Digital Commons Network^™

Rethinking Library Opac: From Siloed Retrieval To Ai And Ml-Driven Discovery Using Fastapi And Mysql, Sukumar Mandal

Library Philosophy and Practice (e-journal)

The paper explores integration methods between MySQL and FastAPI to develop dynamic Online Public Access Catalog services including functionalities for modern libraries and information centers. It addresses evolving user expectations by replacing rigid keyword-based search models with adaptive, intelligent discovery experiences that prioritize search relevance. The goal involves transforming traditional library retrieval tools into contextual discovery platforms that effectively understand specific user intent and complex needs. The prototype was created on Ubuntu in a customized Python environment. It uses FastAPI to manage asynchronous API calls and MySQL to store bibliographic data. SQLAlchemy abstracts the database layer, and Pydantic validates data. …

From Digital Skills To Digital Ventures: Exploring The Influence Of Digital Competence On Infopreneurship Intentions Of Library And Information Science Students In Nigerian Polytechnics, Uwaebuka Wisdom Madu Dr., Stephen Adekunle Ajayi Dr

Library Philosophy and Practice (e-journal)

The focus of this study was to investigate the influence of digital competence on infopreneurship intention among Library and Information Science (LIS) students in federal polytechnics in South-West Nigeria, a context characterized by high graduate unemployment and rapid digital transformation. Guided by the Theory of Planned Behaviour and Eshet-Alkalai's Digital Literacy Model, a descriptive survey design was employed. The population comprised 638 final-year LIS students across four federal polytechnics, with a sample of 468 selected through multi-stage sampling. A validated questionnaire with a reliability coefficient of 0.828 was used for data collection. 388 responses amounting to 82.9% response rate was …

Experimental Investigations Of Cataract-Related Visual Degradation, Intraocular Lens Optics And Dynamic Stability, Sherrie Choy

School of Health Professions Theses

Cataract commonly occurs in older adults and is associated with degraded vision, impaired mobility and increased risk of falls. Cataract surgery restores transparency of the optical media by replacing the natural lens with an artificial intraocular lens (IOL). Modern toric and aspheric IOLs can improve optical quality and refractive outcomes; yet their potential impact on dynamic balance and fall risk is not well understood. This thesis used an experimental research methodology to examine how controlled changes in visual quality, arising from simulated cataract and from differences in IOL design, toric alignment and aberration profile, influence dynamic stability and gaze behaviour, …

Off-Label Abuse: The Prosecution Of Individuals For Pesticide Crimes Under The Federal Insecticide, Fungicide, And Rodenticide Act, Joshua Ozymy, Melissa Jarrell Ozymy

Natural Resources Journal

When individuals commit pesticide crimes involving significant harm or culpable conduct, they may be prosecuted for criminal violations of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), but we have little knowledge of how individual offenders have been prosecuted historically for such crimes. Using content analysis of 2,728 environmental crime prosecutions resulting from U.S. EPA criminal investigations, 1983 to 2021, we select all cases of individuals prosecuted under FIFRA for our analysis. We find that 100 cases were adjudicated, resulting in 135 years of probation, 75 years of incarceration, and $4.2 million in monetary penalties assessed at sentencing. Of those …

Cliffinsight: An Educational Web Application That Visualizes The Calculation Of Effect-Sizes Using Cliff's Delta, Mohamed El-Attar, Ahmed Shuhaiber, Rima Grati, Sarah Kohail

All Works

The purpose of calculating effect sizes in statistics is to quantify the practical significance of observed differences beyond mere statistical significance. While standardized mean difference measures such as Cohen’s d are widely used, they require normally distributed data, an assumption frequently violated in educational and social science research. Non-parametric alternatives such as Cliff’s delta (δ) are more robust under these conditions yet remain underused due to perceived computational complexity and limited accessible resources. Existing web-based tools for Cliff’s delta function primarily as numerical calculators and do not expose the underlying dominance structure that gives the statistic its meaning. This paper …

