Choices Behind The Color: An Analysis Of Paint Finish Variations In South Carolina Slave Dwellings, Lyrik Castro-Bailey

All Theses

This research sought to discover what analytical methods would allow a preservationist to access, analyze, and interpret the agency enslaved people had in selecting the interior finishes of their living quarters. Ten sites ranging in construction from 1712 to 1847 were analyzed including: Lavington Plantation Slave-Quarters, Drayton Hall Cellar, Nathaniel Russell House Kitchen-Quarters, Aiken-Rhett Slave-Quarters, John Fullerton House Kitchen-Quarters, 38 Church Street Kitchen-Quarters, 72 Anson Street Kitchen-Quarters, 54 Hasell Street Kitchen-Quarters, Capers-Motte House Kitchen-Quarters, and the Heyward House Kitchen-Quarters. Photomicrographs collected by the author and conservationist Dr. Susan Buck were organized to examine the layers of pigments. Munsell Colors were …

Analysis Of The Right Sizing Approach To Healthcare Space Planning, Johnathan Anspach

All Theses

Achieving optimal spatial design in healthcare facilities is crucial for efficient operations and high-quality patient care. This study investigates the application of the right-sizing approach to healthcare conceptual design, with a specific focus on the Medical-Surgical Unit (MSU) and Intensive Care Unit (ICU) departments within inpatient wards. Utilizing a robust methodology, foundational parameters and constraints were established to align with the functional requirements of a 100-bed hospital case study. Through a systematic process, industry practitioners contributed valuable insights via surveys, facilitating the quantification of parameter rankings essential for spatial decision-making.

Analysis of the data revealed significant correlations between parameters, emphasizing …

An Analysis Of Communication Trends Of East Coast Historic Preservation Nonprofit Organizations, Caroline Byrne

All Theses

Communication in preservation is key to elevate the momentum of preserving the built environment, historic communities, and cultural landscapes. Effective communication should expand diversity and inclusion of key demographics that have not been sufficiently reached via current or historic outreach methods. Intentional and direct strategies to message specific communities could make an impact on the future success of preservation.

This thesis uncovers the trends of current communication practices at historic preservation nonprofits along the East Coast in an effort to evaluate factors that impact methods and evaluation. The purpose of this study is to understand the current methods deployed by …

Methodology For Volumetric Estimation Of Condensed Water Vapor Plumes From Remotely Sensed Imagery, Ryan J. Connal

Theses

In recent years, technological developments have advanced the capabilities of computer vision techniques, including those leveraged toward 3D reconstruction with Structure-from-Motion. This process allows for the generation of accurate 3D models from sets of 2D imagery. With accurate feature detectors and matchers, Structure-from-Motion remains a widely used technique. However, the reconstruction of 3D structure is heavily dependent on the spatial characteristics of the object of interest. Fast-moving, featureless, and dynamic objects suffer from this latter issue, where standard or advanced feature detectors cannot derive any information on the object's surface. With the goal of producing three-dimensional geometric reconstructions of condensed …

The Impact Of Online Tools On Student Writing, Rebekah Probst

Master's Theses

Our classrooms today are vastly different from those just a few years ago. Many students are foreign to learning without any technology. In light of this drastic change in our classrooms, it is important to understand the new age's impacts on our students and their learning abilities. This research study used a mixed-methods design to explore online tools' effects on student writing. The research examines data collected from a fifth grade over two months, which included student writing samples and survey responses. This research compared outcomes between handwritten responses and those with access to tools such as automatic correction features. …

The Impact Of Play-Based Learning On Early Childhood Development, Aubry Mauro

Master's Theses

This action research project emphasizes the recognized influence of play on children’s social, emotional, and cognitive growth. The researcher explored how play-based learning strategies contribute to students’ development, drawing insights from existing literature. The research used mixed methods to analyze the impact of play-based learning on social, emotional, and cognitive development in a sixth-grade classroom. The researcher collected data over six weeks. Initial findings showed the effect of play-based learning on students' development. The baseline data in this action research project showed that this group of students enjoys playing inside, outside, independently, or in a group. The researcher found that …

