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Leveraging High-Performance Cloud Computing To Model Underwater Acoustic Propagation And Scattering From Time-Evolving Rough Sea-Surfaces Using The Finite-Difference Time-Domain Method, James Alexander Higgins

Dissertations and Theses

This dissertation presents a two-dimensional (2D) Finite-difference Time-domain (FDTD) model for simulating underwater acoustic propagation and scattering from a one-dimensional (1D) time-evolving rough sea-surface. The techniques discussed are extendable to three spatial dimensions. Traditional acoustic modeling techniques often rely on a "frozen" sea-surface assumption, which proves inadequate for long-duration signals interacting with the time-evolving boundary at many different wave height displacements during its transit. To address this, a new FDTD update equation incorporating a variable subgrid is developed, significantly enhancing spatial accuracy at the boundary without increasing computational cost or compromising stability.

The model's accuracy is rigorously validated against established …

Communication Strategies Finance Leaders Use To Increase Employee Productivity And Organizational Profitability, Tricia Ashbourne

Walden Dissertations and Doctoral Studies

Abstract A lack of effective communication strategies to increase employee productivity and profitability is a concern among leaders in the finance industry. This problem is important because, without such strategies, organizations might experience decreased employee morale and misalignment, which could reduce productivity and profitability. Grounded in leader–member exchange theory, the purpose of this qualitative pragmatic inquiry was to identify and explore the effective communication strategies that senior finance leaders use to increase employee productivity and organizational profitability. Participants were six senior leaders from the finance industry in the Cayman Islands, each with at least 5 years of executive responsibility over …

Navigating The Shadows: A Phenomenological Exploration Of The Psychological Well-Being Of Coachees From Strengths-Based Coaching, Lorenzo Moultrie

Walden Dissertations and Doctoral Studies

Organizations may experience negative impacts, such as the loss of valuable employees and disruptions in team dynamics, when coaching interventions lead to challenges against organizational norms or policies. Coaching industry leaders must understand the negative impacts as indicators of workplace vulnerability affecting employees and productivity. The purpose of this qualitative phenomenological study was to explore how coachees describe their lived experiences of strengths-based coaching (SBC) and its impact on their psychological well-being (PWB). The SBC’s dual outcomes on PWB, using a conceptual framework that integrates positive psychology coaching, Ryff’s model of PWB, and social exchange theory, grounded this study. The …

Return Of Ospree: In Situ Spectroscopic Measurements During Atmospheric Reentry, Ashwin P. Rao, Jack D. Crespo, Paolo Valentini, Vanessa J. Murray, Erin I. Vaughan, Zach Davis, Robert Alviani, Marat Kulakhmetov

Space Dynamics Laboratory Publications

Optical emission spectroscopy (OES) measurements of the reentry shock layer can provide invaluable information about the dynamic aerothermal chemistry during atmospheric reentry and yield critical data needed to improve fluid dynamics modeling of reentry systems. On 28 February 2025, the Air Force Research Laboratory successfully executed the Optical Sensing of Plasmas in the ReEntry Environment (OSPREE) experiment using Varda Space Industries’ W-2 hypersonic test-bed vehicle, obtaining in situ shock-layer radiative emission measurements during reentry from an altitude of 105 km down through 50 km, encompassing a range of Mach numbers between 29.5 and 15.0. We present a summary of the …

Spatial Ecology And Population Dynamics Of Chukar Partridge, Jacob Taft Barnes

Theses and Dissertations

Chukar (Alectoris chukar) are a non-native bird that has naturalized in North America following its introduction over a century ago. Today, the species supports hunting opportunities in 11 U.S. states and one Canadian province. Despite its wide distribution and recreational value, key aspects of chukar ecology remain poorly understood. Limited information is available on the species' spatial ecology, including patterns of space use. Likewise, information regarding the influence of weather on population dynamics of chukar has not been formally conducted. As part of our investigation, we evaluated the space use of chukar in western Utah, USA utilizing GPS transmitters (Chapter …

Mae Enewsbrief July-Sept 2025, Department Of Mechanical And Aerospace Engineering, Michigan Technological University

Department of Mechanical and Aerospace Engineering eNewsBrief

No abstract provided.

