(from the article "calcite") ...test that is widely used to identify it, especially in the field. This test is based on the fact that calcite reacts with dilute hydrochloric acid (HCl), and the reaction ...
(from the article "drug") ...which is the formation of the drug-receptor complex, and receptor activation, which moderates the effect. The term affinity describes the tendency of a drug to bind to a receptor; efficacy ...
(from the article "automobile") The efficiency of an automobile engine is highest when the load on the engine is high and the throttle is nearly wide open. At moderate speeds on level pavement, the ...
(from the article "marketing") Efficiency control involves micro-level analysis of the various elements of the marketing mix, including sales force, advertising, sales promotion, and distribution. For example, to understand its sales-force efficiency, a company ...
(from the article "metaphysics") ...on, so that they become what they have it in themselves to be rather than by acting as a constant efficient cause (i.e., the agent that initiates the process of ...
(from the article "economics") ...journalism, only since the late 20th century was the stock market recognized as an institution suitable for economic analysis. This recognition turned on a changed understanding of the "efficient market ...
(from the article "elastomer") ...thiurams, or thiazoles), which make the sulfur interlinking reaction occur faster and more efficiently. When the ratio of sulfur to accelerator is less than one, the recipe is known as ...
(from the article "metalwork") There remain in England 10 effigies cast in bronze over a period of two centuries (1290-1518), among them some of the finest examples of figure work and metal casting to ...
(from the article "mask") ...preserved as ancestor portraits and were displayed on ceremonial occasions. Such masks were usually modeled over the features of the dead and cast in wax. This technique was revived in ...
earthen mound in the form of an animal or bird found throughout the north-central United States. Prehistoric Native Americans built a variety of earth berm structures in addition to effigy ... [1 Related Articles]
area of 4 square miles (10 square km) containing numerous ancient Native American burial and ceremonial mounds in northeastern Iowa, U.S., on the Mississippi River, a few miles north of ...
city, seat (1860) of Effingham county, east-central Illinois, U.S. It lies near the Little Wabash River, about 65 miles (105 km) southeast of Decatur. Settled about 1814 by farmers, the ...
(from the article "massage") There are three forms of hand manipulation employed in therapeutic massage. They are: light or hard stroking (effleurage), which relaxes muscles and improves circulation to the small surface blood vessels ...
spontaneous loss of water by a hydrated salt, which occurs when the aqueous vapor pressure of the hydrate is greater than the partial pressure of the water vapour in the ...
(from the article "mining") Increasing attention has been devoted to the extraction of salts from brines discharged as effluent after the distillation of fresh water from seawater. By using these brines for the extraction ...
(from the article "environmental works") For the removal of additional suspended solids and BOD from secondary effluent, effluent polishing is an effective treatment. It is most often accomplished using granular media filters, much like the ...
(from the article "environmental works") ...the "maximum beneficial use" of the water. Water quality parameters that are regulated by stream standards include dissolved oxygen, coliforms, turbidity, acidity, and toxic substances. Effluent standards, on the other ...
(from the article "electromagnetism") ...between the objects and is grossly affected by intervening matter. Gilbert attributed the electrification of a body by friction to the removal of a fluid, or "humour," which then left ...
town, Ondo state, southwestern Nigeria, in the Yoruba Hills, at the intersection of roads from Ilesha, Ondo, and Ado-Ekiti. It was probably founded in the late 19th century, when both ...
(from the article "gas") Consider the system described above in the calculation of gas pressure, but with the area A in the container wall replaced with a small hole. The number of molecules that ...
(from the article "volcano") ...and in this section two specific eruptions are compared-the 1991 eruption of Mount Pinatubo (a classic example of explosive volcanism) and the 1984 eruption of Mauna Loa (illustrative of effusive ...
people inhabiting the lower Cross River in Cross River state, Nigeria; their dialect of Efik-Ibibio (in the Benue-Congo branch of Niger-Congo languages) has become the literary language of all educated ... [2 Related Articles]
(from the article "Efik") people inhabiting the lower Cross River in Cross River state, Nigeria; their dialect of Efik-Ibibio (in the Benue-Congo branch of Niger-Congo languages) has become the literary language of all educated ...
