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Gravitational Perturbations And Quantum Field Interactions In Modified Spacetime Backgrounds, Abhishek Rout

Theses and Dissertations

This dissertation presents a study of gravitational perturbations and quantum field dynamics in modified spacetime backgrounds. The research is motivated by the quest to understand how quantum fields behave in curved spacetimes, particularly when extensions to general relativity, such as Chern--Simons modifications, are introduced.

The first part examines quantum field interactions with oscillating solitonic backgrounds, inspired by breather-type solutions of the sine--Gordon equation. Fermion bound states are shown to undergo destabilization due to the oscillatory background, leading to particle production and flux propagation to infinity. These results highlight the challenges of maintaining localized fermionic states in time-dependent topological backgrounds.

The …

Unlocking The Power Of Connection: Engagement And Communication With Limited/ Non English Language Families, Melinda Hope Burnette

Theses and Dissertations

Family engagement can positively impact a student’s academic performance, attendance, literacy, and behavior at school (Bachman et al., 2021; Garbacz et al., 2018; Houri et al., 2019; Karge & Lansky, 2011; Robinson et al., 2022). However, there are several barriers to school-family communication, including additional responsibilities outside the school setting and socioeconomic factors. Parents and families who have limited/no English literacy skills face additional barriers to participation because of the lack of language support from schools in communicating events, providing access to language support at events, and parent perceptions of school acceptance (Arellanes et al., 2023; Perrigo et al., 2022; …

Supporting School Administrators’ Knowledge Of The Idea: What Do They Know And What Do They Think, Rachel Renae Garrison

Theses and Dissertations

School level administrators play a critical role in the implementation of obligations set forth by the Individuals with Disabilities Education Act (IDEA) in their schools. To implement these obligations administrators, need to know and understand the IDEA. Researchers have shown that administrators often graduate from their principal preparation programs with little to no instruction in special education law, often leaving them feeling unprepared. The research that has been done into administrator knowledge of the IDEA has shown mixed results in levels of knowledge across different areas. Researchers have also found inconsistencies in administrators’ reported perceptions of their knowledge when compared …

The Role Of Language Ideologies In Saudi Elementary English Education: Efl Teacher’S Perspectives And Experiences, Ghanem Saad S Alghuwainem

Theses and Dissertations

This dissertation examines how Saudi elementary English teachers understand and enact language ideologies in a period of rapid educational change and national reform. Using a comparative case study of five teachers in Al-Ahsa, the study triangulates semi-structured interviews, classroom audio recordings, and teaching materials to compare stated beliefs with observable practice. The analysis is guided by the theories of English hegemony and language and gender ideology, which together illuminate how global linguistic hierarchies are localized through teachers’ beliefs and practices. Findings reveal that teachers occupy an ideologically complex position as they balance the national push for English proficiency under Vision …

A Case Study Of A University Induction Program: Coaching Early Career Teachers, William Roy Blakeney Jr.

Theses and Dissertations

Abstract This is collective case study focuses on coaches working in a university-based induction program that supports early career teachers during their first three years of teaching. Interviews were conducted over a fall semester to document coaches’ perspectives on the critical incidents encountered by their coachees and the strategies they used to support resolution. New teacher attrition rates have contributed to a shortage of qualified teachers in the targeted schools and districts. This study was designed to explore a program that has yielded three-year teacher retention rates of over 90 percent for the past seven years. Six university induction program …

Too Much Of A Good Thing? Can Students Be Too Behaviorally Engaged, Rosemary Louise Odem

Theses and Dissertations

Student engagement in school is a key determinant of students’ academic success. Student engagement is commonly conceptualized as a meta construct comprised of three dimensions: emotional, cognitive, and behavioral engagement (Fredricks, 2015). Behavioral engagement, the focus of this study, is defined by positive conduct, involvement in learning and academic tasks, and participation in school-related activities (Fredricks et al., 2004). Some researchers have suggested that psychological strengths, like engagement, can be overused and result in maladaptive consequences (Niemiec, 2019; Oishi et al., 2007). This study addressed this notion using archival data from a sample of 422 students from one Southeastern US …

A Qualitative Study Exploring Teachers’ Beliefs And Practices Supporting African American Male Readers, Rhonda Douglas Sumter

Theses and Dissertations

Despite decades of educational reform, African American male students continue to experience persistent disparities in reading achievement. This qualitative case study explores the beliefs and pedagogical practices of three elementary educators identified as effective in supporting the reading development of African American males. Drawing on the frameworks of Culturally Relevant Pedagogy (Ladson-Billings, 1995) and Critical Race Theory (Delgado & Stefancic, 2012), the study seeks to illuminate how educators affirm students’ identities, maintain rigorous expectations, and create responsive learning environments that foster academic success.

