background : this study was carried out to evaluate activities in different branches of science in iran compared to other countries over the past 35 years. methods : e ssential science indicators (esi ) and web of science from (thomson reuters isi) and scimago journal & country rank (sjr) were searched for scientometrics data . esi indicated place of iran among other countries in all 22 scienti...

Schistosoma japonicum, the only schistosome species in the Philippines, was first described in 1906 among patients at the Philippines General Hospital and among inmates of a Manila prison [1]. In 1937, Onchomelania quadrasi was identified as the intermediate host of S. japonicum in the Philippines, and mapping projects to locate transmission sites commenced. Such studies revealed that schistoso...

The stereospecific polymerization of conjugated dienes began in 1954 with the first catalysts obtained by combining TiCl4 or TiCl3 with aluminum-alkyls, i.e. the catalytic systems previously employed for ethylene and propylene polymerizations. Subsequently, many other catalytic systems were obtained and examined by a combination of transition metal or lanthanide compounds with appropriate alkyl...

Many problems in mathematics and science require the use of infinite-dimensional spaces. Consequently, there is need for an analogue of the finite-dimensional notions of ‘Lebesgue almost every’ and ‘Lebesgue measure zero’ in the infinite-dimensional setting. The theory of prevalence addresses this need and provides a powerful framework for describing generic behavior in a probabilistic way. We ...