Lake Urmia in northwestern Iran is one of the hypersaline lakes of world. In the Urmia region a Cenozoic island arc was formed by northeastward subduction of Neo-Tethyan oceanic plate beneath central Iran; the lake is therefore located in the fore-arc basin tectonic setting. Satellite imagery of the Urmia region illustrates that the trend of faults are in two main NE-SW and NW-SE directions. Th...

Landslides are one kind of slopes processes have been take place in some area at worldwide and Iran every year, and they are associated with damaged, many people are harmed and losses their properties. The aim of this research landslide hazard assessment in central zab basin in the southwest mountainsides of West-Azerbaijan province, Iran by using information layers and effective factors in lan...

As widespread deserts is located in west and southwest of Iran plateau, dust storms form due to west andsouthwest systems over Syria or Iraq as well as Arabian Peninsula. These systems severely affect west and southwestregions. Sometimes the fine dusts transmit to central, north east, and east regions. In this study for investigating dustysynoptical patterns, meteorological data at 5 synoptic s...

The timings of the onset oceanic spreading, subduction and collision are crucial in plate reconstructions, but not always straightforward to resolve. Paleo-Tethys evolution dominated Paleozoic-Early Mesozoic tectonics West Asia, timeline events is still poorly constrained. We present new detrital zircon ages from Binalud Mountains NE Iran, order determine timing tectonic region, wider implicati...

AIM To study the trend of hepatocellular carcinoma incidence after correcting the misclassification in registering cancer incidence across Iranian provinces in cancer registry data. METHODS Incidence data of hepatocellular carcinoma were extracted from Iranian annual of national cancer registration reports 2004 to 2008. A Bayesian method was implemented to estimate the rate of misclassificati...

Human papilloma virus (HPV) infection is one of the most common sexually transmitted infections in the world. In genitalia, it causes a broad spectrum of lesions, from wart to intraepithelial neoplasia and carcinoma. The objective of this descriptive study was the distribution of the infection in our region based on gender, age, marital status and high risk sexual behaviors. Eighty one patients...

Considering the nature and structure of atmospheric weathering while occurrence daily dry periods in west northwest Iran

BACKGROUND Geographic distribution of West Nile virus (WNV) is heterogeneous in Iran by a high circulation in the southern-western areas. The objective of our study was to determine environmental and climatic factors associated with the risk of WNV equine seropositivity in Iran. METHODS Serological data were obtained from a serosurvey conducted in equine population in 260 districts in Iran. T...