327 résultats pour "once"

• Alcoholism.

  Although a consensus is growing among health professionals that alcohol dependence is a disease, society’s attitudes toward individuals with drinking problems remainambivalent and confused. Until the mid-20th century, the typical picture of the alcoholic was of someone without steady employment, unable to sustain familyrelationships and most likely in desperate financial straits. But this stereotype was largely dispelled when highly respected people publicly admitted their alcoholdependence and...

• Drug. I INTRODUCTION Drug, substance that affects the function of living cells, used

  normalizing chemical activity in the emotional centers of the brain. Antianxiety drugs, also referred to as tranquilizers, treat anxiety by decreasing the activity in theanxiety centers of the brain. Sedative-hypnotic drugs are used both as sedatives to reduce anxiety and as hypnotics to induce sleep. Sedative-hypnotic drugs act by reducing brain-cell activity.Stimulant drugs, on the other hand, increase neuronal (nerve cell) activity and reduce fatigue and appetite. Analgesic drugs reduce pain...

• Greek Mythology.

  world in search of her; as a result, fertility left the earth. Zeus commanded Hades to release Persephone, but Hades had cunningly given her a pomegranate seed toeat. Having consumed food from the underworld, Persephone was obliged to return below the earth for part of each year. Her return from the underworld each yearmeant the revival of nature and the beginning of spring. This myth was told especially in connection with the Eleusinian Mysteries, sacred rituals observed in the Greektown of Ele...

• First Americans.

  bones and artifacts helped 19th-century archaeologists establish the age of ancient human encampments in Europe. Yet, search as they might, American archaeologists found no comparable evidence of a Pleistocene-era human presence. But several sites revealed stone artifacts thatsome scholars believed looked similar to the ancient stone tools found in Europe. On the basis of this similarity, these experts claimed the American artifacts must be asold. By the 1890s, however, other scholars had challe...

• First Americans - Canadian History.

  bones and artifacts helped 19th-century archaeologists establish the age of ancient human encampments in Europe. Yet, search as they might, American archaeologists found no comparable evidence of a Pleistocene-era human presence. But several sites revealed stone artifacts thatsome scholars believed looked similar to the ancient stone tools found in Europe. On the basis of this similarity, these experts claimed the American artifacts must be asold. By the 1890s, however, other scholars had challe...

• Mexico City - geography.

  The park houses some of Mexico's most important public buildings, including Chapultepec Castle. Construction of the castle began in 1783. Positioned on the park’shighest elevation, the castle functioned as a fortress during colonial times. It once served as the presidential residence and now houses the National Museum of History,which includes murals by 20th-century Mexican painter Juan O'Gorman. Los Pinos, the official residence and working offices of the president, is also on the grounds, buti...

• Ice Hockey.

  Each period begins with a face-off at the blue dot at center ice. During the face-off one player from each team lines up at the dot with the stick blade on the ice. After the referee drops the puck, the two players attempt to gain possession of it. Quick hands and strength are essential qualities for players participating in the face-off. Once the puck is dropped, it is in play until an official’s whistle stops it, a goal is scored, or time expires. The team on offense tries to move the puck f...

• Ireland - country.

  F Plants and Animals Ireland’s animal life does not differ markedly from that of England or France. Over many centuries of human settlement almost all of Ireland’s natural woodlands werecleared, and indigenous animals such as bear, wolf, wildcat, beaver, wild cattle, and the giant Irish deer (a type of fallow deer) gradually disappeared. However, thehardy and versatile Connemara pony, Ireland’s only native pony breed, has been used by Irish farmers since prehistoric times. The great auk, or gar...

• Ancient Egypt.

  around 4500 BC. The style and decoration of the pottery found at these sites differ from those of pottery found in Upper Egypt. The northern type eventually fell out of use. Other differences between the peoples in Upper Egypt and Lower Egypt include the nature of their architecture and the arrangements for burial of the dead, thelatter perhaps signifying differing religious beliefs. B Unification and Early Dynastic Period By 3500 BC, the settlement of Hierakonpolis, located on the west bank...