Und Leads Implementation Team Meeting Agenda — December 16, 2025, University Of North Dakota

LEADS Implementation Documents

Agenda for the December 16, 2025 meeting of the UND LEADS Implementation Team. The agenda includes subgroup reports and review of Kelley Award nominees.

Implementation And Outcomes Of A Digital Onboarding Taskforce In The Acute Care Setting, Julianna Lenoir, Alexzandra Gentsch, Akshay Krishnan, Jeffrey Ndubisi, Marissa Witmer, Kristin L. Rising, Brooke Worster, Angela M. Gerolamo

Jefferson Center for Connected Care Faculty Papers

INTRODUCTION: Use of digital health technology can improve patient health outcomes; however, not all patients have the knowledge and skills to download a health app and access a patient portal. Providing digital onboarding support to hospitalized patients has potential to overcome some barriers to accessing needed education in the community, including both having the time and a location to receive education. To address this, our team developed the Jefferson Digital Onboarding Taskforce (JeffDOT), a group of staff and students who approach hospitalized patients and provide one-on-one teaching on how to sign up for and use a patient portal.

METHODS AND …

The Influence Of A Worship And Arts Camp Experience As A Student On Future Worship Leadership: A Case Study, Rhea Marshall

Doctoral Dissertations and Projects

The world began with God’s act of creation, and He made humans in His image, giving them the innate ability to create. The Bible shows many examples of this creativity in people’s lives. Worship arts allow believers to reflect God’s image through artistic expression. The apostle Paul encourages the church to dedicate their bodies as living sacrifices as an act of worship. Worship arts enable individuals to offer their creativity to God through their bodies. Significant progress has been made in how the church develops worship arts ministries. The primary focus has been on how participation influences adult church members. …

A Causal-Comparative Study Of Student Perception Of The Usefulness Of Llms For Academic Achievement Among Business Technology Course Levels (200, 300, And 400) When Comparing Free Versus Paid Llm Access, Wendy Chun

Doctoral Dissertations and Projects

The purpose of this quantitative causal-comparative study was to determine if there is a difference in student perceived usefulness of large language models (LLMs) for academic achievement among undergraduate business students at different business technology course levels (200, 300, and 400) when comparing access to free versus paid LLMs. This study is important because it contributes to a practical understanding of the impact of LLM-assisted learning on students' perception of how LLMs contribute to academic achievement at the undergraduate level; therefore, this study contributes to the literature by providing empirical-based information on how a student perceives the effectiveness of using …

The Lived Experiences Of Implementing Social-Emotional Learning Competencies In The Classroom Of Teachers In A Southern State: A Phenomenological Study, Lakenya King

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study was to explore the lived experiences of teachers in a southern state who implemented social-emotional learning (SEL) competencies in the classroom. The study was guided by Goleman's theory of emotional intelligence (EI), which focused on SEL needs and benefits. The central research question was: What are the lived experiences of teachers who implemented SEL competencies in the classrooms in a southern state? This study used a transcendental phenomenological design to gain insight into the phenomenon from 10 teachers in a public district in a southern state who implement SEL competencies in the classroom. …

Accurate Imputation Of Pathway-Specific Gene Expression In Spatial Transcriptomics With Pasta, Ruoxing Li, Peng Yang, Mauro Di Pilato, Jianjun Zhang, Christopher R Flowers, Lulu Shang, Ziyi Li

Faculty, Staff and Student Publications

Mapping the entire transcriptome at single-cell resolution under its natural spatial context is essential for investigating the oncogenesis and progression of diseases. The recently emerged targeted in-situ technologies retain the spatial organization of cells at high resolution, although they remain limited in the number of genes that can be simultaneously measured. To overcome this obstacle, numerous computational methods have been developed to predict unmeasured gene expression in spatial transcriptomics data by leveraging scRNA-seq data. Most of these methods focus on the expression of individual genes and usually generate highly variable predictions. In this study, we introduce PASTA (PAthway-oriented Spatial gene …

