the aim of this research is investigating the relations between climatic large scale signals and spring rainfall of khorasan-e razavi province. in this research, we have analyzed 38 years of rainfall data in khorasan-e razavi province, located in northeastern iran. we attempted to train artificial neural network based upon climatic large scale signals with 38 years of rainfall data. for perform...

BACKGROUND To find out different species of helminthes and blood/tissue protozoan parasites of stray dogs and their potential role for transmission of zoonotic species to human in Mashhad, Khorasan Razavi Province, northeast Iran, during 2008-2009. METHODS Totally, 100 stray dogs were selected among Mashhad municipal collection from different sites of the city. Internal organs were examined f...

the thysanoptera fauna of iran are still very incompletely known. as a result of the study of thrips fauna in different localities of khorasan-e-razavi province during 2012-2014, a total of 46 species in 20 genera and 3 families are recorded for this area. among them, 43 species are newly recorded for the fauna of this province; and pezothrips dianti is newly recorded for the fauna of iran. dis...

afghanistan throughout its history has witnessed wars and conflicts have been numerous domestic and foreign. this has resulted in the migration of residents of this country. former soviet invasion of the country and then flare-up of internal strife after the withdrawal of soviet troops, in accelerating their migration to neighboring countries, especially iran has an important role. the aim of t...

Water shortage crisis is an issue that has led to drastic changes in different agricultural policies, especially in arid and semi-arid areas. Uncertainty in the amount of resources, e.g. water, used for agricultural production entails risk for farmers' income and cropping pattern changes. In the present study, the robust optimization model was used for optimal allocation of arable lands of Khor...