Green Synthesis Of Silver And Titanium Nanoparticles Using Erythrina Variegata Root Bark Extract And Evaluation Of Their Antioxidant And Cytotoxicity Effectiveness, Naiyah Mcdaniel

All Theses

Erythrina variegata belongs to the Erythrina genus, which consists of approximately 110 species of trees and shrubs. In its native regions, different parts of the plant have been used for its effectiveness in treating asthma, epilepsy, bacterial infections, and wounds. Characterization studies have been done for this plant, and researchers have identified several alkaloids, flavonoids, and other active phytoconstituents that help treat different ailments. Prior research has focused on the phytochemical profile of E. variegata’s leaves, flowers, and stem bark. This work aimed to address gaps in the characterization of E. variegata’s root bark while exploring the effectiveness of titanium …

An In Vitro Investigation Of Urothelial Cell Function In Response To Hypoxia And Pressure In Relation To Bladder Outlet Obstruction, Britney Hudson

All Dissertations

Bladder outlet obstruction (BOO) is a prevalent urological condition and can be characterized by the presence of lower urinary tract symptoms (LUTS), such as hesitancy, weak stream, and nocturia. The main cause of BOO is a partial blockage of the urethra, which results in elevated voiding pressure, high storage pressure, and tissue ischemia, which are thought to be the triggers of bladder inflammation and subsequent fibrosis. Often patients do not seek treatment until the conditions get severe. Thus, it would be ideal to have an early diagnostic tool to detect changes in the bladder due to BOO. Extracellular vesicles (EVs) …

Factors Affecting Teacher Retention In A Selected South Carolina School District: Perspectives Of Administrators And Teachers, Alvilda Graham

All Dissertations

In this qualitative descriptive case study, I explored the issue of teacher retention, a growing concern within public K-12 education systems in the United States, particularly in South Carolina. I aimed to understand the unique organizational factors within individual school districts that influence retention decisions from the perspectives of teachers and administrators at the middle school level. I focused on a selected South Carolina school district (SSD) and explored the viewpoints of teachers and administrators regarding teacher retention. To better understand their lived experiences, I conducted semi-structured interviews and surveys with middle school teachers and administrators. Using an improvement science …

Promoting The Integration Of Direct-To-Consumer Genetic Testing Results Into Clinical Practice, Kanesha Glenn

All Dissertations

In recent years, individuals have become interested in what insights direct-to-consumer genetic testing (DTCGT) can offer about their health. These individuals are recommended to discuss their concerns with a healthcare professional, yet most primary care professionals do not have a genetics-focused practice. This dissertation comprises five chapters to describe the integration of DTCGT results into a patient visit. Chapter I discusses the expanding demand between patients with questions about their DTCGT results and the health professionals who have been tasked to interpret these results. Chapter II is a systematic literature review that identifies what health professionals think about results from …

Models Of Functional Redundancy In Ecological Communities, Sandra Annie Tsiorintsoa

All Dissertations

Functional redundancy is the number of taxa that perform a given function within a given community. In most systems, high levels of functional redundancy are important, because they contribute to ecosystem stability. However, we currently have very little understanding of why functional redundancy varies among communities. One possible factor that could affect functional redundancy is environmental complexity. Many studies show that simplified ecosystems harbor communities with lower taxon diversity. What is less clear is if this simplicity and lower taxon diversity also affects functional redundancy. To answer this question, we use metacommunity models to explore the connection between environmental complexity …

The Development Of A Convenient And Consistent Methodology For Flight Proficiency To Certify Multi-Rotor Uas Pilots For State Departments Of Transportation, Colin Dees

All Dissertations

To fly an unmanned aircraft system (UAS), commonly referred to as a “drone,” the Federal Aviation Administration (FAA) requires pilots to pass a knowledge test. There is no requirement at the state or federal level for drone operators to demonstrate the ability to operate a UAS. The National Institute of Science and Technology (NIST) has created an exam for public and private entities to assess basic UAS flight proficiency. It is the only nationally recognized flight proficiency protocol. NIST does not provide a scoring recommendation and leaves it to the user to determine the minimum criteria to pass. There is …

