(from the article "Slavic languages") The Polabian language bordered the Sorbian dialects, which are still spoken by inhabitants of Lusatia in eastern Germany. There are two literary languages: Upper Sorbian, used around Bautzen (Budysin), and ...
(from the article "United States") The Upland South, which comprises the southern Appalachians, the upper Appalachian Piedmont, the Cumberland and other low interior plateaus, and the Ozarks and Ouachitas, was colonized culturally and demographically from ...
(from the article "primate") ...a three-dimensional maze that provides home, restaurant, shopping districts, and highways for primates. Three strata of rainforests are broadly distinguishable: an understory, a middle story, and an upper story. The ...
(from the article "Kiev") The city limits enclose an area of 300 square miles (780 square km) on both banks of the Dnieper. It is divided into 12 administrative wards. The focus of Kiev ...
cataract on the west slope of the Sierra Nevada in Yosemite National Park, east-central California, U.S. It lies 150 miles (240 km) east of San Francisco. With a drop of ... [1 Related Articles]
(from the article "International Monetary Fund") ...and, since 1987, a poverty-reduction and growth facility. Each facility has its own access limit, disbursement plan, maturity structure, and repayment schedule. The typical IMF loan, known as an upper-credit ...
(from the article "boxing") ...moves directly out from the shoulder. The hook, also thrown with the lead hand, is a short lateral movement of arm and fist, with elbow bent and wrist twisted inward ...
town (parish) in the unitary authority and historic county of Rutland, England, noted for its 16th-century houses and its public (independent secondary) school. It came into being as a market ...
(from the article "Uppingham") ...England, noted for its 16th-century houses and its public (independent secondary) school. It came into being as a market town and is located in what is still a predominantly agricultural ...
landskap (province), east-central Sweden. It is bounded by the Gulf of Bothnia and the Baltic Sea on the east and by the traditional landskap (provinces) of Sodermanland, Vastmanland, and Gastrikland ... [1 Related Articles]
(from the article "Scandinavian law") ...were occasionally instructions from the king. The best known laws of this period are the Gulathing's law (written in the 11th century, Norwegian); the law of Jutland (1241, Danish); and ...
American baritone (b. Jan. 12, 1920, San Jose, Calif.-d. March 17, 2005, New York, N.Y.), originated the title role of Benjamin Britten's opera Billy Budd at its premiere at Covent ...
lan (county) in east-central Sweden. It lies between Malaren (lake) on the south and the Gulf of Bothnia on the north. It constitutes most of the western part of the ...
city and capital of the lan (county) of Uppsala, east-central Sweden. It lies 40 miles (64 km) north-northwest of Stockholm. Originally known as Ostra Aros, it was founded as a ... [1 Related Articles]
(from the article "Linnaeus, Carolus") At this early stage, Linnaeus laid the groundwork for much of his later work in a series of manuscripts. Their publication, however, had to await more fortuitous circumstances. In 1732 ...
(from the article "Uppsala") Although it later relinquished its political primacy to Stockholm, Uppsala has remained a religious centre as the seat of the archbishop of Sweden. The Gothic cathedral, the largest such structure ...
(from the article "Hagerstrom, Axel") Swedish philosopher who founded the Uppsala school of philosophy, which espoused phenomenological and conceptual analysis and rejected metaphysical suppositions and subjectivism.theories of sacred kingship
state-sponsored coeducational university at Uppsala, the oldest institution of higher learning in Sweden. It was founded in 1477 but closed in 1510 owing to the religious disputes of the time. ... [3 Related Articles]
(from the article "Charles IX") After the devoutly Catholic Sigismund also succeeded to the Swedish throne in 1592, Charles called the Convention of Uppsala (1593), which demanded that Lutheranism be retained as the national religion. ...
musical instrument in which the soundboard and plane of the strings run vertically, perpendicular to the keyboard, thus taking up less floor space than the normal grand piano. Upright pianos ... [1 Related Articles]
(from the article "primate") Some degree of bipedal ability, of course, is a basic possession of the order Primates. All primates sit upright. Many stand upright without supporting their body weight by their arms, ...
(from the article "Man O' War") ...Press poll taken in 1950, the greatest horse of the first half of the 20th century. In a brief career of only two seasons (1919-20), he won 20 of 21 ...
(from the article "metallurgy") Two closed-die forging operations given special names are upsetting and coining. Coining takes its name from the final stage of forming metal coins, where the desired imprint is formed on ...