Data sources included in-depth teacher interviews and classroom observations. Thematic analysis revealed three interconnected practices across cases: …

Creating Meaningful And Relevant Professional Development Using Improvement Science, Jo R. Wright

Theses and Dissertations

The problem of practice focuses on how to improve professional development. Using improvement science, a team of individuals at the school engaged in problem solving techniques to discover the underlying root causes of the problem. The improvement team was composed of administrators, instructional coaches, and teacher leaders who worked in different areas of the school. Collectively, these individuals felt passionately about growing the staff members through effective professional development. Exploring the professional development sessions teachers were attending on campus, there were visible indicators that teachers were not engaged nor were they participating. Unpacking the issue further, the improvement team uncovered …

Strategies For Developing Mathematical Identities In Middle School Students, Margaret M. Stevens

Theses and Dissertations

This concurrent mixed-methods action research study investigated the impact of mathematical discourse intervention on seventh-grade students’ mathematical identities and understanding. Twenty students participated in a four-week intervention implementing Smith and Stein’s (2018) five practices plus one framework.

Quantitative results showed curriculum-based assessments improved significantly (p < .001, d = 1.64). State mathematics assessment revealed minimal change in mean scores. The Mathematical Identity Questionnaire revealed positive shifts across all five constructs, with largest gains in Mathematical Initiative (+0.40) and Problem-Solving Persistence (+0.30). Qualitative analysis using Bingham’s (2023) five-phase process revealed three themes: Mathematical Voice Development, Identity Transformation Through Competence Building, and Communal Validation. Social Cognitive Theory and Culturally Relevant Pedagogy integration showed how discourse interventions addressed both individual self-efficacy and systemic inequities. Findings suggest intensive discourse intervention can initiate positive changes in mathematical identity and understanding for struggling students. Implications include restructuring mathematics instruction to prioritize student discourse and voice, creating more equitable learning environments.

Influence Of Channel Geometry And Inflow Hydrograph On Hydraulics And Air Volume Around Shafts Of A Stormwater Main, Lylie Vindie Wilkie

Theses and Dissertations

Stormwater management in urban areas is complex, in part because of difficulties related to modeling water flowing in closed conduits, as well as to controlling odor, noise, and pipe corrosion. This thesis summarizes the main findings of a study on how changes in inflow discharge and the geometry of a stormwater main may affect water flow, and how changes in water depth impact air volume and pressure around an air shaft. The study is conducted using CHAN, a one-dimensional model that simulates both flow hydraulics in mains and associated changes in air volume and pressure around air shafts. Main difference …

Erosion Of Bermuda Grass Covered Soils, Oru-Ntui Johnwatters Nkiri

Theses and Dissertations

Earthen embankments are the most common type of embankment due to the relatively low cost, simplicity, and material availability. However, they are also the most prone to erosion related failure, typically due to overtopping and piping. Research has been conducted to identify ways to control soil erosion and protect earthen embankments with different approaches such as addition of chemicals and biopolymer to the soil, installation of protective layering (geotextiles, concrete), increased soil compaction, and use of vegetation. This thesis considers the use of Bermuda Grass to increase resistance to erosion and protect embankments from failure during overtopping. Grass coverage and …

Multiscale Geometric Analysis In Endovascular Therapies: Ex Vivo, In Silico Approaches, Dima Hussein Ali Bani Hani

Theses and Dissertations

In this work, we address a persistent global challenge of vascular disease, specifically peripheral artery disease (PAD), and arteriovenous fistula (AVF) complications in patients with end-stage kidney disease (ESKD). The important role of vascular geometry in disease intervention plans and the development of endovascular therapeutic strategies (e.g., Drug-coated balloon (DCBs)) is critical in addressing these challenges.

