informed Transfer Learning For Process Control, Samuel Arce Munoz

Theses and Dissertations

In the realm of process control, managing complex systems with limited prior knowledge presents significant challenges, particularly in environments where traditional mechanistic models are either unavailable or computationally prohibitive. This work explores the integration of deep transfer learning with system identification and Model Predictive Control (MPC) to develop control strategies that are both data-efficient and computationally streamlined. Initially, Long Short-Term Memory (LSTM) networks are employed to create approximate MPC controllers by leveraging transfer learning from a source system to a target system, demonstrating that transfer learning can achieve comparable performance to traditional MPC methods with reduced training data. Building upon …

Adapting For Accessibility: How Secondary Humanities Teachers Modify Open Educational Resources Using The Universal Design For Learning Framework, Christine Nick

Theses and Dissertations

The purpose of this study was to examine how secondary humanities teachers modify Open Educational Resources (OERs) to align with the Universal Design for Learning (UDL) framework. Originally developed to democratize access to educational content, OERs have become widely used across K–12 settings in the U.S., particularly following initiatives such as the Common Core standards and the U.S. Department of Education’s #GoOpen Project. Despite the growing adoption of OERs, limited research has addressed how teachers adapt these materials to meet the diverse needs of their students, especially through the lens of accessibility and inclusivity. Using the UDL framework, this descriptive …

The Effect Of Applied Mental Health Courses On College Student Anxiety And Perfectionism, Nathan Thomas Rhees

Theses and Dissertations

University students face a variety of mental health challenges, including increasingly high rates of anxiety. As demand for college counseling services among student populations rises, universities have an increasing need for effective and resource-efficient methods of intervention that support student mental health on their campuses. One area in need of research is that of using university classes themselves as a form of preventive intervention. If effective, this kind of preventive measure might be a particularly attractive method of reducing incidence of mental illness on campus and decreasing demand on university therapy resources. This study involves students at a private university …

Securing Legacy Multivalue Pick Systems Modernized By Restful Web Service Apis, Jacob S. Lee

Theses and Dissertations

With more applications accessible on the Web, organizations with mission-critical legacy systems have had to find a way to stay relevant and competitive by modernizing with RESTful APIs. REST architecture, serving as a guideline rather than a strict protocol, offers significant advantages in terms of scalability, flexibility, and independence; however, its widespread adoption has also led to notable security vulnerabilities and weaknesses. Additionally, there is not one all-encompassing security testing methodology to follow when testing RESTful APIs. For this reason, a new security testing methodology was developed for legacy MultiValue Pick systems that implement the REST API component, MVConnect. The …

Precision Reclamation For Improving Mine-Land Reclamation Using Plant-Soil Chemical Analysis And Geospatial Technology, Haley Moon

Theses and Dissertations

The objective of this research was to assess plant-soil relationships and evaluate the use of multispectral drone imagery in predicting revegetation potential and soil properties at mine-land waste rock dumps. Field sampling of soils and vegetation was conducted, followed by Bayesian statistical significance tests and linear discriminant analysis (LDA) to determine key soil variables influencing plant communities. Results indicated that pH and electrical conductivity (ECe) were significant factors in the LDA and identified several plant communities that were associated with similar soil types. In parallel, regression analyses were employed to correlate multispectral drone imagery with soil characteristics and plant cover. …

The Assessment Of Liquefaction Surface Ejecta Predictions On A New Large Dataset From The 2012 Emilia Romagna, Italy Earthquakes, Holten T. Flinders

Theses and Dissertations

The presence of a non-liquefied crust overlying a liquefied layer has been found to have a significant effect on sand ejecta and surficial liquefaction damage, as observed by Ishihara (1985). Following the 2010-2011 Canterbury seismic sequence in New Zealand, almost no foundation deformation occurred in areas with liquefaction susceptible soils overlain by at least a 3 m-thick crust [3]. In contrast, the 2012 Emilia-Romagna earthquake in Italy provided surface evidence of liquefaction despite 6- to 10 m-thick crusts. Several researchers have proposed liquefaction prediction models [e.g. LPI [6], Ishihara Curves [8], LSN [9], LPIISH [10] and the methods proposed by …

