Comparative Analysis Of Chemical Compounds And Metal Contaminants In Medical Grade Versus Over-The-Counter Sodium Hypochlorite Solutions, Abdulrahman Essaedi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction:

Abstract

Endodontic treatment aims to prevent or address apical periodontitis by reducing intracanal bacterial populations to promote tissue healing, requiring thorough debridement and disinfection of the canal space. This study aims to examine the presence of trace metal elements and chemical compounds in over-the-counter (OTC) and medical-grade sodium hypochlorite (NaOCl) solutions.

Method

Over-the-counter NaOCl brands (Clorox® and Great Value®) and medical grade 6% NaOCl solutions (CanalPro® and Chlor-Xtra®) were purchased, stored in amber glass bottles, and tested in triplicate. Each was analyzed using mass spectrometry, identifying 7881 chemical compounds with statistical comparisons via adjusted p-values, fold-change, and heat maps. …

Clinical Significance Of Gutta Percha Variability, Alex R. Pancake

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: The production of gutta percha points as root canal therapy filling materials vary from hand processing to machine processing with a range of acceptable levels of error (tolerance). Similarly, endodontic files manufactured to complement corresponding gutta percha points exhibit specified levels of tolerance. Investigations into the consistency among manufacturers of files and gutta percha points is limited. The aim of this study is to see how variability in apical gauge and taper of gutta percha points affected the clinical performance during cone try in. The null hypothesis of this study is that there is no difference in two gutta …

Dentin-Sealer Bond Strength. A Review: An In-Vitro Comparison Between Guttaflow 2 ®, Endosequence Bc High Flow ®, Tubli-Seal ®, Sealapex ®, And Ah Plus Jet ® Sealers., Zied Diab

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: One objective of non-surgical endodontic therapy is the formation of a hermetic seal with elimination of any portal of entry of bacteria and their byproducts into the root canal space from periapical tissue. Extensive research has been conducted to determine ideal endodontic sealers. Bioceramic sealers have risen to prominence due to reported decreased shrinkage, less toxicity, and superior bond strength to root dentin compared to zinc oxide eugenol, calcium hydroxide, and resin-based sealers. GuttaFlow2®, a new sealer on the market, is composed of calcium silicate in combination with gutta-percha particles. Researchers from Coltene (Altstätten, Switzerland), the manufacturer of GuttaFlow2® …

Slope Stability Below Historic Pre-Law Mine Benches In The Northern Coalfields Of West Virginia, Muhammad Ali

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

Slope stability below historic pre-law mine benches in the northern coalfields of West Virginia

Muhammad Ali

Slope failures and landslides are commonly occurring geohazards in the state of West Virginia and in the Appalachian region due to weak geologic strata, steep slopes, a humid climate, geologically recent river incision, and human landscape modifications. Historic surface mining has resulted in large-scale landscape alterations. Surface mining conducted before the Surface Mine Control and Reclamation Act (SMCRA) of 1977 did not require reclamation to approximate original contour; as a result, remnant highwalls and mine benches are common throughout the state and region. …

Exploring Physical Activity Promotion And Implementation Within Inclusive Post-Secondary Education Programs: A Mixed-Methods Design, Shannon P. Zimmerman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Adults with intellectual and developmental disabilities (IDD) exhibit lower physical activity levels compared to their non-disabled counterparts, with only 23% of U.S. adults with IDD engaging in the recommended 60 minutes per day of moderate-to-vigorous physical activity. Inclusive Post-Secondary Education (IPSE) programs in the U.S. offer an opportunity to promote physical activity and address the critically low physical activity levels. Few IPSE programs have formalized physical activity courses, warranting an evaluation and development of the national curriculum in this area. This study expands on previous work by examining current physical activity promotion strategies at both the program and course levels. …

Implementation Of Bayesian Statistics To Answer Diverse Engineering Questions: Applications In Cancer Immunology And Engineering Education, Anika C. Pirkey

Graduate Theses, Dissertations, and Problem Reports (ETD)

Quantitative Systems Pharmacology (QSP) refers to a mechanistic modeling approach used for assessing potential therapeutics by linking the molecular and cellular level mechanisms of the disease and therapeutic to the system-wide dynamics and clinical endpoints relevant to the disease. Although the field of QSP is still in its relative infancy, the mathematical methodology employed to predict the kinetics of these systems are not new and can be applied to a wide variety of systems. For instance, similar to QSP’s goal of guiding the development of novel therapeutics for various disease states, there exists a need to develop novel interventions in …

