angiosperm: Annotated classification: Basalmost angiosperms The first three groups listed below are those that appear at the base of the angiosperm tree, although the relationships among them are still somewhat unclear. Claims of having identified the “most basal” living angiosperm have been put forth and emended repeatedly, but…

basalt, extrusive igneous (volcanic) rock that is low in silica content, dark in colour, and comparatively rich in iron and magnesium. Some basalts are quite glassy (tachylytes), and many are very fine-grained and compact. It is more usual, however, for them to exhibit porphyritic structure, with

basaltes ware, hard black vitreous stoneware, named after the volcanic rock basalt and manufactured by Josiah Wedgwood at Etruria, Staffordshire, Eng., from about 1768. Wedgwood’s black basaltes ware was an improvement on the stained earthenware known as “Egyptian black” made by other Staffordshire

basaltes ware, hard black vitreous stoneware, named after the volcanic rock basalt and manufactured by Josiah Wedgwood at Etruria, Staffordshire, Eng., from about 1768. Wedgwood’s black basaltes ware was an improvement on the stained earthenware known as “Egyptian black” made by other Staffordshire

meteorite: Achondrites: …subdivided into cumulate eucrites and basaltic eucrites. Cumulate eucrites are like terrestrial gabbros in that they seem to have formed at depth in Vesta and crystallized quite slowly. By contrast, basaltic eucrites are similar to terrestrial basalts, apparently having formed at or near Vesta’s surface and cooled relatively fast. The…

lava: … (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 broadly hummocky surfaces. The liquid lava flowing beneath a thin, still-plastic crust drags and wrinkles it into tapestry-like folds and rolls…

igneous rock: Origin of magmas: Basaltic magmas that form the oceanic crust of Earth are generated in the asthenosphere at a depth of about 70 kilometres. The mantle rocks located at depths from about 70 to 200 kilometres are believed to exist at temperatures slightly above their melting point, and…

Jonas Basanavičius was a physician, folklorist, and a leader of the Lithuanian national movement. In 1873 Basanavičius went to Moscow to study history and archaeology but after a year changed to medicine. He was graduated in 1879 and spent most of the next 25 years practicing medicine in Bulgaria.

basanite, extrusive igneous rock that contains calcium-rich plagioclase feldspar (usually labradorite or bytownite), feldspathoid (usually nepheline or leucite), olivine, and pyroxene (titanaugite). Basanite grades into tephrite, which contains no olivine. In basanites and tephrites, the

Manuel de Godoy was a Spanish royal favourite and twice prime minister, whose disastrous foreign policy contributed to a series of misfortunes and defeats that culminated in the abdication of King Charles IV and the occupation of Spain by the armies of Napoleon Bonaparte. Born into an old but poor

Vasant Panchami, Hindu festival that celebrates the onset of spring in India. The term vasant means “spring” in Hindi, and since the festival is observed on the fifth day (panchami) of the season, it is named Vasant Panchami. The day is usually marked by people dressing in yellow and worshipping

Walachia: Basarab I (reigned c. 1330–52) defeated the Hungarian king Charles Robert in 1330 and secured Walachian independence.

Matthew Basarab was an enlightened prince of Walachia (in present Romania) whose reign (1632–54) was marked by cultural development and advances in government. A last scion of the ancient Basarab dynasty, Matthew spent much of his reign combating the designs of the rival prince of Moldavia, Basil

Matthew Basarab was an enlightened prince of Walachia (in present Romania) whose reign (1632–54) was marked by cultural development and advances in government. A last scion of the ancient Basarab dynasty, Matthew spent much of his reign combating the designs of the rival prince of Moldavia, Basil

Michael was a Romanian national hero, prince of Walachia, who briefly united much of the future national patrimony under his rule. Acceding to the princely throne of Walachia in 1593, Michael submitted in May 1595 to the suzerainty of the prince of Transylvania, Sigismund Báthory, in order to

Bessarabia, region in eastern Europe that passed successively, from the 15th to 20th century, to Moldavia, the Ottoman Empire, Russia, Romania, the Soviet Union, and Ukraine and Moldova. It is bounded by the Prut River on the west, the Dniester River on the north and east, the Black Sea on the

Senegal: Ethnic groups: …often wealthy landowners; and the Basari, an ancient people who are found in the rocky highlands of Fouta Djallon.

