Digital Commons Network^™

Examining Group Components On Exercise Adherence In Older Adults, Brody Polk

Masters Theses

Older adults remain the least active population despite the well-known benefits of regular exercise (Beauchamp et al., 2007; Rúa-Alonso et al., 2023). Researchers examining exercise adherence in older adults have determined two modalities of training—individual and group—with individual training being the preferred mode of exercise for older adults (Beauchamp et al., 2007). However, previous research has failed to evaluate the various components of group exercise before making a comparison with individual exercise to determine which form best predicts older adults’ adherence to exercise (Hawley-Hague et al., 2014). As such, the purpose of the current study was to examine the effects …

Evaluation Of The Impact Of Secondhand E-Cigarette Aerosols On Ros-Mediated Alterations Of Epigenetic Events: Implications For Copd Pathogenesis And Assessment Of The Efficacy Of Cold Atmospheric Plasma In Degrading Organophosphate Pesticides On Kevlar Materials, Ta-Chun Lin

Masters Theses

"We explored 1) the toxicological impacts of e-cigarette aerosols and 2) the decontamination efficacy of Cold Atmospheric Plasma (CAP) technology over organophosphates. In examining the effects of firsthand and secondhand e-cigarette aerosol exposure on A549 and BEAS-2B lung cells, we observed significant cytotoxicity, increased ROS levels, and epigenetic modifications, including heightened DNA methylation and downregulation of histone deacetylases (HDACs). These molecular alterations may contribute to chronic respiratory conditions, such as COPD, underscoring the health risks of e-cigarette exposure.

We investigated CAP’s effectiveness in degrading organophosphate pesticide (OP) residues on fabric surfaces, revealing that CAP treatment effectively decomposes OPs such as …

Automated Generation Of Malware Metadata Signatures, Joel Schott

Masters Theses

In advanced, targeted malware attacks, the custom software tools used to package and send malicious files and messages can lead to distinctive metadata values that facilitate creation of a malware metadata signature. Manual creation of these signatures requires expert domain knowledge and is time-consuming and error-prone. Our goal is to automate this process. We created several methods of automatically generating malware metadata signatures for ZIP files and emails. We evaluated these methods by comparing signatures generated with these methods to existing expert-created signatures. We found automated methods for ZIP files and emails that are capable of generating metadata signatures that …

Emi Mitigation, Material Characterization, Transformer Equivalent Circuit Modeling, Reza Vahdani

Masters Theses

Modern high-frequency electronic systems demand precise characterization and modeling techniques to ensure signal integrity and electromagnetic compatibility. This thesis presents three core studies focused on real-world challenges in high-speed and power electronics: EMI mitigation using 3D printed absorbers, wideband liquid dielectric characterization, and accurate transformer modeling.

The first study demonstrates a targeted approach to mitigating electromagnetic interference (EMI) in a commercial router. By using holography imaging to identify radiation hotspots, custom absorber structures were designed with commercially available materials, fabricated via 3D printing, and applied directly to emission sources. Radiated emission tests in a reverberation chamber showed up to 9 …

Ground Testing Of Cryogenic Environments In Vacuum Conditions, Lucas A. Scott

Masters Theses

The environment in the vacuum of space is unforgiving and ever-changing. Not only facing the lack of a protective atmosphere, but powerful radiation and extreme temperature ranges as well. Equipment destined for space must be hardened to withstand them. Just launching satellites that are theoretically able to survive these conditions is unfeasibly costly in the event of failure. Because of this, spacecraft must be tested in a simulated environment that can match the harsh climate in space. Therefore, it is the goal of the Gas and Plasma Dynamics Lab's (GPDL) to test and prove specific methods of recreating these conditions. …

Frequency-Tracker And Power Supply For Piezoelectric Lunar Dust Removal Actuator, Praneeth Uddarraju

Masters Theses

"This work presents a reconfigurable phase-locked loop (PLL)-based control system for the resonant excitation of piezoelectric actuators aimed at automated removal of particulate contaminants from photovoltaic (PV) surfaces—particularly in extraterrestrial environments such as the lunar surface. Regolith or lunar dust buildup on solar panels is a serious hazard to the effectiveness of energy harvesting on extended missions. By using high-frequency structural excitation and inertial forces the suggested system removes surface impurities. Tunable Sallen-Key low-pass filters for reliable feedback conditioning are used in conjunction with a digitally implemented PLL on an FPGA (XLR8 platform) to precisely lock the drive frequency to …

