monoplacophoran, (class Tryblidia), any of a group of primitive marine mollusks characterized by a single, cap-shaped shell and bilateral symmetry. The term Tryblidia is preferred over Monoplacophoran and Galeroconcha, because both latter terms are taken to include several fossil groups of

Dan Andersson: …Efterskörd (1929; “Late Harvest”) and Tryckt och otryckt (1942; “Printed and Unprinted”).

hand tool: Plane: …long, a long-bodied trying, or jointing, plane having a length of about 76 cm (30 inches) was needed to remove large curves in the wood. Short planes—a common length was about 23 cm (9 inches)—were called smoothing planes for the final finish they produced.

You’ve thought long and hard about the pros and cons of buying a business franchise, and you’ve decided that it’s what you want to do. You figure you have the time, business savvy, and you’re pretty sure you have the capital (and courage!) to get started. So, what’s next? Not only are there

John Irving: The Hotel New Hampshire, A Prayer for Owen Meany, and The Cider House Rules: His collection Trying to Save Piggy Sneed—which includes short stories and essays—and his autobiography, The Imaginary Girlfriend, were both published in 1996. My Movie Business (1999) details Irving’s experiences in adapting his novels to the screen.

Danbury: …the British under Major General William Tryon. Danbury is now a manufacturing city. Its products include optical equipment, ball bearings, pharmaceuticals, and machinery, and it is the location of the corporate headquarters of Union Carbide Corporation, a major manufacturer of petrochemicals. Danbury once was known for its hat industry, begun…

acriflavine, dye obtained from coal tar, introduced as an antiseptic in 1912 by the German medical-research worker Paul Ehrlich and used extensively in World War I to kill the parasites that cause sleeping sickness. The hydrochloride and the less irritating base, neutral acriflavine, both are

chemotherapy: …1903 Ehrlich invented a dye, trypan red, which was the first drug to show activity against trypanosomal infections in mice. Ehrlich’s greatest triumph, however, was the discovery (1910) of the organic arsenical drug Salvarsan, which proved to be effective in the treatment of syphilis. The discovery of other chemotherapeutic agents…

flatworm: Annotated classification: Order Trypanorhyncha Scolex with 2 or 4 bothridia; vitellaria in continuous sleevelike distribution; parasites of elasmobranchs; about 115 species. Order Pseudophyllidea Scolex with 2 elongated, shallow bothria, 1 dorsal and 1 ventral; genital pore lateral or median. Vitellaria lateral or extending across proglottid and encircling other…

trypanosome, any member of a genus (Trypanosoma) of parasitic zooflagellate protozoans belonging to the order Kinetoplastida. Adult trypanosomes are mainly blood parasites of vertebrates, especially fishes, birds, and mammals. Most species require an intermediate host (often an insect or a leech)

protozoan: Protozoans and disease: …produced by two subspecies of Trypanosoma brucei—namely, T. brucei gambiense and T. brucei rhodesiense. The life cycle of T. brucei has two hosts: a human (or other mammal) and the bloodsucking tsetse fly, which transmits the parasite between humans.

sleeping sickness: …infection with the flagellate protozoan Trypanosoma brucei gambiense or the closely related subspecies T. brucei rhodesiense, transmitted by the tsetse fly (genus Glossina). Sleeping sickness is characterized by two stages of illness. In the first stage, infected persons typically experience fever, headache, muscle and joint

sleeping sickness: … or the closely related subspecies T. brucei rhodesiense, transmitted by the tsetse fly (genus Glossina). Sleeping sickness is characterized by two stages of illness. In the first stage, infected persons typically experience fever, headache, muscle and joint pain, and inflammation of the lymph nodes

antiprotozoal drug: Trypanosoma cruzi, the causative agent of Chagas’ disease, is treated with nifurtimox, a nitrofuran derivative. It is given orally and results in the production of activated forms of oxygen, which are lethal to the parasite. Other forms of trypanosomiasis (African trypanosomiasis, or sleeping sickness) are…

