Digital Commons Network^™

Polyphony: Multitudes Of Vietnamese National Identity Through Experiential Documentation Of Marketplaces, Jade Nguyen

Theses and Dissertations

The exhibition Polyphony brings together photographs from Trades of the Street and Commere(d) Culture, two documentary series portraying Vietnamese marketplaces and businesses across multiple cities in Việt Nam and the United States respectively to provide a cross-cultural and multisensorial perspective on how commercial practices and establishments represent Vietnamese culture and national identity. The market provides insights into Việt Nam’s multilayered history, struggles, ways of living, sense of community, and its vibrant soul and culture. The combination of these two series and the sequencing of the exhibition utilizes the relational nature of photography, which allows new meaning to emerge from a …

With Love & Rage: A Self Portrait Of Borderline Personality Disorder, Sarah Eckstine

Theses and Dissertations

With Love & Rage: A Self Portrait of Borderline Personality Disorder analyses how I use the act of taking self portraits to materialize emotions through photographic means. When I experience intense emotions symptomatic of borderline personality disorder, positive or negative, their onset is routinely sudden and overwhelming; what follows is an impulsive desire to photograph myself to archive the present before the emotions shift or return to stable levels.The Rage images document the emotional aftermath of a sexual assault and rape; anger and depression, by using a red-scale film to emphasize both confrontational and dissociated body language. The Love images …

Preventing Orthopedic Implant Associated Biofilm Infections Using Transition Metal Complex Laminated Bioactive Implants, Sowndarya J

Theses and Dissertations

Orthopedic implants are medical devices employed to repair the damaged structure and function of an injured musculoskeletal system. It helps millions of people suffering from bone fractures and arthroplasty. The increased use of orthopedic implants has given rise to implant-associated biofilm infections. Biofilm-mediated Implant-associated osteomyelitis (IAO) is a major concern in the medical field, wherein the treatment involves debridement, administration of antibiotics and removal of implants leading to increased cost of treatment.

The keystone bacterial pathogens involved in orthopedic implant-associated infections are Staphylococcus aureus and Acinetobacter baumannii which are members of the ESKAPE pathogens. A. baumannii has gained resistance against …

Concurrent Validity And Reliability Of The Vertical Jump And Standing Broad Jump Tests In Youth, Isaac Faamoe

Theses and Dissertations

Muscular power is an important component of fitness with implications for bone health, explosiveness in movements, and predicting long-term health outcomes. However, the literature is scarce concerning commonly used muscular power field tests among youth, including vertical jump (VJ) and standing broad jump (SBJ). PURPOSE: To investigate the relationship between VJ and SBJ. METHODS: Approximately 540 students (9-14 years of age) in grades 4-8 participated in the testing of the VJ and SBJ. Pearson correlations were used to evaluate relationships between jump variables and intra-class correlations (ICC) were used to examine the consistency of the relationship between the VJ and …

Effects Of Individual Quality On Reproduction: Investigating Double Brooding And Egg Pigmentation In House Wrens ( Troglodytes Aedon ), Lauren Marie Leischner

Theses and Dissertations

Some species produce two broods in a season to maximize reproductive success; however, in species such as the house wren (Troglodytes aedon), not all individuals produce a second brood. We completed a cross-fostering experiment and examined the effects of individual characteristics on the probability of producing a second brood using breeding records from a long-term dataset. There was little evidence that the individual traits we examined affected the production of a second brood. However, the production of a second brood was significantly repeatable, indicating that individual characteristics have a substantial effect on the likelihood of producing a second brood. Eggshell …

The Effects Of Diesel Exhaust Particle Exposure On Adipos Mitochondrial Bioenergetics And Inflammation, Cali Elizabeth Warren

Theses and Dissertations

Fine particulate matter (PM2.5) constitutes a significant component of ambient air pollution that has been implicated in the pathogenesis of metabolic disorders, including insulin resistance and type 2 diabetes. Among PM2.5 constituents, diesel exhaust particles (DEP) are prevalent particulates that infiltrate the bloodstream to drive systemic pathologies. The purpose of this study was to characterize the metabolic response of adipose tissue to DEP. We aimed to provide a comprehensive understanding by exploring mitochondrial bioenergetics, characterizing the inflammatory marker profile, including adipokines, and conducting a detailed histological analysis of adipocytes to provide valuable insights to the evolving understanding of the intricate …

