Producion of efficient antimicrobial drugs against to common human pathogens is one of the most important challenges in the field of medical microbiology. Continuous screening of clinical isolates and survey of antimicrobial resistance pattern is critical.Today, disk diffusion and dilution methods are known as the common antimicrobial susceptibility testing methods. Disk diffusion method does not render dependable results in determination of antimicrobial susceptibility pattern because this method is semi quantitative. MIC determination by microdilution and macrodilution techniques and recent method “E-test”, have given interpretable results to researchers. Microdilution and macrodilution methods are also time consuming, expensive and error- prone methods. Whereas E-test method is one of the means by which we will be able to determine susceptibility pattern of known species in low cost and short time. In this survey, constructing and printing of E-test, coating of antibiotic on O.H.P film and quality control of constructed E-tests were performed according to M7 A7 CLSI Standard. In this study quality of required materials for E-test Production were suitable. Evaluation of constructed strips was performed using standard strain of staphylococcus aureus and reproducibly of results was appreciated.

Contact dermatitis is an inflammatory skin disease due to contact with different substances and caused by two mechanisms: allergy and irritation. Contact dermatitis is a common skin disease and the most common occupational dermatosis. Differentiating between allergic and irritant contact dermatitis is essential in the identification of etiologic factor(s) and hence, its control and prognosis. This differentiation can be done only by patch test. Unfortunately, this simple, safe and useful test is always neglected. We review the basics of patch test, the method of performance, reading and interpretation of its results, possible side effects and results of studies done with patch test in different countries.

The present study investigated varieties of C-test as measures of General Language proficiency (GLP). C-test was first introduced into language testing as a modification of close procedure. The original C-test was developed by mutilating the second half of every other word, beginning from word two ID sentence two of [l passage. Through various studies, C-test proved an integrative and a highly reliable and valid measure of (GLP. The present study was also aimed at further confirming those findings by investigating not only the original C-test but other varietis of C-test. To this end ten C-test versions were developed, by applying different deletion techniques and deletion rates, and were administered among nearly 500 senior EFL students, in the way that each form was given to almost 50 subjects. All the subjects had already taken a TOEFL. and a close test prior to the administration of the C-tests. The results of data analyses showed that C:-test may measure different things one of which might be general language proficiency and as such, not all varieties of C-test measure this construct to the same extent.

Competition law is a newcomer to the legal system recently. A sound understanding of competition policy can provide us with sufficient bases to apply a fundamental and normative view of the issues of competition law. The difference in supervision and regulation determines how the market functions and in order to understand this difference one must understand competition policy. Competition policy may be based on governmental support for national production and industry or on a non-interventional and regulatory posture. Moreover, supervision, based on the principle of non-intervention in the market mechanism, is rooted in liberal ideas; however, regulation, whether as a rule or an exception, is based on the assertion that the market has been ineffective in attaining its goals. Therefore, the government will resort to interventions to regulate inefficiencies.  This paper aims to analyze Supervisory Authority in Implementing Competitive Policy by employing the description method. In this article the author tries to first delineate competition policy, its related requirements and imposed deviations to the market. Then, by defining the supervisory entity and clarifying its distinction from the regulatory institutions, the author considers the characteristics of an appropriate supervisory entity conducting a comparative study of this issue in Iran and the U.S.A. This form of Competition policy because of its applicable experiences which have been well described by recent scholarship is considered suitable for the native system.

There is no agreement among different economic schools about role of monetary policy in stabilization policy. New classic by means of rational expectations show that only unanticipated monetary policy influences upon real variables. However New keynsian by means of rational expectations shows that anticipated monetary policy influences real ariables too. The present article investigates above subject by using Mishkin method.We have used seasonally data on M2 as a monetary aggregate and real GDP excluding oil revenue variables for the period (1367:1-1386:4). Furthermore effect of structural breaks and length of lag have been taken under consideration. Findings show that structural break and length of lag will influence on the results of test. With structural breaks, macro rational Expectations (MRE) in three lag is rejected and in eleven and sixteen lag are confirmed, and also unanticipated money in three lag doesn't influence on the differences of real GDP excluding oil revenue and in seven, eleven and sixteen lag it was effective. While ignoring structural breaks, results are completely reversed.

Background: Streptococcal pharyngitis is the most common type of acute bacterial pharyngitis that may have different complications if remained untreated. On the other hand, antibiotics may impose side effects if prescribed for healthy subjects, thus, the appropriate diagnosis of affected individuals is of utmost importance. Previous studies have indicated the accuracy of Rapid test for streptococcal pharyngitis, so the present study was conducted to determine the accuracy of Rapid test among a group of Iranians.Materials and methods: For this clinical trail, 320 consecutive cases of sore throat were enrolled. Rapid test was performed for all cases; however, culture was our gold standard for diagnosis. Finally, positive predictive value and negative predictive value were calculated.Results: The study population included 150 males and 170 females with the mean age of 21 ± 7 years. The positive and negative predictive values of Rapid test were 66% and 98.5%, respectively.Conclusion: With respect to the known complications of acute pharyngitis, we strongly recommend Rapis test for all patients with sore throat.