Performance Of Standard Medical Mllms On Ecg Image Data, Prisha Anil

Masters Theses

This work presents a structured benchmarking study of multimodal large language models (MLLMs) applied to electrocardiogram (ECG) interpretation tasks. We evaluate three representative architectures: MedGemma, HuatuoGPT-Vision, and LLaVA-Med, across progressive experimental stages involving text-only structured prompt normalization, text–image fusion with ECG plots, and full multimodal fusion incorporating time-series signals. A standardized five-section cardiology prompt was designed to enforce consistent output structure and SCP-code alignment, enabling reproducible metric computation across models. Quantitative evaluation using BERTScore, token-level F1, and diagnostic accuracy demonstrates that HuatuoGPT-Vision achieves the highest semantic and diagnostic alignment, while MedGemma exhibits superior formatting stability and reproducibility. In contrast, LLaVA-Med …

The Role Of Post-Cloacal Gland Biofluorescence In Male-Male Communication In Plethodon Cinereus, Kasey Watterson

Masters Theses

Biofluorescence is increasingly recognized as a potentially important form of visual communication across a wide range of taxa, yet its ecological and behavioral function remains largely untested in many terrestrial species. In the red-backed salamander (Plethodon cinereus), fluorescence is a sexually dimorphic trait most strongly expressed in males, particularly around the cloacal region and ventral side of the tail, areas that are often displayed during territorial contests and courtship. Rival males also direct behaviors like cloacal investigation toward these fluorescent regions, suggesting a potential signaling function. Since fluorescence is often displayed during territorial contests, I hypothesized that fluorescence in male …

I Can’T, I’M On-Call: The Psychological Effects Of On-Call Duty On Graduate Assistants In Residence Life, Dyjerlynn T. Peter

Masters Theses

Graduate Assistants (GAs) face various demands such as conducting research, completing coursework, holding assistantships, and other personal responsibilities. GAs working in housing and residence life (HRL) departments face unique challenges, especially those who serve as crisis responders for students who live on-campus. This study examines the mental health challenges faced by graduate assistants in housing and residence life who live on-campus and serve in on-call roles at higher education institutions. It explores the effects of vicarious trauma, compassion fatigue, and burnout, offering key findings, trends, and recommendations while sharing personal stories of GAs balancing on-call duties with graduate studies.

Buscando El Paraíso: Imposter Syndrome Amongst First-Generation Latino/A/X Students At Predominately White Institutions, Luis Fernando Paniagua

Masters Theses

As more first-generation Latino/a/x college students enter universities across the United States, it is essential to understand the various challenges this population may face. One major challenge these students may face is the psychological phenomenon known as imposter syndrome. This study was conducted to understand the causes of imposter syndrome in first-generation Latino/a/x college students as they attend a predominantly White institution (PWI). Using a semi-structured phenomenological design, data was collected from six participants at a medium-size PWI in the Midwest. Qualitative analysis revealed that there is a connection between Latino/a/x students and imposter syndrome being developed both prior to …

For Her Horror: Sociopsychological Gratifications Obtained By Fem Fans Of The Slasher, Brooke Eaglesong Wilson

Masters Theses

Those who side with the unjustified killer in slasher films are doing so to fulfill sociopsychological needs that are not being met in social reality. There were three main findings found in this study. First, participants sided with the unjustified killer in slasher films to gratify needs that were not being fulfilled in their careers such as the need to perform without having to consult mentors, not unlike how the unjustified killer murders victims without discussing with others. Second, participants sided with the unjustified killer in slasher films to gratify needs in their romantic relationships such as the need to …

The Impacts Of International Students’ Membership In Co-National Student Organizations, Krofaa Otuo-Srebour

