Digital Commons Network^™

Comparison Of Specific Jaw Position Measurements On A Static And Dynamic Virtual Patient., Payton Lofton

Electronic Theses and Dissertations

This study aimed to compared the differences in jaw position measurements in protrusive and open/close positions on a static virtual patient created using 3dMD System to those from a dynamic articulation of a virtual patient (MODJAW) as well as measurements between the Cadiax and MODJAW. Six fiducial surface markers were placed on a volunteer subject’s face and dynamic facial scans of protrusive and open/close jaw movement acquired and exported. A CBCT scan was also acquired. The mandible and maxilla were segmented and loaded into Vultus and aligned to the facial scan using the fiducial markers. Results were compared using a …

Rockin’ Rehab: Novel Rocking Chair For Children With Spinal Cord Injury To Enable Trunk Muscle Activation And Detect Muscle Activation Patterns., Johnathan Jay George

Electronic Theses and Dissertations

Introduction: Activity-based locomotor training improves trunk control in children with spinal cord injury (SCI), and there is need for additional activities to allow these children to activate trunk muscles. The purpose of this research was to design, fabricate, and evaluate a rocking chair for children with SCI, and to investigate the activation of muscles during use. Sensorization of the chair to confirm muscle activation is also explored. Methods: Quality Function Deployment (QFD) design methodologies identified and ranked needs and features for the rocking chair. A design was developed and evaluated via finite element analysis. The chair was fabricated and tested …

A Case Study: The Influence Of Professional Development, Administrative Support, And Co-Planning On Teacher Perceptions Of Co-Teaching., Heidi Zimmerman

Electronic Theses and Dissertations

This dissertation presents a case study methodology investigating the influence of professional development, administrator support, and co-planning on teacher perceptions of co-teaching. My interest in co-teaching increased as a former special education teacher after implementing co-teaching strategies in my own practice. As defined by the Kentucky Administrative Regulations, Collaboration means, a teacher of exceptional children works with children with disabilities in the regular classroom to provide specially designed instruction and related services (707 KAR 1:350, Section 2). Oftentimes, Collaboration and Co-Teaching may be used interchangeably. For the purpose of this study, the term Co-Teaching will be used throughout. The goal …

Conceptualizing An Islamic Character Education Program., Norma Nangju

Electronic Theses and Dissertations

Character education, specifically faith-based character education, can provide a social, emotional, and academic benefit for students. Through this study, I wanted to take the first step: to design an Islamic character education program collaboratively with all stakeholders of the school. This study used participatory action research as a methodology. The first purpose was for administrators, teachers, parents, students, and community members at an Islamic school in Louisville, KY to collaborate to brainstorm the goals of a character education program at HIRA Institute using the Nominal Group Technique. The second purpose was, based on these goals, how can the strategies of …

Acute Mechanical Circulatory Support In The Cardiovascular Icu: Investigating The Effects Of An Interactive Cardiovascular Dynamics Simulation Program On Nursing Clinical Judgment., Casey Saulman

Electronic Theses and Dissertations

Introduction: Education on acute mechanical circulatory support (AMCS), a therapy used in the cardiovascular intensive care unit (CICU) to manage cardiogenic shock (CGS) is limited for CICU nurses. There is a need to explore clinical judgment in CICU nurses and provide innovative learning experiences that foster judgment when managing AMCS. Methods: This mixed methods feasibility study investigated the effects of an interactive cardiovascular dynamics simulation program on CICU nurses’ knowledge, clinical reasoning, and clinical judgment. Semi-structured interviews explored the participants’ perceptions of the learning experience. Results: Twenty-one nurses completed the cardiovascular dynamics simulation program. The majority were white (85.7%), female …

Magnetic Properties Of Zgnrs With Nitrogen And Fluorine Adsorbates, A Computational Study, Justin Petit

Electronic Theses and Dissertations

Imposing dimensional restrictions on graphene sheets and adding impurities can give rise to carbon nanostructures with magnetic properties. In this work, zigzag graphene nanoribbons, zGNRs, with nitrogen and fluorine adatoms are investigated for magnetic properties of interest for spin devices. Geometry optimizations were done determining which position along a zGNR electrode that N and F would favorably attach to. Edge positions were determined as the most stable attachment site. M-cell zGNR electrodes (M = 1-3) edge-functionalized by N and F adatoms were investigated with respect to their band structures and spin densities in antiferromagnetic and ferromagnetic, AFM and FM, configurations. …

