2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148110A fit to proton, neutron and deuteron spin asymmetries is presented and polarized parton distributions in nucleon are given. These densities have their roots in the MRS fit for unpolarized case. The integrals of polarized distributions are compared with the experimental figures. The role of polarized gluons is also discussed.12 pages, latex, 4 figures appended as uuencoded ps-fileHigh Energy Physics - Phenomenologytext