Digital Commons Network^™

Object Classification, Detection And Tracking In Challenging Underwater Environment, Md Modasshir

Theses and Dissertations

The main contributions of this thesis is the applicability and architectural designs of deep learning algorithms in underwater imagery. In recent times, deep learning techniques for object classification and detection have achieved exceptional levels of accuracy that surpass human capabilities. However, the effectiveness of these techniques in underwater environments has not been thoroughly researched. This thesis delves into various research areas related to underwater environments, such as object classification, detection, semantic segmentation, pose regression, and semi-supervised retraining of detection models.

The first part of the thesis studies image classification and detection. Image classification is a fundamental process that involves assigning …

Using Landscape Archaeology To Gain Insight Into The Human Experience During The Late Woodland And Mississippian Periods In South Carolina’S Pee Dee River Basin, Noah Safari

Theses and Dissertations

People move through and use the landscape in the ways they do for myriad reasons. The goal of this thesis was to elucidate how people viewed and settled in the Pee Dee River Basin area during the Late Woodland and Mississippian Periods in South Carolina. Framing my research with a landscape archaeology focus, by considering sites within a larger region or landscape, we can inhabit the “taskscapes” of the past and gain an understanding of the past (Ingold 1993).

To do this, I used the methodological lens of settlement ecology “to build a balance sheet of varying priorities (Stone 1996:8) …

(Re)Imagining Decolonial Cookbooks After Deforestation, Kamran Shams

Theses and Dissertations

Food, like most else, is fundamentally changed by colonization. It is not just the aftermath of colonization, the settlement, that changes food—it is the act of colonial infiltrating itself. Such is the case made by Fernando Ismael Quiñones Valdivia in “Colonial Imaginations: Solitude in the Cartas y Relaciones of Hernán Cortés”—though not for food but for colonized societies broadly. More specifically, he contends that a new epistemological possibility arises when colonizer regards land as an object to be conquered, which precedes the epistemological articulation of subject/object divide. His article supplies a framework for thinking about coloniality so that a close …

Melding Of Traditions: African American Cultural And Learned Style Topics In The Music Of Roger Dickerson, Kenneth Green Ii

Theses and Dissertations

Roger Dickerson, born in 1934, is an African American composer, educator, and pianist from New Orleans. His compositions include multiple works for band, orchestra, voice, choir, chamber ensembles, and solo instruments. Dickerson, a two-time Pulitzer Prize nominated composer, published only one work for wind band, Essay for Band in 1958. Unfortunately, this work was rarely performed in its first sixty years, and it is not known by many band directors. In recent years, there has been a movement to program music by composers from historically marginalized and underrepresented communities. Essay for Band has benefited from this movement which also seeks …

Classifying Floor Accelerations For Gait Estimation And Detection, Jean Michel Franco Lozada

Theses and Dissertations

Structural vibrations are traditionally used to learn about structural systems, such as determining the dynamic characteristics of a structure and evaluating its structural performance under certain dynamic loads. Recently, researchers have proposed the use of structural vibrations to know more about the occupants of the structure in addition to the structure itself. One example of such would be to determine when a person falls, or to identify the location of a person walking in a building. Using structural vibrations to study occupants can be directly applicable to many fields, ranging from healthcare to security applications. One powerful use of structural …

Tax Client Goals, Regulatory Pressure, And Professional Decision-Making, Spenser G. Seifert

Theses and Dissertations

Drawing on goal theory, I illuminate how client preferences become internalized goals for tax professionals and how these client goals influence the motivated reasoning and ultimate decision-making of tax professionals. Using this theoretical framework, I then utilize an experiment to explore how the presence of salient situational factors – goal specificity, goal progress, and regulatory pressure – influence tax professionals’ decision-making. The results suggest that, as a result of their roles as both client advocates and CPAs, tax professionals default to non-specific “do your best” goals regardless of client preference specificity. Additionally, I find that increased regulatory pressure may curb …

Reflections Of Chinese Opera In Contemporary Chinese Piano Repertoire: A Cutural, Analytical, And Pedagogical Guide, Mengyu Song

Theses and Dissertations

Over 5,000 years, Chinese opera has been inspired by many imperial dynasties, regions, and ethnic cultures, making it a unique reflection of Chinese culture. Chinese composers have incorporated traditional Chinese opera in piano compositions to express cultural identity and artistic significance. This music has a broad and profound cultural significance, fostering cultural interchange and understanding and presenting a diverse and inclusive musical experience for non-Chinese students and musicians.