Teacher Support For Virtual Instruction In The Social Studies Classroom, Lindsay Weirich

Electronic Theses and Dissertations

This research study focuses on providing professional development for teachers using virtual reality in secondary social studies classrooms. Literature surrounding virtual reality for education focuses on the effects of virtual reality on student motivation and engagement. However, there are no current studies available to help instructional coaches or academic leaders provide adequate professional development for their staff on this topic. The purpose of this mixed-methods exploratory case study is to design a professional development founded on best practices in VR and instructional coaching to help support social studies teachers integrate VR in the classroom. Research questions include: 1) How do …

Factors That Contribute To Challenging Behaviors With Early Childhood Students, Jennifer N. Robinson

Electronic Theses and Dissertations

There has been an increasing number of students being referred to mental health services due to behavioral problems they exhibit at school. Behavioral and social concerns impede academic success for the individual child as well as their classroom peers. Many factors can contribute to challenging behaviors in early childhood students within rural and high-poverty communities, an elementary school in the South-Atlantic region of the United States is experiencing some of those factors. The purpose of this qualitative research study is to investigate some of the possible factors which contribute to challenging behaviors and how those factors impact academic achievement. The …

The Elephant In The Classroom: Understanding Teachers’ Implicit Biases In Grading Student Work In A Mathematics Classroom, Tina Marie Medina

Electronic Theses and Dissertations

This study focused on automaticity or the choices we make without conscious thought. Specifically, the study examined how math teachers improved their understanding of the practice and evolution of culturally responsive teaching by analyzing the lived experiences and metacognition of practicing middle school teachers as they assess student work in mathematics. The potential impact of implicit stereotypes, instructor expectations, assessment design, cultural considerations, and other variables on the grading process was investigated. The purpose of this case study was to uncover teachers’ implicit biases as it relates to grading student work in a middle school math class.

This qualitative study …

Understanding The Multidimensional Ramifications Of Education Censorship To Promote Justice-Oriented School Social Work., Brandon D. Mitchell

Electronic Theses and Dissertations

Since 2020, recensions on youth rights and education censorship have been backed by a network of actors and organizations on the political Right, evidenced by race and diversity curricula bans, book bans, and inflammatory media discourse. The scope and prevalence of education censorship are understudied with little known about the policies enacted, and influences of media discourse, school boards, and the effects on schools and the school social worker. The purpose of this dissertation is to explore and understand the scope and prevalence of education censorship, including policies, media discourse, school boards, and schools. To achieve the aims of this …

Macrophage Polarization And Colorectal Cancer Immune Checkpoint Protein Expression., Anne Macleod

Electronic Theses and Dissertations

The majority of patients with colorectal cancer do not respond to treatment with immunotherapy. Immunotherapy requires the expression of cell surface immune checkpoint proteins (e.g. PDL1) to exert its effect. Most (>85%) of colorectal cancers do not express these proteins and this contributes in part to the poor prognosis and survival in patients with advanced disease. The patients in which immunotherapy is a potential treatment option, are a genetic subtype known as mismatch repair deficient, and have demonstrated an excellent response to anti-PD-1/PDL1 immunotherapy. A key feature of mismatch repair deficient (MMRd) cancers is their immune cell rich tumor …

A Multiple-Methods Assessment Of Faculty Attitudes Toward Inclusive Instruction., Kate A. Snider

Electronic Theses and Dissertations

The enrollment landscape of postsecondary institutions in the United States has undergone significant demographic shifts, marked by increasing racial and ethnic diversity and a rise in enrollment of students with disabilities. Recognizing the importance of accommodating diverse learners, this study investigates faculty attitudes toward inclusive instruction, Universal Design for Instruction, and disability-related topics. This multiple-methods study aimed to identify differences across faculty groups to establish an initial measure of faculty attitudes toward inclusive teaching practices that can be used to design future training or professional development opportunities. Data was collected via an online distribution of the Inclusive Teaching Strategies Inventory …