Evaluation Of An Emergency Department Provider Information Update On The Initiation Of Suboxone With A Community Treatment Program Referral For Opioid Overdose And Opioid Use Disorder, Carmen Brewington

All Dissertations

Over 21 million people in the United States (U.S.) require substance use disorder (SUD) treatment; yet less than 4 million people receive treatment (Bressan & Kening, 2023). According to Thomas et al. (2022), opioid overdose deaths are increasing, and improving access to evidence-based treatment is critical. Hospital emergency departments (EDs) play a lifesaving in the emergency treatment of opioid overdoses; but can also serve as gateways to opioid treatment by healthcare providers for opioid addictions (Reuter et al., 2022). Mortality, after an ED visit for opioid overdose, is high (Thomas et al., 2022). Community resources are limited, thus making it …

Harnessing Nature's Building Blocks: Exploring Sustainable Biomass For Polymer And Composite Materials, Kavan Sheth

All Dissertations

The automotive industry has been actively pursuing lighter and more fuel-efficient vehicles to address rising emissions and challenges associated with global warming. Polymers such as polyamides, polyolefins, and polyesters play a crucial role in reducing the weight of structural components while maintaining required safety standards. However, this transition has inadvertently made the automotive sector one of the largest contributors to plastic waste generation. Plastic waste presents a significant challenge due to its chemically inert nature, leading to its persistence in the environment and the leaching of toxic chemicals over hundreds of years. Scientists and lawmakers have been tackling this issue …

Reinforcement Learning-Based Energy Management For Electric Vehicle Application, Yiming Ye

All Dissertations

The increasing concerns about transportation pollution and fossil fuel depletion motivate many studies on vehicle electrification and advanced energy-saving propulsion systems. When Comparing with traditional internal combustion engine vehicles, electrified vehicles, such as battery and supercapacitor electric vehicles, are equipped with more than one power source in the hybrid propulsion system, which can save more energy through efficient power combinations. Lithium-ion batteries are the preferred choice for energy storage in electric vehicles due to their superior energy density and cost-effectiveness. Nevertheless, matching the required power input and output leads to in an unwanted growth in the size of the battery, …

Novel Vector Assignment Approach For Inherent Strain Modeling Of Laser Powder Bed Fusion Manufacturing, Lucas M. Morand

All Dissertations

The expansion of the design space due to additive manufacturing (AM) has been a large motivator for the success of this family of processes. Despite the complexity of the physics in metal laser powder bed fusion AM causing significant stresses and strains in finished parts, the design advantages and subsequent performance improvements continue to drive the expansion of AM. Because the trial-and-error approach to AM part development is cost prohibitive, simulation of prints has become crucial. However, full thermo-mechanical simulation is susceptible to the same pitfall of time and computational cost in order to attain part-scale results. The development of …

Essays On Trade Policy, Ward Reesman

All Dissertations

This dissertation consists of two essays on international trade and trade policy, focusing on a quantitative evaluation of the causes and consequences of trade barriers and economic integration. In the first essay, I examine the role of a widely-used discriminatory trade barrier in shaping dynamic trade patterns of exporters across a range of affected and unaffected export markets. In the next chapter, I explore the heterogeneous economic determinants impacting the formation of economic integration agreements among countries, paying specific attention to the role of bilateral migration flows.

The first chapter estimates the dynamic trade effects of temporary trade barriers (TTBs), …

Loss Of Tsc2 Results In Abnormal Postnatal Neurogenesis And Striatal Hamartomas, Victoria Riley

All Dissertations

Billions of years of evolution have culminated in the most complex organ in all of biology: the brain. Its capacity to sense, store, and predict information uniquely bestows humans with the capability to generate art, music, language, and math and sets humans apart from other species. It is therefore prudent and worthwhile to study the brain and its development. A critical aspect of brain development is neurogenesis, or the production of neurons. Neurogenesis is facilitated by neural stem cells (NSCs) and is influenced by the mTORC1 signaling pathway. For NSCs to differentiate and become committed to a neuronal cell fate, …

Understanding Road Users’ Use And Misuse Of Fluorescent And Retroreflective Materials At Night, Savana King

