The Impact of Hazard Statement Design Elements in Procedures: Counterintuitive Findings and Implications for Standards

2021 ◽  
pp. 001872082110501
Author(s):  
Joseph W. Hendricks ◽  
S. Camille Peres ◽  
Stefan V. Dumlao ◽  
Cara A. Armstrong ◽  
Timothy J. Neville
Keyword(s):  
Experimental Studies ◽  
Design Guidelines ◽  
Consumer Products ◽  
High Fidelity ◽  
High Fidelity Simulation ◽  
Consistent Finding ◽  
Design Elements ◽  
Standard Operating ◽  
The Impact ◽  
Positive Effect

Objective The objective of these studies was to identify hazard statement (HS) design elements in procedures that affected whether both workers and lab participants performed the associated hazard mitigation. Background Many of the incidents in high-risk industries are the result of issues with procedures (e.g., standard operating procedures; SOPs) workers use to support their performance. HSs in these procedures are meant to communicate potential work hazards and methods of mitigating those hazards. However, there is little empirical research regarding whether current hazard design guidelines for consumer products translate to procedures. Method Two experimental studies—(1) a laboratory study and (2) a high-fidelity simulation—manipulated the HS design elements present in procedures participants used while performing tasks. Participants’ adherence to the mitigation of the hazard was compared for the HS designs. Results The guidelines for HSs from consumer products did not translate to procedures. Specifically, the presence of an alert icon, a box around the statement, and highlighting the statement did not improve adherence to HSs. Indeed, the only consistent finding was for the Icon, with its presence reliably predicting nonadherence in both studies. Additionally, the total number of design elements did not have a positive effect on adherence. Conclusion These findings indicate that more fundamental procedure HSs research is needed to identify effective designs as well as to understand the potential attentional mechanisms associated with these findings. Application The findings from these studies indicate that current regulations and guidelines should be revisited regarding hazard presentation in procedures.

Study of the Impact of Protective Process Agents with Carbon Nanopowder Additives on Chip Forming Processes

2021 ◽  
Vol 887 ◽  
pp. 319-324
Author(s):  
E.A. Petrovsky ◽  
K.A. Bashmur ◽  
Vadim S. Tynchenko
Keyword(s):  
Experimental Studies ◽  
Cutting Speed ◽  
Optimal Composition ◽  
Cooling Process ◽  
Shrinkage Ratio ◽  
Nickel Chromium ◽  
Chromium Alloys ◽  
On Chip ◽  
The Impact ◽  
Positive Effect

The present study describes the impact of various protective process agents on chip forming processes. The research was conducted on NiCr20TiAl and 34NiCrMoV14-5 nickel-chromium alloys. New lubricant-cooling process agents with carbon nanopowder additives are studied. The optimal composition of the nanopowder additive and its effect during alloy cutting is examined. Experiments reveal the dependence of shrinkage ratio on cutting speed and various protective process agents. The values of H50 microhardness are also defined when cutting these alloys using protective process agents. Experimental studies found the positive effect of developed agents with nanopowder additives on the processes of NiCr20TiAl and 34NiCrMoV14-5 alloys chip formation.

Effect of In Situ High-Fidelity Simulation Training on the Emergency management of Pneumonia (INSTEP): a mixed-methods study

2018 ◽  
Vol 4 (4) ◽  
pp. 190-195 ◽  
Author(s):  
Owain Michael Leng ◽  
Charlotte Rothwell ◽  
Annamarie Buckton ◽  
Catherine Elmer ◽  
Jan Illing ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Patient Outcomes ◽  
High Fidelity ◽  
High Fidelity Simulation ◽  
Simulation Education ◽  
Audit Data ◽  
Semistructured Interviews ◽  
The Impact

BackgroundThe patient safety agenda has propelled the rise of simulation education, but relatively few evaluations of simulation-based educational interventions have focused on patient outcomes.ObjectiveTo evaluate the impact of an in situ, high-fidelity simulation teaching intervention on the management of community-acquired pneumonia in the ambulatory care unit of a district general hospital.MethodsThis study used a mixed-methods approach to evaluate the impact of a programme of 10 in situ high-fidelity simulation education sessions delivered to a total of 10 junior doctors, nine nurses and seven healthcare assistants. Participants were tasked with managing a manikin simulating a patient with pneumonia in real time in a working clinical area. Subsequent structured debrief emphasised key themes from the national guidelines on pneumonia management. The intervention was evaluated through an immediate feedback form, follow-up semistructured interviews by independent qualitative researchers that underwent content analysis and triangulation with audit data on compliance with national pneumonia guidelines before and after the simulation intervention.ResultsThe in situ simulation intervention was valued by participants both in immediate written feedback and in follow-up semistructured interviews. In these interviews, 17 of 18 participants were able to identify a self-reported change in practice following the simulation intervention. Furthermore, most participants reported observing a change in the clinical practice of their colleagues following the training. Collected audit data did not show a statistically significant change in compliance with the guidelines for the management of pneumonia.ConclusionThis study found evidence of a change in both self-reported and observed clinical practice following a simulation intervention, supporting expert opinion that simulation education can impact clinician behaviours and patient outcomes in complex clinical scenarios. Furthermore, this feasibility study provides a transferrable method to evaluate the real-world impact of simulation education that merits further investigation through an appropriately powered study.