This research study provides a comprehensive overview of Chinese traditional operas, vocal technique and instrumentation, the development of piano music in China, and corresponding piano literature in progressive difficulty for early-intermediate to …

Advances In Chalcogenide Crystal Growth, Anna Berseneva

Theses and Dissertations

Chalcogenides are the cornerstone of the semiconductor and thermoelectric industries and are up-and-coming materials for superconductors, catalysis, and battery applications. Challenges in the synthesis of those materials emerge from the chalcogen’s volatility and the tendencies of chalcogenide to react with even trace quantities of oxygen. Nonetheless, many techniques have been applied to the growth of chalcogenide single crystals, which are convenient for structure determinations and intrinsic property measurements. This dissertation will detail synthetic strategies applied to the crystal growth of novel chalcogenide materials via molten flux preparation (Chapters 2, 4, and 5), hydrothermal synthesis (Chapter 1 and 3), and single-crystal-to-single …

Thermodynamic Modeling Of Uranium Nitride With Select Actinides And Fission Products, Eric Reece Mcmanus

Theses and Dissertations

Uranium mononitride fuel is being investigated as a potential nuclear fuel for a Westinghouse lead-cooled fast reactor due to factors such as its high uranium density, high melting point, and favorable thermal conductivity. To obtain an understanding of the thermochemical behavior of UN fission products and minor actinides, thermodynamic data was obtained from various resources to create a database to represent the behavior of the fuel. This database was used to generate an Ellingham diagram to represent the relative thermodynamic stability of the phases over the reactor temperature range. A simulation was run computing the equilibrium state of the fuel, …

A Comprehensive Review And Meta-Analysis Of Breast Cancer Gene Expression Data: Understanding The Molecular Complexity Of A Silent Epidemic, Ifeanyichukwu O. Nwosu

Theses and Dissertations

Breast cancer is the most frequently diagnosed cancer type and the leading cause of cancer death; it accounts for 23% of total cases and 14% of deaths, with over 2 million new cases diagnosed and 600,000 deaths in 2020. This is a huge public health burden. Traditionally, clinical subtypes of breast cancer are defined based on a patient's immunohistochemistry profile. These profiles are determined by the combined expression status of three receptors: estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2. It has also been observed that women of African descent, more commonly present with ER, PR and …

Bass-Triadic Cadence Formulae In Melchior Neusidler’S Original Compositions From Il Primo (-Secondo) Intabolatura Di Liuto, Christopher Mcdonald

Theses and Dissertations

There was a paradigmatic shift in the discourse surrounding lute music between the early sixteenth and seventeenth centuries. The lute treatises written by early sixteenth-century German lutenists, such as Hans Judenkünig, Hanse Gerle, and Hans Newsidler, focused on technical directives that support a linear conception of music. However, lutenists active in the late sixteenth and early seventeenth century, such as Matthaeus Waissel and Jean-Baptiste Besard, describe technical accommodations for vertically conceived structures. Contemporaneously, at the turn of the seventeenth century, the discourse on bass primacy and triadic structures developed from an undercurrent, cast in the shadow of counterpoint treatises, to …

A Formative Process Evaluation Of Social Care Programming In A Health Care System Serving A Predominantly Rural State, Samuel Bethel

Theses and Dissertations

Health and social care continue to integrate, but relatively little is known about how social care is designed, implemented, and maintained across the health care continuum. This is especially true for health systems serving rural and under-resourced communities. To fill these gaps, this dissertation project applied formative process evaluation methods to a single case study of the largest health care system serving a predominantly rural state and its integrated social care programming. Data were collected from in-depth, semi-structured interviews following a purposeful and snowball sampling method among key informants for the design, implementation, and maintenance of social care programming as …