This study evaluates the feasibility of co-delivery of paclitaxel (PTX) and valsartan (VAL) using urea-based coatings in DCB, analyzes the coating morphology and microstructural changes to improve therapeutic results. A computational finite element model was developed to complement experimental work, simulate tissue-coating interactions, compute …

Gut Microbiome Dynamics In Heart Failure And The Therapeutic Potential Of Nmeg-Cgrp, Kamryn Michael Gleason

Theses and Dissertations

Heart failure (HF) is increasingly recognized as a multisystem disease often linked to gut dysbiosis; however, its specific effects on gut microbial composition remain poorly understood. This study examined long-term changes in the gut microbiome in a murine HF model induced by transverse aortic constriction (TAC) and evaluated the effects of NMEG-CGRP. TAC mimics pressure overload-induced cardiac dysfunction, replicating key features of HF. CGRP, a neuropeptide with vasodilatory and cardioprotective effects, shows potential as a therapy for HF but is limited by rapid degradation. A stabilized analog, NMEG-CGRP, was used to assess its impact on cardiac and gastrointestinal health. Mice …

Determination Of Tensile Strength Distribution Of Single Carbon Fibers At Microscale Gagelengths, Karan Deepak Shah

Theses and Dissertations

High performance carbon fibers are widely used as reinforcements in composite material systems for aerospace, automotive, and defense applications. The tensile strength of commercial fibers is significantly less than its theoretical limits. The composite systems are often overdesigned, thus any increase in the fiber tensile strength can yield significant cost and weight savings. Modification of fiber surface treatment (sizing) during manufacturing is a potential route to enhance fiber strength. Single fiber tensile testing at millimeter-scale is typically used to characterize the effect of sizing on the fiber strength. However, the longitudinal tensile failure of a composite system is a result …

Parental Attitudes And Expectations Regarding Piano Study For Their Children With Autism Spectrum Disorder, Lin Zhong

Theses and Dissertations

This study investigates parental attitudes and expectations regarding piano study for children with Autism Spectrum Disorder. Although music has been recognized for its therapeutic and educational benefits among individuals with ASD, research examining these outcomes from the perspective of parents has been limited. This study focuses on in-depth interviews with nine parents of children with ASD enrolled in the Carolina LifeSong Initiative, a specialized piano program serving students with diverse developmental disorders.

The interviews explored parents’ motivations for initiating piano study, expectations for both musical and non-musical outcomes, and observations of their children’s growth and challenges through music. Parents reported …

Multiphysics Modeling, Analysis, And Design Of Ceramic Hollow Fiber Membranes For Oxygen Separation, Hamed Abdolahimansoorkhani

Theses and Dissertations

Oxygen plays a central role in numerous industrial processes. Several technologies have been reported for producing oxygen from air. Among them, oxygen transport membrane (OTM) technology—based on mixed-conducting, gas-tight ceramic membranes—has attracted significant attention due to its high oxygen selectivity, relatively low capital and operating costs, and versatility for both ex-situ and in-situ applications. Mathematical modeling of OTMs offers a powerful tool to investigate internal multi-physics transport phenomena, providing deeper insight into fundamental mechanisms while serving as a cost-effective approach for optimizing membrane stack designs.

After a comprehensive introduction, in the first part of this dissertation (chapter 2), a comprehensive …

Cold Spray On Fiber Reinforced Polymer Substrates For Composite Repair And Tooling Applications, Patrick Allen Bailey

Theses and Dissertations

Cold Spray technology was first developed in the 1980’s and is an additive manufacturing and repair technique. It works by heating a pressurized carrier gas upwards of 600 °C and inserting metal particles downstream such that when they impact a substrate, the energy transformation causes plastic deformation of the particles. This thesis presents a use case for metal and polymer CS powder on fiber reinforced and fused filament fabrication polymer substrates. The state of the art for CS discusses the most up-to-date research within the field, and where new investigations are required. This research investigates the required process parameters to …

Evaluating The Performance And Feasibility Of A Device-Agnostic Approach To Compare Raw Accelerometry And Hr Data From Consumer Wearables To Research Grade Devices In Young Adults, Candy Bryan Mrudula Yalla

Theses and Dissertations

INTRODUCTION: Wearable technologies are increasingly used to monitor physical activity and heart rate in both research and everyday settings. This study aimed to compare accelerometery and heart rate (HR) data from two consumer wearables Apple Watch Series 7 and Google Pixel Watch Series 2, with research-grade devices: the ActiGraph GT9X Link and ActiHeart 5.

