The cross sections of Ni(n,x)58(m+g)CO,Ni(n,x)80mCo,Ni(n,x)61Co and Ni(n,x)62mCo reactions induced by neutrons around [14]MeV were measured in this work and cal
Let R be a prime ring with a non-central Lie ideal L.In the present paper we show that if the composition DG of two generalized derivations D and G is zero on L