Digital Commons Network^™

Single-Shot Mev-Resolution Hard X-Ray Spectrograph For Cavity-Based X-Ray Free Electron Laser, Keshab Kauchha

Dissertations

The Cavity-Based X-ray Free Electron Laser (CBXFEL) is a possible future direction in the development of fully coherent hard X-ray sources of high spectral brilliance, a narrow spectral bandwidth of ≃ 1 − 100 meV, and a high repetition rate of ≃ 1 MHz. A diagnostic tool is required to measure CBXFEL spectra with a meV resolution on a shot-to-shot basis.

The CBXFEL hard X-ray spectrograph is designed to image 9.831 keV X-rays in a ≃ 200 meV spectral window and with a spectral resolution of a few meV using an LCLS XFEL (Linac Coherent Light Source X-ray Free Electron …

Exploring The Content Of Introductory Quantitative Methods Courses For Education Doctoral Students, Samantha Brooke Patterson

Dissertations

Quantitative methods training is an integral part of an Education Doctoral Degree (EdD). Students tend to struggle with the content of these courses and consequently their quantitative proficiency has suffered. Currently, there is no consensus on the learning outcomes of introductory quantitative methods classes, leaving instructors to individually decide the content and teaching methods of their classes. The aim of this study was to capture the content of introductory quantitative methods course and determine their alignment with current best practices in statistics education.

• Q1 What curricular and pedagogical techniques are used in introductory quantitative methods course for EdD students?
• Q2 …

The Inheritance And Breakthrough Of Twentieth-Century Harpsichord Music: Stylistic Analysis And Performance Guide Of Selected Works, Hanguang Wang

Dissertations

The twentieth century saw a notable revival of early music, with the harpsichord, one of the key instruments in this movement, gradually gaining attention as a vehicle for new compositions. However, most research still focuses primarily on early music, leaving the phenomenon and specific works of modern harpsichord music underexplored, despite the substantial body of compositions it has inspired.

This dissertation traces the development of harpsichord music across four historical periods, while also examining the stylistic and technical shifts in compositions from the eighteenth to the twentieth centuries. By analyzing Bohuslav Martinů’s Deux Pièces pour Clavecin, H. 244, and …

Faulty Perception Correction Of Autonomous Vehicles In Real-Life Driving Scenarios, Mark Omwansa

Dissertations

Driving is one of the most popular modes of transportation in the world. The United States Department of Transportation’s (USDOT) Federal Highway Administration (FHWA) reported 2.8 trillion vehicle-miles traveled (VMT) in 2020, and the National Highway Traffic Association (NHTSA) recorded 3.2 trillion VMT in 2019. Also recorded in the NHTSA report were 39,096 fatalities and 2.7 million injuries due to traffic accidents, costing the economy an estimated $242 billion. Most of these recorded accidents can be attributed to human error or misjudgment. It is for this reason that governments and the automotive industry are looking at autonomous vehicle (AV) technologies …

Public Health Implications Of State-Level Public Health Organizational And System Structures, Cameron Ferguson Hays

Dissertations

Public health thought leaders such as the Institute of Medicine and National Academies of Science, Engineering, and Medicine have long been concerned about the lack of standardization among state-level public health systems (IOM, 1988; NASEM, 2023). However, little research studies these systems, their structures, and whether structural constructs affect population health outcomes.

This study attempted to examine the structural constructs that make up these systems and the impact of those constructs using an exploratory sequential mixed-methods design. Variables from management science were qualitatively extracted from materials describing all 50 state-level public health systems. Those variables were then analyzed using a …

Benefits Of Alternative Discipline Practices In Lieu Of Exclusionary Discipline Practices According To Exemplary Public-School Elementary Principals (K-5/6) In Merced County, California, Mary Andrews

Dissertations

Benefits of Alternative Discipline Practices in Lieu of Exclusionary Discipline Practices

According to Exemplary Public-School Elementary Principals (K-5/6) in Merced County, California by Mary Binion Andrews

Purpose: The purpose of this phenomenological qualitative study was to identify and describe the school-wide structural, academic, and social–emotional strategies exemplary elementary public-school principals (K-5/6) have found effective for addressing defiant and disruptive student behaviors.

