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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Advances in Medical Education and Professionalism
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی: Introduction: Objective Structured Clinical Examination (OSCE) is one of the most appropriate methods for assessment of clinical skills.Validity and reliability assurance is a mandatory factor for any assessment tool. In Shiraz University of Medical Sciences, medical students’ clinical competences are evaluated by a pre-internship OSCE. This study is designed to examine the validity and reliability of this exam. Validity is the extent to which the test measures what it intends to measure. Reliability refers to the accuracy of measurement and the consistency of test results. Methods: Content validity was evaluated by expert opinion about blueprinting and station checklists. To determine the construct validity, station scores correlation with the total OSCE score and inter station correlations were calculated. The inter examiner reliability was assessed by coefficient of correlation. Results: Content validity was established by alignment between the curriculum and the blueprint using expert opinion. Correlation of the station scores with the total OSCE score were positive and statistically significant in all stations except the 16th station (suturing). Inter examiner reliability coefficients of correlations ranged 0.33 – 0.99, with an average of 0.83. Conclusions: Our findings support the assumption that the pre-internship OSCE is valid, reliable and suitable to assess students’ clinical competence. Validity and reliability studies should be performed for all new assessment tools, particularly in high-stakes assessments.Keywords:OSCE, Assessment, Validity, Reliability
- انتشار مقاله: 10-06-1392
- نویسندگان: NARGES VASEGHI,MAHVASH ALIZADEH NAINI,REZA LABAF GHASEMI,SOHEILA AMIRI
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Molecular and Clinical Microbiology
- نوع مقاله: Journal Article
- کلمات کلیدی: Detoxification,Mycotoxin,Penicillium,Citrinin,Cold Atmospheric Pressure Plasma
- چکیده:
- چکیده انگلیسی: Mycotoxins such as Citrinin are small toxic molecules produced by a great variety of microorganism, which encompass several classes of secondary metabolites with no common chemical structure or mode of action. Citrinin produces by different species of Penicillium. Today, the cold atmospheric pressure plasma (CAPP) method has a potential for mycotoxin detoxification. In this study, a new and promising approach involving the use of cold atmospheric pressure plasma is considered, which may overcome multiple weaknesses associated with the classical methods.
In this study, samples included wheat, corn; rice and Barley were obtained from northern parts of Iran (Lahijan). Initially, the output of the power supply was set to 50 kV, 100 watts, and the electron frequency of 30 kHz (optimal conditions to effective plasma). Then, the effect of cold atmospheric jet plasma (argon) on gas was investigated in 30, 60 and 360 seconds (gas flow rate of 6 liters per minute).
The results showed us that the cold atmospheric pressure plasma method effectively production pure mycotoxins. The rate of various mycotoxins destruction varies according to their structure. It was also shown in the study that the combination of mycotoxins in foods would reduce the plasma's effect, but not prevent them from degrading. Finally, in this study, descendants in all samples were performed successfully.
The atmospheric pressure plasma method has a natural biodegradation effect and has the least negative effect on food products in comparison with conventional methods of disinfection of food products in addition to the detoxification characteristics.- انتشار مقاله: 24-06-1396
- نویسندگان: Narges Vaseghi,Mansour Bayat,Arash Chaichi Nosrati,Mahmood Ghorannevis,Jamal Hashemi
- مشاهده