• Ancient Egypt - USA History.

  around 4500 BC. The style and decoration of the pottery found at these sites differ from those of pottery found in Upper Egypt. The northern type eventually fell out of use. Other differences between the peoples in Upper Egypt and Lower Egypt include the nature of their architecture and the arrangements for burial of the dead, thelatter perhaps signifying differing religious beliefs. B Unification and Early Dynastic Period By 3500 BC, the settlement of Hierakonpolis, located on the west bank...

• Egypt - country.

  Egypt has a wide variety of mineral deposits, some of which, such as gold and red granite, have been exploited since ancient times. The chief mineral resource ofcontemporary value is petroleum, found mainly in the Red Sea coastal region, at Al ‘Alamayn (El ‘Alamein) on the Mediterranean, and on the Sinai Peninsula. Otherminerals include phosphates, manganese, iron ore, and uranium. Natural gas is also extracted. D Plants and Animals The vegetation of Egypt is confined largely to the Nile Delta,...

• LE SYSTÈME MONÉTAIRE INTERNATIONAL: LE DOLLAR

  96 Économie, préparation au bac 84 3) Indice des prix de détail (1967 = 100) 1950 ........... .. 81,8 1968. . . . . . . . . . . . . . . . . . . . . . . 102,5 1952 ............ . 88,6 1970 . . . . . . . . . . . . . . . . . . . . . . . 110.4 1954 ............ . 87,6 1971 . . . . . . . . . . . . . . . . . . . . . . . 114,0 1956 ............. . 90,7 1972........................ 119,1 1958 ....................... . 94,6 1973 . . . . . . . . . . . . . . . ....

• Excerpt from A Tale of Two Cities - anthology.

  “Good day, citizeness.” “Good day, citizen.” This mode of address was now prescribed by decree. It had been established voluntarily some time ago, among the more thorough patriots; but, was now law foreverybody. “ Walking here again, citizeness?” “You see me, citizen!” The wood-sawyer, who was a little man with a redundancy of gesture (he had once been a mender of roads), cast a glance at the prison, pointed at the prison, andputting his ten fingers before his face to represe...

• Neptune (planet) - astronomy.

  The gaseous atmosphere of Neptune contains hydrogen, helium, and about 3 percent methane. It extends about 5,000 km (about 3,000 mi) above the planet’s ocean.Light reflected from Neptune’s deep atmosphere is blue, because the atmospheric methane absorbs red and orange light but scatters blue light. In 1998 astronomersalso identified molecules of methyl in Neptune’s atmosphere. Methyl molecules each contain one carbon atom and three hydrogen atoms. Methyl molecules are knownas hydrocarbon radical...

• Snake (reptile).

  in their heads that conduct sound. They are able to hear low-frequency sounds and to sense vibrations that travel through the ground or water. The majority of snakeshave good eyesight, especially for detecting moving objects, although most burrowing snakes can only distinguish between light and dark. Pit vipers, boas, and pythons have an unusual adaptation for detecting warm-blooded prey and predators. On the heads of these snakes are small pits lined with cellsthat are extremely sensitive to he...

• Horse - biology.

  Horses reach sexual maturity at about one and a half years. The estrous cycle in the mare—a mature female horse—typically lasts 21 days. During the first five days ofthe cycle, the mare is usually receptive to mating. The estrous cycle stops during winter and resumes in the spring, which is the start of the breeding season. Astallion—a mature male horse—approaching a mare in estrus engages in various courtship rituals. These include uttering nickering sounds and sniffing and licking themare’s ge...

• Cyprus - country.

  40,000 cubic meters (1.4 million cubic feet) of salt water into fresh water per day, opened at Dhekelia in 1997, and a second larger plant opened at Larnaca in 2001. III PEOPLE OF CYPRUS The combined population of the Greek and Turkish sectors (2008 estimate) is 792,604. The overall population density is 86 persons per sq km (222 per sq mi). About69 percent of the island’s inhabitants live in urban areas. Greek-speaking Cypriots make up approximately 85 percent of the population. About 12 perc...

• Criminal Procedure.

  B State Criminal Procedure A person prosecuted in the courts of a particular state on a charge of violating the criminal laws of that state is subject to state criminal procedure. State criminalprocedure is found in the constitution, statutes, rules, and judicial decisions of that state. Furthermore, portions of the U.S. Constitution are applicable to state criminaldefendants. State constitutions generally guarantee a state criminal defendant most of the same rights that a federal defendant is...

