background: this study aimed to evaluated trends for iron and manganese concentrations in wells, reservoirs, and water distribution networks in qom city during the summer of 2012. methods: this was a cross-sectional study. the studied scopes consisted of groundwater (60 wells), reservoirs (10 tanks), and water distribution network (33 points). one sample was taken from each source monthly. stat...

introduction: cutaneous leishmaniasis is a parasitological disease that is spread in many tropical and subtropical areas in world. this disease transmitted by female sand flies. it is clear that knowledge on sand flies ecology has the main role to planning of control of cl. this study was carried out for determination of cl vectors, in ghanavat district in qom province during 2012. material and...

visceral leishmaniasis due to leishmania infantum is endemic in many rural areas of iran. an investigation was carried out during april to november 2001 in ghahan rural district of qom province, in order to identify the phlebotomine sand fly fauna. 971 sand flies were totally collected from outdoor and indoor resting places by sticky traps. ten species of phle botomine sand flies including 8 sp...

5G networks and beyond introduce a larger number of Network Elements (NEs) functions than former cellular generations. The increase in NEs will, thus, result significantly increasing the Management-Plane (M-Plane) data collected from NEs. Therefore, conventional centralized Management Systems (NMSs) will face fundamental challenges processing M-Plane data. In this paper, we present concept Qual...

Mashhad Plain affects by a series of active faults in the northern margin of the Binalud and the southern margin of the Kopet-Dagh mountain ranges. The activity of these faults forms the morphology of the stepped bedrock of the Plain. In addition, the faults’ activities in the Quaternary period are the main effective parameters in thickness and texture of aquifer deposits in Mashhad Plain. In t...

background: the human body gets fluorine from a variety of sources including food and water. this element is essential in order to prevent tooth decay. however, high concentrations of this element led to a lot of dental fluorosis and skeletal injuries. this study aimed to measure the concentration of fluoride in water and tea consumed in the city of qom. methods: the present study is cross-sect...