American soprano Dawn Upshaw, known for her exquisite voice and for her meticulous attention to texts in many languages, in 2007 was awarded a John D. and Catherine T. MacArthur ... [1 Related Articles]
American football player was a standout offensive lineman for professional football's Oakland Raiders, helping to lead the team to three Super Bowls (1968, 1977, 1981). After his retirement as a ...
(from the article "catfish") ...of South America sometimes invades the urogenital openings of bathers; the talking catfish (Acanthodoras spinosissimus) is an armoured, Amazonian species that makes grunting sounds; the upside-down catfishes (Synodontis batensoda and ...
(from the article "meson") ...and strange.) It was the first manifestation of charm, a new quantum number the existence of which implies that quarks are related in pairs. The subsequent discovery of another heavy ...
(from the article "therapeutics") Study of the factors that influence the movement of drugs throughout the body is called pharmacokinetics, which includes the absorption, distribution, localization in tissues, biotransformation, and excretion of drugs. The ...
American mathematician and physicist who, as assistant to Thomas Edison, contributed to the development of the American electric industry. [1 Related Articles]
(from the article "heraldry") ...whose Tractatus de armis ("Treatise on Arms") was produced about 1394. Then came a Welsh treatise by John Trevor, the Llyfr arfau ("Book of Arms"). Nicholas Upton, a canon of ...
(from the article "social mobility") ...managerial position in one company to a similar position in another. If, however, the move involves a change in social class, it is called "vertical mobility" and involves either "upward ...
(from the article "valley") ...drainage were made during the exploration of the Colorado River system in the 19th century by the American geologist John Wesley Powell. The Colorado River and its tributaries cross great ...
(from the article "marine ecosystem") The most productive waters of the world are in regions of upwelling. Upwelling in coastal waters brings nutrients toward the surface. Phytoplankton reproduce rapidly in these conditions, and grazing zooplankton ...
(from the article "mathematics") ...over from the Hindus. (Different forms of the numerals, whose origins are not entirely clear, were used in western Islam.) The basic algorithms also came from India, but these were ...
in the Druze religion, an elite of initiates who alone know Druze doctrine (hikmah, literally "wisdom"), participate fully in the Druze religious services, and have access to Druze scripture. The ... [1 Related Articles]
important city of ancient southern Mesopotamia (Sumer), situated about 140 miles (225 km) southeast of the site of Babylon and about 10 miles (16 km) west of the present bed ... [26 Related Articles]
(from the article "India") ...of village councils. Villages that had been donated to Brahmans had councils called sabhas; in the non-Brahman villages the council was called the ur. ...
(from the article "Erech") The temenos (sacred enclosure) of Eanna, another ziggurat, bore witness to the attention of many powerful kings, including Ur-Nammu (reigned 2112-2095 BC), first king of the 3rd dynasty of Ur. ...
(from the article "cuneiform law") Here it is possible only to illustrate some of the major extant laws or codes. The most ancient legislator known is Ur-Nammu, the founder of one of the Sumerian dynasties ...
city, Khudzhand oblast (province), Tajikistan, in the northern foothills of the Turkistan Range. One of the most ancient cities of the republic, it may date from the 6th century AD, ...
(from the article "Darien, Gulf of") triangular southernmost extension of the Caribbean Sea, bounded by Panama on the southwest and by Colombia on the southeast and east. The inner section, which is called the Gulf of ...
Egyptian nationalist who led a social-political movement that expressed the discontent of the Egyptian educated classes, army officials, and peasantry with foreign control. [2 Related Articles]
a colourless, crystalline organic compound of the pyrimidine family that occurs as a component of ribonucleic acid (RNA), a molecule involved in the transmission of hereditary characteristics. The RNA molecule ... [3 Related Articles]
Japanese painter and musician who excelled in depicting scenes of nature realistically and in the art of playing the seven-stringed zither. [1 Related Articles]
a paleoanthropological site in northern Malawi known for the discovery of a jawbone of an ancient human (genus Homo) dating to 2.4 million years ago (mya). It is similar to ...
mountain range forming a rugged spine in west-central Russia and the major part of the traditional physiographic boundary between Europe and Asia. Extending some 1,550 miles (2,500 kilometres) from the ... [11 Related Articles]
river in Russia and Kazakhstan. The Ural is 1,509 miles (2,428 km) long and drains an area of 91,500 square miles (237,000 square km). It rises in the Ural Mountains ... [3 Related Articles]
(from the article "Tatar language") ...forms. The major Tatar dialects are Kazan Tatar (spoken in Tatarstan), Western or Misher Tatar, as well as the minor eastern or Siberian dialects, Kasimov, Tepter (Teptyar), and Astrakhan and ...