Masters Theses

This study explores the impact of international students' membership in co-national student organizations on their adjustment to U.S. higher education institutions. Despite significant literature on the psychological predictors of adjustment, there is a gap in examining the social support gained through non-academic student organizations composed of individuals from the same country or region. Using a qualitative phenomenological approach, the study investigated challenges international students face in the U.S. and how culturally specific groups impact their adjustment. The findings underscore the importance of co-national student organizations in supporting international students’ adjustment processes and suggest practical implications for university administrators to enhance …

The Forgotten Student Leader: The Leadership Experiences Of Ncaa Division I Team Captains, Alex Warrick

Masters Theses

In the modern era, NCAA Division I sports fans and the media fixate on which teams have the biggest stadium, the implications of the transfer portal, which of their favorite players has the largest Name, Image, and Likeness (NIL) or scholarship deal, and who has the most accolades. Due to this, what goes on behind the scenes for the athletes that are impacted by these headlines and tall ordeals often gets lost. The purpose of this narrative, qualitative study was to examine the leadership experiences of the student athletes who have been historically forgotten in discussions about student leadership, the …

Vertical Transfer Students: Experiences With Orientation Programs And Transition, Gulmira Abdyrahmanova

Masters Theses

Community college students are a growing student population in the United States, however their transition to four-year institutions remains complex and students face different challenges. This study explores the student’s orientation and transition experiences. While academic integration was generally positively supported by articulation agreements, personalized academic advising, and family support many transfer students reported difficulties with social integration, impacting their sense of belonging. The findings suggest that successful transfer requires three stages of support as pre-transfer planning; orientation and initial transition; and continued personalized support throughout the first semester. Recommendations include stronger partnerships between institutions, more individualized advising, and ongoing …

Understanding First-Generation College Students’ Perceptions Of Sorority Recruitment, Megan Morecraft

Masters Theses

This study explores first-generation college students’ discovery of sororities, influences for going through a recruitment process, and motivations for selection. There is a gap in the literature when it comes to first-generation college students and greek organizations, specifically sororities, and this study aides in bridging the gap and providing information regarding strategies for recruitment and marketing practices. With more informed practices on first-generation student populations, an increased quality of marketing and programming could be implemented, as well as retention. This study and its findings allow for more intentionality and enhancements to occur, especially when promoting the greek experience and sorority …

Emotion Regulation And Social Support As Protective Factors To The Associations Between Adverse Childhood Experiences And Mental Health-Related Issues, Cassidy B. Mccarthy

Masters Theses

This study was designed to examine emotion regulation and perceived availability of social support as possible protective factors to the relationship between adverse childhood experiences (ACEs) and mental health issues. The study explored both emotion regulation difficulties and perceived availability of social support (PASS) as mediators to the relationship between ACEs and mental health issues. Emotion regulation difficulties were also assessed as a mediator between PASS and mental health issues. PASS was tested as a moderator between ACEs and mental health issues by affecting emotion regulation.

Results indicated that emotion regulation and PASS each partially mediated the relationship between ACEs …

Mental Health Supports In The Public Schools, Elizabeth Walters

Masters Theses

Increasingly, young students experience mental health challenges, some as early as first grade. With mental health challenges reaching students at younger ages, teachers and school staff need to be ready to assist their students in need. Roughly a third of young people experience mental health challenges, and 70-80% are unable to receive mental health services. As a large portion struggle in school with mental health concerns, teachers and school staff are likely to be the first to see any potential signs of struggle. When teachers notice signs of a student struggling with mental health, the staff often do not know …

Implementation Of Competency-Based Education In East Central Illinois, Cheyenne Warman-Neal

Masters Theses

The purpose of this study was to investigate the perceptions of the effectiveness of competency-based education in a rural school district located in East Central Illinois. The researcher examined the first phase of implementation of Competency-Based Education (CBE) in both middle and high schools of this school district through surveys of students and teachers, along with students’ Measure Academic Proficiency or Performance (MAP) Test scores in ELA and Math. MAP score data was obtained from 669 students for ELA Growth and 699 students for Math Growth. Survey data was obtained from 70 high school students and six teachers. Student survey …

A Multitude In The In-Between: The Impact Of Perceived Social Support On Resilience For Neurodivergent And Gsd Identities, Along With Barriers To Receiving Support, Theo Edwards

