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" Work in these areas can have a huge impact on our environment , the cost of energy and even the safety of our food , " said Elde . Since such manufacturers are expert at building digital logic , the cost of producing digital radio components could drop significantly . A group of Duke graduate and professional students are arranging transportation , the cost of which may be partially subsidized , and the group plans to drive up and back on the same day . As compelling as an individual case is , however , the cost of providing individual access cannot be to sacrifice the system that ultimately establishes whether therapies are safe and effective .