sleeping sickness: …infection with the flagellate protozoan Trypanosoma brucei gambiense or the closely related subspecies T. brucei rhodesiense, transmitted by the tsetse fly (genus Glossina). Sleeping sickness is characterized by two stages of illness. In the first stage, infected persons typically experience fever, headache, muscle and joint

sleeping sickness: … or the closely related subspecies T. brucei rhodesiense, transmitted by the tsetse fly (genus Glossina). Sleeping sickness is characterized by two stages of illness. In the first stage, infected persons typically experience fever, headache, muscle and joint pain, and inflammation of the lymph nodes

trypanosome, any member of a genus (Trypanosoma) of parasitic zooflagellate protozoans belonging to the order Kinetoplastida. Adult trypanosomes are mainly blood parasites of vertebrates, especially fishes, birds, and mammals. Most species require an intermediate host (often an insect or a leech)

trypanosomiasis, infectious disease in both humans and animals caused by certain members of the flagellate protozoa genus Trypanosoma (family Trypanosomatidae) and spread by certain bloodsucking insects. The life cycle of trypanosomes includes a stage spent in blood or other tissues of a vertebrate

fungus: Annotated classification: Order Trypetheliales (incertae sedis; not placed in any subclass) Forms lichen; most have hyaline ascospores. Class Eurotiomycetes Parasitic on animals, saprotrophic in soil; small, evanescent asci, found at various levels within spherical ascocarp; includes subclasses Chaetothyriomycetidae, Eurotiomycetidae, and

fruit fly: Insects of the family Trypetidae are often referred to as large fruit flies, and those of the Drosophilidae as small fruit flies or vinegar flies. (See vinegar fly.)

classical scholarship: Grammar and language study: Under Augustus, Tryphon studied the language of prose and made the first study of syntax, the first vocabulary of the written language, and a classification of the so-called figures of speech. About the same time Didymus, known as Chalkenteros (“Brazen-Gutted”), incorporated into huge variorum editions much of…

Trypillya culture, Neolithic European culture that arose in Ukraine between the Seret and Bug rivers, with extensions south into modern-day Romania and Moldova and east to the Dnieper River, in the 5th millennium bc. The culture’s characteristic pottery was red or orange and was decorated with

Trypillya culture, Neolithic European culture that arose in Ukraine between the Seret and Bug rivers, with extensions south into modern-day Romania and Moldova and east to the Dnieper River, in the 5th millennium bc. The culture’s characteristic pottery was red or orange and was decorated with

biochemistry: Digestion: Pepsin and trypsin, the proteolytic enzymes of gastric and pancreatic juice, respectively, continue to be intensively investigated.

enterokinase: …changes the inactive pancreatic secretion trypsinogen into trypsin, one of the enzymes that digest proteins. Enterokinase is believed to be produced by the glands of Brunner in the membrane lining of the duodenum. It resists destruction from the various enzymes in the small intestine but is destroyed by bacteria in…

tryptophan, an amino acid that is nutritionally important and occurs in small amounts in proteins. It is an essential amino acid, meaning that humans and certain other animals cannot synthesize it and must obtain it from their diets. Infants require greater amounts of tryptophan than adults to

iminoglycinuria: …specific amino acids include the tryptophan malabsorption syndrome (or “blue diaper syndrome”), and the methionine malabsorption syndrome (or “oasthouse urine disease”). They are characterized by poor absorption of the amino acids tryptophan and methionine, respectively, from the small intestine. For other hereditary disorders of amino acid transport, see also cystinuria;…

Sweden: Drainage: The longest, however, is the Klar-Göta River, which rises in Norway and flows 447 miles (719 km), reaching Lake Väner (Vänern) and continuing southward out of the lake’s southern end to the North Sea; along its southernmost course are the famous falls of Trollhättan. The Muonio and Torne rivers form…