• Boston - geography.

  The neighborhoods of Allston and Brighton occupy the northwest corner of the city to the west of Fenway. The Allston-Brighton area is bordered to the east, north, andwest by the Charles River and to the south by the Massachusetts Turnpike and the town of Brookline. It is an industrial and residential neighborhood that is also thelocation of Boston College and Harvard University Business School. Boston has been unsuccessful in annexing Brookline, the birthplace of U.S. president John F.Kennedy an...

• Child Development.

  developmental scientists have studied how cultural values guide the skills and attitudes that children acquire as they mature, and how brain maturation influences thedevelopment of thinking and feeling. For a more detailed discussion of child development theories, see the Theories of Child Development section of this article. III BASIC QUESTIONS A Nature and Nurture Scholars have long debated the relative importance of nature (hereditary influences) and nurture (environmental influences) i...

• Maine - geography.

  temperatures range from 17° to 21°C (62° to 70°F) with the southern interior being the warmest and the east coast and north the coolest. However, daytime summertemperatures may reach the lower 30°s C (lower 90°s F), and temperatures in winter have fallen as low as -44°C (-48°F) in the interior. D2 Precipitation Precipitation (rainfall and snowfall) in Maine is evenly distributed throughout the year. Most areas receive from 860 to 1,020 mm (34 to 40 in) yearly, although parts ofthe coast are som...

• Maine - USA History.

  temperatures range from 17° to 21°C (62° to 70°F) with the southern interior being the warmest and the east coast and north the coolest. However, daytime summertemperatures may reach the lower 30°s C (lower 90°s F), and temperatures in winter have fallen as low as -44°C (-48°F) in the interior. D2 Precipitation Precipitation (rainfall and snowfall) in Maine is evenly distributed throughout the year. Most areas receive from 860 to 1,020 mm (34 to 40 in) yearly, although parts ofthe coast are som...

• South Dakota - geography.

  C1 Temperatures Average January temperatures are everywhere less than -4° C (24° F) and decrease to less than -12° C (10° F) in some northern sections. The January temperaturesin Sioux Falls range from -16° to -4° C (3° to 24° F). Nightime lows of -29° C (-20° F) occur during most winters. July averages are in the low and middle 20°s C (lowand middle 70°s F) throughout most of the state, and are somewhat lower in the Black Hills. The average temperature range in Sioux Falls in July is 17° to 30...

• South Dakota - USA History.

  C1 Temperatures Average January temperatures are everywhere less than -4° C (24° F) and decrease to less than -12° C (10° F) in some northern sections. The January temperaturesin Sioux Falls range from -16° to -4° C (3° to 24° F). Nightime lows of -29° C (-20° F) occur during most winters. July averages are in the low and middle 20°s C (lowand middle 70°s F) throughout most of the state, and are somewhat lower in the Black Hills. The average temperature range in Sioux Falls in July is 17° to 30...

• Tennessee (state) - geography.

  The climate of Tennessee is characterized by hot summers, mild winters, and abundant rainfall. C1 Temperature Average July temperatures range from less than 21° C (70° F) in the Blue Ridge region to 27° C (80° F) at Nashville and Memphis. Maximum daytime temperatures insummer often rise above 35° C (95° F) in central and western Tennessee. Daytime temperatures in the mountains rarely rise above 32° C (90° F). Summer nights tendto be warm and muggy in central and western Tennessee, but temperatu...

• Tennessee (state) - USA History.

  The climate of Tennessee is characterized by hot summers, mild winters, and abundant rainfall. C1 Temperature Average July temperatures range from less than 21° C (70° F) in the Blue Ridge region to 27° C (80° F) at Nashville and Memphis. Maximum daytime temperatures insummer often rise above 35° C (95° F) in central and western Tennessee. Daytime temperatures in the mountains rarely rise above 32° C (90° F). Summer nights tendto be warm and muggy in central and western Tennessee, but temperatu...

• South Carolina - geography.

