2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42505A grand unified model based on SO(10) and supersymmetry is presented to account for the masses and mixing of the neutrinos observed in experiments.2 pages, To be published in the Proceedings of the 1st International Symposium on New Developments of Integrated Sciences, Tokyo, Japan, 11,13,14 March, 2003High Energy Physics - Phenomenologytext