| | - A band
- (from the article "muscle") ...to be responsible for the movement and force developed during contraction (for the relation of cross bridges to the molecular architecture of thick filaments, see below). In the middle of the ...
- a cappella
- (Italian: "in the church style"), performance of a polyphonic (multipart) musical work by unaccompanied voices. Originally referring to sacred choral music, the term now refers to secular music as well. [1 Related Articles]
- A cell
- (from the article "nervous system") ...strand, the acoustic sensillum, runs from the centre of the tympanic membrane across the tympanic cavity to a nearby skeletal support. This sensillum has two acoustic sensory receptors, called A ...
- a contrario
- (from the article "rhetoric") ...are arguments by example, by analogy, by the consequences, a pari (arguing from similar propositions), a fortiori (arguing from an accepted conclusion to an even more evident one), a contrario ...
- A current
- (from the article "nervous system") Another outward K+ current, occurring with little delay after depolarization, is the A current. IA channels are opened by depolarization following hyperpolarization. By increasing the interval between action potentials, they ...
- A delta fibre
- (from the article "pain") ...of acute pain noted above is mediated by two types of primary afferent nerve fibres that transmit electrical impulses from the tissues to the spinal cord via the ascending nerve ...
- a fortiori
- (from the article "rhetoric") ...analysis of such arguments would require a whole treatise; the best known, however, are arguments by example, by analogy, by the consequences, a pari (arguing from similar propositions), a fortiori ...
- a galletto
- (from the article "Doccia porcelain") ...is often credited to other factories. In the main, Doccia continued, belated by some 30 years, the late Baroque styles of Meissen. Three decorative themes distinguish this Doccia ware: the ...
- A horizon
- (from the article "soil") ...the soil profile (see the figure). Soil horizons are defined by features that reflect soil-forming processes. For instance, the uppermost soil layer (not including surface litter) is termed the A ...
- a la poupee
- (from the article "intaglio") There are two ways of making intaglio prints in varied colours. In the method known as a la poupee (French: "with the doll"), a doll-shaped bundle of fabric is used ...
- a lo divino
- in Spanish literature, the recasting of a secular work as a religious work, or, more generally, a treatment of a secular theme in religious terms through the use of allegory, ...
- A Major Earthquake Shakes China's Sichuan Province
- On May 12, 2008, a magnitude-7.9 earthquake brought enormous devastation to the mountainous central region of Sichuan province in southwestern China. The epicentre was in the city of Wenchuan, and ...
- a pari
- (from the article "rhetoric") ...types of association and dissociation. A detailed analysis of such arguments would require a whole treatise; the best known, however, are arguments by example, by analogy, by the consequences, a ...
- a posteriori distribution
- (from the article "probability theory") This distribution, derived by using Bayes's theorem to combine the a priori distribution with the conditional distribution for the outcome of the experiment, is called the a posteriori distribution.
- a posteriori knowledge
- (from the article "a posteriori knowledge") knowledge derived from experience, as opposed to a priori knowledge (q.v.).major referencea priori knowledge in Western philosophy since the time ...
- a priori distribution
- (from the article "probability theory") ...giving the probability f(r) that the number of red balls is in fact r where f(0) +⋯+ f(N) = 1. This distribution is called an a priori distribution because it is specified prior to ...
- a priori knowledge
- in Western philosophy since the time of Immanuel Kant, knowledge that is independent of all particular experiences, as opposed to a posteriori knowledge, which derives from experience alone. The Latin ... [20 Related Articles]
- A ring
- (from the article "Saturn") ...gap in the major rings. Lying between 1.95 and 2.02 Saturn radii and not devoid of particles, the Cassini division exhibits complicated variations in optical depth, with an average value ...
- a tulipano
- (from the article "Doccia porcelain") ...by some 30 years, the late Baroque styles of Meissen. Three decorative themes distinguish this Doccia ware: the a galletto design, of Chinese origin, consisting of two fighting cocks; the ...
- A&M Records
- (from the article "Sex Pistols, the") ...in December 1976, the group became a national sensation. Scandalized in the tabloid press, the Sex Pistols were dropped by their first record company, EMI, in January 1977; their next ...
- A'a
- (from the article "art and architecture, Oceanic") Perhaps the only surviving example of figure sculpture from Rurutu is one of the most impressive Polynesian sculptures: an image of the god A'a in the act of creating men ...
