Digital Commons Network^™

What Is Reasonable? Effects Of Different Jury Instructions In A Fatal Police Use Of Force Case, Katherine M. Kaylor

College of Graduate Studies: Theses & Dissertations

Since the Supreme Court case Graham v. Connor, police officers charged with misusing force on duty are judged against a hypothetical reasonable officer. Graham focuses on split-second decisions police officers must make and states police should not be judged with the benefit of hindsight. California goes beyond the subjective language of Graham and instructs jurors to look at the totality of circumstances, meaning they must consider all events and actions of an officer and citizen when assessing cases. The current study investigated whether type of instruction (Graham vs. California) affected mock jurors’ verdicts. Participants in the California condition …

Motivating Students Through Problem-Based And Project-Based Learning, Dennis J. Moore

College of Graduate Studies: Theses & Dissertations

ABSTRACT

As educators, motivating students can be a difficult task.Sixteen eighth-grade students discuss their perceptions of what makes educational programs motivating. In teacher-centered classrooms, teachers lecture while their students take notes, quizzes, and tests and practice memorization skills in preparation for high-stakes testing. Is this a fair assessment of a student's knowledge, and does this type of instruction fulfill students’ needs for a successful future? Research for this case study focused on students' perceptions of an agricultural program that utilizes problem-based and project-based learning with a sustainability focus.

In problem-based learning (PBL) classes, students are given real-world problems and asked …

Survey And Identification Of Entomopathogenic Fungi In Millipede Species In Coastal Georgia, Kristin L. Campbell Bailey

College of Graduate Studies: Theses & Dissertations

Entomopathogenic fungi are well-known, species-specific pathogens of a wide diversity of insects that infect, manipulate, and kill their insect hosts to complete their life cycle. Recently in Savannah, Georgia, millipedes belonging to the genus Eurymerodesmus were observed exhibiting pre-death climbing behaviors associated with pathogenic fungal infection. Dying millipedes summited vegetation and subsequently died in elevated positions along edge habitat transitioning a recreational field and forest. Upon inspection, fungal structures found emerging from dead millipedes anatomically resembled Arthrophaga myriapodina, which is the first documented entomophthoralean fungus to infect millipedes. The goal of this research was to obtain species-level identification of the …

Becoming, Being, And Belonging: Exploring The Intersections Of Black Manhood, Sexuality, And Rural Education Through Self-Study Using Ethno-Dramatic Renderings, Javious Canty

College of Graduate Studies: Theses & Dissertations

Studies that center Black male teachers often lack nuance and tend to look at them as a monolithic group. This dissertation uses Quare theory (Johnson, 2001), African American Male Theory (AAMT) (Bush & Bush, 2013), along with self-study methodology represented through fictionalized ethno-dramatic scenes to examine the teaching practices of a queer Black male teacher in a rural context and the impact he has on the achievement of his rural Black students. One finding from this study is that breaking through Quare barriers using community, resilience, and cultural awareness leads to success. Another finding is that rural spaces carry educational …

Experiences Of Special Education Teachers During Covid-19: An Interpretative Phenomenological Analysis Sheds Light On Learning Loss Among Young Students With Disabilities, Cassidy A. Stine

College of Graduate Studies: Theses & Dissertations

Many aspects of teaching and learning for students with disabilities (SWDs) were drastically altered during the height of COVID-19. While many students experienced learning gaps or loss related to unprecedented and abrupt changes to their education, young SWDs in rural areas were faced with unique challenges. The purpose of this Interpretative Phenomenological Analysis (IPA) study was to gain knowledge regarding teaching experiences/perceptions of rural Georgia K-5 special education teachers during the height of COVID-19 that shed light on learning loss among SWDs. The researcher was specifically interested in knowing more about teachers’ perceptions of academic and social-emotional learning loss as …

Comparative Analysis Of Lidar And Close-Range Photogrammetry Techniques For Inspection Of Mse Walls In Two Georgia Bridges, Md. Mehrab Hossain

College of Graduate Studies: Theses & Dissertations

Mechanically Stabilized Earth (MSE) retaining walls are durable, settlement tolerant, easy to install, and present cost-effectiveness, in highway bridges. Nevertheless, the cost of repairing MSE walls is high, and it is crucial to have an accurate, quantitative, and scalable inspection method for early detection of potential problems. This study aims to analyze and evaluate undesired displacements that may affect these walls over time. For this, two remote-sensing technologies are considered: Light Detection and Ranging (LiDAR) and 3D Close Range Photogrammetry (CRP). Their performances are compared against an accurate Robotic Total Station (RTS) device, serving as the benchmarking instrument. This work …

