▁US ▁Department ▁of ▁Energy ▁and ▁coal ▁gas ification ▁for ▁the ▁Environment al ▁Prote ction ▁Agency ▁in ▁ 1 9 7 9 . ▁R TI ▁trained ▁Chinese ▁government ▁employees ▁on ▁using ▁computer ▁models ▁to ▁forec ast ▁poll ution ▁patterns ▁before ▁the ▁ 2 0 0 7 ▁Olympics ▁in ▁Be ij ing . ▁ ▁An ▁R TI ▁survey ▁in ▁ 1 9 7 3 , ▁commission ed ▁by ▁the ▁Bureau ▁of ▁N arc ot ics ▁and ▁D anger ous ▁Dru gs , ▁confirmed ▁prior ▁research ▁that ▁found ▁no ▁connection ▁between ▁drug ▁use ▁and ▁violent ▁crime , ▁despite ▁prior ▁per ception s ▁of ▁hero in ▁users ▁as ▁more ▁pr one ▁to ▁violence . ▁A ▁ 1 9 7 5 ▁study ▁R TI ▁conducted ▁for ▁the ▁National ▁Institute ▁of ▁Al co hol ▁Ab use ▁and ▁Al co hol ism ▁found ▁that ▁ 2 8 ▁percent ▁of ▁ 1 3 , 0 0 0 ▁te en agers ▁pol led ▁were ▁" problem ▁drink ers ," ▁despite ▁their ▁age . ▁A ▁ 1 9 9 6 ▁study ▁done ▁by ▁R TI ▁and ▁fund ed ▁by ▁the ▁Pent agon ▁found ▁that ▁drug ▁ab use ▁in ▁the ▁military ▁had ▁been ▁reduced ▁by ▁ 9 0 ▁percent ▁since ▁ 1 9 8 0 . ▁ ▁R TI ▁in ▁ 1 9 7 5 ▁recommended ▁that ▁the ▁Bureau ▁of ▁the ▁M int ▁halt ▁expensive ▁production ▁of ▁p enn ies , ▁and ▁replace ▁half - d oll ars ▁with ▁a ▁new ▁doll ar ▁coin . ▁In ▁ 2 0 0 1 , ▁R TI