Reimagining Rural Readiness: Examining The Challenges Of The Rural Working-Class In Education, Todd Dugan

Theses and Dissertations

ABSTRACT Rural students comprise nearly half of all students enrolled in public schools in the nation. With increasing amounts of students living in poverty, rural school districts are combatting many issues but with less resources than urban and suburban school districts. In addition, new Federal and state regulations continue to be enacted, sometimes to the detriment of students from rural working-class backgrounds. The research design consisted of a collection of memories from the author, who grew up in a rural working-class family and spent a career teaching and leading schools from this demographic, in an autoethnographic journal narrative format. To …

A Global Health Crisis And Its Effects On Teaching Online At A Midwestern Institution, Kari Mcmullen

Theses and Dissertations

This study examined faculty experiences and perceptions regarding online education during the COVID-19 global health crisis. An online survey was assessed for content validity using a team of faculty experts in online teaching and learning. It was administered to a convenience sample of faculty at a Midwestern university. Of the 963 faculty who were surveyed, 98 returned the survey, a return rate of about 10%. The analysis of faculty experiences indicated that faculty adopted new pedagogical practices into their curriculum, specifically problem-based (18.37%) and self-paced learning (5.31%). Additionally, faculty adjusted assessments (42.86%), modified instruction (39.80%), and changed assignment due dates …

Do Gaps Exist Between Preschool And Kindergarten Teachers Regarding Phonological Awareness Knowledge, Carrie Sharp

Theses and Dissertations

The quantitative methods study examined and compared the knowledge of phonological awareness between preschool and kindergarten teachers. A multiple-choice knowledge survey was utilized to determine levels of understanding between the two groups of teachers. The knowledge survey consisted of questions pertaining to definitions of phonological awareness terms and phonological and phonemic awareness tasks. Personal information about literacy trainings the participants had attended and instructional time spent on phonological awareness activities were also included in the knowledge survey. The purpose of the study was to determine if gaps existed between the preschool and kindergarten teachers.

Ecological Drivers Of Plasticity And Parental Care In Poison Frogs, Olivia Brooks

Theses and Dissertations

Parents increase their offspring fitness prospects by providing care, but at the cost of lost current or future reproductive opportunities. Parents often rear multiple offspring simultaneously, and because parents cannot supply unlimited care to their offspring, parents benefit from distributing resources non-randomly within a brood. Having access to information that helps inform allocation decisions can be valuable to parents, and parents may use a variety of information types that are either intrinsic or extrinsic to the offspring to help inform these decisions. Here, I explore the types of information that parents use when allocating resources within broods, and I explore …

Differences In Presenting Concerns Of Anxiety Amongst Students In College Counseling Centers Across The United States, Julia Brim

Theses and Dissertations

Anxiety is one of the most common mental health disorders in the U.S. and is becoming increasingly common and problematic for college students across the country. Building on research conducted at single universities, we used a large national data set from the Center for Collegiate Mental Health (CCMH) and compared self-reported levels of anxiety amongst various groups of college students across the U.S., as well as the prevalence of comorbidity between anxiety reported on the generalized anxiety subscale of the Counseling Center Assessment of Psychological Symptoms (CCAPS) and other mental health concerns. We found that a number of self-reported variables …

Racial/Ethnic Differences In The Effects Of Adverse Childhood Experiences On Suicidal Thoughts And Behaviors Among Youth, Lorres Wan Cheung Jensen

Theses and Dissertations

Previous studies have examined the effects of adverse childhood experiences (ACEs) on various health, well-being, and life outcomes, including suicidal thoughts and behaviors. However, considerably less studies have investigated whether the relationships between ACEs and suicidal thoughts and behaviors vary by race/ethnicity among adolescents. Therefore, this study's purpose is twofold: 1) Is there an association between ACEs and adolescent suicidal thoughts and behaviors? 2) If so, to what extent do these relationships vary across race/ethnicity? Utilizing the 2022 Florida Youth Substance Abuse Survey, methods of logistic regression modeling and categorical-categorical interactions were employed to answer these two questions. Results indicated …

