Digital Commons Network^™

Impact Of Body Mass Index On Echocardiographic Parameters Of Patients With Ischemic Cardiomyopathy, Rehab M Al-Ashry, Mohamed Elbayomi, Nesreen M. Zakaria

Journal of Medicine in Scientific Research

Background: Since obesity raises the risk of several metabolic and cardiovascular disorders, it is a serious global health concern. Researches on its effects on heart anatomy, function, and metabolic parameters in ischemic cardiomyopathy patients are still ongoing. Aim: To assess how elevated body mass index (BMI) is related to echocardiographic parameters in patients with ischemic cardiomyopathy. Methods: There were two patient groups in this investigation with ischemic cardiomyopathy: overweight/obese (Group I, BMI >25) and non-obese (Group II, BMI ≤25). Echocardiographic measurements, comprising systolic and diastolic performance, wall thickness, and left and right ventricular dimensions were evaluated. Laboratory parameters, including glycemic …

Intra-African Trade And Economic Growth In Africa: The Role Of Foreign Direct Investment, Anthony Kyereboah-Coleman, Joshua Yindenaba Abor, Daniel Ofori-Sasu

Journal of African Trade

This study examines the role of foreign direct investment (FDI) in the relationship between intra-African trade and economic growth. Employing a sample of 54 African countries over the period 2004-2022 and a two-step System Generalized Methods of Moments, the study finds that FDI inflows have a positive effect on intra-African trade, which in turn positively affects economic growth; however, FDI has a negative independent effect on growth. The study further provides evidence to support the hypothesis that FDI magnifies the positive effect of intra-African trade on economic growth, by establishing that intra-African trade and FDI are complements in enhancing economic …

Home-Based High-Intensity Interval Training For People With Parkinson’S : The Hiit-Home4parkinson’S Study, Conrad Harpham

School of Health Professions Theses

BackgroundExercise, particularly of high intensity, is considered to be important for people with Parkinson’s (PwP). However, PwP are less active than healthy individuals, and face disease specific and logistical barriers to exercise participation such as lack of outcome expectation, symptom exacerbation, travel logistics due to motor symptoms, expense and perceived lack of time. High-intensity interval training (HIIT) is a low volume exercise modality, evinced to be beneficial and time efficient for people within various healthy and clinical populations. HIIT therefore, particularly undertaken in the home could be apposite for PwP, although evidence is currently limited. Therefore, this study aimed to …

Improving The Operator-Swarm Dynamic Under Mental Fatigue Constraints In Search And Rescue Operations, Jordan Morrow

Masters Theses

"Human-robot applications that allow for work to be done remotely are largely dependent on the lassitude of the operators. The exhaustion of these operators is a result of work completion and duration. Previous research attempts to evaluate the impact on reaction by quantiying human weariness. This paper examines how human weariness affects the human-robot dynamic in UAV-assisted search and rescue missions. An explanation of the connection between mental exhaustion and operator responsiveness over prolonged durations is provided by the search and rescue operations using UAV swarms (SAROUS) model. Through the use of artificial intelligence, SAROUS is modernized. This allows the …

Navigating Copyright In Ai-Enhanced Game Design: Legal Challenges In Multimodal And Dynamic Content Creation, Andrew Begemann, James Hutson

Faculty Scholarship

The integration of artificial intelligence (AI) in video game design has transformed traditional workflows, allowing for the generation of text, images, music, videos, and code at unprecedented scales. However, this advancement presents complex challenges for copyright law, traditionally rooted in human originality and authorship. This article examines recent case law that underscores the evolving legal landscape, exploring landmark cases such as Zarya of the Dawn and Andersen v. Stability AI. These cases reveal the tensions between AI-generated outputs and copyright eligibility, especially in the dynamic, multimodal compositions inherent to video games. The review analyzes how various AI tools are employed …

Applying Human System Integration Principles To The Investigation, Design And Validation Of Interventions For Self-Escape In Underground Mines, Eugene Adubofour Gyawu

Doctoral Dissertations

This dissertation investigates the use of human systems integration (HSI) to develop technologies for miners’ self-escape during a mine emergency, addressing barriers that compromise miner safety during emergencies.