- A'ishah
- the third and most favoured wife of the Prophet Muhammad (the founder of Islam), who played a role of some political importance after the Prophet's death. [3 Related Articles]
- A'sha, al-
- pre-Islamic poet whose qasidah ("ode") is included by the critic Abu 'Ubaydah (d. 825) in the celebrated Mu'allaqat, a collection of seven pre-Islamic qasidahs, each of which was considered by ... [1 Related Articles]
- A, Operation
- (from the article "World War II") ...to reduce the Mariana Islands, lying 1,000 miles from Enewetak and 3,500 miles from Pearl Harbor. Against this threat, after the destruction at Truk, the Japanese hastily drew up a ...
- A-1
- (from the article "attack aircraft") ...A-20 Havoc, which were armed with 20-millimetre cannons and .30- or .50-inch machine guns. Two other American attack aircraft of the 1940s and '50s were the Douglas B-26 Invader and ...
- A-10A
- (from the article "attack aircraft") ...the Grumman A-6 Intruder, first flown in 1960; the U.S. Navy's McDonnell Douglas A-4 Skyhawk, first flown in 1954; and the Ling-Temco-Vought A-7 Corsair, first flown in 1965. The Fairchild ...
- A-20
- (from the article "attack aircraft") ...monoplanes could endure heavy antiaircraft fire while attacking tanks and troop columns at very close range. The most important types were the Soviet Ilyushin Il-2 Stormovik and the U.S. Douglas ...
- A-4
- (from the article "attack aircraft") After World War II, faster jet aircraft were developed for attack missions. Among the U.S. types were the Grumman A-6 Intruder, first flown in 1960; the U.S. Navy's McDonnell Douglas ...
- A-6 Intruder
- (from the article "attack aircraft") After World War II, faster jet aircraft were developed for attack missions. Among the U.S. types were the Grumman A-6 Intruder, first flown in 1960; the U.S. Navy's McDonnell Douglas ...
- A-7
- (from the article "attack aircraft") ...developed for attack missions. Among the U.S. types were the Grumman A-6 Intruder, first flown in 1960; the U.S. Navy's McDonnell Douglas A-4 Skyhawk, first flown in 1954; and the ...
- a-che-lha-mo
- (from the article "Central Asian arts") ...or to the netherworld when playing the role of a psychopomp, or conductor of souls. Performances of the Buddhist monastic dance, known as 'cham, and the Buddhist morality plays, called ...
- A-DNA
- (from the article "nucleic acid") Several structural variants of DNA are known. In A-DNA, which forms under conditions of high salt concentration and minimal water, the base pairs are tilted and displaced toward the minor ...
- A-frame level
- (from the article "hand tool") The tool for determining horizontal direction is called a level. The Egyptians used an A-frame, on which a plumb line was suspended from the vertex of the A. When the ...
- A-Group culture
- (from the article "Nubia") The region of Lower Nubia, between the first and second Nile cataracts, saw one of the earliest phases of state formation in the world when rulers of the A-Group culture, ...
- A-Hmao
- (from the article "Miao") ...the official Chinese term for four distinct groups of people who are only distantly related through language or culture: the Hmu people of southeast Guizhou, the Qo Xiong people of ...
- A-Hmao language
- (from the article "Hmong-Mien languages") Two original writing systems developed for the Hmong language have enjoyed some success. Between 1904 and 1936 the missionary Samuel Pollard invented the Pollard script for writing A-Hmao, a Hmongic ...
- A-la-shan-yu Ch'i
- (from the article "Kansu") The area within Kansu's jursidiction has undergone several changes since 1950. In 1954 Kansu annexed the province of Ningsia. In 1956 the A-la-shan-yu Ch'i and O-chi-na Ch'i banners in northwestern ...
- A-lo-pen
- (from the article "Xi'an monument") According to the inscription, the Chinese emperor Taizong received the Nestorian Persian monk A-lo-pen in his capital city of Chang'an (modern Xi'an) in 625 and looked with favour upon him ...
- A-mdo
- one of three historical regions of Central Asia (the other two being Dbus-Gtsang and Khams) into which Tibet was once divided. [1 Related Articles]
- A-N transmitting station
- (from the article "radio range") ...a system of radio transmitting stations, each of which transmits a signal that not only carries identification but also is of intrinsic value to a navigator in fixing his position. ...
- A-scan
- (from the article "ultrasonics") ...the internal organs. In the B-scan mode, a linear array of transducers is used to scan a plane in the body, and the resultant data is displayed on a television ...
- A-type star
- (from the article "Space densities of stars") ...lines of ionized helium appear in the spectra. Class B stars typically range from 10,000 K to 25,000 K and are also bluish white but show neutral helium lines. The ...