The Long Shadow Of Infection: The Long-Term Implications Of Herpes Simplex Virus And M. Tuberculosis Infection, Lydia Howell

Theses and Dissertations

Infectious diseases and autoimmune diseases, such as multiple sclerosis (MS) and type 1 diabetes (T1D), have traditionally been seen as distinct, with separate etiologies and courses of disease. Recent research has shown that infection and autoimmune disease are more closely woven together than previously thought; certain pathogens like Epstein-Barr virus and M. tuberculosis have been shown to cause long-term disruption to the immune system, for example (Bordignon et al 2011, #1) (Zhang et al 2023, #2) (Bjornevik et al 2023, #3). Conversely, a distinct pattern has emerged in developed countries where as rates of infection fall, rates of autoimmune disease …

Understanding The Transitional Needs Of Servicemembers To Veterans: A Focus On Mental, Social, And Behavioral Health, Marieann C. Raguso

Theses and Dissertations

This applied dissertation was designed to fill the gaps on the transitional American veterans’ lived experience using their own voice. The reconstruction of an American Veteran’s identity after transitioning back into civilian life is a process with many challenges. Transitional practices often fail to help veterans to acculturate back into the civilian world. This includes the formulation of identities and associations. There is a lack of consistency in military transitional practices leading to identity loss and the formulation of mental and behavioral disorders. The aim of this study is to examine the lived experiences of veterans who have transitioned back …

Sd-Weat: Towards Robustly Measuring Bias In Input Embeddings For Artificial Intelligence Language Models, Magnus Gray

Theses and Dissertations

Artificial intelligence (AI) is rapidly transforming industries and markets, from healthcare to entertainment, revolutionizing decision-making processes. However, as AI grow more influential, they also risk amplifying existing biases, potentially leading to harmful consequences. Recent advancements in large language models (LLMs), such as GPT-4 and Llama, have heightened concerns about bias in natural language processing (NLP) tasks, driving the need for robust methods to detect and mitigate bias. Current approaches, such as the Word Embedding Association Test (WEAT) and its sentence-level extension the Sentence Encoder Association Test (SEAT) often fall short in capturing the nuances of biases in the input embeddings …

Case Study On A Shift To Open Educational Resources In An Academic Department, Karina May Jackson

Theses and Dissertations

Open educational resources (OER) have the potential to significantly impact the landscape of higher education. However, many users of OER find it difficult to adopt programmatically due to the barriers of awareness, quality assurance, institutional culture, and sustainability. This case study of the successful OER adoption in an education department serves as a look into the conditions and practices that allowed for the promotion, continued use, and production of open educational resources. The results indicate that the climate, technology, and opportunity costs surrounding tenure and promotion were key factors in the faculty's experience with acting on their inclinations toward openness.

Role Of Multimedia And Conative Words In Online Socio-Political Mobilization, Mainuddin Shaik

Theses and Dissertations

In the digital age, social media platforms have become vital for political mobilization, enabling rapid information dissemination, real-time engagement, and virtual community formation. This dissertation presents a novel multi-method framework to analyze mobilization dynamics on multimedia-centric platforms, focusing on Instagram, X (formally Twitter), and TikTok. The study examines Brazilian political protests (November 2022–February 2023) and disinformation and anti-disinformation campaigns during Taiwan's 2024 presidential elections. The research applies a multi-method framework to analyze mobilization characteristics in Brazilian and Taiwanese social movements, grounded in the Diffusion of Innovations (DOI) theory. This approach assesses how multimedia formats—images, sidecars, and videos—influence cognitive mobilization at …

Effect Of Laser Textured Surface With Different Patterns On Tribological Characteristics Of Bearing Material, Paul Joshua S

Theses and Dissertations

This research work determines the wear rate and friction characteristics of bearing material under different laser textured surface conditions. Chrome steels are used in bearings since they possess high strength and wear resistance. However, when those parts are in service, failure happens due to sliding friction before the lifetime. To improve the durability of the American Iron and Steel Institute (AISI) 52100 chromium steel, in this work, the effect of laser surface texturing (LST) was analysed.

