288 résultats pour "performances"

• Politiques climatiques

  certain seuil de pollution. De plus, on peut noter qu'en France, en 2007, fut lancé le Grenelle de l'environnement, qui a donné naissance à de nouvelles réglementations. En effet, il y a par exemple la réglementation thermique 2012, l'obligation d'affichage de la performance énergétique des biens immobiliers, les émissions des substances dans l'air ambiant, l'élévation des objectifs en terme de recyclage des déchets et des emballages ménagers, etc. On peut donc voir que la réglementation touche...

• African Theater I INTRODUCTION African Theater, traditional, historical, and contemporary dramatic forms in Africa south of the Sahara.

  The period after World War II ended in 1945 led to the struggle for and achievement of independence in many African countries. The new nation-states were oftenestablished along colonial boundaries and power was handed over to a bourgeois class who had been educated in Europe. The epoch-making era of nationalismproduced a number of African playwrights who merged African theatrical traditions with European forms. These plays are still widely performed and read in many partsof the continent. Nigeri...

• African Theater I INTRODUCTION African Theater, traditional, historical, and contemporary dramatic forms in Africa south of the Sahara.

  The period after World War II ended in 1945 led to the struggle for and achievement of independence in many African countries. The new nation-states were oftenestablished along colonial boundaries and power was handed over to a bourgeois class who had been educated in Europe. The epoch-making era of nationalismproduced a number of African playwrights who merged African theatrical traditions with European forms. These plays are still widely performed and read in many partsof the continent. Nigeri...

• Robot.

  V IMPACT OF ROBOTS Robotic manipulators create manufactured products that are of higher quality and lower cost. But robots can cause the loss of unskilled jobs, particularly on assemblylines in factories. New jobs are created in software and sensor development, in robot installation and maintenance, and in the conversion of old factories and the designof new ones. These new jobs, however, require higher levels of skill and training. Technologically oriented societies must face the task of retra...

• Ballet I INTRODUCTION Tchaikovsky's The Nutcracker The Nutcracker is a classic ballet with music by Peter Ilyich Tchaikovsky.

  Joffrey Ballet SchoolTraining for classical ballet dancers must begin when the students are very young. Here, teacher Dorothy Lister workswith her pre-ballet class of six-year-olds at the Joffrey Ballet School. These students are learning the five basic positions ofclassical ballet.Susan Kunklin/Photo Researchers, Inc. Different systems of ballet training have evolved, named after countries (Russia, France) or teachers (Italian dancer Enrico Cecchetti, Danish choreographer AugustBournonville). T...

• oiseaux.

  Les oiseaux ont une ouïe très développée, malgré l’absence d’oreille externe (pavillon). La structure de l’oreille interne est également différente de celle des mammifères.Elle leur permet de percevoir deux sons séparés par un intervalle de deux millièmes de seconde, ce qui est dix fois mieux que la performance humaine. La gamme des sonsaudibles par les oiseaux est la même que celle de l’homme : les oiseaux ne perçoivent ni les infrasons, ni les ultrasons. 2.6. 3 Odorat et goût L’odorat des ois...

• Confucian philosophy, Japanese

  1 Confucian philosophy in early Japan The earliest extant Japanese histories record that in AD 285 - the actual date was probably a century or so later - Wani, of the Korean kingdom of Paekche, brought copies of the Analects (Lunyu ; in Japanese, Rongo ) of Confucius and the Qianziwen (Thousand Character Classic; Senjimon in Japanese) from Korea to Japan ( Confucian philosophy, Korean ). Even though most scholarship on Japan tends to identify this introduction of Confucian texts with...

• Learning.

  B1 Acquisition The acquisition phase is the initial learning of the conditioned response—for example, the dog learning to salivate at the sound of the bell. Several factors can affect the speed of conditioning during the acquisition phase. The most important factors are the order and timing of the stimuli. Conditioning occurs most quickly when theconditioned stimulus (the bell) precedes the unconditioned stimulus (the food) by about half a second. Conditioning takes longer and the response is...

