Digital Commons Network^™

The Impact Of Transformational Leadership On Writing Across The Curriculum, Amie M. Wright

Dissertations

This research study examined the relationship between school leadership style and the use of writing across the curriculum (WAC) in secondary classrooms. Writing practices and the use of writing as a form of assessment in subject areas other than ELA is thought to be a way to better prepare students to meet the literacy expectations of the 21st century. For writing practices to be integrated across the curriculum in secondary environments, school leadership support is essential. This study aimed to answer the following questions: How can school leaders in secondary educational settings support writing across the curriculum? What are the …

Teachers' Perceptions Of Play-Based Learning In Early Childhood Classrooms, Laura B. Rushatz

Dissertations

Play-based learning is an important part of developing the whole child emotionally, socially, physically, cognitively, and communicatively. Through play, children are allowed to explore, investigate, discover, think, solve problems, and communicate. The purpose of this study was to determine what early childhood teachers in public schools know and believe about the use of play-based learning in their classrooms and how these teachers perceive their administrator’s role in the use of play-based learning. This study used a mixed method approach to gather the perceptions of early childhood educators in seven different school districts through four counties. The sample included responses from …

The Phenomenology Of Success: Women Who Made It To The C-Suite Despite Barriers, Bettye H. Smith

Dissertations

Multiple researchers have explored avenues to achieve gender diversity in leadership, primarily by studying the barriers to success for aspiring women leaders. Despite barriers, a small group of women have risen to the top positions of US corporations, demonstrating that there is a path to success and highlighting an opportunity to address leadership diversity differently. Whereas most research on gender diversity in leadership focuses on the barriers women encounter, this qualitative phenomenological study focused on how women can succeed. By leveraging Bronfenbrenner’s ecological systems theory to explore systems that enabled a phenomenal group of women to advance to the C-suite, …

The Relationship Between Secondary Ela Teacher Pedagogical Practices, Student Self-Regulated Learning And Digital Self-Efficacy In A Blended Learning Environment, Melissa K. Miller

Dissertations

In the era of emerging technologies in the 21st Century classroom, secondary English Language Arts (ELA) students may exhibit complications in navigating literacy in blended learning environments. The purpose of this research study focused on addressing a gap in the current literature in these specific areas to investigate the relationship between ELA teachers’ pedagogical practices and elements of secondary students’ learning motivation for ELA. Specifically, this study explored secondary ELA students’ perception of teachers’ classroom practices, self-regulated learning, and digital self-efficacy. The overarching research question in this study examined: What relationship exists between (a) the pedagogical practices of secondary ELA …

Pauline Echoes In The Preaching And Activism Of Francis James Grimké (1850–1937): Confronting Ethnic Prejudice Through An Evangelical Emancipatory Homiletic (Eeh), Eric J. Freeman

Dissertations

Pauline Echoes in the Preaching and Activism of Francis James Grimké (1850–1937): Confronting Ethnic Prejudice through an Evangelical Emancipatory Homiletic examines how Grimké’s sermons and public discourse, rooted in the proclaimed and embodied gospel of Jesus Christ and resonant with the Apostle Paul’s hermeneutic and pastoral heart, addressed social injustices—particularly ethnic prejudice—through a distinct, socially conscious homiletic. This research defines Grimké’s unique homiletic as an Evangelical Emancipatory Homiletic (EEH), a term coined here to convey the gospel-embodied, contextually aware nature of his ministry. Framed within the practical theology of homiletics, this study illustrates how Grimké’s EEH incorporated textual and thematic …

Exploring The Leadership Competence Strategies And Assessment Procedures In Southern Baptist Churches In A Small County In The Southeastern United States: A Qualitative Research Case Study, Coleman F. Smoak Jr.