Recognizing the inherently hazardous nature of underground mining, this study has three core objectives: (1) assessing miners' perceptions of proposed self-escape interventions, (2) designing interventions based on these insights, and (3) validating their effectiveness using experimental testing. This work evaluates self-escape interventions for both coal and metal/non-metal miners using scenario-based surveys, information design reviews, label designs and experimental testing methods varying across three distinct studies.

Results reveal that miners identified improvements to …

Implication And Applications Of Machine Learning On Biomedical Images, Jason Hagerty

Doctoral Dissertations

Medical imaging ranges in modality including computer tomography imaging, x-ray imaging, digital microscopy, and macro-focus dermoscopy images. The latter two modalities are the focus of the presented work.

To perform a diagnostic evaluation on the captured dermoscopy image, it begins with what is usually a labor-intensive operation that requires an expert to perform the initial segmentation for localizing a region of interest (ROI). Once that ROI is obtained, a physician with years of training and experience will observe biological markers that can be used to visually differentiate whether a lesion is benign or malignant. A similar process is used for …

Novel Nano-Formulations Based On Flash Nanoprecipitation For Ocular Drug Delivery, Lin Qi

Doctoral Dissertations

Effective ocular drug delivery has always been a challenge for clinical and research. Although many nanotechnology-based formulations have been developed and showed great potential in ocular drug delivery, this is far from enough to meet clinical requirements. These studies aimed at the design and synthesis of novel nanoparticles using multi-inlet vortex mixer (MIVM) to improve ocular drug delivery efficiency. The first project involves packaging two different anti-glaucoma drugs, brimonidine (BM) and betaxolol (BX), into solid drug nanoparticles (SDNs) by MIVM, which can achieve both functions, reducing aqueous humor production and promoting aqueous humor efflux. The studies demonstrate that the SDNs …

Characterization And Deportment Of Anode Impurities In Copper Electrorefining, Charles Michael Campbell

Doctoral Dissertations

The objective of this research was to study the deportment of the group 15 elements, arsenic, antimony and bismuth during copper electrorefining. Samples were collected from six industrial copper anodes with different compositions. Specimens were physically characterized and electro refined to understand the differences in the behavior of selected impurities. Inclusions in the cast metal structures were characterized using automated scanning electron microscopy and energy dispersive spectroscopy to measure and correlate their size, shape and composition. Arsenic and lead were found to have a positive correlation between concentration and size of inclusions. Using wavelength dispersive spectroscopy, multiphase inclusions were examined, …

Data-Driven Mulitiscale Modeling Of Electrochemical Transport, Non-Linear Electrical Contact, And Additive Manufacturing Processes, Emmanuel Olugbade

Doctoral Dissertations

The growing demand for high-efficiency energy systems and advanced manufacturing technologies requires predictive frameworks that link atomic-scale physics with engineering-scale performance. This dissertation develops a unified multiscale modeling approach that integrates molecular dynamics, density functional theory, finite-element analysis, and machine learning to connect structure, transport, and performance across materials and processes. Depending on the interactions involved, the framework employs loose coupling for parameter transfer, tight coupling for two-way feedback, and hybrid coupling where machine-learning surrogates accelerate high-fidelity simulations while retaining physical interpretability. In electrochemical systems, an XGBoost-enhanced single-particle model reproduces P2D-level electrolyte potential dynamics at roughly one-hundredth the computational cost, …

Characterization And Modeling Of Properties Of Unsaturated And Partially Damaged Cement-Based Materials, Rezwana Binte Hafiz

Doctoral Dissertations

"Transport properties, governing the resistance of cement-based materials to harmful substances are essential considerations for long-term performance. This study addressed the often-overlooked dimension of transport properties in unsaturated cement-based materials, crucial as most concrete structures face variable environmental conditions, leading to partial saturation. A two-scale model was introduced, enhancing our comprehension of transport properties in conditions reflecting real-world scenarios. Empirical correlation representing bulk paste characteristics was established, facilitating the upscaling of properties to mortar and concrete. The model was extended to predict the transport properties of mortar as well.