Hollywood, Ai, And The Moral Universe: An Analysis Of The Terminator And Battlestar Galactica, Lara Sumera Samms

Masters Theses

This thesis defends the argument that depictions of artificial intelligence in Hollywood film and television point to a moral universe. Films The Terminator (1984) and Terminator 2: Judgment Day (1991), as well as the television series Battlestar Galactica (2004-2009) are analyzed to find clues of moral facts. This research paper submits that these stories add weight to the moral argument and provide evidence that humans implicitly recognize a moral universe. Such acknowledgment of moral structures cannot be adequately explained within a secular framework such as utilitarianism or evolutionary ethics. However, the Christian worldview frames reality around the existence of God, …

Successful Treatment Of Comorbid Sapho Syndrome And Hidradenitis Suppurativa With Upadacitinib, Deepika Narayanan, Tiffaney Tran, Valeria Duque-Clavijo, Hung Q Doan, Stephen K Tyring

Faculty, Staff and Student Publications

No abstract provided.

How Racism Affects Attitudes About Post-Secondary Education, Anne Duong

Masters Theses (Archived)

As the number of students of color in America continues to increase each year, these minority groups remain underrepresented in higher education. The educational system must adapt and make changes to better serve the diverse cultures and backgrounds of new students. Recognizing the presence of structural and systemic racism in American history, this research aims to explore whether racism affects students' learning experiences in K-12 schools and how this, in turn, influences their attitudes toward pursuing post-secondary education. The study focuses on high school students in 12th grade from a Texas public school, representing the backgrounds of students of color. …

What Are The Effects Of Implementing Effective Restorative Practices In The Classroom?, Liana V. Rios

Masters Theses (Archived)

This qualitative case study examines the implementation of restorative practices in an elementary classroom, focusing on their impact on students’ social, emotional, and academic development. Data was gathered through observations, student journals, surveys, and feedback from school administrators. Five themes emerged from the analysis: improved emotional regulation, increased student voice, relational changes, academic gains, and a supportive environment. The results indicate that restorative practices effectively reduce conflicts, empower students, and foster positive teacher-student relationships, while also increasing academic engagement. Parental feedback further supported these findings, highlighting increased confidence and more positive attitudes toward the school environment. While external variables influenced …

A Proteogenomic Gene Signature Defines Prognostic Subgroups Highlighting Pi3k/Akt/Mtor Signaling Pathway As A Therapeutic Vulnerability In Myeloid Malignancies, Fan He, Shuyang Lin, Bei Gao, Varun Ramesh, Alexander B Kim, Tim Kong, Daniel A C Fisher, Christopher T Letson, Molly Brakhane, Mary Fulbright, Yanbo Yu, Marco Sardiello, Jorge Di Paola, Stephen M Sykes, Stephen T Oh

2020-Current year OA Pubs

INTRODUCTION: Myeloid malignancies, including acute myeloid leukemia (AML) and myeloproliferative neoplasms (MPN), exhibit overlapping pathophysiology. Chronic MPNs can transform into secondary AML (sAML), which is associated with poor prognosis and limited treatment options. However, the process and prognostic significance of leukemic transformation remain incompletely understood.

METHOD: Through a two-sample bidirectional Mendelian randomization (MR) analysis, we showed that genetic liability to MPN significantly predicts the risk of developing AML, establishing MPN as the precursor to leukemia. To identify mediators of this risk, we integrated population-level plasma proteomics data, identifying 55 proteins associated with MPN. Upon integrative analysis with the BEAT-AML cohort, …

Prevalence And Factors Associated With Regular Fast-Food Consumption Among Adults In The Uae: A Cross-Sectional Study, Ala Al Rajabi, Rafiq Hijazi, Lynne Alexandra Kennedy

All Works

Objectives: To assess the prevalence and identify sociodemographic predictors of regular fast-food consumption (R-FFC) among United Arab Emirates (UAE) adults to inform public health nutrition responses to growing diet-related ill health in the region. Design: This is a descriptive cross-sectional study using purposive, convenience sampling. Data were collected using an online survey adapted from two validated surveys and distributed via social media platforms. R-FFC was defined as visiting a fast-food restaurant to eat ≥ 2 times/week. Pearson’s χ ² tests and multiple binary logistic regression models were used to investigate prevalence and predictors of R-FFC. All statistical significance was considered …

