Digital Commons Network^™

Hierarchy Viz: A Visual Analytics Framework For Visualizing Hierarchical Data Using Machine Learning, Vinay Kumar Uppalapati

Theses and Dissertations

Automated visualization systems aim to generate visualizations directly from raw data with minimal user inputs. However, while existing systems focus on data visualizations mainly using line charts and scatter plots to explore the data patterns, they struggle with hierarchical data representation where data relationship is essential. Hierarchical visualization, crucial for understanding multi-level relationships, typically requires users to manually define hierarchies and have expertise in visualization tools to create meaningful representations. This makes the process complex, time-consuming, and reliant on domain knowledge. To address this, we propose HierarchyViz, an automated system that detects multiple hierarchies in raw datasets and generates intuitive …

Teachers’ Experiences With Researched-Based Programs And Strategies To Help Struggling Readers In Grades 6–8, Ebony Camille Dixon

Walden Dissertations and Doctoral Studies

The problem in this qualitative study was that adolescent students in Grades 6–8 in a rural district in the southeastern United States were struggling with reading and had inadequate reading comprehension achievement. The purpose of this basic qualitative study was to investigate how teachers implemented researched-based practices of reading intervention programs and the strategies they deemed beneficial to use while aiding struggling students. Marzano’s nine instructional strategies were used to frame the study. The 12 participants were reading teachers, interventionists, and specialists. Data were collected via semi-structured interviews and were analyzed using thematic analysis with open and axial coding. The …

Lived Experiences Of Nurses Caring For Patients With Opioid Use Disorder, Oneatha Alexander

Walden Dissertations and Doctoral Studies

Opioid abuse is a significant problem in the United States. People with opioid use disorder (OUD) visit the emergency room (ER) for pain management. OUD is the overuse and abuse of opioids, which can result in dependence, relapses, and death. Nurses in the ER and medical-surgical units face challenges in distinguishing OUD from chronic pain. The purpose of this qualitative interpretive phenomenological study, guided by Benner’s novice-to-expert framework, was to explore the lived experiences of ER and medical-surgical nurses who provide care to OUD patients. Eight ER and medical-surgical nurses were interviewed using semi-structured interviews. The main themes from coding …

The Role Of Neuroscience In Mental Health Management Within The Adhd Population, Kadi Rae Smith

University Honors Theses

Neuroscience-based educational interventions play a role in the management of Attention Deficit Hyperactive Disorder (ADHD), including the regulation of ADHD-correlated depression and anxiety. Existing research shows that elevated rates of depression correspond to anxiety within the ADHD community; approximately 8.83% of the global population. Social ostracization and isolation are established contributors to depression and anxiety which are commonly comorbid with ADHD. The need exists for further investigation of the beneficial impact that an accurate, biological understanding of how the brain works has on the mental health of the ADHD population, and by extension their families, education systems, and medical industries. …

In Vivo Direct Lentiviral Gene Therapy Improves Disease Pathology In A Mucopolysaccharidosis Iva Murine Model, Betul Celik, Estera Rintz, Shaukat Khan, Andrés F. Leal, Fnu Nidhi, Shunji Tomatsu

Department of Pediatrics Faculty Papers

Mucopolysaccharidosis IVA (MPS IVA) is an autosomal recessive disorder that causes the accumulation of keratan sulfate (KS) and chondroitin-6-sulfate in bone and cartilage. This results in progressive skeletal dysplasia, with no effective treatment available. Our study hypothesized that direct lentiviral vector (LV) gene therapy could produce active enzymes from transduced cells, impacting bone and cartilage lesions in MPS IVA. We developed LVs carrying the GALNS gene under three promoters: ubiquitous (CBh), collagen type II (COL2A1), and Mac-1 integrin subunit (CD11b). At the newborn stage and 4 weeks, Galns-knockout mice received intravenous injections at different doses (5 × 10^{9 …}

Seven Days With Coco (Stray Cat And War Refugee), Snjezana Marinkovic

Masters Theses

This thesis presents stories of those whose lives are governed by trauma, unfortunate life circumstances, and social pressure. It is a mixed form work that includes narrative nonfiction and poetry. It also utilizes some of the fiction techniques, such as setting, description, and inner point of view (e.g., seeing the world through the eyes of an unwanted animal).