Beyond Referrals: Examining Teacher Sentiment And Racial Disparities In Exclusionary Discipline, Sherrilyn Thomas

Theses and Dissertations

Racial disparities are consistently present in the office discipline referral data for schools. Beginning in primary grades, African-American students are frequently punished more severely and more often than their peers who display similar behavior. Nationally, during the 2017-1018 school year, over two million K-12 public school students were suspended out of school one or more times and of these students, nearly one million were African-American students. These students were suspended at a rate that was four times more than their White peers; these suspension rates are even higher at the middle school and high school levels. This study provides an …

Deciphering How Uropathogenic Escherichia Coli Defends Itself Against The Neutrophilic Oxidant Hypochlorous Acid, Sadia Sultana

Theses and Dissertations

The objective of this dissertation was to investigate how uropathogenic Escherichia coli (UPEC) responds to and defends one of the most potent oxidants produced in neutrophils, hypochlorous acid (HOCl).While most bacteria have no negative effect on human health or are even beneficial, some pathogenic species can cause serious infections, resulting in increased morbidity and mortality. However, the immune system allows the host to efficiently fight back and eradicate pathogens. Innate immune cells (i.e., neutrophils) generate reactive oxygen and chlorine species (RO/CS) to kill invading pathogens, among which HOCl is considered the most potent and abundant one. HOCl exerts its bactericidal …

Understanding Student Perceptions Of A High School Wellness Center: An Interpretive Phenomenological Analysis Qualitative Study, Devan Audrey Clayton

Theses and Dissertations

Adolescents face many challenges at home and at school which impact various areas of their lives, including their academics. Schools have worked to ensure better student mental health outcomes by hiring school counselors, school psychologists, and school social workers. School wellness centers can be an additional resource that students utilize to address mental health challenges during their school day. The purpose of this study is to understand adolescent perceptions of a school-based wellness center. Perceptions of populations who utilize the wellness center and those who do not utilize the wellness center were studied within one high school to understand how …

The Impact Of Applied Mental Health Classes On Eudaimonia, Gratitude, And Heart Rate Variability, Derek Charles Bartlett

Theses and Dissertations

Rates of depression, anxiety, and stress have been increasing and college students are especially at risk. College counseling centers often have long waitlists and have difficulty addressing the growing need for psychotherapy. Researchers have suggested that depression and anxiety may arise because of low levels of eudaimonia and self-compassion. Depression and anxiety not only have a toll on mental health but on physical health as well, as researchers have observed decreased HRV in individuals with depression and anxiety. To address the disparity between available resources and treatment need, applied mental health classes were developed to see if teaching psychotherapeutic principles …

What Special Education Teachers Need To Remain: A Qualitative Study, Corey Michael Sharp

Theses and Dissertations

The persistent challenge of teacher attrition, particularly in special education positions, is examined within the context of the East Dillon School District in Dillon, IL. Despite efforts to recruit and retain special education teachers, vacancies remain unfilled, leading to a disruption to the educational experiences of students with disabilities and the practice of special education teachers lacking training and support. This phenomenological qualitative research study examined the experiences of six special education teachers at Lion Middle School. Using Job Embeddedness Theory, Ethics of Care, and Aptitude-Treatment Interaction Theory as the conceptual framework, this study sought to provide the training and …

End-User Device Management In The Air And Space Forces, Joshua Bonvissuto

Theses and Dissertations

When achieving technical superiority is a matter a national security, it is critical that the Department of the Air Force (DAF) employs a robust Information Technology Asset Management (ITAM) strategy that maximizes mission effectiveness. Since 2022, the Office of the Chief Information Officer (SAF/CN) has been developing a plan to transform the Air Force’s ITAM strategy, primarily intending to centralize End User Device (EUD) procurement to the DAF level. For this study, a Delphi study was conducted to gather expert opinions on key aspects of SAF/CN’s new ITAM strategy to identify strengths, weaknesses, and implementation challenges. This research provides valuable …

