deficiency of water resources is one of the major challenges at the global scale and also in iran. the existence water resources of oceans and seas such as the caspian sea and persian gulf in the north and southern parts of iran respectively, can be considered as the alternative to dominate the future problem. this study is processed absorption of nacl based-on natural zeolite and perlite. in o...

tumors of t h e male u ret h ra are r a re, co m prising <1% of urolo g ic malignancies. this is a re po rt of a 44-ye a r-old man pre s ented with a 4 -month history of gross initi a l h e maturia and d y s u ri a . af t e r exami n ing the pa t ien t , we found a firm mass ex t ending 1 c m within the p roxim a l bulb a r uret h ra and a pathologic report of moderately differen t iated sq u a...

introduction the historical experience of development process in developed countries revealed that rural development is a basic requirement for national development and that it should be considered and given high priority. accordingly in iran, the government also paid more attention to rural development in recent years. in this regard, different methods and approaches were implemented due to so...

to evaluate symbiotic effectiveness and salt tolerance of sinorhizobium meliloti strains, 50 rhizobial strains were isolated from root nodules of medicago sativa cultivated in tehran and zanjan fields. under n-free conditions, the symbiotic effectiveness of different sinorhizobium meliloti strains of bami cultivar were evaluated under greenhouse conditions using 50 sinorhizobium meliloti strain...

this research was aimed to investgate the effect of light quality on micropropagation of pear rootstock oh×f333. first, single nodes explants were cultured in modified ql medium containing ba at four levels (0, 0.5, 1, and 2 mg/l-1) and iaa at three levels (0, 0.1, and 1 mg/l-1) and were evaluated for shoot proliferation. then, plantlets subcultured in modified ql medium containing 1 mg/l-1 ba ...

introduction the main challenge for health in twenty century was survival, but in the new century the life with a better quality is an important matter. aging is an emotion period in human life and attention to needs in this period is a social necessity. therefore, attention to the quality of life of elders is very important in the social policy. the number of the elderly is increasing across t...

the genus eremostachys (lamiaceae), consists of about 60 species which 15 species of eremostachys grow wildly in the north-west of iran. the rhizomes and roots of e. laciniata have traditionally been used as a local analgesic and for the treatment of rheumatic diseases and pain in the feet. this experiment was conducted in the north-west of iran in 2012-2013, to evaluate morphological diversity...

root rot is one of the important diseases of bean in zanjan province and two fungal pathogens, rhizoctonia solani and fusarium solani are the major causal agents of this disease in the region. in this research, the inhibitory effect of n-hexane, di-ethyl-ether, chloroform and ethanol extracts of five plant species, hermel (peganum harmala), thyme (thymus kotschyanus), yarrow (achillea wilhelmsi...

forest cover is one of the most effective factors in reducing flooding in northern iran, so that in recent years the destruction, land use changing and uncontrolled harvesting of forest areas, has greatly increased the number and magnitude of floods. so far, there have been few studies on forest hydrology in iran, particularly the northern hyrcanian forests. this study examines the impact of a ...