A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9 Diego de Osma ... diffusion layer Diego de Osma (from the article "Dominic, Saint") ...then joined the canons regular (a religious community attached to the cathedral of a diocese) ... Diego Garcia coral atoll, largest and southernmost member of the Chagos Archipelago, in the central Indian Ocean, ... [6 Related Articles] Diego, Gerardo Spanish musicologist and prolific, innovative poet. [1 Related Articles] Diegodendron humbertii (from the article "Malvales") Diegodendron consists of a single species, D. humbertii, which is an evergreen tree that grows ... Diegueno a group of Yuman-speaking North American Indians who originally inhabited large areas extending on both ... [4 Related Articles] Dielasma genus of extinct brachiopods, or lamp shells, that occur as fossils in rocks deposited in ... dieldrin (from the article "dieldrin") chlorine-containing organic compound used as an insecticide; see aldrin.for more content related to this topic Diele (from the article "East Friesland") ...with their fields extending at right angles in long, narrow strips. The traditional single-story Frisian ... dielectric insulating material or a very poor conductor of electric current. When dielectrics are placed in ... [7 Related Articles] dielectric constant property of an electrical insulating material (a dielectric) equal to the ratio of the capacitance ... [7 Related Articles] dielectric heating method by which the temperature of an electrically nonconducting (insulating) material can be raised by ... [1 Related Articles] dielectric loss (from the article "capacitance") ...plates, the charges must be displaced through the dielectric first in one direction and then ... dielectric polarization (from the article "liquid") Nonionic liquids (those composed of molecules that do not dissociate into ions) have negligible conductivities, ... dielectric relaxation (from the article "relaxation phenomenon") ...physical relaxation processes. Peter Debye referred to the time required for dipolar molecules (ones whose ... Diels, Hermann (from the article "classical scholarship") ...of Berlin its special lustre, revitalized the study of Plato. Eduard Zeller (1814-1908) wrote a ... Diels, Otto Paul Hermann German organic chemist who with Kurt Alder was awarded the Nobel Prize for Chemistry in ... [1 Related Articles] Diels-Alder reaction (from the article "butadiene") ...molecules, as acrylonitrile or styrene, to form elastic, rubberlike materials. In uncatalyzed reactions with reactive ... Diemen, Anthony van colonial administrator who as governor general of the Dutch East Indian settlements (1636-45) consolidated the ... [1 Related Articles] Diemer, Louis-Joseph French pianist and teacher who was one of the first advocates of early keyboard music ... Diemer, Walter E. American businessman who was working as an accountant for the Fleer Chewing Gum Co. when ... Diemerbroeck, Isbrand van (from the article "death") ...soul was an essentially human attribute and was the basis of thought, judgment, and responsibility ... Dien Bien Phu, Battle of the decisive engagement in the first Indochina War (1946-54). It consisted of a struggle between ... [9 Related Articles] diene (from the article "hydrocarbon") Compounds that contain two double bonds are classified as dienes, those with three as trienes, ... Dienes, Valeria dancer, teacher, and choreographer, considered the most important exponent of the Hungarian tradition in movement ... Dientzenhofer, Christoph German architect who was a leading builder in the Bohemian Baroque style. [1 Related Articles] Dientzenhofer, Kilian Ignaz German architect who was one of the leading Bohemian Baroque builders. Dieppe town and seaport, northern France, Seine-Maritime departement, Haute-Normandie region, on the English ... Dieppe raid (from the article "Dieppe") ...the Protestants of the town were persecuted after the revocation of the Edict of Nantes; ... Diervilla lonicera (from the article "bush honeysuckle") ...roots and form patches in rocky, dry areas. Flowering occurs in early summer. The yellow ... Diervilla rivularis (from the article "bush honeysuckle") ...patches in rocky, dry areas. Flowering occurs in early summer. The yellow or reddish-yellow blooms ... Diervillaceae (from the article "Dipsacales") Diervillaceae contains 2 genera, Diervilla, with 3 North American species, and Weigelia, with 10 East ... Dies irae (Latin: "Day of Wrath"), the opening words of a Latin hymn on the Last Judgment, ... [1 Related Articles] Dies, Martin, Jr. American politician, the sponsor and first chairman (1938-45) of the House Committee on Un-American Activities. diesel (from the article "railroad") In the first half of the 20th century, advances in railroad technology and operating practice ... diesel engine any internal-combustion engine in which air is compressed to a sufficiently high temperature to ignite ... [15 Related Articles] diesel fuel (from the article "The Environment") In the United States a new diesel-fuel usage standard from the Environmental Protection Agency came ... Diesel, Rudolf German thermal engineer who invented the internal-combustion engine that bears his name. He was also ... [3 Related Articles] diesinking process of machining a cavity in a steel block to be used for molding plastics, ... diestrus (from the article "dog") At about the 14th day, or whenever estrus ends, the final, or luteal, stage of ... diet (from the article "Health and Disease") In 2005 the U.S. Department of Agriculture released a redesigned food-guide pyramid, which presented the ... Diet legislature of the German empire, or Holy Roman Empire, from the 12th century to 1806. [12 Related Articles] Diet the national legislature of Japan. [7 Related Articles] Diet Coke (from the article "Goizueta, Roberto Crispulo") Goizueta was equally involved with the firm's marketing strategy. He created the slogan "Coke is ... Diet of Worms meeting of the Diet (assembly) of the Holy Roman Empire held at Worms, Germany, in ... [8 Related Articles] dietary guideline (from the article "nutrition, human") Following the publication of dietary goals for the Nordic countries in 1968 and for the ... dietary law any of the prescriptions as to what may or may not be eaten under particular ... [3 Related Articles] Dietary Reference Intake (from the article "nutrition, human") During the 1990s a paradigm shift took place as scientists from the United States and ... Dietenberger, Johann (from the article "biblical literature") ...the failure of attempts to repress it led to the creation of German Catholic versions, ... Dieterle, William (from the article "1937: Best Picture") ...screen biography and scored another hit. Paul Muni (AAN) delivered an acclaimed performance as Zola, ... Dieth, Eugene (from the article "linguistics") ...are now working on regional atlases that will complement data contained in the Atlas linguistique ... diethyl malonate (from the article "carboxylic acid") Of much greater importance than malonic acid is its diethyl ester, CH2(COOCH2CH3)2, called diethyl malonate. ... diethyl sulfate (from the article "organosulfur compound") Esters of sulfuric acid-such as dimethyl sulfate, MeOSO2OMe, and diethyl sulfate, EtOSO2OEt, made from the ... diethylamine (from the article "heterocyclic compound") ...resemble those for their acyclic (noncyclic, or open-chain) analogs. Thus, pyrrolidine may be considered as ... diethylcarbamazine synthetic anthelmintic drug effective against certain parasitic filarial worms, which are endemic throughout most of ... [1 Related Articles] diethylene glycol (from the article "Health and Disease") ...in China were found to be tainted or were recalled because of health and safety ... diethylstilbestrol nonsteroidal synthethic estrogen used as a drug and formerly used to promote growth of livestock. ... [3 Related Articles] diethylzinc (from the article "organometallic compound") ...salt as an organometallic compound. A development with a more immediate impact on the field ... dieting regulating one's food intake for the purpose of improving one's physical condition, especially for the ... [2 Related Articles] Dietrich von Bern heroic figure of Germanic legend, apparently derived from Theodoric the Great, an Ostrogothic king of ... Dietrich, Josef German SS officer who commanded Adolf Hitler's bodyguard and later led an SS panzer (armoured) ... [2 Related Articles] Dietrich, Marlene German American motion-picture actress whose beauty, voice, aura of sophistication, and languid sensuality made her ... [2 Related Articles] Dietterlin, Wendel (from the article "Western architecture") ...with medallions, herms (i.e., architectural elements topped by human busts), and caryatids and atlantes (i.e., ... Dietz, Ferdinand (from the article "Western sculpture") Until his death Johann Wolfgang van der Auvera was the most powerful personality in the ... Dietz, Howard American motion-picture executive and songwriter. Dietz, Robert S. American geophysicist and oceanographer who set forth a theory of seafloor spreading in 1961. [4 Related Articles] Dieudonne, Jean French mathematician and educator known for his writings on abstract algebra, functional