Dissolved organic matter (DOM) is one of the important parameters water quality in aquatic ecosystems. In experiments, phyto- and bacterioplankton actively consumed 14C-labeled chlorella hydrolyzate. Removal (by filtration) cyanobacteria from environment leads to an increase rate DOM consumption by bacteria. This indicates possibility a negative effect cyanobacterial metabolites on physiologica...

Introduction. The construction of old age is a set strategies to create and implement the image desired age. article considers biological, psychological environmental factors from point view their modeling, which lend themselves possibility creating, managing eliminating certain mechanisms, depending on role in structure aging. Objective. work devoted systematization scientific data aging mecha...

The main purpose of this research is to determine the effective factors in adopting biological control in the Farmer Field School approach. The method used in this research is descriptive-correlation and comparative, which has been done by survey. The rice farmers of the township of Babol, Mazandaran, Iran were selected as the sample population of this research. The statistical sample of the re...