Masters Theses

This study used intersectionality theory to examine how overlapping minority identities impact receiving social support and the cultivation of resiliency. Individuals who identify as in the Gender and Sexually Diverse (GSD) community or the neurodivergent (ND) community may experience unique stressors due to various barriers to support. Overlap of GSD and ND identities can present added struggles. Information from 46 GSD and/or ND college students was collected through self-report scales and recorded interviews to examine the effects of perceived social support on resiliency. Also assessed were common values in social support like having someone to talk to and being understood, …

Effects Of Perceived Procedural Justice On The Relationship Between Visa Application Outcome And Psychological Distress: Evidence From Ghanaians And Nigerians Applying For U.S. Student Visas, Harriet Swanzy-Baffoe

Masters Theses

Visa interviews are not just bureaucratic processes; they can have significant psychological effects on applicants. This study examined the impact of U.S. student visa outcomes on psychological distress among West African applicants, with particular attention to perceptions of procedural justice during the interview process. The study surveyed 203 Ghanaian and Nigerian individuals who had previously applied for a U.S. student visa. Psychological distress was measured using the Impact of Event Scale-Revised (IES-R), and perceptions of fairness were measured with a custom-developed Procedural Justice Scale. Independent samples t-tests showed that denied applicants reported significantly higher distress, although elevated symptoms were also …

Improving The Operator-Swarm Dynamic Under Mental Fatigue Constraints In Search And Rescue Operations, Jordan Morrow

Masters Theses

"Human-robot applications that allow for work to be done remotely are largely dependent on the lassitude of the operators. The exhaustion of these operators is a result of work completion and duration. Previous research attempts to evaluate the impact on reaction by quantiying human weariness. This paper examines how human weariness affects the human-robot dynamic in UAV-assisted search and rescue missions. An explanation of the connection between mental exhaustion and operator responsiveness over prolonged durations is provided by the search and rescue operations using UAV swarms (SAROUS) model. Through the use of artificial intelligence, SAROUS is modernized. This allows the …

Transfection Of Ionizable Lipid Nanoparticles On Raw 264.7 And Mda-Mb-231, Lavanya Bhargava

Masters Theses

"This thesis investigates the preparation, characterization, and transfection efficiency of various ionizable lipid nanoparticles (LNPs) formulated for the delivery of mRNA encoding enhanced green fluorescent protein (EGFP) in RAW 264.7 macrophages and MDA-MB-231 breast cancer cell lines. The ionizable cationic lipid studied are ALC-035, C12-200, C14-4, PPZ-A10, DLin-MC3-DMA. The study addresses the need for effective gene delivery systems to provide a safe and versatile platform that protects and transports nucleic acids into target cells. LNPs were synthesized using microfluidic mixing methods, incorporating lipid components such as the cationic lipids, DSPE, DOPE, cholesterol and PEG lipids to achieve controlled particle sizes, …

On Optimizing Sensor Data Collection, Processing, And Storage For Industrial Additive Manufacturing, Steven Thompson

Masters Theses

The widespread adoption of digital data management methods for transformative technologies, such as additive manufacturing (AM), within the aerospace industry is impeded by poor interoperability between AM component manufacturing processes. Moreover, data quality may be compromised due to sensor failures or other corruptions. Additionally, massive amounts of data are collected during these processes, often needing to remain accessible for decades. These storage costs can place a significant financial burden on smaller suppliers. This work aims to make digital data management methods more affordable and, therefore, approachable for smaller suppliers.

First, the design and initial implementation of an affordable and adaptable …

Augmentation Of Quality Of Service, Security, And Trust In Edge-Enhanced Iot Networks Leveraging Blockchain, Kyle Matthew Whitlatch

Masters Theses

The meteoric rise of the Internet of Things (IoT) has led to multiple architectural schemas to handle the data these devices create. Edge-enhancement is a technique where groups of IoT report to a median layer to aggregate the data before relaying to the endpoint. These edges also open opportunities to perform more operations to ensure devices are behaving properly before committing the data to long term storage. By interconnecting these edges with a technology like blockchain, it is possible to have an interconnected and responsive system to ensure the Quality of Service (QoS) of the IoT devices within the architecture …

Aerodynamic Design Workflow Optimization For Fsae: Advanced Cfd And Hpc Automation, Kyle Maynor

