What type of details about william madia  can be gathered from the following bio?  Bio: william -lrb- bill -rrb- j. madia -lrb- born 1947 -rrb- is an american scientist and laboratory director . madia holds a ph.d. in nuclear chemistry , a field in which most of his career was focused at battelle . in his early twenties , madia was drafted into the us army where he trained nuclear reactor operators . he later worked for battelle , a non-profit research company where he began as a researcher before being promoted to direct various laboratories across the united states and western europe . madia retired in 2007 but continues to lead several organizations out of interest .
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