The ScholarShip

The ScholarShip is a digital archive for the scholarly output of the ECU community. Its mission is to capture, preserve, and make available the intellectual output of East Carolina University's faculty, staff, and students.

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Now showing 1 - 8 of 8

Recent Submissions

Access status: Restricted ,
SULFIDING CORROSION OF COPPER-NICKEL ALLOY IN SYNTHETIC SEAWATER
(1992-01) Amos, Adrianne L.
90% Cu and 10% Ni wafers were corroded abiotically in synthetic seawater solutions containing various concentrations of H+, dissolved O2, and dissolved sulfide. The samples were not disturbed during the corrosion process by stirring or monitoring of the solution chemistry. The Eh, pH and the concentrations of dissolved O2, and sulfide in the initial and final solutions were measured. Upon removal, the corroded wafers were analyzed by SEM, EDX, XPS and electron microprobe. These analyses revealed the presence of chalcocite, paratacamite, cuprite, aragonite, and possibly djurleite and digenite on the surfaces of the wafers. Adherence of the corrosion films varied with solution chemistry from those that were non-adherent to those showing good adherence. Significant movement of Ni from the wafer was observed. The data suggests a model for an abiotic corrosion process that involves rapid scavenging of dissolved sulfide by copper to form an amorphous or crypto-crystalline Cu-S phase which later recrystallizes into large, well-formed Cu-S minerals. The Cu-S minerals initially formed under reducing conditions persisted even after the solutions became quite oxidizing.
Access status: Open Access ,
Assessing CRNA Perceptions of a Cognitive Aid Focused on Aspiration Pneumonitis: A DNP Project
(2025-11-22) Eric LaRoque
Perioperative aspiration pneumonitis is an uncommon yet potentially devastating complication of anesthesia associated with significant morbidity and mortality. This Doctor of Nursing Practice (DNP) quality improvement project evaluated Certified Registered Nurse Anesthetists’ (CRNAs) perceptions of a newly developed quick reference guide (QRG) designed to support the identification of at-risk patients and provide evidence-based prevention and management strategies. Guided by the plan-do-study-act (PDSA) framework, the project was implemented in a Level 1 trauma center and assessed through pre- and post-implementation surveys. Findings indicated improved alignment with current practice recommendations, increased confidence in recognizing aspiration risk factors, and positive perceptions of the QRG’s accessibility and utility. Despite limited participation, results suggest that integrating a QRG into anesthesia practice at this facility may enhance provider preparedness, improve patient outcomes, and reduce perioperative complications. Future research with larger samples and extended timelines is recommended to strengthen these findings.
Access status: Open Access ,
Certified Registered Nurse Anesthetist Perception of the Usefulness of a Standardized Reference Guide for the Management of Amniotic Fluid Embolism: A DNP Quality Improvement Project
(2025-11-30) Compliment, Charles Blake
AFE is a life-threatening complication of pregnancy with a high mortality rate that currently has no standardized or nationally agreed-upon protocols for treatment based on current best practices. Reference guides or cognitive aids are used in a wide array of emergencies. They can play an important role in helping the provider with a step-by-step approach to managing emergencies, such as amniotic fluid embolism. Evidence shows that a team-based approach to emergencies improved with the use of a(CA) or reference guide, and the rate of errors during emergencies was reduced by 50%. The purpose of this Doctor of Nursing Practice quality improvement project was to evaluate the perception of usefulness of a new reference guide among CRNA participants for improving the management of amniotic fluid embolism via an in-person presentation. This quality improvement project occurred at a small outlying facility in eastern North Carolina with all participants in attendance at the presentation. Data was collected via pre- and post-implementation surveys using Qualtrics and analyzed using Microsoft Excel. The results showed an overall acceptance of the reference guide, a plan to implement the reference guide into their management of amniotic fluid embolism, and an increase in confidence when managing an amniotic fluid embolism event. Limitations to this project included the small number of participants available for implementation in a single facility. Future projects expanding on the work of this DNP project could include a simulation scenario allowing participants to practice using the reference tool in an amniotic fluid embolism event.
Assessing Certified Registered Nurse Anesthetists' Perception of the Usefulness of a Reference Guide in Managing Amniotic Fluid Embolism: A DNP Project
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