Masters Theses

This research identifies and resolves inefficiencies in the Computational Fluid Dynamics (CFD) workflow of the Missouri S&T Racing Formula SAE Team’s aerodynamic development. Key bottlenecks were found in simulation runtime, laborious simulation preparation, an overly manual simulation submission process, and unchecked mesh quality. A fully reimagined workflow was implemented with simulation parameters to adjust vehicle attitudes. From this, an automated design sweep could be executed to generate aero maps of the developing vehicle using the Design Manager Project. A Python-based submission app handles the terminal interfacing and macro editing that significantly slowed the job submission process before. Using a university …

Development Of Stalling Detection Algorithms And Operator Behavior Models For Evaluating Hydraulic Excavator Performance, Mateo Fernando Montenegro Defaz

Masters Theses

This study aims to develop a reliable algorithm for stalling detection and investigate how operator behaviors impact the truck-loading process, focusing on swing and bucket rotations. While the study of excavator digging conditions and equipment performance is well understood, describing stalling from telemetry data and the influence of operators’ behavior on overall system efficiency remain underexplored. This study seeks to: (i) develop a reliable algorithm for stall detection by analyzing key operational variables such as velocity and angles; (ii) implement statistical and machine learning techniques, specifically a Support Vector Machine (SVM) classification algorithm, to differentiate between ideal and non-ideal digging …

Design Of A Spacecraft Power System Experiment, Jay Bakulkumar Kamdar

Masters Theses

This research delves into the design, implementation, and analysis of a controlled experimental framework for photovoltaic cell characterization and its application in spacecraft power systems. Such a system was simulated and validated by benchmarking characteristics of a photovoltaic module and implementing them in a system design simulation yielding performance data for comparative analysis. A hardware setup was developed to perform IV characterization tests under steady state thermal conditions. Experiments conducted across various thermal regulation profiles helped quantify the effects of temperature on the photovoltaic performance parameters. Active cooling reduced the steady state cell temperature by 17.9% and improved the cell …

Enabling Drone-Integrated Active Microwave Thermography Via A Slot Antenna Design, Alec P. Fitzmaurice

Masters Theses

Civil infrastructure inspection quality and inspector safety may be enhanced from the advancement in the capabilities of nondestructive testing and evaluation of remote or otherwise hard-to-reach areas such as nuclear power plants, wind turbines, bridges, or other civil infrastructure using drone-based Active Microwave Thermography (AMT). AMT is a nondestructive testing technique that utilizes high frequency energy (often radiated from an antenna) to induce heating in a specimen. Following this thermal excitation, an infrared camera is used to measure the resulting surface thermal profile. From this, defect indications may be detected. To enable drone-based deployment of AMT, where the antenna size …

Earnest And Authentic Translation From Victorian England To The Wilde West, Carly E. Mcclure

Masters Theses

Oscar Wilde’s critical, theatrical, and fiction works (notably The Importance of Being Earnest and The Picture of Dorian Gray), critique Victorian societal norms through themes of authenticity, duplicity, and identity. In a period marked by strict domesticity and concealed social contradictions, Wilde’s satire dismantles rigid ideologies, exploring self-discovery and societal expectations. Through a retroactive and contemporary definition of authenticity, Wilde’s works exhibit an advocacy for art as a central pursuit rather than purely a reflection of societal norms, which is a defining value of his Authenticism. Wilde’s emphasis on Aestheticism is a key component of his authentic representation of self, …

Sixth Grade Music Composition Unit: A Second Semester Curriculum For Georgia’S Middle School Choral Students, Michaelyn Cortez Findley

Masters Theses

This research presents a music composition curriculum unit designed for middle-school choral students in Georgia, aligned with the state's Standards of Excellence in Music. The unit emphasizes composing, revising, and integrating technology, with a focus on a spiral curriculum that builds upon students' prior knowledge. Key elements include solfege, Takadimi rhythms, call-and-response melodies, and folk songs, providing a comprehensive framework for learning. MuseScore, a music notation software, is used as the primary tool for students to develop and notate their compositions progressively.

The research identifies a gap in resources for teaching composition to choral students with existing musical knowledge and …