San, an indigenous people of southern Africa, related to the Khoekhoe (Khoikhoi). They live chiefly in Botswana, Namibia, and southeastern Angola. Bushmen is an Anglicization of boesman, the Dutch and Afrikaner name for them; saan (plural) or saa (singular) is the Nama word for “bush dweller(s),”

Arslān al-Muẓaffar al-Basāsīrī was an Islamic military leader. Al-Basāsīrī was born a Turkish slave, and his activities were first mentioned about 1025. At the time, the weakened ʿAbbāsid caliphs at Baghdad, who represented Sunnite Islām, were under continuous pressure from the Fāṭimid caliphs of

Basava was a Hindu religious reformer, teacher, theologian, and administrator of the royal treasury of the Kalachuri-dynasty king Bijjala I (reigned 1156–67). Basava is the subject of the Basava-purana, one of the sacred texts of the Hindu Lingayat sect. According to South Indian oral tradition, he

Basava: …is the subject of the Basava-purana, one of the sacred texts of the Hindu Lingayat sect.

Basavan was an outstanding Mughal painter, renowned as a superb colourist and as a sensitive observer of human nature. His name indicates that he may have been a member of the Ahir, or cow-herding caste, in the region of modern Uttar Pradesh. He was most active between about 1580 and 1600, and his

Beslan school attack: …by the notorious rebel warlord Shamil Basayev, who previously had been blamed for the takeover of a Moscow theatre in 2002 that ended in the deaths of some 130 hostages; the assassination of Akhmad Kadyrov, the pro-Moscow president of Chechnya, in May 2004; and countless other acts of terrorism and…

Krk: …of Croatian influence, comes the Baška Tablet (Bašćanska Ploča), which was found on the island. It is a stone monument inscribed with Glagolitic script, one of the old Slav alphabets and a cornerstone of Croatian literary development. Ruled by Venice until 1797, Krk then passed to Austria, which held it…

sphygmomanometer: …in 1881 by Austrian physician Karl Samuel Ritter von Basch. Von Basch introduced the aneroid manometer, which uses a round dial that provides a pressure reading. The pressure is indicated by a needle, which is deflected by air from an inflation device (e.g., a diaphragm or Bourdon tube).

Matteo (serafini) Da Bascio was the founder of the Order of Friars Minor Capuchin, commonly called Capuchins, the chief order of friars among the permanent offshoots of the Franciscans. After entering the Observant Franciscans about 1511 at Montefalcone, Matteo was ordained priest about 1520. Eager

Florence Bascom was an educator and geological survey scientist who is considered to be the first American woman geologist. Bascom earned bachelor’s and master’s degrees at the University of Wisconsin, and she later received the first Ph.D. awarded to a woman at Johns Hopkins University, Baltimore

William R. Bascom was an American anthropologist who was one of the first to do extensive fieldwork in West Africa. He served as chairman (1956–57) of the anthropology department and acting director of African studies (1953, 1957) at Northwestern University, Evanston, Ill. After completing a period

William R. Bascom was an American anthropologist who was one of the first to do extensive fieldwork in West Africa. He served as chairman (1956–57) of the anthropology department and acting director of African studies (1953, 1957) at Northwestern University, Evanston, Ill. After completing a period

movable bridge: >drawbridge, or bascule, is the best known; it may be single- or double-leafed. It originated in medieval Europe, probably Normandy, as a defensive feature of castles and towns. It was operated by a counterweight and winch. The drawbridge that formed one span of Old London…

baseball: Play of the game: …diamond, which has four white bases, one on each corner. The bases are 90 feet (27.4 meters) apart.

