Electronic Journal of Differential Equations, Vol. 2008(2008), No. 03, pp. 1-6. Title: Sufficient conditions for the oscillation of solutions to nonlinear second-order differential equations Author: Ahmed Berkane (Univ. Badji Mokhtar, Annaba, Algeria) Abstract: We present sufficient conditions for all solutions to a second-order ordinary differential equations to be oscillatory. Submitted September 7, 2007. Published January 02, 2008. Math Subject Classifications: 34C15. Key Words: Nonlinear differential equations; oscillation.