Ecosystem

The principles underlying the study of ecosystems are based on the view that all the elements of a life-supporting environment of any size, whether natural or man-made, are parts of an integral network in which each element interacts directly

Ear, Human, Analysis of sound by the auditory nervous system

Evidence of orderly spatial representations of the organ of Corti at the lower levels of the auditory pathway has been reported by many investigators. These patterns seem to be in accord with the place theory of the cochlear analysis of sound. Physiological evidence of tuning of the auditory system also has been obtained by recording with the electrical potentials

Piciform

Fossil species of the order Piciformes are almost unknown. Many avian fossils identified long ago are in need of verification, including the early fossil “woodpeckers,” some of which are now believed to belong in other orders. Fossil woodpeckers are now known only from the Pliocene Epoch (about 6,000,000 years ago). Except for a single specimen from the middle Miocene of Bavaria

Theatre, Western

For a discussion of drama as a literary form, see dramatic literature, and the articles on individual national literatures. For detailed information on the arts of theatrical performance and stagecraft, see theatre, directing, acting, and theatrical production.

Saint Albans, Henry Jermyn, Earl Of, 1st Baron Jermyn Of Saint Edmundsbury

He entered Parliament in 1625. In Henrietta Maria's household he was made vice chamberlain (1628), master of horse (1639), and lord chamberlain (1645), and he was raised to the peerage in 1643. He was implicated in the army plot of 1641, in

Auerbach, Erich

After gaining a doctorate in philology at the University of Greifswald, Germany, in 1921, Auerbach served as librarian for the Prussian State Library. From 1927 to 1947 he was professor of Romance philology at the University of Marburg in Germany and at the Turkish State University

Cabrillo, Juan Rodríguez

Virtually nothing is known of Cabrillo's early life, though he might have been born in Portugal. As a young man, he appears to have accompanied the Spanish soldier Pánfilo de Narváez (1520) in his unsuccessful punitive expedition against

Yamantaka

In northern Buddhism, one of the eight fierce protective deities. See dharmapala.