Hepatic Mrna Expression Of Innate And Adaptive Immune Genes In Beef Steers With Divergent Residual Body Weight Gain, Deborah Ologunagba

Graduate Theses, Dissertations, and Problem Reports (ETD)

Immune system function is critical to maintaining the health and increasing productivity of cattle, affecting both their growth and their disease resistance. In an efficient immune system, the liver assumes an integral function in detoxification and metabolic processes and contributes substantially to overall production and immunity. In this study, we evaluated the hepatic mRNA expression of genes involved in innate and adaptive immunity in crossbred beef steers with either a positive or negative residual body weight gain (RADG). Positive-RADG beef steers (n = 8; RADG = 0.76 kg/d) and negative-RADG beef steers (n = 8; RADG = -0.64 kg/d) were …

Characterizing 4,4’-Methylene Diphenyl Diisocyanate Exposure In Primary Human Epidermal Keratinocytes: A Multi-Omics Approach, Brandon F. Law

Graduate Theses, Dissertations, and Problem Reports (ETD)

Exploring the routes of exposure and biological fate of 4,4’-methylene diphenyl diisocyanate (MDI) has been a challenge for many years. Occupational exposure to MDI can result in the development of occupational asthma (MDI-OA) which results in loss of productivity, large economic costs, and costs to the individual worker. Initially, it was thought that respiratory exposure to MDI was the most likely route leading to MDI-OA. Industries utilizing MDI have been successful at controlling airborne concentrations according to industrial hygiene assessment and newly diagnosed cases of MDI-OA decreased and plateaued. New research suggests that dermal exposures to MDI may explain this …

Pilot Quality Improvement Project To Update Surgeon Preference Cards Of A Community Hospital's Orthopedic Service, Jessica R. Mitchell

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Implementation of a Pilot Quality Improvement Project to Update Surgeon Preference Cards

of a Community Hospital’s Orthopedic Service

Jessica R. Mitchell

Problem Statement: Over time, surgeons change preferences for surgical equipment, and their preference cards need updating. Failure to update preference cards leads to impaired staff communication, opening of unnecessary equipment, excess waste, increased cost to patients and facilities, and potential threats to patient safety.

Background: Members of the orthopedic surgical team in a community hospital in suburban West Virginia wanted to establish a process to regularly update outdated surgeon preference cards (SPC) for several common orthopedic procedures. The …

Genetic Knowledge And Causal Beliefs: Implications For Health Behavior In Clinical And Non-Clinical Samples, Jamey T. Brumbaugh

Graduate Theses, Dissertations, and Problem Reports (ETD)

Objective: As the genomic era in healthcare continues to surge, it is vital to examine genetically-related psychological concepts, such as genetic knowledge and genetic causal beliefs, in genetically relevant clinical groups. Parents /caregivers of children born with cleft lip and/or palate represent a population whose knowledge and beliefs about genetics may be influenced by their frequent utilization of genetically-related healthcare services (e.g., genetic testing and genetic counseling). To date, little is known about how such beliefs vary across disease types. Even less is known regarding how disease-specific genetic causal beliefs relate to perceived behavioral control for disease development. Method: A …

Taking The Red Pill: A Content Analysis Of Ambivalent Sexism And Precarious Manhood In Alpha Male Podcasts, Madalen Lea Fields

Graduate Theses, Dissertations, and Problem Reports (ETD)

Podcasts have become increasingly popular across various platforms (e.g., Spotify or Apple podcasts). A more recent trend is the emergence of “alpha male” podcasts. The goal of these podcasts is to instruct young men how to stop being “betas” and on achieving “alpha male” status. These podcasts are a subset of the manosphere, a term used to describe media focused especially on hegemonic masculinity, which is characterized by their promotion of misogynistic beliefs and sexist rhetoric. Drawing upon social science research, three forms of sexism (i.e., ambivalent sexism, precarious manhood and violence against women) serve as analytical frameworks for understanding …

Low Power Remote Sensing System For Ceramic Thermocouples, Syed Khaleduzzaman

Graduate Theses, Dissertations, and Problem Reports (ETD)

The ceramic thermocouple sensor is a promising alternative to traditional thermocouple due to their corrosion resistance and cost-effective manufacturing. Currently, no electronic Interface or Integrated Circuit solution is commercially available which can be used to interface these thermocouples at low-cost and low power for accurate temperature measurement. An electronic system is needed to use these ceramic sensors which consumes less amount of power for an extensive period of time with remote monitoring option.