Auditory Memory In Children Who Stutter, Sanaa Mahran Mohamed Qandel, Nihal Hisham Abdelhamid Mostafa, Nihal Hisham Abdelhamid

Journal of Medicine in Scientific Research

Background Stuttering has been described as a disorder in motor speech in which disruption in the timing between laryngeal, respiratory, and vocal tract rhythm of speech. It is characterized by prolongations and involuntary repetitions of sounds. Children who stutter (CWS) characterized by inability to produce sounds, with intra-phonemic disruption and involuntary silent pauses. Many studies have examined central auditory processing skills and reported impairments, yet auditory memory skills have not been adequately evaluated, leaving a gap in the available information. Aim of the study Assessing auditory memory performance and auditory memory abilities in CWS. Methods: Measuring recognition memory, memory for …

A Comparison Of Haemodialysis And Renal Transplantation On Male Sexual Function And Hormonal Abnormalities, Hala Ibrahim Mohamed, Ahmad Mohamad Abbas Elseasi

Journal of Medicine in Scientific Research

Background Sexual dysfunction and hormonal imbalance are common in males with end-stage renal disease (ESRD), particularly among those on chronic hemodialysis. Kidney transplantation may restore endocrine homeostasis and improve sexual function. This study aimed to compare the effects of hemodialysis and renal transplantation on male sexual function and related hormonal profiles. Methods This cross-sectional study was conducted on 40 married men (≥18 years) with ESRD at National Institute of Urology and Nephrology from October 2024 to October 2025. Participants were divided into two groups: Group I (hemodialysis) and Group II (renal transplantation). Clinical evaluation, laboratory tests, and hormonal assays (Folliclestimulating …

The Postoperative Analgesic Effect Of Lumbar Erector Spinae Plane Block Versus Pericapsular Nerve Group Block In Patients Undergoing Hip Surgeries, Islam M. El-Desoky, Mohamed Elshafey, Amal Ismail Abdelrahman

Journal of Medicine in Scientific Research

Background: Hip surgery requires effective pain control for proper recovery and decreasing the length of hospital stay. Aims: We aimed to assess the analgesic effect of Erector spinae plane block (ESPB) and pericapsular nerve group (PENG) blocks in pain control after hip operations. Methods: This randomized clinical trial included 69 ASA I–II patients scheduled for hip surgery were randomly allocated into three groups: PENG block, ESPB, and control groups (23 each). The primary outcome was postoperative pain assessed via the Numeric Rating Scale (NRS) at rest and during movement. Secondary outcomes included intraoperative and 48-hour morphine consumption, time to first …

Role Of New-Onset Qt Prolongation In Ecg In Critically Ill Septic Patients As A Prognostic Tool: An Observational Prospective Cohort Icu Study, Talal Ibrahim Mostafa Hagag, Salwa M.A. Dahesh

Journal of Medicine in Scientific Research

Background QT interval prolongation is a common finding among critically ill patients and could be a marker of autonomic nervous dysregulation, instability of metabolism, and/or septic cardiomyopathy. Nevertheless, its prognostic role among septic ICU populations remains unclarified. The current aim of this study was to explore its potential role regarding short-term mortality. Methods In this cohort study, 119 septic adults were included in the study within 24 hours of ICU admission. Demographics, clinical variables, lab values, and QTc intervals were measured within 2 hours of ICU admission following exclusion for clinically significant electrolyte imbalances and use of QT-prolonging medications. QTc …

Efficacy And Safety Of General Anaesthesia Versus Local Anaesthesia With Iv Sedation In Transcatheter Aortic Valve Implantation (Tavi), Reham Salah, Ahmed Kamel Abdelghany Hassan, Sherif Ahmed Kamal Elhendawy

Journal of Medicine in Scientific Research

The optimal anesthetic approach for transcatheter aortic valve implantation (TAVI) remains a subject of ongoing debate. Although general anesthesia (GA) allows greater procedural control and airway security, local anesthesia with conscious sedation (LACS) may facilitate faster postoperative recovery and reduce procedure-related complications. This study aimed to compare the efficacy and safety of GA versus CS in patients undergoing transfemoral TAVI.

