due to the special nature of agricultural activities and results of decisions influenced by the risk and uncertainty of these activities, consideration risk is essential in planning for agriculture sector. interval-valued fuzzy programming approach is advantage of in this study for considering the conditions of uncertainty and additionally emphasizing on the limitation of water resources in def...

Introduction: Since nutritional status has a great impact on physical and mental health, this study was conducted to determine the relationship between nutritional status and depression in elderly referring to urban health centers of Esfarayn, North Khorasan province, Iran) in 2017. Methods: This cross-sectional study was performed on 250 elderly referring to Esfarayen health centers. Data col...

Purpose: Present study was conducted with the aim of the effects of teaching method of writing with brain-based learning on educational self-efficacy and written ability of female students in fifth grade of primary school. Materials & Methods: A quasi-experimental method with designing pre-test and post-test with unequal control group was used and to select the sample, the one-stage cluster sam...

background: leishmaniasis is a widespread problem, especially in the tropical and subtropical countries. since understanding epidemiologic and geographical distribution of the diseases is necessary for prevention and control of leishmaniasis. this study was conducted for epidemiological survey of cutaneous leishmaniasis in north khorasan province, using gis during the years 2006-2013.methods: i...

the analysis of natural and cultural factors in the contexts of an archeological site would reveal the processes constituting the event of settlement after the formation of cultural layers. in other words with the study of cultural processes, we seek the information and patterns which cause formation, shaping, and unevenness of the site to its present shape. in this regard, the initial studies ...

background : leishmaniasis is an important public health disease in many developing countries as well in iran. the main objective of this study was to investigate on leishmania infection of wild caught sand flies in an endemic focus of disease in esfarayen district, north east of iran. methods : sand flies were collected by sticky papers and mounted in a drop of puri’s medium for species identi...

abstract potato virus a (pva) is one of the members of genus potyvirus. pva particles are straight to slightly flexuous rods and contain of single stranded rna. in the spring and summer of 2005, sampling accomplished to determine potato virus a from potato fields in northern and razavi khorasan provinces. samples with mosaic, shining and rolling of leaves carried in ice chamber to laboratory fo...

Background and aims: Leishmaniasis is a widespread problem, especially in the tropical and subtropical countries. Since understanding the epidemiologic and geographical distribution of the diseases is necessary for prevention and controlling the Leishmaniasis. This study was conducted on epidemiological survey of cutaneous Leishmaniasis in North Khorasan Province, using Arc GIS Software during ...