the location of extracellular enzyme activities in soil aggregates can be influenced by slope position. this study aims to determine the effect of slope position on aggregate distribution of organic c and l-glutaminase activity. the soils were collected from different slope positions (shoulder, backslope, footslope and toeslope) at two pasture ecosystems (fereydoonshahr and chelgerd, central ir...

extract to separate patient from the others is uncomfortable for the patient and for the nurse . some of people see this as a punishment and consider little value for this. but some of people refer to uses and benefits and said:”almost no adverse and mental effects”.   of course, it is very difficult to determine the issues in isolation condition. this paper has offered some suggestions for tak...

future increase of mobile communication subscribers will require a great capacity expansion of the cellular systems. in order to accommodate the increasing number of subscribers, the cell size will have to be much smaller than current size. therefore, it is predictable that the location updating and paging procedures will produce a major part of signaling traffic in these networks. this pape...