  (20° F) or lower, occur each winter. July temperatures average 27° C (80° F) in most of the state, with temperatures in the lower 20°s C (lower 70°s F) in themountains. Except in the mountains, summer daytime highs throughout South Carolina often enter the lower 30°s C (lower 90°s F). The temperature in July in Columbiaranges from 21° to 33° C (70° to 92° F). D2 Precipitation Central South Carolina has an average annual precipitation (both rainfall and snowfall) of 1,140 mm (45 in). Greater amo...

• South Carolina - USA History.

  (20° F) or lower, occur each winter. July temperatures average 27° C (80° F) in most of the state, with temperatures in the lower 20°s C (lower 70°s F) in themountains. Except in the mountains, summer daytime highs throughout South Carolina often enter the lower 30°s C (lower 90°s F). The temperature in July in Columbiaranges from 21° to 33° C (70° to 92° F). D2 Precipitation Central South Carolina has an average annual precipitation (both rainfall and snowfall) of 1,140 mm (45 in). Greater amo...

• Arizona - geography.

  of the Mogollon Rim, the Little Colorado draws very little water from a relatively large watershed, usually containing a mere trickle of water in its riverbed. The ColoradoRiver’s principal tributary is the Gila River, which flows all the way across the southern part of the state from New Mexico to the California border. From the mountainsand plateaus of central Arizona, the Gila River receives the Salt, Agua Fria, and Hassayampa rivers. The Salt River is itself fed by the Verde River. The Gila...

• Arizona - USA History.

  of the Mogollon Rim, the Little Colorado draws very little water from a relatively large watershed, usually containing a mere trickle of water in its riverbed. The ColoradoRiver’s principal tributary is the Gila River, which flows all the way across the southern part of the state from New Mexico to the California border. From the mountainsand plateaus of central Arizona, the Gila River receives the Salt, Agua Fria, and Hassayampa rivers. The Salt River is itself fed by the Verde River. The Gila...

• Texas - geography.

  D Climate Eastern Texas has a humid subtropical climate, while a semiarid low latitude climate prevails in central areas, and an arid low latitude climate in the extreme west. Alongthe coast the climate is much milder, with fewer extremes in temperatures. Hurricanes sometimes hit the coastal areas of Texas from late July through September, andtornadoes are common in north-central Texas in April and May. D1 Temperature Summers are hot throughout the state, and temperatures exceeding 35°C (95°F)...

• Texas - USA History.

  D Climate Eastern Texas has a humid subtropical climate, while a semiarid low latitude climate prevails in central areas, and an arid low latitude climate in the extreme west. Alongthe coast the climate is much milder, with fewer extremes in temperatures. Hurricanes sometimes hit the coastal areas of Texas from late July through September, andtornadoes are common in north-central Texas in April and May. D1 Temperature Summers are hot throughout the state, and temperatures exceeding 35°C (95°F)...

• Cuba - country.

  Only two land mammals, the hutia, or cane rat, and the solenodon, a rare insectivore that resembles a rat, are known to be indigenous. The island has numerous batsand nearly 300 kinds of birds, including vultures, wild turkeys, quail, finches, gulls, macaws, parakeets, and hummingbirds. The bee hummingbird of Cuba is thesmallest bird in the world. Among the few reptiles are tortoises, caimans, the Cuban crocodile, and a species of boa that can attain a length of 3.7 m (12 ft). More than700 speci...

• Les grands félins

  Portée: jusqu'à quatre petits. Distribution: Asie centrale. Statut U/CN: en danger. !:once à longs poils figure sur la Liste rouge parmi les espèces menacées. On estime actuellement le nombre d'individus à seulement 5 000. MODE DE VIE !:once, qui vit dans les forêts de conifères de l'Himalaya et de l'Asie centrale, monte l'été jusqu'à 5000 rn d'altitude, dans la neige et la glace, et redescend en dessous de la limite des neiges en hiver. La nourriture...

• Lead - chemistry.

  compounds are considered serious hazards for children. Children are especially at hazard from lead, even at levels once thought safe. Lead can reduce intelligence,delay motor development, impair memory, and cause hearing problems and troubles in balance. In adults, one lead hazard at levels once thought safe is that ofincreased blood pressure. Present-day treatment of lead poisoning includes the administration of calcium disodium ethylenediaminetetraacidic acid, or EDTA, a chelatingagent; lead i...