(from the article "Tertiary Period") On the Eurasian continent itself, the Ural Trough, a marine seaway that linked the Tethys with the Arctic region but also constituted a barrier to the east-west migration of terrestrial ...
hypothetical language grouping that includes all the languages of the Uralic and Altaic language families. Most of the evidence for including the Uralic and Altaic languages in one language family ... [2 Related Articles]
(from the article "Ural Mountains") ...a high mountainous region, which was eroded to a peneplain. Alpine folding resulted in new mountains, the most marked upheaval being that of the Nether-Polar Urals. In the watershed region ...
(from the article "glacier") ...even in areas of low precipitation and high melt rates. Glaciers formed almost entirely of drift snow occur at high altitudes in Colorado and in the polar Ural Mountains and ...
a 3,500-kilometre- (2,175-mile-) long elongate mountain system that extends from the Aral Sea to the islands of Novaya Zemlya. It is 500 km wide in the south but only 100-150 ... [2 Related Articles]
family of more than 20 related languages, all descended from a Proto-Uralic language that existed 7,000 to 10,000 years ago. At its earliest stages, Uralic most probably included the ancestors ... [8 Related Articles]
(from the article "Slovenia") ...Rode of Ljubljana, who had led the church in Slovenia since 1997 and had spoken out often and in strong terms in defense of its rights, was appointed to a ...
in Greek religion, one of the nine Muses, patron of astronomy. In some accounts she was the mother of Linus the musician (in other versions, his mother is the Muse ... [1 Related Articles]
observatory established in 1576 by the Danish astronomer Tycho Brahe. It was the last of the primitive observatories in that it antedated the invention of the telescope (c. 1608); and ... [1 Related Articles]
a major ore mineral of uranium, uranium dioxide (UO2). Uraninite usually forms black, gray, or brown crystals that are moderately hard and generally opaque. A variety of uraninite ore that ... [5 Related Articles]
municipal corporation, centre of the Beaverlodge Lake mining region in extreme northwestern Saskatchewan, Canada. It lies near the north shore of Lake Athabasca. The discovery in the early 1950s and ...
(from the article "ceramic composition and properties") The second structure (Figure 2B) is called fluorite, after the mineral calcium fluoride (CaF2), which possesses this structure-though the material shown is urania (uranium dioxide, UO2). In this structure the ...
(from the article "United Nations") ...and that it had missed a crucial reporting deadline. Although Iran had made new disclosures about its nuclear program, the information it provided to the IAEA was incomplete. The report ...
(from the article "coordination compound") Among the many coordination compounds having neutral molecules is uranium(+6) fluoride, or uranium hexafluoride (UF6). The structural formula of the compound represents the actual arrangement of atoms in the molecules:isotopic ...
(from the article "hydride") ...hydrides. For example, lanthanum (La) reacts with hydrogen gas at one atmosphere pressure with little or no heating to produce a black solid that inflames in air and reacts vigorously ...
(from the article "uranium series") set of unstable heavy nuclei constituting one of the four radioactive series (q.v.).FIGUREradioactive seriesThe four radioactive series of chemical el
(from the article "uranium processing") ...reducing the trioxide with hydrogen to uranium dioxide (UO2). Subsequent treatment of powdered UO2 with gaseous hydrogen fluoride (HF) at 550° C (1,025° F) produces uranium tetrafluoride (UF4) and water ...
(from the article "protactinium") ...and was first isolated (1934) in metallic form by Aristid V. Grosse. The first isotope, protactinium-234, was discovered (1913) by Kasimir Fajans and O.H. Gohring and named brevium, afterward uranium ...
(from the article "fissile material") ...nuclear physics, any species of atomic nucleus that can undergo the fission reaction. The principal fissile materials are uranium-235 (0.7 percent of naturally occurring uranium), plutonium-239, and uranium-233, the last ...
method of age determination that makes use of the radioactive decay of uranium-238 to uranium-234; the method can be used for dating of sediments from either a marine or a ...
(from the article "Heat productivities") ...may exhibit retardations from equation (6) rates ranging to factors of thousands or more. The factor by which the rate is slower than the rate formula (6) is the hindrance ...
(from the article "Heat productivities") ...for electric power generation. Whereas a conventional nuclear reactor (q.v.) can use only the readily fissionable but scarce isotope uranium-235 for fuel, a breeder reactor employs either uranium-238 or thorium, ...
