| | - Asuncion, National University of
- (from the article "Selected universities and colleges of the world") ...figures are high, the dropout rate is also high. More than nine-tenths of the population is literate, though functional literacy is probably lower. The two oldest universities-the public National University of Asuncion (1890) and the private Our Lady of the Assumption Catholic University (1960)-are located in Asuncion, with branches in ...
- Asuncion, Treaty of
- (from the article "Mercosur") ...committed Argentina and Brazil to work toward the establishment of a common market within 10 years, and it invited other Latin American countries to join. Mercosur was created in 1991 by the Treaty of Asuncion, which was signed by the heads of state of Argentina, Brazil, Paraguay, and Uruguay. Several ...
- asura
- in Hindu mythology, class of beings defined by their opposition to the devas or suras (gods). The term asura appears first in the Vedas, a collection of poems and hymns composed 1500-1200 BCE, and refers to a human or divine leader. ... [6 Related Articles]
- Asvaghosa
- philosopher and poet who is considered India's greatest poet before Kalidasa (5th century) and the father of Sanskrit drama; he popularized the style of Sanskrit poetry known as kavya. [5 Related Articles]
- Asvalayana
- author of the Asvalayana-srauta-sutra, Vedic manual of sacrificial ceremonies composed for the use of the class of priests called hotar, or hotr, whose main function was to invoke the gods. Belonging to the "forest tradition" of hermits and wandering holy men rather than to that of the priesthood, Asvalayana is ...
- asvamedha
- grandest of the Vedic religious rites of ancient India, performed by a king to celebrate his paramountcy. The ceremony is described in detail in various Vedic writings, particularly the Satapatha Brahmana. An especially fine stallion was selected and was allowed to roam freely for a year under the protection of ... [3 Related Articles]
- Asvyeyskaye, Lake
- (from the article "Belarus") ...canal, thereby connecting the Baltic and Black seas. The rivers are generally frozen from December to late March, after which occur about two months of maximum flow. The largest lakes are Narach, Asvyeyskaye, and Drysvyaty.
- Aswan
- muhafazah (governorate), Upper Egypt, embracing the Nile River floodplain and immediately adjacent territories. Long and narrow in shape, it is the most southerly Egyptian governorate along the Nile; its short southern boundary forms part of the international frontier with The Sudan. The sandstone, granite, and diorite hills flanking the Nile ... [1 Related Articles]
- Aswan
- city, capital of Aswan muhafazah (governorate), Egypt, on the east bank of the Nile just below the First Cataract. It faces the island of Elephantine (modern Jazirat Aswan), on which stand the ruins of the ancient city of Yeb. Aswan was the southern frontier of pharaonic Egypt. Its local quarries ... [4 Related Articles]
- Aswan Dam
- (from the article "Nile River") The first dam at Aswan was constructed between 1899 and 1902; it has a series of four locks to allow navigation. The dam has twice been enlarged-first between 1908 and 1911 and again between 1929 and 1934-thus raising the water level and increasing the dam's capacity. It is also equipped ...
- Aswan High Dam
- rockfill dam across the Nile River, at Aswan, Egypt, completed in 1970 (and formally inaugurated in January 1971) at a cost of about $1 billion. The dam, 364 feet (111 metres) high, with a crest length of 12,562 feet (3,830 metres) and a volume of 57,940,000 cubic yards (44,300,000 cubic ... [14 Related Articles]
- asylum
- in international law, the protection granted by a state to a foreign citizen against his own state. The person for whom asylum is established has no legal right to demand it, and the sheltering state has no obligation to grant it. [14 Related Articles]
- Asylum Records
- (from the article "Asylum Records") The driving force behind Asylum Records, the musical embodiment of the "Me Decade" (writer Tom Wolfe's characterization of the 1970s), was New York City-born David Geffen, who nurtured most of the major figures in the wave of singer-songwriters who followed Bob Dylan's lead. Having learned the ropes with the William ...