Macrolide Antibiotic Mediated Cardiac Arrhythmias: Emerging Concepts And Clinical Implications, Fatima Iqbal, Alyssa Derouen, Robin Ren, Adam M. Kaye, Shahab Ahmadzadeh, Sahar Shekoohi, Alan D. Kaye

Pacific Faculty Work

The macrolide class of antibiotics are widely utilized in clinical settings for a broad range of bacterial infections and have additional roles as immunomodulatory agents. Although efficacious with a good safety profile overall, they have been associated with prolongation of the QT interval and development of the polymorphic ventricular tachycardia, Torsades de pointes (TdP). In a 2020 scientific statement, the American Heart Association (AHA) classified azithromycin, clarithromycin and erythromycin as QT-prolonging drugs known to cause TdP and the online database, CredibleMeds, that maintains a list of drugs known to cause QT prolongation classifies these drugs as having an increased risk …

Exploring Character-Level Attacks On Neural Ranking Models, Surjyanee Halder

Master’s Dissertations

Neural ranking models (NRMs) have achieved state-of-the-art performance in information retrieval, yet they remain highly susceptible to subtle adversarial inputs such as character-level typos. This project explores the robustness of such systems by introducing a reinforcement learning (RL)-based query perturbation framework. RL agents—PPO, DQN, and A2C—were trained to minimally modify user queries (e.g., through character deletions or swaps) with the goal of significantly altering the resulting document rankings, as measured by Kendall’s Tau. Experiments were conducted on the TREC DL 2019 and 2020 benchmarks using two different neural rankers: Mini LM and a fine-tuned Character BERT model. The perturbation attacks …

Police Officer Recruitment And Retention: How Can The Problem Be Solved, Paul R. Eagleston

Doctoral Dissertations and Projects

This grounded theory study aimed to understand the issues with police officer recruitment and retention for police administrators nationwide. The theory guiding this study was the grounded theory approach by Glaser and Strauss (1967) as it relates to the reasons for the loss of interest in law enforcement, including an increase in officers resigning before retiring. Data collection will explore if the police administrator being interviewed has experienced increased difficulties in recruiting potential candidates to fill vacancies and an increase in police officers in their department resigning before retirement. Data was collected through semi-structured interviews with law enforcement administrators. Recruitment …

Systemizing Church Hospitality: Converting Attendees To Committed Members, Dallas J. Blacklock

Doctoral Dissertations and Projects

The American church continues to lack a theoretical framework to guide newcomers through the process of becoming members. The problem is that First Mt. Carmel MBC lacks an onboarding system to guide visitors and guests through the process from attendees to members. The purpose of this DMIN action research project is to design, teach, and implement a 12-week onboarding system to integrate visitors into the congregation. To connect visitors to the congregation in the process of becoming a new creation in Christ, strategic steps are predetermined to assimilate them into the congregation. This problem was addressed by developing and implementing …

Family Poison: A Phenomenological Study Of The Role Of Toxic Parental Influence On Romantic Relationships, Kimberly Eichelberger-Searcy

Doctoral Dissertations and Projects

This phenomenological study sought to describe the lived experiences of adult survivors of toxic parents across the United States. The assumption was that toxic parental influence impacts romantic relationships. The following research questions framed this study: “How do adult survivors of toxic parents describe their experiences growing up with a toxic parent in the United States? How do adult survivors describe the effects of growing up with a toxic parent?” and “How do adult survivors of toxic parents describe the impact of their childhood experiences on their intimate/romantic relationships?”. The two theoretical frameworks guiding this study were Bowlby’s attachment theory, …

Veterans And Higher Education: How Military Service Affects The College Student Experience, Sean M. Berryman

Theses and Dissertations

Higher education has, in the past, paved the road to success for many Americans. Since it currently seems to be the consensus in American society, in general, that a college degree is needed to secure a good job, which leads to a good income in order to provide for oneself and one’s family, college is the road most Americans choose in order to achieve these goals. Since World War II (WWII), veterans have increasingly sought college degrees post-service to bring them in line with their civilian counterparts: they obtained experience in the military, now the degree gives veterans the opportunity …

