From the defining idempotency property of a Boolean ring it is possible to prove that such ring has to have the further properties that each element is its own inverse and that such ring must be commutative.

The most important aspect of an assisted vaginal breech delivery is careful delivery of the aftercoming head.

UYPR1.413 strain belongs to a group of microsymbionts that were able to nodulate and fix nitrogen with P. rigida [ 18 ].

From the tonneau of Bentley's car the sheriff and Garland removed the groceries and sick-room supplies, stowing them in the kyacks.