Digital Commons Network^™

About The Great Commission Research Network Fall 2025, David R. Dunaetz

Great Commission Research Journal

No abstract provided.

Fall 2025 Complete Issue, David R. Dunaetz

Great Commission Research Journal

No abstract provided.

Perturbation Solution Of Air-Water Mixture For Jet Noise Reduction, Juan Felipe Uribe Cifuentes

Doctoral Dissertations and Master's Theses

This work investigates passive jet-noise mitigation using externally positioned air–water curtains that attenuate radiated sound without altering the underlying jet dynamics. Two classes of multiphase media are examined: a gaseous carrier phase containing dispersed liquid droplets, and a liquid carrier phase containing entrained air bubbles. For both systems, suspended and dispersed regimes are represented through a generalized perturbation formulation derived from the volume-averaged multiphase equations, incorporating finite volume fractions, interphase momentum coupling, and slip between phases. Analytical and numerical solutions demonstrate that acoustic attenuation is primarily governed by dispersed-phase diameter, volume fraction, and excitation frequency, with additional sensitivity to phase-interaction …

A Study In Object Detection And Classification Performance By Sensing Modality For Autonomous Surface Vessels, Daniel Lane

Doctoral Dissertations and Master's Theses

This research presents a quantitative performance comparison between light detection and ranging (LiDAR) and vision-based sensing for real-time maritime object detection on autonomous surface vessels. Using Embry-Riddle Aeronautical University’s (ERAU) Minion platform and 2024 Maritime RobotX Challenge data, this study evaluates the detection of six maritime object categories using two representative models. YOLOv8 provides a neural network vision-based method, and GB-CACHE provides a deterministic LiDAR-based method. Both models have been previously demonstrated to run in real time on uncrewed surface vessels (USVs). The evaluation methodology encompasses multi-sensor calibration, real-time performance analysis, and the introduction of a late-fusion strategy in the …

Leveraging Machine Learning And Causal Inference For Loan Default Prediction, Luca Guida

Doctoral Dissertations and Master's Theses

This research explores a systematic application of machine learning techniques combined with causal inference to predict loan defaults in peer-to-peer lending. Accurately forecasting loan defaults is crucial for mitigating financial risk and optimizing lending strategies. This analysis is based on multiple datasets of loan applications spanning over a decade, containing detailed financial and credit information about borrowers. Beginning with extensive Exploratory Data Analysis (EDA) coupled with scaling strategies, the research identifies key trends in loan performance across a large number of factors, such as interest rates or borrower creditworthiness, and one objective is to determine from the many available predictors …

Meshless Discrete Velocity Boltzmann Model For Porous Media Flow, Amandine Maidenberg

Doctoral Dissertations and Master's Theses

This dissertation explores the combination of two sophisticated techniques for addressing computational fluid dynamics: the discrete velocity Boltzmann equation (DVBE) and the localized collocation meshless model with upwinding (U-LCMM). The DVBE is a high-level model that describes the foundations of transport phenomena by addressing the microscale motions of particles themselves and the effect of their aggregate behaviors on continuum principles. This equation integrates multiple scales of phenomena; while it can be used for fluid flow at Navier-Stokes scales, it can also resolve fine features that can only be described at the molecular level. This type of model is necessary for …

Autonomous Landing Of An Unmanned Aerial Vehicle On An Unmanned Surface Vessel Using Model Predictive Control With An Adaptive-Covariance Extended Kalman Filter, Jorge Estupinan

Doctoral Dissertations and Master's Theses

This thesis presents the development of vision-based estimation and model predictive control (MPC) strategies to enable an Unmanned Aerial Vehicle (UAV) to land autonomously on an Unmanned Surface Vessel (USV) subjected to wave-induced motion. An innovative Adaptive-Covariance Extended Kalman Filter (AEKF) implementation was developed for the estimation of the 6 degree-of-freedom USV states using GPS and vision-based measurements of AprilTag markers on the USV landing platform. The AEKF employs an uncontrolled 6 degree-of-freedom nonlinear model augmented with second-order harmonic wave-induced motion dynamics. The AEKF implements two correction techniques: an adaptive covariance adjustment and an artificial covariance inflation regulated by a …

