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Comparison Of Push-Pull Air Curtain To Overhead Downdraft Systems On Aerosol Containment And Distribution In Controlled Environments, Manal Mutairi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Comparison of Push-Pull Air Curtain to Overhead Downdraft Systems on Aerosol Containment and Distribution in Controlled Environments.

This dissertation looks at the ongoing issue of tiny airborne particles created during medical and dental procedures and evaluates ways to reduce the risk of exposure for healthcare workers and patients to these particles. The first study focuses on the size, how long particles stay in the air, and how far they travel from common medical procedures that create aerosols, showing that tiny particles (less than 5 µm) can stay in the air long enough to escape basic droplet controls. As a …

Multi-Omic Characterization Of Immune And Metabolic Responses To Inflammatory Challenges In Sheep, Samanthia Raceine Johnson

Graduate Theses, Dissertations, and Problem Reports (ETD)

To meet the demands of the growing population, it is imperative to develop sustainable and applicable ways to improve animal health and productivity. The first step in doing so is understanding the mechanisms that govern health and immune response and find ways to appropriately modulate them to improve animal health and productivity. The objective of this study is to use multi-omic techniques to understand breed-specific immune responses in sheep that may contribute to their resistance and susceptibility to parasites and to a greater extent, immunocompetence. Known parasite-resistant breed, St. Croix (STC) were compared to parasite susceptible Suffolk (SUF) sheep for …

Implementation Of A Ventilator-Associated Pneumonia Bundle To Reduce The Incidence Of Ventilator-Associated-Pneumonia And Improve Patient Care, Taylor Ryan Rice

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Ventilator-associated pneumonia (VAP) is a concerning complication that can

develop from complications when a patient is placed on a mechanical ventilator. Endotracheal

intubation puts patients at risk for micro aspiration, which can lead to VAP.

Evidence Review: Nine articles were selected for review; after critical appraisal, seven were

kept for further review. Evidence in these articles shows that using evidence-based methods in a

VAP bundle can decrease the length of stay, mechanical ventilator days, and the incidence of

VAP.

Purpose: The purpose of this project was to improve oral care for intubated patients and keep

the incidence of VAP …

Exploring The Application Of Wastewater Monitoring To Determine The Prevalence And Diversity Of Influenza On The Campus Of West Virginia University, Lakyn Renee Sanders

Graduate Theses, Dissertations, and Problem Reports (ETD)

Influenza viruses (IV) affect populations globally, with the World Health Organization (WHO) estimating that IV are responsible for an estimated 3-5 million infections and 290,000 – 650,000 deaths annually^1–3. More specifically, the 2019-2020 IV season is associated with an estimated 38 million illnesses and 22,000 deaths in the United States alone⁴. IV are rapidly spread between individuals through direct contact with infected individuals, contaminated surfaces, or aerosolized virus particles². Traditional IV infection monitoring relies on clinical screening of patients presenting influenza-like symptoms, commonly through the use of multi-target panel tests such as the BioFire …

Pbmc Transcriptome Analysis Following Lps Stimulation Reveals Distinct Inflammatory Strategies In Feed-Efficient And Inefficient Beef Cattle, Yarahy Leal

Graduate Theses, Dissertations, and Problem Reports (ETD)

Improving feed efficiency is a primary objective in livestock production, serving as a major driver of profitability and sustainability in beef cattle operations as feed costs continue to rise. Residual feed intake (RFI) and residual average daily gain (RADG) are widely recognized indicators of feed efficiency and are commonly used as selection traits to reduce production costs and environmental impact. Previous research suggests a functional shift in transcriptional activity associated with immunity depending on efficiency phenotype, with evidence of greater immune system robustness in more efficient animals. This dissertation examines the molecular mechanisms linking feed efficiency and immune competence and …

Be A Man: Hypermasculinity And Hostile Attribution Bias As Predictors Of Violence, Kaley Nicole Potter

Graduate Theses, Dissertations, and Problem Reports (ETD)

In recent years, violence has risen to record-high numbers in communities and correctional facilities, with men perpetrating the vast majority of violent crimes. Hypermasculine values (e.g., power, aggression, and domination) have been linked to aggressive and violent behavior. Hostile attribution bias, which leads individuals to attribute hostile intent to neutral or ambiguous stimuli, has also been linked to aggression.