• Dictionnaire en ligne: DÉTREMPÉ1, -ÉE, participe passé et adjectif.

  1936, page 561 ). — Emploi pronominal à sens passif. Le plâtre est à écarter. Il se détrempe et tombe sous les gouttières (JOSEPH DE PESQUIDOUX, Le Livre de raison, 1925, page 143 ). — Par analogie et au figuré. [L'idée dominante est celle de ramollissement] Es-tu de force, Ou si d'avoir pleuré t'a détrempé le coeur! (PAUL VERLAINE, Œuvres complètes, Sagesse, Paris, Gallimard, 1962 [1881] , page 244 ). La mère déjà si faible (...) brisée, détrempée par les larmes (ALPHONSE DAUDET, L'Évangéliste...

• L'affaire Festina, premier grand procès du dopage

  Festina, a été mis en cause dans l'importation des substances illicites. Puis, Jean Dalibot, autre soigneur de l'équipe, poursuivi,notamment, pour avoir administré des produits. Une pharmacienne de Veynes, près de Gap (Hautes- Alpes) et son compagnon,comptable, ont également été impliqués pour avoir fourni illégalement des médicaments à Willy Voet. Entendus à leur tour, plusieurs coureurs ou anciens coureurs de Festina ont reconnu avoir cédé au dopage : Armin Meïer,Laurent Brochard, Neil Step...

• It was twelve weekends earlier that I'd gone to visit Abe Black in Coney Island.

  the boardwalk, likefunnel cakesandcotton candyandhotdogs. Itwas analmost perfect day,except thatAbedidn't know anything aboutthekey orabout Dad.Hesaid hewas driving intoManhattan andcould givemearide ifIwanted one. Itold him, "Idon't getincars with strangers, andhow didyou know Iwas going toManhattan?" Hesaid, "We're not strangers, andIdon't know howIknew." "Doyouhave anSUV?" "No.""Good. Doyou have agas-electric hybridcar?" "No." "Bad." While wewere inthe carItold himallabout howIwas going tomee...

• Définition du mot: ALLIÉ, -ÉE, participe passé, adjectif et substantif.

  Napol?on Bonaparte ?tant au pouvoir des souverains alli?s, leurs majest?s le roi du Royaume-Uni de la Grande-Bretagne et de l'Irlande... etc. ? EMMANUEL DIEUDONN?, COMTE DE LAS CASES, Le M?morial de Sainte-H?l?ne, tome 1, 1823, page 488. ? 5.... en ?trurie les Gaulois n'attaqu?rent que les villes alli?es de Rome, Clusium et C?r?... JULES MICHELET, Histoire romaine, tome 1, 1831, page 136. ? 6.... la loi Mac-Mahon fut ? nouveau amend?e sous l'angle de la collaboration militaire internationale...

• The Four-Minute Mile.

  The nervous runners false-started once before setting off cleanly. As planned, Chris Brasher led Bannister through the first half-mile. After a half lap (200 meters),Bannister called out to his teammate: “Faster! Faster!” Accelerating, the runners sped through the first quarter-mile in 57.5 seconds-ahead of pace. At 600 meters,Stampfl shouted from the infield: “Relax! Relax!” Running smoothly behind Brasher, Bannister reached the half-mile mark in 1 min 58.2 sec. Chataway sprinted into the l...

• Oerter Wins Third Gold Medal.

  Few expected Oerter to show up for the qualifying rounds. Nevertheless he did, with several parts of his 6-foot-4-inch, 270-pound body wrapped in tape, packed inice, and numbed with Novocain. After doffing his neck brace, he propelled the discus a miraculous 198 ft 7.5 in (60.5 m) in his first effort, achieving anotherOlympic record. Wrenched with pain, Oerter told a teammate before the start of the final round that his only chance to win was with a strong first throw. His initial effort, ho...