Evaluating The Accuracy Of Chatgpt In Decision Of Surgical Dose In Cases Of Intermittent Exotropia, Ayman M Elghonemy, Mohamed A Elkady, Mohamed R Abdelbasset

Journal of Medicine in Scientific Research

Background: Artificial intelligence (AI) has increasingly been integrated into various aspects of healthcare, revolutionizing diagnostics, patient management, and medical decision-making. AI-powered platforms, particularly large language models (LLMs) such as ChatGPT, have demonstrated potential in supporting clinical expertise by generating relevant, context-aware responses to medical inquiries. In ophthalmology, AI has been widely utilized for diagnosing and monitoring common conditions like glaucoma, diabetic retinopathy, and macular degeneration. However, its application in strabismus management, particularly in surgical planning, remains underexplored.

 Objective: to compare the accuracy of responses about surgical plans for strabismus by ChatGPT-3.5 and ChatGPT-4 with the traditional surgical strabismus table of …

Patient Pathways And Outcomes Following Referral To A Dedicated Clinic For Tavi Program: Insights From The Egyptian National Heart Institute, Ramy Mohamed Omar, Ahmad Hassanen Gaber, Tarek M Abdel Aziz Elkholy

Journal of Medicine in Scientific Research

Background

The most common valvular heart disease in elderly populations and with a dismal prognosis in the case of its development is degenerative aortic stenosis. The use of transcatheter aortic valve implantation (TAVI) has transformed the treatment of the entire surgical risk spectrum, but there is limited real-world data that define the patterns of treatment and post-treatment results in the Middle East and North Africa (MENA) region.

Objectives

To characterize the pattern of treatment allocation, clinical and procedural outcome, and predictors at the baselines of six months mortality in patients in a row who were referred to a specialist assessment …

Comparison Of Dexmedetomidine And Ketamine Versus Propofol And Ketamine For Procedural Sedation In Children Undergoing Minor Cardiac Procedures In Cardiac Catheterization Laboratory, Reham Salah, Amr Ahmed Samir

Journal of Medicine in Scientific Research

Background: The optimal anesthetic approach for the care of pediatric patients facing cardiac catheterization stays undefined. Therefore, this study sought to equivalence the impact of ketamine-propofol and ketamine-dexmedetomidine mixtures on recovery duration and hemodynamic parameters in pediatric patients suffering trivial procedures and cardiac catheterization, while sedated for the treatment of numerous congenital heart diseases.

Materials and Method: One hundred twenty-six pediatric patients, irrespective of sex, scheduled for cardiac catheterization were arbitrarily billed to one of two groups: a propofol-ketamine group (PK) and a dexmedetomidine-ketamine group (DK), every comprising sixty-three patients. Group (DK) established Dexmedetomidine iv infusion 1µg/kg over ten min …

Identification Of The Seventh Cervical Vertebra By Palpation With Neck Rotation And Side Bending In Patients With Neck Pain., Eslam Elsayed Ali Shohda, Malaka Abdelmoniem Ibrahim El Khawaga, Amr Abdelaziz Hanafi Mohamed

Journal of Medicine in Scientific Research

Background: Precise localization of vertebral levels through clinical examination represents an essential competency for healthcare professionals across multiple disciplines. The present study sought to assess the reliability of identifying the seventh cervical vertebra (C7) via palpation during cervical rotation and side bending in individuals experiencing neck pain.