(from the article "Bulgarian Orthodox Church") The Bulgarian patriarchate was revived in the city of Turnovo in 1235 by Tsar Ivan Asen II, but with the fall of Turnovo to the Turks (1393), the last patriarch, ...
small mountainous group of islets belonging to Italy, in the Mediterranean just off the western coast of Sicily, with a total area of 15 square miles (39 square km). The ...
Somali politician (b. Aug. 15, 1928, Odweyne, British Somaliland Protectorate-d. May 3, 2002, Pretoria, S.Af.), as president (from 1993) of the self-proclaimed Republic of Somaliland, established an island of relative ... [1 Related Articles]
(from the article "human rights") The second generation of economic, social, and cultural rights originated primarily in the socialist tradition, which was foreshadowed among adherents of the Saint-Simonian movement of early 19th-century France and variously ...
American clergyman (b. Oct. 9, 1916, New York, N.Y.-d. May 19, 2001, Chicago, Ill.), was a Roman Catholic priest who became a noted social activist. Egan was ordained in 1943. ...
Portuguese neurologist and statesman who was the founder of modern psychosurgery. With Walter Hess he was awarded the 1949 Nobel Prize for Physiology or Medicine for the development of prefrontal ... [2 Related Articles]
(from the article "Abeokuta") Abeokuta ("Refuge Among Rocks") was founded about 1830 by Sodeke (Shodeke), a hunter and leader of the Egba refugees who fled from the disintegrating Oyo empire. The town was also ...
(from the article "Yoruba") ...the authority of a headman, share certain names and taboos, worship their own deity, and have rights in lineage lands. The Yoruba also have several kinds of voluntary associations, including ...
(from the article "Awolowo, Obafemi") ...to be a teacher and later worked as a clerk, trader, and newspaper reporter while organizing trade unions in his spare time. He went to London to study law in ...
king of the West Saxons from 802 to 839, who formed around Wessex a kingdom so powerful that it eventually achieved the political unification of England (mid-10th century). [2 Related Articles]
(from the article "Ekoi") ...forces are also emphasized in Ekoi worship. Various Ekoi cults are devoted to the welfare of common activities, such as farming. Before the establishment of British colonial administration, the egbo ...
(from the article "Eskimo-Aleut languages") The first book in an Eskimo language was published in 1742 by Hans Egede, a Dano-Norwegian missionary to Greenland. It was printed in the current Roman alphabet.history of Greenland
(from the article "rederijkerskamer") ...of the kamers had degenerated into mutual admiration societies for poetasters; this, coupled with the new laws against public assemblies and the religious upheavals, led to their decline. The Egelantier ...
(from the article "Western sculpture") ..."Apotheosis of Prince Eugene" (1721; Osterreichische Galerie, Vienna) and above all in the sculptural decoration of the Zwinger in Dresden initiated during the second decade. Paul Egell was a pupil ...
(from the article "Comedy of Errors, The") Egeon, a merchant of Syracuse, is arrested in Ephesus because of hostilities between the two cities and, unable to pay the local ransom, is condemned to death. He tells the ...
city of county status and seat of Heves megye (county), northern Hungary. It lies in the valley of the Eger River, which is a tributary of the Tisza, between the ... [1 Related Articles]
(from the article "Germany") ...and blockades instituted by the princes. The protracted campaigns also exhausted the financial resources of the princes. When Wenceslas intervened in 1389, both parties were ready for peace. At the ...
in Roman religion, a water spirit worshiped in connection with Diana at Aricia and also with the Camenae in their grove outside the Porta Capena at Rome. Like Diana, she ... [1 Related Articles]
(from the article "Nakuru") ...the Kikuyu people's homeland. During the colonial period, Nakuru was a centre of European activity. Now one of the largest towns in Kenya, Nakuru is an important agricultural centre and ...
(from the article "Ellesmere Island") ...by Vikings in the 10th century. It was seen in 1616 by the explorer William Baffin and was named in 1852 by Sir Edward A. Inglefield's Expedition (which navigated the ...
(from the article "Funen") ...(grave enclosed by standing stones in the form of a ship) west of Odense. Always a stronghold of the Danish aristocracy, Funen is rich in old castles and manor houses. ...
