Digital Commons Network^™

Investigating Resilience Of Cyberattack Detection Using Lyapunov-Based Economic Model Predictive Control To Data Poisoning, Helen Durand, Akkarakaran Francis Leonard

Chemical Engineering and Materials Science Faculty Research Publications

Cyberattacks may be performed on process control systems due to their integration of networking and computing with physical systems. Prior work in our group has developed detection strategies for nonlinear systems under sensor, actuator, and combined sensor and actuator attacks which can ensure, under characterizable conditions, that attacks can be detected before they cause safety issues. However, this work did not take into account the potential that an attacker could attempt to provide data to a process that causes an attack to remain undetected but that also is consistent with different process dynamics than those which the process has. This …

Response Of Dynamic Processes With Control Implemented On A Noisy Quantum Computer, Shilpa Narashimhan, Dominic Messina, Henrique Oyama, Helen Durand

Chemical Engineering and Materials Science Faculty Research Publications

A major challenge to determining the applicability (and potential outperformance over classical computers) of a quantum computer (QC) within chemical manufacturing processes is quantum noise. Computations by a QC are error-prone due to the influence of quantum noise inherent to the hardware. Errors in control inputs may destabilize a chemical process and lead to unsafe conditions for manufacturing personnel and the environment. The response of a process with control implemented on a QC to errors due to noise must be investigated thoroughly. In this work, the impacts of control input errors due to quantum noise on a process are modeled …

Tools To Design Algorithms For Implementing Control Over Quantum Computers, Shilpa Narashimhan, Jihan Abou Halloun, Kip Nieman, Helen Durand

Chemical Engineering and Materials Science Faculty Research Publications

Quantum computers (QCs) may find future applications within control systems that operate manufacturing processes. For application within control engineering, quantum algorithm development must be led by control engineers. However, control engineers may face challenges in designing quantum algorithms for control engineering problems. In this work, we provide several path-finding studies that leverage engineering tools such as optimization, encryption, and computational "short-cuts" toward making algorithm design for QC easier for control engineers.

Köppen-Geiger Climate Effects On F-15 Readiness Spares Package Parts, Maximus A. Fan

Theses and Dissertations

Readiness Spares Packages (RSP) are critical to deployed operations. Future demands of the Air Force require squadrons to operate in different climate environments from home stations. RSPs can sustain aircraft maintenance operations for up to 30 days. Currently, failure rates of parts within the RSP are assumed to be constant. This research aims to explore whether there is a difference in F-15 RSP failure rates when Koeppen climate classifications are taken into effect. The Koeppen-Geiger system classifies area climates based on the geography, elevation, and location. The history of operations and diversity of F-15 locations make the aircraft an ideal …

August 21, 2025, James Madison University

The Breeze, 2020-

The Breeze is the student newspaper of James Madison University in Harrisonburg, Virginia.

Investigation Of A Stable And Saturated Reference Electrode Using Metal Chlorides And Oxides In Eutectic Licl-Kcl Molten Salts, Carlos Mejia, Devin Rappleye

Faculty Publications

Stable and reproducible reference electrodes (REs) are essential for electrochemical systems operating in high-temperature molten salts, where consistent control of potential is required. This study uses three different solutes to investigate the development and evaluation of REs in eutectic LiCl-KCl at 773 K. The solutes tested were NiCl2, AgCl, and NiO, each prepared at multiple concentrations to assess stability, reproducibility, and saturation. Electrochemical stability was measured over three days using chronopotentiometry (CP), followed by open circuit potential (OCP), with cyclic voltammetry (CV) also integrated to monitor changes in electrochemical behavior over time. The CP-OCP approach established a Li+/Li redox potential, …

Implementation Of Culturally Relevant Pedagogy In Elementary Reading Instruction, Chelsea Renae Little

Walden Dissertations and Doctoral Studies

Culturally relevant pedagogy (CRP) has been shown to help educators address the unique educational needs of African American students. While research has supported the belief that CRP promotes a sense of belonging and positively influences academic achievement, there remains a lack of research regarding elementary teachers’ perceptions of their implementation of CRP specifically when teaching reading to African American students. Framed by Ladson-Billings’s CRP framework, the purpose of this basic qualitative study was to explore elementary teachers' perceptions of their implementation of CRP when teaching reading to African American students. Using a basic qualitative design, data were collected through semistructured …

Staff Education On Suicidal Screening In Young African American Male Adults With Bipolar Disorders, Tokunbo Ndidi Allen