Beheld To Behold: A Rhetorical Theology Of Otherness In Acts, Hannah E. Gross

Masters Theses

The phenomena of otherness foundationally grounds this work. A micro-concept of Martin Buber’s I and Thou Theory, otherness is central to this study particularly as it is rhetorically situated in the work of Acts. The research draws from ideological criticism to produce a rhetorical theology. Findings uncover two primary relational dynamics of otherness: (1) God to the believer to the unbeliever and (2) God to the believer to the believer. These constructions of dialogical engagement in Acts are donned witness and withness, offering keen insight on a rhetorical theology of otherness.

Aeolian Tones: A Book Of Minor Poetry About Isolation And The Space Between Disconnection And Connection, Thaddeus Tague

Masters Theses

This is the artistic statement for Aeolian Tones, the poetry chapbook that will serve as my thesis. In this accompanying paper, I explore the vision, process, and inspiration behind the various themes in the chapbook, as well as the overall goal. I hope to provide personal context for the writing's purpose, as well as offer reflections and interpretive guidelines for how the poetry can and should be understood. In this work, I aim to provide a space for readers seeking reflections on loneliness, healing, profound pain, and disconnection.

Next, the literature review will examine ten modern works of minor non-epic …

Operation Evil Empire: The Strategic Weaponization Of Rhetoric In Psychological Warfare, Sabrina Marie Smith

Masters Theses

The Cold War redefined warfare around information, ideology, and perception. Victory depended less on territory and more on legitimacy. In 1983, Cold War tensions between the United States and the Soviet Union were extremely high. President Ronald Reagan’s “Evil Empire” speech emerged at a critical juncture, marking a pivotal moment when U.S. foreign policy embraced assertive ideological confrontation. The rhetoric of this speech did more than address the American public; it served as a strategic instrument aimed at weakening Soviet ideological cohesion. It became a turning point in U.S. Cold War rhetoric, targeting both the Soviet leadership and its oppressed …

The Ultra Dilemma: Understanding The Impact Of Ultra-Processed Food, Cassia Elizabeth Brenning

Masters Theses

Ultra-processed food dominates the market, making up an estimated 73% of the national food supply and costing 52% less than healthier, minimally- processed alternatives (Ravandi et al). With such a large supply, there is a great demand to sell these products to consumers. Major food corporations rely on misleading labels, heavy marketing, and industry-funded research to manipulate consumers into buying more of their products. While these products are cheap, quick, convenient, and delicious, they are not components of a healthy diet.

This thesis argues that the best way to tackle the issue of ultra-processed food is by redirecting focus from …

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Exploring Spiritual Coping And Anxiety Reduction In Military Personnel Transitioning Through The Meb Process And Undergoing Vocational Training: A Qualitative Approach, Camron L. Rawls

Doctoral Dissertations and Projects

This qualitative study examined how transitioning military service members (TMSMs) navigating the Medical Evaluation Board (MEB) and the Integrated Disability Evaluation System (IDES) used spiritual and vocational resources to manage stress and cope with identity loss. Using an interpretative phenomenological analysis (IPA) approach, semi-structured interviews were conducted with 10 participants enrolled in or recently completing the Ch. 31 Veterans Readiness & Employment (VR&E) or another vocational training program. The interviews were audio recorded, transcribed, and analyzed through repeated cycles of coding, memoing, and theme development. Six major themes emerged: (1) bureaucratic confusion and identity disruption that increased anxiety and led …

Leaving The Fold: Young Adult Disaffiliation From Protestantism In Political And Cultural Context, Kimberly S. Johnson

Doctoral Dissertations and Projects

This study investigated the lived experiences of young adults who have disaffiliated from a Protestant church, focusing on political, national, and religious dynamics, including reflections on Christian Nationalism. The study also examines how these meaning-making processes informed participants’ retrospective accounts of disaffiliation. Building on the quantitative research that has dominated prior studies, this study employed interpretative phenomenological analysis to investigate how encounters with Christian Nationalism have shaped perceptions of organized religion. The study’s ten participants ranged in age from 21 to 29 years old and identified as having been part of the Protestant Church prior to disaffiliating from organized religion. …