(from the article "digestion") Animals that ingest bulk food unavoidably take in some matter that they are incapable of using. In the case of unicellular organisms that form food vacuoles, the vacuoles eventually fuse ...
in biology, the female sex cell, or gamete. In botany the egg is sometimes called a macrogamete. In zoology the Latin term for egg, ovum, is frequently used to refer ... [49 Related Articles]
(from the article "candy") Although their consistency is similar to that of caramels, nougats usually do not contain milk. They are aerated by vigorously mixing a solution of egg albumin or other similar protein ...
(from the article "dinosaur") Egg Mountain, as the area was named, produced some of the most important clues to dinosaurian habits yet found. For example, the sites show that a number of different dinosaur ...
(from the article "insect") ...commonly pierced by respiratory openings that lead to an air-filled meshwork inside the shell. For some insects (e.g., cockroaches and mantids) a batch of eggs is cemented together to form ...
(from the article "spider") Female spiders produce either one egg sac containing several to a thousand eggs or several egg sacs each with successively fewer eggs. Females of many species die after producing the ...
(from the article "gastropod") ...age; common on rocks and clamshells and in dead large snail shells in most oceans.Cowrie shells (Cypraeidae) and egg shells (Ovulidae) have highly polished and brilliantly coloured shells; mantle, ...
tooth or toothlike structure used by the young of many egg-laying species to break the shell of the egg and so escape from it at hatching. Some lizards and snakes ... [3 Related Articles]
(from the article "egg") The structural components of the egg are shown in Figure 1. They include the shell and shell membranes (10 percent); the albumen or white (60 percent), including the thick albumen, ...
any of the five species of the genus Dasypeltis of sub-Saharan Africa and Elachistodon westermanni of northeastern India. These nonvenomous snakes comprise the subfamily Dasypeltinae, family Colubridae. Members of [1 Related Articles]
(from the article "painting") Egg tempera is the most durable form of the medium, being generally unaffected by humidity and temperature. It dries quickly to form a tough film that acts as a protective ...
(from the article "painting, Western") ...as incongruity and dissociation, a process that led the way to Surrealism. Finally and almost incidentally, they asked, if the presentation of movement is proper to art, why not movement ...
(from the article "American literature") ...grinding conditions of Irish slum life; Anne Roiphe's bittersweet recollections of her rich but cold-hearted parents and her brother's death from AIDS in 1185 Park Avenue (1999); and Dave Eggers's ...
(from the article "Roncesvalles") ...mountains to Aquitaine after Charlemagne, campaigning against the Muslims in Spain, had ravaged several towns south of the Pyrenees and had razed Pamplona. The Frankish army was led by the ...
inscribed stone that bears 200 runic characters. It is the longest known text in the old-style futhark (runic alphabet) and was discovered inside a tomb in western Norway in 1917. ...
(from the article "Art and Art Exhibitions") ...of Modern Photography," at Howard Greenberg Gallery, and "Seventies Color Photography," at Marianne Boesky Gallery. The work of such artists as Richard Misrach, Joel Sternfeld, and William Eggleston-all of whom ...
(Solanum melongena), tender perennial plant of the nightshade family (Solanaceae), closely related to the potato. Eggplant requires a warm climate and is grown extensively in eastern and southern Asia and ... [6 Related Articles]
(from the article "insect") Most insects begin their lives as fertilized eggs. The chorion, or eggshell, is commonly pierced by respiratory openings that lead to an air-filled meshwork inside the shell. For some insects ...
Chinese porcelain characterized by an excessively thin body under the glaze. It often had decoration engraved on it before firing that, like a watermark in paper, was visible only when ... [3 Related Articles]
(from the article "Latin American architecture") The cathedral of Cuzco, built in the mid-1650s, includes a complex and ornate portal applied to an austere surface flanked by two bell towers. The project, which was attributed to ...
one of the greatest of Icelandic skaldic poets, whose adventurous life and verses are preserved in Egils saga (c. 1220; translated in The Sagas of Icelanders), attributed ... [1 Related Articles]
(from the article "Fort Walton Beach") Eglin Air Force Base, established in 1935 and covering some 725 square miles (1,900 square km), is located north and west of the city and (together with adjacent Hurlburt Field) ...