Advocacy Across Divides: Attorney Aaron L. Buchsbaum In Savannah, Georgia, 1963-1969, Sydney Jolene Kelly

College of Graduate Studies: Theses & Dissertations

This thesis explores the early life and career of Aaron Levy Buchsbaum, a Jewish lawyer from Savannah, Georgia. Buchsbaum's Jewish family upbringing, Southern childhood, and legal education all combined to mold him into an individual who used the profession to support those facing unjust treatment by the Savannah-Chatham County court system. By focusing on three of Buchsbaum's legal cases involving the Civil Rights Movement and his partnership with humanitarian organizations, this thesis contextualizes local conflicts in Savannah in the 1960s. Rather than safeguard the civil rights of all citizens, these cases demonstrate that the authorities, including judges, district attorneys, and …

Examining The Experiences Of Student Veterans With Support Services At Their Higher Education Institutions, Alejandra Miles

College of Graduate Studies: Theses & Dissertations

This qualitative study explored the lived experiences of student veterans with support services at their higher education institutions. Using a phenomenological design, it provided space for student veterans to share their stories and amplify their voices. Grounded in Astin’s (1984) theory of student involvement, the study conducted eight in-depth interviews with student veterans. The findings aligned with the theoretical framework and contributed to the literature on student veterans in higher education. Six key themes emerged: early preparation and planning for college, the impact of faculty interactions, peer connections with fellow veterans, understaffing of campus military-affiliated offices, awareness and use of …

Towards A Baker-Campbell-Hausdorff Theorem In Positive Characteristic, Nikolas A. Koutroulakis

College of Graduate Studies: Theses & Dissertations

We investigate whether there is an analog of the Baker-Campbell-Hausdorff (BCH) theorem for Lie algebras over fields of positive characteristic. We begin by introducing the proof of the BCH formula in characteristic zero. We then introduce the Artin-Hasse exponential and show that it is $p$-integral. Our main result provides sufficient conditions under which a BCH-type formula exists for the Artin-Hasse exponential in positive characteristic. Additionally, we derive a formula for computing an inverse of the Artin-Hasse exponential.

Quantifying Inositol Phosphate Dephosphorylation To Understand The Role Of Recalcitrant Organic Phosphorus Forms On Harmful Algal Blooms In Freshwater Systems, Iffat Tasnim

College of Graduate Studies: Theses & Dissertations

Organophosphorus such as phytic acid, a surrogate species of inositol phosphate (IP), may serve as a source for orthophosphate (OP) in freshwater. In absence of OP, competent aquatic microorganisms upregulate the production of specialized enzymes to obtain growth-sustaining OP from organic phosphorus (org-P) forms. The contribution of recalcitrant org-P to the OP pool has been overlooked due to the lack of capable tools to measure OP production from org-P accurately. The objective of this study was to quantify OP production from phytic acid (a surrogate form of recalcitrant org-P) to assess the contribution of recalcitrant org-P forms to the total …

On The Combinatorial Invariance For Kazhdan-Lusztig Polynomials, Grover C. Harrell Iii

College of Graduate Studies: Theses & Dissertations

This thesis will be a discussion on the Combinatorial Invariance Conjecture for Kazhdan Lusztig polynomials. The conjecture is widely suspected to be true; and there is an abun dance of computational evidence which supports it. Despite this, no complete proof has been discovered for more than forty years. We will explore some known results about the CIC, particularly those by Dyer, Incitti, Brenti, Caselli, and Marietti.

