But the United States should shift its focus. The event was a paradigm shift and scientific revolution. Sedimentary environments can shift their geographical positions through time. When a person moves, these otoliths shift position. They perform some of the same duties as the fire guard shift. That meaning can however shift and morph. It works opposite to that of right shift operator. The swash plate can shift vertically and tilt. The whole tectonic shift of mass media. The engine was mated to a 5-speed sequential shift automatic. Cultural context can also shift and evolve. I think that comes from a generation shift. As a result, spectral lines may shift or split. If required, they can easily shift their activity to the night hours. At around this time, females usually shift them to a new den.