Seismic waves that traverse Earth's inner core along north-south paths produce unusually broad pulse shapes at long periods (compared with waves along east-west paths) and reflections from below the inner core boundary at short periods. The observations provide compelling evidence for a seismic velocity discontinuity along north-south paths about 200 kilometers below the inner core boundary sep...

The definition of a secured zone is presented, updating RFC 2535. The new definition has consequences that alter the interpretation of the NXT record, obsolete NULL keys, and the designation of "experimentally secure."

Here's how it would work. You would be asked, in a computerized exhibit, to choose your favorite actor or a character in a specific Shakespearean scene. Then, a filmed image of the character or actor you chose would appear on a large wall screen and begin addressing his or her lines directly to you. When your turn to speak comes, all you would then do is to read out the lines scrolling by at th...

Adult subventricular zone neurogenesis is an important process in most mammals. However, whether it persists in humans is highly debated. Recent work by Sanai and colleagues provides a major step in settling this debate. Using histological approaches, they demonstrated an active subventricular zone with limited neurogenesis in humans as well as discovered a new migratory route.

– We analyzed skins and skulls of chevrotains (Moschiola sp., Artiodactyla) from Sri Lanka and India, and found considerable differences within this taxon. Based on the consistency of these differences we concluded that this taxon can be divided into three species: Moschiola indica from southern India, M. meminna from the Dry Zone in Sri Lanka, and M. kathygre n. sp. from Sri Lanka’s Wet Zone. ...

This paper explores the liturgical use of the organ in the sixteenth century according to the judgments of Tommaso de Vio, Cajetan (1469–1534) and the Dominicans. In particular, it asks the question: In worship, is solo organ music capable of conveying a specific meaning or a particular text (as seemed to be expected in alternatim practice)? The Dominican sources show an increasingly skeptical ...