nucleic acid: Basic structure: …four of five possible nitrogen-containing bases: adenine (A), guanine (G), cytosine (C), thymine (T), and uracil (U). A and G are categorized as purines, and C, T, and U are collectively called

brilliant cut: …girdle and those of the pavilion (below the girdle) an angle of 41°, the maximum amount of light entering the crown will be reflected back through the crown by the pavilion, and the diamond will possess its maximum brilliance and a high degree of fire.

semiconductor device: Bipolar transistors: …central n region is the base, and the p region is the collector. The circuit arrangement in Figure 4B is known as a common-base configuration. The arrows indicate the directions of current flow under normal operating conditions—namely, the emitter-base junction is forward-biased and the base-collector junction is reverse-biased. The complementary…

base, in mathematics, an arbitrarily chosen whole number greater than 1 in terms of which any number can be expressed as a sum of that base raised to various powers. The decimal number system that is commonly used expresses all numbers in base 10. For example, 354.76 = (3 × 102) + (5 × 101) + (4 ×

order: …the lowest part of the base. Atop the plinth and forming the remainder of the base are one or more circular moldings that have varying profiles; these may include a torus (a convex molding that is semicircular in profile), a scotia (with a concave profile), and one or more fillets,…

prisoner’s base, children’s game in which players of one team seek to tag and imprison players of the other team who venture out of their home territory, or base. Under the name of barres, this game is mentioned in 14th-century French writings and may have been one of the most popular games in

agricultural technology: Primary tillage equipment: …the soil is called the bottom or base; it is composed of the share, the landside, and the moldboard.

base, in chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators (e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base catalysis). Examples of bases are the hydroxides of

liberation theology: History: …build this church, they established communidades de base, (“base communities”), which were local Christian groups, composed of 10 to 30 members each, that studied the Bible and attempted to meet their parishioners’ immediate needs for food, water, sewage disposal, and electricity. A great number of base communities, led mostly by…

road: Pavement: The base course provides the required supplement to the strength, stiffness, and durability of the natural formation. Its thickness ranges from 4 inches (10 cm) for very light traffic and a good natural formation to more than 40 inches (100 cm) for heavy traffic and a…

base excision repair, pathway by which cells repair damaged DNA during DNA replication. Base excision repair helps ensure that mutations are not incorporated into DNA as it is copied. Single bases of DNA (adenine, cytosine, guanine, and thymine) are susceptible to damage by spontaneous alkylation

runoff: …entirely of groundwater is termed base flow, or fair-weather runoff, and it occurs where a stream channel intersects the water table.

baselevel, in hydrology and geomorphology, limit below which a stream cannot erode. Upon entering a still body of water, a stream’s velocity is checked and thus it loses its eroding power; hence, the approximate level of the surface of the still water body is the stream’s baselevel. If a stream

automotive ceramics: Catalytic converter substrates: …are either platinum-group metals or base metals such as chromium, nickel, and copper. In base-metal catalysts the active surfaces are actually ceramic oxides of the metals. Because platinum metals are extremely expensive, they are deposited on ceramic catalyst supports as salts and then reduced to finely divided metal particles.

base, in mathematics, an arbitrarily chosen whole number greater than 1 in terms of which any number can be expressed as a sum of that base raised to various powers. The decimal number system that is commonly used expresses all numbers in base 10. For example, 354.76 = (3 × 102) + (5 × 101) + (4 ×

bottom of the pyramid (BOP), term in economics that refers to the poorest two-thirds of the economic human pyramid, a group of more than four billion people living in abject poverty. More broadly, BOP refers to a market-based model of economic development that promises to simultaneously alleviate

Rickey Henderson: …Babe Ruth’s lifetime record for bases on balls (walks). When Ruth retired from baseball in 1935, he had 2,062 bases on balls, a testament to his ability to judge pitches and intimidate pitchers, and it was thought that the record would never be broken. Ted Williams (with 2,019) had been…

base pair, in molecular biology, two complementary nitrogenous molecules that are connected by hydrogen bonds. Base pairs are found in double-stranded DNA and RNA, where the bonds between them connect the two strands, making the double-stranded structures possible. Base pairs themselves are formed