Poland: Poland in the 21st century: …with Warsaw’s popular liberal mayor, Rafał Trzaskowski. Duda sought to capitalize on a cordial meeting with U.S. Pres. Donald Trump in February and, among other issues, took a strong stance against LGBTQ rights and same-sex marriage; Trzaskowski, a vocal advocate of LGBTQ rights, accused Duda of fomenting hate. The two…

Aleksander Fredro: His memoir, Trzy po trzy (1880; “Topsy Turvy Talk”), is written in the picaresque manner of Laurence Sterne. Rendering scenes from the Napoleonic Wars matter-of-factly and often humorously, it is considered to be one of the most brilliant Polish prose works.

tennessine (Ts), artificially produced transuranium element of atomic number 117. In 2010 Russian and American scientists announced the production of six atoms of tennessine, which were formed when 22 milligrams of berkelium-249 were bombarded with atoms of calcium-48, at the cyclotron at the Joint

Cai Lun was a Chinese court official who is traditionally credited with the invention of paper. Cai Lun was a eunuch who entered the service of the imperial palace in 75 ce and was made chief eunuch under the emperor Hedi (reigned 88–105/106) of the Dong (Eastern) Han dynasty in the year 89. About

China: Yuan’s attempts to become emperor: Cai E (Ts’ai O; a disciple of Liang Qichao) and by the governor of Yunnan, Tang Jiyao (T’ang Chi-yao). Joined by Li Liejun (Li Lieh-chün) and other revolutionary generals, they established the National Protection Army (Huguojun) and demanded that Yuan cancel his plan. When he would not,…

Caishen, in Chinese religion, the popular god (or gods) of wealth, widely believed to bestow on his devotees the riches carried about by his attendants. During the two-week New Year celebration, incense is burned in Caishen’s temple (especially on the fifth day of the first lunar month), and

Chinese calligraphy: It was said that Cangjie, the legendary inventor of Chinese writing, got his ideas from observing animals’ footprints and birds’ claw marks on the sand as well as other natural phenomena. He then started to work out simple images from what he conceived as representing different objects such as…

Cangzhou, city, eastern Hebei sheng (province), northeastern China. It is situated on the low-lying coastal plain about 60 miles (100 km) south of Tianjin on the Grand Canal and on the Beijing-Shanghai railway. The coastal plain there is very low, and in historical times the coastline was much

Cao Zhan was the author of Hongloumeng (Dream of the Red Chamber), generally considered China’s greatest novel. A partly autobiographical work, it is written in the vernacular and describes in lingering detail the decline of the powerful Jia family and the ill-fated love between Baoyu and his

Cao Zhi was one of China’s greatest lyric poets and the son of the famous general Cao Cao. Cao Zhi was born at the time his father was assuming command over the northern third of China, later known as the Wei kingdom. In a family of poets—the verses of Cao Cao and Cao Pi (Cao Zhi’s older brother

Cao Guojiu, in Chinese mythology, one of the Baxian, the Eight Immortals of Daoism. Cao is sometimes depicted in official robes and hat and carrying a tablet indicative of his rank and of his right to palace audiences. He was a man of exemplary character who often reminded a dissolute brother that

Cao Pi was the founder of the short-lived Wei dynasty (ad 220–265/266) during the Sanguo (Three Kingdoms) period of Chinese history. The son of the great general and warlord Cao Cao of the Han dynasty (206 bc–ad 220), Cao Pi succeeded his father as king of Wei upon the latter’s death in 220. At the

Cao Cao was one of the greatest of the generals at the end of the Han dynasty (206 bce–220 ce) of China. Cao’s father was the adopted son of the chief eunuch of the imperial court. Cao was initially a minor garrison commander and rose to prominence as a general when he suppressed the Yellow Turban

