the objective of this study was to diagnose integrative ecological health of an urban stream,which is located in the asian temperate region. the research approach was primarily based on the index ofbiological integrity (ibi) using fish assemblage and a qualitative habitat evaluation index (qhei). and these indexes were compared with long-term conventional chemical dataset during 1996-2005. for ...

the objective of this study was to diagnose integrative ecological health of an urban stream,which is located in the asian temperate region. the research approach was primarily based on the index ofbiological integrity (ibi) using fish assemblage and a qualitative habitat evaluation index (qhei). and these indexes were compared with long-term conventional chemical dataset during 1996-2005. for ...

in 1979, a community health survey for the purpose of establishing population babe. services were conducted in the villages of region of isfahan with a population of about 10,000. the target group involved males and females with in the age group of more than one year old. the population under study, 617 males and 565 females who were selected by household random sampling, where examined for the...

an erosion hazard index methodology (ehim) was developed for assessing stream erosion. the index of stream erosion is designed as a management tool. assessing stream erosion involves consideration of a range of aspects of streams and a value judgment about a desirable state. the assessment of the erosion indicators of streams was based on a state-wide assessment of physical stream condition. a ...

An erosion hazard index methodology (EHIM) was developed for assessing stream erosion. The index of stream erosion is designed as a management tool. Assessing stream erosion involves consideration of a range of aspects of streams and a value judgment about a desirable state. The assessment of the erosion indicators of streams was based on a state-wide assessment of physical stream condition. A ...

Instream flow needs (IFN) assessment studies are performed to provide guidelines for stream water management and to assess the impacts of different water projects such as weirs, dams and stream diversions on the available fish habitat. The physical habitat simulation is one of the IFN assessment methods and also a powerful tool in management of river ecosystem that has not become a common metho...

to provide an overview of the development of health technology assessment (hta) in iran since 2007, and to facilitate further development of hta and its integration into policy making.data of this study were collected through key documents (e.g. literature, laws, and other official documentation) and analyzed by experts of opinion in form of qualitative methods.health technology assessment ente...

rivers and streams are one of the most important water resources. rivers water quality depends on various conditions such as hydrological, physicochemical and biological processes.water resources have significant impact on social, economical and political developments. the zyarat watershed which is the main source of surface water to supply water for city of gorgan and surrounding areas has bee...