Materials and Methods: A cross-sectional study was carried out in the physiotherapy outpatient department of Al-Ahrar Teaching Hospital, located in Zagazig, Egypt. Thirty individuals with complaints of neck pain were recruited for participation. The seventh cervical vertebra (C7) was determined by palpating the most mobile vertebra among the three most prominent cervical segments …

Partisan Local Media And Corporate Voluntary Disclosures: Evidence From Sinclair Acquisitions, Ming Li

Theses and Dissertations

I investigate the impact of local media’s political orientation on firms’ voluntary disclosure, exploiting the acquisitions of local TV stations by Sinclair Broadcast Group, a conservative media conglomerate. Drawing on the media bias theory and implementing a staggered difference‐in‐differences design, I find that the local partisan media affects management earnings forecasts. Specifically, Conservative-leaning CEOs in designated market areas (DMAs) affected by Sinclair’s acquisitions forecast more optimistically, increasing forecast frequency and inflating forecasted earnings. The impact is stronger if the DMAs are more Liberal-leaning before the acquisitions and when firms have weaker corporate governance. I also find that the stock market …

Exploring New Poly-Anion Based Materials For Lithium – Ion Battery Cathodes, Sutapa Bhattacharya

Doctoral Dissertations

The escalating global demand for sustainable energy storage solutions has driven intensive research into novel electrode materials. Polyanion-based cathode materials have emerged as promising candidates due to their structural stability, safety, and voltage tunability enabled by the inductive effect of polyanionic groups. This research explores the synthesis, crystal structure, and electrochemical performance of new polyanion-based cathode materials featuring vanadium, molybdenum, and iron within phosphate and selenite frameworks.

Novel selenite-based materials, such as LiFe(SeO₃)₂ and Li₀.₂₅V₂O₃(SeO₃)₂, were synthesized and characterized, revealing stable electrochemical cycling associated with Fe2+/Fe3+ and V⁴⁺/V⁵⁺ transitions. Additionally, a systematic investigation was conducted on molybdenum phosphate compounds, including …

Theoretical Study Of Long-Range Molecular Interactions, Adrian Luis Batista-Planas

Doctoral Dissertations

Describing intermolecular forces is fundamental to modeling and predicting the behavior of molecular systems. In particular, long-range molecular interactions—with electrostatic, induction, and dispersion as main components—play a critical role, especially for low-temperature and low-density regimes. Long-range interactions are often described through perturbation theory, representing the electronic charge distribution via multipolar series of the moments and polarizability tensors corresponding to each molecule. However, while the theory is well-established, obtaining the resulting analytical expressions (and their practical implementation) constitutes a highly complex and system-dependent task. To address this challenge, we developed Long-Range-Fit (LRF), an interactive and user-friendly software package designed to automate …

Adaptive Machine Learning Framework For Microstructural Optimization And Mechanical Performance Prediction In Steels, Henry Adekola Haffner

Doctoral Dissertations

Evolution of microstructures, such as polygonal ferrite, acicular ferrite, bainite, and martensite, plays a pivotal role in determining the final microstructural and mechanical properties of steel products. Given the established inter-relationship between processing parameters, microstructure, properties, and performance, precise control of phase transformation is essential to achieve pre-determined properties. To understand transformation routes in different steel grades, time-temperature-transformation (TTT) and continuous-cooling-transformation (CCT) diagrams are necessary and can be described using the Johnson-Mehl-Avrami-Kolmogorov equation and Scheil’s additivity rule. This study presents a comprehensive computational framework for predicting and optimizing microstructure and mechanical properties in advanced high-strength steels (AHSS) using adaptive machine …

Security And Energy-Efficiency In Federated Learning, Priyesh Ranjan

Doctoral Dissertations

Federated Learning (FL), which facilitates collaborative model training and protects users' privacy, has drawn great interest from the research community. With FL, the participants train their models on local data and submit the corresponding updates for aggregation to a server. While concealing the participants' identities, FL may attract adversaries aiming to hamper the underlying model. These adversaries aim to submit malicious weight updates that corrupt the performance of the server model. Further, these models when communicated to the participating clients extend the behavior which is undesirable. Additionally, FL suffers from increased energy consumption at the edge device level due to …