- A.C. Nielsen Company
- (from the article "Nielsen, A.C.") ...interests at an early age. In 1918 he graduated from the University of Wisconsin and then worked briefly as an engineer. In 1923, with the financial backing of his fraternity ...
- A.M.
- (from the article "dictionary") ...taken from the Latin-English dictionary by Thomas Thomas, Dictionarium linguae Latinae et Anglicanae (1588). But the third source is most remarkable. In 1599 a Dutchman known only as A.M. translated ...
- A.O. Smith Research Building
- (from the article "building construction") ...all-glass curtain wall, which was only on a single street facade, was that of the Hallidie Building (1918) in San Francisco. The first multistory structure with a full glass curtain ...
- A.S. Abell Company
- (from the article "Baltimore Sun, The") ...Sun papers have always provided outstanding war coverage, particularly in World War II. The Sun newspapers, together with their corporate owner, the A.S. Abell Company, were bought ...
- A.V. Roe and Company, Ltd.
- (from the article "Roe, Sir Alliott Verdon") Roe founded A.V. Roe and Company, Ltd., with his brother Humphrey in 1910. Of his early planes, the Avro 504 was the most successful: more than 17,000 were manufactured. It ...
- A300
- (from the article "Airbus Industrie") The A300 was developed to fill the market niche for a short- to medium-range, high-capacity aircraft. It was the first wide-body jetliner to be equipped with only two engines for ...
- A310
- (from the article "Airbus Industrie") ...Lines entered into a leasing arrangement for the aircraft. A second boost for Airbus came in 1978, when it launched a program to develop a smaller-capacity, medium-range plane. That aircraft, ...
- A320
- (from the article "aerospace industry") ...a two-pilot cockpit (in which the duties of a third crew member, the flight engineer, were performed by computers) and extensive use of composite materials for the airframe. Its third ...
- A380
- (from the article "Business Overview") Boeing's delay came almost simultaneously with Airbus's delivery of its first A380 superjumbo jetliner after it had endured two years of production delays and gone $6.8 billion over budget. Airbus, ...
- aa
- (from the article "lava") Mafic (ferromagnesian, dark-coloured) lavas such as basalt characteristically form flows known by the Hawaiian names pahoehoe and aa (or a'a). Pahoehoe lava flows are characterized by smooth, gently undulating, or ...
- AA-1 Alkali
- (from the article "rocket and missile system") The Soviets fielded an extended series of air-to-air missiles, beginning in the 1960s with the AA-1 Alkali, a relatively primitive semiactive radar missile, the AA-2 Atoll, an infrared missile closely ...
- AA-10 Alamo
- (from the article "rocket and missile system") ...The Foxhound/Amos combination may have been fitted with a look-down/shoot-down capability, enabling it to engage low-flying targets while looking downward against a cluttered radar background. The AA-10 Alamo, a medium-range ...
- AA-11 Archer
- (from the article "rocket and missile system") ...a medium-range missile similar to the Amos, apparently had passive radar guidance designed to home onto carrier-wave emissions from U.S. aircraft firing the semiactive radar-homing Sparrow. The AA-11 Archer was ...
- AA-2 Atoll
- (from the article "rocket and missile system") The Soviets fielded an extended series of air-to-air missiles, beginning in the 1960s with the AA-1 Alkali, a relatively primitive semiactive radar missile, the AA-2 Atoll, an infrared missile closely ...
- AA-3 Anab
- (from the article "rocket and missile system") ...air-to-air missiles, beginning in the 1960s with the AA-1 Alkali, a relatively primitive semiactive radar missile, the AA-2 Atoll, an infrared missile closely modeled after the Sidewinder, and the AA-3 ...
- AA-5 Ash
- (from the article "rocket and missile system") ...radar missile, the AA-2 Atoll, an infrared missile closely modeled after the Sidewinder, and the AA-3 Anab, a long-range, semiactive radar-homing missile carried by air-defense fighters. The AA-5 Ash was ...
- AA-6 Acrid
- (from the article "rocket and missile system") ...modeled after the Sidewinder, and the AA-3 Anab, a long-range, semiactive radar-homing missile carried by air-defense fighters. The AA-5 Ash was a large, medium-range radar-guided missile, while the AA-6 Acrid ...
- AA-7 Apex
- (from the article "rocket and missile system") ...radar-homing missile carried by air-defense fighters. The AA-5 Ash was a large, medium-range radar-guided missile, while the AA-6 Acrid was similar to the Anab but larger and with greater range. ...