• Animation I INTRODUCTION Finding Nemo A clown fish named Marlin, left, and his friend Dory search for Marlin's son in the computer-animated feature film Finding Nemo (2003).

  Animator at WorkAnimators use computers for every part of the animation process, from creating a storyboard (a scene-by-sceneillustration of the plot) to imitating camera movement. This animator is creating a scene for the motion picture Antz(1998).C. Lepetit/Liaison Agency If an animator is basing the animation project on drawings, one of the most common animation techniques, he or she will first create a series of rough sketches thatoften will be filmed in a pencil test (simple line drawings...

• Diving (underwater).

  compensator (or control) device (BCD or BC), which the diver wears as a vest. By adding air to the BCD, the diver becomes more buoyant and rises. By releasing air,the diver becomes less buoyant and sinks. With minor adjustments of air, the diver can achieve neutral buoyancy. A third hose attaches to pressure gauges that diversuse to monitor how much air remains in the tank. A fourth hose attaches to a backup breathing device called an alternate air source, or octopus. Divers also wear a belt w...

• Memory (psychology).

  memory span —how many items people can correctly recall in order. Researchers would show people increasingly long sequences of digits or letters and then ask them to recall as many of the items as they could. In 1956 American psychologist George Miller reviewed many experiments on memory span and concluded that peoplecould hold an average of seven items in short-term memory. He referred to this limit as “the magical number seven, plus or minus two” because the results of thestudies were so consi...

• Seattle - geography.

  Mountains. The area includes the suburban cities of Bellevue, Kirkland, Redmond, Renton, and Issaquah. The Eastside has become home to dozens of high-technologyindustries including Microsoft Corporation, ATL Ultrasound, Nintendo of America, divisions of The Boeing Company, and many other firms. In the 1960s commutersheaded to Seattle jobs from homes on the Eastside. Today, the “reverse commute” from Seattle homes to jobs on the Eastside is just as heavy, and both streams oftraffic cross the same...

• Dance I INTRODUCTION Dance Archive Films/BBC Worldwide Americas, Inc.

  features in its dance styles. The ordinary potential of the body can be expanded in dance, usually through long periods of specialized training. In ballet, for example, the dancer exercises to rotate,or turn out, the legs at the hips, making it possible to lift the leg high in an arabesque. In India, some dancers learn to choreograph their eyeballs and eyebrows.Costuming can extend the body's capabilities. Toe or pointe shoes, stilts, and flying harnesses are a few of the artificial aids employe...

• Native American Art I INTRODUCTION Native American Art, the visual works crafted by indigenous people of North America, starting after their arrival on the continent thousands of years ago and continuing until the present.

  artists in the Ohio area cut delicate flat forms from sheets of mica in the shape of birds, human figures, and large hands. They also carved quite natural-looking birdsand animals on stone platform pipes. These figures sat on the pipe’s flat base, or platform, and on some pipes they were part of the pipe bowl. Prominent people ofthese cultures were buried with a wealth of ornaments, such as jewelry of shells and copper, and headdresses elaborated with animal forms. The period of Mississippian cu...

• Library (institution).

  rooms, special galleries for exhibitions, auditoriums for lectures or concerts, computer rooms, children’s rooms, photocopy rooms, and classrooms. A3 Lending Materials As part of their mission to provide information resources to the community, public libraries allow users to borrow items from their collections for limited amounts of time.To be eligible to borrow public library materials, a user must register her or his name, address, and other basic information with the local library’s circulat...

• Mes pensées n'engagent-elles que moi?

  façonnés par un monde historique que nous ne choisissons pas ; nous sommes nés à une époque donnée dansun contexte social donné, et nous n'y pouvons rien. S'il a 20 ans quand la mobilisation générale l'envoie aufront combattre l'ennemi, pèse sur lui une série de contingences : c'est un homme, on ne mobilise pas lesfemmes dans son pays, il est citoyen d'un pays en guerre, donc mobilisable et à ce titre, tous ses projetssont suspendus, et il court même le risque absolu : celui de sa mort. [Les p...

