At an early date, in an effort to counteract this weakness, the cross's mortice-and-tenon construction was adapted to incorporate four curved stones forming an open ring around the armpitted centre.
Hopf categories in the sense of Batista, Caenepeel and Vercruysse can be viewed as Hopf polyads in a braided setting via the notion of Hopf polyalgebras.
Signs are inherent in the various aspects of the immune system which differentiate self from non-self.
People are like a bag of allsorts; we are all different.
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