Utilization Of The System Engineering Design Process To Design And Test A Low-Cost Infectious Aerosol Control Mechanism For Patient Aeromedical Evacuation, Sara Shaghaghi

Theses and Dissertations

The aeromedical evacuation of military patients is a critical component of care for Armed Forces members. The Air Force’s ability to transport patients relies on the technology and systems available. A vital transport responsibility is keeping the patient and medical personnel safe during transport. The historical and legacy systems provide reliable transport mechanisms for the Armed Forces’ patients infected with high-level biological agents, but drawbacks must be considered. This dissertation will discuss the development, conceptual design, and initial evaluation of a new low-cost, litter-mounted patient transport system, Biological-Mitigation in Patient Transport (B-MIPT), using the “V” model of the system engineering …

Advanced Oxidation Of Methyl Tert Butyl Ether With Ultraviolet Light Emitting Diodes, Aaron R. Neal

Theses and Dissertations

Methyl Tert-Butyl Ether (MTBE) is a volatile, soluble, organic compound introduced to gasoline within the United States as a fuel oxygenator in 1979. MTBE is a common groundwater pollutant due to its high water solubility and resistance to bio-degradation; it commonly infiltrates groundwater sources via leaking underground storage tanks or fuel spills. This research employed ultraviolet light emitting diodes (UV-LEDs) and hydrogen peroxide (H₂O₂) induced advanced oxidation process (AOP) to treat MTBE contaminated water at the bench scale. Using four H₂O₂:MTBE molar peroxide ratios (100:1, 200:1, 400:1, 500:1), MTBE degradation was induced …

Personal Dosimeter Testing For High Altitude Air Crew, Seth D. Bacon

Theses and Dissertations

In 2014 the Thermo Scientific N2 electronic personal dosimeter became the aircrews’ sole means to record ionizing radiation dose. The production of this dosimeter was discontinued in July of 2021, motivating the Air Force to seek a flight-certifiable replacement. The Thermo Scientific Trudose NG, Mirion DMC 3000, and Fuji NRF-51 electronic personal dosimeters, as well as the Landauer InLight optically stimulated luminescent dosimeter, were subjected to mixed gamma and fast neutron fields simulating a high-altitude flight environment. Dosimeters are evaluated on their consistency and accuracy in reporting dose and compared to the current N2 dosimeter’s reported dose.

Single Particle Analysis Of Operation Roller Coaster Environmental Samples, Caleb J. Sapp

Theses and Dissertations

The release of plutonium and other actinides into the environment following a nuclear detonation or accident, poses a health risk to biological systems. The spread, or transportation of that plutonium and its daughter products through environmental and meteorological means increases the potential affect and inherent danger within the surrounding area. In the 1960’s, a study was conducted in a joint effort by the US and Great Britain to collect information regarding the spread of plutonium released into the environment through a sub-critical detonation. Soil samples from these tests were collected by the USAF in 2015, approximately 50 years after these …

Enhancing The Resilience Of Space Systems Against Ransomware Attacks, Petersen F. Hansen

Theses and Dissertations

As their relevance has increased in recent years, space systems have become nearly essential in modern life. They are integral in the operation of navigational systems, military operations, and have ushered in a new domain of scientific inquiry. Technological advances have enabled the miniaturization of components and increased the accessibility of satellites as they find new applications in the form of Cube Satellites. However, even as these advancements have brought satellites to new heights, their interconnectedness leaves them open to new cyber threats. Ransomware attacks are one of the most prominent and disruptive cyber threats to terrestrial systems, and while …

Optimization Of Bluetooth Auracast Broadcast Audio Transmissions Via Signal Modeling, Lauren J. Puseman

Theses and Dissertations

Since 1994, Bluetooth has been used as a Personal Area Network (PAN) to transfer data between devices within a short range. After thirty years of progressive improvement in functionality, security, range, and power efficiency, the Bluetooth Special Interest Group has released a new feature called Auracast, which allows users to tune into nearby public audio streams and receive the feed directly to their wireless headphones or hearing aids. Soon, venues such as convention centers, museums, public forums, and sporting arenas can implement Auracast to better suit their needs. In addition to these public benefits, the Department of Defense can take …

