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The overall characterizations of the phosphors lead us to conclude the formation of the phosphor for different applications. However the overall conclusion is the chemistry of the phosphors are yet to be fully understood by various competitional techniques as well as through other characterization techniques. Because of the lack of many other characterization techniques we could do only PL, XRD, FT-IR, SEM and Particle size only. For further research these phosphors can be prepared through different chemical routes and also can be tried in devices like CFL and LEDs.

The present study was undertaken to assess the effect of organo phosphorous pesticide Chlorpyrifos, Cypermethrine and Endosulfan on the non target organisms of the fish Labeo Rohita for the following reasons. In India, the demand for the pesticides sold under various brand names has gone up from 1400 metric tones to 7500 metric tones in 1995 to 2005. The aquaculture forms that are being set up recently, in this region are suffering from the invasion of pesticides used in high quantities for agricultural practices. In India labeo rohita fish is one of the majar carps is heavily affected by the...