Walden Dissertations and Doctoral Studies

This Doctor of Nursing Practice education project aimed to enhance mental health providers’ preparedness in culturally competent suicide screening, specifically for African American males with bipolar disorder in a behavioral health department. The practice issue identified was a lack of documented training, leading to underdiagnosis, missed interventions, and health disparities driven by cultural stigma, provider discomfort, and the absence of standardized guidelines. This represents a serious patient safety concern for African American males with mood disorders, such as bipolar, who are significantly underserved in mental health care. The guiding question was: Does a suicide screening education program improve the knowledge …

Recent Progress And Scientific Challenges In Wire-Arc Additive Manufacturing Of Metallic Multi-Material Structures, Sainand M. Jadhav, Sambhaji Kusekar, Akash Belure, Satyavan Digole, Abhijeet Mali, Muralimohan Cheepu, Manoj Mugale, Suhas Alkunte, Duckbong Kim

Faculty Articles

Metallic multi-material structures are heterogeneous structures characterized by changing composition, microstructures, and site-specific characteristics, advantageous for numerous applications where multifunctionality is desired. Metallic multi-material structures are known as bimetallic structures (BSs), which are functionally graded materials (FGMs). In recent years, wire-arc additive manufacturing (WAAM) advanced as a promising additive manufacturing process to realize the fabrication of these structures due to its high deposition rate, cost-effectiveness, and material utilization efficiency. This review presents a comprehensive overview of the recent progress, processing strategies, and scientific challenges in WAAM of multi-material structures. The paper begins with an introduction to multi-material structures, followed by …

Humanizing Cities As An Approach For Solving Cities' Problems To Be More Livable, Kareem Mahrous Ali

Mansoura Engineering Journal

Most people around the world want to move from the countryside to the cities or from one city to another that provides them with all their human needs for a better life. The dream may come true for them or turn into a nightmare for reasons related to general problems facing most cities in the world, such as the high cost of living and the absence of social justice, these problems cause an increase in poor families, or the issue of refugees and the inability of some cities to welcome them, the energy crisis, and the challenges of climate change …

Riparian Restoration Increases Soil Microbial Biomass In Marin County Rangelands, But Soil Carbon Stock Is Less Responsive, Sherilyn Kathryn Reinhart

Master's Theses

Land use change has caused the degradation of 70% of the Earth’s soils, directly altering soil microbial communities and carbon cycling. Interest in carbon farming practices is growing, but studies that document the nuances of soil carbon flux in specific bioregions are still too few. In this study, I examined how one practice, riparian restoration, alters soil carbon stock and microbial community structure over time. Using a paired sampling time series design, I collected soil samples from twelve riparian forests and adjacent rangelands near Marin County, California. Young and mature sites ranged from five to 29 years since restoration, and …

Operational Solutions To Address Radiology Staffing Challenges In Southern California Hospitals, Jacqueline Wood

Walden Dissertations and Doctoral Studies

The problem of interest is the current workforce crisis among the Radiologist Specialty in hospitals in Southern California. There has been a significant decline in the number of Radiologists in the workforce compared to the caseload of imaging studies. The purpose of this integrative review was to evaluate empirical and non-empirical literature for operational solutions to improve recruitment and retention of radiology providers. Literature published between 1999-2024 were evaluated for appropriateness using the Johns Hopkins evidence appraisal tools. The literature involved strategies and identified operational areas of opportunity for improvement with radiologist staffing. Identifying ways to improve job satisfaction, retention …

Optimizing Workflow And Patient Outcomes: The Impact Of The Modified Adult Difficult Intravenous Access (A-Diva) Scale On Peripheral Iv Access: A Quality Improvement Project, Dakota S. Weaver, Ryan O'Sullivan

Doctor of Nurse Anesthesia Practice (DNAP) Manuscripts

Peripheral intravenous cannulation (PIVC) is one of the most performed invasive procedures in hospital settings, yet it is frequently associated with multiple attempts in patients with difficult intravenous access (DIVA). In obstetric (OB) triage settings, where time-sensitive care is critical, failed PIVC attempts can delay treatment and negatively affect patient experience. The Modified Adult Difficult Intravenous Access (A-DIVA) scale is a validated tool designed to identify patients at risk for DIVA and guide early use of advanced techniques such as ultrasound (US) guidance.