Evaluating A Web-Based System For Tracking Public Health Practice Experiences: User Perceptions, Challenges, And Recommendations For Technology Improvement, Matthew Mcgrievy

Theses and Dissertations

The purpose of this descriptive research study was to evaluate the web-based practice experience tracking system at a school of public health (SPH) at a large southeastern university. Applied practice experiences (APEs) are a key component of public health education, and schools and programs of public health in the United States must provide documentation of APEs and practice-related activities to meet accreditation standards. A descriptive research evaluation examined how users perceive and use the existing web-based system designed to document APEs in the SPH. Research questions investigated what factors influence the use of the existing system, identified challenges users face …

Developing A Hierarchical Digital Twin Framework For Dc Microgrid Implementation, Khari Sado

Theses and Dissertations

This research introduces a hierarchical digital twin framework for DC microgrids implementation, particularly those utilized in naval power systems. Unlike traditional digital twins, this hierarchical digital twin structure offers a layered perspective. Hierarchical digital twin design promotes computational efficiency by distributing computational burden across a layered configuration that integrates lower-level digital twin blocks with a system digital twin. The layered approach breaks down complex systems into smaller manageable units that can be examined individually and collectively. Central to this strategy is the adoption of a multi-domain and multi-functional technique through the integration of the digital image framework. This allows the …

Examining The Overall Impact Of Computer-Based Mathematics Instruction On Math Achievement In An Alternative High School, Jacqueline Levon Gilyard

Theses and Dissertations

Over the past decade, the United States has witnessed a remarkable surge in computer-based instruction, revolutionizing the way students learn and educators teach. This action research study aimed to investigate the overall impact of computer-based instruction on mathematics achievement in the alternative high school setting. The research design incorporated both quantitative and qualitative methods to gather comprehensive data for twenty high school students enrolled in an alternative high school setting. The quantitative data analysis involved examining pre-and post-test scores, graduation data, and final course grades to assess the effect of computer-based instruction on mathematics achievement. All of the students showed …

The Crucial Role Of The Ahr-Ilc3-Il22 Pathway In I3c-Mediated Protection Against Colitis And Associated Microbial Dysbiosis, Chandani Mitchell

Theses and Dissertations

Colitis is an inflammatory bowel disease characterized by dysregulation of the immune system that results in chronic inflammation and dysbiosis. Previously we showed that a naturally sourced aryl hydrocarbon receptor (AhR) ligand, indole-3-carbinol (I3C), was effective in the reduction of colitis-associated disease severity through innate lymphoid type 3 cells (ILC3s) in an interleukin-22 (IL-22) dependent manner. In one of our studies, we used single cell RNA sequencing (scRNAseq) analysis of colonic lamina propria cells from colitis models treated with I3C. Our results indicated that there were changes in the expressions of genes integral to IL-22 signaling when I3C was used …

Uav-Based Tracking And Following Of Railroad Lines, Keith Michael Lewandowski

Theses and Dissertations

Given the pivotal role of the railroad industry in modern transportation and the potential risks associated with track malfunctions, the inspection and maintenance of railroad tracks emerges as a critical concern. While existing solutions excel in performing accurate measurements and detection, they often rely on large, expensive, and time-consuming platforms for inspections. This project, however, seeks to solve the same problem with the use of an unmanned aerial vehicle (UAV), significantly reducing time and cost while maintaining detection capabilities. In particular, this solution is ideal for large-scale, high-level inspections following major events such as floods [6], hurricanes [7] or earthquakes …

An Assessment Of Drinking Water Equity In South Carolina: Access, Affordability, Quality, And Private Well Resources, Catherine Lippert Min

Theses and Dissertations

Universal access to good quality, affordable drinking water is a goal that has not yet been reached in the United States. Recently, national studies have investigated drinking water burdens including lack of access to complete plumbing, unaffordability, and poor quality individually. However, no study has examined all of these drinking water burdens together to identify communities facing multiple burdens. This study addresses this gap by analyzing disparities in access to complete plumbing, affordability of public water sources, and drinking water quality of community water systems in South Carolina and identifying communities that face multiple burdens. This study also provides the …