chemical compound: Mass spectrometry: …spectrum is known as the base peak, and its intensity is arbitrarily set at a value of 100. The peak at m/z= 72 is the molecular ion and as such gives the molecular mass of the molecule. In high-resolution mass spectrometry, the mass of the molecular ion can be measured…

baseball: Advancing base runners and scoring: …plays in baseball is the stolen base. A base runner may advance at his own risk on the bases at any time the ball is in play by stealing a base. To steal a base, a batter will take a “lead”—that is, advance a few steps off the base and…

point mutation, change within a gene in which one base pair in the DNA sequence is altered. Point mutations are frequently the result of mistakes made during DNA replication, although modification of DNA, such as through exposure to X-rays or to ultraviolet radiation, also can induce point

decimal system, in mathematics, positional numeral system employing 10 as the base and requiring 10 different numerals, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. It also requires a dot (decimal point) to represent decimal fractions. In this scheme, the numerals used in denoting a number take

numerals and numeral systems: Number bases: …is otherwise combined with the duodecimal, or base 12, system.

binary number system, in mathematics, positional numeral system employing 2 as the base and so requiring only two different symbols for its digits, 0 and 1, instead of the usual 10 different symbols needed in the decimal system. The numbers from 0 to 10 are thus in binary 0, 1, 10, 11, 100, 101,

numerals and numeral systems: Number bases: …with the decimal or the vigesimal system, where the base is 20. Similarly, the pure base six scale seems to occur only sparsely in northwest Africa and is otherwise combined with the duodecimal, or base 12, system.

numerals and numeral systems: Number bases: The quinary scale, or number system with base five, is very old, but in pure form it seems to be used at present only by speakers of Saraveca, a South American Arawakan language; elsewhere it is combined with the decimal or the vigesimal system, where the…

mathematics: The numeral system and arithmetic operations: …the base of 60 (sexagesimal). The reasons for the choice of 60 are obscure, but one good mathematical reason might have been the existence of so many divisors (2, 3, 4, and 5, and some multiples) of the base, which would have greatly facilitated the operation of division. For…

mutation: …to single base pairs, called base-pair substitutions. Many of these substitute an incorrect amino acid in the corresponding position in the encoded protein, and of these a large proportion result in altered protein function. Some base-pair substitutions produce a stop codon. Normally, when a stop codon occurs at the end…

Doris Kearns Goodwin: …consultant for Ken Burns’s documentary Baseball (1994).

baseball, pocket-billiards game, named for the similarity in its scoring system to the American game played with bat and ball, in which players attempt to score runs by pocketing 21 consecutively numbered object balls, the number of runs scored corresponding to the total of the numbers on the balls

baseball, game played with a bat, a ball, and gloves between two teams of nine players each on a field with four white bases laid out in a diamond (i.e., a square oriented so that its diagonal line is vertical). Teams alternate positions as batters (offense) and fielders (defense), exchanging

baseball: The ball and bat: The ball has a cork-and-rubber core, around which yarn is tightly wrapped; the cover consists of two snugly fitted pieces of white leather sewn together. The circumference is 9 to 9.25 inches (23 to 23.5 cm) and the weight between 5 and 5.25 ounces (142 and…

sabermetrics: Bill James and the advent of sabermetrics: …1977 James self-published his first Baseball Abstract, which was filled with original studies based on information James had gleaned from The Baseball Encyclopedia and box scores in The Sporting News. A few years later a profile of James in Sports Illustrated made him famous, and in 1982 the first mass-marketed…

Wilfrid Sheed: …Essays in Disguise (1990), and Baseball and Lesser Sports (1991). In 1995 Sheed published In Love with Daylight: A Memoir of Recovery, about his battle with alcoholism and cancer of the tongue and his disappointment with the professionals who treated him. His last work, the best-selling The House That George…

baseball: The ball and bat: The bat is a smooth rounded stick of solid or laminated wood, not longer than 42 inches (107 cm) or thicker at the barrel end than 2.75 inches (7 cm), tapering to the handle end. (Usually, however, in major league baseball, players prefer a bat no…

baseball: Play of the game: …a square area called the diamond, which has four white bases, one on each corner. The bases are 90 feet (27.4 meters) apart.