• David Livingstone.

  day Zambia) in May 1873. Chuma and Susi buried his heart at the foot of a nearby tree and dried and wrapped Livingstone’s body. They then carried the body, alongwith Livingstone’s papers and instruments, to the Indian Ocean coast and the island of Zanzibar, a trip that lasted nine months. In April 1874 Livingstone’s remainsreached England by boat and were buried in Westminster Abbey in London. The hero’s funeral fixed British attention once more on Africa and Livingstone’s ideas forAfrican progr...

• David Livingstone - explorer.

  day Zambia) in May 1873. Chuma and Susi buried his heart at the foot of a nearby tree and dried and wrapped Livingstone’s body. They then carried the body, alongwith Livingstone’s papers and instruments, to the Indian Ocean coast and the island of Zanzibar, a trip that lasted nine months. In April 1874 Livingstone’s remainsreached England by boat and were buried in Westminster Abbey in London. The hero’s funeral fixed British attention once more on Africa and Livingstone’s ideas forAfrican progr...

• Jackie Robinson Breaks the Barrier.

  Leagues. The crowd of fans at the Negro Leagues' annual East-West Classic All-Star Game in 1944 outnumbered the major league All-Star Game 46,247 to 29,589. Another barrier to black players fell when baseball commissioner Kenesaw Mountain Landis, an adamant opponent of desegregation, died in office in 1944 and wasreplaced by A. B. “Happy” Chandler. Chandler was known to support integration, but it took Branch Rickey, who had built the St. Louis Cardinals' farm system intothe finest in baseba...

• Stevenson: From Treasure Island - anthology.

  air in front of him: ‘Will any kind friend inform a poor blind man, who has lost the precious sight of his eyes in the gracious defence of his native country, England, and God bless KingGeorge!—where or in what part of this country he may now be?’ ‘You are at the “Admiral Benbow,” Black Hill Cove, my good man,’ said I. ‘I hear a voice,’ said he—‘a young voice. Will you give me your hand, my kind young friend, and lead me in?’ I held out my hand, and the horrible, soft-spoken, eye...

• Messier Lifts the Curse.

  Swept up in the hype, the Rangers came out for game five at the Garden in a virtual sleepwalk. By the start of the third period they were down 3-0. New Yorkscratched back to level the score as Messier culminated the three-goal spurt with a wrist shot midway through the period. Vancouver then stunned the Rangers—andthe sellout crowd—by netting three quick goals to put the game far out of reach. Game six in Vancouver proved even more of a challenge for the Rangers. The team showed little will...

• Neutron I INTRODUCTION Neutron, electrically neutral elementary particle that is part of the nucleus of the atom.

  Beta DecayBeta decay can occur in two ways. As shown on the left, a neutron turns into a proton by emitting an antineutrino and anegatively charged beta particle. As shown on the right, a proton turns into a neutron by emitting a neutrino and apositively charged beta particle. Positive beta particles are called positrons and negative beta particles are called electrons.After the decay, the nucleus of the atom contains either one less or one more proton. Beta decay changes an atom of oneelement i...

• Bangkok - geography.

  the decline of the canal system that once so distinguished the city, Bangkok's famous floating market has had to move from the city to the western suburbs. Themarket features vendors selling their wares from boats in the early-morning hours. Since the 1960s, high-rise buildings have been erected all over the city. Typical housing in the core of the city now consists of apartments on the second through fourthfloors of a shophouse; the building’s only recreational space is the rooftop. In the subu...

• Jacksonville (Florida) - geography.

  and southern sections and avoiding the downtown bottleneck where Interstate 95 crosses the Saint Johns River at the Fuller Warren Bridge. In addition to being a regional highway crossroads, the city is a railway hub, with Amtrak passenger service and several freight routes. The city’s expanding airport,located in northern Jacksonville, was the nation’s fastest growing in passenger volume in the mid-1990s. V GOVERNMENT Jacksonville has a mayor-council form of municipal government. The mayor and...

• Sir Charles Tupper.

  campaign, Macdonald asked him to become minister of finance. He was then sent to Washington, D.C., as leader of the Canadian delegation to settle a fisheries disputewith the United States. A treaty was worked out and signed, but the U.S. Senate refused to ratify it. Tupper had already become a Knight Commander of St. Michaeland St. George in 1879, and he received the Knight Grand Cross of St. Michael and St. George in 1886. For his services in Washington he was given the hereditary titleof baron...