(from the article "Encina, Juan del") ...(c. 1484) and at the University of Salamanca (before 1490), Encina entered the service of the Duke of Alba as a resident poet-dramatist-composer in 1492. He wrote for the court ...
leader in the early opposition to the policies of Philip II of Spain in the Netherlands. Although Egmond did not favour the overthrow of Spanish sovereignty, he became one of ... [5 Related Articles]
(from the article "Balkans") ...united of any time in their history, with a common legal system, a single ultimate arbiter of political power, and absolute military security. In addition, a vibrant commerce was conducted ...
(from the article "children's literature") ...in air force adventures; the prolific, widely translated Aimee Sommerfelt, whose works range from "puberty novels" to faraway stories set in Mexico City and northern India; Thorbjorn Egner, who is ...
in psychoanalytic theory, that portion of the human personality which is experienced as the "self" or "I" and is in contact with the external world through perception. It is said ... [12 Related Articles]
(from the article "superego") ...by which the ego operates. The superego's criticisms, prohibitions, and inhibitions form a person's conscience, and its positive aspirations and ideals represent one's idealized self-image, or "ego ideal."
(from the article "human behaviour") ...is preoccupied with his physical self in a world of new stimuli, so the adolescent may be preoccupied with his own thinking in a world of new ideas. Such preoccupation ...
(from Latin ego, "I"), in philosophy, an ethical theory holding that the good is based on the pursuit of self-interest. The word is sometimes misused for egotism, the overstressing of ... [4 Related Articles]
Canadian film director Atom Egoyan, no stranger to the awards podium, cemented his reputation in 1997 when his latest movie, The Sweet Hereafter, won the Grand Jury Prize, the International ...
any member of several species of herons (family Ardeidae, order Ciconiiformes), especially members of the genus Egretta. Most egrets have white plumage and develop long ornamental nuptial plumes for the ... [1 Related Articles]
(from the article "egret") any member of several species of herons (family Ardeidae, order Ciconiiformes), especially members of the genus Egretta. Most egrets have white plumage and develop long ornamental nuptial plumes for the ...
(from the article "Hamid Dynasty") ...father, Ilyas, was a frontier ruler under the Seljuqs and who named it after his grandfather; Dundar governed the Hamid principality jointly with his brother Yunus, with two capitals, one ...
(from the article "African dance") ...close-fitting head and body coverings, which permit rapid, staccato movements while dancing at the "second burial" (i.e., the post-burial celebrations) of a leader of the community. The Egungun ancestral masqueraders ...
(from the article "African dance") ...of ritual leadership. Masked stilt dancers, such as those of the Makonde of Tanzania, are largely restricted to rhythmic strides and gestures; in contrast, the simple cloth costumes of ancestral ...
country located in the northeastern corner of Africa. Egypt's heartland, the Nile River valley and delta, was the home of one of the principal civilizations of the ancient Middle East ... [68 Related Articles]
civilization in northeastern Africa dating from the 3rd millennium BC. Its many achievements, preserved in its art and monuments, hold a fascination that continues to grow as archaeological finds expose ... [117 Related Articles]
horizontally striped red-white-black national flag with a central coat of arms in the form of a gold eagle. The flag has a width-to-length ratio of 2 to 3.
(from the article "Egypt") This section presents the history of Egypt from the Islamic conquests of the 7th century AD until the present day. For a discussion of Egypt's earlier history, see Egypt, ancient.ancient ...
(from the article "architecture") Arches were known in Egypt and Greece but were considered unsuitable for monumental architecture. In Roman times the arch was fully exploited in bridges, aqueducts, and large-scale architecture. New forms ...
dating system established several thousand years before the Christian era, the first calendar known to use a year of 365 days, approximately equal to the solar year. In addition to ... [7 Related Articles]
(from the article "cobra") ...in Africa, are spitters. Venom is accurately directed at the victim's eyes at distances of more than two metres and may cause temporary, or even permanent, blindness unless promptly washed ...
(from the article "anseriform") ...(Anser cygnoides) of eastern Asia has also been domesticated, with three varieties. Other species, such as the Canada goose (Branta canadensis), the mute swan, and the Egyptian goose (Alopochen aegyptiacus), ...
(from the article "mongoose") ...cobras. The 37 species belong to 18 genera. The most common and probably best-known are the 10 species of the genus Herpestes, among which are the Egyptian ...