sabermetrics: Early analytic efforts: In 1969 The Baseball Encyclopedia, the first comprehensive compendium of major-league baseball statistics that reached all the way back to 1871, was published. An immediate sensation, The Baseball Encyclopedia—or “Big Mac,” as aficionados called it in honour of its publisher, Macmillan—was not really sabermetrics, but countless inspired…

baseball: Play of the game: …a square area called the diamond, which has four white bases, one on each corner. The bases are 90 feet (27.4 meters) apart.

baseball: Gloves: Baseball was originally played bare-handed. Beginning in 1860, catchers, who attempt to catch every pitch not hit, became the first to adopt gloves. First basemen, who take many throws for putouts from the infielders, soon followed, and finally all players adopted gloves. All gloves…

Baseball Hall of Fame, museum and honorary society, Cooperstown, New York, U.S. The origins of the hall can be traced to 1935, when plans were first put forward for the 1939 celebration of the supposed centennial of baseball (it was then believed that the American army officer Abner Doubleday had

baseball: Gloves: Baseball was originally played bare-handed. Beginning in 1860, catchers, who attempt to catch every pitch not hit, became the first to adopt gloves. First basemen, who take many throws for putouts from the infielders, soon followed, and finally all players adopted gloves. All gloves…

baseball: A national pastime: Baseball parks became important local civic monuments and repositories of collective memories. The first parks had been jerry-built, flimsy wooden structures, but between 1909 and 1923 some 15 major league clubs constructed new, more permanent parks of steel and concrete. These edifices were akin to…

The pitch clock, an attempt to speed up Major League Baseball (MLB) games, was implemented for the first time in the 2023 season. It was one of several rule changes that sought to address the reality that baseball, once heralded as America’s “national pastime,” was losing fans because

baseball: …between two teams of nine players each on a field with four white bases laid out in a diamond (i.e., a square oriented so that its diagonal line is vertical). Teams alternate positions as batters (offense) and fielders (defense), exchanging places when three members of the batting team are “put…

baseball: Labor issues: In 1912 came the Baseball Players’ Fraternity, which included most professional players. It was organized after the suspension of Ty Cobb for punching a fan. Later a threatened strike was settled the day before it was to begin.

In baseball, teams alternate between being fielders (defense) and batters (offense). On defense, nine players take up assigned positions on the field with the primary objective of preventing the opposing offense from scoring. The defense is tasked with collecting outs (also called putouts), which

baseball: Awards: …have been chosen by the Baseball Writers Association of America (BBWAA). There are also MVP awards for the League Championship Series, the World Series, and the All-Star Game.

history of baseball, overview of notable events and people in the history of baseball. Long known as “America’s Pastime,” the sport was not actually created in the United States and has been passed over in popularity by American football. Nevertheless, baseball remains, to many, inextricably tied

Roman Polanski: …D’après une histoire vraie (2017; Based on a True Story).

Blake Shelton: The Voice and God’s Country: …Red River Blue (2011) and Based on a True Story… (2013), were both nominated for a Grammy for best country album. The songs “Honey Bee” (2011) and “Mine Would Be You” (2013) also received Grammy nods.

Johann Bernhard Basedow was an influential German educational reformer who advocated the use of realistic teaching methods and the introduction of nature study, physical education, and manual training into the schools. He also called for an end to physical punishment and to rote memorization in

Switzerland: Expansion and position of power: …and along the Rhine from Basel to the Vorarlberg, peace was declared at Basel on September 22, 1499; the Swiss Confederation did not adhere to the decisions of Worms, but it remained a subject of the empire even though there was little effective control left. Within two years the strategic…

Basel, capital of the Halbkanton (demicanton) of Basel-Stadt (with which it is virtually coextensive), northern Switzerland. It lies along the Rhine River, at the mouths of the Birs and Wiese rivers, where the French, German, and Swiss borders meet, at the entrance to the Swiss Rhineland. It was

bank: The role of bank capital: …first (1988) and second (2004) Basel Accords (Basel I and Basel II), which were implemented within the European Union and, to a limited extent, in the United States, established minimum capital requirements for different banks based on formulas that attempted to account for the risks to which each is exposed.…

