The University of Richmond recently held a repatriation ceremony to return a collection of ancient pre-Hispanic artifacts to ...

The most advanced way that we communicate, through the written word, is something that animals simply can’t do at all. This brings up the question, how long have humans been abl ...

Note in lead V5 rhythm strip how the amplitude of the QRS complexes vary, however not beat to beat as would be seen in electrical alternans. This variation can occur with the respiratory cycle as ...