Assessment And Health Benefit Of Vitamin C Using A549 Cell, Yetunde Adepoju

College of Graduate Studies: Theses & Dissertations

Vitamin C (ascorbic acid) is a vital micronutrient recognized for its antioxidant capacity and essential bodily functions, such as collagen formation, neurotransmitter activity, and regulation of the immune system. This study explores how vitamin C can protect and potentially heal cells under oxidative stress and inflammation, using A549 cells, a human lung epithelial cell line, as the model system. The cells were exposed to varying concentrations of vitamin C dissolved in water, DMSO, and 5% DMSO. To assess the outcome, cell viability was measured with an MTT assay. In addition, the expression of key genes related to oxidative stress and …

Visual Attention And Memory Performance On Advertisements Featuring Celebrities, Kyrho Callis

College of Graduate Studies: Theses & Dissertations

VISUAL ATTENTION AND MEMORY PERFORMANCE ON ADVERTISEMENTS FEATURING CELEBRITIES

Synthesis And Processing Of Co-Axial/Tri-Axial Multi-Layered Nano-Particles, Jannatul Ferdaus

College of Graduate Studies: Theses & Dissertations

Electro-spraying has been used as an effective processing method of nanoparticle fabrication for the application of targeted drug delivery. The study demonstrates the feasibility of a non-conventional triaxial electro-spraying setup for multi-layered nano-drug fabrication and proposes optimized parameters. Two different drugs, XAV939 and Dextran 40000, were used to study the process parameters (voltage and solution concentration) of coaxial electro spraying. The particle size of Dextran-PCL was an average of 166.3 nm for PCL-Dextran at 32.5 kV and 18-hour sonication. The SEM analysis and UV-spectrum showed the encapsulation of Dextran with PCL, though the in vitro study in mice after 24 …

Accuracy In Real World To Pixel Coordinate Conversion, Noredia O. Imudia

College of Graduate Studies: Theses & Dissertations

The field of computer vision has numerous applications of the real-world to pixel coordinate conversion. Related fields of machine learning, artificial intelligence, virtual reality, and augmented reality share similar benefits. My contribution involves assessing the accuracy of multiple coordinate conversion methods through experimentation. The Focal Length Calibration method allows for manual calibration using the scale factor. I have concluded that manual camera calibration causes the greatest improvements to accuracy when the method focuses on every point in the image. Methods that localize accuracy still increase accuracy, but not to the same degree.

Long-Term Ichthyoplankton Monitoring Of The Moon River (Savannah, Ga) With A Focus On Climate Change, Bradley Cayson

College of Graduate Studies: Theses & Dissertations

The presence of healthy fish populations is a cornerstone of many important ecological mechanisms. These populations are supported by the recruitment of ichthyoplankton, or the egg and larval stages of fishes, as the primary determinant of population growth. Increases in average global water temperatures can alter the composition of fish communities and thus the offspring found in planktonic stages. I compared a large data set of ichthyoplankton surveys completed from 2009-2011 to a replicated six-month sampling period from May – November of 2024. Collection was conducted weekly to biweekly during night flood tides using a fixed suspension ichthyoplankton net (1mm …

Community And Decomposition Dynamics Along A Saltwater Intrusion Gradient On Sapelo Island, Georgia, Zach Gordon

College of Graduate Studies: Theses & Dissertations

Saltwater intrusion, the movement of ocean water into freshwater, is a significant global threat to coastal freshwater ecosystems linked to both climate change and anthropogenic influences. Alterations to coastal landscapes can increase intrusion. Sapelo Island has an extensive history of agricultural landscape alteration, but freshwater flow decline increased the movement of saltwater inland by tides. Intrusion is expected to increase in frequency and magnitude due to rising sea levels and storms. Salinization puts inland habitats and the humans relying on them at risk. As saltwater is denser than freshwater, more pressure is placed on benthic organisms (i.e., macroinvertebrates) that will …

Seafloor Magnetic Alteration Through Time Across The Northern Mid Atlantic Ridge, Jelil Olamide Olaoye Mr

College of Graduate Studies: Theses & Dissertations

The magnetic properties of oceanic crust evolve with age due to chemical alteration, changes in magnetic mineralogy, and physical processes associated with seafloor spreading. This study investigates how magnetic properties change over time in basaltic rocks from the northern Mid Atlantic Ridge, with a focus on two V-shaped ridge sites (VSRs; U1562 and U1563), two V-shaped troughs (VSTs; U1554 and U1555) and a normal crust site formed during episodic mantle upwelling. Magnetic analyses including anisotropy of magnetic susceptibility (AMS), natural remanent magnetization (NRM), alternating field demagnetization (AF) and hysteresis loops, was performed with optical microscopy and scanning electron microscopy (SEM) …

Exploring Coastal Plain Fish Ecology Across A Range Of Early-Life-History Traits And River Types, Bridgette Nicolosi

College of Graduate Studies: Theses & Dissertations

The ecological complexity of southeastern Coastal Plain rivers is reflected in the diversity of fish communities they support, yet the processes structuring early life dynamics remain poorly understood. This thesis explores the influence of environmental gradients on larval fish assemblage composition and American Shad (Alosa sapidissima) spawning phenology across two Georgia Coastal Plain river systems.

