308 résultats pour "helps"

• Ant - biology.

  The workers of many ant species carry a stinger within the hind end of the gaster. These ants use the stinger to defend against their enemies. In some species, workerants lack a stinger but use the tip of their gaster to squirt or dab poison at other small animals and when fighting battles with other ants, fending off predators, or killinginsects or other animals that they use as food. III PHYSIOLOGY Ants have a rigid, external skeleton called an exoskeleton that gives the soft, inner body its...

• Dwight D.

  maneuvers in Louisiana in 1941, he played a leading role as a staff officer, adding to his reputation and securing him a promotion to brigadier general. On December 7,1941, Japan attacked Pearl Harbor, Hawaii, and the next day the United States entered World War II against the Axis Powers (Japan, Germany, and Italy). A weeklater, the army’s new chief of staff, General George C. Marshall, called Eisenhower to Washington, D.C., and put him in charge of the War Plans Division. Opinions differed on...

• Latin American Independence.

  be inferior and were not permitted a university education. In the lowest caste were the African slaves. As the Spanish monarchy tried to increase its authority, it was hampered by the power of the Catholic Church. The church, including various religious orders, hadacquired great wealth, including large holdings of land, in the colonies. The Jesuit order especially had gained extraordinary wealth and political influence, and it alsocontrolled much of the university and high school education in th...

• North Dakota - geography.

  Bismarck, the growing season averages 134 days, as the average date of the last killing frost is May 11 and that of the first killing frost is September 22. The length ofthe growing season drops to about 110 days in the northerly reaches of the state. The long periods of summer sunshine at this latitude, providing as much as 16 hoursof daylight in summer, help crops to mature quickly, thus compensating somewhat for the relatively short growing season. Temperatures in the north are, on the averag...

• North Dakota - USA History.

  Bismarck, the growing season averages 134 days, as the average date of the last killing frost is May 11 and that of the first killing frost is September 22. The length ofthe growing season drops to about 110 days in the northerly reaches of the state. The long periods of summer sunshine at this latitude, providing as much as 16 hoursof daylight in summer, help crops to mature quickly, thus compensating somewhat for the relatively short growing season. Temperatures in the north are, on the averag...

• Fascism.

  values as coming before a radical political transformation. Others argue that a radical political transformation will then be followed by a change in values. Fascists claimthat the nation has entered a dangerous age of mediocrity, weakness, and decline. They are convinced that through their timely action they can save the nation fromitself. Fascists may assert the need to take drastic action against a nation's 'inner' enemies. Fascists promise that with their help the national crisis will end an...

• Congress of the United States.

  senator, a person must be at least 30 years old, a citizen for nine years, and a resident of the state from which he or she is elected. Most members of Congress haveserved in state legislatures, city councils, or other elected bodies. See United States Senate: Campaigning for the Senate ; United States House of Representatives: Campaigning for the House. The 435 House seats are divided among the states in proportion to each state’s population. Every state is guaranteed at least one seat. State...

• Intelligence.

  education. Teachers had no way of knowing which of the “slow” students had true learning problems and which simply had behavioral problems or poor prior education.In 1904 the French Ministry of Public Instruction asked Binet and others to develop a method to objectively identify children who would have difficulty with formaleducation. Objectivity was important so that conclusions about a child’s potential for learning would not be influenced by any biases of the examiner. The governmenthoped tha...

• Puerto Rico - geography.

  the length of the day remains fairly constant throughout the year. San Juan has a mean July temperature of 28°C (83°F) and a mean January temperature of 25°C (77°F). The average temperature of the seawater surrounding theisland is 27°C (81°F), with little variation during the course of the year. The entire island is cooled by the trade winds from the northeast. This air also contains much water vapor. As the air is forced to rise over the mountains, it becomescooler and the water vapor condenses...

• Ancient Rome .

  attributed to Numa, including the selection of virgins to be priestesses of the goddess Vesta. He also established a calendar to differentiate between normal workingdays and those festival days sacred to the gods on which no state business was allowed. His peaceful reign lasted from 715 to 673 BC. Under Tullus Hostilius (672–641 BC) the Romans waged an aggressive foreign policy and began to expand their lands by the conquest of nearby cities like Alba Longa. When the warlike King Hostilius co...

