the characteristics of tympanic bullae have adaptation value. based on the recent studies in the genus meriones; meatus is the only part of tympanic bullae which has a taxonomic value. in this study, we examined interspecific changes of tympanic bullae in three species of this genus and also the relation of these changes to the climatic conditions of the regions was studied in two species. thre...

The genetic algorithm (GA) is an evolutionary optimization algorithm operating based upon reproduction, crossover and mutation. On the other hand, particle swarm optimization (PSO) is a swarm intelligence algorithm functioning by means of inertia weight, learning factors and the mutation probability based upon fuzzy rules. In this paper, particle swarm optimization in association with genetic a...

introduction the area studied is located north of azna (lorestan province) in a small portion of the sanandaj – sirjan structural zone (mohajjel et al., 2003).this area is part of the zagros orogenic belt, formed by the opening and closure of neotethyan ocean. from ne to sw, it consists of three parallel tectonic regions: the orumieh-dokhtar magmatic belt, the sanandaj-sirjan structural zone an...

Introduction:  Plants are a rich source of phenolic compounds that as natural antioxidants prevent oxidative stress and are very good for health. Ziziphora clinopodioides belongs to Lamiaceae family and its aerial parts are used in pharmaceutical and food industries. It is effective in the treatment of heart disorders, cold, depression, diarrhea, coughing, migraine and...

background: to check the feasibility of using geographical information system (gis) methods, we linked the brucellosis data of human and animals. methods: in a village-based ecological study in bardsir- a district in kerman province located nearly to the central part of iran- data of human brucellosis, socio-economic level, and livestock characteristics (2001-4) were linked by using gis methods...

background & aim: since traditional knowledge is base of producing new herbals and other natural products, and old people of ancient cities know about characteristics of such herbals, therefore, death of such people will gradually causes demolishing of their knowledge about herbals. therefore, it seems it is necessary to register and save such information. the goal of this research is to st...