dissociative identity disorder, mental disorder in which two or more independent and distinct personality systems develop in the same individual. Each of these personalities may alternately inhabit the person’s conscious awareness to the exclusion of the others. In some cases all of the

coordination compound: Substitution: …through which substitution may occur—namely, dissociative and associative mechanisms. In the dissociative mechanism, a ligand is lost from the complex to give an intermediate compound of lower coordination number. This type of reaction path is typical of octahedral complexes, many aqua complexes, and metal carbonyls such as tetracarbonylnickel. An example…

dissociative disorder, any of several mental disturbances in humans in which normally integrated mental functions, such as identity, memory, consciousness, or perception, are interrupted. Dissociative disorders can occur suddenly or gradually and may last for a short time or become chronic. There

ionosphere and magnetosphere: Recombination: Electrons are removed mainly by dissociative recombination, a process in which electrons attach to positively charged molecular ions and form highly energetic, unstable neutral molecules. These molecules decompose spontaneously, converting internal energy to kinetic energy possessed by the fragments. The most important processes in the ionosphere involve recombination of O2+…

dissociative disorder, any of several mental disturbances in humans in which normally integrated mental functions, such as identity, memory, consciousness, or perception, are interrupted. Dissociative disorders can occur suddenly or gradually and may last for a short time or become chronic. There

Sophist: Writings: Iamblichus, and the so-called Dissoi logoi found in the manuscripts of Sextus Empiricus (3rd century ce). This evidence suggests that while most later writers took their accounts of the Sophists from earlier writers, especially from Plato, the original writings did in many cases survive and were consulted.

cementation: The reverse process is called dissolution. There is evidence that dissolution has occurred in calcareous sandstones, in which case the calcareous cement or grains are broken down in the same manner as the solution of limestones. The frosted and etched surfaces of quartz grains in some friable and loosely cemented…

liquid: Solubilities of solids and gases: Since the dissolution of one substance in another can occur only if there is a decrease in the Gibbs energy, it follows that, generally speaking, gases and solids do not dissolve in liquids as readily as do other liquids. To understand this, the dissolution of a solid…

annulment: …is to be distinguished from dissolution, which ends a valid marriage for special reasons—e.g., insanity of one partner after marrying. The annulment decree attempts to leave the parties in statu quo ante (as they were before the marriage), unless doing so would adversely affect a third person.

Don Giovanni, opera in two acts by Wolfgang Amadeus Mozart (Italian libretto by Lorenzo da Ponte) that premiered at the original National Theatre in Prague on October 29, 1787. The opera’s subject is Don Juan, the notorious libertine of fiction, and his eventual descent into hell. For Mozart, it

wastewater treatment: Thickening: …alternative to gravity thickening is dissolved-air flotation. In this method, air bubbles carry the solids to the surface, where a layer of thickened sludge forms.

liquid: Solubilities of solids and gases: Since the dissolution of one substance in another can occur only if there is a decrease in the Gibbs energy, it follows that, generally speaking, gases and solids do not dissolve in liquids as readily as do other liquids. To understand this, the dissolution of a solid…

consonance and dissonance: dissonance, in music, the impression of stability and repose (consonance) in relation to the impression of tension or clash (dissonance) experienced by a listener when certain combinations of tones or notes are sounded together. In certain musical styles, movement to and from consonance and dissonance…

Dissonance Quartet, string quartet (a type of chamber music for two violins, viola, and cello) in four movements by Wolfgang Amadeus Mozart. It was completed on January 14, 1785, and it was noted especially for its divergence—especially in the slow introduction—from the then-standard rules of

marketing: High-involvement purchases: Dissonance-reducing buying behaviour occurs when the consumer is highly involved but sees little difference between brands. This is likely to be the case with the purchase of a lawn mower or a diamond ring. After making a purchase under such circumstances, a consumer is likely…

amphibian: Annotated classification: †Superfamily Dissorophoidea (dissorophoids) Middle Pennsylvanian to Lower Triassic. Vertebrae strongly ossified; dorsal surface often with bony armor. †Family Trematopidae (trematopids) Upper Pennsylvanian to Lower Permian. Vertebrae weakly ossified, large intercentrum. †Family

short-horned grasshopper: …of the common species, the Carolina grasshopper (Dissosteira carolina), has black hind wings with a pale border. The clear-winged grasshopper (Camnula pellucida) is a major crop pest in North America.