Dissertations

This dissertation explores the strategies of Southern Baptist churches which contribute to the competence of their lay leadership. It examines the procedures for evaluating lay leaders’ knowledge of church doctrine and goals, as well as their motivation for pursuit of successful ministry. The research assessed Southern Baptist churches in a small county in the Southeastern United States through a qualitative case study with the primary research instrument being one-on-one, semi-structured interviews of church staff. The researcher sought an understanding of these churches’ practices to ensure that lay leaders are equipped for their ministry positions with regard to their leadership approaches, …

Emotional Intelligence And Its Influence On Burnout From Surface Acting In A Seasonal Service Industry, Jeremy Fishman

Dissertations

In the world of customer service, it is commonly believed that the customer is always right, even when they may not be or may be. Roles that carry immediate interaction with the consumer have certain expectations that employees must fulfill, necessitating both surface acting and deep acting; tenets of emotional labor (Diefendorff et al., 2006). Previous research has revealed that relying solely on surface acting can lead to emotional exhaustion and burnout, impacting individuals and even spreading through emotional contagion (Mawritz et al., 2012; Totterdell & Holman, 2003). Leaders turn to emotional intelligence to address these challenges, which can potentially …

Connectedness To Others Through Virtual Social Music Improvisation, Jody Webb

Dissertations

This mixed methods action research intervention study analyzed the influence of social music improvisation (SMI) on students' behaviors and perceptions of their connectedness to others in a virtual middle school classroom setting. Nine 10-minute SMI sessions allowed for the accumulation of data, with two additional pre-sessions being informative and exploratory to describe the SMI intervention and practice its aspects with participants in the intervention group. This study acquired pretest and posttest data from the Hemingway Measure of Adolescent Connectedness (Karcher, 2005) and observational information through process coding and field notes. Results showed how the presence or absence of SMI influenced …

Developmental Pathways From Player To Coach For Volunteers In An American Football Organization In Germany, Gary Cramer

Dissertations

The leadership style of organizational leaders is a key factor affecting volunteer coach recruitment and retention; yet the examination of developmental pathways from player to coach is lacking in the literature, especially as viewed from the perspective of those who are followers. The study addressed the following research question: How do volunteer coaches in an American football organization in Germany, who once played for the same head coach in the organization they currently coach, describe their pathway of development from player to coach? The purpose of this phenomenological case study was to inductively investigate the developmental pathways of volunteer sport …

Land-Atmosphere Interactions Over Cities : Urban Effects On Tree Canopy Temperature And Local Cloud Patterns, Thuy Trang Vo

Dissertations

Understanding land-atmosphere (L-A) interactions is critical for predicting Earth’s system and its functionality. This dissertation advances knowledge in three aspects involving L-A interactions at different scales. The first study asks how city-wide tree canopy temperatures vary diurnally, and what environmental factors and to what extent they contribute to its spatiotemporal variation. Despite the importance of urban trees’ surface temperature in assess-ing micro-climate interactions between trees and the surrounding environment, their diurnal evolution has been largely understudied at a city-wide scale. The research highlights the more important role of the greenspace coverage in controlling the daytime canopy temperature, while, surrounding buildings …

(Miss)Educated Latino Males: Academic Preparedness, Navigation, And Retention At 2-Year Colleges, Nannette Stephanie Regua

Dissertations

This study centers Latino males, first generation, first year students at four 2-year colleges in the Silicon Valley by understanding their experiences in transferable English 1A Writing Composition course and looking at the acts of instilling a sense of belonging and mattering by institutional agents and support services that are invaluable to student retention and success. The purpose of this study is to determine Latino male students’ perceptions of academic preparation, navigation, and success in higher education after the implementation of California Assembly Bill 705. My findings revealed important themes that map onto conceptual frameworks, most notably the Community Cultural …

Addressing Equity Gaps In Stem: A Self-Study, Prabhjeet Kaur Brar

Dissertations

The Hispanic/Latinx population is increasing nationwide and in the state of California; however, the Hispanic/Latinx population remains underrepresented in STEM professions contributing to a lack of diversity in STEM. To increase the academic success of the Hispanic/Latinx student population in STEM majors, high leverage research-based teaching strategies through the lens of historically responsive literacy were applied and examined throughout this research. The purpose of this mixed-methods self-study was to examine the impact of research-based effective strategies/high leverage practices on Latinx students’ success rates in my introductory biology classrooms. The study focused on two biology course sections with a laboratory. Each …

Odd Fellows: The Intersection Of Arminianism And Calvinism In The Writings Of Desmond Ford And F.F. Bruce, Samuel Pagán De Jesus

Dissertations

The Topic

In the 1970s, the Seventh-day Adventist church’s theological struggles over righteousness by faith and perfectionism revealed that Adventists were confused about their Protestant identity and what it meant to have the assurance of salvation. That struggle is exemplified in Desmond Ford’s writings. His doctoral studies under evangelical scholar F. F. Bruce prompted the Historic Adventists to wonder whether Ford had abandoned the Arminian synergistic soteriology for Calvinism’s monergism.

