poliomyelitis (polio) is a highly infectious viral disease, which mainly affects young children. the virus is transmitted by person-to-person spread mainly through the faecal-oral route or, less frequently, by a common vehicle (e.g. contaminated water or food) and multiplies in the intestine, from where it can invade the nervous system and can cause paralysis. initial symptoms of polio include ...

in this study, effects of buthus eupeus venom on chick biventer cervices nerve-muscle preparation were investigated by twitch tension method. the venom, at 1.3 ?g/ml, increased contractile responses in indirect stimulations. these effects were milder in direct muscle stimulations. it also caused significant enhancement in postjunctional sensitivity as assessed by responses to exogenous acetylch...

conclusion applying serologic tests for infant whose mother is suspected of brucellosis seems logical. patient the patient was a 3.5 month infant with irritability, loss of appetite and immobility of left hip joint since 10 days ago. there was no medical problem during fetal and neonatal period of his life. the infant nutrition was provided by breast feeding. about one month ago his mother has ...

jondishapour school was the first center of cultural transmission in the world among various civilizations like the greek, syriac, hindi, chinese and roman formed by permissive policies of khosro anushirvan in iran. the idea that iranian knowledge can be flourished with the help of progress made in science in different cultures was, for the first time, suggested by khosro anushirvan and his com...

abstract this study is an attempt to investigate the influence of targeting subsidies on price transmission pattern in iran's egg market. the targeting subsidies plan was imposed by 20 december 2010. using of daily price time series data, the study was conducted during december 2009 to october 2011. using ecm model, price transmission models were estimated for the two periods (e.g. before and a...

background: wearing spectacles is the most common approach in correcting the refractive errors worldwide. due to harmful effects of overexposure to solar ultraviolet radiations, the usage of multi-layer coatings in ophthalmic lenses has recently been increased. these lenses can reduce the reflections and hence increase the transmission of visible light; they can also decrease the transmission o...