A QI initiative was implemented in the OB triage unit of a large academic hospital. The tool …

Covid-19-Associated Mucormycosis Mimicking Odontogenic Pain: A Report Of Three Cases, Pegah Sarraf, Mahboube Hasheminasab, Mehrfam Khoshkhounejad, Seyed A. Abaee, Pardis Akbari, Mohammad H. Nekoofar, Paul M.H. Dummer

Pacific Faculty Work

Aim: The aim of this study was to present three cases of COVID-19-related mucormycosis mimicking endodontic pain and to discuss the relevant dental and medical literature for this potential life-threatening disease. Summary: Mucormycosis (previously called zygomycosis) is a rare but serious infection caused by a group of fungi called mucormycetes. Mucormycosis mainly affects people who are medically compromised and have systemic health conditions or take drugs that lower their immune response. There has been an increase in case reports/series of mucormycosis in individuals diagnosed with COVID-19. This is likely attributable to the high doses and prolonged use of corticosteroids in …

Decomposing Trends In The Gender Gap For Highly Educated Workers, Joseph G. Altonji, John Eric Humphries, Yagmur Yuksel, Ling Zhong

Cowles Foundation Discussion Papers

This paper examines the gender gap in log earnings among full-time, college-educated workers born between 1931 and 1984. Using data from the National Survey of College Graduates and other sources, we decompose the gender earnings gap across birth cohorts into three components: (i) gender differences in the relative returns to undergraduate and graduate fields, (ii) gender-specific trends in undergraduate field, graduate degree attainment, and graduate field, and (iii) a cohortspecific “residual component” that shifts the gender gap uniformly across all college graduates. We have three main findings. First, when holding the relative returns to fields constant, changes in fields of …

Reducing Residential Landscape Water Use In Utah: Technologies And Strategies, Maya Cottam, Kendall Becker, Katlyn Stemmler, Shital Poudyal, Wesley Crump, Lewis Kogan, Scott Hotaling

All Current Publications

Water conservation is a critical issue in Utah, and several actions are already underway to help lower residential landscape water use. Strategies include smart irrigation controllers, efficient sprinkler bodies and nozzles, drip irrigation systems, soil amendments that increase water-holding capacity, and drought-tolerant grass cultivars for lawns. While additional conservation efforts will be necessary to reach sustainable water management, statewide adoption of current programs can help reduce water use and loss.

Green Synthesis Of Mgo Nanoparticles Via Two Different Methods And Studying Their Structural, Morphological, And Optical Properties, Athraa Hadi Obead, Nada K. Abbas

Baghdad Science Journal

Magnesium oxide nanoparticles (MgO NPs) have been prepared by a green synthesis using the leaves of Ficus carica extract, which can be easily used for various biomedical applications. Magnesium oxide nanoparticles (MgO NPs) prepared by a green synthesis are non-toxic, biocompatible, and environmentally friendly. Fig extract functions as a reducing and stabilizing agent. The precursors used for preparation are from Magnesium Nitrate MgO(n) and bulk magnesium oxide MgO(b) by two different methods. The MgO(n) prepared from Magnesium Nitrate and MgO(b) prepared from bulk magnesium oxide nanoparticles were characterized using UV-visible spectroscopy (UV-Vis) to analyze the absorption patterns, The energy band …

The Influence Of Hunting Cooperation And Fear On The Dynamics Of The Eco-Epidemiological Model With Disease In Both Populations, Nabaa Hassain Fakhry, Raid Kamel Naji

Baghdad Science Journal

Predicting and controlling environmental dynamics requires an understanding of the intricate interaction between hunting cooperation, fear, and other biological elements in eco-epidemiological models. Studying these models is crucial for environmental sustainability and conservation, as seen by the rise in infectious diseases caused by population growth and interactions among organisms. The goal of this study is to create a novel mathematical model that takes into account contagious diseases that impact both predators and prey, as well as how cooperative hunting behavior on the part of predators causes anxiety in the prey population. Important features of the model are examined, including the …

Objective Performance Status: Enhancing Cancer Patient Fitness Assessment With Wearable Technology., Joseph Mccollom Do, Mazie Tsang

PCI Publications and Projects

Research output: Contribution to journal › Editorial › peer-review

Covid-19 Crisis: Contemporary Trauma Theory And Clinical Social Workers’ Perspectives Of Work-Related Secondary Trauma Post-Pandemic, Dr. Veronica Y. Griffin