• Ancient Rome - USA History.

  attributed to Numa, including the selection of virgins to be priestesses of the goddess Vesta. He also established a calendar to differentiate between normal workingdays and those festival days sacred to the gods on which no state business was allowed. His peaceful reign lasted from 715 to 673 BC. Under Tullus Hostilius (672–641 BC) the Romans waged an aggressive foreign policy and began to expand their lands by the conquest of nearby cities like Alba Longa. When the warlike King Hostilius co...

• African American History - U.

  In their day-to-day lives, slaves and servants shared similar grievances and frequently formed alliances. Advertisements seeking the return of slaves and servants whohad run away together filled colonial newspapers. When a slave named Charles escaped in 1740, the Pennsylvania Gazette reported that two white servants, a 'Scotch man' and an Englishman, escaped with him. Sometimes interracial alliances involved violence. During Bacon's Rebellion in 1676, slaves and servants took up armsagainst Na...

• Dolphins.

  Scientists believe dolphins are at least as smart as dogs. Dolphins can communicate with one another.Their language is a set of whistles, screeches, and clicks. Dolphins take care of other dolphins that need help. Dolphins will even hold a sick or injured dolphin upout of the water so that it will not drown. Microsoft ® Encarta ® 2009. © 1993-2008 Microsoft Corporation. All rights reserved.

• Filière technicien en gestion informatisé

    I nstitute of  B usiness  E nterprise and  M anagement                                                                    IB E M PROMOTION 2009 -2011 DEDICACE Zouhair Kozmane Page 2 J’ai le plaisir de dédier ce travail à des personnes qui me sont chères et qui m’ont aidés à réaliser ce travail : A mes chers parents… Pour leur générosité et leur présence permanente. A ma sœur et mon frère Pour l’inspiration de ma vivacité, et la motivat...

• Parkour - Dillution

• 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...

• From Bulfinch's Mythology: Beowulf - anthology.

  help his aged monarch. Another rush of the dragon shattered Beowulf's sword and the monster's fangs sunk into Beowulf's neck. Wiglaf, rushing into the struggle,helped the dying Beowulf to kill the dragon. Before his death, Beowulf named Wiglaf his successor to the throne of Geatland and ordered that his own ashes be placed in a memorial shrine at the top of a highcliff commanding the sea. Beowulf's body was burned on a vast funeral pyre, while twelve Geats rode around the mound singing their...

• Bees. It's a warm summer afternoon in a park or garden.

  become the queens. When a honey bee finds food, it tells other honey bees. The bee comes back to the hive with nectar. Itthen performs a dance. The bee’s movements tell the other bees where to look for this nectar. BUMBLEBEES If you go on a picnic, a yellow and black bumblebee may buzz by. Bumblebees have thick, hairy bodies.Their hair helps keep them warm. Only the queens live through the winter, however. The workers anddrones die. Like honey bees, bumblebees live in colonies. Bumblebees like t...

• United Nations.

  and programs to carry out its recommendations. It elects members to serve on certain agencies and programs, and it coordinates those programs through variouscommittees. B Security Council The Security Council is the most powerful body in the UN. It is responsible for maintaining international peace, and for restoring peace when conflicts arise. Its decisionsare binding on all UN members and have the force of international law. The Security Council has the power to define what is a threat to sec...

• Blankers-Koen Wins Fourth Gold Medal.

  Blankers-Koen's final event was the 4 x 100-meter relay. Her decision to enter the race revealed much about her character. Under Olympic rules, she could enter amaximum of four events. Even though she owned the world records for the long jump and high jump, she instead opted for the relay. She explained that a “team”victory would hold more meaning to her country and its citizens. Blankers-Koen's superb anchor leg clinched Holland's victory. Meanwhile, in the long jump,Hungary's Olga Gyarmati won...

• Elsewhere by gabriele zevin

• Excerpt from The Two Gentlemen of Verona - anthology.

