Brans-Dicke Cosmology: Thermodynamic viability
  Brans-Dicke cosmological models for a spatially isotropic and homogeneous
universe are tested in terms of the validity of the Generalized Second Law of
Thermodynamics (GSL). The investigation is carried out in the Einstein frame.
It is found that the models are thermodynamically viable for negative values of
the Brans-Dicke parameter w and thus are quite consistent with the recent
accelerated expansion of the universe.