• Modern Art I INTRODUCTION American Gothic American Gothic was painted by the 20th-century American artist Grant Wood in 1930.

  while at the other side a woman in black appears to mourn the end of her participation in the dance. Click on the buttonsto learn more.© Microsoft Corporation. All Rights Reserved. In view of this diversity, it is difficult to define modern art in a way that includes all of 20th-century Western art. For some critics, the most important characteristic ofmodern art is its attempt to make painting and sculpture ends in themselves, thus distinguishing modernism from earlier forms of art that had con...

• QU'EST-CE QUE LE DOPAGE ?

  I.           QU’EST­CE QUE LE DOPAGE ?  1) Conduites dopantes et dopage sportif est­ce la mê me      chose        ?   NON.  On parle de  conduite dopante  lorsqu’une substance   (m édicament, stup éfiant, ect.) est utilis ée dans le but de surmonter un   obstacle, que celui­ci soit r éel ou suppos é, à des fins de performance.   L’obstacle peut  être un examen, un entretien d’embauche, un travail   difficile et/ou p énible, une  épreuve sportive, ect. Le  dopage ,   lui ne concerne que les s...

• Johann Sebastian Bach.

  from his duties, and even tossed him into jail for “too obstinately requesting his dismissal.” But after several weeks the duke saw it was of no use and let him go. E Köthen: 1717-1723 Bach’s new employer, Leopold, loved and understood music and could play the violin, viola da gamba, and harpsichord as well as sing bass. The prince held Bach in highregard and stood as godfather for his seventh child. Bach, in turn, named the child Leopold August in his employer’s honor. Bach later said that the...

• Johann Sebastian Bach I INTRODUCTION Johann Sebastian Bach (1685-1750), German composer and one of the world's greatest musical geniuses.

  Bach served nine years at the Weimar court, first as organist and then, from 1714, as concertmaster as well. His employer, Wilhelm Ernst, duke of Weimar, was a greatadmirer of the organ, and spurred by the duke’s enthusiasm Bach proceeded to compose a vast number of unprecedented works for the instrument: the Orgelbüchlein (“Little Organ Book”), a collection of small chorale preludes for the church year; the so-called Great Eighteen Chorales of larger size; and a series of dramatic preludes a...

• One Hundred Years of Olympics.

  Getting over the Hurdles The next three Olympics attracted more athletes and saw stronger performances but otherwise did not measure up to Athens. The 1900 Paris Olympics were upstagedby the concurrent Exposition Universelle and were spread out over two months. The 1904 games in remote St. Louis were subordinated to the Louisiana PurchaseExhibition; over three-fourths of the competitors were Americans, and even Coubertin did not attend. The 1908 London Olympics were also overshadowed byanother...

• Wolfgang Amadeus Mozart.

  including the sacred style of church music and the so-called galant (courtly) idiom. The elegant though often superficial galant style dominated much instrumental music of the 1760s and 1770s. Mozart’s mastery often demonstrates itself in an ability to expand and deepen the stylistic possibilities of the time. The manner in which heextended the character and form of the concerto, for instance, owes much to his experience in writing operatic arias. A Musical Expressiveness In the masterful Je...

• Wolfgang Amadeus Mozart I INTRODUCTION Wolfgang Amadeus Mozart Wolfgang Amadeus Mozart, an 18th-century Austrian classical composer and one of the most famous musicians of all time, came from a family of musicians that included his father and sister.

  The opera, Mitridati, rè di Ponto (Mithridates, King of Pontus), was produced in 1770 in Milan under Mozart’s direction with success. Also that year the pope made Mozart a knight of the Order of the Golden Spur. A Salzburg and Germany From 1775 to 1780 Mozart was based mainly in Salzburg working for the archbishop Hieronymous von Colloredo. Although dissatisfied with the low pay and limitedopportunities his employment offered, Mozart composed many works during this period, including his first...

• Astronaut - astronomy.

  Every operation during a flight is important and interesting, but many might be boring to an observer. Much of an astronaut’s job is entering computer instructions,preparing samples, making measurements, recording data, fixing what breaks, and adjusting the checklist when something unexpected happens. Sometimes astronautsretrieve or repair satellites, rendezvous or dock with other spacecraft, and do important emergency repairs. The adaptability of the human crew is crucial to the successof missi...