The Purpose

The purpose of this study was to explore to what extent Frederick F. Bruce’s Reformed views, theological assumptions, and commitments were shared by and reflected in Desmond Ford’s …

Embracing Mindfulness-Based Professional Development In Early Childhood Education, Drew Giles

Dissertations

There is a growing need for school districts to identify additional strategies to support the work-related stress and emotional labor ingrained in an early educator’s career. By orienting early childhood education (ECE) staff to mindfulness practices, education leaders may identify new approaches to assist early childhood educators’ well-being, building healthy work atmospheres, and activities to shift the culture in early childhood settings. This study employs a qualitative exploratory research design, specifically video documentary methodology to better understand how early childhood educators experience a mindfulness-based professional development (MBPD) program designed for ECE staff, explore what they say education leaders should know …

Evil, Ontology, And Scripture: A Diachronic Analysis Of Augustine Of Hippo's Privatio Boni Concept, Jamie G. Boucher

Dissertations

Augustine of Hippo’s Privatio Boni concept—the idea that evil is not a substance, but the privation of good in a substance—is the most influential early systematic theodical attempt within Christianity to exculpate a good God from responsibility for evil. By approaching Privatio Boni as the intricate interplay of Augustine’s views on evil, ontology, and Scripture, this dissertation aims to clarify misunderstandings surrounding the concept and determine if there is biblical warrant for it. Chapter 1 addresses issues of background, problem, purpose, and justification before introducing a delimited three-staged methodology of establishing context, engaging in diachronic analysis, and conducting a comparative …

Low Energy Availability, Disordered Eating, Exercise Dependence, Injury Prevalence, And Fueling Habits In Female Crossfit® Participants, Alyssum Reno-Smith

Dissertations

Disordered eating (DE) is primarily observed in endurance athletes and sports with aesthetics emphases. The prevalence of DE in resistance trained individuals, particularly CrossFit^®, is not well understood. CrossFit® promotes a culture encouraging strong, athletic, or muscular bodies, and both CrossFit® and endurance athletes aim to achieve a low body fat percentage to improve performance. This may lead to body dissatisfaction, exercise dependence (EXD), and/or DE behaviors, which may contribute to Relative Energy Deficiency in Sport (REDs). This cross-sectional study investigated DE prevalence and relationship with EXD risk, body dissatisfaction, and fueling habits in female CrossFit® only (CO) …

A Fully Automated Global Post-Hoc Method Based On Abstract Argumentation For Explainable Artificial Intelligence And Its Application On Fully Connected Dense Deep Neural Networks, Giulia Vilone

Dissertations

Explainable Artificial Intelligence (XAI) has rapidly grown in the past decade due to the prevalence of machine learning, especially deep learning, in fields like healthcare and finance. While these models excel in accuracy, their complexity hampers transparency and interpretability. Ensuring understandable explanations for AI predictions fosters trust, prevents errors, complies with regulations, and enhances model refinement. The research project outlined in this thesis unfolds in phases. It commences with a comprehensive review of existing XAI studies, contributing to the field’s knowledge by proposing a taxonomy that organises theories and notions related to explainability, the evaluation approaches for XAI methods, and …

Enabling Outer Planet Exploration : Performance And Feasibility Of Nuclear Thermal Propulsion For Rendezvous Missions, Saroj Kumar

Dissertations

Nuclear Thermal Propulsion (NTP) provides the compelling alternative between the chemical and electric propulsion systems for outer planet robotic missions. High-thrust and high-specific impulse (over twice the best chemical propulsion engine) NTP systems can enable outer planet missions that have been limited due to the large ΔV requirements. This dissertation identifies an enabling mission architecture and NTP engine thrust class for rendezvous missions to the Gas giant and Ice giant systems. The work presented in the dissertation demonstrates the performance impact of the NTP system and its feasibility for robotic missions using a systems engineering model driven by the model …

