background & aim: myrtle (myrtus communis l.), is an important medicinal plant that is used for pharmacological uses and conservation of environments (for example preventing the soil erosion) regards to its specific condition habitat.experimental: in this research, phytochemical variations of the essential oils from different populations of myrtle collected from fars (saydan, cheshme-ali, a...

the existence of eight imitations and five translations of hosn va del into other languages such as english and german shows the importance of this persian book of verse. many researchers have sought the sources of this work and some sources have been mentioned, but the imitation of sibak neishaburi from nezami’s khosrow va shirin, as the most important source of this work, has not yet been m...

dog rose (rosa canina l.) is a wild native species in iran, with a significant genetic diversity. the purpose of this research was to study quantitative and qualitative characteristics of saturated and unsaturated fatty acids dog rose ecotypes in five habitats of isfahan province in 2014-2015. oil was extracted from seeds by using soxhlet apparatus; the fatty acid composition of oil was charact...

purpose: to describe the methodology and implementation of the investigation for prevalence and causes of visual impairment in tehran province. methods: this population-based cross-sectional study was conducted on all urban and rural residents of tehran province in 2003. a stratified cluster random sampling with probability proportional to size procedure was used. first, best pinhole-corrected ...

in this study, he’s variational approach (va) is used to solve the non-naturalvibrations and oscillations. the method works very well for the whole range of initial amplitudesand does not demand small perturbation. it is also sufficiently accurate to both linear and nonlinearphysics and engineering problems. we consider some examples to illustrate the effectiveness andconvenience of the method....

abstract hydatid cyst is the larval stage of the cestode worm echinococcus granulosus, which causes echinococcosis in human and some other mammalian. iran is located in endemic zone of this disease and chaharmahal va bakhtiari province, due to existence of sheep husbandry jobs, has a potential for high prevalence of the disease, . therefore, this investigation was carried out to study seroepide...