Environmental factors can contribute to the degradation of cement-based materials, with …

Additive Manufacturing Of Multifunctional Materials And Composites, John Michael Pappas

Doctoral Dissertations

"This research focused on developing fundamental knowledge of process-material interactions for additive manufacturing of multifunctional materials that are highly desirable in high-tech industries for potential weight and space savings. Multifunctional materials are very sensitive to defects, which severely hinder performance. Thus, defect formation was systematically studied to develop strategies and methodologies to efficiently fabricate high-performance materials and composites. Blown-powder-based laser additive manufacturing of transparent spinel ceramics was investigated to reduce porosity and cracking, defects that hindered transparency and mechanical properties. A systematic study of processing parameters revealed that laser power and powder flow rate had the largest effects on defect …

Exploring The Feasibility Of Innovative Integration Of Phase Change Materials For Thermo-Adaptive Asphalt Pavements, Farshad Saberi Kerahroudi

Doctoral Dissertations

"Current research examined the feasibility and efficiency of employing phase change materials (PCMs) in asphalt pavement materials to result in thermo-adaptive asphalt pavement. The PCM was introduced to the asphalt materials in three different scales, including asphalt binder, asphalt mastic, and asphalt mixture. After investigating asphalt at different scales, mix blending method was found as the easiest method without any complexity to mix asphalt binder with PCM. The testing results could reveal an improvement in the high temperature performance of asphalt binder without sacrificing the low temperature performance with the presence of PCM and Gilsonite. Also, introducing PCM to asphalt …

Investigation Of The Transport And Plugging Behavior Of Preformed Particle Gels (Ppgs) In Fractures For Conformance Control In Carbonate Reservoirs, Abdulaziz A. Almakimi

Doctoral Dissertations

This study aims to systematically evaluate the performance of preformed particle gels (PPGs) in fractured carbonates mainly through a series of core flooding experiments. Carbonate reservoirs exhibit unique features of heterogeneity and pore geometry, while (PPGs) are known for their plugging efficiency, deformability, and dehydratable nature. The main goal of gel injection in fractured reservoirs is to place a gel pack appropriately into the fracture, diverting injected fluid to the oil-bearing matrix and reducing excessive water production. However, considerable dehydration of (PPGs) is possible at the adjacent matrix and within the fracture, which could lead to a filter-cake formation and/or …

An Integrated Approach Can Improve China’S Food Additives Security, Qian Li, Jingru Hou, Jennifer S. Stevenson, Cihui Liu

Faculty Articles

In China, the development of food additives remains a critical challenge in food additives security research. We discuss an integrated approach that can improve China’s food additives security, including technical management, standards implementation, and punitive damages regime. Through this integration, we identify that technical management, standards implementation, and punitive damages regime are each complementary to each other. Technical management helps reduce the inherent risks of food additives beforehand. Standards implementation helps prevent and control risks of food additives use halfway. Punitive damages regime helps relieve secondary risks arising from food additives use. Crucially, this integration enhances the suitability of food …

Checks And Balances: A Fallacy In U.S. Territorial Governance, Sigrid Vendrell-Polanco

Faculty Articles

By envisioning the checks and balances system, the drafters of the U.S. Constitution aimed to ensure a balanced distribution of power among the federal government's branches-an admirable undertaking by the early leaders of this nation's government. However, few have analyzed the application of the checks and balances system as applied to the colonies, which the United States has collectively held since the late 1800s. This Article offers a compelling exploration of the United States' foundational system of governance through the lens of its territories. At the heart of the American democratic experiment lies a complex architecture of checks and balances, …