Exploration Of Physics-Informed Grid Generation Technique For Wall-Modeled Les Using Eagle3d, Dominic Schneider

Doctoral Dissertations and Master's Theses

Wall-Modeled Large Eddy Simulation (WMLES) is an area of interest due to its ability to lower computational costs of LES. Even with the application of wall models, LES still proves to have practicality issues when it comes to use in industry, due to the expertise, time, and computational resources required. A novel technique for generating a lean, physics based WMLES grid is described.

The technique utilizes a RANS solution to extract turbulence information, user-specified values related to resolution of turbulent energy levels, acoustics waves, and shock waves, to generate a point cloud for producing a lean WMLES grid with in-house …

Unresolved Image Simulation For Space Situational Awareness Applications, Fox Coniglario

Doctoral Dissertations and Master's Theses

The knowledge of what lies in orbit around Earth is at best a guess. Decades of spaceflight, debris buildup, and vehicle collisions have contributed to a large number of objects that are simply not able to be catalogued. Ongoing efforts to catalog debris in orbit have reached limits by conventional measures and as such, research is active in the field of in-orbit space situational awareness. This thesis intends to help fill a hole in the development of such orbital platforms by assisting the development of image processing software pipelines though the simulation of unresolved space imagery. The simulation uses accurate …

Identifying Signatures Of Unidentified Aerospace Phenomena Through Structured Analytic Techniques, Joshua S. Pierson, Ms, Dss

Journal of Strategic Security

Unidentified Aerospace Phenomena (UAP) penetrate sovereign airspace and sea space with such proliferation that often national security entities are left baffled with how to detect, identify, and respond to such actions. Since World War II, these phenomena were reported to pace aircraft, maneuver at high speeds in an erratic fashion and increase speed to hypersonic velocity when starting from stasis. The study of UAP is shrouded in stigma, perplexing government mishaps, and academic inquiry focusing on the material aspects of UAP, leaving a gap in determining the exhibited capability and intent of these phenomena. The use of structured analytic techniques …

Sofs And Pmscs: Factors Of Stability And Change, Mirko Tasic

Journal of Strategic Security

The legitimacy of special operations forces (SOFs) and private military and security companies (PMSCs) often resides in a legal gray area, especially for those operating under the patronage of states that deviate from neoliberal standards and are sometimes labeled as criminal groups or terrorist organizations. This study aimed to develop a framework for categorizing the organizational and operational models of such SOFs and PMSCs. The three primary categories used were: mercantilistic, ideological, and ideological-mercantilistic. A comparative analysis of Iran’s Quds Force, Russia’s Wagner Group, and FR Yugoslavia’s JSO was conducted to better understand the impact of these and similar actors …

Student Government Association Monthly Newsletter: October Recap, Madison May Albers

SGA - Newsletter

Hey Tigers!

We’re excited to share the first edition of the Student Government Association (SGA) Newsletter! This month’s issue recaps our busy fall semester, from welcoming new senators and hearing from campus leaders like Lisa Goddard and Wesley Winch, to hosting civic engagement events such as the Fall Election Forum and Open Forum. You’ll also find updates on legislation, recent campus initiatives, and a preview of what’s ahead in November, including Veterans Day letters and Allocations Workshops.