Development And Miniaturization Of Pad-Printed Carbon Electrodes For Antibody-Type Biosensing, Elizabeth Danielle Clark

Theses and Dissertations

Miniaturized, pad-printed carbon electrodes (PPCEs) offer a promising platform for antibody-type biosensors, enabling rapid and cost-effective point-of-care diagnostics. This study investigates the development, fabrication, and electrochemical performance of large and miniaturized PPCEs functionalized for antibody-type detection, with the eventual goal of detecting pancreatic cancer specific biomarkers. The PPCEs were made of silver- and carbon- based inks that were formulated to be pad printable and conductive and printed on polycarbonate film so they can be easily disposed of after use. Each PPCE was thoroughly cleaned with ethanol several times to ensure a clean base on which to adsorb antibodies and antigens. …

The Benefits Of The Fourth Amendment’S Property-Rights Baseline, Nicholas A. Kahn-Fogel

Villanova Law Review (1956 - )

No abstract provided.

Taking The Road Less Traveled Makes All The Difference: The Tenth Circuit Applies The Collateral Order Doctrine Narrowly—And Properly—In Coomer V. Make Your Life Epic Llc, Paul Cooke

Villanova Law Review (1956 - )

No abstract provided.

Robin Hood Or Robbin’ The Goods? The Second Circuit Restores Sec Disgorgement To Equity In Sec V. Govil, Nikolette C. Dusevic

Villanova Law Review (1956 - )

No abstract provided.

Effective Strategies For Placing Underrepresented Women In Senior Management Positions: Shared Strategies, George Alexander Pegram Jr.

Walden Dissertations and Doctoral Studies

Underrepresentation of women in senior management positions within the tech industry poses a significant challenge in terms of organizational equity and effectiveness. Business leaders are concerned with this disparity, as it reflects systemic barriers to women’s advancement. Grounded in the people’s capability maturity model (P-CMM), the purpose of this qualitative pragmatic inquiry was to explore strategies that senior executives in the Washington, DC tech industry use to promote women to senior management positions. The participants were eight senior women executives purposefully selected for their leadership roles. Data was collected using semistructured interviews. Through thematic analysis, four themes were identified: personalized …

The Tumor Suppressor Hnrnpk Induces P53-Dependent Nucleolar Stress To Drive Ribosomopathies, Pedro Aguilar-Garrido, María Velasco-Estévez, Miguel Ángel Navarro-Aguadero, Álvaro Otero-Sobrino, Marta Ibáñez-Navarro, Miguel Ángel Marugal, María Hernández-Sánchez, Prerna Malaney, Ashley Rodriguez, Oscar Benitez, Xiaroui Zhang, Marisa Jl Aitken, Alejandra Ortiz-Ruiz, Diego Megías, Manuel Pérez, Gadea Mata, Jesús Gomez, Miguel Lafarga, Orlando Domínguez, Osvaldo Graña-Castro, Eduardo Caleiras, Pilar Ximénez-Embun, Marta Isasa, Paloma Jimena De Andres, Sandra Rodríguez-Perales, Raúl Torres-Ruiz, Enrique Revilla, Rosa María García-Martín, Daniel Azorín, Josune Zubicaray, Julián Sevilla, Oleksandra Sirozh, Vanesa Lafarga, Joaquín Martínez-López, Sean M Post, Miguel Gallardo

Faculty, Staff and Student Publications

The nucleolus is a membraneless organelle and an excellent stress sensor. Any changes in its architecture or composition lead to nucleolar stress, resulting in cell cycle arrest and interruption of ribosomal activity, critical factors in aging and cancer. In this study, we identified and described the pivotal role of the RNA-binding protein HNRNPK in ribosome and nucleolar dynamics. We developed an in vitro model of endogenous HNRNPK overexpression and an in vivo mouse model of ubiquitous HNRNPK overexpression. These models showed disruptions in translation as the HNRNPK overexpression caused alterations in the nucleolar structure, resulting in p53-dependent nucleolar stress, cell …