The Sovereign Acre, Match Dawson

Faculty Articles

What if the next constitutional crisis is not declared from a presidential podium but tyranny forged into a deed? Not a contested election. Not a rogue legislature. Not even a runaway court. This time, it is quieter—with a deed signed and title passed, a new sovereign is crowned in private ink. Across the country, billionaire land grabs are redrawing the map of municipal governance itself. As wealthy elites and corporate oligarchs carve out private enclaves—from the privatized contract city of Sandy Springs, Georgia, to the unsettling governance of The Woodlands, Texas—we bear witness to public sovereignty giving way to oligarchic …

Dean's Update, January 2025, Neil W. Schluger

SOM Dean's Research Newsletter

No abstract provided.

The Effects Of Intensity On The Copy And Recall Treatment (Cart) In Aphasia, Maria Aprile

Brehm Scholars Research

No abstract provided.

Multilinguals And Aphasia: Slp Perspective On Intervention, Matt J. Eby

Brehm Scholars Research

Aphasia is an acquired language disorder typically affecting language production and comprehension, both to varying degrees. Onset of aphasia typically follows a cerebrovascular event, such as a stroke or traumatic brain injury. In this study, particular interest is paid to people with aphasia who conversationally spoke two or more languages pre-onset and the therapists who treat them. Past research has investigated the additional considerations taken when assessing and treating aphasia in multilingual clients, focusing on enhancing therapy efficacy in this population. However, current theoretical and clinical reviews of research often leave out the lived experiences of those involved.

This study …

Liking Gap(S) In Getting-Acquainted Interactions, Susan Sprecher

Faculty Publications – Sociology and Anthropology

In first interactions, people often think about how much they like the other and how much the other likes them in return. Recently, a liking gap has been identified, which is the tendency for people to underestimate how much a new acquaintance likes them. With data from a compiled sample of pairs of strangers interacting for the first time, this investigation contributes to knowledge on how common it is to experience this perceived liking gap (versus no gap or an overestimation of how much one is liked). Also examined is an actual liking gap, the difference between how much people …

Exploring Slp & Special Education Clinicians' Readiness For Diversity, Amiya Carreras

Brehm Scholars Research

No abstract provided.

Impact Of Teriparatide On Surgical And Medical Outcomes In Osteoporotic Patients Undergoing Multilevel Anterior Cervical Discectomy And Fusion, Samuel Akhnoukh, Uttsav Patel, Kenny Ling, Ivan Zapolsky

Background: Osteoporotic patients undergoing multi-level anterior cervical discectomy and fusion (ACDF) are at increased risk of pseudarthrosis and perioperative complications, including higher rates of reoperation compared to non-osteoporotic individuals. Teriparatide, an anabolic agent used in osteoporosis treatment, has shown promise in enhancing fusion and reducing complications in lumbar spine procedures, but its role in multi-level ACDF remains unclear.

Purpose: The purpose of this study was to evaluate the impact of postoperative teriparatide use on outcomes in osteoporotic patients undergoing multi-level anterior cervical discectomy and fusion (ACDF). Specifically, the study aimed to determine whether teriparatide could reduce long-term complications such as …

Identifying Authenticity In Orthopaedic Residency Applications: Can Selection Committees Detect Ai-Written Personal Statements, Samir Baig, Lekha Yaramada, David E. Komatsu, James Barsi

See article.