Engaging For A Cause: How Nonprofits Can Leverage Theory To Maximize Video Engagement On Instagram., Aiko A. A. A. Jones

Electronic Theses and Dissertations

Video is the second-richest form of media, conveying both verbal and nonverbal cues to viewers (Hasim et al., 2020). When coupled with the accessibility of social media, videos can spark consumer interest and convert neutral parties to brand-supporters (Alamäki et al., 2019; Tseng & Wei, 2020). This study aimed to investigate the effects of using Aristotle’s persuasive appeals, Berger’s STEPPS, and Monroe’s Motivated Sequence on the success of nonprofit organizations’ social media videos, measured in engagement metrics (likes and comments). Through a content analysis of 50 videos posted to Instagram by randomly selected nonprofit organizations, this study found that pathos …

In-Training Explainability Frameworks To Make Black-Box Machine Learning Models More Explainable., Asuman Cagla Acun

Electronic Theses and Dissertations

Despite ongoing efforts to make black-box machine learning models more explainable, transparent, and trustworthy, there is growing advocacy for using only inherently interpretable models for high-stake decision-making. Post-hoc explanations have recently been criticized for learning surrogate models that may not accurately reflect the actual mechanisms of the original model and for adding computational burden at prediction time. We propose two novel explainability approaches to address these limitations: pre-hoc explainability and co-hoc explainability. These approaches integrate explanations derived from an inherently interpretable white-box model into the learning stage of the black-box model without compromising accuracy. Unlike post-hoc methods, our approach does …

Conversion Of Microcrystalline Cellulose To Hexane Using Hydrogenated Metal Oxides At Low Temperature And Pressure, Mubarak Osman

Electronic Theses and Dissertations

Increasing global energy demand and environmental concerns have fueled the exploration of sustainable and efficient methods for renewable fuel production. The conversion of cellulosic waste to hydrocarbon fuels using hydrogenated metal oxides presents a novel and eco-friendly approach to sustainably address energy demand. In this study, hydrogenated metal oxides were used as catalysts in a relatively low-temperature and atmospheric-pressure environment to facilitate the conversion of cellulosic waste into hydrocarbon fuels. Hydrogenated metal oxides have been introduced as potential hydrogen transfer catalysts. The expected result is the selective conversion of cellulose to hexane at relatively low temperatures, which significantly reduces energy …

Landslide Susceptibility And Tree Ring Eccentricity Analysis Along Unstable Slopes Of The New River Watershed, Anderson And Morgan Counties, Tn, Megan Palmer

Electronic Theses and Dissertations

Landslides are mass movements that affect infrastructure across East Tennessee, causing problems for the Tennessee Department of Transportation (TDOT). An assessment of conditions and locations of unstable slopes can aid TDOT in infrastructure management. Landslide susceptibility was evaluated for Anderson and Morgan counties, TN, off State Route 116 in the New River watershed. Susceptibility maps used a landslide inventory and six factors: elevation, slope, geology, distance from stream, rainfall, and curvature, input in forest-based classification and logistic regression models. Additionally, affected trees along these unstable slopes in Anderson and Morgan counties were cored to analyze mass movement impacts on tree …

Cost Saving And Resource Limited Public Health Interventions In Southeast Asia, Amanda Blackwelder

Electronic Theses and Dissertations

Background: Public health interventions are any activity with the objective of improving human health such as preventing or curing disease, reducing the severity or duration of a disease, or assisting in regaining function after a disease or injury. These interventions are known to be impactful; however, those living with the highest burden of disease such as individuals in low- and middle-income countries have limited money and resources to successfully implement these interventions. Southeast Asian countries are among some of the middle-income countries effected by the lack of affordable interventions. The aims of this study were to assess cost saving and …

Mems Optical Cavities For Low Power Communication., Jacob Schopp

Electronic Theses and Dissertations

This thesis discusses the use of MEMS (microelectromechanical systems) optical cavities for use in low power communication. MEMS optical cavities are thin air gaps between an actuated MEMS mirror and a fixed glass encapsulation. By moving the MEMS mirror the reflectivity of the MEMS optical cavity can be changed. This change in reflectivity can be used to transmit information passively by modulating reflected light intensity instead of generating new light using a light source. These MEMS optical cavities are demonstrated using optical fibers for illumination delivery and reflected light collection. In addition to being reflected for communication, the illuminating light …

