Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 9 of 9

Full-Text Articles in Entire DC Network

A Coalescent Sampler Successfully Detects Biologically Meaningful Population Structure Overlooked By F‐Statistics, Eric Crandall, Robert J. Toonen, Kimberly Selkoe Oct 2018

A Coalescent Sampler Successfully Detects Biologically Meaningful Population Structure Overlooked By F‐Statistics, Eric Crandall, Robert J. Toonen, Kimberly Selkoe

Eric Crandall

Assessing the geographic structure of populations has relied heavily on Sewell Wright’s F‐statistics and their numerous analogues for many decades. However, it is well appreciated that, due to their nonlinear relationship with gene flow, F‐statistics frequently fail to reject the null model of panmixia in species with relatively high levels of gene flow and large population sizes. Coalescent genealogy samplers in-stead allow a model‐selection approach to the characterization of population struc-ture, thereby providing the opportunity for stronger inference. Here, we validate the use of coalescent samplers in a high gene flow context using simulations of a step-ping‐stone model. In an example case …


Evaluating The Use Of High-Fidelity Simulators During Mock Neonatal Resuscitation Scenarios In Trying To Improve Confidence In Residents, Deena Hossino, Christina Hensley, Karen Lewis, Marie Frazier, Renee Domanico, Melissa Burley, Jeffrey Harris, Bobby Miller, Susan L. Flesher Aug 2018

Evaluating The Use Of High-Fidelity Simulators During Mock Neonatal Resuscitation Scenarios In Trying To Improve Confidence In Residents, Deena Hossino, Christina Hensley, Karen Lewis, Marie Frazier, Renee Domanico, Melissa Burley, Jeffrey Harris, Bobby Miller, Susan L. Flesher

Bobby L. Miller

Objective: The purpose of this study was to investigate the effect of the use of high-fidelity simulators with multidisciplinary teaching on self-reported confidence in residents.

Methods: A total of 26 residents participated in a session led by a pediatric faculty member and a Neonatal Intensive Care Unit transport nurse using a high-fidelity pediatric simulator. Multiple scenarios were presented and each resident took turns in various roles. Pre-intervention surveys based on a 5-point Likert-type scale were given before the scenarios and were compared to the results of identical post-intervention surveys.

Results: Statistically significant (p < 0.05) pre to post gains for self-confidence were observed. Improvements in confidence were analyzed using the mean difference. The largest improvement in confidence was seen in the ability to treat neonatal respiratory arrest. This was followed by the ability to supervise/run a code, and the ability to place an umbilical venous catheter.

Conclusion: These results revealed that high-fidelity simulation-based …


Gnygrens18.Pdf, Garrett Nygren Aug 2018

Gnygrens18.Pdf, Garrett Nygren

Garrett Nygren

The finite element method was used to evaluate microstructural strengthening and toughening effects in nanoparticulate reinforced polymer composites (nanocomposites) and in short aligned discontinuous fiber reinforced polymer composites. Nanoparticulate reinforcement is a well-known method of polymer toughening which can greatly expand the range of engineering applications for polymers. However, the mechanisms of nanoparticulate toughening, as well as complementary sub-micron fracture processes, are not well understood. Short, aligned, discontinuous carbon fiber reinforced thermoplastics show promise as a versatile, inexpensive material system with favorable manufacturability, but failure of the associated morphologies is also not yet well explored.
In nanocomposites, two microstructural effects …


Evaluating The Use Of High-Fidelity Simulators During Mock Neonatal Resuscitation Scenarios In Trying To Improve Confidence In Residents, Deena Hossino, Christina Hensley, Karen Lewis, Marie Frazier, Renee Domanico, Melissa Burley, Jeffrey Harris, Bobby Miller, Susan L. Flesher Aug 2018

Evaluating The Use Of High-Fidelity Simulators During Mock Neonatal Resuscitation Scenarios In Trying To Improve Confidence In Residents, Deena Hossino, Christina Hensley, Karen Lewis, Marie Frazier, Renee Domanico, Melissa Burley, Jeffrey Harris, Bobby Miller, Susan L. Flesher

Jeffrey Harris

Objective: The purpose of this study was to investigate the effect of the use of high-fidelity simulators with multidisciplinary teaching on self-reported confidence in residents.

Methods: A total of 26 residents participated in a session led by a pediatric faculty member and a Neonatal Intensive Care Unit transport nurse using a high-fidelity pediatric simulator. Multiple scenarios were presented and each resident took turns in various roles. Pre-intervention surveys based on a 5-point Likert-type scale were given before the scenarios and were compared to the results of identical post-intervention surveys.

Results: Statistically significant (p < 0.05) pre to post gains for self-confidence were observed. Improvements in confidence were analyzed using the mean difference. The largest improvement in confidence was seen in the ability to treat neonatal respiratory arrest. This was followed by the ability to supervise/run a code, and the ability to place an umbilical venous catheter.

