the purpose of this study was to determine the prevalence of bovine leukemia virus (blv) in khorasan razavi and khorasan shomali provinces which are the main provinces located in the northeast of iran. total number of 429 blood samples were collected from industrial dairy herds. the samples were categorized based on province, age (2-3, 4-6, and 7-10 years old), calving (≤ 2, 3-5, and > 5) and h...

Background: The outbreak of COVID-19 has caused a devastating pandemic scenario in the world. mortality rate increased and new socio-economic challenges are emerging. Millions gloves, gowns, face masks, shields used daily to prevent airborne transmission facilitate treatment COVID-19. Mismanagement these wastes can lead concerns due their contamination potential. A comprehensive plan improve ma...

background: crimean congo hemorrhagic fever (cchf) is an acute febrile haemorrhagic disease. this study was conducted to ascertain the infection status amongst slaughterhouse workers in iran's north-eastern provinces (razavi and northern and southern khorasan), so that analysis of the results could help clarification of the epidemiology of this disease in the aforementioned provinces and easter...

BACKGROUND The aim of this study was to design pictorial key and taxonomic literature of Culex pipiens complex in Iran. METHODS Larvae were collected using standard dipping methods in 13 randomly selected areas of Bushehr, Hamedan, Kerman, Khorasan-e-Razavi, Khuzistan, Mazandaran, Tehran, Sistan and Baluchistan and Yazd Provinces from April 2009 to October 2010. The data were analyzed using S...

The present study aimed at ranking and selecting the superior geothermal project for hydrogen production in 14 provinces of Iran using a multi-objective optimization fuzzy hybrid approach through analyzing the ratio (fuzzy Moora) and expanded entropy weighting method. In this research, the extended entropy weighing method and the Fuzzy-Moora approach were utilized to weigh the criteria and proj...