Mechanical Property Simulations Of Ploybenzimidazole Membranes., Blake Alexander Clark

Electronic Theses and Dissertations

This work explores mechanical properties of membranes made of polybenzimidazole utilizing molecular simulations. These simulations researchers to narrow down polybenzimidazole membrane compositions to viable candidates. These simulations are quicker than current purely experimental methods. The increase in throughput would be achieved by eliminating compositions that have unfavorable mechanical properties through preliminary simulation work before moving onto experimental methods. Determining polybenzimidazole membranes’ mechanical properties experimentally would, therefore, allow for researchers to speed up research in areas such as fuel cells and electrolyzers that make use of polybenzimidazole membranes. This study uses Materials Studio and the COMPASS III forcefield to perform these …

Development, 3d Printing, And Sintering Of Aluminum-Magnesium Alloy Pastes For In-Space Manufacturing Applications, Fatou Ndiaye

Electronic Theses and Dissertations

This study explores the additive manufacturing process of paste printing, sintering, and de-binding for fabricating aluminum-magnesium alloy components. The paste formulation involved combining aluminum powder with varying magnesium concentrations, utilizing acrylic polyol, solvent, and plasticizer to create a homogeneous mixture. Printing parameters were optimized to ensure continuous pressure for improved extrusion. Sintering conditions involved incremental temperature increases with nitrogen flow to remove solvents. Density measurements, tensile tests, and shrinkage calculations were conducted to assess part quality post-sintering. The study revealed significant improvements in part quality with 5 wt.% magnesium incorporation within aluminum, although density and tensile strength fell short of …

Caring For The Aging In The Twenty-First Century: A Principlist Approach To Psychiatric Care For Geriatric Patients, Gabriella Agostaro

Electronic Theses and Dissertations

As the field of psychiatry continues to expand, the importance of equitable care continues to remain apparent. Geriatric patients with psychiatric conditions experience a heightened rate of discrimination in care facilities and psychiatric symptoms are often left untreated or individuals are forcibly treated against their will. While these patients typically present with a handful of physical comorbidities, gaps in care typically result from a lack of resources delegated to the aging population and an extreme lack of education for clinicians dealing with psychiatric patients.

Clinicians and additional members of the medical team have typically prioritized a paternalistic approach to the …

Using Graphic Novels To Improve Reading Comprehension In Students With Autism Spectrum Disorder, Rachel Denney

Electronic Theses and Dissertations

Upper elementary and middle school students can be less than engaged due to the lack of pictures in texts. Making the reading transition from picture books to complex text literature is challenging for students. Graphic novels could be a resource to improve student engagement and comprehension and support students in that transition. Students with ASD can face additional challenges with reading comprehension and instruction during school. Currently graphic novels are not used commonly for students and the goal of the research is to investigate if these types of books can be a support for students, reading comprehension and engagement. The …

Psychiatric Mental Health Nurse Practitioner Perceptions Of How Providing Patient Care During The Covid-19 Pandemic Affected Their Own Mental Health, Linda Cabage

Electronic Theses and Dissertations

Public health concerns were prominent during the COVID-19 pandemic, particularly regarding rising cases of anxiety and depression among adults. U.S. healthcare providers were especially affected by the unrelenting demands on their time and service. Psychiatric Mental Health Nurse Practitioners (PMHNPs) provided patient care during the pandemic to meet the increasing need for mental health services as people began experiencing mood disturbances such as anxiety, depression, and grief. The purpose of this qualitative study was to explore the perceived effect of the COVID-19 pandemic on the mental health of PMHNPs. A qualitative design using the interpretive description method allows researchers to …

Dialogic Reading As An Intervention For Developing Reading Comprehension Skills In Early-Literacy School-Age Children With Disabilities, Kristi Burnette

Electronic Theses and Dissertations

The purpose of this study was to investigate the effects of dialogic reading as an intervention on participant ability to answer “wh” comprehension questions correctly and independently. Previous research conducted on dialogic reading was primarily conducted with young individuals with autism spectrum disorder, leaving a gap in the research with older age participants. Participants of this study included four students in upper elementary grades 4-6, ages 8-12 who have been identified to have a known deficit in reading comprehension, a cognitive disability, or autism spectrum disorder (ASD) in an attempt to further extend the research on dialogic reading as an …