All Dissertations

Nighttime pedestrian fatality rates in the U.S. continue to rise. Nighttime visibility aids – including retroreflective garments – can enhance the conspicuity of pedestrians to drivers at night. Yet, pedestrians rarely take advantage of retroreflectivity and instead often wear fluorescent garments that are not useful at night. This research explored whether road users’ misunderstandings of two critical principles – retroreflectivity and fluorescence – support the misuse of visibility-enhancing garments. This project also explored whether materials that combine retroreflectivity and fluorescence (“combined-performance materials”) circumvent road users’ misconceptions. Two experiments quantified observers’ expectations for how bright fluorescent, retroreflective, or fluorescent-retroreflective materials will …

Natural Language Processing Methods For Parks, Conservation, And Outdoor Recreation Research, Danielle Dagan

All Dissertations

Recent advances in technology have increased the ability to access and manipulate large textual datasets. Natural language processing (NLP), the category of machine learning related to analyzing text data, is often used to understand humans. As with any tool or technology, it is important to critically examine how NLP approaches can support scientific advancement. This dissertation critically evaluates the use of NLP and machine learning in the domain of parks, conservation, and outdoor recreation. The dissertation begins with a novel conceptual chapter, which includes a scoping review of big data methods in outdoor recreation and introduces methodological concepts, best practices, …

The Relationship Between Wisdom As Self-Transcendence And Employee Adaptive Performance: The Mediating Role Of Openness, Saeed Andaji Garmaroudi

All Dissertations

This dissertation delves into the exploration of wisdom as self-transcendence within organizational contexts. Self-transcendence is characterized by qualities such as a sense of connectedness with others and the world, moral maturity, the experience of emotions such as peace and awe, and a sense of life's meaningfulness. While self-transcendence is shown to be generally associated with positive outcomes, this dissertation takes a specific focus, aiming to empirically investigate whether these positive consequences of self-transcendence extend to organizational settings to positively impact organizationally-desired outcomes. Specifically, the study seeks to investigate the relationship between employees’ wisdom as self-transcendence and their adaptive performance. Given …

Investigating Bimanual Haptic Exploration With Arm-Support Exoskeletons, Balagopal Raveendranath

All Dissertations

The ability to judge properties like weight and length of hand-held objects is essential in industrial work. Sometimes workers use devices like exoskeletons, which can augment their ability to lift and move heavy objects. Previous studies have investigated the perceptual information available for one-handed weight and length judgments. The current study investigated how blindfolded participants bimanually heft and wield objects to explore haptic information, to perceive object heaviness or length. The study also investigated the effects of using an arm-support exoskeleton (ASE) on the perceived weight of hand-held objects. We empirically tested whether people wield and manipulate objects differently, depending …

Optimizing Laying Hen Behavior, Bone Health, And Welfare Through Environmental And Nutritional Enrichments, Mallory Anderson

All Dissertations

The objective of this dissertation was to evaluate the impact of environmental and nutritional enrichments on the behavior, bone health, and welfare of Hy-line brown and Hy-line W-36 laying hens. Laying hens are prone to experiencing a progressive increase in bone fragility due to the ongoing mobilization of calcium from the bones for eggshell formation. Over time, this increases their susceptibility for bone fracture, which is a welfare concern. Prior research suggests that exercise, especially during the developmental stage, can aid in minimizing bone fractures by strengthening muscles and increasing bone mass. Furthermore, nutrition plays an integral role in laying …

Engineering Multifunctional Silicon Nanostructures From Biorenewable Cellulose Nanocrystals, Nancy Chen

All Dissertations

The imperative search for alternative materials to address the pressing demand for advance energy storage is underscored by the escalating environmental predicaments. Lithium-ion batteries (LIBs) with graphite anodes have become the benchmark in energy storage; however, they are approaching a saturation point in terms of energy density. Silicon emerges as a promising contender to supplant graphite, owing to its profuse availability, cost-effectiveness, and impressive specific capacity of 4200 mAh g^-1. By integrating silicon anodes, LIBs stand to undergo a radical transformation, markedly diminishing in weight and size, thus heralding a novel wave of compact, lightweight energy storage systems. …