• Rock Music I INTRODUCTION Carlos Santana Mexican-born guitarist Carlos Santana became a superstar in the late 1960s with a string of hits and an appearance at the famous Woodstock rock festival in 1969.

  point (a single pitch sustained through a progression of chords), and the parallel movement of chords, derived from a technique on the electric guitar known as bar-chording. Many elements of African American music have been a continuing source of influence on rock music. These characteristics include riffs (repeated patterns), backbeats (emphasizing the second and fourth beats of each measure; see Musical Rhythm: Pulse and Meter ), call-and-response patterns, blue notes (the use of certain...

• Culture.

  form of knowledge, such as scientific discoveries; objects, such as works of art; and traditions, such as the observance of holidays. C1 Ethnocentrism and Cultural Relativism Self-identity usually depends on culture to such a great extent that immersion in a very different culture—with which a person does not share common ways of life orbeliefs—can cause a feeling of confusion and disorientation. Anthropologists refer to this phenomenon as culture shock. In multicultural societies —societies s...

• Les mots ont-ils un pouvoir ?

  ou à l'autel, etc. « Oui [je le veux] », je ne fais pas le reportage d'un mariage : je me marie.Quel nom donner à une phrase ou à une énonciation de ce type ? Je propose de l'appeler une phrase performativeou une énonciation performative ou — par souci de brièveté — un « performatif ». Ce nom dérive, bien sûr, du verbe[anglais] perform, verbe qu'on emploie d'ordinaire avec le substantif « action » : il indique que produire l'énonciationest exécuter une action (on ne considère pas, habituellement...

• Le dopage (Travaux Personnels Encadrés – Médecine & Santé – TS)

  Les B-agonistes sont à la base de plusieurs médicaments contre l'asthme, comme la Ventoline ® (substance active : salbutamol). Certains sportifs en prennent illégalement dans le but d'augmenter la quantité d'air qu'ils peuvent inspirer (natation , athlétisme). Le salbutamol peut être par ailleurs employé pour masquer les amphétamines. LES ANALGtSIQUES NARCOTIQ UES Les principaux sont les opiacés : morphine, héroïne. La codéine, disponible sans pres...

• QUAND DIRE, C’EST FAIRE, John Langshaw Austin

  Le philosophe britannique John Austin a été rendu célèbre par la publication posthume d’une série de conférences rassemblées sous le titre évocateur How to Do Things with Words (en français : Quand dire, c’est faire). Elles constituèrent une rupture avec la philosophie traditionnelle du langage. Jusque-là, on considérait en effet que la plupart de nos phrases avaient pour vocation de décrire un « état de choses » (ce sont les énoncés qu’Austin nomme « constatatifs »). Mais certaines formules, l...

• Central Processing Unit.

  Development of the computer chip started in 1958 when Jack Kilby of Texas Instruments demonstrated that it was possible to integrate the various components of aCPU onto a single piece of silicon. These computer chips were called integrated circuits (ICs) because they combined multiple electronic circuits on the same chip.Subsequent design and manufacturing advances allowed transistor densities on integrated circuits to increase tremendously. The first ICs had only tens of transistorsper chip com...

• Computer Science.

  theoretical research is called algorithmic complexity. Computer scientists in this field seek to develop techniques for determining the inherent efficiency of algorithmswith respect to one another. Another area of theoretical research called computability theory seeks to identify the inherent limits of computation. Software engineers use programming languages to communicate algorithms to a computer. Natural languages such as English are ambiguous—meaning that theirgrammatical structure and vocab...

• Dentistry.

  Together with dentists, dental hygienists and dental assistants make up the team that provides dental care to patients. Hygienists record patient medical histories, suchas blood pressure and pulse. They clean teeth, apply sealants and fluoride treatments, teach patients sound oral hygiene practices, and often assist with X rays. Manyhygienists receive a two-year associate degree, while others may choose to enroll in a four-year program at a university or in a master’s degree program. There are25...

