the aim of this study was to determine the concentration of copper and hazard quotient (hq) in muscle of the carp aquaculture fishes (common carp) (cyprinus carpio), grass carp (ctenopharyngodon idella), big head carp (aristichthys nobilis) and silver carp (hypophthalmichthys molitrix)] in khuzestan province. 108 pieces farmed fish sampled was prepared from the azadegan warm water fish culture ...

nowadays, risk management is considered as one of the most vital methods in project management which should be utilized in every industrial project. risk management process is able to identify risks, analyze them and determine responding strategies for declining impacts of risks. also most managers confront a challenge when they want to select one problem`s solution among the other ones. there ...

using low quality water on agricultural lands in south of tehran has increased the risk of soil salinity and created problems for some agricultural crops. this study was carried out to determine of soil salinity distribution and to produce salinity map. the mapping of salinity can also identify the saline and non-saline regions that are very effective for land management and choosing kind of cr...

1. introduction one of the main characteristics of azadegan plain in the west of khuzestan province is active instability of geomorphic features of karkheh river this instability caused extensive variations in the sedimentary setup in the western parts of this plain, such as buried and abandoned river beds, which are repeated over time. therefore, these variations should be studied in more deta...

This survey is conducted with the purpose of studying factors effective in vitality of residential complexes. This is an important subject because through recognition of the reciprocal relation between human being and environment -as far as vitality is concerned- various attitudes and approaches can be recognized and on the other hand, for the purpose of explaining the concept of vitality in th...

wheat is the most important crop of iran and black or stem rust disease is one of the most severe diseases threatning the wheat production. in order to identify new resistant sources against the new race of stem rust virulent on plant with sr 31gene, the selected iranian landraces accessions of national plant gene bank of iran wheat collection were evaluated. the most virulent isolate of puccin...

wind is an important erosive force in deserts, where limited cover of vascular plant material offers little soil-surface protection. erosion and sediment from soil surfaces occurs when wind forces exceed soil threshold friction velocities. soils with physical or biological crusts usually resist wind erosion. this study was conducted by the aim of investigation the effect of trichoderma harzianu...