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Creating and validating e-cases as educational tools in general practitioners’ continuing medical education context

Hadadgar A., Changiz T., Kononowicz A. A., Safaeian L., Mirshahzadeh N., Najimi A., Ahmadi F., Mostafavizadeh K., Zary N., Masiello I.

Bio-Algorithms and Med-Systems

2018

Vol. 14, no. 1

art. no. 20170027

Objective: This study aimed at creating electronic cases (e-cases) and analyzing their validity as a diagnostic assessment tool within the context of continuing medical education (CME) to measure general practitioners’ (GPs) knowledge of common infectious disease. Methods: We designed assessment e-cases in an electronic CME platform. The e-cases were designed to measure GPs’ knowledge about diagnosis and treatment of common infectious disease in outpatient settings. The data collected were analyzed for five forms of evidence: content, response process, internal structure, relations with other variables and consequences. Results: A total of 46 GPs participated in the study. Among them, 87% perceived the e-cases as resembling the patients whom they visit in their everyday practice. Although attendance in this activity made 85% of the participants more cautious about prescription of antibiotics, we could not detect any statistically significant association between the assessment scores and the physicians’ previous antibiotic prescription. The diagnostic assessment with e-cases was supported by most of the elements of validity evidence, including content, response process, internal structure and consequences. Conclusions: Overall, evidence suggests that using e-cases might be a valid diagnostic assessment CME activity to measure GPs’ knowledge of common infectious disease, but more research is necessary.

Mechanical Coupled BLDC Motors for Energy Saving in Submarine Application

Isfahani A. H., Ahmadi F.

Przegląd Elektrotechniczny

2011

R. 87, nr 9a

316-320

Energy saving is an important issue in mobile applications where portable energy resources are limited. This paper proposed a configuration consists of a coupled set of two brushless permanent magnet motors instead of conventional single motor configuration to increase the efficiency in a wide range of motor operation points. Proposed system includes two brushless DC permanent magnet motors with ratings equal to one third and two third of the original single motor rate. A proper control system is then designed for appropriate usage of these motors in different operation speeds. Simulation results demonstrate an efficiency improvement in a wide range of speed control.

W artykule zaproponowano dwa sprzężone bezszczotkowe silniki zamiast konwencjonalnego pojedynczego silnika dla zwiększenia efektywności układu napędowego w zastosowaniu do łodzi podwodnych.