The Black Side Of The Jesus Movement: Contemporary Gospel Music, Edward Daryl Duff

Doctoral Dissertations and Projects

This study investigates the impact of James Cleveland, Andraé Crouch, Edwin Hawkins, and Walter Hawkins on contemporary gospel music following the Jesus Movement revival. Their music emerged concurrently with the birth of contemporary Christian music; however, their significant musical innovations have not been widely recognized as part of the Jesus Movement revival. Figuratively speaking, contemporary gospel music and contemporary Christian music are like “fraternal twins,” yet there has been insufficient research linking them together. The rationale for this study is to uncover the potential social and cultural barriers that contributed to their exclusion and disconnect. This research identifies these barriers …

The Colors Of Good And Evil: A Quantitative Study On The Effect Of Disney Animated Feature Films On Audience Color Association, Grace Mallory Hayes

Masters Theses

The purpose of this quantitative research study was to determine what impact Disney animated feature films have on audience color association. The problem is that Disney assigns colors to certain movie roles that are in contrast to what color theory posits or would assume. This study sought to determine if audiences that are highly saturated in Disney animated feature films receive a different message from colors than someone who does not regularly consume Disney films. This research examines the impact of Disney habitually assigning colors to characters in contrast to their traditional meaning on the emotional association of viewers through …

Olfactory Training: Reclaiming Our Wellbeing, Nathan Smetzer

Doctoral Dissertations and Projects

The connection between the sense of smell and memory offers a promising avenue for enhancing cognitive, emotional, and mental health, thereby contributing to overall wellbeing. This research explores how olfactory stimuli relate to memory and emotion, aiming to expand understanding of the effects of scent-based interventions on mental health. Utilizing a 12-week longitudinal phenomenological approach with experimental components, the study engaged seven participants in a regimen of olfactory training twice daily. Participants used essential oils—citrus, cloves, eucalyptus, and rose—applied to cotton and kept in sealed containers, along with a pen and daily planner. Data were gathered through recurring qualitative interviews …

Implementation Of An Educational Intervention To Improve Antibiotic Stewardship In An Urgent Care Setting, Evelyn Jane Clinton

Doctoral Dissertations and Projects

Antimicrobial resistance is a leading threat to global health. Resistance to antibiotics in the United States continues to increase contributing to rising numbers of resistant infections and subsequent deaths. This highlights the critical need for increased focus on antibiotic stewardship efforts. Urinary tract infections are one of the leading indications for antibiotic prescription in the outpatient setting and research suggests that there is an opportunity for improvement in antibiotic stewardship efforts in this area. The PICOT question for this project is as follows: In an urgent care setting, does provider education on the current evidence for urinary tract infection diagnosis …

A Hermeneutic Phenomenology Study Interpreting The Lived Experience Of K-12 Teachers: The Role Of Technology Integration In Shaping Academic Performance, Kathy S. Vaughan

Doctoral Dissertations and Projects

The purpose of this hermeneutic phenomenology study was to interpret the lived experience of K-12 teachers and the role of technology integration in shaping academic performance. The theory guiding this study was Bronfenbrenner's theory, which described how important the environments surrounding the individual were in affecting development. The central research question guiding this study was, "How do K-12 teachers interpret their lived experiences with technology integration and its role in shaping academic performance?" Participants in the study included K-12 teachers from the southeastern United States with at least three years of experience integrating technology. The participants were selected using purposive …

A Case Study For Faithful Biblical Expository Preaching And Teaching: The Transformation Of Members In The Anointed Church Of Jesus Christ, Elijah Narplah Wreh

Doctoral Dissertations and Projects

This DMIN action research evaluates the effectiveness of biblical expository preaching in demonstrating the inerrancy of Scripture and determining the impact of the twelve-week sermon series with the congregation at the Anointed Church of Jesus Christ in Elyria, Ohio. The process is designed to benefit the church’s congregation, help them faithfully obey God’s Word, and be drawn to God’s reality and the answers it provides through biblical preaching. The research methodology covers the application of biblical expository preaching. The congregation was instructed on various phraseological expressions, including expositional preaching, bibliocentric, Christocentric, inspired Scripture, applications, and illustrations, which helped enhance and …

