Digital Commons Network^™

The Impact Of Mathematical Justifications On Conceptual Understanding, Jessica Raley

Theses and Dissertations

Mathematical justifications offer an approach to which students deepen and extend their mathematical thinking. This process has the potential to enhance students’ conceptual understanding. Mathematical practices and process standards ask students to use critical thinking skills to justify their reasoning, but this is usually seen as proofs in high school geometry. This convergent mixed method research study aimed to increase students' use of writing mathematical justifications and investigate the influence of this practice on mathematical and conceptual understanding. Eleven eighth-grade students participated in the study conducted in the Midwest United States. Data were collected from semi-structured interviews, students’ artifacts of …

The Northern View Of The Southern Shore: Experience, Reconciliation, And Commemoration In Postbellum Charleston, South Carolina, Michael Edward Scott Emett

Theses and Dissertations

This dissertation explores the experiences and commemorative practices of nearly 200 northern passengers in Charleston, South Carolina, as they attended the flag reraising ceremony at Fort Sumter on April 14, 1865, and then organized the Sumter Club to celebrate that event annually. While some has been written about postwar Charleston during the first half of 1865, and a little more has been published covering this flag ceremony, the Northern view and their experiences with each have not been investigated, nor has anyone written an account of this club. This dissertation utilizes the theory and methodology of the history of experience, …

A Discussion Of The Tubman Arias From The Opera Harriet Tubman: When I Crossed That Line To Freedom, Mahari Allene Marie Freeman

Theses and Dissertations

Nkeiru Okoye (1972-) is an American composer of operas and orchestral works whose concert and theatrical compositions have gained extensive recognition in recent years. Harriet Tubman: When I Crossed that Line to Freedom is Okoye’s most well- known opera for which she composed the music and penned the libretto. Through her compositions, Okoye bravely addresses political and racial issues and tells the stories of well-known Black figures, such as Harriet Tubman.

Harriet Tubman (1822-1913) was a prolific American hero that led runaway slaves toward freedom. For approximately a decade, she risked her life traveling to and from the South to …

The Study And Development Of Autonomous Scarf Repair For Composite Structures: A Focus On Advanced Air Mobility Vehicles, Stephen Hilton

Theses and Dissertations

“I’m sorry I haven’t been able to truly give you a solution to thermoplastic repair” – Arnt. Director GKN Global Tech Center, 2023

The aerospace industry has a prevalence of composite materials due to their outstanding benefits to the mechanical properties of structures while serving to reduce the overall structure weight. With the development of the Advanced Air Mobility market, there is an anticipated growth in the number of composite structures. Also, with the manufacturing environment of the 21st century, these composite structures are more and more being made using thermoplastic composites that can be recycled at the end of …

Simulation Study On Count Data Based On Double Poisson Distribution, Chao Ma

Theses and Dissertations

This thesis delves into the double Poisson distribution. Regression based on the double Poisson distribution, as proposed by Efron in 1986, offers an alternative approach that allows for more accurate regression models when dealing with discrete data that exhibit either over- or under-dispersion compared to the Poisson distribution. In this thesis, two methods of calculating the exact double Poisson density are compared: one utilizes the exact probability with the normalizing constant c(mu, theta) by definition or the “finite sum” method, while the other employs an approximation of the normalizing constant c(mu, theta). Furthermore, a simulation was …

Three Essays On Financial Institutions And Financial Intermediation, Xinxin Zhang

Theses and Dissertations

In the first essay, I examine the trading relationship between the manager of a collateralized loan obligation (CLO) deal and the borrowers and/or lenders of the underlying portfolio of the CLO deal. I investigate how these relationships affect the structure and pricing of CLO deals. I find that a stronger relationship between a CLO manager and either borrowers or lenders of loans in the underlying portfolio leads to a smaller equity tranche in the CLO deal and a lower yield spread of the AAA tranche, on average. These results suggest that the CLO manager uses private information from trading relationships …

Transcending The Family-Teacher Partnership: Utilizing Teaching Methods And Digital Platforms Proven Effective During The Pandemic, Amanda Katherine Mcclain

Theses and Dissertations

The unprecedented challenges during the COVID-19 pandemic led teachers to innovatively shift their teaching methods. These pioneering practices inspired this study’s Elevated Family-Teacher Partnership intervention to provide equitable guidance and communication for all families. This dissertation, in practice, measured the effects the intervention created in a first-grade classroom setting in Hanahan, South Carolina. A mixed-methods research design analyzed the intervention's effects on the family-teacher relationship and each child’s academic achievement. The data indicated increased parental efficacy, engagement, and academic growth during the 12-week intervention for all families participating.