• Computer Memory.

  been created, information can be retrieved but not changed. Newer technologies allow ROMs to be semi-permanent—that is, the information can be changed, but ittakes several seconds to make the change. For example, a FLASH memory acts like a ROM because values remain stored in memory, but the values can be changed. C External Memory External memory can generally be classified as either magnetic or optical, or a combination called magneto-optical. A magnetic storage device, such as a computer'shar...

• Helicopter.

  naturally flaps down so as to increase lift. Flapping allows the differences in lift caused by uneven rotor tip speed to cancel out, producing a stable ride. Many helicoptersuse mechanical hinges with lubricated bearings, but some use flexible straps made of a composite material in order to reduce the required maintenance. Helicopters require different amounts of lift and thrust at different times during flight, because the aerodynamic forces acting on them change during hovering andacceleration...

• Atificiel

  Sustainability 2019,11 , 189 2 of 24Since the 1980s, many research was conducted to minimize the error of prediction through a method dubbed as gradient descent. This method is referred to as a Backpropagation algorithm for the training of the ANNs and it was applied to solve problems in different domains using few hidden layers [ 5,6]. Today, the availability of data has introduced the concept of machine learning as a subcategory to AI. Machine learning implies coding the computers to behave l...

• Surgery.

  III SURGICAL PROCEDURES Surgical procedures are classified as optional, required, elective, urgent, and emergent based on the patient’s medical condition. Optional surgery consists of operationsthat are not required but which the patient chooses to undergo as with some types of cosmetic surgery. Required surgery is performed when only surgery will correct aproblem—such as cataracts—but the surgery can be delayed for a period of weeks or months. Elective surgical procedures usually involve cond...

• Nanotechnology.

  ever-finer method of reducing material to the nanoscale size. Instead, nanostructures would be assembled atom by atom and molecule by molecule, from the atomiclevel up, just as occurs in nature. However, assembly at this scale has its own challenges. In school, children learn about some of these challenges when they study the random Brownian motion seen in particles suspended in liquids such as water. Theparticles themselves are not moving. Rather, the water molecules that surround the particles...

• 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...

• Christmas.

  The new custom of Christmas gift giving allowed the marketplace to exert an unprecedented influence on holiday celebrations. Commercial innovations such asdepartment stores and mass advertising further expanded the custom of exchanging Christmas gifts. Seasonal retail sales helped fuel the economy, causing merchantsand advertisers to become some of the season’s most ardent promoters. Many holiday celebrants regretted these changes, however, and began voicing the nowcommon lament that Christmas h...

• Western Music I INTRODUCTION Bizet's Carmen Georges Bizet's Carmen, first performed in Paris in 1875, was a milestone in the history of French opera.

  church ceremonies during the period from the 5th to the 7th century. Roman chant became known as Gregorian chant after Pope Gregory I, the Great, who may havecomposed some of the melodies and who actively encouraged an orderly, ritualized use of music by the church. Because Gregory and later popes preferred Gregorianchant to the varieties that had developed elsewhere in Europe, Gregorian chant eventually superseded most of the others. Gregorian and other chant styles arepreserved in many manuscr...

• Austin : dire, c'est faire

  «je vous décl are ma ri et femme ••, il ne constate pas un état de fait, il le réalise en le pr ocl am a nt! De même, quand je dis« je parie cinq euros qu 'il va pleuvoir>>, ma phrase est mo ins une description qu'une acti on- celle de parier. Ces énoncés atypiques, ap pe lés« performatifs», ne sont ni vrais ni faux: il s'agit plutôt d'actes suscept ibl es de réuss ir ou d'échouer. Ainsi les mots ne se co nt entent pas de t...

• Décidément, le modèle " néerlandais " continue d'intriguer, tant ses performances contrastent avec celles de ses voisins. L'année 1997 est...

  Décidément, le modèle " néerlandais " continue d'intriguer, tant ses performances contrastent avec celles de ses voisins. L'année 1997 est apparue dans le prolongement de la précédente avec une croissance de 3,2 %, d'un demi-point supérieure à celle de 1996, et surtout un taux de chômage de seulement 4,6 % fin 1997 (contre 6,4 % fin 1996), inférieur de plus de moitié aux taux belge et allemand et de près des deux tiers au taux français. Le pays s'est bien sûr vu qualifier pour faire partie dès l...