Conclusion: These results revealed that high-fidelity simulation-based …


Evaluating The Use Of High-Fidelity Simulators During Mock Neonatal Resuscitation Scenarios In Trying To Improve Confidence In Residents, Deena Hossino, Christina Hensley, Karen Lewis, Marie Frazier, Renee Domanico, Melissa Burley, Jeffrey Harris, Bobby Miller, Susan L. Flesher Aug 2018

Evaluating The Use Of High-Fidelity Simulators During Mock Neonatal Resuscitation Scenarios In Trying To Improve Confidence In Residents, Deena Hossino, Christina Hensley, Karen Lewis, Marie Frazier, Renee Domanico, Melissa Burley, Jeffrey Harris, Bobby Miller, Susan L. Flesher

Christina Hensley

Objective: The purpose of this study was to investigate the effect of the use of high-fidelity simulators with multidisciplinary teaching on self-reported confidence in residents.

Methods: A total of 26 residents participated in a session led by a pediatric faculty member and a Neonatal Intensive Care Unit transport nurse using a high-fidelity pediatric simulator. Multiple scenarios were presented and each resident took turns in various roles. Pre-intervention surveys based on a 5-point Likert-type scale were given before the scenarios and were compared to the results of identical post-intervention surveys.

Results: Statistically significant (p < 0.05) pre to post gains for self-confidence were observed. Improvements in confidence were analyzed using the mean difference. The largest improvement in confidence was seen in the ability to treat neonatal respiratory arrest. This was followed by the ability to supervise/run a code, and the ability to place an umbilical venous catheter.

Conclusion: These results revealed that high-fidelity simulation-based …


Evaluating The Use Of High-Fidelity Simulators During Mock Neonatal Resuscitation Scenarios In Trying To Improve Confidence In Residents, Deena Hossino, Christina Hensley, Karen Lewis, Marie Frazier, Renee Domanico, Melissa Burley, Jeffrey Harris, Bobby Miller, Susan L. Flesher Aug 2018

Evaluating The Use Of High-Fidelity Simulators During Mock Neonatal Resuscitation Scenarios In Trying To Improve Confidence In Residents, Deena Hossino, Christina Hensley, Karen Lewis, Marie Frazier, Renee Domanico, Melissa Burley, Jeffrey Harris, Bobby Miller, Susan L. Flesher

Marie D. Frazier

Objective: The purpose of this study was to investigate the effect of the use of high-fidelity simulators with multidisciplinary teaching on self-reported confidence in residents.

Methods: A total of 26 residents participated in a session led by a pediatric faculty member and a Neonatal Intensive Care Unit transport nurse using a high-fidelity pediatric simulator. Multiple scenarios were presented and each resident took turns in various roles. Pre-intervention surveys based on a 5-point Likert-type scale were given before the scenarios and were compared to the results of identical post-intervention surveys.

Results: Statistically significant (p < 0.05) pre to post gains for self-confidence were observed. Improvements in confidence were analyzed using the mean difference. The largest improvement in confidence was seen in the ability to treat neonatal respiratory arrest. This was followed by the ability to supervise/run a code, and the ability to place an umbilical venous catheter.

Conclusion: These results revealed that high-fidelity simulation-based …


Does Ecg And Arrhythmia Simulation Training In Adjunct To Didactics Improve Medical Students’ Clinical Skills Compared To Didactics Alone?, Reed Krause, Amy C. Hayton Md Jul 2018

Does Ecg And Arrhythmia Simulation Training In Adjunct To Didactics Improve Medical Students’ Clinical Skills Compared To Didactics Alone?, Reed Krause, Amy C. Hayton Md

Amy Hayton, MD

Medical Schools continue to face the challenge of bridging the gap between classroom education and its application in the clinical environment. Several studies have shown utility of incorporating simulation training into a variety of healthcare related topics. We hypothesize that incorporating ECG and arrhythmia simulation training in adjunction to ECG and arrhythmia didactics; it would improve Year-3 medical students’ preparedness for managing arrhythmias in the clinical setting.


The Open World Microorganism, Stephen Thompson Apr 2018

The Open World Microorganism, Stephen Thompson

Stephen Thompson

Video games have been creating sprawling open world experiences for years, but as of yet none have ventured to create an authentic inner cell experience, using our knowledge of cells to recreate digitally what it would be like to shrink smaller than one and step inside. The benefits this application could yield are manifold, so this paper references the necessary ingredients and draws up the blueprints for the first three-dimensional, fully explorable, customizable, and interactive microorganism: an invention which could usher in a new age of biological literacy using technology already employed by many video games. The first part of …


Understanding The Effect Of Extrusion Processing Parameters On Physical, Nutritional And Rheological Properties Of Soy White Flakes Based Aquafeed In A Single Screw Extruder, Sushil Kumar Singh Mar 2018

Understanding The Effect Of Extrusion Processing Parameters On Physical, Nutritional And Rheological Properties Of Soy White Flakes Based Aquafeed In A Single Screw Extruder, Sushil Kumar Singh

Sushil Singh

The rapid expansion of aquaculture has increased the demand for aquafeed. As fishmeal is expensive, alternative plant based protein sources such as soybean has shown to be a good alternative for aquafeed production. The present study was done to investigate the effect of soy white flakes (SWF) as an alternative source of protein in the production of aquaculture feed through extrusion processing. Ingredient blends containing different levels of SWF along with distiller dried grains, corn flour, corn gluten meal, fish meal, vitamin and mineral mix with net protein adjusted to 32% protein were formulated. The ingredient blends were extruded in …