- asymmetric digital subscriber line modem
- (from the article "telephone and telephone system") ...subscriber and the central office (the local loop). These new technologies include high data rate subscriber lines (HDSL), which allow bidirectional data rates of up to 750 kilobits per second, and asymmetric digital subscriber lines (ADSL), which permit half-duplex data transmission at rates up to 6.144 megabits (million bits) per ...
- asymmetric synthesis
- any chemical reaction that affects the structural symmetry in the molecules of a compound, converting the compound into unequal proportions of compounds that differ in the dissymmetry of their structures at the affected centre. Such reactions usually involve organic compounds in which the symmetrical structural feature is a carbon atom ...
- asymmetrical fold
- (from the article "fold") ...on which minor folds are superimposed, and a synclinorium is a large syncline on which minor folds are superimposed. A symmetrical fold (Figure 2) is one in which the axial plane is vertical. An asymmetrical fold (Figure 2) is one in which the axial plane is inclined. An overturned fold, ...
- asymmetrical information
- (from the article "Akerlof, George A.") ...such as a defective car known as a "lemon." In his 1970 seminal work "The Market for Lemons: Quality Uncertainty and the Market Mechanism," Akerlof explained how private or asymmetric information prevents markets from functioning efficiently and examined the consequences. He suggested that many economic institutions had emerged in the ...
- asymmetrical warfare
- (from the article "nuclear strategy") Meanwhile, those on the less-advantaged side of the technological divide continued to develop counterstrategies for asymmetrical warfare, whereby unconventional means might be used to overcome more technically advanced adversaries. In most cases the easiest route was to follow militia-based guerrilla warfare, playing on American memories of the Vietnam War (1954-75) ...
- Asymmetron
- (from the article "amphioxus") ...and resemble small, slender fishes without eyes or definite heads. They are grouped in two genera-Branchiostoma (also called Amphioxus) and Epigonichthyes (also called Asymmetron)-with about two dozen species. The chordate features-the notochord (or stiffening rod), gill slits, and dorsal nerve cord-appear in the larvae and persist into...
- asymmetry
- (from the article "formal logic") ...and the first-i.e., if phi is such that(∀x)(∀y)(phixy ⊃ ~phiyx)-then phi is said to be asymmetrical (example: "is greater than"). A relation that is neither symmetrical nor asymmetrical is said to be nonsymmetrical. Thus phi is nonsymmetrical...
- asymmetry
- (from the article "time") ...of nature are symmetrical if all three reflections are combined: charge, parity, and time reflections forming what can be called (after the initials of the three parameters) a CPT mirror. The time asymmetry was shown in certain abstruse experiments concerning the decay of K mesons that have a short time ...
- asymptote
- (from the article "mathematics") ...of these curves. A sample of the topics he covered includes the following: the relations satisfied by the diameters and tangents of conics (Book I); how hyperbolas are related to their "asymptotes," the lines they approach without ever meeting (Book II); how to draw tangents to given conics (Book II); ...
- asymptotic freedom
- (from the article "subatomic particle") In the early 1970s the American physicists David J. Gross and Frank Wilczek (working together) and H. David Politzer (working independently) discovered that the strong force between quarks becomes weaker at smaller distances and that it becomes stronger as the quarks move apart, thus preventing the separation of an individual ...
- asynchronous pacemaker
- (from the article "pacemaker") The first pacemakers were of a type called asynchronous, or fixed, and they generated regular discharges that overrode the natural pacemaker. The rate of an asynchronous pacemaker may be altered by the physician, but once set it will continue to generate an electric pulse at regular intervals. Most are set ...
- asynchrony
- (from the article "gifted child") ...often suffered from problems such as boredom and rejection by their peers. Variability of development is another characteristic observed in gifted children. In the late 20th century, the term asynchrony was used to describe the developmental characteristics of gifted children; that is, their mental, physical, emotional, and social abilities may ...
- asyndeton
- the omission of the conjunctions that ordinarily join coordinate words or clauses, as in the phrase "I came, I saw, I conquered" or in Matthew Arnold's poem The Scholar Gipsy:Thou hast not lived, why should'st thou perish, so?Thou hadst one aim, one business, one desire; Else wert thou long since ...