• données, transmission de - informatique.

  Dans le cas simple d’un ordinateur isolé, les distances parcourues par les données à transmettre étant relativement courtes, l’objectif est d’obtenir de très grandes vitesses de transfert. En général, le microprocesseur, la mémoire vive, les contrôleurs de disque, le système d’affichage vidéo et autres interfaces sont reliés par des sortes d’autoroutes électroniques appelées bus, assurant chacune le transport d’un type spécifique d’informations (données, adresses, etc.). Chaque bus se compose d’...

• Comedy I INTRODUCTION Laurel and Hardy Stan Laurel, in overalls, and Oliver Hardy, left, formed one of the most popular comedy teams in motion-picture history.

  The elements and techniques of comedy are diverse and differ from culture to culture. More than tragedy or serious drama, comic entertainment is controlled by socialconventions that define the boundaries of acceptable humor and topics that are taboo or off-limits for humor. What is considered funny in one place and time may beforbidden culturally or viewed as infantile or in poor taste in another. Virtually every component of human behavior is subject to comic treatment. This includes bodilyfunc...

• In-Line Skating.

  the foot using a combination of laces and buckles. Many skaters prefer a simple closure system that has laces on the lower portion of the skate and a buckle at the top.The boot liner is made of a soft, padded, cloth portion that fits inside the outer shell. Boot liners should be vented, which keeps the feet cool by allowing perspiration toescape during strenuous workouts or long trips. Attached to the bottom of each skate is the wheel frame. The frame houses from three to five wheels. The wheels...

• Computer.

  which can activate computer commands in conjunction with voice recognition software. “Tablet” computers are being developed that will allow users to interact with theirscreens using a penlike device. E The Central Processing Unit Information from an input device or from the computer’s memory is communicated via the bus to the central processing unit (CPU), which is the part of the computerthat translates commands and runs programs. The CPU is a microprocessor chip—that is, a single piece of sil...

• Folktales I INTRODUCTION "Little Red Riding Hood" The popular children's story "Little Red Riding

  seemed important to them. Thus, the Grimms postulated a common Indo-European origin for folktales, and the German philologist Theodor Benfey as well as theScottish writer William Clouston believed that stories diffused by way of travelers migrating east and west from India. Such theories, however, have proven incompleteand inadequate. Nevertheless, the research of these and other scholars greatly stimulated interest in folklore and folktales. The German scholar Max Muller held thatmyths originat...

• Automobile.

  Electric motors have been used to power automobiles since the late 1800s. Electric power supplied by batteries runs the motor, which rotates a driveshaft, the shaftthat transmits engine power to the axles. Commercial electric car models for specialized purposes were available in the 1980s. General Motors Corporation introduced amass-production all-electric car in the mid-1990s. Automobiles that combine two or more types of engines are called hybrids. A typical hybrid is an electric motor with ba...

• Banking.

  loans, and some commercial loans in addition to checking accounts and time deposits. Credit unions, SLAs, and savings banks help encourage thriftiness by paying interest to consumers who put their money in savings deposits. Consequently, creditunions, SLAs, and savings banks are often referred to as thrift institutions. Of the various types of banks in the United States, commercial banks account for the greatest single source of the financial industry’s assets. In 2000 the 8,528commercial banks...

• Chine 2002-2003 Une tranquille affirmation Sur fond de résultats économiques toujours performants – investissements étrangers, exportations en hausse, forte croissance...

  Chine 2002-2003 Une tranquille affirmation Sur fond de résultats économiques toujours performants – investissements étrangers, exportations en hausse, forte croissance intérieure (8,0 %) –, l'actualité politique était dominée par la préparation du XVIe congrès du Parti communiste chinois (PCC) avec le retrait (en apparence) du président Jiang Zemin et l'arrivée de la «quatrième génération» de dirigeants. Le cadre gouvernemental devait attendre la session de l'Assemblée nationale populaire de ma...