Aligning Aviation Safety Reporting System Anomaly Codes For Crew Communication And Coordination With Human Factors Taxonomies, Jennifer Rose Herr

Doctoral Dissertations and Master's Theses

This study addresses the lack of theoretical grounding and definitions for the Aviation Safety Reporting System (ASRS) anomaly codes, particularly those related to pilot communication and coordination errors. To improve the conceptual consistency and analytical usability of ASRS data, the research developed a framework that maps ASRS codes to three established theory-based human factors taxonomies: the Human Factors Analysis and Classification System (HFACS), Threat and Error Management (TEM), and Aviation Causal Contributors for Error Reporting Systems (ACCERS). The study used qualitative text mining to systematically code communication and coordination errors submitted by Part 121 pilots for a stratified sample of …

Barriers And Best Practices In Diversity, Equity, And Inclusion (Dei) Initiatives: A Case Study From The United States Aerospace And Defense Industry, Jeremy A. Bailey

Doctoral Dissertations and Master's Theses

The main objective of this study was to unpack the barriers around diversity, equity, and inclusion (DEI) initiatives, and then provide best practices to improve DEI efforts in the aerospace and defense (A&D) industry. There has been a multitude of research conducted on DEI in the past few years. However, very little research has focused on DEI practices in the A&D industry. This case study focused on one large company in this industry to explore and understand various aspects of DEI initiative implementation. As organizations strive to meet industry and client objectives, as well as address employee needs, two research …

Active Measurement Of A Micron-Order Gap Under High-Speed And High-Temperature Conditions, Andrew Becker

Doctoral Dissertations and Master's Theses

The hypersonic regime poses numerous challenges that researchers face in the development of hypersonic flight vehicles. Due to their excellent thermomechanical properties, ultra-high-temperature ceramics (UHTCs) have risen as a promising solution to act as a protective barrier between the harsh environment and surface materials of these flight bodies. The mechanical operation of a portable hypersonic simulation device was developed in-house and tested at Argonne National Laboratories (ANL) to gather in-situ material response of prospective UHTC samples when exposed to a hypersonic regime. An edge detection-based algorithm was developed and used in LabVIEW to monitor the health and operation of the …

Monte Carlo Simulation Models To Enhance Air Cargo Network Resilience And Sustainability, Shereen Marie Hashemi

Doctoral Dissertations and Master's Theses

This dissertation focuses on developing and validating an empirical set of simulation models for an air cargo network under large-scale disruption to test recovery strategies that improve resilience. Understanding and quantifying network resilience and recovery strategies is critical for ensuring sustainable operations. These operations become essential during disruptive events as air cargo is used to transport time-sensitive and critical goods. The collective research steps result in a Monte Carlo simulation framework to evaluate air cargo network resilience and identify strategies that enhance performance during disruptions.

The modeled system is a hub-and-spoke network centered on Memphis (MEM) with 23 domestic airports …

Epidemiology Of Lower Extremity Amputations In The United States: An Analysis Of The Global Burden Of Disease Database From 1990 To 2019., Peter B Spencer, Cameron J Sabet, Gabrielle Dykhouse, Taylor J Manes, Phillip C Mckegg, Ambrose Loc T Ngo, Ayah Ibrahim, Jack Weick

Surgery Articles

BACKGROUND: Lower extremity amputations (LEAs) are medically, psychologically, and functionally devastating. The objective of our study was to evaluate region- and sex-specific differences of unilateral and bilateral LEAs across the United States (US) from 1990 to 2019.

METHODS: The Global Burden of Disease database was used to analyze years lived with disability (YLDs), prevalence, and incidence rates per 100,000 people for LEAs in the US from 1990 to 2019. Data were stratified into four US Census Bureau-defined regions: Northeast, Midwest, South, and West. Differences between regions and sexes were assessed, with statistical significance defined as p < 0.05.

RESULTS: From 1990 to …

Graduate School Blog - October 2025, Cynthia Haynes

UofM Grad School Blog

In this October 2025 blog edition, we explore one of the most underestimated yet decisive elements of graduate school applications: letters of recommendation. A strong, specific, and enthusiastic letter can open doors that grades alone can’t, while a vague one can quietly close them. Learn how to choose the right recommenders, ask the right questions, and set them up for success.