The current study used structural equation modeling (SEM) to examine hypermasculinity and hostile attribution bias as predictors of proclivity for violence, comprised of aggression and historical violence. The model was iteratively modified to assess changes in model fit and constructs. Male …

Mapping The Distribution Of The Common House Mosquito (Culex Pipiens) In The City Of Spokane: Mosquito Breeding Sites And Blood Meal Analysis, Oluwapelumi Hannah Sonoiki

EWU Masters Thesis Collection

Mosquitoes in the genus Culex are the primary vectors of West Nile virus (WNv) in the United States, with Culex pipiens and Culex tarsalis serving as the dominant species in Spokane. In urban environments, catch basins and other artificial water bodies that collect stagnant and polluted water provide favorable breeding habitats for Culex pipiens. This study aimed to assess the spatial distribution and seasonal dynamics of Culex larvae in Spokane. We examined 303 randomly selected catch basins in the summer of 2025, and at each site we recorded the presence or absence of water, water depth, and mosquito larval …

Could Peri-Coronary Fat Thickness Predict Severity Of Pulmonary Covid 19 And Post Covid-19 Pulmonary Scarring?, Basma A El-Ged, Dalia Fahmy, Mohamed Hamoda, Mohamed Tohlob, Heba M Abou El-Atta

Mansoura Medical Journal

Objective: to study the correlation between peri-coronary fat thickness (PCFT) and clinical disease severity in patients with proved COVID-19, as well as post COVID-19 scarring.

Patients and methods: This retrospective comparative study included 202 patients with pulmonary COVID-19 who were referred for Chest High Resolution Computed Tomography (HRCT). Patients were further classified into Group A who had non-severe covid 19 disease and group B who had severe and critical disease according to WHO criteria. CT severity score (CSS), Total fibrosis score (TFS) and peri coronary fat thickness (PCFT) were evaluated and compared for both groups in the CT scans of …

Epidemiologic, Clinical And Genetic Characteristics Of Familial Mediterranean Fever In Egyptian Children’S Tertiary Care Center, Ghada Ahmed Elsayed Mgahed, Mayada Sabry Zeid, Ali Sobh, Shaltout A

Mansoura Medical Journal

Background: Familial Mediterranean fever (FMF) is an inherited disorder known by recurrent, brief, and self-limiting episodes of fever and serosal inflammation. It is primarily defined by acute inflammatory involvement of serosal membranes, including the pleura, peritoneum, and/or synovial tissues, typically associated by fever. This inflammatory cascade is inherently self-propagating and, if inadequately controlled, may lead to recurrent episodes or sustained inflammatory activity.

Aim of the work: To examine the clinical and demographic characteristics of individuals with childhood- initiation FMF, to determine the prevalence of the most frequent mutations in the FMF-linked gene within this population, and to assess the …

Hypoalbuminemia As A Predictive Factor For Acute Kidney Injury In Pediatric Patients Running Title: Hypoalbuminemia In Aki Pediatrics, Kareem El-Saeed El-Maasrany, Ayman Hammad, Hosam Zaghloul, Ahmed Elhusseiny

Mansoura Medical Journal

Aim: Hypoalbuminemia is a well-known risk factor for illness and death, but its role as a particular predictor of acute kidney injury (AKI) is still not fully understood. This study intended to evaluate the role of hypoalbuminemia as a predictive factor for AKI outcome among pediatric patients, regarding hospital stay, kidney replacement therapy and mortality rate.