analysis, topology, and ... [1 Related Articles] Dieulafoy, Marcel-Auguste French archaeologist and civil engineer who excavated the palaces of the ancient Persian kings Darius ... [1 Related Articles] Dieva deli (from the article "Dievs") Dievs has two sons (Dieva deli in Latvian; Dievo suneliai in Lithuanian), who are known ... Dievaitis (from the article "Meness") in Baltic religion, the moon, the god whose monthly renewal of strength is imparted to ... Dievs in Baltic religion, the sky god. Dievs and Laima, the goddess of human fate, determine ... [1 Related Articles] Diez, Friedrich Christian German-born language scholar who made the first major analysis of the Romance languages and thus ... differance (from the article "Derrida, Jacques") ...that equates linguistic meaning with the ideas and intentions in the mind of the speaker ... Difference Between a Tribe and a Band, The (from the article "The Difference Between a Tribe and a Band") Although many indigenous peoples, particularly those of Canada, have adopted the word Difference Engine an early calculating machine, verging on being the first computer, designed and partially built during ... [1 Related Articles] Difference Engine No. 2 (from the article "Babbage, Charles") ...The Analytical Engine, however, was never completed. (See the photograph.) Babbage's design was forgotten until ... difference equation mathematical equality involving the differences between successive values of a function of a discrete variable. ... difference quotient (from the article "calculus") ...This simplifies to gt + gh/2 and is called the difference quotient of the function gt2/2. As ... difference set (from the article "combinatorics") A set of k + 1 non-negative integers d0, d1, · · · , dk, ... difference tone (from the article "Tartini, Giuseppe") Tartini contributed to the science of acoustics by his discovery of the difference tone, also ... difference-in-conditions insurance (from the article "insurance") Increasing international business activity has caused greater use of policies generally termed difference-in-conditions insurance (DIC). ... differentiable function (from the article "mathematics") Cauchy then said a function f(x) is differentiable at the point a if, as x ... differential in mathematics, an expression based on the derivative of a function, useful for approximating certain ... [1 Related Articles] differential analyzer computing device for solving differential equations. Its principal components perform the mathematical operation of integration ... [3 Related Articles] Differential Aptitude Test (from the article "aptitude test") ...in educational and vocational counseling. Aptitude tests also have been developed to measure professional potential ... differential association (from the article "criminology") Examples of these approaches include the theory of differential association, which claims that all criminal ... differential blood count (from the article "blood count") ...The readings vary with sex, age, physiological state, and general health, but the blood of ... differential diagnosis (from the article "diagnosis") ...a diagnosis is called clinical decision making. The clinician uses the information gathered from the ... differential discriminator (from the article "radiation measurement") ...discriminator to count only those pulses that are larger than a preset amplitude. This approach ... differential equation mathematical statement containing one or more derivatives-that is, terms representing the rates of change of ... [12 Related Articles] differential gear in automotive mechanics, gear arrangement that permits power from the engine to be transmitted to ... [1 Related Articles] differential geometry branch of mathematics that studies the geometry of curves, surfaces, and manifolds (the higher-dimensional analogs ... [3 Related Articles] differential interference contrast (from the article "microscope") Meanwhile, differential interference contrast (DIC) was developed by Polish-born French physicist Georges Nomarski in 1952. ... differential navigation (from the article "GPS") When positional information is required with pinpoint precision, users can take advantage of differential GPS ... differential operator (from the article "mathematics") ...and Carl Jacobi in Germany showed how problems in dynamics could be reduced to systems ... differential psychology branch of psychology that deals with individual and group differences in behaviour. Charles Darwin's studies ... differential pulse voltammetry (from the article "analysis") Differential pulse voltammetry adds a periodically applied potential