Swiss Bank Corporation, former Swiss bank, one of the largest banks in Switzerland until its merger with the Union Bank of Switzerland in 1998. The Swiss Bank Corporation was established in 1872 as the Basler Bankverein, specializing in investment banking. In an 1895 merger with Zürcher Bankverein,

Basel Committee on Banking Supervision, committee of the Bank for International Settlements, an institution that promotes financial and monetary cooperation among the world’s central banks. The Basel Committee on Banking Supervision was created in 1974 as an ongoing forum to discuss banking

international payment and exchange: The Basel Group: In 1930 a Bank for International Settlements was established at Basel, Switz.; its main duty was to supervise and organize the transfer of German reparations to the recipient countries. This “transfer problem” had caused much trouble during the 1920s. There may also have…

Novartis AG: …to form a cartel, the Interessengemeinschaft Basel (“Basel Syndicate”), or Basel IG, in order to compete with the German chemical cartel IG Farben. All three companies also established or acquired factories in various European countries and in the United States. In 1929–32 the Basel IG joined with IG Farben and…

Sam Francis: His 20-foot-long Basel Mural 1 (1956–58), with its rich blues, oranges, yellows, and reds and its evocative drips and splatters, seems positively jubilant. In the 1960s, perhaps in response to the minimalism then in full swing, Francis left much of his canvas unpainted, restricting his application of…

Theodor Herzl: The First Zionist Congress: …to be known as the Basel Program, declaring Zionism’s aspiration “to create a publicly guaranteed homeland for the Jewish people” in Palestine. It also set up the Zionist Organization with Herzl as president.

Basel Zoological Garden, privately owned zoological garden in Basel, Switzerland, noted for its outstanding work in the breeding of the Indian rhinoceros and the pygmy hippopotamus. The zoo was founded in 1874 for the purpose of exhibiting local wildlife. (It opened with about 100 mammals and

Confession of Basel, moderate Protestant Reformation statement of Reformed doctrine composed of 12 articles. It was first drafted by John Oecolampadius, the reformer of Basel, and was compiled in fuller form in 1532 by his successor at Basel, Oswald Myconius. In 1534 it was adopted by the Basel

Council of Basel, (1431), a general council of the Roman Catholic Church held in Basel, Switzerland. It was called by Pope Martin V a few weeks before his death in 1431 and then was confirmed by Pope Eugenius IV. Meeting at a time when the prestige of the papacy had been weakened by the Western

Maximilian I: Consolidation of power: …its virtual independence by the Peace of Basel (September 22). At the same time, the French moved back into Italy, in cooperation with Spain, and occupied the imperial fief of Milan.

Maximilian I: Consolidation of power: …its virtual independence by the Peace of Basel (September 22). At the same time, the French moved back into Italy, in cooperation with Spain, and occupied the imperial fief of Milan.

Jacob Burckhardt: Life: The University of Basel awarded Burckhardt the degree of Ph.D. in absentia, and after his return from Berlin in 1843 he was quickly authorized to give private lectures. Lecture he did, but for two years he had to earn his living as the editor of the…

Basel-Landschaft, Halbkanton (demicanton), northern Switzerland, traversed by the Jura Mountains and drained by the Ergolz and Birs rivers. It was formed in 1833 by the division of Basel canton into two half cantons, or demicantons, and its early history is linked with Basel (q.v.) city. Its

Basel-Stadt, Halbkanton (demicanton), northern Switzerland, consisting of the city of Basel (q.v.) and two small villages north of the Rhine. Occupying an area of 14 square miles (37 square km), it was formed in 1833 by the division of Basel canton into two half cantons, or demicantons. Its present

baselevel, in hydrology and geomorphology, limit below which a stream cannot erode. Upon entering a still body of water, a stream’s velocity is checked and thus it loses its eroding power; hence, the approximate level of the surface of the still water body is the stream’s baselevel. If a stream