1. Boas used his positions at Columbia University and the American Museum of Natural History to develop and train multiple generations of students .
2. His positions at Columbia University and the American Museum of Natural History he used to train and develop several generations of students .

yes

1. It is used as a measure of the absorbed dose , kinetic energy ( released ) and kerma ( an acronym for specific energy awarded per mass unit ) .
2. It is used as measure of absorbed dose , specific energy ( mediated ) and kerma ( acronym for kinetic energy released per mass unit ) .

no

1. On 12 February 2014 , Elebert signed under Roddy Collins for Derry City .
2. On 12 February 2014 , Roddy Collins signed for Derry City under Elebert .
no