- AA-8 Aphid
- (from the article "rocket and missile system") ...fighters. The AA-5 Ash was a large, medium-range radar-guided missile, while the AA-6 Acrid was similar to the Anab but larger and with greater range. The AA-7 Apex, a Sparrow ...
- AA-9 Amos
- (from the article "rocket and missile system") ...use, were introduced during the 1970s. Both used semiactive radar guidance, though the Aphid was apparently produced in an infrared-homing version as well. The long-range, semiactive radar-guided AA-9 Amos appeared ...
- AAA similarity theorem
- (from the article "Euclidean geometry") The similarity theorem may be reformulated as the AAA (angle-angle-angle) similarity theorem: two triangles have their corresponding angles equal if and only if their corresponding sides are proportional. Two similar ...
- Aachen
- city, North Rhine-Westphalia Land (state), western Germany. Its municipal boundaries coincide on the west with the frontiers of Belgium and The Netherlands. It was a royal residence ... [6 Related Articles]
- Aachen Cathedral
- (from the article "Aachen") ...principal coronation site of Holy Roman emperors and of German kings from the Middle Ages to the Reformation. The Palatine Chapel, a masterpiece of Carolingian architecture, is incorporated within Aachen ...
- Aachen Rule for Canons
- (from the article "Gregory VII, Saint") ...some of the discussions in Rome at the time of the great Lateran Council of April/May 1059. Much of the text comprises an address to the assembly in which Hildebrand ...
- Aachen, Council of
- (from the article "Louis I") ...of his last years when he had asked the leaders of his empire, "Are we indeed Christians?" The answer to that question furnished Louis with a platform for a reform ...
- Aachen, Hans von
- (from the article "Mannerism") ...northern Europe around mid-century through large numbers of engravings of Italian paintings and through the visits of northern artists to Rome to study. Bartholomaeus Spranger, Hendrik Goltzius, and Hans von ...
- Aakjaer, Jeppe
- poet and novelist, leading exponent of Danish regional literature and of the literature of social consciousness.
- Aalen
- city, Baden-Wurttemberg Land (state), southern Germany, on the Kocher River, at the northern foot of the Schwabische Alb (Swabian Alps), 30 miles (48 km) north of Ulm. It originated around ...
- Aalenian Stage
- lowest of the four divisions of the Middle Jurassic Series, representing all rocks formed worldwide during the Aalenian Age, which occurred between 175.6 million and 171.6 million years ago during ...
- Aaliyah
- American rhythm and blues singer and actress (b. Jan. 16, 1979, Brooklyn, N.Y.-d. Aug. 25, 2001, Abaco Islands, The Bahamas), was considered on the verge of superstardom after the success ...
- Aalsmeer
- gemeente (municipality), western Netherlands, 8 miles (13 km) southwest of Amsterdam, on the Ring Canal and Westeinder Lake, a remnant of Haarlem Lake. The older part of the town is ...
- Aalst
- municipality, Flanders Region, north-central Belgium, on the Dender River, 15 miles (24 km) northwest of Brussels. The town hall (begun in the middle of the 12th century), with its 52-bell ...
- Aalto, Aino
- (from the article "Aalto, Alvar") ...in central Finland. In 1927 he moved his office to Turku, where he worked in association with Erik Bryggman until 1933, the year in which he moved to Helsinki. In ...
- Aalto, Alvar
- Finnish architect, city planner, and furniture designer whose international reputation rests on a distinctive blend of modernist refinement, indigenous materials, and personal expression in form and detail. His mature style ... [4 Related Articles]
- Aapravasi Ghat
- (from the article "Port Louis") ...In the late 1990s there was considerable development in Port Louis, including the addition of shops, restaurants, entertainment venues, and lodging in the city's Caudan Waterfront area. Nearby is Aapravasi ...
- Aarau
- capital of Aargau canton, northern Switzerland, at the southern foot of the Jura Mountains, on the right bank of the Aare River, west of Zurich. Founded about 1240 by the ...
- aardvark
- stocky African mammal found south of the Sahara Desert in savanna and semiarid areas. The name aardvark-Afrikaans for "earth pig"-refers to its piglike face and burrowing habits. The aardvark weighs ... [4 Related Articles]
- aardwolf
- insectivorous carnivore that resembles a small striped hyena. The shy, mainly nocturnal aardwolf lives on the arid plains of Africa. There are two geographically separate populations, one centred in South ... [2 Related Articles]
- Aare Massif
- (from the article "mountain") ...Switzerland and France, and displacement on ramp overthrusts beneath the front of the Alps has elevated several crystalline massifs, including the Belledonne and Mont Blanc massifs in France and the ...
