different species of syrphid flies are beneficial insects in nature and are important in agriculture. during a faunistic study on syrphid flies (dip.:syrphidae) on 2011 to 2012 of djolfa region (east azarbaijan province), one merodon (meigen, 1803) species was collected. they were identified as merodon latifemoris radenkovic, based on morphological characters as a new species from iran region. ...

background earthquakes cause numerous losses and damages and victims enter to severe needy complex care and internal surgery. the study proposed to investigate the frequency of the fundamental strategies for reducing injuries and fatalities resulting from earthquakes. material and methods a cross - sectional study was carried out to determine the prevalence of trauma inflicted on the victims of...

excessive withdrawal of groundwater and reduced rainfall in recent years have caused the drawdown of groundwater table. therefore, it is necessary to manage it for preventing its damage. the present study was carried out to investigate the effect of increasing the irrigation efficiency on groundwater fluctuation on ajab-shir plain aquifer. the aquifer was simulated by using visual modflow 3.1 s...

this study considers the price transmission mechanism between farm and retail levels of beef market in east azerbaijan with weekly prices over 1377:1 to 1390:52 periods. to this end, using advantages of multivariate models, hansen- seo (2002)'s two- regime threshold vector error correction model (tvecm) was estimated by the maximum likelihood approach for evaluate the price transmission me...

one of the main challenges facing the agriculture bank of iran regarding lending loans is the high probability of default by farmers. several factors could be involved in this issue and should be considered in order to control and reduce the risk in the failure of repayment. this study aimed to examine the factors affecting the repayment performance of agricultural loans in the city of maragheh...

This study aimed to determine phenolic compounds of Artemisia spicigera (family Asteraceae) growing in East-Azarbaijan province of Iran. 20%, 40 % and 60% SPE fractions of methanolic extract of A. spicigera, were subjected to reversed phase preparative HPLC, with the mobile phase consisted of methanol and water. Structural identification of phytochemicals by spectroscopic methods including UV a...

In order to isolate and identify endophytic fungi of Phragmites australis, numerous samplings were conducted from the plants grown in the southern areas of the Caspian Sea in Guilan, Mazandaran and Golestan provinces and saline soils around the Lake Urmia at province of East Azarbaijan. Twenty-one isolates of the genus Radulidium were obtained from healthy tissues of P. au...

trichogramma ingricum sorokina, 1984, an egg parasitoid, only known from russia (st. petersburg), here is newly recorded from northern iranian provinces including west and east azarbaijan and mazandaran. the localities and hosts are as follows: tabriz, on eggs of cydia pomonella (l.); urmia (chubtarash, najafabad-e gharebagh, tasmalu, ghulenji), on eggs of c. pomonella and lobesia botrana den &...

In this study, qualitative land suitability evaluation was made for research station of East Azarbaijan, for tomato, potato, onion and bean. The study was done using Simple Limitation Method (SLM), Limitation Method regarding Number and Intensity (LMNI) and Parametric Methods (PM) such as the square root and the Storie methods. The results from different methods indicated that the most importan...