With the B cell, one of the two main types of white blood cell, essential parts of the immune system. T cells originate in the bone marrow, mature in the thymus, and travel in the blood to other lymphoid tissues, such as the spleen, tonsil...

The British soldier and author Thomas Edward Lawrence (1888-1935), known as Lawrence of Arabia, coordinated the Arab Revolt against the Turks with British military operations. He became a legendary figure, and it is difficult to assess his...

(1894–1971), Chinese Nationalist government official. Better known to Westerners as T. V. Soong, Song Ziwen was an official of the Chinese Nationalist government and a prominent financier. He was born in 1894 and educated at Harvard...

On the basis of his picture-perfect looks, Tab Hunter became a teenage idol and a leading man of the 1950s. Tall, blond, tan, and athletically built, he was called "Golden Boy" by the press. It was then-powerful agent Henry W...

Logical symbols are part of a modern logical system for expressing rational thought and common patterns of reasoning. These symbols are used to clearly represent often times highly complex logical relationships between statements. There ar...

publication usually issued daily, weekly, or at other regular times that provides news, views, features, and other information of public interest and that often carries advertising. Forerunners of the modern newspaper include the Acta diur...

Prohibition against touching, saying, or doing something for fear of immediate harm from a supernatural force. The term is of Polynesian origin and was first noted by Capt. James Cook during his 1771 visit to Tonga, but taboos have been pr...

Tabulating machines, or punched card machines, were the earliest automated data processing devices. They include keypunch machines, collators, sorters, reproducers, and tabulators. By the late 1980s, virtually all tabulating machines had b...

Tadao Ando (born 1941) is one of the most renowned contemporary Japanese architects. His designs are often compared to those of Louis Kahn and Le Corbusier and obviously take some inspiration from their work. Characteristics of his work in...

(born &circa; 1300, Florence—died 1366?, Florence) Italian painter active in Florence. He was the son of a painter and mosaicist and a student of Giotto. His best-known works are frescoes in the church of Santa Croce in Florence. He ...

Tadeusz Andrzej Bonawentura Kosciuszko (1746-1817) was a Polish patriot and a hero in the American Revolution. Tadeusz Kosciuszko was born on Feb. 12, 1746, in the grand duchy of Lithuania, Poland. A member of the small-gentry class, Kosci...

The T'aebaek Mountain range in the eastern part of the Korean peninsula is part of the geological "backbone" of the region. This range runs parallel to the coast from Kangwon Province in the north and through North Kyo...

Wang Kon (877-943) was the founder of the Korean Koryo dynasty and a descendant of a powerful clan at Songdo which controlled maritime trade on the Yesong River. The legends of his ancestors and his rise to power bespeak the clan's intimat...

Taejonggyo (the Religion of the Divine Progenitor; sometimes spelled Daejonggyo) was founded by Na Ch'ol (1863–1916) in 1901, a time when Christian missionaries were challenging the traditional religious beliefs and practices...

(1900–01) Successful trial in Britain of a suit brought by the Taff Vale Railway Company against the Amalgamated Society of Railway Servants (ASRS). In August 1900 the ASRS struck for higher wages but settled within two weeks when th...

United States 1947 The Taft-Hartley Act was characterized by labor unions at the time of its passage as "the slave-labor law," and many of its congressional proponents thought that the law would inhibit the power of labor un...

ancient and distinctive Chinese form of exercise or attack and defense that is popular throughout the world. As exercise, tai chi chuan is designed to provide relaxation in the process of body-conditioning exercise and is drawn from the pr...

Tai Shan (Mount Tai) is located in central Shandong Province, China, to the north of the town of Tai'an. The main peak, Jade Emperor, is 1,545 meters (5,069 feet) above sea level. Mount Tai is a tilted fault-block mountain with extr...

in Chinese philosophy, the eternal source and cause of all reality. In the Book of Changes (I Ching), the ancient philosophical text in which the concept is first mentioned, T'ai Chi is the source and union of the two primary aspects of th...

Refers to the water stored on-site to wash ore and receive waste tailings as a residue. This provides both a water supply and a sediment trap. Two serious environmental problems ensue. The water leaches out metals and other dangerous eleme...

City (pop., 2005 est.: 754,917), southwestern Taiwan. It is one of the oldest urban settlements on the island. The Han Chinese settled there as early as 1590. The Dutch arrived in the city in 1623 and stayed until they were driven out in 1...

TAIPING ("great peace" or "great equity") denotes a pan-Chinese social ideal and utopian slogan of rebels and dynasty founders. Ping ("level, balanced, just, harmonious"), daping ("great pea...

Japan's Taisho period (1912–1926) was the period of the reign of the Taisho emperor, the son and successor of the Meiji emperor, during whose reign Japan had ended its long isolation from most of the rest of the world and beg...

The relations between the Republic of China (Taiwan) and the United States can be divided into three historical stages. The first was the period of the civil war between China's Communists and the Nationalists; the second was the pe...

(born Jan. 8, 1890, Haining, Zhejiang province, China—died March 17, 1947, Shanghai) Chinese Buddhist monk and philosopher. After training as a Buddhist monk near Ningbo, he helped organize the Association for the Advancement of Budd...