during the faunistic survey on the mites of sorkhe-hesar forest park, tehran, many specimens were collected and identified, of which evimirus uropodinus (berlese) is recorded for the first time from iran. the identification was confirmed by dr. m. l. moraza, navarra university, spain.

internationally, one of the most important purposes to establish a national park is to protect a unique ecosystem with all its inclusive biota. therefore, this will facilitate the management and protection of the neighboring lands. unfortunately, this trend was reversed in iranian national parks. during recent decades, the land cover changes in protected areas have led to the decrease of the re...

genetic studies were carried out on a total of 196 psychiatric patients, hospitalized in sorkhe hesar, roozbeh, cherazi and chaharom aban hospitals. out of all the patients studied, 74 were schizophrenic, 30 manic-depressive, 47 depressive (neurotic), 12, hysteric, 9 epileptic and the remainder had different psychiatric diseases and conditions such as: anxiety and phobia, scrupulousness mental ...

nowadays, the machinery dependent life makes the people take refuge in natural recreational places. therefore, evaluating the recreational value of natural promenades has great importance to lead to more protection. in this research, economic valuation of sorkheh hesar national park, and protected area of geno were computed, and socio-economic factors compared in each area. geno protected area ...

investigations in recent decades have shown an unexpected increase in aerosol concentrations in metropolitan and industrialized regions. it was sometimes followed by heat islands and probably decreases in precipitation due to an inadvertent cloud overseeding process. particle pollutants act like small cloud condensation nuclei in which they form large collections of small droplets in cloud. col...

due to the different factors and complexity of their effects on healthy and sustainability of urban forest, this study has been tried by means of determining effective factors in ecosystem, and dividing sorkhe hesar man made forest park to homogeneous units according to natural factors (slope, aspect, high, soil depth, mixture and pure planting system) and human factors (amount of irrigation an...

The experiment was aimed to study the chemical constituents of essential oils from two Pimpinella L. species including P. deverroides - Boiss, and P. tragium Vill. growing wild in Iran. To do this, the essential oil of fruits of two P. tragium populations (Sefidkhani and Hesar, Markazi province, Iran) and one population of P. deverroides (Kerend, Kermanshah province) were extracted by a Cleveng...

Earth dam is a structure as homogeneous or non-homogeneous forms for raising water level or water supply. Earth dam consist of different parts that one of the main parts is clay core. Choosing an optimal non permeable core which causes reduction of seepage through dam body and also being stable is necessary. The objective of this research is to optimize the geometry of earth dam clay core such ...