distaff, Device used in hand spinning in which individual fibres are drawn out of a mass of prepared fibres held on a stick (the distaff), twisted together to form a continuous strand, and wound on a second stick (the spindle). It is most often used for making linen; wool does not require a distaff

Erinna: …known in antiquity for “The Distaff,” a hexameter poem of lament for a friend, written in the local Dorian dialect. Surviving fragments of her work include three epigrams. She is said to have died at the age of 19.

drug: Renal system drugs: …the first part of the distal tubule. A mild diuresis results in which sodium, potassium, and chloride ions are eliminated in the urine. Examples of these drugs are chlorothiazide and hydrochlorothiazide.

muscle disease: The muscular dystrophies: Distal myopathy particularly affects the muscles of the feet and hands.

carpal bone: …row toward the fingers, or distal row, includes the trapezium (greater multangular), trapezoid (lesser multangular), capitate, and hamate. The distal row is firmly attached to the metacarpal bones of the hand. The proximal row articulates with the radius (of the forearm) and the articular disk (a fibrous structure between the…

Colin Thubron: …by Thubron included Emperor (1978), Distance (1996), To the Last City (2002), and Night of Fire (2016). In 2006 he was made a Commander of the Order of the British Empire (CBE).

astronomy: Determining astronomical distances: A central undertaking in astronomy is the determination of distances. Without a knowledge of astronomical distances, the size of an observed object in space would remain nothing more than an angular diameter and the brightness of a star could not be converted into its…

distance learning, form of education in which the main elements include physical separation of teachers and students during instruction and the use of various technologies to facilitate student-teacher and student-student communication. Distance learning traditionally has focused on nontraditional

distance formula, Algebraic expression that gives the distances between pairs of points in terms of their coordinates (see coordinate system). In two- and three-dimensional Euclidean space, the distance formulas for points in rectangular coordinates are based on the Pythagorean theorem. The

distance learning, form of education in which the main elements include physical separation of teachers and students during instruction and the use of various technologies to facilitate student-teacher and student-student communication. Distance learning traditionally has focused on nontraditional

evolution: Distance methods: …step is to obtain a distance matrix, such as that making up the nucleotide differences table, but one based on a set of morphological comparisons between species or other taxa. For example, in some insects one can measure body length, wing length, wing width, number and length of wing veins,…

long-distance running, in athletics (track and field), footraces ranging from 3,000 metres through 10,000, 20,000, and 30,000 metres and up to the marathon, which is 42,195 metres (26 miles 385 yards). It includes cross-country races over similar distances. Olympic events are the 5,000- and

swimming: Distance swimming: Any swimming competition longer than 1,500 metres (1,640 yards) is considered distance swimming. Most long-distance races are in the 24- to 59-km (15- to 37-mile) range, though some, such as the Lake George marathon (67 km [41.5 miles]) and the Lake Michigan Endurance…

gas: Intermolecular separation and average speed: One of the easiest properties to work out is the average distance between molecules compared to their diameter; water will be used here for this purpose. Consider 1 gram of H2O at 100° C and atmospheric pressure, which are the…

mass transit: Revenues: Distance-based fares, proportional to the length of the trip, are a better reflection of the cost of service, and travelers tend to accept the idea that they should pay more for longer trips. The disadvantage of distance-based fares is that the operator must distinguish travelers…

distance-measuring equipment (DME), in aerial navigation, equipment for measuring distance by converting the time a special electronic pulse takes to travel from an aircraft to a ground station and for an answering pulse to return. The airborne equipment displays the information to the pilot. When