Cao Yu was a Chinese playwright who was a pioneer in huaju (“word drama”), a genre influenced by Western theatre rather than traditional Chinese drama (which is usually sung). Wan Jiabao was educated at Nankai University in Tianjin and Qinghua University in Beijing, where he studied contemporary

caoshu, in Chinese calligraphy, a cursive variant of the standard Chinese scripts lishu and kaishu and their semicursive derivative xingshu. The script developed during the Han dynasty (206 bc–ad 220), and it had its period of greatest growth during the Tang dynasty (618–907). In caoshu the number

Sōtō, largest of the Zen Buddhist sects in Japan. It follows the method of quiet sitting and meditation (zazen) as a means of obtaining enlightenment. The sect was founded in China in the 9th century by Liang-chieh and Pen-chi, where it was known as Ts’ao-tung (after its monastic centres on the

Cen Shen was one of the celebrated poets of the Tang dynasty (618–907) of China. Because of the decline of his aristocratic family, Cen had to rely upon his literary skill to secure government appointment through the examination system. During the 750s he held several assignments in the Central

Cen Shen was one of the celebrated poets of the Tang dynasty (618–907) of China. Because of the decline of his aristocratic family, Cen had to rely upon his literary skill to secure government appointment through the examination system. During the 750s he held several assignments in the Central

Jiaozuo, city, northern Henan sheng (province), China. It lies in the foothills at the southern end of the Taihang Mountains, to the west of Xinxiang, in a mining district. Jiaozuo was originally two villages under the administration of Xiuwu county. Exploitation of the villages’ rich coal

cun, in Chinese painting, brushstrokes or dabs that give texture, or surface, to the pictorial elements. The Chinese artist does not strive for illusionistic modeling that is dependent upon the manipulation of light and shade; rather, after the forms are outlined, texture strokes are used to give

cong, Chinese jade form begun in the late Neolithic Period, it diminished after the Shang (18th–12th century bc) and Zhou (1111–256/255 bc) dynasties. A hollow cylinder or truncated cone enclosed in a rectangular body, the cong varies in proportion from squat to quite tall. The outer flat surfaces

Transportation Security Administration (TSA), U.S. agency created following the September 11, 2001, terrorist attacks that is mandated with developing and implementing policies to ensure the safety of the nation’s transportation systems. It was established by the Aviation and Transportation

Lawrence Rhodes: …at the New York University Tisch School of the Arts, where he eventually became chairman of the dance department. From 1989 to 1999 he was artistic director of Les Grands Ballets Canadiens. In 2002 Rhodes became artistic director of the Juilliard School’s dance division; he held the post until 2017.

zaju, one of the major forms of Chinese drama. The style originated as a short variety play in North China during the Northern Song dynasty (960–1127), and during the Yuan dynasty (1206–1368) it developed into a mature four-act dramatic form, in which songs alternate with dialogue. The zaju, or

Mongolia: Agriculture, forestry, and fishing: The Tsaatan keep small herds of reindeer in the northern part of the country.

Tsáchila, Indian people of the Pacific coast of Ecuador. They live in the tropical lowlands of the northwest, where, along with the neighbouring Chachi, they are the last remaining aboriginal group. The Tsáchila are linguistically related to the Chachi, although their Chibchan languages are

tzaddiq, one who embodies the religious ideals of Judaism. In the Bible, a tzaddiq is a just or righteous man (Genesis 6:9), who, if a ruler, rules justly or righteously (II Samuel 23:3) and who takes joy in justice (Proverbs 21:15). The Talmud (compendium of Jewish law, lore, and commentary)

tzaddiq, one who embodies the religious ideals of Judaism. In the Bible, a tzaddiq is a just or righteous man (Genesis 6:9), who, if a ruler, rules justly or righteously (II Samuel 23:3) and who takes joy in justice (Proverbs 21:15). The Talmud (compendium of Jewish law, lore, and commentary)

Gobi: Geology: …during the 1990s at the Tsagaan Agui (White Cave) in southwest-central Mongolia have produced artifacts up to 35,000 years old.