Usmepcom Prescreens: A Value-Focused Thinking Approach, Phillip M. Koenig

Theses and Dissertations

As the recruiting crisis continues to impact the United States Armed Forces, the United States Military Entrance Processing Command (USMEPCOM) continues to search for ways to increase its capability to efficiently determine which applicants are suited for military service. Unfortunately, USMEPCOM does not have a way to evaluate newly suggested alternatives. By leveraging Value-Focused Thinking (VFT), this research describes 28 fundamental objectives that can be applied to a variety of current and future decision problems. Further, this research applies these fundamental objectives to analyze a current decision problem: reengineering the prescreen process to decrease the time from prescreen submission to …

Factors Affecting The Retention Of Active Duty Airmen, Gregory A. Picardi

Theses and Dissertations

This study investigates the factors influencing the early exit of active duty Airmen, particularly in the context of the recruitment challenges faced by the USAF in Fiscal Year 2023. The research highlights the significant impact of the implementation of MHS Genesis, a healthcare administration program, on recruitment processes and the broader issues affecting military recruitment, including physical and emotional trauma concerns among potential recruits. Through a survey conducted at Wright-Patterson Air Force Base involving 251 participants, the study utilizes a Chi-square test to explore the primary and secondary reasons for leaving active duty, with family pressure, stability, and financial reasons …

The Impact Of Advancing Technology On Fire Control Radar Costs, Dustin M. Brewer

Theses and Dissertations

Radar systems are integral components of fighter aircraft, gaining heightened importance with the emergence of fifth-generation variants. Among these systems, fire control radar plays a crucial role by providing pilots with unparalleled long-range sensing capabilities vital for navigation and target identification. The rapid evolution of radar technology is deemed essential to align with the evolving mission requirements, a factor anticipated to significantly impact radar system costs. This research investigates the influence of evolving technology on fire control radar development and production costs. To accomplish this objective, radars are categorized into generations based on existing literature, and a comparative analysis is …

Characterization Of Per- And Polyflouroalkyl Substances In Aqueous Filmforming Foam Wash Waters, John M. Diskin

Theses and Dissertations

The fiscal year 2020 National Defense Authorization Act mandated the publication of a military specification for a fluorine-free firefighting foam available for use no later than October 1, 2023. Replacing AFFF with a fluorine-free alternative creates the issue of decontaminating current firefighting infrastructure of residual PFAS without replacing these systems. To eliminate outstanding PFAS, the proposed solution is to drain the AFFF from current fire suppression systems and flush the plumbing three times with uncontaminated water. This study tested the efficacy of the triple rinse method by conducting scaled down experiments on a variety of plumbing components from a retired …

Modeling Recovery Of The Florida Electric Transmission Grid After Severe Weather Event, Wei B. Guan

Theses and Dissertations

Predicted changes to the climate are expected to increase the frequency and severity of extreme weather events. The Florida electric grid is a critical infrastructure system susceptible to severe weather events, especially hurricanes, causing widespread damage and outages. A foundational concept of the electric grid’s resilience is its ability to recover after extreme weather events, such as hurricanes and flooding. The recovery of the electrical grid after an extreme event is predicated upon the electrical asset's remoteness and the component's level of damage. Using fragility analysis, previous models have assessed the mean time to recover for transmission towers and substations …

Challenges That Inhibit Sbir Commercialization: The Small Businesses’ Perspective, Hart J. Holt

Theses and Dissertations

Every year the United States invests $3.2B in the Small Business Innovation Research (SBIR) Program. The program seeks to promote innovation among the nation’s small businesses. This research considers challenges faced by small businesses working with the DoD, which accounts for half of the annual SBIR investment. We surveyed participating businesses with open-ended questions to understand their perspectives. Our data consists of 286 responses from firms that have held Air Force SBIR contracts. Using Qualitative Content Analysis, we identified five categories of challenges: SolverSeeker Disconnect, Funding, Engagement, Processes, and Seeker Education. Furthermore, the results of a statistical analysis indicated that …