Geometric Effects Of Warfighters On Body Armor Fit And Protective Capabilities Against Shock Wave Energy, Melissa Lynn Sutter

Doctoral Dissertations

Body armor is a vital piece of protective equipment for warfighters to defend against threats, necessitating continued development to improve comfort, weight, and protection. However, female warfighters often wear unisex body armor, designed primarily for the male torso. Current research has evaluated the short- and long-term detriments of female warfighters wearing these armors, focusing on comfort and performance. However, these studies do not comprehensively consider how a non-form-fitting armor compromises warfighter safety from battlefield threats. This research examines the geometric effects of female warfighters on armor protection level when defending against shock threats by evaluating the energy distribution on a …

Zirconium Carbide Based Materials For Extreme Aerospace Environments, Nathaniel Hyman Blatt

Doctoral Dissertations

This research focuses on the processing and properties of zirconium carbide-based materials to promote their use in extreme environment aerospace applications, including nuclear thermal propulsion and hyper sonics. Several carbide systems including ZrC, ZrC-Mo cermets, (Zr, Nb)C, and a high entropy carbide were developed. The ZrC-Mo cermet was studied extensively to understand the effect of starting carbide grain size on the final microstructure, composition, elastic moduli, hardness, fracture toughness, room and elevated temperature flexural strength, thermal diffusivity, electrical resistivity, thermal expansion coefficient, and thermal conductivity. It was shown that heat transport in the cermets was dominated by the ZrC phase …

Essays On Accelerated Failure Time Models For Recurrent Event Data, Emmanuel Masavo Djegou

Doctoral Dissertations

Recurrent event data arise in many fields such as medicine, reliability, insurance, and economics, where the same event may occur repeatedly for a subject. Accelerated Failure Time (AFT) models provide an intuitive framework for relating covariates to event times and offer a useful alternative to proportional hazards models, allowing direct prediction of event timing under right censoring. However, existing AFT extensions for recurrent events, such as accelerated gap time (AGT) models, often fail to account for interventions between events and may not capture complex temporal patterns.

In this work, we first propose a class of semiparametric AGT models incorporating an …

Architecting A Complex Adaptive System Model For Selecting Policies To Reduce Kidney Discard, Lirim Ashiku

Doctoral Dissertations

"The kidney allocation system is a complex, evolving system involving multiple heterogeneous agents. Each agent exhibits emergent behavior that may not fully align with the complex system goals. Therefore, there is a need for a transdisciplinary systems approach to visualize the interdependency among agents and understand the dominant patterns that shape the kidney allocation system.

First, this research presented an incremental hierarchical system engineering approach in identifying the agents’ needs and behaviors toward the complex systems’ goal of maximizing deceased donor kidney utilization and reducing kidney discard. The hierarchical systems approach linked with model-based system engineering aided in eliciting agents’ …

Buddy, Can You Spare A Claim?" Sparing Debtors' Claims From Dismissal Under The Doctrine Of Judicial Estoppel, Post-Keathley V. Buddy Ayers Construction, Inc., Abigail B. Willie

Faculty Articles

In Keathley v. Buddy Ayers Construction, Inc., the Supreme Court considered the (decidedly) unglamorous issue of the proper standard for determining when judicial estoppel may be applied. The case (perhaps unsurprisingly) did not attract protestors on the courthouse steps (there were no hand-painted signs demanding “END ESTOPPEL NOW!”—go figure), nor did it pique the interest of talking-head cable news pundits (apparently, a semi-obscure equitable doctrine isn’t a ratings-grabbing red v. blue state issue—again, go figure). However, those of us in the bankruptcy law world knew the stakes, as evidenced by the amicus briefs filed by retired bankruptcy judges, bankruptcy scholars, …

Assessment Of Simulation Software Used For Cubesat Gnc Verification And Validation By University Research Teams, Alexander Taiyo Newett

Masters Theses

As the growth in university satellite teams continues, along with the greater trend in the small satellite market, the need for a guidance, navigation, and control verification and validation pipeline suitable for these young and inexperienced teams becomes evident. Much of the mathematical theory and software implementation of GNC concepts are large hurdles for teams largely composed of undergraduate students.