  JULIA. Is he among these? HOST. Ay; but, peace! Let’s hear 'em. SONG:Who is Silvia? What is she,That all our swains commend her?Holy, fair, and wise is she;The heaven such grace did lend her,That she might admirèd be. Is she kind as she is fair?For beauty lives with kindness.Love doth to her eyes repair,To help him of his blindness;And, being helped, inhabits there. Then to Silvia let us singThat Silvia is excelling;She excels each mortal thingUpon the dull earth dwelling.To her let us garlands...

• Compositionality

  sentence construction, an operation on meanings, such that the meaning of any sentence is mechanically determined by applying the operations on meanings (given by the rules used in constructing the sentence) to the meanings of the simple parts. (Often a host of extra restrictions are incorporated. For example: the operations may be limited to applying function to argument; the order in which operations are applied may be settled by the structure of the sentence.) Some see such principles as prov...

• Mao ZedongIINTRODUCTIONMao Zedong (1893-1976), foremost Chinese Communist leader of the 20th century and the principal founder of the People's Republic of China.

  outside the government was also muted because the educated elite remembered the turmoil of the “Hundred Flowers” and “Antirightist” campaigns of 1957. Mao’srelationship with intellectuals was an uneasy one, and he was critical of the gap between the lives of the urban educated elite and the rural masses. These tensions wereamong the underlying causes of the Cultural Revolution, a period of social unrest and political persecution launched by Mao in 1966. Mao mobilized youth into the RedGuards to...

• Mao Zedong.

  outside the government was also muted because the educated elite remembered the turmoil of the “Hundred Flowers” and “Antirightist” campaigns of 1957. Mao’srelationship with intellectuals was an uneasy one, and he was critical of the gap between the lives of the urban educated elite and the rural masses. These tensions wereamong the underlying causes of the Cultural Revolution, a period of social unrest and political persecution launched by Mao in 1966. Mao mobilized youth into the RedGuards to...

• Mao Zedong - History.

  outside the government was also muted because the educated elite remembered the turmoil of the “Hundred Flowers” and “Antirightist” campaigns of 1957. Mao’srelationship with intellectuals was an uneasy one, and he was critical of the gap between the lives of the urban educated elite and the rural masses. These tensions wereamong the underlying causes of the Cultural Revolution, a period of social unrest and political persecution launched by Mao in 1966. Mao mobilized youth into the RedGuards to...

• Acquired Immunodeficiency Syndrome.

  child transmission is particularly prevalent in Africa. D Misperceptions About HIV Transmission The routes of HIV transmission are well documented by scientists, but health officials continually grapple with people’s unfounded fears concerning the potential for HIVtransmission by other means. HIV differs from other infectious viruses in that it dies quickly if exposed to the environment. No evidence has linked HIV transmission tocasual contact with an infected person, such as a handshake, huggi...

• Chromosome.

  chromosome breaks off and attaches to another chromosome. A translocation involving chromosomes 9 and 22 is linked to a type of leukemia called chronic myelogenicleukemia. On the sex chromosomes, problems arise in men when an abnormal gene is present on the X chromosome. With no healthy gene found on the Y chromosometo override the abnormal gene, disease may result. For example, men who inherit a mutated gene that causes hemophilia from their mother on the X chromosome willdevelop this bleeding...

• Comenius, John Amos

  enlightenment, peace, international co-operation and prosperity. This should be helped by the spread of education into all layers of society, and to each individual. The outbreak of the Civil War curtailed Comenius' activities in England. He left for Sweden to reform its educational system, hoping at the same time that Sweden's policy and participation in the Thirty Years' War might result in the liberation of the Kingdom of Bohemia from the rule of the Habsburgs and facilitate the repat...

• Iliad I INTRODUCTION The Abduction of Helen The Trojan War began with the abduction of Helen, the beautiful wife of the king of Sparta, by the Trojan prince Paris.

  Ajax Defends Greek ShipsThe Greek hero Ajax wields his spear in defense of Greek ships as Trojan warriors try to set the wooden vessels on firewith their torches. This encounter, shown in a late-18th-century illustration, occurs in Book 15 of the Iliad, an epicattributed to Greek poet Homer that recounts events from the Trojan War.Corbis Paris offers to fight a duel with Menelaus to settle the conflict. After an exchange of blows, Paris’s protector, the goddess Aphrodite, intervenes to save him....