Subjects and Methods: This prospective observational cohort was conducted on 70 children with AKI divided into two groups: group I (35 AKI children combined with hypoalbuminemia) and group II (35 AKI children without hypoalbuminemia). All participants were subjected to full history taking, clinical examination …

The Role Of Adult Appendicitis Score In Reducing The Negative Appendectomy Rate, Mohamed Mahmoud Mansour El Ghzzawy, Magdy Basheer, Mohamed Balata, Amir A. Fikry

Mansoura Medical Journal

Aim: Approximately 15 – 30% of all acute appendectomies are performed based only on clinical suspicion. A negative appendectomy has a 10–12% morbidity rate, which could be detrimental to patients. The current study aimed to evaluate the effectiveness of adult appendicitis score (AAS) in accurate identification of cases with acute appendicitis.

Patients and Methods: This prospective observational study was conducted on 150 patients who presented with manifestations of acute appendicitis admitted to Mansoura Emergency Hospital.  The AAS was calculated, the decision on appendectomy was solely based on the surgeon’s clinical judgment after taking into consideration all the findings of clinical, …

The Efflorescence Of Apocalypticism (Imminent & Prepping Beliefs): Considering Informational And Motivational Regulatory Mechanisms, James T. Good Mr.

College of Graduate Studies: Theses & Dissertations

In the last quarter of the 21st century, apocalyptic beliefs emerged in scholarly and lay representations notably doubling over the last decade. With nearly forty percent of United States citizen reporting this belief, unfulfilled questions arose: What drives discrepancies in beliefs of an imminent end of the world? Additionally, what drives beliefs in the need to prepare for an end of the world? These individual questions were examined together in this study using Construal Level Theory (CLT) and Regulatory Focus Theory (RFT) in an attempt to identify how psychological mechanisms are significantly affecting the fluctuations, in these self-reported beliefs. A …

A Program Evaluation Research Study Of The Implementation Of Mothers With Mentors: A Dissertation On Shelter From The Rain’S Mentorship Program, Danielle Louise Smith

College of Graduate Studies: Theses & Dissertations

This program evaluation study examines the implementation of the 2025 Shelter From the Rain “Mothers with Mentors” program in Savannah, GA. Utilizing a convergent parallel mixed-methods approach, the study evaluates the program’s acceptability, feasibility, and perceived benefit through the theoretical lenses of the Theory of Planned Behavior (TPB), the Health Belief Model (HBM), and Bonding Social Network (BSN). The analysis incorporates quantitative and qualitative data for participant mentees (n=7) and mentors (n=12), with a specialized paired analysis of five mentor-mentee matches.

The findings indicate a complex landscape of convergence and divergence across the groups. Quantitative results depicted high convergence on …

Assessing And Advancing Pandemic Emergency Preparedness In New York City's Hospitals: A Strategic Management Toolkit Integrating Policy Analysis, Risk Assessment, And Stakeholder Insight, Irrem Jamal

College of Graduate Studies: Theses & Dissertations

This dissertation examines pandemic emergency preparedness in New York City hospitals, which were severely strained during COVID-19, revealing critical gaps between documented plans and operational readiness. Using a multimethod approach combining a survey of 20 stakeholders across city hospitals, semi-structured interviews, and document analysis of policy frameworks and after-action reports, the study identifies a persistent "documentation-execution paradox": while 80% of respondents confirmed clear pandemic plans, only 45% expressed confidence in staffing adequacy, 55% in surge planning realism, and just 45% confirmed regular drills. Qualitative analysis revealed workforce as the single greatest yet most underinvested vulnerability, supply chain fragility rooted in …

Swimming In Uncertainty: Filling Data Gaps And Providing An Educational Platform For Beach Water Quality At Tybee Island, Georgia, Lukas Roberson

College of Graduate Studies: Theses & Dissertations

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Swimming in beaches water contaminated with high levels of bacteria can make you sick. Current monitoring at the public beaches on Tybee Island consists of weekly monitoring and enumeration of fecal indicator bacteria that takes 24 hours for results. If the number of bacteria exceed regulatory limits, a public health advisory is issued, and affected waters are retested until …