The Structural Basis Of Inflammation : Computational Characterization Of Molecular Mechanisms, Sara W. Jackson

Dissertations

Computational tools are useful in the interpretation and analysis of experimental data. In the world of structural biophysics, computational tools go a bit further: they can simulate atomic motions and molecular interactions based on experimentally-determined biomolecule structures, therein describing natural phenomena, and inspiring the formulation of new hypotheses. In this work, computational structural biology tools are used to answer questions about molecules of inflammatory importance. Quantum chemistry computational tools are used to determine the electronic structure of sesamin, a component of many diets which may be a modulator of an enzyme involved in the metabolism of inflammation mediators. Virtual docking …

Online Learning For Adaptive Control : Stable Learning And Control For Aerospace And Robotics, Jacob G. Elkins

Dissertations

Aerospace and robotic systems perform various tasks in uncertain, dynamic environments. Further, the data that a system encounters in the real-world is often the most valuable. The most advanced aerospace and robotic systems of the future will be able to learn online, during operation, from this real-world data. Aerospace and robotic systems are often expensive and difficult to model, and the controllers of these systems thus require rigorous control proofs and safety guarantees. Recently, general research in artificial intelligence and machine learning (AI/ML) has made significant strides in developing learning-based systems and controllers. However, much of this research has focused …

Understanding Battery Degradation And Failure With Impedance And Imaging Techniques, Megan F. Gober

Dissertations

With the increasing desire for fast charging capabilities in lithium-ion batteries due to the popularity of electric vehicles, research has recently been focused on increasing energy and power density while simultaneously revealing the need for improved understanding of degradation mechanisms to achieve the desired safety and fast charge performance. The work presented seeks to further understanding of mechanical, temperature, and electrochemical degradation mechanisms within varying battery chemistries and geometries through evaluation of impedance response and multiscale imaging techniques. First, in order to understand the limitations of mechanical and electrical integrity of battery systems, a combined application of impedance characterization and …

Liner Implosion Of Magneto-Inertial Fusion Plasmas Across The Periodic Table, Brian Dale Taylor

Dissertations

The goal of achieving net energy production from fusion reactions would have many positive and transformational impacts upon society and is therefore of great interest. Magneto-Inertial Fusion may be a path to achieving the high energy density requirements. One possible method for reaching the necessary plasma conditions is through a z-pinch driving a magnetized liner to compress and heat the fusion fuel. Progress has been made through both modeling and experiment, largely through Sandia National Laboratories, in recent years in developing this process and achieving neutron yields in the range of 1013 neutrons per pulse. Magnetized liner z-pinch experiments have …

Analysis Of A Magnetically Enhanced Microwave Powered Split-Ring Resonator Plasma Source For Micropropulsion, Andrew Walsten

Dissertations

This work focuses on better understanding split-ring resonators (SRRs) as plasma devices and exploring their use as a plasma source in a two-stage Hall thruster. This is done by first studying the effect of a single versus a coupled SRR on plasma production. Through the use of simulations in ANSYS HFSS and Langmuir probe measurements, it is found that coupled SRRs result in a more uniform plasma at higher pressures due to the introduction of a secondary ionization point, and the electromagnetic coupling resulting in a slightly stronger electric field being produced at the primary gap. Experiments were also done …

Depressurization Characteristics Of Steam-Based Reciprocating Vacuum Pump, Hongling Deng

Dissertations

This dissertation introduces a novel vacuum technology that leverages low-pressure saturated steam and cooling-controlled condensation, offering an efficient way to utilize low-grade thermal energy sources like waste heat, steam, or solar energy. At the heart of this technology is a unique duo-chamber vacuum pump system, featuring a reciprocating piston and a heat-conductive wall, designed to generate a vacuum through steam-condensation and cooling processes.

