▁Activ ated ▁Ga N ,” ▁J . ▁Phys . ▁D : ▁App l . ▁Phys ., ▁ 4 1 , ▁ 1 2 2 0 0 1 ▁( 2 0 0 8 ). ▁ ▁References ▁▁ ▁Category : L iving ▁people ▁Category : Year ▁of ▁birth ▁missing ▁( l iving ▁people ) ▁Category : P en nsylvan ia ▁State ▁University ▁al umn i ▁Category : Univers ity ▁of ▁Minnesota ▁al umn i ▁Category : Univers ity ▁of ▁California , ▁San ▁Diego ▁fac ulty ▁Category : O ak ▁R idge ▁National ▁Labor atory ▁people ▁Category : American ▁chemical ▁engine ers ▁Category : 2 0 th - century ▁American ▁women ▁Category : 2 1 st - century ▁American ▁women ▁Category : 2 0 th - century ▁women ▁engine ers ▁Category : 2 1 st - century ▁women ▁engine ers ▁Category : W omen ▁chemical ▁engine ers ▁Category : 2 0 th - century ▁American ▁chem ists ▁Category : 2 1 st - century ▁American ▁chem ists ▁Category : American ▁women ▁chem ists ▁Category : American ▁women ▁engine ers <0x0A> </s> ▁Fred rik ▁Bak k man ▁( pre viously ▁Fred rik ▁Joh ans son ; ▁born ▁ 2 9 ▁July ▁ 1 9 8 6 ) ▁is ▁a ▁Swedish ▁or iente ering ▁compet itor . ▁He ▁was ▁born ▁in ▁Bor å s . ▁ ▁He ▁won ▁a ▁gold ▁medal ▁in ▁the ▁relay ▁in ▁the ▁ 2 0 1 4 ▁World ▁Ori ente ering ▁Championships ▁in ▁A si ago - L av ar one ▁with ▁the ▁Swedish