In the unregulated Ogeechee River, I investigated spatial and temporal variation in larval fish communities by comparing mainstem and tributary habitats to understand the role of tributaries in watershed-wide larval production. Larvae were collected biweekly from May to September 2024 at eight paired mainstem-tributary sites …

Multiphysics Modeling Of Solid Oxide Fuel Cells For Gradient Minimization And Inductive Loop Analysis In Impedance Spectroscopy Using Machine Learning-Based Microstructural Property Estimation, Muhammad Usman Khan

College of Graduate Studies: Theses & Dissertations

Solid oxide fuel cells have significant advantages in renewable energy utilization due to their high efficiency, fuel flexibility, and low emissions. However, despite the numerous efforts of technology, thermal and current density gradients and impedance behavior fluctuations are still causing performance degradation. A combined computational framework that integrates machine learning and three-dimensional Multiphysics modeling is needed to investigate and optimize the performance of solid oxide fuel cells. A machine learning model, trained on synthetic microstructure data by percolation analysis, is used to predict important microstructural parameters like triple phase boundary density and geometric tortuosity. These are then employed in a …

School And Community Factors That Influence Retention Of Highly Qualified Teachers In A Small Rural School District, Brian C. Scott

College of Graduate Studies: Theses & Dissertations

The retention of teachers has long been a concern among schools of all sizes and locations throughout the United States. In addition to school related factors, often small, rural communities lack the services and amenities of larger districts. This combination of school related shortcomings and lack of community offerings has created a critical teacher shortage for many small, rural school districts and requires urgent attention in regard to teacher retention strategies.

This quantitative study focused on the impacts of both school and community related factors as related to teacher retention in a small, rural school district. Using survey data, this …

The School Of Becoming: Speculative Essays On Existential Possibility And Humanity In Education, Timothy A. Holman

College of Graduate Studies: Theses & Dissertations

This dissertation reimagines public education through an existential lens, advocating for a humanitarian approach that resists the prevailing dominance of standardized, data-driven systems. Drawing primarily from the philosophy of Jean-Paul Sartre (1936, 1940, 1943, 1947, 1965, 1992), it contends that education should honor freedom, nurture authenticity, embrace encounters with others, and cultivate imagination as essential to human development. Influenced by the works of William Ayers (1998, 2004, 2008, 2016, 2024), Maxine Greene (1967, 1973, 1978, 1988, 2000, 2001), Paulo Freire (1970, 2001, 2004), Christopher Emdin (2010, 2016, 2021), and Byung-Chul Han (2018, 2024), speculative essays—each focused on an existential theme—are …

A Phenomenological Study Exploring The Lived Experiences Of First-Generation African American Students To Improve Retention Rates, Jaleesa Porter

College of Graduate Studies: Theses & Dissertations

Colleges and universities play an important role in maintaining high retention rates and getting students from matriculation to graduation. There are several studies related to the reasons and barriers that result in low retention rates. This qualitative study examined how one university in southeast Georgia can improve retention rates among first-generation African American students by enhancing its practices. The findings from this study the revealed lived experiences of college students that resulted in a range of emotions, resources and barriers, and communication. Discussion and implications of the findings provide recommendations for practice and future research.

Principal Perceptions Of Leadership Preparedness To Promote Family Engagement In Urban Title I Elementary Schools, Marcus Kimber

College of Graduate Studies: Theses & Dissertations

This qualitative research examines urban Title I elementary school principals’ perceptions of their family engagement readiness based on university leadership preparation and/or district-level professional development. Based on Epstein's Theory of Overlapping Spheres of Influence, this research examines how educational leaders overcome socioeconomic inequities, trust problems, and communication failures to develop equitable relationships with families. Themes that revealed preparation deficiencies and prospective high-impact family engagement methods emerged from semi-structured interviews and ongoing comparison analysis. Principals value family engagement and recognize its impact on student achievement and school climate, but most feel unprepared to implement systematic, sustainable student engagement strategies. Leadership training …

Experimental Study Of Deformation Behavior For A Novel Elastohydrodynamic Seal For Supercritical Carbon Dioxide Power Cycles, William A. Adams