Methodology: This phenomenological qualitative study identified and described 12 exemplary public-school elementary principals (K-5/6) in Merced County, California and their perceptions of alternative discipline practices used in lieu of exclusionary discipline practices. Respondents were purposively chosen based on specific …

Attention Deficit/Hyperactivity Disorder In Secondary Instrumental Music Ensembles: A Qualitative Intrapersonal Inquiry, Christopher Sakowski

Dissertations

Executive function is deficient in individuals with ADHD. Playing a musical instrument has been shown to improve executive functions. This study examined if participants with ADHD perceived a connection between playing an instrument in a music ensemble and improved executive functioning, as well as improved ADHD presentations. The research design used for this study was a basic qualitative design, focusing on phenomenological intrapersonal inquiry. Data collection was done entirely through 60-120 minute semi-structured interviews with both music educators and non-music school personnel that participated in instrumental music ensembles as young students. Interviews were recorded using Zoom, transcribed using Microsoft Office …

The Lived Experiences Of Nurses Caring For Dying Pediatric Patients, Danna L. Curcio

Dissertations

The purpose of this research study was to explore the lived experiences of nurses caring for dying pediatric patients. Nurses and health care professionals may at times have difficulty adjusting and processing when life ends and this may have the potential to interfere with patient care. Reflection on past events and actions enable critical discovery of strategies to benefit both nurses and patients. The method for conducting this research study was from a qualitative phenomenological perspective exploring the lived experiences of nurses caring for dying pediatric patients. The philosophical underpinning of Merleau-Ponty (2008), in combination with the research method of …

The Relationship Between The Perception Of Nurse Caring, And The Phase Ii Cardiac Rehabilitation Patients' Depression, Anxiety, And Adherence, Jo Ann Kim

Dissertations

The purpose of this study was to determine if there was a relationship between perception of nurse caring and Phase II cardiac rehabilitation (CR) participant's depression, anxiety, and adherence. Duffy and Hoskins (2003) Quality-caring model © was used as a theoretical framework to guide the descriptive correlational study. A convenience sample of 109 outpatients lived in the mid-Atlantic portion of the United States. The four data collection instruments included the Center for Epidemiological Studies-Depression Scale (CES-D), State-Trait Anxiety Inventory- Y-1 (STAI-Y-1), Caring Assessment Tool-IV (CAT-IV), and a Phase II CR Patient's Program Data Sheet. Pearson's product-moment correlational analysis was used …

Emergency Preparedness Curriculum: Essential Skills For Nurses Responding In Disasters, Sallie J. Shipman

Dissertations

The purpose of this study is to examine the lived experiences of nurses first time responding to a civilian disaster response in shelters or temporary community medical clinics in an attempt to identify the essential knowledge and skills necessary to provide care to disaster victims. The theoretical framework for this study was the theory of novice to expert, experiential learning, clinical reasoning, and using real life situations to develop the student's sense of salience by Benner et al. (1996, 2009; 2010).

A Qualitative Exploration Of Associate Degree Nurse Educators' Teaching Experiences Regarding Health Literacy, Connie Marshall

Dissertations

Worldwide health literacy levels are low. Nurses should be able to lead the improvement of the health literacy of the populations they serve. During a comprehensive review of the literature, it became apparent that previous research regarding the provision of health literacy education within Associate Degree Nursing programs was not available. The Associate Degree is the initial degree that allows the graduate to take the NCLEX-RN board exam, so it was interesting to determine how learners are prepared to discern the health literacy levels of the patient population. The research question, "How do nurse educators describe their experiences with health …

Accountability For Unethicality: Monitoring, Policy, And Individual Attitudes, Sara Marie Lewis

Dissertations

This research examines the mechanisms that can be used to reduce unethical behaviors, as well as their influence on employee attitudes (e.g., trust, justice, job satisfaction, and organizational commitment). Using an experimental design, participants were exposed to varying levels of accountability, monitoring, and policy to examine their interaction effects on unethical behaviors and attitudes. Two significant interactions emerged when looking at the mechanism's influence on attitudes. Policy clarity had a significant main effect on employee justice perceptions, with vague policies reducing perceptions of justice. The interaction between clear policy and accountability significantly impacted justice perceptions, highlighting the value of accountability …