pulse (temporary increase in potential) to the ... differential rent (from the article "rent") Marginal land (the least fertile cultivated) earned no rent. Since, therefore, it was differences in ... differential rotation (from the article "Sun") SunHistory of observation differential suicide (from the article "individualism") ...individual actions. Methodological individualism precludes explanations that appeal to social factors that cannot in turn ... differential thermal analysis in analytical chemistry, a technique for identifying and quantitatively analyzing the chemical composition of substances ... [1 Related Articles] differential-algebraic system (from the article "numerical analysis") ...of moving mechanical systems, a technique that involves both ordinary differential equations and algebraic equations ... differentiation (from the article "cell") Adult organisms are composed of a number of distinct cell types. Cells are organized into ... differentiation in mathematics, process of finding the derivative, or rate of change, of a function. In ... [8 Related Articles] differentiation (from the article "Earth") ...event for Earth's surface, however, was the formation of the earliest crust by partial melting ... differentiator a device or set of components for performing the mathematical operation of differentiation-i.e., supplying an ... difficult crossings problem (from the article "number game") ...the manipulation of objects, and those requiring computation. The first required little or no mathematical ... Diffie, Whitfield (from the article "cryptology") In 1976, in one of the most inspired insights in the history of cryptology, Sun ... diffraction the spreading of waves around obstacles. Diffraction takes place with sound; with electromagnetic radiation, such ... [16 Related Articles] diffraction grating component of optical devices consisting of a surface ruled with close, equidistant, and parallel lines ... [5 Related Articles] diffraction pattern (from the article "electron diffraction") As an analytic method, electron diffraction is used to identify a substance chemically or to ... diffraction, order of (from the article "spectroscopy") ...theta and crystal spacing d satisfy the Bragg condition, 2d sin theta = nlambda, where ... diffuse ionized gas (from the article "nebula") A recently recognized major component of interstellar gas has been discovered by means of its ... diffuse nebula (from the article "nebula") As noted above, clouds of gas and dust that contain stars hot enough to ionize ... diffuse nervous system (from the article "nervous system") The diffuse nervous system is the most primitive nervous system. In diffuse systems nerve cells ... diffuse radiation (from the article "atmosphere") ...its line of propagation by the intervening atmosphere. The image of the Sun's disk as ... diffuse thalamic projection system (from the article "attention") ...sustained, tonic shifts in an individual's level of involvement with the environment, including the control ... diffuse-porous wood (from the article "tree") Hardwoods may be divided into ring-porous and diffuse-porous trees. In ring-porous trees the vessels laid ... diffuser pump (from the article "pump") Another type of radial flow centrifugal pump is the diffuser pump, in which, after the ... diffusion process resulting from random motion of molecules by which there is a net flow of ... [29 Related Articles] diffusion bonding (from the article "welding") This type of bonding relies on the effect of applied pressure at an elevated temperature ... diffusion chamber (from the article "diffusion chamber") simple form of cloud chamber, a device used for radiation detection (see cloud chamber).cloud chambers diffusion coefficient (from the article "gas") ...and in an equal countercurrent experiment this is balanced by an equal and opposite flow ... diffusion equation (from the article "fluid mechanics") This is a diffusion equation. It indicates that, if the plate oscillates to and fro ... diffusion flame (from the article "oxidation-reduction reaction") Diffusion flames, smoothly flowing (laminar) or turbulent, belong to the class of flames whose ingredients ... diffusion index (from the article "economic forecasting") Some economists also use sets of statistics called diffusion indexes to calculate economic turning points. ... diffusion layer (from the article "integrated circuit") ...As a side effect of annealing, the implanted atoms usually move a little, diffusing into ...

© 2006, Encyclopædia Universalis France S.A. Tous droits de propriété industrielle et intellectuelle réservés.