Presented at: NATIONAL AUTONOMUOS UNIVERSITY OF NICARAGUA, LEON INVESTIGATION VICERECTOR, POSTPGRADUATE AND SOCIAL PROJECTION 2th SCIENTIFIC CONGRESS ¨THE INVESTIGATION A WAY TO THE KNOWLEGE AND DEVELOPMENT¨ 17 NOVIEMBRE 2009

Presented at: UNIVERSITIES NATIONAL COUNCIL III UNVERSITY SCIENTIFIC CONGRESS 41 ANNIVERSARY OF THE CATHOLIC FARMING LIVESTOCK UNIVERSITY OF THE DRY TROPIC ¨UNIVERSITY, SCIENCE AND TECNOLOGY: A STRATEGY FOR CONFRONTING THE NATIONAL GLOBAL CHALLENGE¨ 23 SEPTEMBER 2009