We have developed a social optimization model that integrates wastewater treatment cost function and ecosystem damage cost function. The social optimal abatement level of water pollution is determined by finding the tradeoff between pollution control cost and ecosystem damage. The model is applied to data from the Lake Taihu region in China to demonstrate this tradeoff. A wastewater treatment c...

This commentary argues that future burnout research will benefit from adding two perspectives. First, as depersonalization may result from insufficient recovery during off job time, it will be fruitful to include the investigation of off work experiences into burnout research. Second, adding a day level perspective will shed more light on the burnout phenomenon. Burnout has attracted much resea...

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Background: Introduction: Searching for an ideal marker for diagnosing neonatal infection is still an important concern in every country. There are many biomarkers reported for neonatal sepsis. Haptoglobin is an acute phase reactants which rise in response to infection and injuries. In this report we discussed the efficacy of serum haptoglobin level in different cut off levels in early onset ne...

OBJECTIVES The study aims to analyse the physiological characteristics of top level off-road motocross, enduro, and desert rally motorcyclists to facilitate the design of a specific training program. METHODS Twenty seven off-road top level riders participated in this study which measured anthropometric data, maximum aerobic power with incremental tests of both arms and legs, isokinetic dynamo...

administrative regulations for water flow decrease distribution efficiency and effect the economical operation of irrigation networks. complications in distribution systems and the decrease in availability of water require study of the hydraulic performance of existing flow control structures. control systems designed by neyrpic (zayandeh rud network) and usbr (doroodzan network) were investiga...

damping-off of seedling is a major disease of cotton in iran. disease may become epidemic in soil with low temperature and high moisture if seed treatment isn’t done. recently, trichoderma spp. are considered as one of the biological control methods of seedling damping-off. one proposed mechanism for biocontrol in trichoderma spp. is stimulation of host defense responses and induction of resist...