College of Graduate Studies: Theses & Dissertations

Supercritical carbon dioxide (sCO₂) Brayton cycles are a strong contender for future power generation systems due to their high thermal efficiency and compact nature. Sealing is one of the key challenges presented by such systems that has a direct impact on the system's overall efficiency. This research is the first experimental study to investigate the deformation behavior of an elastohydrodynamic (EHD) seal made from bearing-grade polyether ether ketone (PEEK). A testing apparatus was developed to integrate four strain gauges positioned along the seal to quantify the deformation occurring up to pressures of 13 MPa. Mass flow rate measurements …

Fresh Eyes: Viewing Education Through A Critical Lens, Glennda Shealey-Griffiths

College of Graduate Studies: Theses & Dissertations

This dissertation confronts neoliberal ideology in public education, where standardized testing and market-driven accountability systematically undermine teacher autonomy and creative learning. Moving beyond critique to action, this study develops a practical pedagogical framework empowering educators to resist these dehumanizing forces and cultivate democratic learning spaces through arts-integrated professional learning as critical aesthetic pedagogy. Drawing on Henry Giroux, Maxine Greene, Paolo Freire, and Jacques Rancière, this qualitative case study examines a professional learning initiative with public school teachers through interviews, classroom observations, and analysis of participants' photographic projects. These visual works function not merely as documentation but as catalysts for Giroux's …

Spirituality And Unexpected Leadership: The Untold Stories Of Black Women Assistant Principals, Iantha B. Kittles

College of Graduate Studies: Theses & Dissertations

This dissertation is a qualitative study that uses the theoretical framework of Womanism (Walker, 1983/1967) to examine how Black women assistant principals use spirituality as a guidepost for their work in K-12 educational spaces. To expand on the work of Womanism, I draw on Dr. Berlisha Morton’s Southern Womanism (2016) and Dr. Emilie Townes’ Womanist Spirituality (1995), grounding this study in the conceptual framework of Southern Womanist Spirituality, which emphasizes the intersection of Black women’s work, spirituality, and social justice as well as race, gender, and place. The study uses a hybrid research methodology, Hush Harbor Circles, to promote healing …

One-Dimensional Numerical Analysis Of A Novel Elastohydrodynamic Seal For Supercritical Co2 Power Cycles With Experimental Validation And Future Approach, Cole B. Hayne

College of Graduate Studies: Theses & Dissertations

This thesis presents a numerical analysis and experimental verification approach for a novel elastohydrodynamic (EHD) seal designed with the specific application of supercritical carbon dioxide (sCO₂) power cycles. Brayton power cycles with sCO₂ as the working fluid have gained significant traction as potential large-scale power generation methods. This increase in interest and research is primarily due to their many beneficial characteristics, such as high thermal efficiency, compact geographic footprint, reduced capital costs, and lower water and fuel usage than comparable power cycles. Despite these many positive qualities, proper sealing technology remains one of the primary barriers to …

Bringing A Missing Minority Into Focus: Foster Parents’ Voices And Their Impact On Foster Children’S Academic Experiences, Clair Rutherford

College of Graduate Studies: Theses & Dissertations

Foster children face persistent educational inequities shaped by trauma, frequent placement changes, and systemic barrierswithin schools. This dissertation investigates how foster parents perceive and influence the educational experiences of the children in their care, emphasizing the intersection of advocacy, trauma-informed teaching, and institutional response. Grounded in trauma-informed pedagogy, critical ecology and curriculum studies, the study interrogates how schools both support and constrain foster children’s educational opportunities. An arts-based methodology was employed, combining fictionalized portraiture and digital ethnography. Data sources included foster parent social media posts, reflexive journalling, and researcher positionality as both teacher and foster parent. Composite narratives were constructed …

Exploring The Impact Of Covid-19 And The Role Of The Church On African Americans’ Mental Well-Being In South Georgia, Adrian D. Lewis

College of Graduate Studies: Theses & Dissertations

The emergence of COVID-19 in 2020 disrupted the social dynamics of communities in the United States. Furthermore, public health mandates led to closures that changed how populations access faith. Historically, African Americans have utilized the church to cope with societal stressors. This study will explore the history of church utilization in the African American community, assess how COVID-19 public health mandates led to church closures for the first time in recent history and impacted this marginalized population, and provide a qualitative perspective on the quality of life during the closures and what changed after the closures for African Americans in …