Femoral Avascular Necrosis And Triptan Therapy: A Multicenter Retrospective Study, Joseph Bisiani, Francisco Martos Jr., Brian Lynch

Aims: Migraines are one of the most common neurological disorders that patients typically suffer from. One of the more common prescription medications for migraines are triptans, which can lead to vasoconstriction throughout the peripheral vasculature as a potential side effect. However, a possible risk of femoral avascular necrosis may arise from these treatments, as it has been well known that a lack of blood flow to the femur can arise due to this peripheral vasoconstriction. Therefore, research is warranted for whether taking anti-migraine medications is associated with a higher risk of developing avascular necrosis within the femur, an area highly …

Association Between Glp-1 Agonist Use And Site-Specific Fracture Risk: A Retrospective Cohort Analysis, Nathan Zou, Joseph Bisiani, Brian Lynch

Background: Type 2 diabetes and obesity rates are expected to rise, possibly increasing the usage of Glucagon-like peptide-1 (GLP-1) agonists. Use of these agents for nondiabetic patients for weight loss I s approaching the number prescribed for diabetes. GLP-1 agonists may influence bone metabolism by promoting formation and reducing resorption, but their impact on fracture risk remains unclear. While some studies show no association, others suggest increased vulnerability. Most prior research has examined overall fracture risk without considering specific skeletal sites. This study aimed to compare site-specific fracture rates in adults with T2DM or obesity receiving GLP-1 therapy with those …

Measuring The Effectiveness Of Internship Programs In Aligning Education With Industry During Covid-19: A Case Study, Fokiya Akhtar, Tarannum Parkar

All Works

This study aimed to analyze the effectiveness of internship programs in aligning education with industry during the COVID-19 pandemic. This research focuses on the internship outcomes of College of Communication and Media Sciences (CCMS) students in various UAE organizations. This study employs Kirkpatrick's framework and analyzes 64 student reports over ten weeks to understand the strengths and areas of improvement in aligning academic instruction with real- world applications. The research focuses on the reaction and learning constructs in the alignment of theoretical teachings with practical experiences based on Kirkpatrick's framework. The study revealed that internships offer students a chance to …

Improving Public Sector Procurement Methods In International Practices: A Comparative Study, Karem Sayed Aboelazm, Fady Tawakol, Emad Ibrahim, Hanadi Sharif

All Works

Objective: This paper presents the methods of public sector procurement in some public procurement laws such as UNITRAL law, Egyptian Law, Indian Law, Kenyan Law, and UAE law. Theoretical Framework: Some of the modern methods used by many countries, the research also sought to develop a clear definition of public sector procurement and relied in this research on the comparative approach as a significant approach to study for comparing the laws of countries. Method: This paper used descriptive-analytical methodology to analysis the legal frameworks of public sector procurement methods in Egypt, UAE, and other laws in comparison, the research reached …

Explicit Inverse Of Symmetric, Tridiagonal Near Toeplitz Matrices With Strictly Diagonally Dominant Toeplitz Part, Bakytzhan Kurmanbek, Yogi Erlangga, Yerlan Amanbek

All Works

Let T n = tridiag ( - 1 , b , - 1 ) , an n x n symmetric, strictly diagonally dominant tridiagonal matrix ( divided by b divided by > 2 ). This article investigates tridiagonal near-Toeplitz matrices T n & colone; [ t i , j ] , obtained by perturbing the ( 1 , 1 ) and ( n , n ) entry of T n . Let t 1 , 1 = t n , n = b not equal b . We derive exact inverses of T n . Furthermore, we demonstrate that these results …

Preliminary Validation Of Two Math Screening Tools To Identify Gifted Students In Grades 3–5 In Jordan, Bashir Abu-Hamour, Hanan Al Hmouz

All Works

Introduction: Early screening for mathematically gifted students (MGSs) in Jordan and other Arab countries is limited, posing challenges in identifying and providing appropriate educational services. This study evaluates the validity and reliability of the Arabiya Calculation Test and Math Curriculum-Based Measurement (M-CBM) as tools for effectively screening and supporting MGSs in inclusive education settings. These tools were developed based on the Jordanian curriculum and international assessment tools and require further validation for use in other Arabic-speaking countries. Methods: A quantitative research design was employed, using the Arabiya Calculation Test and M-CBM to assess 78 MGSs in grades 3, 4, and …