In order to produce biodiesel from waste cooking oil and optimize its yield, a two-stage process of esterification/ transesterification has been used in this study. First, we used the acidic catalysts H2SO4 in order to diminish the content of free fatty acid (FFA) in oil that caused reducing the oil acidity from 6.1% to 0.57% through esterification. Then, the biodiesel was produced by transeste...

morganella morganii is rarely isolated from nosocomial infections. however, postoperative infections due to morganella spp. were documented in literature and eye involvements of the infections usually result in severe sequels.  we present a severe case infection, which was caused by m. morganii subsp . morganii, firstly appearing as conjunctivitis and complicated by bacteremia. the infectious a...

a few numbers of patients admitted to the emergency department due to the lunate dislocation can cause a direct injury to the wrist ligament, which mainly occurs after wrist trauma, and often diagnosis is far from the mind. a 32 years old man due to severe pain and tenderness of the wrist started the previous day during swimming, referred to emergency department of imam reza hospital of mashhad...

objective : priapism is defined by persistent, painful penile erection which occurs without sexual stimulation. methadone is used as an analgesic and is also used in detoxification and maintenance protocol for opioid dependence treatment. here we will report a case of a male with priapism after rapid discontinuation doses of methadone. case presentation : the case was a young married male who r...