- Asyut
- muhafazah (governorate) of Upper Egypt. It lies along the Nile River, between Al-Minya governorate to the north and Sawhaj governorate to the south. Its settled area, which is limited to the river valley, extends almost 100 miles (160 km) along the river and is about 12 miles (19 km) wide. ...
- Asyut
- capital of Asyut muhafazah (governorate) and one of the largest settlements of Upper Egypt. It lies on the west bank of the Nile River, almost midway between Cairo and Aswan. The irrigated Nile River valley is about 12 miles (20 km) wide at this point.
- Asyut Barrage
- (from the article "Asyut") ...inlaid woodwork, and rugs. In addition, there are modern textile mills and a chemical plant producing fertilizer. Just north of the city and its river port of Al-Hamra' is the Asyut Dam across the Nile (1902), an open limestone weir 2,730 feet (832 m) long. It feeds the Al-Ibrahimiyah Canal, ...
- Asyutic
- (from the article "Coptic language") ...these differ from one another chiefly in their sound systems. The Fayyumic dialect of Upper Egypt, spoken along the Nile River valley chiefly on the west bank, survived until the 8th century. Asyutic, or Sub-Akhmimic, spoken around Asyut, flourished in the 4th century. In it are preserved a text of ...
- AT&T Building
- (from the article "Johnson, Philip C.") Johnson's style took a final turn with the New York City American Telephone and Telegraph headquarters (1984; now the Sony building). Designed with a top resembling a Chippendale cabinet, the building was considered by critics to be a landmark in the history of postmodern architecture. Johnson turned explicitly to the ...
- AT&T Corporation
- American corporation that provides long-distance telephone and other telecommunications services. It is a descendant of the American Telephone and Telegraph Company, which built much of the United States' long-distance and local telephone networks, becoming the world's largest corporation and a standard for the telecommunications industry. This firm voluntarily split into ... [11 Related Articles]
- AT&T Park
- (from the article "McCovey, Willie") ...popular with the San Francisco fans and held several public relations positions with the Giants after his retirement. The portion of San Francisco Bay beyond right field in the Giants' home field, AT&T Park, was named McCovey Cove in his honour. He was elected to the Baseball Hall of Fame ...
- AT-1 Snapper
- (from the article "rocket and missile system") The Soviets developed an entire family of antitank guided missiles beginning with the AT-1 Snapper, the AT-2 Swatter, and the AT-3 Sagger. The Sagger, a relatively small missile designed for infantry use on the lines of the original German concept, saw use in Vietnam and was used with conspicuous success ...
- AT-2 Swatter
- (from the article "rocket and missile system") The Soviets developed an entire family of antitank guided missiles beginning with the AT-1 Snapper, the AT-2 Swatter, and the AT-3 Sagger. The Sagger, a relatively small missile designed for infantry use on the lines of the original German concept, saw use in Vietnam and was used with conspicuous success ...
- AT-3 Sagger
- (from the article "rocket and missile system") The Soviets developed an entire family of antitank guided missiles beginning with the AT-1 Snapper, the AT-2 Swatter, and the AT-3 Sagger. The Sagger, a relatively small missile designed for infantry use on the lines of the original German concept, saw use in Vietnam and was used with conspicuous success ...
- AT-6 Spiral
- (from the article "rocket and missile system") ...infantry use on the lines of the original German concept, saw use in Vietnam and was used with conspicuous success by Egyptian infantry in the Suez Canal crossing of the 1973 Arab-Israeli War. The AT-6 Spiral, a Soviet version of TOW and Hellfire, became the principal antiarmour munition of Soviet ...
- At-Bashy Range
- (from the article "Tien Shan") ...feet (3,000 to 4,600 metres), while the elevations of the depressions that separate them vary from 6,000 to 10,500 feet (1,800 to 3,200 metres). The most important ranges are Borkoldoy, Dzhetym, At-Bashy, and the Kakshaal (Kokshaal-Tau) Range, in which Dankova Peak reaches a height of 19,626 feet (5,982 metres).
