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 ...

Receiver functions derived from teleseismic body waves recorded by ocean-bottom seismometers on the southern East Pacific Rise reveal shear waves converted from compressional waves at the mantle discontinuities near 410- and 660-kilometer depth. The thickness of the mantle transition zone between the two discontinuities is normal relative to the global average and indicates that upwelling benea...

Ezra Black, S t e p h e n Eubank, Hidek i Kashioka A T R I n t e r p r e t i n g T e l e c o m m u n i c a t i o n s Labora to r i e s 2-2 Hikar idai Seilm-cho, So raku-gun Kyoto, Japan 619-02 black@air, i~l. co. jp kashioka@a~r, itl. co. jp eub~-~@atr, itl. c o . jp David M a g e r m a n Renaissance Technologies Corp . 25 East Loop Road, Suite 211 Stony Brook , IVY 11776 U S A magermau~rencec,...

The 660-kilometer discontinuity, which separates Earth's upper and lower mantle, has been detected routinely on a global scale in underside reflections of precursors to SS shear waves. Here, we report observations of this discontinuity in many different regions, using precursors to compressional PP waves. The apparent absence of such precursors in previous studies had posed major problems for m...