Exploring Heat Variations In Columbia, South Carolina, Michael Graeme Hohlfeld

Theses and Dissertations

As the leading cause of weather-related fatalities in the United States, the concept of heat as a hazard has been studied for decades, especially in the urban environment. Urban heat island research is limited by the fact that most investigate land surface temperature rather than air temperature and other variables that affect human comfort including humidity. This thesis utilizes a public network of weather stations in Richland County, South Carolina to investigate differences in heat between the city of Columbia, and more rural parts of the county. The study period was June, July, and August of 2022. Results indicate that …

Microchannel Slip Flow Characteristics By Time Travel After Photobleaching Velocimetry, Brandon James Sellers

Theses and Dissertations

Interfacial science follows the study of observing behavior between two or more phases of matter when in contact. For example, a liquid solution passes through a microchannel, and the walls interact with the fluid shearing along the surface. The fluid particles develop momentum changes from interfacial phenomena and slip along the wall begins to affect the fluid body. Slip flow is a name for the phenomenon, and with it, modeling velocity for the interfacial behavior demands both resolution and minimal interference. Laser-induced fluorescence photobleaching anemometry (LIFPA) works as a sound method for acquiring data on microchannel flow, but it needed …

Examining The Impact Of A Professional Learning Community On Teachers' Awareness Of Neurodiversity In The Classroom, Taylor Diane Williams

Theses and Dissertations

In this action research study, the researcher sought to explore the influence of Professional Learning Community (PLC) participation on the recognition and awareness of general education teachers on neurodiversity in their classrooms. Additionally, the study aimed to investigate the effects of the teachers’ awareness on their instructional approaches. The participants of this study hail from a variety of cultures and languages from around the world. Conducted over a six-week period in an international school in southern Germany, the participants demonstrated an enhanced understandings of neurodiversity through their engagement in the PLC sessions. The data collection tools used in the study …

Evaluating Nutrient Limitation Of Phytoplankton Growth In North Inlet Estuary, Sc, Catherine Schlenker

Theses and Dissertations

The biolimiting nutrients nitrogen (N) and phosphorus (P) are vital components of molecules essential to life. In marine systems, N:P ratios tend to follow the “Redfield ratio” of 16:1, which is often used to infer nutrient limitation of phytoplankton biomass. Traditionally, estuaries are thought to be N-limited (N:P < 16), but there have been increasing instances of P-limitation (N:P > 16) in coastal waters worldwide. Over the last few decades, nutrient loading in North Inlet Estuary (NIE) has changed such that dissolved inorganic nitrogen (DIN):dissolved inorganic phosphorus (DIP) ratios have increased by ca. 130%. This increase suggests that the estuary may be transitioning to N and P colimitation or primary P-limitation. We …

Environmental Implication Of Environmental Disclosure, Jie Lian

Theses and Dissertations

Recent environmental incidents and disasters have intensified awareness and concerns about environmental issues, making the reduction of the private sector’s environmental impact a pressing necessity. The path to better environmental performance depends on enhancing environmental disclosure. While an increasing number of firms are embracing environmental disclosure, and legislative efforts are steering towards mandating such disclosures, the comprehensive understanding of the environmental implications of these disclosures remains surprisingly limited. A significant gap exists in understanding the challenges of environmental disclosure in promoting sustainability and complex consequences in various contexts.

The dissertation aims to fill this literature gap by focusing on the …

“…She Complained…”: The Female Complaint And Voice In F. Scott Fitzgerald’S Works, Kristina Syrigos

Theses and Dissertations

My thesis explores the themes of female complaint and female voices in the works of F. Scott Fitzgerald, specifically focusing on "The Cut-Glass Bowl," "Winter Dreams," and The Great Gatsby. Drawing on J. L. Austin's concept of performative speech and Sarah Ahmed and Lauren Berlant’s explorations of the female complaint, I argue that Fitzgerald's female characters are silenced, dismissed, and punished when they express their wants, desires, and grievances. Despite their attempts to use their voices, words, and complaints to enact change in their lives, these women are portrayed as nagging and powerless, oftentimes being punished for speaking up, …

