some amide derivatives have been synthesized by the reaction of corresponding nitriles with potassium tert-butoxide as a nucleophilic oxygen source under ultrasonic irradiation. this new methodology provides good to excellent yields in short reaction times (15-90 min) at room temperature.

this study was initiated to assess the effectiveness of designating smoking rooms to control environmental tobacco smoke in nursing homes. of the 39 nursing homes located in toledo (a city in ohio, usa) included in the preliminary survey, 33 facilities (85%) allowed smoking, 14 facilities (36%) allowed indoor smoking, and 13 facilities (33%) provided a designated smoking area. three of these 13...

objective: to determine the epidemiology and pattern of emergency operating room workload in nemazee hospital affiliated with shiraz university of medical sciences, shiraz, iran. methods: all surgical emergency operations which were performed in nemazee hospital, shiraz, iran were collected over twelve months (september 2007 to september 2008). the data obtained included indications, presenting...

background and objectives: operating room (or) scheduling is key to optimal operating room productivity. the significant uncertainty associated with surgery duration renders scheduling of surgical operation a challenging task. this paper proposes a novel computational stochastic model to optimize scheduling of surgeries with uncertain durations. the model considers various surgical operation co...

pullback test has no scrupulous theoretical establishment. it is based on the hypothesis that the response ofthe structure can be related to the response of an equivalent single degree-of-freedom (sdof) system. this implies thatthe response is controlled by a single mode. in fact, the steel frame of each safe room, which is introduced within theunreinforced masonry buildings for protecting the ...

introduction: the research results showed that there was a relatively large gap in training operating room skills and clinical practice, so that clinical training did not enable students to perform the required tasks. one of the new approaches in training is a mentoring program. the aim of this study was to review mentoring of operating room students. methods: this study was a systematic review...