Gentleman Death In Silk And Lace: Death And The Maiden In Vampire Literature And Film, Emily Wilson

Electronic Theses and Dissertations

This thesis contains an examination in the psychosocial significance of Hans Baldung Grien’s “Death and the Maiden” art motif, created during the Renaissance period following the Black Death, and its resurgence in the vampire fiction genre of both literature and film. I investigate the motif in Bram Stoker’s Dracula (1897) and Anne Rice’s Interview with the Vampire (1976) as well as their film adaptations by Francis Ford Coppola (1992) and Neil Jordan (1994), respectively. By examining the presence of the motif in art, literature, and film, I found that the common threads across all investigated works were the dominant social …

Using Cultural Contextual Story-Based Lessons To Teach Emergent Literacy Skills, Elizabeth Smith

Electronic Theses and Dissertations

The purpose of this study was to investigate and determine the effectiveness of teaching an English Language Learner (ELL) teacher to use a task analysis comprising story-based lessons with cultural contextual literature to promote emergent literacy skills for a middle school-aged Hispanic ELL student with an intellectual disability (ID). Using a single-case multiple probes across skill sets design, one student with an ID and an ELL teacher participated in this study. The student was taught by the ELL teacher using story-based lessons with cultural contextual literature to promote emergent literacy skills. Results indicated a functional relation between story-based lessons with …

Detection And Classification Of Diabetic Retinopathy Using Deep Learning Models, Aishat Olatunji

Electronic Theses and Dissertations

Healthcare analytics leverages extensive patient data for data-driven decision-making, enhancing patient care and results. Diabetic Retinopathy (DR), a complication of diabetes, stems from damage to the retina’s blood vessels. It can affect both type 1 and type 2 diabetes patients. Ophthalmologists employ retinal images for accurate DR diagnosis and severity assessment. Early detection is crucial for preserving vision and minimizing risks. In this context, we utilized a Kaggle dataset containing patient retinal images, employing Python’s versatile tools. Our research focuses on DR detection using deep learning techniques. We used a publicly available dataset to apply our proposed neural network and …

Navigating New Frontiers: A Narrative Of Cte Administrators Leading Rural Innovation, Claire Bass

Electronic Theses and Dissertations

Public school districts play a pivotal role in the well-being of rural communities. To help mitigate the impact of labor market trends, societal shifts, and the skilled labor shortage, rural schools are in the initial stages of expanding innovative career pathways. As such, career and technical education (CTE) administrators serve their rural communities by facilitating robust career pathways to support local labor markets. Due to a skilled labor shortage, a declining labor force participation rate, and a rapidly evolving labor market, there is a lack of qualified and certified personnel to fill industry jobs (Davis et al., 2022). School districts …

Adding Texture Through Historical Research: Using Dramaturgy To Aid In The Creation Of Elizabeth (Bess) Borney., Nyazia Brittany Martin

Electronic Theses and Dissertations

This thesis follows my work with the production The Old Settler by John Henry Redwood. This document explores my process as an actor, and how I decided to capitalize on an opportunity to study Dramaturgy and apply what I learned to my actors' process. In the pages of this thesis I present the pieces of my process, including my vocal and movement work based in Laban and Alexander Technique. I give personal examples of how my dive into dramaturgical work positively affected how I crafted the role of Elizabeth (Bess) Borney. I also detail the transition out of my work …

Educator Perceptions Of Blended Teacher Professional Development: A Case Study Of A Vertically Aligned Virtual Professional Learning Community., Aslean White

Electronic Theses and Dissertations

This case study describes the design and enactment of a job-embedded, blended learning professional development plan for teachers to facilitate the collaborative inquiry of a vertically aligned virtual professional learning community. The study is of relevance because it seeks to implement recommendations from recent research on online teacher professional development (Barnett, 2020; Lockee, 2020; Powell & Bodur, 2019) using a framework for support structures designed to engage learners in blended and online learning environments (Philipsen et al., 2019). This qualitative multi-case study examined individual teacher cases using a within-case analysis to create teachers’ profiles to illuminate contextual traits and elucidate …