With the different pattern of circle, ellipse, groove and grid were produced on the sample surface, the wear behavior was investigated using the pin …

The Raye Montague Digital Collection, Paola Cavallari

Theses and Dissertations

The Raye Montague Digital Collection consists of 735 items that have been digitized and catalogued to tell the story of Raye Montague, the United States Navy hidden figure. The Collection addresses the need to remedy decades of historical invisibility Raye Montague was subjected to because of gender and racial discrimination despite her fundamental contributions to U.S. history. This thesis details how the Collection inserts Raye Montague within a broader historical context that uncovers the role Black women had as federal employees in the U.S. military during and after World War II. It also explains how, in designing the Collection, I …

A Frame, A Jar, And A Mural: An Exploratory Crafts-Based Arts Curriculum Infused With Making, Community, And Place, Laura Ann Rowley

Theses and Dissertations

Situated within the current landscape of loneliness and isolation facing today's youth, this research describes a place-based and crafts-based arts curriculum for elementary students in the Salt Lake area. It uses curriculum as an investigative tool to explore the relationships between crafts, place, making, community and belonging. The curriculum itself incorporates place-based activities including hikes, urban walks, and plein air making while looking at the lives and works of local Salt Lake maker-artists Pilar Pobil, Jann Haworth, and Ben Behunin. It also delves into a wide array of craft arts and making including: decorative frame painting, embroidery, quilting, pottery, rubbings, …

A Comparative Study Of Toxicity Propagation Using Epidemiological Models, Niloofar Yousefi

Theses and Dissertations

This dissertation explores the spread and intensity of toxic content on social media, with a particular focus on platform X (formerly known as Twitter). The growing presence of toxic interactions has sparked concerns about their effects on public discourse. Utilizing epidemiological models such as SIR (Susceptible, Infected, Recovered), SIS (Susceptible, Infected, Susceptible), SIRS (Susceptible, Infected, Recovered, Susceptible), SEIRS (Susceptible, Exposed, Infected, Recovered, Susceptible), and the novel SEImIhRS model (Susceptible, Exposed, Moderate Infected, High Infected, Recovered, Susceptible), which are traditionally used to study infectious disease dynamics, this dissertation examines toxicity in platform X discussions. A key contribution of this work is …

Nonlinear Thomson Scattering In An Intense Tightly Focused Ultrashort Laser Pulse, Yance Sun

Theses and Dissertations

We investigate nonlinear Thomson scattering generated by intense laser pulses focused in noble gases. Electrons are ionized from low-density helium or argon early during the laser pulse and scatter light out the side of the focus. We measure fundamental, second, and third harmonic light focus over nearly the entire emission sphere. We investigate the influence of electron bunching, when individual atoms ionize multiple electrons sequentially as the laser field increases early during the laser pulse. Simulations suggest that correlation between electron positions for the ten electrons ionized from argon should distort the spatial pattern of nonlinear Thomson scattering relative to …

Flying Under The Radar: Navigating Through Frustrations, Tears, And The Politics Of The Liberal Arts Curriculum, Sandra Houghton

Theses and Dissertations

The elements and principles of art continue to highly influence curriculum in the typical art foundations class. The reduction of art and artmaking to their formal properties constricts a student’s ability to engage in real-life artist processes, and many important contextual meanings are lost. Consequently, art foundations curriculum derived from the elements and principles of art narrows the lens through which we create, teach, and talk about art. In my own experience as an art teacher, I have found that this approach limits my teaching and makes it difficult to fully and authentically understand the works of other artists and …