Charles Olson: …Cold Hell, in Thicket (1953), The Distances (1960), and Letters for Origin, 1950–1956 (1969). Posthumous collections of Olson’s work include A Nation of Nothing but Poetry: Supplementary Poems, edited by George F. Butterick (2000), and Collected Prose, edited by Donald Allen and Benjamin Friedlander (1997).

alienation effect, idea central to the dramatic theory of the German dramatist-director Bertolt Brecht. It involves the use of techniques designed to distance the audience from emotional involvement in the play through jolting reminders of the artificiality of the theatrical performance. Examples

Ha Jin: Literary works: …collections include Wreckage (2001) and A Distant Center (2018). His volume of army stories, Ocean of Words (1996), received the PEN/Hemingway Award in 1997, and his second book of stories, Under the Red Flag (1997), which tells of life during the Cultural Revolution, won the Flannery O’Connor Award for Short…

Distant Early Warning Line (DEW Line), Cold War communications network, made up of more than 60 manned radar installations and extending about 4,800 km (3,000 miles) from northwestern Alaska to eastern Baffin Island. The network served as a warning system for the United States and Canada that could

Barbara Tuchman: …years to research and write A Distant Mirror: The Calamitous 14th Century (1978). In this book she made exceptionally vivid the historical events, personalities, and texture of life in 14th-century France, taking for her main character a typical French knight and nobleman of the period, Enguerrand de Coucy. Tuchman’s last…

Gary Snyder: …Ginsberg and Gary Snyder and Distant Neighbors: The Selected Letters of Wendell Berry and Gary Snyder were published in 2009 and 2014, respectively.

Distant Relations, experimental novel by Carlos Fuentes, published in 1980 as Una familia lejana, exploring the idea of alternate and shifting realities. The main portion of the novel—which one writer characterized as a “metaphysical ghost story”—is told to the narrator one afternoon in Paris by a

Paul Horgan: A Distant Trumpet (1960) concerns late-19th-century soldiers who fought the Apaches. His short stories are collected in The Return of the Weed (1936), Figures in a Landscape (1940), and The Peach Stone (1967).

distemper, Viral disease in two forms, canine and feline. Canine distemper is acute and highly contagious, affecting dogs, foxes, wolves, mink, raccoons, and ferrets. Most untreated cases are fatal. Infected animals are best treated with prompt injections of serum globulins; secondary infections

canine distemper, an acute, highly contagious, disease affecting dogs, foxes, wolves, mink, raccoons, and ferrets. It is caused by a paramyxovirus that is closely related to the viruses causing measles in humans and rinderpest in cattle. A few days after exposure to the virus, the animal develops a

feline distemper, viral disease of cats, kittens two to six months old being most susceptible. Highly contagious, it is caused by a parvovirus that is closely related to canine parvovirus type 2. About 3 to 10 days after exposure to the disease, infected kittens cough and sneeze, have running eyes

kyanite, silicate mineral that is formed during the regional metamorphism of clay-rich sediments. It is an indicator of deep burial of a terrain. Kyanite occurs as elongated blades principally in gneisses and schists, and it is often accompanied by garnet, quartz, and mica. It can also occur in

distillation, process involving the conversion of a liquid into vapour that is subsequently condensed back to liquid form. It is exemplified at its simplest when steam from a kettle becomes deposited as drops of distilled water on a cold surface. Distillation is used to separate liquids from

distillation, process involving the conversion of a liquid into vapour that is subsequently condensed back to liquid form. It is exemplified at its simplest when steam from a kettle becomes deposited as drops of distilled water on a cold surface. Distillation is used to separate liquids from

chemical analysis: Distillation: A distillation column is a tube that provides surfaces on which condensations and vaporizations can occur before the gas enters the condenser in order to concentrate the more volatile liquid in the first fractions and the less volatile components in the later fractions. The analyte typically…

distilled spirit, alcoholic beverage (such as brandy, whiskey, rum, or arrack) that is obtained by distillation from wine or other fermented fruit or plant juice or from a starchy material (such as various grains) that has first been brewed. The alcoholic content of distilled liquor is higher than

combinatorics: Systems of distinct representatives: …to possess a set of distinct representatives if x1, x2,…, xn can be found, such that xi ∊ Si, i = 1, 2,…, n, xi ≠ xj for i ≠ j. It is possible that Si