Walden Dissertations and Doctoral Studies

The COVID-19 pandemic was an unprecedented global crisis that challenged clinical social workers’ traditional client-centered strategies and exposed some to secondary trauma. The purpose of this qualitative study was to explore clinical social workers’ perspectives on work-related secondary trauma post-COVID-19 pandemic using the contemporary trauma theory as the theoretical framework. The research question involved exploring their perspectives of how this trauma affected their biopsychosocial functioning. Semi-structured interviews were conducted with eight participants who were clinical social workers between 28 and 36. Using thematic analysis, themes were identified and grouped into the three functioning groups: personal, relationships, and career. Twelve themes …

Change For The Use Of Phenobarbital In Severe Alcohol Withdrawal Syndrome, Rylee J. Studiner

Walden Dissertations and Doctoral Studies

Alcohol withdrawal syndrome (AWS) is a critical condition commonly encountered in hospital settings. If not properly treated, AWS can progress to seizures, delirium tremens, and death. Traditionally, benzodiazepines guided by the Clinical Institute Withdrawal Assessment for Alcohol Scale, Revised (CIWA-Ar), have served as a mainstay of treatment. However, emerging evidence supports the use of phenobarbital as a pharmacologic alternative and the Severity of Ethanol Withdrawal Scale (SEWS) as a more objective and clinically practical assessment tool. This doctor of nursing practice (DNP) project aimed to develop an evidence-based clinical practice guideline (CPG) for the use of phenobarbital in managing severe …

Triage Of Road Injury Casualties - The Role Of Bystanders: A Scoping Review, George Stephen Russam, Jake Gluyas-Harris, Nicholas Aveyard, Tim Nutbeam

Peninsula Medical School

Background: Bystanders have the potential to be a critical component of the Road Injury Chain of Survival, particularly in the early phases of injury recognition, scene assessment, and emergency service activation. Their potential role in trauma triage remains underexplored. This scoping review aims to examine the existing evidence of the use of bystanders in triage—both laypersons and non-clinical professionals—during the prehospital phase of road injury and other trauma scenarios. Methods: A systematic search was undertaken across MEDLINE, CINAHL, and the Psychology & Behavioural Sciences Collection using the EBSCO Host platform, with supplementary hand searches via Google Scholar and reference screening. …

Comparative Modeling Of Nuclear Energy Consumption In The United States And France: An Optimized Structure-Adaptive Grey Model, Alae Chahid '25, Naima Shifa

Student Research

This study investigates nuclear energy consumption trends in the United States, and France by applying advanced time-series modeling and computational optimization techniques. Using annual consumption data from 2005 to 2023, the research compares the predictive accuracy under data scarcity of the AutoRegressive Integrated Moving Average (ARIMA), Grey Model (1,1,t), Grey Model(1,1,t²), and an Optimized Structure-Adaptive Grey Model (OSGM). This OSGM (1,1,_) the traditional Grey Model (1,1) by introducing time-dependent terms and parameter tuning through particle swarm optimization and Monte Carlo simulations. Models are trained and tested using an in-sample and out-of-sample period framework. Then, forecast accuracies are compared using Mean …

Context And Form In Garden Classification, David Fenner

Contemporary Aesthetics (Journal Archive)

Correctly classifying a garden is important because it allows us to appreciate a garden for what it is, create maintenance agendas for gardens, compare gardens to others in appropriate ways, and meaningfully evaluate gardens. We may correctly classify a garden by first deciding on an appropriate taxonomic approach and, second, by fitting gardens into their appropriate taxa. The first is achieved through justifying the organizing schema by ensuring that it significantly meets the goals mentioned above, results in meaningful and satisfying garden appreciation, and is comprehensive in scope—the creation of this taxonomic approach necessarily includes reference to a garden’s context. …

Tracing Priming Effects In Palsa Peat Carbon Dynamics Using A Stable Isotope-Assisted Metabolomics Approach, Christian Ayala-Ortiz, Moira Hough, Elizabeth K. Eder, David W. Hoyt, Rosalie K. Chu, Jason Toyoda, Steven J. Blazewicz, Patrick M. Crill, Ruth Varner, Scott R. Saleska, Virginia I. Rich, Malak M. Tfaily

Michigan Tech Publications

Introduction: Peatlands store up to a third of global soil carbon, and in high latitudes their litter inputs are increasing and changing in composition under climate change. Although litter significantly influences peatland carbon and nutrient dynamics by changing the overall lability of peatland organic matter, the physicochemical mechanisms of this impact—and thus its full scope—remain poorly understood. Methods: We applied multimodal metabolomics (UPLC-HRMS, ¹H NMR) paired with ¹³C Stable Isotope-Assisted Metabolomics (SIAM) to track litter carbon and its potential priming effects on both existing soil organic matter and carbon gas emissions. Through this approach, we achieved molecule-specific tracking …