Improving Equity In Communication: Building Collaborative Partnerships Between Teachers And Spoken Language Interpreters, Angela J. Rush

Theses and Dissertations

In today’s increasingly diverse educational landscape, equitable communication is essential for fostering meaningful parent engagement and ensuring all students have an equal opportunity for a comprehensive education. However, language barriers can pose significant challenges for English Learner/Emergent Bilingual students and parents in the educational context. This improvement study underscores the crucial need for educational systems to address language barriers through targeted support mechanisms, such as quality language access services. The study draws upon the principles of improvement science to design, implement, and examine the transformative potential of a professional development program to enhance collaboration between teachers and interpreters and inform …

Second-Grade Students’ Lived Experiences During Formal And Informal Music Learning Activities, Celina Liana Reed

Theses and Dissertations

Historically, elementary music educators have led their classrooms using predominantly formal, teacher-led activities. Recently, music educators have allowed students to organize their own informal music learning activities. Few researchers have examined elementary students’ lived experiences during formal and informal music activities. My education and 9 years of early childhood and elementary music teaching experiences contribute to my research qualifications. The purpose of this research was to examine my second-grade students’ lived experiences during formal and informal music learning activities. Following were the guiding research questions: (a) What do second-grade students think and how do they feel during formal music learning …

A Study Of Direct Sensitivity Method Solving Optimal Control Problems With Single And Multiple Time Grids With An Application In An Experimental Hybrid System, Hainan Wang

Theses and Dissertations

Computational methods for optimal control are important for dealing with bottlenecks in industries. By implementing optimal operation strategies obtained from the computational methods into dynamic systems, objectives such as saving energy, reducing cost, exploiting potential, and improving efficiency can be achieved. Computational methods for optimal control have been used in a broad range of disciplines, including aeronautics and astronautics, oil and chemical engineering, power systems, clean energy, biomedical engineering, economics, and management. Due to the great application value of optimal control, its computational methods have drawn worldwide attention. Direct methods are most effective in computational methods for optimal control. Direct …

The Impact Of A Professional Learning Community On Direct Care Staffs’ Self-Efficacy In Promoting Social—Emotional Learning Skills, Tiffany Drahota

Theses and Dissertations

This qualitative collective case study documented three early childhood educators’ participation in a professional learning community (PLC) focused on promoting children’s social–emotional skills. Particularly, it illuminated the impact of a PLC on the direct care staffs’ self-efficacy related to the promotion of the specified skills. Self-efficacy strongly predicts a person’s willingness to persist through challenges, attempt a new task, and exert sufficient effort toward completion. Self-efficacy is highly influenced by social factors including peer observations and discourse (Bandura, 1977). PLCs are a form of professional development that focuses heavily on social interactions such as communication, collaboration, and group goal setting …

New Techniques For Studying Ocean Eddy Dynamics In The Arabian Sea And The Gulf Of Mexico, Paul Andrew Ernst

Theses and Dissertations

Coherent vortices known as eddies are ubiquitous throughout the world’s oceans and are responsible for modulating regional climates via the transfer of heat, momentum, and salt. Two regions where eddies are particularly prominent are the Arabian Sea (AS) and the Gulf of Mexico (GoM). This dissertation advances the study of eddies in these regions by developing and employing new techniques in conjunction with remotely sensed data and high-resolution ocean models. These models focus particularly on lesser-studied eddy components at the subsurface and the submesoscale (below 25 km in radius).

