Examples include the AnyDVD and BlazeDVD Free DVD players, and DVD Region Killer 2.7 or DVD 43 (DVD for free). AnyDVD is available on a 21-day free trial but after that must be purchased, so the free version of BlazeDVD is the one to try first, followed if necessary by DVD 43.
Noun. 1. tabula rasa-a young mind not yet affected by experience (according to John Locke). mind, psyche, nous, brain, head-that which is responsible for one's thoughts and feelings; the seat of the faculty of reason; his mind wandered; I couldn't get his words out of my head.
Ras is the prototypical member of the Ras superfamily of proteins, which are all related in 3D structure and regulate diverse cell behaviours. When Ras is 'switched on' by incoming signals, it subsequently switches on other proteins, which ultimately turn on genes involved in cell growth, differentiation and survival.