• Lion - biology.

  Lions usually hunt at night, alone, or in groups. Their preferred prey are large hoofed mammals, such as zebras and wildebeests, but they will go after small hares aswell as huge giraffes. Typically, a lion hunting alone will slowly and silently stalk its prospective victim, trying not to be seen, until it is about 30 m (about 98 ft) away.Then with a burst of speed, the lion will run toward the prey, grab it, and throw it to the ground. The lion kills the prey by biting the back of the animal’s...

• Animal - biology.

  Vertebrates are customarily divided into cold-blooded and warm-blooded animals, but these labels are not very precise. Biologists normally use the terms ectoderm and endoderm to describe temperature regulation more accurately. An ectoderm is an animal whose temperature is dictated by its surroundings, while an endoderm is one that keeps its body at a constant warm temperature by generating internal heat. Reptiles, amphibians, and fish are ectoderms. Although they do not maintain a constant wa...

• Anthropology.

  humans, such as tools, pottery, and buildings) and human fossils (preserved bones). They also examine past environments to understand how natural forces, such as climate and available food, shaped the development of human culture. Some archaeologists study cultures that existed before the development of writing, a time knownas prehistory . The archaeological study of periods of human evolution up to the first development of agriculture, about 10,000 years ago, is also called paleoanthropology....

• 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...

• Sir Charles Tupper - Canadian History.

  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...

• Excerpt from Othello - anthology.

  MESSENGER. The Ottomites, reverend and gracious,Steering with due course toward the isle of Rhodes,Have there injointed with an after fleet. FIRST SENATOR. Ay, so I thought. How many, as you guess? MESSENGER. Of thirty sail; and now they do re-stemTheir backward course, bearing with frank appearanceTheir purposes toward Cyprus. Signor Montano,Your trusty and most valiant servitor,With his free duty recommends you thus,And prays you to believe him. DUKE. 'Tis certain then for Cyprus.Marcus Luccic...

• Exercise.

  broad, and most studies suggest a positive relationship between physical fitness and mental achievement. The relationship between regular aerobic exercise and cardiovascular health and longevity is well established. Regular exercise leads to a reduction in the risk ofcoronary heart disease, in which fatty deposits (plaque) form in blood vessels supplying the muscular wall of the heart, compromising oxygen delivery to the heartmuscle. In addition, with regular exercise the efficiency of the heart...

• Photosynthesis - biology.

  P680 in Photosystem II is now electron deficient because it has donated electrons to P700 in Photosystem I. P680 electrons are replenished by the water that has beenabsorbed by the plant roots and transported to the chloroplasts in the leaves. The movement of electrons in Photosystems I and II and the action of an enzyme split thewater into oxygen, hydrogen ions, and electrons. The electrons from water flow to Photosystem II, replacing the electrons lost by P680. Some of the hydrogen ions maybe...

• Jane Austen.

  years later.) Mansfield Park is Jane Austen’s most ambitious novel—in length, in variety of characterization, and in the scope of its theme. It centers on the effects of upbringing on personal morality in three families—the middle-class Bertrams, the fashionable Crawfords, and the impoverished Prices. Austen has been praised for her presentation ofthe complex relations between the members of the families, but as in Sense and Sensibility, she frustrates the expectations of her readers that the...

• 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...

• tALus AcheLous

  Il s'agit donc d'un droit, mais comme tout droit, son abus peut être sanctionné, au terme de la théorie de l'abus de droit. "La liberté consiste à pouvoir faire tout ce qui ne nuit pas à autrui" D'après Pierre Desproges: "on peut rire de tout mais pas avec n'importe qui". Ce qui amusera l'un risque de choquer l'autre. La portée de l'humour dépend du public et du sujet abordé. Ce qui juge le rire, c'est la nature des motivations dont il précède. Le rire peut être l'écho de tout ce qui...

• From Bulfinch's Mythology: Meleager and Atalanta - anthology.