Pierre Bourdieu: In his best-known work, La Distinction (1979; Distinction), Bourdieu argued that those with high social and cultural capital (or status) are the arbiters of taste and thatone’s own particular taste comes from the milieu and social class in which one lives—that is, one’s field. An individual’s almost innate knowledge…

Prague school: They developed distinctive-feature analysis of sounds; by this analysis, each distinctive sound in a language is seen as composed of a number of contrasting articulatory and acoustic features, and any two sounds of a language that are perceived as being distinct will have at least one feature…

rationalism: Epistemological rationalism in modern philosophies: The clearness and distinctness upon which he insisted was not that of perception but of conception, the clearness with which the intellect grasps an abstract idea, such as the number three or its being greater than two.

metalogic: Background and typical problems: …“true” ones (called the “distinguished elements” of the set). In the particular case of the system N, one theory Ta is built up on the basis of the language and the set of theorems of N, and another theory Tb is determined by the true sentences of N according…

metalogic: Background and typical problems: …“true” ones (called the “distinguished elements” of the set). In the particular case of the system N, one theory Ta is built up on the basis of the language and the set of theorems of N, and another theory Tb is determined by the true sentences of N according…

Distinguished Service Order, British military decoration awarded to officers who have performed meritorious or distinguished service in war. The decoration, instituted by Queen Victoria in 1886, entitles recipients to add D.S.O. after their names. Foreign officers associated with British forces can

aberration: Curvature of field and distortion refer to the location of image points with respect to one another. Even though the former three aberrations may be corrected for in the design of a lens, these two aberrations could remain. In curvature of field, the image of a plane object perpendicular…

distortion, in acoustics and electronics, any change in a signal that alters the basic waveform or the relationship between various frequency components; it is usually a degradation of the signal. Straight amplification or attenuation without alteration of the waveform is not usually considered to

Bruce Sterling: Weather (1994), Holy Fire (1996), Distractions (1998), The Caryatids (2009), and Love Is Strange (2012).

distress, in law, process that enables a person to seize and detain from a wrongdoer some chattel, or item of personal property, as a pledge for the redressing of an injury, the performance of a duty, or the satisfaction of a demand. Distress was frequently levied without legal process, but

stress: …is sometimes referred to as distress. Humans respond to stress through basic physiological mechanisms, similar to all other organisms; however, in humans, stress is an especially complex phenomenon, influenced and complicated by modern lifestyles and technologies.

distress signal, a method by which a ship at sea can summon assistance. Distress signals are fixed by custom and by internationally agreed-on rules of the road at sea. The most important are: (1) visual signals, such as a flame, a red flare, an orange smoke signal, or a square flag displayed with a

Ambrose Philips: ” He also wrote The Distressed Mother (1712), an adaptation of Jean Racine’s play Andromaque.

river: Braided channels: Distributary patterns, whether on alluvial fans or deltas, pose few problems. A delta pass that lengthens is liable to lateral breaching, whereas continued deposition, on deltas and on fans, raises the channel bed and promotes sideways spill down the least gradient. The branching rivers of…

distributed computing, the coordinated use of many computers disbursed over a wide area to do complex tasks. Distributed computing is a method that researchers use to solve highly complicated problems without having to use an expensive supercomputer. Much like multiprocessing, which uses two or

cyberwar: Attacks in cyberspace: Other cyberweapons include distributed denial-of-service, or DDoS, attacks, in which attackers, using malware, hijack a large number of computers to create so-called botnets, groups of “zombie” computers that then attack other targeted computers, preventing their proper function. This method was used in cyberattacks against Estonia in April and May…

DEISA, former European consortium (2002–11) of national supercomputer centres—partially funded by the European Union (EU)—that were networked for high-performance computing, especially to facilitate distributed computing for scientific research. DEISA also maintained a network link with TeraGrid, a

