2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/196921We study a closed model of the universe filled with viscous fluid and quintessence matter components in a Brans-Dicke type cosmological model. The dynamical equations imply that the universe may look like an accelerated flat Friedmann-Robertson-Walker universe at low redshift. We consider here dissipative processes which follow a causal thermodynamics. The theory is applied to viscous fluid inflation, where accepted values for the total entropy in the observable universe is obtained.11 pages, revtex 4. For a festschrift honoring Alberto Garcia. To be publishen in Gen. Rel. GravGeneral Relativity and Quantum Cosmologytext