Chagatai was the second son of Genghis Khan who, at his father’s death, received Kashgaria (now the southern part of Uygur Autonomous Region of Xinjiang, China) and most of Transoxania between the Amu Darya and the Syr Darya (ancient Oxus and Jaxartes rivers, respectively) as his vassal kingdom.

Tsai Ing-wen is an educator and politician who was the first female president of Taiwan (2016–24). Tsai, who is of Hakka descent, is one of nine children born to a wealthy business family. She spent her early childhood in coastal southern Taiwan before going to Taipei, where she completed her

Qaidam Basin, northeastern section of the Plateau of Tibet, occupying the northwestern part of Qinghai province, western China. The basin is bounded on the south by the towering Kunlun Mountains—with many peaks in the western part exceeding 20,000 feet (6,000 meters) above sea level—and on the

Greece: Philikí Etaireía: Athanasios Tsakalov—had little vision of the shape of the independent Greece they sought beyond the liberation of the motherland.

Caucasian languages: The Lezgian languages: … (about 12,000); Rutul (about 15,000); Tsakhur (about 11,000); Archi (fewer than 1,000); Kryz (about 6,000); Budukh (about 2,000); Khinalug (about 1,500); and Udi (about 3,700). The majority of Lezgi languages are spoken in southern Dagestan, but some of them (Kryz, Budukh, Khinalug, Udi) are spoken chiefly in Azerbaijan; and one…

Greek language: Local dialects: Of the local dialects, Tsakonian, spoken in certain mountain villages in eastern Peloponnese, is quite aberrant and shows evidence of descent from the ancient Doric dialect (e.g., it often has an /a/ sound for the early Greek /ā/ that went to /ē/ in Attic, later to /i/). The Asia…

Cherokee, North American people of Iroquoian lineage who constituted one of the largest politically integrated tribes at the time of European colonization of the Americas. Their name is derived from a Muscogee word meaning “people of different speech”; many prefer to be known as Keetoowah or

Cherokee language, North American Indian language, a member of the Iroquoian family, spoken by the Cherokee (Tsalagi) people originally inhabiting Virginia, West Virginia, North Carolina, South Carolina, Georgia, Alabama, Kentucky, and Tennessee. Cherokee was one of the first American Indian

Cherokee: Dealings with the early United States: Native Americans’ first newspaper, the Cherokee Phoenix, began publication in February 1828.

Zhanjiang, city and major port, southwestern Guangdong sheng (province), China. It is located on Zhanjiang Bay on the eastern side of the Leizhou Peninsula, where it is protected by Naozhou and Donghai islands. Originally Zhanjiang was a minor fishing port in the area dominated by the city of

John Ross was a Cherokee chief who, after devoting his life to resisting U.S. seizure of his people’s lands in Georgia, was forced to assume the painful task of shepherding the Cherokees in their removal to the Oklahoma Territory. Born of a Scottish father and a mother who was part Cherokee, the

Donald Tsang is a politician in Hong Kong and was the second chief executive of the Hong Kong Special Administrative Region (SAR) of China (2005–12). Tsang grew up in Hong Kong. He joined the Hong Kong Civil Service in 1967. Over the years he gained experience in many sectors of the government,

Donald Tsang is a politician in Hong Kong and was the second chief executive of the Hong Kong Special Administrative Region (SAR) of China (2005–12). Tsang grew up in Hong Kong. He joined the Hong Kong Civil Service in 1967. Over the years he gained experience in many sectors of the government,

Donald Tsang is a politician in Hong Kong and was the second chief executive of the Hong Kong Special Administrative Region (SAR) of China (2005–12). Tsang grew up in Hong Kong. He joined the Hong Kong Civil Service in 1967. Over the years he gained experience in many sectors of the government,

major river of Central and South Asia. It flows some 1,800 miles (2,900 km) from its source in the Himalayas to its confluence with the Ganges (Ganga) River, after which the mingled waters of the two rivers empty into the Bay of Bengal. Along its course the Brahmaputra passes through the Tibet