We also spotlight PhD student Sadia Rinty and her journey from Bangladesh to the University of Memphis’s renowned CERI program, share upcoming graduate student events, and celebrate Memphis as a national leader in women-owned businesses. From academic tips …

Emergency Medicine Pharmacist Prescriptive Authority For Resolution Of Outpatient Prescription Issues, Kevin Burnham, Christina Tran, Leandra Garcia, Julian Mccreary, Christo Philip, Osama A. Shoair

Pharmacy Faculty Publications and Presentations

Objectives: To describe the implementation and impact of a collaborative practice agreement (CPA) for emergency medicine pharmacists (EMPs) that grants them broad prescriptive authority to resolve outpatient discharge prescription issues independently. Methods: We conducted a retrospective chart review of all prescriptions written by EMPs under a CPA to resolve discharge prescription issues at a 70-bed emergency department (ED) within a large health system in South Dallas, Texas. This review covered the period from November 1, 2021, to June 30, 2023. EMPs were authorized to independently address prescription problems without a provider’s direct involvement. We collected data on patient demographics, the …

Proteomic Approaches To Investigate Pp2a-B55 Substrates And Cellular Function, Brennan C. Mcewan

Dartmouth College Ph.D Dissertations

Cell division is controlled in large part by reversible protein phosphorylation. The phosphorylation state of proteins during mitosis and other phases of the cell cycle represents a careful balance of activity between kinases and opposing phosphatases. The phosphoprotein phosphatase (PPP) family is responsible for the majority of serine and threonine dephosphorylation. Members of the PPP family are composed of a catalytic subunit paired with a regulatory subunit that targets them towards specific substrates.

The most abundant PPP, PPP2A, paired with its regulatory B55 subunit, is thought to be the phosphatase responsible for the dephosphorylation of substrates during mitotic exit. Despite …

The Library Papers (Vol. 1, Issue 2, October 2025), Wolf Law Library, William & Mary Law School

Library Newsletter

No abstract provided.

Wrack Lines Volume 25, Number 2, Fall-Winter 2025-2026, Nancy Balcom

Wrack Lines

Fall-Winter 2025-2026 issue of Wrack Lines explores 40 years of stewardship for Long Island Sound now and into the future, the work of the Long Island Sound Partnership, a pilot project using a new type of diving helmet to broadcast from undersea locations, a survey of public perceptions of the Sound, the life and legacy of former CT Sea Grant Director Edward Monahan, and the aspirations and reflections of recently retired CT Sea Grant Associate Director Nancy Balcom and her successor Jess Brandt.

Computational Dataset Of Cetyl Trimethyl Ammonium-Anion Complex Structures And Simulated Infrared Spectra, Arun K. Sharma, Owen Mcmillan

Biology, Agriculture and Chemistry Faculty Publications and Presentations

This dataset presents computationally derived geometries and vibrational spectra of cetyl trimethyl ammonium ion pairs formed with three environmentally and chemically relevant anions: bisulfate, nitrate, and methyl sulfonate. Data were obtained using quantum chemical calculations performed using the Gaussian 16 software package, utilizing the ONIOM method at the second-order Møller–Plesset perturbation theory (MP2) level. To account for solvent effects and electrostatic screening, calculations incorporated an implicit solvent environment via the polarizable continuum model (PCM). The dataset includes optimized geometric coordinates, harmonic vibrational frequencies, and simulated infrared (IR) spectra for each cetyl trimethyl ammonium-anion pair. Additional computational details, including input parameters, …

Physical Education's Importance In Education, Tyler Phelan

Master's Theses & Capstone Projects

School districts are looking to connect students with courses that will impact their futures. Research shows that physical activity is a key component of healthy well-being and sense of self. Physical education supports other areas of the curriculum, enhancing student learning and their learning experience. It also provides opportunities to improve self-control and reduce behaviors that can affect the student body. This study aims to identify the relevance of physical education to student achievement and disruptive behavior. Based on the literature, data were collected to examine the relationship between students' time in physical education courses, their GPA, and referrals to …

