Heterotrich
Any member of the ciliated protozoan order Heterotrichida. Complete ciliation is typical, although there is a tendency toward loss of the cilia, which are minute, hairlike processes, in several families (Peritromidae, Licnophoridae). Heterotrichs are considered the most primitive of the subclass Spirotrichia because of their uniform ciliation.
Theiler, Max
Theiler received his medical training at St. Thomas's Hospital, London, and the London School of Hygiene and Tropical Medicine, graduating in 1922. In that year he joined the department
Aerobatics
Maneuvers in which an aircraft is flown under precise control in unusual attitudes (the position of an aircraft determined by the relationship between its axes and a reference such as the horizon). A myriad of aerobatic maneuvers exist, some of the better-known being rolls, loops, stall turns (hammerheads), and tailslides. The term aerobatics came into use in early 1914 after
Pacific Ocean, Submarine hydrocarbons
Deposits of oil and gas under the seafloor are the most valuable and sought-after fuels of the modern world economy. Shallow seas and small ocean basins, such as the South and East China seas, are thought to have a high potential for large reserves. Among the countries bordering the Pacific Ocean and its marginal seas, the proportion of production from submarine reserves
New York, Emergence of political divisions
During the 1780s an organization, eventually to be known
Loren, Sophia
Before working in the cinema, Sofia Scicolone changed her name to Sofia Lazzaro for work in the foto-romanzo, popular pulp magazines that used still photographs
Argentina, Resources
Argentine industry is well served by the country's abundance of energy resources. By the late 20th century the country was self-sufficient in fossil fuels and hydroelectric generation, and it had become a petroleum exporter. Oil deposits are scattered throughout the country. The basin around the Patagonian port of Comodoro Rivadavia is estimated to hold some two-thirds
Tachylyte
Also spelled �tachylite� glassy igneous rocks low in silica, such as basalt or diabase. Tachylytes are black with a pitchlike or resinous lustre; in thin sections they are characteristically brown and translucent, and the glass is crowded with granules of magnetite. Tachylytes are found only under conditions that imply rapid cooling, and they are much less common than are the corresponding
Amos
The little that is known about Amos' life has been gleaned from his book, which was, in all likelihood, partly
Sexual-predator Law
Statute that mandates lengthy periods of preventive detention for habitual sexual offenders and sexual psychopaths beyond their criminal sentences. Sexual-predator laws became popular in the United States in the 1990s, and their passage raised constitutional questions about double jeopardy and the balancing of the rights of offenders against those of the wider
D'urfey, Thomas
Patronized by King Charles II, whom he entertained as a jester
Amphibian, Habitat
Because of their diverse reproductive and feeding strategies as well as their structural and functional adaptations, amphibians are found in deserts, swamps, lowland tropical rain forests, and above the tree line in high mountain areas. The three orders of living amphibians all contain species that have independently made transitions from aquatic to terrestrial
Gonz�lez De Mendoza, Pedro, Cardinal
Mendoza, the fifth son of the poet I�igo L�pez de Mendoza, marqu�s de Santillana, studied at the University of Salamanca. After serving as chaplain to King John II, he
Szent-gy�rgyi, Albert
Szent-Gy�rgyi earned a medical degree from the University of Budapest in 1917. He became interested
Music
In 1994 several pioneers of free improvisation were especially newsworthy. Anthony Braxton (see BIOGRAPHIES) was one of two jazz artists to receive a MacArthur Foundation fellowship during the year. Only a fraction of his music had been documented on recordings, so the appearance of Composition No. 96 (Leo), played by an orchestra directed by Braxton, was welcome even if it
Turdidae
Members range in size from 11.5 to 33 centimetres (4.5 to 13 inches) long. They have slender bills and stout legs and feet, the lower leg smooth rather than scaly. Included
North Germanic Languages, Vocabulary
The everyday stock of Scandinavian words, including most of the high-frequency words, is Indo-European and Germanic in its core. Of the 200,000 or more entries in the large dictionaries of each language, the vast majority are either compounds and derivatives of the simpler words or else borrowings from other languages - mostly of a scientific and cultural nature. At the end
Stein, Johann Andreas
The son of an organ builder, Stein apprenticed with the famous instrument maker Johann Andreas Silbermann in 1748 - 49. For a time he evidently lived in Paris, but he was most active in Augsburg,
Epictetus
His original name is not known; epiktetos is the Greek word meaning �acquired.� As a boy he was a slave but managed to attend lectures
Turing Machine
Hypothetical computing device introduced in 1936 by the English mathematician and logician Alan M. Turing. Turing originally conceived the machine as a mathematical tool that could infallibly recognize undecidable propositions - i.e., those mathematical statements that, within a given formal axiom system, cannot be shown to be either true or false. (The mathematician
National Academy Of Sciences
In 1916 the academy established
Gatlinburg
City, Sevier county, eastern Tennessee, U.S. It lies about 30 miles (50 km) southeast of Knoxville, at the northwestern entrance to Great Smoky Mountains National Park. English and Scotch-Irish settlers began to arrive along the Little Pigeon River about 1795; by 1835 the settlement was called White Oak Flats. It was renamed in 1860 for Radford Gatlin, who opened a store there in 1855. In an American
Bruegel, Jan, The Elder
The second son of Pieter Bruegel the Elder, born just before his father's death, he was reared by a grandmother and learned his art in Antwerp. In his youth, he went to Italy, where he painted under the patronage of Cardinal Federigo Borromeo, and later, in 1610, he was
Black Bart
Born in New York state, he served in the American Civil War and
Foreman, George
Foreman grew up in Houston, Texas, and learned to box in a U.S. Job Corps camp in Oregon. At the 1968 Olympic Games in Mexico City, he won the gold medal in the heavyweight boxing competition.
Main Range
Also called �Central Range�, or �Buffalo Range� mountain range in West Malaysia, the most prominent mountain group on the Malay Peninsula. Composed of granite with some patches of altered stratified rocks, the range extends southward for 300 miles (480 km) from the Thai border, with elevations rarely less than 3,000 feet (900 m) and some peaks exceeding 7,000 feet (2,100 m; high point Mount Korbu [Kerbau], or Buffalo Mountain, 7,162 feet [2,183 m]). The heavily forested
Gall, Saint
Educated at the monastery of Bangor (in present-day North Down district, N.Ire.), Gall became a disciple of St. Columban and joined him on a mission to France. When Columban proceeded to Italy, Gall remained with the semipagan Alemanni,
Lorain, John
Lorain apparently went to the North American colony of Maryland when he was a child. After managing a farm there for many years; he moved in 1795 to
Etruscan Language
The Etruscans lived in Italy in the region of modern Tuscany, in an
