Pressure and temperature of metamorphism in the Mahneshan area were estimated in order to determine the type of metamorphism and tectonic setting of the rocks. Biotite, muscovite, plagioclase, garnet, quartz, andalusite and staurolite minerals are crystallized together in metapelites in the regional metamorphic rocks of southwest Mahneshan. Chemistry of coexisting minerals is studied using micr...

Bakground and Objective: The soft tick, Ornithodoros tholozani, is of major medical importance due to biting humans and taking blood-meal. Despite the medical importance of this tick, no in-depth studies have been carried out to distinguish different forms and their capability in transmitting the disease. To this end, this study was carried out to identify phenotypic diversity, and contaminatio...

Background: Unsustainable development of agriculture and aquaculture has reduced the water quality of rivers. The most important aim of this study is assessing of water quality in the Ghezel Özan basin in Zanjan province. Method: 18 sites were selected based on standard criteria including land use, geology, biodiversity points, accessibility and standard distributions. Content of Dissolved Oxyg...

Background and Objective: Heavy metals are toxic and can enter the food and thus the health of people who consume these kinds of foods may be affected. The aim of this study was to investigate the concentration of heavy metals in fruits and to estimate the exposure level of heavy metals by fruit consumption. Materials and Methods: In this descriptive cross-sectional study, 60 samples (35 sampl...

Background: Mahneshan County, with an area of 2815 km2, located west of Zanjan province, is the most prosperous and pristine regions . The county is rich in Plant biodiversity due to its plains and highlands, diverse habitats and proper soil and water resources. A significant proportion of its herbs have medicinal properties, including the treatment of gastro-intestinal disorders, which have no...

Background and Objective: Human flea (Pulex irritans) is one of the most important human ectoparasites that transmits various pathogens and causes skin irritation by biting humans and animals. Planning control measures against this vector in various regions requires the knowledge of the pathogens within the vector. Thus, this study was carried out to identify Bartonella and Rickettsia infection...