A Comparative Analysis Of Sel And Character Education Models: Impact On Instructional Time Loss And Student Behavior In Middle School, Clare Mcdowell

Master's Theses & Capstone Projects

The purpose of this single-case, inquiry-based capstone project was to investigate the effectiveness of a systemic Social-Emotional Learning (SEL) program in mitigating instructional time loss caused by escalating student behavioral challenges in a middle school setting. The methodology involved analyzing administrative disciplinary referral data from a highly structured, multi-tiered SEL program (School A). Findings affirmed a clear inverse relationship: high-fidelity SEL exposure correlated with a significant reduction in disruptive incidents, which demonstrated the efficacy of proactive skill instruction in reclaiming instructional time. However, the study's central limitation was its inability to isolate the effect of the universal curriculum from the …

Student Perceptions Of Standards-Based Grading In High School Biology, Scott Bohlman

Master's Theses & Capstone Projects

Standards-based grading (SBG) redefines the reporting of student achievement by focusing on proficiency in explicitly defined learning standards rather than the accumulation of points. Although SBG has the potential to improve student learning, variation in implementation can create student confusion and hinder effectiveness. This inquiry-based research project investigated student perceptions of SBG in high school biology classrooms at Cedar Falls High School in Iowa to determine whether the system helps students gain the necessary skills and accurately measures their academic ability. The researcher utilized a mixed-methods approach, collecting quantitative data through surveys of 23 high school biology students and qualitative …

Improving Teacher Expectations For Students With Disabilities, Noah Kullmann

Master's Theses & Capstone Projects

Disability labels for students are indicators that are made known to classroom teachers before the beginning of the year and have the possibility to impact what a teacher might expect from a specific student. The purpose of this study was to better understand how disability labels impact the expectations that teachers have for students, and how providing training to teachers by informing them about the characteristics of a disability or research-based practices to use when teaching students with a specific disability impacts their initial expectations. The researcher administered five different surveys to a group of 31 high school and middle …

Trauma-Informed Practices At Lake Mills Community School, Rebecca R. May

Master's Theses & Capstone Projects

t is important to know what the staff at Lake Mills Community School (LMCS) understands about childhood trauma, how it affects student success, how to best meet the needs of students who have trauma history, and how willing staff are to participate in trauma-informed professional development. To gain more insight on the matter, a survey was conducted among the entire LMCS staff including certified teachers, paraprofessionals, administration, and auxiliary staff. The entire staff was selected because the small size of the district allows interaction between all staff and students. Of the 105 staff members, 45 members (43%) completed the first …

The Effectiveness Of Visual Schedules In Fostering Self-Regulation Among Middle Schoolers With Adhd, Autism, And Other Learning Disabilities, Triston Rew

Master's Theses & Capstone Projects

This paper explores the effectiveness of visual schedules in supporting self-regulation and on-task behavior among middle and high school students with autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD). Visual schedules are evidence-based tools that provide structured, predictable routines and help students transition between activities with reduced anxiety. A review of current research highlights their impact on increasing independence, reducing problem behaviors, and fostering engagement in both general and special education settings. The paper discusses studies that demonstrate measurable improvements in student outcomes, including reduced transition time and increased task completion. Additionally, teacher perceptions of visual schedules are examined, with …

Closing The Gap Between Students With And Without Individualized Education Plans, Mikayla Herron

Master's Theses & Capstone Projects

The achievement gap between students with and without individualized education programs continues to be a concern in early childhood education. Finding strategies and interventions that help narrow this gap is important, especially when children are young and the gap is still relatively small. This inquiry-based research study explored the use of the AI tool Buddy.ai to determine whether it could support preschool-aged students with IEPs in improving early learning skills. The study also considered general education teachers’ experiences working to close the achievement gap in inclusive classrooms. A mixed-methods approach was used. Quantitative data were collected through pre- and post-assessments, …