Sappho And Shakespeare: Aristotelian Views On Relationships, Catherine Corinne Reisinger

Theses and Dissertations

In Aristotle’s Nicomachean Ethics, he defines different relationships that people experience; youthful, incidental, and pure. Youthful relationships focus on strong emotions and intense passionate feelings between two individuals. Incidental relationships involve two individuals of drastically different ages, most notably mortals and deities. Pure relationships involve two individuals who are morally good and want nothing but the best for one another, showing their pure goodness. Though they lived several centuries apart, Sappho and Shakespeare display all three relationship types in their writings. Sappho showcases each type of relationship in her poetry, while Shakespeare most notably portrays all three relationships in …

Multilevel Factors Affecting Covid-19 Vaccination Among African American Communities In South Carolina, Ran Zhang

Theses and Dissertations

Background: Persistent health disparities has led to significant public health challenges, especially for African American (AAs) communities, and have been exacerbated by the COVID-19 pandemic. Achieving high population vaccination rates are crucial to controlling the virus’ spread. However, AAs have higher rates of COVID-19 infection and mortality than Whites, yet their vaccination rates remain relatively low. The dissertation aimed to investigate the multilevel factors and mechanisms that affect AAs’ vaccination behavior. The first objective is to assess the impact of the intrapersonal level factor (i.e., perceived barriers to vaccination) on vaccination behavior. The second objective is to investigate the impact …

Erodibility Of Sand-Silt-Xanthan Gum Mixtures, Edwin Kotey

Theses and Dissertations

The high frequency of earthen embankment failure recorded during floods has led to the general rule that embankments should not be overtopped. This notwithstanding, overtopping cannot be entirely avoided particularly during extreme events, such as winter storms and hurricanes. Reducing soil erodibility is thus fundamental to prevent and control disasters caused by embankment failure. Recent studies have explored the use of environmentally friendly additives, such as biopolymers, to improve soil properties. Geotechnical tests have shown that biopolymers can effectively increase soil strength, but little is known about biopolymer-treated soil resistance to erosion by flowing water. Results of flume experiments to …

Examining The Effects Of Physical Education Teacher Behaviors On Actual Motor Competence And The Associations Among Actual Motor Competence, Perceived Motor Competence, Enjoyment In Physical Education, And Physical Activity In Early Childhood, Unjong Lee

Theses and Dissertations

Physical Education (PE) can be considered a black box when the interactions between the teacher and the students are unknown. PE as the black box has been embedded in the process-product paradigm. PE teachers can be critical role models for fostering students’ actual motor competence (AMC) because students can learn from what they observe from teachers’ behaviors. Additionally, AMC, perceived motor competence (PMC), and enjoyment in PE can be potential factors to increase students’ PA in schoolbased setting. Therefore, this dissertation consists of two studies that examine PE teacher behaviors, AMC, PMC, enjoyment in PE, and PA in early childhood …

Sustainability Of A State, District, And School Professional Learning Community, Gertrude Jones Black

Theses and Dissertations

In this study, I explored professional learning community sustainability at the school, district, and state levels. Researchers have found that professional learning communities are a means of effective professional learning for teachers and a vital factor in increased student achievement. However, there is very little multi-case research involving the sustainability of professional learning communities. This multi-site case study extends the research on this topic. I used qualitative methods to clarify my understanding of the phenomenon of sustainability of PLC communities. I investigated how the PLC members’ stances and actions, perceptions of school culture, and commitment to lifelong learning impacted a …

Controlling Properties Of Hybrid Materials: Leaching Kinetics And Electronic Structure, Anna Berseneva

Theses and Dissertations

Hybrid materials are a unique class of materials that merge the properties of organic and inorganic building blocks. These materials are at the frontier of material science due to their wide modularity and applicability in numerous fields, ranging from catalysis to nuclear waste treatment. Unprecedented tunability of physical properties via changes in organic, inorganic moieties and their connectivity, enables for hybrid materials to address current challenges in the materials’ applications improving energy landscape.

The presented work consists of six chapters where the synthesis and design of new hybrid materials, fundamental understanding of electronic behavior and its modulation in organic-inorganic materials, …