The first component of this dissertation focuses on the Lakshadweep High …

The Importance Of Sense Of Community In Recovery For Individuals Living With Serious Mental Illness, Natalia Gomez

Theses and Dissertations

People with serious mental illness face a variety of barriers to participating in community life. Some of these barriers include limits in social functioning which can then affect social relationships and life satisfaction (Sanchez et al, 2016). Devaluation based on mental health status is an important barrier to address due to its connection to stigma and relationships. The more an individual fears that they will be undervalued and discriminated against, the more they may fear interacting with others. They may hide that they are in mental health treatment or avoid social encounters that they consider as possibly rejecting. These behaviors …

Planning And Adapting In The Design Process, Lindsay Kay Wilkinson

Theses and Dissertations

The costume design and technology program at the University of South Carolina requires that students extensively learn each area of the profession. The largest growth-inducing experiences and some of the highlights for me were the opportunities to adapt when challenging changes or unexpected twists and turns arose with each production or project. Through my time at the university, I have gained a better understanding of balance between time and stress management, a system for understanding and completing costume-based research, digital rendering, I have improved the communication of my ideas with a director, working out a cohesive look with a production …

Crystal Plasticity Modeling Of Heterogeneous Microstructure Of Additively Manufactured Metals, Md Mahabubur Rohoman

Theses and Dissertations

Additive manufacturing (AM) has emerged as a promising technique in the manufacturing industry for producing complex metal components as it provides shape freedom and simplistic processing chain.

Powder bed fusion is the widely used AM technique that uses laser or electron beam as the energy source to melt the metal powder and deposit it in a layer-by-layer fashion. While doing so, the previously molten layers are constantly are in re-heating and re-cooling processes which end up creating an intricate solidification for the deposited layers. Due to the complexity involved in the thermal cycles for the solidification process, columnar grains develop. …

High-Rate Production Of Thermoplastic Composite Structures For Urban Air Mobility Vehicles Utilizing Fastener-Free Assembly Methods, Robert H. Shumpert

Theses and Dissertations

This study aimed to develop a manufacturing plan for a Thermoplastic fiber-reinforced propeller blade for urban air mobility applications. This propeller blade offer a few unique challenges including the complex geometries of the blade. Another important aspect of the blade is using fusion bonding methods to increase the strength of joints in the product while reducing weight from fasteners and adhesives. This manufacturing process will be validated by producing a physical demonstrator to ascertain the efficacy of the manufacturing techniques used. First, the techniques that will make up the manufacturing plan must be selected. To do this, a review of …

The Effects Of High Fat Diet On Lipid Deposition In Skeletal Muscle, Alexander Huss

Theses and Dissertations

By the year 2030, almost 50% of adults in the United States are expected to be obese. Obesity has been shown to increase the risk of several chronic metabolic diseases, several cancers, and is associated with impaired skeletal muscle function and metabolism. Despite this, little it is known about the role of altered muscle lipid homeostasis, lipid droplet dynamics, and lipid droplet-mitochondrial interactions in contributing to muscle dysfunction in obesity. Therefore, we sought to investigate the impact of high-fat diet induced obesity on overall skeletal muscle lipid deposition, intramyocellular lipid droplet content and morphology, and lipid droplet-mitochondrial contact. Male C57/BL6 …

Learning Through Discourse: Impacting Fractional Understanding Through Virtual Discourse, Laurie A. Gentry-Goodale

Theses and Dissertations

There is a strong need for fifth-grade students to become proficient in mathematical problem-solving using fractional computations because it will have a lasting impact on student achievement. Traditionally, mathematics is taught inside a brick-and-mortar classroom, grounded in rote memorization of facts, rules, and formulas. In recent years, more elementary students have enrolled fully in online learning environments, which emphasize on students becoming problem-solvers, specifically in fractional computation. The NCTM strongly encourages using mathematical discourse as an instructional method but employing mathematical discourse, but its applicability to online math learning is not well understood. This study addressed students' problem-solving skills, mathematical …

The Effects Of Management’S Esg Disclosure Strategy And Voluntary Esg Assurance On Investment Judgments, Macy Knutson