(from the article "uranium processing") ...and uranium-234 (0.006 percent). Of these naturally occurring isotopes, only uranium-235 is directly fissionable by neutron irradiation. However, uranium-238, upon absorbing a neutron, forms uranium-239, and this latter isotope eventually ...
(from the article "dating") As each dating method was developed, tested, and improved, mainly since 1950, a vast body of knowledge about the behaviour of different isotopic systems under different geologic conditions has evolved. ...
(from the article "Principal cosmogenic and uranium-thorium series radioisotopes") The isotopic dating methods discussed so far are all based on long-lived radioactive isotopes that have survived since the elements were created or on short-lived isotopes that were recently produced ...
(from the article "helium dating") ...that mineral or rock, and the ratio of helium to its radioactive progenitors then becomes a measure of geologic time. If the parent isotopes are measured, the helium dating method ...
method of establishing the time of origin of a rock by means of the amount of common lead it contains; common lead is any lead from a rock or mineral ... [1 Related Articles]
(from the article "Judaism") ...between the 2nd century BCE and the 1st century CE took them in many different directions: angelology (doctrine about angels) and demonology (doctrine about devils); mythical geography and uranography (description ...
in Greek mythology, the personification of heaven. According to Hesiod's Theogony, Gaea (Earth), emerging from primeval Chaos, produced Uranus, the Mountains, and the Sea. From Gaea's subsequent union with Uranus ... [4 Related Articles]
seventh planet in distance from the Sun and the least massive of the solar system's four giant, or Jovian, planets, which also include Jupiter, Saturn, and Neptune. At its brightest, ... [21 Related Articles]
(from the article "alkali metal") ...as selective extraction of lithium chloride into organic solvents and the detection of lithium with azo dyes that give highly sensitive colour reactions in alkaline solutions. A modification of the ...
(from the article "uranium processing") ...in air at atmospheric pressure and at 75° to 80° C (167° to 175° F) for periods that vary with the particular ore. The alkaline leachant reacts with uranium to ...
(from the article "mineral deposit") Uranium occurs in two valence states, U4+ and U6+. Weathering of rocks converts uranium into the +6 state, in which state it forms the uranyl ion (UO2)2+. Uranyl compounds tend ...
(from the article "uranium processing") ...tributyl phosphate diluted with kerosene or some other suitable hydrocarbon mixture. Finally, uranium is stripped from the tributyl phosphate extract into acidified water to yield a highly purified uranyl nitrate, ...
(from the article "uranium processing") ...(11 pounds) of manganese dioxide or 1.5 kilograms of sodium chlorate per ton suffice to oxidize tetravalent uranium. In any case, the oxidized uranium reacts with the sulfuric acid to ...
ancient language spoken in northeastern Anatolia and used as the official language of Urartu in the 9th-6th centuries BCE. Urartu centred on the district of Lake Van but also extended ... [3 Related Articles]
(from the article "Haldi") the national god of the ancient kingdom of Urartu, which ruled the plateau around Lake Van, now eastern Turkey, from about 900 to about 600 BC. Haldi was represented as ...
ancient country of southwest Asia centred in the mountainous region southeast of the Black Sea and southwest of the Caspian Sea. Today the region is divided among Armenia, eastern Turkey, ... [10 Related Articles]
(from the article "Saitama") Omiya, formerly the prefectural capital and now the northern portion of Saitama city, and Urawa, the southern part of the new city, were roughly equal in size at the time ...
city, northwestern Chiba ken (prefecture), east-central Honshu, Japan. Lying on a flat plain along Tokyo Bay, it is separated from the city of Tokyo to the west ...
(from the article "lutetium") ...the lanthanoid series of the periodic table; the hardest and densest rare-earth element, last member of the lanthanoid series. Lutetium was discovered (1907-08) by Carl Auer von Welsbach and Georges ...
(from the article "anthropology") Urban anthropology is the study of cultural systems and identities in cities as well as the various political, social, economic, and cultural forces that shape urban forms and processes. Although ...
(from the article "blues") ...Great Depression and the World Wars caused the geographic dispersal of the blues as millions of blacks left the South for the cities of the North. The blues became adapted ...
any set of climatic conditions that prevails in a large metropolitan area and that differs from the climate of its rural surroundings. [1 Related Articles]
(from the article "museums, history of") A related development has been the ecomuseum, such as the Ecomuseum of the Urban Community at Le Creusot-Montceau-les-Mines in France. Here a bold experiment involves the community as a whole, ...
musical genre of the 1980s and '90s defined by recordings by rhythm-and-blues or soul artists with broad crossover appeal. Urban contemporary began as an American radio format designed to appeal ... [2 Related Articles]