The core of this research lies in developing and validating mechanistic models for the steam-condensation depressurization process, a complex phenomenon involving phase change and transport mechanisms. Prior to this work, these mechanisms were not sufficiently modeled or …

The Role Of Semaphorins In Response To Injury In C. Elegans Neurons, Maria Belen Harreguy Alfonso

Dissertations

When neural tissue is injured by trauma, delicate neuronal processes such as axons and dendrites are prone to lesion damage and often disconnect. The molecular, cellular, and circuit mechanisms that underlie the regrowth and reconnection of these processes and the recovery of behavior are major challenges in the fields of neuroscience, regeneration, and resilience. At the molecular and cellular levels, signaling pathways that mediate neuronal growth cone guidance during development can play a role in neuronal regeneration and recovery from injury. One family of signaling proteins involved in this process comprises the highly conserved semaphorins and their receptors, the plexins. …

5g New Radio Access And Core Network Slicing For Next-Generation Network Services And Management, Abdullah Ridwan Hossain

Dissertations

In recent years, fifth-generation New Radio (5G NR) has attracted much attention owing to its potential in enhancing mobile access networks and enabling better support for heterogeneous services and applications. Network slicing has garnered substantial focus as it promises to offer a higher degree of isolation between subscribers with diverse quality-of-service requirements. Integrating 5G NR technologies, specifically the mmWave waveform and numerology schemes, with network slicing can unlock unparalleled performance so crucial to meeting the demands of high throughput and sub-millisecond latency constraints.

While conceding that optimizing next-generation access network performance is extremely important, it needs to be acknowledged that …

Model-Based Deep Autoencoders For Clustering Single-Cell Rna Sequencing Data With Side Information, Xiang Lin

Dissertations

Clustering analysis has been conducted extensively in single-cell RNA sequencing (scRNA-seq) studies. scRNA-seq can profile tens of thousands of genes' activities within a single cell. Thousands or tens of thousands of cells can be captured simultaneously in a typical scRNA-seq experiment. Biologists would like to cluster these cells for exploring and elucidating cell types or subtypes. Numerous methods have been designed for clustering scRNA-seq data. Yet, single-cell technologies develop so fast in the past few years that those existing methods do not catch up with these rapid changes and fail to fully fulfil their potential. For instance, besides profiling transcription …

Novel Photobase Generators For Photoinduced Polymerization And Ph Regulation, Shupei Yu

Dissertations

Photochemistry encompasses the investigation of chemical processes instigated by light absorption. As important branches of photochemistry, photosensitive and optical materials have attracted extensive research interests in both academia and industry. Photosensitive and optical materials are composed of polymers / small molecules with photo-responsive properties. These materials not only can absorb light in the desired energy spectrum, but also exhibit chemical / physical reactions, which can be applied to different fields such as photoredox, photo-heat, phototherapy, solar cells, diodes, etc. Among them, photobase generators (PBGs) are a series of photosensitive compounds, which absorb the incident light, then release the basic species …

Distributed Intelligence: Exploring Federated Paradigms Across Computing And Networking On The Edge, Yang Deng

Dissertations

Computer Graphics (CG) revolves around virtual content creation using computational methods, spanning applications from games to visual effects. Typically, the creation of CG content is led by expert practitioners who guide computational algorithms towards satisfactory results. Thus, creating CG content often requires manual iterations encompassing algorithm design, parameter tuning, and aesthetic feedback. This work investigates how to leverage crowd-sourcing to streamline such creation processes, focusing on animation and simulation. In animation, a novel crowd-sourcing framework is proposed for combat animation, enabling users to analyze motion similarities, and retrieve matching motions using novel crowd-sourced motion features. Such features enable quantifying previously …

Development Of Novel Protein Digestion And Quantitation Methods For Mass Spectrometic Analysis, Yongling Ai

Dissertations

Proteins are the workhorses of biology, playing multifaceted roles in maintaining cellular function, signaling, and response to environmental cues. Understanding their abundance and dynamics is pivotal for unraveling the complexities of biological processes, which underpins the foundations of molecular and cellular biology. Accurate measurement of protein quantities provides insights into cellular homeostasis, facilitates the discovery of biomarkers, and sheds light on the molecular mechanisms of diseases, bridging the gap between the molecular intricacies of proteins and their functional consequences in health and disease. The evolution of protein quantitation methodologies, from classical colorimetric assays to sophisticated mass spectrometry-based approaches, has expanded …