Aleksandŭr Tsankov was a politician, who served as the prime minister of Bulgaria (1923–26) during years of great domestic unrest and violence. Tsankov studied law at Sofia University, where in 1910 he became professor of economics. Originally a social democrat, he had by 1922 moved considerably to

Bulgaria: The principality: The Liberal Party, under Dragan Tsankov, Petko Karavelov (the brother of Lyuben Karavelov), and Petko Slaveikov, dominated the assembly and created a constitution that was one of the most democratic in Europe. It provided for a single National Assembly elected by universal male suffrage, guarantees of civil rights, and…

headhunting: …skin with hot sand, thus shrinking it to the size of the head of a small monkey but preserving the features intact. There, again, headhunting was probably associated with cannibalism in a ceremonial form.

Zao Jun, in Chinese religion, the “Furnace Prince” whose magical powers of alchemy produced gold dinnerware that conferred immortality on the diner. The Han-dynasty emperor Wudi was reportedly duped by Li Shaojun, a self-styled mystic, into believing that this new deity was capable of conferring

Zao Shen, in Chinese religion, the Kitchen God (literally, “god of the hearth”), who is believed to report to the celestial gods on family conduct and to have it within his power to bestow poverty or riches on individual families. Because he is also a protector of the home from evil spirits, his

Zaozhuang, city, southern Shandong sheng (province), eastern China. The city includes an extensive area on the western flank of the southwestern spur of the Shandong Hills, to the east of the Grand Canal, that contains one of the most important coal-mining districts of eastern China. The coal

tsar, title associated primarily with rulers of Russia. The term tsar, a form of the ancient Roman imperial title caesar, generated a series of derivatives in Russian: tsaritsa, a tsar’s wife, or tsarina; tsarevich, his son; tsarevna, his daughter; and tsesarevich, his eldest son and heir apparent

percussion instrument: Idiophones: …the Tsar Kolokol III (Emperor Bell III; 1733–35) of Moscow, weighing about 180,000 kg (400,000 pounds), proved too cumbersome and heavy for hanging. The hemispheric form was abandoned early as chimes became larger, culminating in tower-borne carillons brought into existence by progress in casting methods and mechanization. Chime bells…

Tsar Bomba, Soviet thermonuclear bomb that was detonated in a test over Novaya Zemlya island in the Arctic Ocean on October 30, 1961. The largest nuclear weapon ever set off, it produced the most powerful human-made explosion ever recorded. The bomb was built in 1961 by a group of Soviet physicists

Moscow: The Kremlin of Moscow: Nearby is the Tsar Cannon, cast in 1586. Beside the gun are located the mid-17th-century Cathedral of the Twelve Apostles and the adjoining Patriarchal Palace.

percussion instrument: Idiophones: …the Tsar Kolokol III (Emperor Bell III; 1733–35) of Moscow, weighing about 180,000 kg (400,000 pounds), proved too cumbersome and heavy for hanging. The hemispheric form was abandoned early as chimes became larger, culminating in tower-borne carillons brought into existence by progress in casting methods and mechanization. Chime bells…

Antsiran̈ana: …is dominated by the forested Tsaratanana Massif, which includes the highest mountain in the country, Maromokotra Peak (9,436 feet [2,876 metres]). Most of the people of the region live in the lowlands along the east and west coasts, and a road runs along each coast. The Ankara caves south of…

tsar, title associated primarily with rulers of Russia. The term tsar, a form of the ancient Roman imperial title caesar, generated a series of derivatives in Russian: tsaritsa, a tsar’s wife, or tsarina; tsarevich, his son; tsarevna, his daughter; and tsesarevich, his eldest son and heir apparent

St. Petersburg: Admiralty Side: …into the Neva lies the Field of Mars, one of the city’s beautiful open spaces. Begun under Peter (when it was known as the Field of Amusement), it was intended for popular festivities and fireworks. It was a favourite haunt of the 18th-century nobility, but its present name derives from…