Transition To Practice Of New Graduate Nurses In The First Year Of Employment At A Rural Healthcare System, Deena Woodall

Dissertations

The nursing workforce crisis has highlighted the need for effective transition to practice (TTP) for new graduate nurses (NGNs). In 2021, only 20% of NGNs in the US were considered practice-ready. The use of Nurse Residency Programs (NRP) was highlighted as the best approach for improving competencies and practice readiness. However, the assessment of NRP effectiveness is limited, particularly in rural hospitals.

Impact Of Brief Group Sessions On Anxiety And Coping In Primary Caregivers Of Those With Rare Disorders, Andrea I. Bowling

Dissertations

The purpose of this study is to evaluate the impact of virtual support sessions for caregivers of those with rare diseases on anxiety and coping. Caregivers of loved ones with rare diseases experience many challenges that may increase anxiety. These may include managing the long-term effects of the disorder, early mortality, or concerns about leaving their adult loved one without a caregiver. Stressors associated with providing care to chronically ill family members may impact psychological and physical well-being.

The Future Of Physical Education And How Instructional Technology Is Pivotal In Curriculum Design And Learner-Centered Instruction, Josh Mcmillian

Dissertations

The COVID-19 pandemic significantly altered K-12 education, compelling physical education (PE) instructors to adapt swiftly to remote teaching. This dissertation explores the integration of instructional technology among Missouri PE teachers, analyzing practices before, during, and after the pandemic. Utilizing a phenomenological approach, the study surveyed 106 educators and conducted 12 in-depth interviews, revealing widespread use of technologies such as heart rate monitors, fitness apps, and platforms like Google Classroom.

Findings highlight that school climate, access to resources, and teacher training are pivotal in technology adoption. Veteran teachers demonstrated greater proficiency with advanced tools, while novices showed adaptability but required foundational …

Aligning Perspectives: A Comparative Analysis Of Teachers’ And School Leaders’ Perceptions Of Professional Development Efficacy, Nina Hollis

Dissertations

Professional development has become a staple in the educational landscape, with gaining importance in further education and enhancing one's career as an educator. Professional development is all about updating teachers with the latest knowledge and techniques, found by research, to effectively increase teaching skills. This study investigates the professional development experience of educators and school leaders in relation to their perceptions about professional development. These themes were created in the data analysis to include educators' roles in the classroom, school level, level of degree held, years of experience, subjects taught, and years of professional tenure to get full insight into …

Undergraduate Nursing Students' Test Anxiety And Performance Based On Testing Time Limits, Miranda E. Knapp

Dissertations

Test anxiety is a debilitating problem for many prelicensure nursing students. Effects of test anxiety can result in poor academic performance, inability to complete programs or pass license exams, and ultimately contributes to nursing shortages. Faculty-based methods to decrease nursing students’ test anxiety levels have not been thoroughly explored. Testing time limit suggestions vary significantly from one minute per question to more than two minutes per question. The effects of different testing time limits on test anxiety levels, testing duration, and testing performance has not been studied.

The Implementation Of Stream In Mathematics Classrooms In Abu Dhabi Primary Schools: Prospects, Priorities, Processes, And Problems, Nadeia Rashed Alalawi

Dissertations

This study shed light on implementing science, technology, reading and writing, engineering, art, and mathematics (STREAM) in mathematics classrooms in Abu Dhabi primary schools. The study aimed to explore mathematics teachers’ views on the prospects, priorities, processes, and problems of the implementation of STREAM in their classrooms. The study employed qualitative methods to collect and analyze data to support the findings using interviews, classroom observations, and document analysis. Fifteen in-service mathematics teachers were interviewed to explore their views about the application of STREAM in their classrooms regarding prospects, priorities, processes, and problems (4 Ps). Then, three of them were observed …