Theses and Dissertations

Many investors desire to integrate a company’s environmental, social, and governance (ESG) performance into their investment decisions. Accordingly, most companies now disclose at least some ESG information in annual sustainability reports. However, little regulation exists over ESG reporting, creating a well-acknowledged agency problem for investors and making trust vitally important to investment. In this study, I examine two mechanisms which may facilitate trust amongst ESG investors: Management’s ESG disclosure strategy and ESG assurance. Contrary to traditional conceptions of persuasion theory, I find ESG investors reduce investment in response to more transparent negative disclosures when the ESG report is not independently …

Fourth-Grade Music Students' Perceptions Of Music Improvisation: An Ethnographic Case Study, Ashley Elizabeth Cobb

Theses and Dissertations

I facilitated this ethnographic case study to better understand potential successes and difficulties music improvisation presents in music facilitating and learning from the student perspective. The purpose of this research was to examine my fourth-grade students’ perceptions of music improvisation via improvisatory music circles using the following guiding research questions. Regarding 30-minute improvisatory music circles: 1) How do fourth-grade students (a) define music improvisation, (b) respond to facilitator-selected improvisatory music activities during improvisatory music circles, and (c) make decisions while participating in improvisatory music circles? 2) How did those students’ perceptions change throughout data collection?

I collected data from five …

Layers Of Support: Cognitive, Psychological, And Social Factors That Contribute To Success In The High School-To-College Transition, Paige Cristine Mckeown

Theses and Dissertations

The future of individual and societal progress is largely dependent on students’ success following completion of K-12 education. For most traditionally aged students, this entails a journey into higher education at colleges and universities. This transition is rife with pitfalls that may lead students to stop out, fail out, or make inadequate progress towards completion – which further compounds social, psychological, financial, and personal challenges they may be facing. However, the challenges that contribute to these outcomes can be addressed and interventions can be designed to best support students in transition. This dissertation addresses these factors through a thematic literature …

Teacher-Researcher As Indicator: Developing A Third Space For Newcomer Youth In A Secondary Classroom, Gabriel Andres Chen Rodriguez

Theses and Dissertations

This paper was written to reveal answers to the Problem of Practice identified at the site school as it has experienced a steady growth in newcomer multilingual learners. This minority-majority group of students at the school have underperformed academically despite the use of varied teaching strategies. In an effort to help newcomer students through intentional sheltered instruction, I held the believe that as a former multilingual learner now serving as their classroom teacher, I could be an indicator for the classroom allowing me to realize there may be hopes, needs, and attitudes that were hidden from current pedagogical practices.

In …

The Impact Of An Integrative Stem Educational Approach On Wonder Within A Catholic School, Carrie Kavanaugh Brun

Theses and Dissertations

This action research study explored the challenge of evoking wonder among fourth graders within one Catholic School, using an integrative STEM educational approach. Cognitive constructivism, social constructivism, and situated learning theory guided this qualitative case study. Twenty-one students learned about the Fibonacci sequence and Golden Ratio while engaging in nature walks, group work, and journaling. Students were tasked with creating a 3D design, utilizing the Engineering Design Process. Qualitative data were generated through student journals, practitioner reflective notes, and classroom observations and videos. Analysis and interpretation of the data indicated that (a) nature evokes wonder, (b) students create learning through …

The Burden Of Belonging: A Case Study Of Black Students' Experiences With Linguistically Code-Switching Between Discourse Communities, Tanner Charles Slagle

Theses and Dissertations

This qualitative action research case study is focused on better understanding the complex and intricate nature of code-switching among Black students. In today’s educational climate, many Black students find themselves speaking one way with their closest friends and family members in front of the swing set and television and another way with their classmates and teachers in front of the blackboard. Due to systemic racism, schools today tend to place the burden of belonging on the youngest children of color rather than on the seasoned, and often privileged, adults who work with them. This dissertation is largely rooted in Gee’s …

Impacts Of Covid-19 And Taliban Takeover On U.S. Afghan Refugee Women’S Mental Health: A Socio-Ecological Approach To Resilience Resources, Atefeh Aghaei