Validity of a questionnaire developed to measure the impact of a high‐fidelity simulation intervention: A feasibility study

2019 ◽  
Vol 75 (11) ◽  
pp. 2673-2682
Author(s):  
Kristine Haddeland ◽  
Åshild Slettebø ◽  
Elisabeth Svensson ◽  
Patricia Carstens ◽  
Mariann Fossum
Keyword(s):  
Feasibility Study ◽  
High Fidelity ◽  
High Fidelity Simulation ◽  
The Impact

scholarly journals Diagnostic accuracy of GPs when using an early-intervention decision support system: a high-fidelity simulation

2017 ◽  
Vol 67 (656) ◽  
pp. e201-e208 ◽  
Author(s):  
Olga Kostopoulou ◽  
Talya Porat ◽  
Derek Corrigan ◽  
Samhar Mahmoud ◽  
Brendan C Delaney
Keyword(s):  
Patient Satisfaction ◽  
Decision Support ◽  
Decision Support System ◽  
Diagnostic Accuracy ◽  
Support System ◽  
Experimental Studies ◽  
Patient Specific ◽  
High Fidelity ◽  
High Fidelity Simulation ◽  
Data Coding

BackgroundObservational and experimental studies of the diagnostic task have demonstrated the importance of the first hypotheses that come to mind for accurate diagnosis. A prototype decision support system (DSS) designed to support GPs’ first impressions has been integrated with a commercial electronic health record (EHR) system.AimTo evaluate the prototype DSS in a high-fidelity simulation.Design and settingWithin-participant design: 34 GPs consulted with six standardised patients (actors) using their usual EHR. On a different day, GPs used the EHR with the integrated DSS to consult with six other patients, matched for difficulty and counterbalanced.MethodEntering the reason for encounter triggered the DSS, which provided a patient-specific list of potential diagnoses, and supported coding of symptoms during the consultation. At each consultation, GPs recorded their diagnosis and management. At the end, they completed a usability questionnaire. The actors completed a satisfaction questionnaire after each consultation.ResultsThere was an 8–9% absolute improvement in diagnostic accuracy when the DSS was used. This improvement was significant (odds ratio [OR] 1.41, 95% confidence interval [CI] = 1.13 to 1.77, P<0.01). There was no associated increase of investigations ordered or consultation length. GPs coded significantly more data when using the DSS (mean 12.35 with the DSS versus 1.64 without), and were generally satisfied with its usability. Patient satisfaction ratings were the same for consultations with and without the DSS.ConclusionThe DSS prototype was successfully employed in simulated consultations of high fidelity, with no measurable influences on patient satisfaction. The substantially increased data coding can operate as motivation for future DSS adoption.

scholarly journals The Impact of Stratified Teaching on the Academic Performance of Chinese Middle School Students: A Meta-Analysis

2020 ◽  
Vol 7 (1) ◽  
pp. 735-760
Author(s):  
Hui Shi ◽  
Alan C.K. Cheung ◽  
Elizabeth S.T. Cheung
Keyword(s):  
Information Technology ◽  
Academic Performance ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Chinese Students ◽  
Learning System ◽  
School Students ◽  
Quasi Experimental ◽  
The Impact ◽  
Positive Effect

Stratified teaching is an effective method and means to implement teaching students per their aptitude. Domestic and foreign scholars have carried out many experimental and quasi-experimental studies to observe the impact of stratified teaching on students’ academic performance, but the results are quite different. So, can stratified teaching effectively help Chinese students improve their academic performance? How big is its impact? Which model is more suitable for Chinese students? To answer these questions, this article uses meta-analysis to quantitatively analyze 22 Chinese studies on the impact of Stratified teaching on student academic performance. We found that (i) stratified teaching has a positive effect on students’ academic performance, and the overall combined effect size is 0.53; (ii) among the seven subjects of mathematics, English, physics, chemistry, biology, geography, and information technology, stratified teaching has had a positive effect on their learning. Stratified teaching’s order of effect on different subjects was English > Physics > Geography > Information Technology > Mathematics > Biology > Chemistry; (iii) stratified teaching is suitable for students of different sizes of classrooms. However, the smaller the number of students in the classroom, the better the learning effect, and (iv) stratified teaching is more suitable for improving their learning in the mobile learning system.