Modeling Accreditation Standards And Evaluation Methods To Inform Strategic Planning In Public Health Education, Debra Rich

College of Graduate Studies: Theses & Dissertations

Public health has long benefited from the relationship between postsecondary education, accreditation, and government employment. Assessment and accreditation are important tools in postsecondary education to ensure fiscal responsibility, professional competencies, and quality assurance. The competency standards implemented in post-secondary education are not under the direct control of the federal government; however, policy amendments aimed at specific accreditation criteria could result in changes to public health curriculum and create eligibility barriers for students who rely on federal financial support. The Central Washington University Public Health program has provided educational support in professional public health for decades, and there is an increased …

From Vision To Impact: Strategic Planning For The South Health District, Jason D. Butler Jr

College of Graduate Studies: Theses & Dissertations

This study presents a community health assessment and strategic planning process for the South Health District (SHD), a rural, multi-county public health district.  Using a mixed-methods approach, quantitative surveys and qualitative data from County Nurse Managers, County Boards of Health, and internal staff were integrated with secondary sources to identify community health priorities and organizational gaps.  Broad stakeholder engagement through surveys, SWOT workshops, and town-hall meetings ensured credibility and contextual relevance.

Findings revealed challenges in behavioral health, substance abuse, chronic disease, access to preventive services, transportation, workforce capacity, communication, and infrastructure.  Four strategic issues—Communication, Workforce Development and Retention, Purpose-Driven District, …

Food Access Disparities In Fulton County, Georgia: Examining Structural Barriers And Community-Level Determinants, Paige J. Perry

College of Graduate Studies: Theses & Dissertations

Food insecurity remains a significant public health issue affecting communities at global, national, and local levels, including Atlanta, GA. Despite being an affluent and rapidly growing urban area, disparities in food access persist across Fulton County. This study examines the structural, demographic, and socioeconomic factors associated with food access at the census tract level. Using quantitative analysis, the study evaluates how geographic location, population characteristics, transportation access, and economic conditions influence the likelihood of low food access. Findings highlight significant disparities linked to transportation availability, demographic composition, and geographic variation within the county. These results underscore the importance of addressing …

Sexual Dimorphism In The Immune Defense Mechanisms Against A Systemic Bacterial Infection In The Cat Flea (Ctenocephalides Felis), Ashley Lynch

College of Graduate Studies: Theses & Dissertations

Fleas defend against infection through the activation of both humoral and cellular innate immune responses. Previous research in female cat fleas demonstrated increased immune activity following a systemic bacterial infection. However, comparable data for males and sex-based comparisons are limited. In this study, we investigated differences in innate cellular immune responses between male and female cat fleas following systemic infection with Gram-negative Escherichia coli. Bacterial load was quantified using colony-forming units 24 h post-infection. Immune function was assessed via phagocytic index and capacity. Survival and total circulating hemocyte counts were evaluated across infected, sterile-injected, and untreated groups. Male fleas …

Vibrio In Oysters: Exploring The Impact Of Harvesting Practices, Samin Yasar

College of Graduate Studies: Theses & Dissertations

The rapid growth of oyster aquaculture in the Southeastern United States necessitates the validation of post-harvest processing strategies to mitigate the risk of Vibrio spp. infection. This study investigated the efficiency of three cooling methods - Direct Ice Burial, Indirect Ice Cooling, and Ambient Control, on the prevalence and abundance of V. cholerae, V. parahaemolyticus, and V. vulnificus in cultured oysters (Crassostrea virginica) harvested in Georgia. Additionally, the study examined the safety of two different re-submersion periods for oyster safety.

Internal temperature profiles confirmed that while Direct Ice Burial achieved the most rapid cooling (< 10° C in 7.3 ± 1.2 min), the Indirect Ice Cooling protocol successfully reached the safety threshold in 73.7 ± 17.2 min, well within the 2-hour regulatory window. Microbiological analysis (N = 270) revealed that V. …