METHODS: Twenty-four young adults aged 18–24 years (mean age = 22.4; 54.2% female) participated in a 90-minute activity protocol while wearing the devices. The protocol included structured tasks ranging from rest to vigorous intensity. Consumer wearables and ActiGraph were worn on the non-dominant wrist, and the …

The Role Of Fibroblast Activation Protein On Left Ventricular Growth And Extracellular Matrix Remodeling As A Function Of Age And Pressure Overload, Amelia Marie Churillo

Theses and Dissertations

Fibroblast activation protein (FAP) is abundantly expressed in cancer associated fibroblasts and contributes to extracellular matrix (ECM) remodeling. Recent studies using imaging techniques have identified increased levels of FAP in the left ventricle (LV) of patients identified as at risk for developing heart failure. However, the role of FAP in regulated LV myocardial structure and function remains unclear. This project tested two hypotheses: First, genetic ablation of FAP would modify LV structure and function and be more pronounced with aging. Second, genetic ablation of FAP would modify LV structure and function with LV pressure overload (LVPO) accompanied by ECM remodeling.

Computational Analogies In The Era Of Large Language Models, Amarakoon Mudiyanselage Thilini Wijesiriwardene

Theses and Dissertations

Analogical reasoning is an important part of human cognition requiring the integration of abstract reasoning, pattern recognition, and background knowledge. Despite significant advances in language modeling, the capacity of current methods to accurately identify, model, and evaluate analogies remains fundamentally underexplored.

Analogies enable individuals to perceive deep similarities between superficially different situations. Effective analogy-making requires integrating knowledge about the external world with abstract reasoning and pattern recognition capabilities. While current language models (LMs), trained on massive textual corpora using autoregressive or masked objectives, achieve impressive performance across Natural Language Processing (NLP) tasks such as text generation, summarization, and classification, their …

Fue Evocations: A Culturally-Informed Performance Guide To Approaching Works For The Western Concert Flute Inspired By Traditional Japanese Flutes, Chase Michael Ketron

Theses and Dissertations

The purpose of this document is to create a culturally-informed and aesthetically accurate performance preparation guide for Western concert flute players seeking to perform works inspired by traditional Japanese flutes, or fue, such as the shakuhachi and nohkan.¹ While many pieces like these exist, there are limited resources detailing how to emulate the traditional Japanese flutes and their performance practices. The composers of these works often do well to provide notation for producing the specific sounds or effects they are trying to replicate, but these are non-standardized and thus vary from composer to composer. In addition, the traditional …

Eeg And Media Multitasking: Adhd As A Moderating Factor, Xiaoying Guo

Theses and Dissertations

Media use has become an integral part of everyday life. It has risen dramatically over the past century with the advent of television, computers, and digital platforms, and more recently, it has been characterized by individuals using multiple devices simultaneously (Bushman & Anderson, 2001; Nielsen Media Research, 1998; Rideout & Robb, 2019, 2021). Media multitasking (MMT) has been linked to cognitive control challenges and attentional difficulties. This study examined EEG workload (Fz theta/Pz alpha ratio), survey accuracy, and ADHD traits (ASRS v1.1) in 33 adult participants across baseline and single-versus dual-media conditions. Results indicated that mental workload was significantly higher …

Security And Terrorism Vs Free Expression: Analytical Study On The European Court Of Human Rights, Mariam Adel Massoud

Theses and Dissertations

The 11 of September attacks provide a paradigm shift when it comes to protection of national security. It results in a trending vision that prioritized security over national security, which makes it essential to think about balancing national security with free expression as a pillar of democratization. This study focusses on how the balance between freedom of expression and national security interests is achieved. It studies the legal approached of the European court of human rights and its legal assessment to strike this balance. The findings of this analytical study asserts that in order for the ECtHR to achieve this …

Addressing Graduation Disparities: Double-Dose Algebra As A Catalyst For Success Among Economically Disadvantaged Learners, Tracy Matozzo

Theses and Dissertations

This study investigated the impact of a double-dose algebra intervention (DDAI) on the academic achievement of economically disadvantaged learners (EDLs) in a suburban New Jersey high school. Algebra, recognized as a gatekeeper course for graduation and postsecondary opportunities, was the focal point for targeted instructional reform. Using a quasi-experimental design, outcomes for EDLs enrolled in the DDAI were compared with peers in traditional algebra classes across three cohorts. Findings showed that EDLs in the treatment group achieved higher passing rates in Algebra I and demonstrated stronger attendance patterns than the control groups, though standardized test score improvements were modest. Survey …

Multiscale Modelling Of Eg5: Structural Insights Into Microtubule Interactions, Atp Hydrolysis, And Allosteric Inhibition Mechanisms, Soundarya Priya Alexandar Ms

Theses and Dissertations

The mitotic kinesin EG5 is essential for spindle bipolarity and accurate chromosome segregation during cell division, making it a validated anti-cancer target. Unlike conventional microtubule-targeting agents, EG5 inhibitors offer mitosis-specific action, reducing neurotoxicity. Although inhibitors targeting EG5’s allosteric site-I have been extensively studied, mechanistic insights into inhibition at site-II, and their combined effects, remain underexplored. This thesis systematically investigates the structural and dynamic mechanisms underlying EG5 function and its inhibition using an integrative computational approach.