  Althea, when the deed was done, laid violent hands upon herself. The sisters of Meleager mourned their brother with uncontrollable grief; till Diana, pitying thesorrows of the house that once had aroused her anger, turned them into birds. Atalanta The innocent cause of so much sorrow was a maiden whose face you might truly say was boyish for a girl, yet too girlish for a boy. Her fortune had been told, and itwas to this effect: 'Atalanta, do not marry; marriage will be your ruin.' Terrified...

• Martial Arts.

  These movements are based on stylized renditions of ancient kung fu arm and foot blows. C Tae Kwon Do Tae kwon do (Korean for 'way of hands and feet') was founded in 1955 by a group of masters led by Korean general Choi Hong Hi. It is the national sport and pastimeof Korea and is also popular throughout the world. Often referred to as Korean karate, tae kwon do is reputedly based on ancient Korean and modern Japanesemethods of combat. Basic to tae kwon do are many spectacular kicks, particularl...

• Black Death.

  disappeared in the West. V DISAPPEARANCE OF PLAGUE Plague became less common in Europe after the 1530s. The last plague in England was in 1665, the last in Western Europe in 1722. Numerous theories have beenoffered to explain the disappearance of plague. It has been argued that black rats, the primary carriers of plague, may have been replaced by larger brown rats that donot carry the infection. A second theory suggests that increased immunity among the rodents that carried the disease or chang...

• Black Death .

  disappeared in the West. V DISAPPEARANCE OF PLAGUE Plague became less common in Europe after the 1530s. The last plague in England was in 1665, the last in Western Europe in 1722. Numerous theories have beenoffered to explain the disappearance of plague. It has been argued that black rats, the primary carriers of plague, may have been replaced by larger brown rats that donot carry the infection. A second theory suggests that increased immunity among the rodents that carried the disease or chang...

• Artificial Intelligence.

  Work in AI has primarily focused on two broad areas: developing logic-based systems that perform common-sense and expert reasoning, and using cognitive andbiological models to simulate and explain the information-processing capabilities of the human brain. In general, work in AI can be categorized within three research anddevelopment types: symbolic, connectionist, and evolutionary. Each has characteristic strengths and weaknesses. A Symbolic AI Symbolic AI is based in logic. It uses sequences...

• Native American Literature I INTRODUCTION Leslie Marmon Silko Native American writer Leslie Marmon Silko is perhaps best known for her first novel, Ceremony (1977), a coming-of-age story about a young man of mixed Native American and white ancestry.

  SequoyahNative Americans did not use a complex written language before the immigration of Europeans to the Americas. In theearly 1820s the Cherokee leader Sequoyah developed an alphabet and written language for his native tongue. ManyCherokee learned the new written language readily, and in 1828 they published the first Native American newspaper,written in both Cherokee and English.THE BETTMANN ARCHIVE Before Native Americans came into contact with Europeans, many tribes supplemented the spoken...

• Kiribati - country.

  mainly from Japan, the European Union (EU), and Australia. Kiribati’s only major exports are copra (dried coconut meat), cultivated seaweed, and fish. The United States, Australia, and New Zealand are the leading purchasers ofthe country’s exports. Despite the cultivation of crops for local consumption, Kiribati is heavily dependent upon imported foods. Other imports include machinery andequipment, manufactured goods, and imported fossil fuels, which supply most of the country’s energy. Australi...

• Genetics - biology.

  construct identical buildings. Just as each contractor would require a full copy of the blueprint to construct a complete building, each new cell needs a complete copy ofan organism’s genetic information to function properly. Organisms use two types of cell division to ensure that DNA is passed down from cell to cell during reproduction. Simple one-celled organisms and other organisms thatreproduce asexually—that is, without the joining of cells from two different organisms—reproduce by a proces...

• Hurricane.

  V HOW HURRICANES ARE DETECTED AND MONITORED Since 1943 U.S. military and civilian aircraft have been flying into hurricanes to measure wind velocities and directions, the location and size of the eye, air pressures,and temperatures in different parts of the storm. A coordinated system of tracking hurricanes was developed in the mid-1950s, and steady improvements have beenmade over the years. In addition to reports from aircraft, geosynchronous weather satellites (since 1966) and ocean buoys tha...