Tackling Toxicity And Harassment In Online Environments Through The Use Of Artificial Intelligence, Heba Saleous

Dissertations

With the increase in popularity of online communities, such as social media platforms, online games, and chatroom servers, there is a need to improve chat and content moderation. Platforms have reported an increase in the prevalence of toxic behavior and hate speech. Meanwhile, moderators are reporting difficulties in keeping up with the amount of data to check as well and the type of content they are exposed to, which further harms their own mental health. The main objective of this work is to address the challenges that exist within online communities with the rising prevalence of hate speech. Additionally, some …

Navigating The Beliefs, Practices, And Challenges Of High School Principals And Teachers Within Culturally Diverse Contexts: A Mixed-Method Study, Mouza Alketbi

Dissertations

The main objective of this study is to understand the practices, beliefs, and challenges related to cultural diversity among high school principals. It also examines the cultural diversity practices of high school principals from the perspective of teachers, as well as the challenges they encounter when interacting with principals and teaching staff. The study used an exploratory sequential mixed method design, incorporating both qualitative and quantitative methods to gain a better understanding of how high school principals handle their culturally diverse teachers. The first phase involved qualitative research, where (n=5) principals and (n=7) teachers were purposively selected. Semistructured interviews were …

The United Arab Emirates Birth Cohort Study: A Pilot Examination Of Maternal And Infant Health Outcomes, Sharon Mutare

Dissertations

The first 1,000 days of life represent a critical window for influencing optimal fetal growth and establishing lifelong health foundations. Recent evidence underscores the significant association between maternal health and nutrition during this period and the subsequent risk of non-communicable diseases, which are responsible for 74% of global deaths. Despite the rapid globalization and urbanization experienced in the United Arab Emirates in recent years, there remains a paucity of research on how maternal health and nutrition impact perinatal outcomes among Emirati women.
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/="/">The primary objective of this dissertation was to profile the nutritional habits, status, and lifestyle of …

Leveraging Social Practices In The 11th Grade American Literature Classroom: Video Games As Texts, Alora Moser

Dissertations

This quasi-experimental study explores the effectiveness of using a video game as a text in high school narrative instruction, testing Lave and Wenger’s (1991) situated learning theory, which posits that learning is a by-product of social interaction. This study seeks to bridge the gap between literacy practices at home and in school (Beavis, 2014; Ladson-Billings, 1995), effectively acknowledging students’ cultural capital, including multiliteracies (New London Group, 1996) and affinity spaces (Gee, 2013) in privileged academic settings such as the Georgia Milestones American Literature End of Course assessment. 11^th grade American literature students in a suburban Georgia high school were …

Pre-Service Teachers Conceptions Of Equity In Secondary Mathematics Education, Mariah Walton

Dissertations

This study investigated how pre-service mathematics teachers (PSMTs) understand equity-based pedagogies and apply equity-based pedagogical methods in their instructional planning. A central goal among educators is improving the academic achievement of racially minoritized groups, such as Black and Latinx students, who are often overlooked by traditional pedagogies. This goal has shaped the foundation of culturally relevant pedagogy and other equity-based teaching approaches. This research study focused on the intersection of equity-based pedagogical methods and secondary mathematics teaching and learning involving PSMTs in the third year of their teacher education program. Through an analysis of a discussion post assignment, a focus …

Fear, Distress, And Dissociation: Correlates Of Physiological Hyporeactivity After Interpersonal Victimization, Natalia Kecala

Dissertations

Background and Objective: Despite consistent findings of high reactivity to trauma cues in PTSD, there exists a consistent subset of physiological nonresponders who exhibit more complex and severe posttraumatic symptomatology. Research has identified different patterns of defensive reactivity representing Fear (core) and Distress (complex) PTSD symptoms. However, no studies have directly compared responders and nonresponders on physiological and clinical symptoms posttrauma.