Autonomous Driving Of A Guided Emergency Service Robot With Route Tracking Control, Saif Talib Abbas Albasrawi, Lamyaa Sabeeh Ashour Al-Lami

Baghdad Science Journal

This work presents a method for controlling the travel routes that tracked robots use to get around their environments. The algorithm utilized in model-predictive control could be implemented in a vehicle to make the vehicle capable of driving itself if an emergency arises. It is anticipated that soon, collaboration between edge clouds will become more commonly used to connect and control various pieces of rescue equipment. The Linear Model-Predictive Control algorithm, also known as LMPC, is an excellent choice for controlling the path that the rescue robots will take because it makes efficient use of the limited computational resources available …

Dissolution Mechanism Of Nonionic Polyether Surfactants In Supercritical Co2, Ning Xu, Yanling Wang, Baojun Bai, Shizhang Cui, Zan Gao, Yu Zhang, Di Li, Wenjing Shi, Wenhui Ding, Peixu Ma

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Polyoxyethylene ether is an efficient CO₂-philic compound with significant potential applications in CO₂ flooding, which requires CO₂-philic surfactants with high solubility in supercritical CO₂ (scCO₂). This study elucidates the molecular and atomic-level dissolution mechanism of the fatty alcohol polyoxyethylene ether (AEO) in scCO₂ by combining phase-behavior experiments and molecular dynamics simulations. The solubility of AEO in scCO₂ is measured using a semiconductor laser. AEO containing three polyoxyethylene (EO) groups exhibited the highest solubility in scCO₂.The solubility of AEO in scCO₂ decreased with an increase in the number …

Recent Progress And Scientific Challenges In Wire-Arc Additive Manufacturing Of Metallic Multi-Material Structures, Sainand Jadhav, Sambhaji Kusekar, Akash Belure, Satyavan Digole, Abhijeet Mali, Muralimohan Cheepu, Manoj Mugale, Suhas Alkunte, Duckbong Kim

EKU Faculty and Staff Scholarship

Metallic multi-material structures are heterogeneous structures characterized by changing composition, microstructures, and site-specific characteristics, advantageous for numerous applications where multifunctionality is desired. Metallic multi-material structures are known as bimetallic structures (BSs), which are functionally graded materials (FGMs). In recent years, wire-arc additive manufacturing (WAAM) advanced as a promising additive manufacturing process to realize the fabrication of these structures due to its high deposition rate, cost-effectiveness, and material utilization efficiency. This review presents a comprehensive overview of the recent progress, processing strategies, and scientific challenges in WAAM of multi-material structures. The paper begins with an introduction to multi-material structures, followed by …

Native Ticks As A Model For The Effectiveness Of Fire As A Tool For The Management Of Cattle Fever Ticks In South Texas, Lauren P. Maestas, Sarah E. Mays Maestas, Kathleen M. Yeater, Manuel Zavala, Reyes Garcia, John A. Goolsby

School of Integrative Biological & Chemical Sciences Faculty Publications

The species of cattle fever ticks (CFT) present in North America, Rhipicephalus (=Boophilus) annulatus, and R. microplus, remain an important agricultural and economic burden. The use of acaricides to control CFT has been a common practice over the past half century. However, alternative strategies for control are needed to improve the options for sustainable pest control. Fire is a tool to manage vegetation, and some evidence supports its potential for use to control ticks. We evaluated the effectiveness of fire as a management tool for ticks in South Texas. Our site was a 28.2-ha property in Cameron …

Tort Liability For Failure To Age Gate: A Promising Regulatory Response To Digital Public Health Hazards, Matthew B. Lawrence, Brett Frischmann, Avi Sholkoff

Faculty Publications

Tort liability for failure to “age gate” is a promising legal response to the public health hazards of AI, social media, sports gambling, and other digital spaces. Tort liability for failure to “age gate” hinges liability for harms to minors on an app’s failure to take reasonable steps to prevent minors from gaining access or otherwise to apply appropriate governance rules, such as privacy-protective default settings or ensuring genuine parental consent. While no one legal response is a panacea, tort liability for failure to age gate carries several distinctive advantages that make it a particularly promising option at this stage …