among the various methods of clinical teaching, rounds and grand rounds are considered as the gold standards. clinical round includes some standard components and it plays an effective role in student's learning process. the aim of this study was to evaluate the content of teaching rounds in 40 clinical wards in 4 medical teaching hospitals affiliated to tehran university of medical sciences in...

â â â  â â  â  abstract â  this paper examines the two most important current efforts to devise new rules binding all nations the negotiations in the wto of trade rules and the negotiations under the un framework convention on climate change to devise rules restricting the annual emissions of greenhouse gases. both negotiations have failed after several years of intensive effort. there are rema...

introduction:  clinical settings and teaching methods play a key role in students' learning. so, the present study aimed to investigates the effect of holding special training rounds on performance of pediatric residents. methods: this quasi-experimental study was conducted on 30 residents. they were randomly divided into two case (n=15) and control (n=15) groups. two groups received prete...

Soon after the discovery of x-rays by Roentgen, radioactivity by Becquerel, and radium by the Curies, it was concluded that x-rays could not only be used for diagnostic purposes but also for therapy [1,2]. In the early years of radiation therapy, physicians had little understanding or knowledge of the physical nature and biological effects of radiation, the delivered doses were not certain, the...

in descriptive statistics, there are two computational algorithms for determining the variance s2, of a set of observations : algorithm 1: s2= - , algorithm 2: s2= , where . it is interesting to discuss, which of the above formulas is numerically more trustworthy in machine numbers sets. i this paper, based on total effect of rounding error, we prove that the second algorithm is better than ...