sentences:  Nevertheless, after the end of the war, the Franco government demanded that he leave the post, even though the position had no representative value with respect to Spain.Cabrera resigned and went into self-exile in Mexico, where he was welcomed by the Faculty of Sciences at the Universidad Nacional Autónoma de México, in which he became a Professor of Atomic Physics and History of Physics.In 1944 he began to direct the magazine "Ciencia", edited by exiled Spanish scientists; after Cabrera's death the post passed to Ignacio Bolívar.