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Comparing Student Satisfaction in High- and Low-Fidelity Simulation Experiences
Get PDFThe purpose of this project was to compare student satisfaction in high- and low-fidelity simulation experiences. The project took place at the Pittsburg State University Irene Ransom Bradley School of Nursing. Participants included 79 pre-licensure Fundamentals of Nursing students in their first semester of nursing school. Implementation took place in the Fall of 2022. Students underwent either a high- or low-fidelity patient simulation experience related to pneumonia. Upon completion of the scenario students were asked to voluntarily participate in a satisfaction questionnaire. The questionnaire was composed of 27 closed-ended questions. There was a statistically significant difference with higher satisfaction scores with the low-fidelity simulation compared to the high-fidelity
The Family History of Josiah Noga
Get PDFJosiah Elijah Noga authored this family history as part of the course requirements for HIST 550/700 Your Family in History offered online in Fall 2023 and was submitted to the Pittsburg State University Digital Commons. Please contact the author directly with any questions or comments: [email protected]
OPTIMIZATION OF TRANSITION-METAL INCLUSIVE CARBON AEROGELS FOR ELECTROCHEMICAL ENERGY APPLICATIONS
Get PDFThe ever-growing need for energy alongside rising concerns for climate change demands the development of renewable energy technologies. Hydrogen fuel cells are a promising technology that can serve to either supplement energy generation or act as a lone power source. Yet for these devices to be truly green, the hydrogen that serves as fuel must be procured from a renewable resource. Electrolytic water splitting is a process that allows for the dissociation of water into H2 and O2. For this process to be practical, the electrolyzer needs to demonstrate high efficiency and stability, as well as a low overhead cost. Towards this end, transition-metal-based electrocatalysts demonstrate the desired properties.
In this study, transition-metal inclusive carbon aerogels (RF-CTm) were initially synthesized by adding nickel acetate (RF-CNi), cobalt acetate (RF-CCo), or a 1:1 weight ratio of both (RF-CCoNi) to a resorcinol-formaldehyde (RF) hydrogel synthesis. The resulting hydrogels were then lyophilized to create their respective aerogels, followed by a calcination process to carbonize them. After synthesis, the various samples were employed towards electrode construction for use as bifunctional electrocatalysts. Furthermore, the initial success of RF-CCoNi encouraged the creation of more samples, which modified the wt.% of the 1:1 metal mixture added to the hydrogel synthesis.
Initial electrochemical testing demonstrated that the materials possessed a high affinity for the oxygen evolution reaction, with RF-C, RF-CCo, RF-CNi, and RF-CCoNi producing low overpotentials of 320, 360, 330, and 310 mV respectively. Additionally, these materials processed the reaction at a high rate, with corresponding Tafel slopes being 79, 65, 65, and 47 mV/dec. Meanwhile, the material provided solid results for the hydrogen evolution reaction, demonstrating overpotentials of 236, 207, 202, and 141 mV alongside Tafel slopes of 203, 168, 142, and 131 mV/dec. Considering the promising results of RF-CCoNi, further testing explored the adjustment of overall metal content added to the aerogel. The resulting samples, delineated as RF-CCoNi 25%, RF-CCoNi 50%, RF-CCoNi 75%, and RF-CCoNi 150% demonstrated oxygen evolution and hydrogen evolution overpotentials of 310, 370, 360, 360, and 188, 134, 158, 340 mV each. The results from these experiments advocate that RF-CCoNi aerogels possess desirable properties as a bifunctional electrocatalyst for water electrolysis
The Family History of Jeff Clark 29 January 2023
Get PDFThe Family History of Jeff Clark 29 January 202