Method: 66 adult women who had experienced first-degree sexual or physical assault within the last month were categorized using heart rate reactivity (HRR) to two personalized trauma scripts. Participants exhibiting negative HRR to both scripts were classified as nonresponders …

Nursing Faculty Members' Intentional Use Of Strategies That Promote Civility In The Bsn Classroom, Linda-Jo Pallotto-Russo

Dissertations

The purpose of this case study was to gain an understanding of nursing faculty members' intentional use of three research-based strategies that have been shown to promote civility in the BSN classroom. Specifically, Ajzen's (1985) Theory of Planned Behavior (TPB) was used to analyze nursing faculty members' reports of their attitudes, normative beliefs, and control beliefs about the use of three research-based strategies that have been shown to promote civility in their classroom. Azjen theorized that individuals base their behaviors on intention and intentions are based on the individuals' attitudes toward the behavior, their perceptions of how others wanted them …

The Effect Of Attitudinal Dynamics Of Inpatient Nurses On The Use Of A Mobile Electronic Health Record, Mark Ambler

Dissertations

The implementations and ongoing use of mobile information systems could enhance nursing workflows at the point of care. However, when a system is not perceived as easy to use or useful, the frequency of its use is decreased. This non-experimental quantitative study conducted a survey of inpatient bedside nurses and nurse leaders to determine how their perceptions and attitudes affected the use of mobile technology. Statistically significant positive correlations were found when the participants were asked if the mobile system gave them greater control over their work. A statistically significant relationship was found between bedside nurses and nurse leaders, where …

Student Nurse Perspectives On The Impact Of Longitudinal Home Visits To People With Dementia And Their Carers, Wendy J. Grosvenor

Dissertations

Multiple deficits have been identified in dementia education by UK policy makers and, from September 2015, the Department of Health mandated that undergraduate healthcare curricula included dementia. Here I explore one particular novel approach, the Time for Dementia Programme, which had at its core longitudinal learning from people with dementia and their carers.

The study aimed to evaluate the impact of visits to the homes of people with dementia and their carers as part of the Time for Dementia Programme. To do this it explored adult nursing students' perceptions of their professional learning and practice and career destination.

Shelf Space Strategy In Alcoholic Beverage Retail: Analyzing The Impact Of Shelf Facings On Sales Performance And Consumer Behavior, Jesse Core

Dissertations

The alcoholic beverage industry faces intense competition and regulatory constraints, making strategic shelf space management critical. This study investigates the impact of shelf facings on sales performance in the alcoholic beverage sector, focusing on how brand size moderates this relationship.

The study collected data from a regional supermarket chain in Arkansas using a quantitative pretest-posttest control group design. It found that increasing shelf facings for smaller brands significantly enhances overall modular sales, with small brand sales persisting even after reverting to their original facings. Moreover, the analysis reveals that brand size significantly moderates the impact of shelf facings on brand …

The Lived Experience Of Faculy Support With Generation Z Pre-Licensure Baccalaureate Nursing Students, Amy Shearer

Dissertations

Baccalaureate nursing education requires a high level of academic performance for both acceptance and completion of the program. Nursing students often identify faculty as a source of support to persevere through this rigorous educational program. In 2013, a new generation of students entered nursing education: Generation Z. It is unclear as to how the unique characteristic of Generation Z will align or differ with Millennial nursing students regarding their need for faculty support. Husserl's descriptive phenomenological method was used to explore pre-licensure baccalaureate Generation Z nursing student experiences of faculty support.

The Meaning Of Life’S Broken Fragments: A Constructive Theology Of Fragmentation Grounded In Dietrich Bonhoeffer’S Theological Ethics, Meghan Toomey

Dissertations

Understood comprehensively, Dietrich Bonhoeffer’s legacy offers contemporary American Catholicism a contextual approach to theological ethics that can meaningfully inform the development of an ethics of resistance to totalitarian and pseudo-religious forces that dominate U.S. politics today. Unfortunately, Catholic scholarship on Bonhoeffer overall has failed to grasp the full scope of his work and to incorporate his biography and the historical and theological context in which he lived. This dissertation brings Bonhoeffer into dialogue with modern and postmodern American Catholic theological contexts, specifically engaging Bonhoeffer’s concept of analogia relationis, his incarnational Christocentrism, and his embrace of contextual ambiguity. This dissertation is …