This thesis proposes a low-power electronic remote sensing system that works for ceramic thermocouples. The system consists of three parts. They are battery-operated sensor node electronic circuit, …

Examination Of The Time Course Effects Of Electronic Cigarettes On The Thoracic Aorta, Madison Robinson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Endothelial dysfunction is a critical early marker of the pathogenesis of cardiovascular disease and a pathological biomarker in cigarette smokers. Emerging evidence finds similar cardiovascular risks resulting from electronic cigarettes (E-cig) as that seen from smoking. Logically, the time or length of exposure to E-cigs will likely influence the development of vascular dysfunction, however, the length of exposure that causes permanent damage is unknown. The goal of this study was to determine the potential window of chronic E-cig exposure that results in vascular dysfunction, which is marked by endothelial dysfunction, microvascular dysfunction, and stiffening of arteries. Based on prior chronic …

Experimental And Chemical Modeling Of Applied Dc Electric Field Induced H2 – Air Axisymmetric Laminar Co-Flow Diffusion Flames With Low Carbon Impurities, Susith Dilshan Pathmasiri Gunamuni Halowitage

Graduate Theses, Dissertations, and Problem Reports (ETD)

The effect of externally applied DC electric fields on flame structure was investigated in a stationary atmospheric axisymmetric laminar H₂–Air flame with less than 100 ppm carbon equivalent impurities. Flame OH chemiluminescence signals were recorded using a UV-sensitive CCD array as a function of voltage (+10 to -10 kV) applied to a stainless-steel ring electrode placed around the burner nozzle. Changes in chemiluminescence signal are reported as a function of electrode height above the burner, airflow, and fuel composition. Significant changes in OH* distributions were observed for voltages below -5 kV. Under optimum conditions, the height of the …

Development Of Probabilistic Dynamic Model Building And Bayesian Machine Learning Approaches, Samuel Oladayo Adeyemo

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Development of Probabilistic Dynamic Model Building and Bayesian Machine Learning Approaches

Samuel Adeyemo

The recent years have seen a tremendous increase in the use of artificial intelligence (AI) and machine learning (ML) for the development of data-driven mathematical models needed for performing real-time optimization, model-based control, performance optimization, dynamic data reconciliation, and process performance monitoring. However, the development of data-driven models is faced with some challenges including lack of model interpretability, sensitivity of algorithm to noise in training data, limited extrapolation capabilities and violation of conservation laws. Drawing motivation from these existing gaps, this work aims to develop robust …

Development Of Dynamic Mass-Energy-Thermodynamics Constrained Hybrid Neural Network Models For Process Systems Applications, Angan Mukherjee

Graduate Theses, Dissertations, and Problem Reports (ETD)

First-principles models can provide very good predictions even for cases when there are no data at all, or data are limited in certain range of operating conditions, or for cases where data collection is infeasible. However, the development of accurate first-principles models for complex nonlinear dynamic systems can be time consuming, computationally expensive, and may be infeasible for certain systems due to lack of sufficient knowledge (information). It is also challenging to adapt first-principles models for time-varying systems. Furthermore, it can be difficult, if not impossible, to develop accurate models for some complex phenomena that are poorly understood. On the …

Regulation Of Diabetic Cardiomyopathy Through Mitochondrial Import Of Long Non-Coding Rnas, Andrew Dodge Taylor

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: The leading cause of mortality in patients with diabetes mellitus is heart failure. When mitochondrial health and function is disrupted, cardiac contractile function is compromised. Therefore, understanding mitochondrial regulation may benefit predicting and countering diabetic cardiomyopathy. MicroRNAs (miRNAs) play a crucial role in diabetic cardiac mitochondrial protein expression. Long noncoding RNAs (lncRNAs) have been shown to regulate miRNAs, but not in the mitochondrion. Additionally, it has yet to be confirmed if lncRNAs utilize the same mechanisms for mitochondrial import that miRNAs use, or if lncRNA presence in the mitochondrion fluctuates in diabetic mitochondria like miRNA presence does. The …

Extracting Meaning: Museums, Power, And Shaping The Story Of Coal, Danielle Marie Petrak

Graduate Theses, Dissertations, and Problem Reports (ETD)

