In 1964, a positive ion horizontal type Van de Graaff accelerator (KN3000) was installed at Atomic Energy Center, Dhaka (AECD). This accelerator was manufactured by the High Voltage Engineering Corporation, Burlington, Mass., USA. Van de Graaff accelerator consists of a number of operating parts related each other. This accelerator can produce and accelerate 3 MeV proton beam using Hydrogen, He...

Environmental pollution has a great impact on human health, ecosystems, and financial development. This paper depicts the recent studies severity of environmental in developing countries. Its remedial measures were based questionnaire survey polluted sites, which collected data information types, causes, effects, sources, duration pollution, obtained from available publications newspaper report...

BACKGROUND Dengue virus (DENV) activity has been reported in Dhaka, Bangladesh since the early 1960s with the greatest burden of dengue fever and dengue hemorrhagic fever cases observed in 2000. Since this time, the intensity of dengue activity has varied from year to year, and its determining factors remained relatively unknown. In light of such gaps in knowledge, the main objectives of this s...

metres north of Stewart, British Columbia. Reserves calculated in 1989 by the previous owner, Western Canadian Mining Corporation. are 66 million tonnes averaging 0.8 per cent copper and 0.33 gram per tonne gold using a 0.5 per cent copper cut off, Access to the deposit is by helicopter from Tide Lake airstrip 50 kilometres north of Stewart. The deposit was diamond drilled extensively by West...