Project Gutenberg: In 2000 Charles Franks founded Distributed Proofreaders, a Web-based program for parsing the difficult task of proofreading scanned texts for Project Gutenberg. In 2002 Distributed Proofreaders became part of Project Gutenberg. The ability to distribute the proofreading task among volunteer teams was reported in 2002 by Slashdot, a popular technology…

computer science: Information management: Distributed databases must have a distributed DBMS to provide overall control of queries and updates in a manner that does not require that the user know the location of the data. A closely related concept is interoperability, meaning the ability of the user of one…

TeraGrid, former American integrated network of supercomputing centres joined for high-performance computing. TeraGrid, the world’s largest and fastest distributed infrastructure for general scientific research, also maintained a network link with DEISA, a European supercomputing network that grew

distribution, in syllogistics, the application of a term of a proposition to the entire class that the term denotes. A term is said to be distributed in a given proposition if that proposition implies all other propositions that differ from it only in having, in place of the original term, any

therapeutics: Principles of drug uptake and distribution: Study of the factors that influence the movement of drugs throughout the body is called pharmacokinetics, which includes the absorption, distribution, localization in tissues, biotransformation, and excretion of drugs. The study of the actions of the drugs and their effects is called pharmacodynamics. Before…

angiosperm: Distribution and abundance: …and their almost complete worldwide distribution. The only area without angiosperms is the southern region of the Antarctic continent, although two angiosperm groups are found in the islands off that continent. Angiosperms dominate terrestrial vegetation, particularly in the tropics, although submerged and floating aquatic angiosperms do exist throughout the world.…

marketing: Place: Place, or where the product is made available, is the third element of the marketing mix and is most commonly referred to as distribution. When a product moves along its path from producer to consumer, it is said to be following a channel of…

logistics: Warehouse and distribution centre management: Distribution centres emphasize a faster turnover (or throughput) of goods. Chain grocery stores use distribution centres for receiving railcars and trucks filled with pallet loads of individual grocery products. Inside the warehouse all the products are placed in individual stacks. Then orders are “picked” from…

marketing: Place: …said to be following a channel of distribution. For example, the channel of distribution for many food products includes food-processing plants, warehouses, wholesalers, and supermarkets. By using this channel, a food manufacturer makes its products easily accessible by ensuring that they are in stores that are frequented by those in…

separation and purification: Separations based on equilibria: …described in terms of the distribution coefficient, K, by the equationin which the concentrations in the equilibrium state are considered. For K = 1, there are equal concentrations of the dye in the two phases; for K > 1, more dye would be found in the benzene phase at equilibrium.…

distribution function, mathematical expression that describes the probability that a system will take on a specific value or set of values. The classic examples are associated with games of chance. The binomial distribution gives the probabilities that heads will come up a times and tails n − a

sample preparation: Theory: … of the material’s components, and distribution heterogeneity, which is the heterogeneity that derives from the spatial mixing of the components. While this dichotomy can be usefully applied to many material types, it is best described and understood in reference to particulate solid mixtures. For example, if one considers a mixture…

angiosperm: Distribution and abundance: …and their almost complete worldwide distribution. The only area without angiosperms is the southern region of the Antarctic continent, although two angiosperm groups are found in the islands off that continent. Angiosperms dominate terrestrial vegetation, particularly in the tropics, although submerged and floating aquatic angiosperms do exist throughout the world.…

distribution, in syllogistics, the application of a term of a proposition to the entire class that the term denotes. A term is said to be distributed in a given proposition if that proposition implies all other propositions that differ from it only in having, in place of the original term, any

John Bates Clark: In The Distribution of Wealth (1899) Clark developed his distinctive utility theory. He held that commodities contain within them “bundles of utilities”; i.e., they represent varying qualitative degrees of utility. In this work he also developed his marginal productivity theory by first setting up a theoretical…

separation and purification: Separations based on equilibria: …described in terms of the distribution coefficient, K, by the equationin which the concentrations in the equilibrium state are considered. For K = 1, there are equal concentrations of the dye in the two phases; for K > 1, more dye would be found in the benzene phase at equilibrium.…

distribution theory, in economics, the systematic attempt to account for the sharing of the national income among the owners of the factors of production—land, labour, and capital. Traditionally, economists have studied how the costs of these factors and the size of their return—rent, wages, and

inheritance: Common law: …practice was codified in the Statute of Distribution in 1670. This in turn became the model for state legislation in the United States, although the state laws show considerable variation in many respects.