- ata
- (from the article "Igala") ...people of Nigeria, living on the left bank of the Niger River below its junction with the Benue River. Their language belongs to the Benue-Congo branch of the Niger-Congo family. Their ruler, the ata, traditionally also governed two other groups, the Bassa Nge and the Bass Nkome, who live between ...
- Atabapo River
- (from the article "Orinoco River") ...great meandering curves to its confluence with the Ventuari River. There the river turns to the west to run between high alluvial banks, its course marked by extensive sandbars. Near San Fernando de Atabapo, the Atabapo and Guaviare rivers join the Orinoco, marking the end of the upper Orinoco.
- atabeg
- (from the article "Iran") ...Oxus, where he founded the Khwarezm-Shah dynasty (c. 1077-1231). Regions elsewhere in Iran, on the passing of Seljuq supremacy, became independent under atabegs, who were originally proxy fathers and tutors sent with young Seljuq princes when these were deputed to govern provinces. At first the ...Salghurid dynasty
- Atacama
- extinct South American Indian culture of the Andean desert oases of northern Chile and northwestern Argentina. The last surviving groups of the Atacama have been assimilated by Spanish and Aymara culture. [2 Related Articles]
- Atacama
- region, northern Chile. It is bounded on the east by Argentina and on the west by the Pacific Ocean. Created as a province in 1843 and as a region in 1974, it includes Chanaral, Copiapo, and Huasco provincias and San Felix and San Ambrosio islands, which lie in the Pacific ...
- Atacama Desert
- cool, arid region in northern Chile, 600 to 700 miles (1,000 to 1,100 km) long from north to south. Its limits are not exactly determined, but it lies mainly between the south bend of the Loa River and the mountains separating the Salado-Copiapo drainage basins. To the north, the desert ... [7 Related Articles]
- Atacama Large Millimeter Array
- (from the article "telescope") ...by the United States, Canada, Europe, and Japan in the Atacama Desert in northern Chile at an elevation of more than 5,000 metres (16,000 feet) and is expected to be completed by 2012. The Atacama Large Millimeter Array (ALMA) will consist of fifty 12-metre (39-foot) dishes operating at wavelengths as ...
- Atacama Plateau
- cold, desolate Andean tableland in northwestern Argentina and adjacent regions of Chile. It is about 200 miles (320 km) long (north to south) and 150 miles (240 km) wide and has an average elevation of 11,000 to 13,000 feet (3,300 to 4,000 m). The region may be defined as the ... [3 Related Articles]
- atacamite
- green, brilliant halide mineral, basic copper chloride [Cu2(OH)3Cl]. It is a secondary mineral, formed by the oxidation of other copper minerals, particularly under arid conditions; it is widespread as brittle, transparent to translucent crystals in Atacama Province, Chile; in Boleo, Mex.; and in South Australia. For detailed physical properties, see ...
- atactic polymer
- (from the article "catalysis") ...ethylenic compound, CH2&doublehorzbond;CHR, stereoregular polymerization may yield three different arrangements of the polymer: an isotactic polymer, a syndiotactic polymer, and an atactic polymer. These have the following arrangements of their molecular chains:
structure and propertiesindustrial polymers, chemistry ofOrganometallic catalysis...polymers are referred ...
- Atafu
- coral atoll of Tokelau, a territory of New Zealand in the South Pacific Ocean. It comprises 19 islets that rise to 15 feet (5 metres) above sea level and enclose a lagoon measuring 3 miles (5 km) by 2.5 miles (4 km). Discovered (1765) by British navigator John Byron, who ... [1 Related Articles]
- Atago, Mount
- (from the article "Kyoto") ...taken when the site was selected to protect the northern corners, from which, it was believed, evil spirits could gain access. Thus, Hiei-zan (Mt. Hiei; 2,782 feet) to the northeast and Atago-yama (Mt. Atago; 3,031 feet) to the northwest were considered natural guardians. Hiei-zan especially came to figure prominently between ...
- Atahuallpa
- 13th and last emperor of the Inca, who was victorious in a devastating civil war with his half brother, only to be captured, held for ransom, and then executed by Francisco Pizarro. [8 Related Articles]
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