Theses and Dissertations

In response to the escalating global refugee crisis, intensified by ongoing conflicts and environmental changes, this dissertation research focuses on the mental health of Afghan refugee women in the United States (U.S.), particularly in the context of the COVID-19 pandemic and the 2021 Taliban takeover. With over 114 million people displaced globally, Afghan refugees, notably women, encounter heightened mental health risks due to violence, deprivation, systemic persecution, and the challenges of migration. This vulnerability is exacerbated by recent mass traumatic events, including the pandemic and political upheaval in Afghanistan. Our study, conducted through semi-structured interviews with Afghan refugee women and …

The Intersection Of Teachers’ Professional Learning Needs And Instructional Leadership: An Investigation Of Administrator-Facilitated Coaching Cycles, Richelle Battles

Theses and Dissertations

The primary purpose of this action research study was to examine the impact of a school administrator–teacher coaching relationship on the professional practice of both the administrator and the teacher. Through a qualitative approach, the study followed the experiences of three coaching pairs (i.e., administrator/coach and teacher/coachee) as they engaged in a 6-week coaching cycle. Data were collected through interviews, weekly reflections, observations, and coaching logs. Results revealed teachers value professional learning opportunities that prioritize their individual needs as practitioners and give them access to educators who demonstrate expertise related to that need. The data also revealed, when serving in …

Unraveling The Structure And Star Formation History Of Polar Ring Galaxies, Kyle Lackey

Theses and Dissertations

Polar ring galaxies (PRGs) are a fascinating subgroup of early-type galaxies (ETGs) consisting of a central host galaxy - typically E/S0 - surrounded by a ring of gas, dust and stars orbitting perpedicular to the major axis of that host. In order to estimate physical properties and origins of five such objects taken from Whitmore's 1990 PRC catalog, we conduct a photometric study in optical and infrared wavebands. Data are taken from SDSS, GMOS-S, HST-WFPC2, and SST-IRAC. Each object was decomposed into a host galaxy bulge, host galaxy disk, and polar ring, and each component was fit with a Sersic …

Unraveling The Impact Of The School-To-Prison Pipeline: Investigating Racial Disparities In Disciplinary Practices, Zelexis Croffie

Theses and Dissertations

This action research study sought to examine ways to narrow the racial discipline gap in South Carolina’s elementary schools. Employing both the Critical Race Theory and BlackCrit in schools as the theoretical frameworks, the research delved into the narratives of teachers in grades 3^rd through 5^th, exploring their encounters with school-based disciplinary practices. The study integrated Social-Emotional Learning and Culturally Responsive Teaching to ultimately uncover implicit biases held by teachers that positioned Black students as less innocent compared to their White counterparts. The primary focus was to investigate the relationship between teachers’ inequitable disciplinary practices and the …

Examining Systems To Improve Third Grade Literacy: Focus On Schools With High Poverty Index, Brenda Kelley

Theses and Dissertations

This improvement project was designed to ensure students enrolled in elementary schools with a high poverty index received literacy instructional strategies that promoted literacy achievement. When analyzing Graham County School data, I noticed third-grade students attending high poverty elementary schools were not achieving literacy success at the same rate as third-grade students attending low poverty elementary schools. An improvement team, consisting of myself, administration, and teachers at a high poverty elementary school implemented the improvement science framework to further study the root causes of this problem. Utilizing the six principles of the improvement science framework, problem focused and user centered, …

Eco-Domestic Femininity: The Collapse Of Domestic And Wild In Southern Women’S Writing, Christina Xan

Theses and Dissertations

When the Agrarians set out to assert their definition of southern in I’ll Take My Stand (1930), they planted roots deep in the ground of the south that slowly wrapped its tendrils around its descendants. In the years that have followed, southern women have had to push back against these limiting boundaries. Their individual stories are linked by the communal lineage of the south, specifically the binary of domestic and wild. Traditionally, southern women have had to stay in the boundaries of the home, cultivating domesticity, ordering the space, and warming the hearth. The land itself, posed as opposite from …