Lars V. Hörmander: …was his establishment of a theory of distributions using Fourier analysis. This is an extension of Laurent Schwartz’s concept of a “distribution,” with which he brought rigour to the examination of mass distributions. Hörmander was also one of the principal contributors to the development of the theory of pseudodifferential operators,…

industrial relations: Collective bargaining: Distributive bargaining is essentially a win–lose engagement. What one party “wins” through hard bargaining comes at the expense of the interests or goals of the “losing” party. In contrast, with an integrative bargaining approach the parties engage in cooperative problem solving in an effort to…

Robert Nozick: The entitlement theory of justice of Robert Nozick: …justice: they wrongly define a just distribution in terms of the pattern it exhibits at a given time (e.g., an equal distribution or a distribution that is unequal to a certain extent) or in terms of the historical circumstances surrounding its development (e.g., those who worked the hardest have more)…

distributive law, in mathematics, the law relating the operations of multiplication and addition, stated symbolically as a(b + c) = ab + ac; that is, the monomial factor a is distributed, or separately applied, to each term of the binomial factor b + c, resulting in the product ab + ac. From this

distributive law, in mathematics, the law relating the operations of multiplication and addition, stated symbolically as a(b + c) = ab + ac; that is, the monomial factor a is distributed, or separately applied, to each term of the binomial factor b + c, resulting in the product ab + ac. From this

marketing: Wholesalers: …into one of three groups: merchant wholesalers, brokers and agents, and manufacturers’ and retailers’ branches and offices.

ignition system: The distributor routes the successive bursts of high-voltage current to each spark plug in the firing order.

ignition system: …a distributor-less ignition system, or direct-ignition system, in which a high-voltage pulse is directly applied to coils that sit on top of the spark plugs (known as coil-on-plug). The major components of these systems are a coil pack, an ignition module, a crankshaft reluctor ring, a magnetic sensor, and an…

Methodism: Origins: The country was divided into districts and the districts into circuits, or groups of congregations. Ministers were appointed to the circuits, and each circuit was led by a superintendent, though much power remained in the hands of the local trustees.

Seamus Heaney: In Electric Light (2001) and District and Circle (2006), he returned to the Ireland of his youth. The poetry in Human Chain (2010) reflects on death, loss, regret, and memory.

crime: The decision to prosecute: , district attorney in the state jurisdictions of the United States, procurator-fiscal in Scotland, and crown attorney in Canada). The prosecutor may be an elected local official (as in many jurisdictions in the United States) or a member of an organization responsible to a minister of…

Israeli law: …imprisonment up to three years; district courts in the four principal cities, with general jurisdiction in civil and criminal matters; and the supreme court in Jerusalem, deciding appeals from inferior courts and exercising, as court of first and only instance, jurisdiction as high court of justice. Religious courts continue to…

Camilla Collett: …most famous, Amtmandens døttre (1854–55; The District Governor’s Daughter). In it she attacked the existing inequality of the sexes and the conventional marriage and home based on patriarchal dominion. A less-significant volume of short stories followed, and then Collett published I de lange nœtter (1862; “Through the Long Nights”), in…

Faith Baldwin: …Babs and Mary Lou (1931), District Nurse (1932), Manhattan Nights (1937), and He Married a Doctor (1944). Her last completed novel, Adam’s Eden, appeared in 1977.

John Dos Passos: …by a less ambitious trilogy, District of Columbia (Adventures of a Young Man, 1939; Number One, 1943; The Grand Design, 1949), which chronicles Dos Passos’ further disillusion with the labour movement, radical politics, and New Deal liberalism. The decline of his creative energy and the increasing political conservatism evident in…