BACKGROUND Free-living amoebae (FLA) are a group of ubiquitous protozoan, which are distributed in the natural and artificial environment sources. The main aim of the current study was to identify the presence of FLA in the recreational hot springs of Sarein in Ardebil Province of Iran. METHODS Seven recreational hot springs were selected in Sarein City and 28 water samples (four from each ho...

1 – introductiontourism is a powerful force of change in the economy in both the developed and in the least developed countries. due to the formation of the concept of sustainable development, tourism industry as well as like other industries has been seeking ways to further alignment with the concept. sustainable tourism as a form of alternative tourism, is seeking to improve the quality of li...

positive effects of tourism due to social, cultural and economic interest in becoming the first industry in the world, so that many countries and areas are by creating suitable infrastructure exploitation of the benefits sought the industry. for most of these countries an important source of tourism business, income, job creation and foreign exchange is considered. for this reason, to achieve t...

background: free-living amoebae (fla) are a group of ubiquitous protozoan, which are distrib­uted in the natural and artificial environment sources. the main aim of the current study was to identify the presence of fla in the recreational hot springs of sarein in ardebil province of iran. methods: seven recreational hot springs were selected in sarein city and 28 water samples (four from each h...

Abstract. The UV radiation level at the Earth’s surface is generally affected by several factors such as time, geographic location, and climate. first observations of solar ever made in NW Iran, obtained June 2019 are reported this work. analysis hourly values irradiances measured study area reveals significant diurnal variation during daylight hours, with lower morning afternoon higher around ...

Despite the considerable breakthrough in district heating systems (DHS) globally, there is not yet any policy on developing this technology Iran. This country has a high range of energy demand, while renewable energies play minor role its supply chain. Furthermore, world going through transition towards resources, which currently consist only 10% total mix. As first contribution area, paper aim...

background: dung beetles of coleoptera associated to undisturbed cattle droppings in pastures present great diver sity and abundance. dung beetles also play an important role for transmission of some helminthes to human and cat tle. this study was made to survey the biodiversity and abundance of these beetles in ardebil province, western iran. methods: according to the field study all beetles a...