Organized into four case studies, this dissertation investigates how longstanding power relationships in the Central Appalachian coalfields have shaped the preservation and presentation of mining history at museums and historic sites. It contributes to scholarship in the fields of public history and Appalachian history by exploring how apolitical, noncritical, and biased narratives at mining history sites have obstructed the public’s acknowledgement of larger forces and systems that govern Appalachian society and often bring harm and misinformation to coalfield residents. To present more exhaustive, nuanced, and innovative interpretations of bituminous coal mining’s past and present, museums and historic sites must redirect …

Demonstrating The Need For Intergenerational Trauma-Specific Substance Use Treatment For Mothers Receiving Substance Use Treatment And Their Children, Brittany Ti-Esha Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

For decades the United States has faced substance use epidemics that have devastating public health consequences, with the most recent epidemic being the opioid epidemic. While the substance that is the center of the epidemic’s changes over time, one factor that has been found to be positively related to substance use has remained consistent, that preventable risk factor is adverse childhood experiences (ACEs). Those who experience ACEs are at elevated risk for developing SUD. If the trauma that is a result of experiencing ACE is not treated it can complicate recovery and impact the individuals’ families. The children of individuals …

Advanced Techniques In Time Series Forecasting: From Deterministic Models To Deep Learning, Xue Bai

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation discusses three instances of temporal prediction, applied to population dynamics and deep learning.

In population modeling, dynamic processes are frequently represented by systems of differential equations, allowing for the analysis of various phenomena. The first application explores modeling cloned hematopoiesis in chronic myeloid leukemia (CML) via a nonlinear system of differential equations. By tracking the evolution of different cell compartments, including cycling and quiescent stem cells, progenitor cells, differentiated cells, and terminally differentiated cells, the model captures the transition from normal hematopoiesis to the chronic and accelerated-acute phases of CML. Three distinct non-zero steady states are identified, representing …

Investigation Of Synergistic Effect Between Polystyrene And Polyethylene Under Conventional Thermal Heating And Microwave Heating, Thang Luong

Graduate Theses, Dissertations, and Problem Reports (ETD)

Single-use plastics (Low Density Polyethylene, LDPE; Polystyrene, PS; Polypropylene, PP) are increasingly used in the modern world, with their usage growing every year. An effective method to manage the resulting waste is urgently needed, as landfilling and incineration have proven harmful to the environment in the long term. Mechanical recycling may not maintain the desirable characteristics of the single-use plastics through several cycles. Pyrolysis emerges as a promising approach to address plastic waste. Given that single-use plastic waste often comes in a mixture, combining plastic in the feedstock is a viable solution to effectively convert these polymers altogether to gain …

Dynamic Load Identification Using Optimal Sensor Placement And Dynamic Condensation Methods, Iole Pecora

Graduate Theses, Dissertations, and Problem Reports (ETD)

Knowledge of excitation loads that structures experience during their service life is pivotal in different engineering fields, not only from a structural design optimization point of view but also as prevention of possible damages to the structures themselves. However, in case of dynamic events such as tornadoes, structures subjected to impulsive load due to their vicinity of explosions, the excitation load cannot be directly determined through direct measurements. In these scenarios, the inverse problem is used, and it is called load identification. This type of problem tries to determine the excitation load knowing the system response through a series of …

Carl Philipp Emanuel Bach’S Sonata In C Minor, Wq. 65/31: A Study Of Performance Practice, Weiyang Sun

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation discusses concepts of performance practice in Carl Philipp Emanuel Bach's keyboard works, including historical instruments, fingering, articulation, ornamentation, dynamics, rhythm, and other related topics. It provides an interpretive analysis of C. P. E. Bach's Sonata in C Minor, Wq. 65/31, for keyboard, as a way to discuss the application of these issues. Additionally, this dissertation includes a brief biography of C. P. E. Bach, a list of his keyboard works, and a discography of current and historical recordings of the Sonata in C Minor, Wq. 65/31.

Translational Approaches To Address The Metastatic/Resistant (Mr) Phenotype Of Non-Small Cell Lung Cancer Brain Metastases, Kent L. Marshall

Graduate Theses, Dissertations, and Problem Reports (ETD)

Lung cancer remains the most frequently diagnosed malignant neoplasm shared in men and women worldwide, second only to the sexually dimorphic prostate cancer in men and breast cancer in women. Overall, lung cancer was responsible for 12.5% of new cancer cases globally in the year 2022. Of these cases, 80-85% are non-small cell lung cancer (NSCLC), a highly genotypically diverse sub-type of lung cancer. Over the past three decades, extraordinary improvement in screening, smoking cessation, early diagnosis and targeted therapy have been made, improving NSCLC survival markedly. However, as patients are surviving their primary disease better, there is a temporal …