Repetitive simulation is an effective instructional design within a pediatric resident simulation curriculum

2018 ◽  
Vol 4 (4) ◽  
pp. 179-183
Author(s):  
Selin Tuysuzoglu Sagalowsky ◽  
Kimball A Prentiss ◽  
Robert J Vinci
Keyword(s):  
Instructional Design ◽  
Intraclass Correlation ◽  
High Fidelity ◽  
High Fidelity Simulation ◽  
Pediatric Resident ◽  
Short Term ◽  
Simulation Scenario ◽  
And Performance ◽  
The Impact

IntroductionRepetitive paediatric simulation (scenario-debrief-scenario; RPS) is an instructional design that allows immediate application of learner-directed feedback, in contrast to standard simulation (scenario-debrief; STN). Our aim was to examine the impact of RPS embedded within a paediatric resident simulation curriculum, comparing it to STN.MethodsIn this prospective educational cohort study, paediatric residents were enrolled in STN (n=18) or RPS (n=15) groups from August 2012 through June 2013. Each group performed an initial high-fidelity simulation and another after 1–2 weeks. Attitudes, confidence and knowledge were assessed using anonymous surveys with each scenario and at 4–6 months. Skills were assessed in real time with a modified Tool for Resuscitation Assessment Using Computerised Simulation (TRACS). Two blinded reviewers assessed a subset of videotaped scenarios for TRACS inter-rater reliability.ResultsBoth STN and RPS designs were rated highly. The curriculum led to significant short-term and long-term improvements in confidence, knowledge and performance, with no significant differences between groups. All final respondents reported that they would prefer RPS to STN (n=6 STN, 4 RPS). TRACS intraclass correlation was 0.87 among all reviewers.ConclusionsPaediatric residents reported preference for RPS over STN, with comparable impacts on confidence, knowledge and performance. The modified TRACS was a reliable tool to assess individual resident performance. Further research is needed to determine whether RPS is a more effective instructional design for teaching resuscitation skills to paediatric residents.

scholarly journals Seismic Qualification of Electrical Cabinet Using High-Fidelity Simulation under High Frequency Earthquakes

2020 ◽  
Vol 12 (19) ◽  
pp. 8048
Author(s):  
Hoyoung Son ◽  
Seonggwan Park ◽  
Bub-Gyu Jeon ◽  
Woo-Young Jung ◽  
Jongwoong Choi ◽  
...  
Keyword(s):  
Seismic Response ◽  
High Frequency ◽  
Power Plants ◽  
Low Frequency ◽  
Experimental Tests ◽  
Design Guidelines ◽  
High Fidelity ◽  
High Fidelity Simulation ◽  
Nonstructural Components ◽  
Fundamental Frequencies

Most nuclear and nonnuclear power plants have been designed in the frequency range of 2 to 10 Hz, but now, the design guidelines for structural and nonstructural components such as electrical cabinets must be improved by including high frequency greater than 10 Hz for sustainable energy. The electrical cabinet is the essential piece of equipment for safety functions and the uncertainty of seismic capability in power plants. Consequently, the attention of this study focused on evaluating the seismic demands of the electrical cabinet under high frequency earthquakes and also, seismic qualification of the electrical cabinet using the identification of experimental tests and numerical models. An experimental test based on ICC-ES AC 156 and IEEE std.344 was conducted for seismic qualification of the cabinet and then, a high-fidelity finite element model to capture the significant deformation was developed in this study. It is observed that the fundamental frequencies were 16 and 24 Hz from the experimental tests, respectively. In order to verify the proposed high-fidelity simulation model, the target fundamental frequencies of the cabinet were evaluated in the ABAQUS platform. It was interesting to note that the reconciliation of experimental and analytical results was extremely identical. Furthermore, in order to evaluate seismic response characteristics of the cabinet subjected to high and low frequency earthquakes, time history analysis was conducted in this study, using the ABAQUS platform. As a result, the observation showed that the seismic response of the cabinet system under a high frequency earthquake was relatively higher than that of low frequency. It can be very important to note that the cabinet system was sensitive to high frequency vibration.

scholarly journals Experimental studies of the air flow power action on the elements of protective mats

2019 ◽  
Vol 97 ◽  
pp. 05007
Author(s):  
Maria Umahseva ◽  
Yuliya Bryanskaya ◽  
Pavel Bazhin
Keyword(s):  
Power Flow ◽  
Aerodynamic Resistance ◽  
Experimental Studies ◽  
Resistance Coefficient ◽  
Open Loop ◽  
State University ◽  
Subsonic Wind Tunnel ◽  
Flow Power ◽  
The Impact ◽  
Positive Effect

The results of experimental studies to determine the coefficients of aerodynamic resistance in the flow of flexible protective concrete mats located on a horizontal plane are presented. The characteristics of the impact of the power flow on the system of flexible protective mats of various modifications in the aerodynamic laboratory of Moscow State University of Civil Engineering are specified. The experiment was carried out on a subsonic wind tunnel with an open loop using a rigid six-axis force and moment sensor. According to the results of the experiment, it was concluded that the resistance coefficient for the modification of mats with rounding of the upper part of the elements decreases. It has a positive effect on the performance characteristics of this model and increases the lifespan of a structure protected by this modification of coatings.

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