Covid-19 Event Impact: Religious/Spiritual Coping And Posttraumatic Growth In Adult Female Survivors Of Childhood Sexual Abuse, Mindy Barrett Perlman

Doctoral Dissertations and Projects

The COVID-19 pandemic presented a unique collective trauma that has disproportionately impacted vulnerable populations, including adult female survivors of childhood sexual abuse (CSA). This quantitative, non-experimental, correlational study examined the relationship between spiritual/religious coping and posttraumatic growth (PTG) among this population, while also exploring the psychological impact of the COVID-19 pandemic and the mediating role of religious/spiritual coping. Grounded in Tedeschi and Calhoun’s Posttraumatic Growth Theory and Pargament’s Religious Coping Theory, this study utilized the Posttraumatic Growth Inventory (PTGI), the Brief Religious Coping Scale (Brief RCOPE), and the Impact of Event Scale–Revised (IES-R) adapted for COVID-19 to assess trauma exposure, …

Exploring Long-Term Trauma In Children Following Early Nicu Hospitalization: A Qualitative Study Of Maternal Perspectives, Genee Leniece Francis

Doctoral Dissertations and Projects

Adverse childhood experiences (ACE) are hardships that occur in the life of a child before the age of 18. The purpose of this phenomenological study was to describe the experiences of mothers whose child was hospitalized in a NICU during the first 2 months of life, focusing on traumatic injury or long-term trauma symptoms, as evidenced by intellectual delays, emotional regulation issues, or behavioral challenges in children. Purposeful, criterion, and snowball sampling were used to identify English-speaking participants over the age of 22 who served as a primary caretaker of a child currently between the ages of 4 and 11. …

Educators’ Understanding And Implementation Of Compliance Of The Iep Process For Students With Disabilities In A Northeastern United States Charter School: A Qualitative Intrinsic Case Study, Lamarr Re'nee Riddick

Doctoral Dissertations and Projects

The purpose of this single intrinsic case study was to understand educators' knowledge base of the IEP process at a charter school in the Northeastern United States. The theory guiding this study was the social constructivism theory by Vygotsky. The constructivism theory by Vygotsky is a student-centered approach to learning that is integral for students with disabilities to have the skills taught to them in a functional, individualized setting. This design employed a single-case study methodology that followed the strategic criteria established through an intrinsic investigation. The sample of 10 participants yielded a study that shed light on reality, presenting …

An Examination Of Perceptions Of Strangers' Trustworthiness: A Comparison Of Religious Beliefs, Angelia Theresa Hogan

Doctoral Dissertations and Projects

When Panikkar wrote that the “meeting of religions is an inescapable fact of today,” he was describing the very premise of this study. The continual social interactions between people of different faiths and beliefs require an understanding of both perceptions and prejudices in order to help foster trust and cooperation in a global setting. The availability of current data on unimpeded and immediate perceptions of the social trustworthiness of a photographed face on the part of people of different religious beliefs is sorely lacking. This study examined whether people with six different religious affiliations assigned different levels of trustworthiness to …

Bridging The Gap: Optimizing Outpatient Care Delivery In Rural Kenya Through A Telemedicine Workflow Training Initiative, Elizabeth K. Bennett

Doctoral Dissertations and Projects

Access to timely, high-quality outpatient care in rural Kenya is constrained by workforce shortages, geographic barriers, and inefficiencies in care delivery. This Doctor of Nursing Practice project evaluated the impact of implementing a structured telemedicine workflow and training program for a regional mission hospital in the highlands of Western Kenya and its satellite outpatient clinic. Guided by the Iowa Model of Evidence-Based Practice, Kotter's Change Theory, and the reach, effectiveness, adoption, implementation, and maintenance (RE-AIM) framework, the project employed a quasi-experimental, pre-post design, with eight medical providers participating in structured workshops, interactive telemedicine simulations, and workflow integration exercises. Impacts were …