A Domain Adaptation Approach For Morphology-Independent Cell Instance Segmentation, Voke Rotimi Brume

Graduate Theses, Dissertations, and Problem Reports (ETD)

In recent years, there has been an upward trend of utilizing deep learning to automate cell segmentation processes. As global storage capacities grow exponentially, so have microscopy data collections become larger and more frequent. To benefit from them, accurate and precise quantitative analysis tools like cell instance segmentation have become necessary. However, the highly variable nature of these data collections necessitates retraining segmentation models to maintain high accuracy on new data collections. This process is time-consuming and labor-intensive since a user must annotate much of the new data, usually under the supervision of a medical professional. The problem is further …

The Identification And Characterization Of Novel And Improved Antigens For Next-Generation Pertussis Vaccines, Gage Michael Pyles

Graduate Theses, Dissertations, and Problem Reports (ETD)

Whooping cough, or pertussis, is a highly infectious respiratory disease caused by infection with the Gram-negative bacterial pathogen Bordetella pertussis. Pertussis affects all age groups and populations; however, it is most severe in infants who are too young to receive vaccinations and remains a global health concern with more than­­­­ 200,000 cases reported globally in 2023. Vaccines against pertussis have been available in the United States since the 1940’s with the development and widespread use of whole cell pertussis vaccines. Following their introduction, the incidence of pertussis was controlled and limited to fewer than 5,000 cases per year. Despite …

Power Safety Plan Checklist As An Intervention In The Operating Room, Scott John Fankhauser

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

Power Safety Plan Checklist as an Intervention in the Operating Room

Scott J. Fankhauser

Background: Intraoperative power failures (IOPF) force anesthesia providers to quickly make decisions to prevent patient harm when equipment does not operate as designed. Familiarity with alternative methods is critical during this decision process to deliver high-quality care during IOPF events. Purpose: The purpose of this project was to assess the impact of a checklist on anesthesia providers’ perceptions regarding continuation of care during an IOPF. Interventions: Pre- and post-intervention surveys were conducted during a simulation and education setting for annual competencies. Methods: The study …

Changes In Psychiatric Diagnosis Associated With Sars-Cov-2 Infection And Predicting The Development Of New Psychiatric Illness In Covid Patients By Using Machine Learning Approach: A Study Using The Us National Covid Cohort Collaborative (N3c), Asif Rahman

Graduate Theses, Dissertations, and Problem Reports (ETD)

The enduring impact of COVID-19 extends beyond acute illness, with potential long-term psychiatric consequences raising significant concern among healthcare professionals and researchers alike. Emerging evidence suggests a multifaceted relationship between COVID-19 and the development of different psychiatric illnesses like Schizophrenia Spectrum and Psychotic Disorders (SSPD), Depression, Bipolar disorder, Personality disorder, Trauma, and a range of other mental health conditions. Considering these emerging connections, our study endeavors to rigorously assess the associations between COVID-19 and various psychiatric illnesses while simultaneously employing machine learning techniques to predict the development of new psychiatric disorders in individuals affected by the virus. Leveraging the extensive …

Breaking The Silence: International Students’ Communication About Sexual Assault And Opportunities For Improved Prevention Messaging, Samaha Ghani

Graduate Theses, Dissertations, and Problem Reports (ETD)

The beginning of college campus life is one of the most exciting phases of student life. However, for some students, it might pose a threat in the form of sexual violence. In the United States, sexual violence is highly pervasive, placing college students at a greater risk of victimization. Currently, there is a lack of data on sexual crimes within the international student population on U.S. college campuses due to cultural and language barriers. As such, the purpose of this study is to explore international students’ communication needs around the topic of sexual consent and sexual violence. This vulnerable and …

Iron Coated Sand: A Sustainable Substrate Amendment For Nutrient Management And Growth Of Floriculture Crops, Savannah Mead

Graduate Theses, Dissertations, and Problem Reports (ETD)

Acid mine drainage and phosphorus pollution are two of the most pervasive forms of water contamination in Appalachia and globally. The horticultural industry is a contributor to nutrient pollution via leaching from greenhouses, necessitating the adoption of more sustainable practices for container production in controlled environments. In this thesis, an acid mine drainage-based iron-coated sand product was assessed on its effectiveness for phosphate adsorption when used as a sustainable substrate amendment for soilless container production of flowering ornamentals. The first study centered around the amount of iron-coated sand to use for production of petunias, pansies, and chrysanthemums. Iron-coated sand at …