Many software packages exist that can help these teams achieve GNC verification and validation. If the learning curves of these software packages can be overcome, new satellite teams have the opportunity to better build and test GNC algorithms that are …

Assessment And Comparison Of Selected Carbon Ablation Models In Hypersonic Free-Flight And Arc-Jet Conditions, Andrew Steven Heider

Masters Theses

Accurate prediction of ablative thermal protection system (TPS) performance is critical for hypersonic vehicle design. However, numerical prediction of ablation remains challenging because results are influenced by complex physics and the choice of surface chemistry model and assumptions made in material response calculations. The objective of this work is to evaluate several carbon ablation models and their implementation within modern computational fluid dynamics (CFD) codes. Numerical simulations were performed using NASA’s LAURA flow solver and the commercial CFD code ANSYS Fluent, which coupled Navier-Stokes with surface chemistry models describing carbon oxidation, nitridation, and sublimation reactions. Several reaction sets were considered, …

Investigating The Dynamic Rating Method: Effects Of Flood Wave Geometry On Discharge Estimation, Daniel James Read

Masters Theses

Rating curves are a vital tool to convert from observed stage to discharge in streamflow monitoring. Most gaging sites utilize a simple rating curve, which assumes a monotonic relationship between stage and discharge. In most cases, this assumption is valid; however, dynamic effects of flood waves often cause significant error in discharge estimation for mildly sloped streams. The dynamic rating method utilizes a numerical solution of the St. Venant Equations applied to time series stage data to compute discharge. Within this method, there is a flood wave parameter called the flood wave factor. The researchers designed a formal computational model …

Examination Of Laser Microwelding As A Technique For The Repair Of Steel Castings, Allan John Woldow

Masters Theses

"Metal castings have long been plagued with minor defects caused by various process and design conditions. Commonly, minor defects are not seen until after machining operations have been completed, and by the time they are identified, they cannot be salvaged in a manner that is structurally sound and does not have other detrimental effects on the product. Detrimental effects may include warping from high heat input in traditional welding, warping from reheat treatment, oxidation of machined surfaces, microstructural anomalies, and reduced mechanical properties. Micro laser welding has the potential to provide a solution to these issues by providing a low …

Specialty Glass Fibers For Optical Applications, Theodore Carver Lewis

Masters Theses

"Fibers were draw from melts of a commercial Na-aluminosilicate for ion-exchange treatments. A process was developed to draw 100-meters of fiber with a diameter of 100±10m. The fibers were sectioned for ion exchange treatments. SEM analysis showed an ion penetration depth of 45um after 4 hours of ion exchange in a 400°C KNO3 salt bath. The pristine and ion-exchanged fibers were characterized by a two-point bend test in room temperature air with controlled relative humidity (RH) and faceplate velocities between 100 and 4000 μm/s to characterize fatigue effects. Pristine fibers tested in air (40% RH) at 4000 μm/s had failure …

Validating A Low-Cost Radio Frequency Characterization Framework For Development-Grade Software-Defined Radios In Short-Duration Cubesat Missions, Thomas Wayne Francois

Masters Theses

Software-defined radios (SDRs) and CubeSat platforms have reduced the cost and complexity of space-based communication systems, enabling broader participation in satellite missions. While low-cost radio hardware is increasingly accessible, the ability to characterize and validate its performance remains constrained by the high cost and limited access to traditional RF test equipment. This disparity creates a challenge for small satellite development teams, which must characterize communication-system technical performance with limited access to laboratory-grade instrumentation.

This thesis presents a low-cost RF characterization framework for assessing key radio-frequency performance metrics using readily available hardware and measurement techniques. The approach integrates frequency translation, SDR-based …