Conformational analysis, coarse-grained dynamics, all-atom molecular dynamics simulations, and protein network analysis were performed on EG5 motor domain structures and EG5-microtubule complexes. Results show that …

Evaluating The Effectiveness Of Tier Iii Restorative Practices: An Examination Of The Teacher-Student Mentorship Program And Disciplinary Approaches Towards Students With Disabilities, Jacquelyn M. Van Orden

Theses and Dissertations

This program evaluation was initiated to determine the effectiveness of a one-on-one mentorship program at Maple Grove Middle School. The program emerged in response to a troubling pattern in disciplinary data from the previous school year, of which 18 students received ten or more discipline referrals in 2023-2024. Notably, 14 of these students were classified with a disability, highlighting a disproportionate rate of disciplinary action towards students receiving special education services. In an effort to address this issue, each student was paired with a mentor, with the intent to provide support for positive behavior, and an improvement in academics. This …

Assessing Inclusion Within Naaee Affiliate Ee Associations And Where To Go From Here, Connor Chilton

Theses and Dissertations

Environmental Education (EE) has a history that has been typically defined by traditionally dominant identities (White, male, able-bodied, etc.). The North American Association for Environmental Education (NAAEE) offers a unique position as frontrunners for the field of EE and have the duty to provide an inclusive-minded education for and about the environments throughout the world. Through NAAEE’s affiliate network within the United States, this paper details a glimpse into the work towards inclusion by surveying its leadership position holders about the broad subject and several interconnections of inclusion. Upon completion of the survey, participants who opted to participate in a …

Ground-Based Modeling Of Deep-Space Risks To The Spleen And Intestine In Mice, Edith Nathalie Pineda Sotomayor

Theses and Dissertations

Deep-space missions, such as those planned for the cis-lunar space and Mars, pose unique challenges to astronaut health due to prolonged microgravity (MG) exposure and low-dose chronic irradiation (CIR). Understanding the impact of these stressors on secondary lymphoid tissues, such as the spleen and intestine, is crucial for ensuring crewmembers' well-being, given the impracticality of conducting this research with human samples. Using a ground-based facility, we exposed C57BL/6 female and male mice to CIR (1.74 Gy at a dose rate of 0.0029 Gy/h) and/or simulated MG (SMG) via hind limb unloading (HLU) for one month. Spleen and intestinal tissues were …

Creating A Classroom Environment For Prekindergarten Students To Develop Social-Emotional Competencies And Transition Out Of The Step Program., Ayeshah N. Major

Theses and Dissertations

This mixed-methods study examined how the integration of Conscious Discipline and SEL-focused children’s literature can support the development of social-emotional competency in prekindergarten students. The problem of practice is that some children enter school without the foundational social-emotional skills necessary for successful learning and positive peer interactions. The purpose of this study is to identify strategies that support social-emotional growth and create an environment that aids STEP students in transitioning to a traditional prekindergarten classroom. Data was collected using parent questionnaires, student assessments, classroom observations, student interviews, and student drawings. The findings revealed that children’s literature provided accessible and meaningful …

Molecular Architecture And Mechanical Response In Polymeric Materials: Thin Films, Linear-Ring Elastomers, And Lignin, Siteng Zhang

Theses and Dissertations

Understanding the mechanical behavior of polymeric materials is critical to advancing modern technologies, from flexible electronics to sustainable adhesives. This dissertation investigates the micromechanics of polymer thin films, dual-network elastomers, and bio-based lignin materials, with an emphasis on deformation mechanisms, network topology, and mechanical properties. The work combines principles of polymer physics with materials science to uncover structure–property relationships that inform polymer design. This dissertation primarily uses coarse-grained and atomistic molecular dynamics simulations to investigate molecular-scale behavior beyond experimental reach. Through these methods, critical insights are gained into how entanglement, topology, and chain architecture govern bulk material performance. The first …