Understanding The Role Of The Heat Transfer Coefficient Between Tool/Workpiece Interface During Friction Stir Welding, Matthew Goodson

Theses and Dissertations

The heat transfer coefficient is a key parameter in modeling friction stir welding and has yet to be measured experimentally. The importance of this parameter was shown through validating friction stir models on both sides of the tool/workpiece interface. Both a transient plunge and a steady state model were validated by matching experimental temperatures. The steady state tool temperatures were matched (with in 2.5%), but the steady state workpiece temperatures were off by around 20%. The transient model of the FSW plunge showed the effect of varying the ℎ𝑊/𝑇 on workpiece temperatures and tool temperatures. Two methods were looked at …

Endolysosomal Mechanisms Of Sars-Cov-2 Spike-Induced Inflammatory Response And Senescence In Human Astrocytes, Wendie Ann Hasler

Theses and Dissertations

The COVID-19 pandemic has led to widespread reports of prolonged neurological symptoms in individuals who have recovered from the acute phase of the infection. These persistent symptoms, collectively termed Neuro-PASC (Neurological Post-Acute Sequelae of SARS-CoV-2 infection), range from cognitive impairments to mood disturbances and other neuroinflammatory issues. Pathological features of Neuro-PASC include vascular impairment, neuroinflammation, and neurodegeneration. One leading hypothesis for the development of Neuro-PASC is the persistent of SARS-CoV-2 viral factors. Post-mortem evidence indicates that the spike protein of SARS-CoV-2 is consistently found in the brains of individuals who died with COVID-19, indicating that viral components can interact with …

Personality Across Realities: Correlations Between Personality Profiles And Preferences Within Roleplaying Games, Brittany Lee Mancha

Theses and Dissertations

Clinically maladaptive behaviors and personality types have been studied within gamers, both those who play video games and those who roleplay in tabletop games. However, the connection between personality types and the preferences of the players themselves in what and how they roleplay is just barely being studied. Personality traits, such as extraversion/introversion and motivation by pain or pleasure, may be both influencing the gameplay decisions and preferences of players, and vice versa. A total of 500 respondents completed the Millon Index of Personality Styles, Revised (MIPS-R), followed by a demographics survey and finally a survey assessing Dungeons and Dragons', …

The Role Of Carbon Source And Redox Potential On Microbial C1 Gas Fermentation For Ethanol Production, Ademola Owoade

Theses and Dissertations

In the quest for sustainable and renewable energy sources, microbial gas fermentation has emerged as an alternative method for producing bioethanol and other valuable chemicals. Bioethanol is notable for its extensive application as a biofuel and its capacity to reduce greenhouse gas emissions. Conventional ethanol production predominantly depends on sugar and starch feedstocks, which compete for food resources. Microbial C1 gas fermentation presents a sustainable alternative by using industrial waste gases, or gases from gasification of municipal solid wastes, biomass, agricultural residues, animal wastes, and energy crops, which are all nonfood-based. Microbial gas fermentation is influenced by temperature, pH, gas …

Using Problematic Sexual Behaviors And The Developmental Life Course Model To Predict Criminal Justice Involvement And Psychopathology By Early Adulthood, Amanda Schwartz

Theses and Dissertations

The developmental life course (DLC) model explains risk factors and developmental patterns among juveniles who have committed more than one sexual offense by considering the impact of major life events, experiences, and risk and protective factors throughout various developmental stages. Using an archival longitudinal dataset, the Longitudinal Studies of Child Abuse and Neglect (LONGSCAN), this study applied the DLC model to explore the relationship between gender and onset and persistence of problematic sexual behaviors (PSBs) in childhood and adolescence with criminal justice involvement and psychopathology by early adulthood (N = 330, 46% male, M = 18.26 years) after controlling for …