James Winkfield: …in Russia and the “Tsarist Triple Crown”—the Moscow, St. Petersburg, and Warsaw derbies—and he was the 1904 Russian national riding champion. Beginning in 1909, he rode in Austria and Germany for a Polish prince and a German baron, notably winning the 1909 Grosser Preis von Baden in Germany. In…

Volgograd, city and administrative centre of Volgograd oblast (region), southwestern Russia, on the Volga River. It was founded as the fortress of Tsaritsyn in 1589 to protect newly acquired Russian territory along the Volga. During the Russian Civil War (1918–20), Joseph Stalin organized the

Boston: Development of the contemporary city: The surviving suspect, Dzhokhar Tsarnaev, was apprehended by police in the wake of a manhunt that brought the Greater Boston area to an unprecedented standstill.

Boston Marathon bombing of 2013: The manhunt: During the gun battle, 26-year-old Tamerlan Tsarnaev, identified as one of the two suspects in the bombing, was seriously wounded by explosives and multiple gunshots. He was apprehended by police, but he was further injured when the second suspect—his younger brother, Dzhokhar Tsarnaev—struck him with a car as he fled…

Pushkin, suburban town and administrative raion (district) of St. Petersburg, northwestern European Russia, 14 miles (22 km) south of the city of St. Petersburg. Tsarskoye Selo grew up around one of the main summer palaces of the Russian royal family. Catherine I commissioned the palace (1717–23);

Leo Tolstoy: Conversion and religious beliefs: …Tsarstvo bozhiye vnutri vas (1893; The Kingdom of God Is Within You) and many other essays and tracts. In brief, Tolstoy rejected all the sacraments, all miracles, the Holy Trinity, the immortality of the soul, and many other tenets of traditional religion, all of which he regarded as obfuscations of…

Kurgan, city and administrative centre of Kurgan oblast (region), west-central Russia, on the Tobol River. In 1553 the fortified settlement of Tsaryovo Gorodishche was founded on a large ancient tumulus or artificial mound (Russian kurgan); it became a town in 1782, and by the late 19th century it

Tsáchila, Indian people of the Pacific coast of Ecuador. They live in the tropical lowlands of the northwest, where, along with the neighbouring Chachi, they are the last remaining aboriginal group. The Tsáchila are linguistically related to the Chachi, although their Chibchan languages are

Tsavo National Park, national park, southeastern Kenya, east of Mount Kilimanjaro. The largest (8,036 square miles [20,812 square km]) of Kenya’s national parks, it was established in 1948. Later that year, for administrative purposes, the park was divided into two smaller units: Tsavo East and

Vancouver: The contemporary city: In 2009 the Tsawwassen people initiated through their economic development corporation a project to construct an industrial park in the suburb of Delta, just south of Vancouver, on their lands abutting the Strait of Georgia. First Nations workers from the entire metropolitan area were to be employed in…

tuberous sclerosis, autosomal dominant disorder marked by the formation of widespread benign tumors throughout the body. This disease has a well-established molecular link, which stems from defects or mutations in either of two genes—TSC1 or TSC2—that cause uncontrolled cell growth. Eighty percent

Toxic Substances Control Act (TSCA), a law passed by the Congress of the United States in 1976 that authorizes the Environmental Protection Agency (EPA) to regulate or limit the production, importation, distribution, use, and disposal of chemical compounds found to be or suspected of being harmful

Pyotr Ilyich Tchaikovsky was the most popular Russian composer of all time. His music has always had great appeal for the general public in virtue of its tuneful, open-hearted melodies, impressive harmonies, and colorful, picturesque orchestration, all of which evoke a profound emotional response.

chimpanzee: Taxonomy: troglodytes are recognized: the tschego, or Central African chimpanzee (P. troglodytes troglodytes), also known as the common chimpanzee in continental Europe; the West African, or masked, chimpanzee (P. troglodytes verus), known as the common chimpanzee in Great Britain; the East African, or long-haired, chimpanzee (P. troglodytes schweinfurthii); and the…