A Quantitative Study Of Ai-Voice Based Assistant Users That Anthropomorphize Technology As Social Actors, Brandon Alton Bassett

Doctoral Dissertations and Projects

The problem was that there were limited studies that acknowledged how voice-based assistant users perceive the intelligence of voice-based assistants and the different variation levels of trust towards it. The purpose of this quantitative research was to investigate how demographic variables such as generation, ethnicity, gender and education level influence perceptions of trust and perceive intelligence towards AI-voice based assistants. The rationale for this research was that voice-based assistants have garnered 46% of the human-technology interaction. It is pivotal that voice-assistant applications listen to the need of its users’ as it pertains to the user experience. Voice-based assistants users’ perception …

Emdr Future Template Study, Helen Jimenez

Doctoral Dissertations and Projects

Eye Movement Desensitization and Reprocessing (EMDR) is a psychotherapeutic modality designed to reduce the emotional impact of distressing experiences using bilateral stimulation (Shapiro, 1999). Social anxiety remains a widespread mental health concern with social and personal consequences (Asakura et al., 2023). This study examined whether three EMDR Future Template sessions could reduce mild to moderate social anxiety. Seventeen adults, ages 18 to 65, who either self-reported or were clinically diagnosed with social anxiety completed three weekly telehealth sessions lasting 20 to 30 minutes each. In each session, the seventeen participants focused on anticipated future social scenarios and visualized adaptive responses …

A Unified Multiphase Composite Material Model: An Advanced Computational Continuum-Micro Mechanics Framework, Jaton N. Wince

Doctoral Dissertations and Projects

This work represents a transformational milestone that addresses the complex mechanical behavior of composite material systems within a unified framework for both inorganic and organic constituents. The motivation for this research stems from the need to accurately model and predict the mechanical behavior of these complex material systems, which are widely used in various industries. These materials present a unique challenge due to the intricate interplay of inorganic and organic phases, making them ideal candidates for an Internal State Variable (ISV) multiscale modeling approach.

The proposed model is a comprehensive ISV framework that seamlessly predicts inorganic and organic material behavior. …

A Multivariate Time Series Analysis Of Secular Stagnation: A Critical Realist Perspective, Francis N. Mensah

Doctoral Dissertations and Projects

The study investigated whether excess saving over investment explains secular stagnation or is linked to structural break (hysteresis) in aggregate economic activity as measured by the changes in the level of GDP. The U.S. economy, including the advanced economies, is experiencing secular stagnation, potentially caused by excess savings over investment. This condition, if present, could have significant implications for how we can conduct economic policy. Instead of focusing on gross domestic product (GDP), a measure of economic activity, the study extends the existing literature by concentrating on aggregate private-sector output. The rationale is that if there is secular stagnation or …

From Assistance To Impact: The Expanding Role Of Undergraduate Teaching Assistants In Higher Education, Erin Measom

Theses and Dissertations

This dissertation is presented in a three-article format. It explores the evolving role of undergraduate teaching assistants (UTAs) in higher education, with a particular focus on how they facilitate interaction, engagement, and student success in online courses. As higher education institutions expand online learning and seek innovative ways to enhance student support, UTAs have emerged as key players in bridging the gap between students and instructors. The first article provides a scoping review of the literature on UTAs, tracing their historical evolution and examining their expanding role. While traditionally viewed as logistical or grading assistants, UTAs are increasingly taking on …

A Multidimensional Model Of Attitudes Toward Sponsorship, Zachary C. T. Evans, Terry Eddy

Global Sport Business Journal

Sport sponsorship is an important marketing tool, with many of its elements having received previous research attention. Although researchers have examined attitudes toward sport sponsorship, the theoretical grounding of attitudes is often incomplete, and theoretically distinct terms are frequently used interchangeably (e.g., attitudes and beliefs). The purpose of this study was to critically examine the literature regarding attitudes toward, and beliefs about, sponsorship to review the common frameworks utilized in examining the constructs, and analyze their theoretical appropriateness. A systematized review methodology was undertaken, through which a definition for attitude toward sponsorship was developed using the tripartite framework for attitude …