To The Torus And Beyond: An X-Ray Study Of Agn Tori Morphology, Andrealuna Pizzetti

All Dissertations

Active Galactic Nuclei (AGN) are among the Universe's most energetic and powerful objects, fueled by an accreting supermassive black hole (SMBH) at the host galaxy's center, surrounded by a toroidal structure of dusty gas. Ultraviolet photons arising from the accretion disk get up-scattered to X-rays via inverse Compton scattering by hot electrons close to the accretion disk. Being produced in the very center of the AGN, X-ray photons are powerful messengers that probe the physics of the accretion system and the matter in the surroundings. The torus, formerly considered homogeneous, appears to be a more complex structure of clouds with …

The Impact Of Mixed-Reality Simulation On The Knowledge And Practice Of Collaboration Skills Of Preservice Special Education Teachers, Samantha Scott

All Dissertations

Collaboration is an essential skill for a special education teacher's (SETs) success in developing individualized education programs (IEPs) to ensure that students with disabilities have access to equal educational opportunities. Collaboration occurs when members of an inclusive learning community work together as equals to meet a student’s individual needs. Unfortunately, preservice SETs are often provided with little instruction during their coursework and are not given the opportunity to attend IEP meetings in field placements. Many teacher education programs provide only a select number of opportunities for preservice SETs to practice and apply collaboration skills, leaving teacher candidates feeling underprepared to …

Engineering Team Success: Evaluating Perceptions Of Teamwork Processes And Emergent States Effects On Team Outcomes, Lauren Kistler

All Dissertations

The increasing reliance on teams in modern organizations demonstrates the value and relevance of teamwork in the professional world (Porter et al., 2003). Despite the substantial amount of team research focused on team effectiveness (Mathieu et al., 2008), further investigation is warranted to provide more nuanced insight into team dynamics. The present study examined perceptions of team processes and emergent states to assess how they impact perceptions of team satisfaction and potency. Perceptions of strategy formulation, role clarity, team monitoring and backup, monitoring goal progression, coordination, trust, psychological safety, team potency, and team satisfaction were measured with a sample of …

Selected Topics On Sequential Designs For Decision Making, Caroline Kerfonta

All Dissertations

This dissertation is comprised of three parts. The first proposes a sequential approach to determine the experimental setting with the minimum variance (Kerfonta et al., 2024). Two acquisition functions are developed to assist developing the approach. Theoretical results along with a case study using data from crystallization experiments is conducted to show the ability of the proposed method to correctly select the experiment with the minimum variance. The second and third parts propose adaptations to the Bayesian optimization algorithm using transformed additive Gaussian processes (TAG) as the surrogate model. The goal of using the TAG framework is to decompose the …

Multi-Scale Modeling Of Selective Laser Sintering: From Manufacturing Process And Microstructure To Mechanical Performance In Semi-Crystalline Thermoplastics, Cameron Zadeh

All Dissertations

Selective laser sintering is an additive manufacturing process that opens many design possibilities but is limited in its reliability and reproducibility. Numerical simulations validated by experimental data yield insights into the process and resulting part properties, allowing users to make more informed decisions. In this dissertation, a model for the process and microstructure is developed and validated, followed by a coupling to mechanical models to predict part performance. Further developments include a new addition of a reaction kinetics model to the process model to describe the interplay between thermal degradation and melt pool properties, and an exploration of the parameter …

Experiences Of Vertical Transfer Students In The Department Of Biological Sciences With The Transfer Credit Process: A Phenomenological Study, Laura Love

All Dissertations

The purpose of this interpretive phenomenological study was to highlight the experiences of undergraduate STEM vertical transfer students. Through the lens of Schlossberg’s Transition Theory, this study sought to better understand how students make sense of the transfer credit process and which support structures facilitated their understanding. Semi-structured interviews were conducted using qualitative methods with eight biological sciences and vertical transfer students currently enrolled at a large public four-year land-grant research institution in the Southeast United States. All participants had successfully transferred from one of 16 technical colleges within the state. Using interpretative phenomenological analysis, three themes were identified. This …