- Aare River
- tributary of the Rhine and the longest stream (183 miles [295 km]) entirely within Switzerland; it drains an area of 6,865 square miles (17,779 square km). The river rises in ...
- Aargau
- canton, northern Switzerland. It borders Germany to the north and is bounded by the demicanton of Basel-Landschaft and by the cantons of Solothurn and Bern to the west, Lucerne to ... [2 Related Articles]
- Aargau
- (from the article "Swiss literature") ...with German literature as a whole. Some of the best poets have expressed themselves both in High German and in their dialect. Thus, Adolf Frey published a volume of poems ...
- Aaron
- the traditional founder and head of the Jewish priesthood, who, with his brother Moses, led the Israelites out of Egypt. The figure of Aaron as it is now found in ... [6 Related Articles]
- Aaron
- (from the article "Titus Andronicus") ...it with the stumps of her hands, to reveal the names of her ravishers. Titus now emerges as the revenger who must bring Tamora's brutal family to account. Tamora takes ...
- Aaron ben Elijah
- theologian of Constantinople (now Istanbul), the only scholar to seek a philosophical basis for Karaite beliefs. Karaism, a Jewish movement originating in 8th-century Iran, rejected the oral tradition and challenged ...
- Aaron ben Meir
- (from the article "Sa'adia ben Joseph") In 921 Sa'adia, who by then had attained scholarly prominence, headed the Babylonian Jewish scholars in their conflict with the Palestinian scholar Aaron ben Meir, who had promulgated a far-reaching ...
- Aaron ben Moses ben Asher
- (from the article "biblical literature") ...of that system was the production of the model so-called Aleppo Codex, now in Jerusalem. Written by Solomon ben Buya'a, it was corrected, punctuated, and furnished with a Masoretic apparatus ...
- Aaron's-beard
- (from the article "Saint-John's-wort") About 370 species, both temperate and tropical, belong to the genus Hypericum. Aaron's-beard (H. calycinum; see photograph), sometimes known as rose of Sharon, and H. patulum are both shrubby, East ...
- Aaron, Hank
- American professional baseball player who, during 23 seasons in the major leagues (1954-76), surpassed batting records set by some of the greatest hitters in the game, including Babe Ruth, Ty ... [3 Related Articles]
- Aaronic benediction
- (from the article "benediction") a verbal blessing of persons or things, commonly applied to invocations pronounced in God's name by a priest or minister, usually at the conclusion of a religious service. The Aaronic ...
- Aaronic priesthood
- (from the article "Aaronic priesthood") in the Church of Jesus Christ of Latter-day Saints, the lesser of the two categories of priests, concerned principally with church finances and administration. See Mormon.organization of Mormon society
- Aaronite
- (from the article "Judaism") ...tent housing the ark in which rested the stone "Tablets of the Covenant." When journeying, the sacred objects were carried and guarded by the Levite tribe or clan, whose rivals, ...
- Aas, Roald
- (from the article "Grishin, Yevgeny") ...his performance at the 1960 Games in Squaw Valley, California, U.S., matching his world record in the 500-metre race, as well as sharing the gold in the 1,500-metre race, this ...
- Aasen, Ivar
- language scholar and dialectologist, who created the written standard of Nynorsk (New Norwegian), one of the two official languages of Norway. [2 Related Articles]
- AAUW Educational Foundation
- (from the article "American Association of University Women") ...the AAUW recognized lobbying as a powerful tool for change. The organization's earliest lobbying efforts, for example, helped establish the U.S. Department of Education. In 1958 the AAUW created the ...
- AAUW Legal Advocacy Fund
- (from the article "American Association of University Women") ...During the 1990s the Foundation placed an emphasis on increasing the diversity of their membership and awarding fellowships to women from ethnic and racial minority groups. The AAUW established its ...
- ab ovo
- in literature, the practice of beginning a poetic narrative at the earliest possible chronological point. The Latin poet and critic Horace approvingly notes in Ars poetica that Homer does not ...
- Aba
- city, Abia state, southern Nigeria. It lies along the west bank of the Aba River, at the intersection of roads from Port Harcourt, Owerri, Umuahia, Ikot Ekpene, and Ikot Abasi ...
- Aba Novak, Vilmos
- painter and printmaker who was one of the most original and controversial talents in modern Hungarian painting.
|
|