| | - derived data
- (from the article "census") ...census information is obtained by using a fixed questionnaire for interviewing, there are two broad types of resulting data: direct data, the answers to specific questions on the schedule; and derived data, the facts discovered by classifying and interrelating the ...
- dermabrasion
- (from the article "plastic surgery") ...early removal of exposed sutures so that the wound is held closed by buried sutures. Among the techniques used in plastic surgery are incision, excision, chemosurgery, electrosurgery, laser surgery, dermabrasion, and liposuction.scar removal
- dermal denticle
- (from the article "chondrichthian") ...behind each eye, called a spiracle, which is a modified first gill cleft. The dorsal fin or fins and fin spines are rigid, not erectile. Scales, if present, are structurally minute teeth, called dermal denticles, each consisting of a hollow ...
- dermal papilla
- (from the article "fingerprint") impression made by the papillary ridges on the ends of the fingers and thumbs. Fingerprints afford an infallible means of personal identification, because the ridge arrangement on every finger of every human being is unique and does not alter with ...
- dermal scale
- (from the article "scale") ...small plate or shield forming part of the outer skin layers of certain animals. Scales provide protection from the environment and from predators. Fish scales are formed of bone from the deeper, or dermal, skin layer. The elasmobranchs (e.g., sharks) ...
- dermal tissue
- (from the article "angiosperm") The dermal tissue system-the epidermis-is the outer protective layer of the primary plant body (the roots, stems, leaves, flowers, fruits, and seeds). The epidermis is usually one cell layer thick, and its cells lack chloroplasts.
plant tissue
- dermaseptin B1
- (from the article "Life Sciences") ...plants to give the plants resistance against a range of microbial diseases. The gene was taken from Phyllomedusa bicolor, a poisonous frog of South American rainforests, and it produces dermaseptin B1, a skin toxin that helps protect the frog against ...
- dermatitis
- an inflammation of the skin usually characterized by redness, swelling, blister formation, and oozing and almost always by itching. The term eczema, which formerly referred to the blistered, oozing state of inflamed skin, has by common usage come to have ... [5 Related Articles]
- dermatitis herpetiformis
- (from the article "celiac disease") ...widely. For example, some people experience severe gastrointestinal symptoms, whereas others are asymptomatic, are irritable and depressed, or develop an itchy skin rash with blisters, known as dermatitis herpetiformis. If left undiagnosed or uncontrolled, celiac disease may lead to intestinal ...
- Dermatocarpon fluviatile
- (from the article "fungus") ...in deserts, Arctic and Alpine regions, and ice-free parts of Antarctica. Foliose, or leafy, thalli grow best in areas of frequent rainfall; two foliose lichens, Hydrothyria venosa and Dermatocarpon fluviatile, grow on rocks in freshwater streams of North America. Fruticose ...
- dermatochalasis
- sagging of the eyelid skin and underlying muscle that occurs commonly during the aging process. Symptoms may be absent or include brow ache, reduction of superior peripheral vision, sensation of the lid skin resting on the eyelashes, and interference of ...
- dermatogen
- (from the article "plant development") ...principal tissues of the root-vascular cylinder, cortex, and epidermis-originate from three groups of initial cells, or histogens, in the apical meristem-plerome, periblem, and dermatogen respectively. A fourth histogen, the calyptrogen, produces the root cap. The histogens have been thought to ...
- dermatoglyphics
- (from the article "primate") ...are certain anatomic features of the skin of the hands and feet, such as the absence of pads on the palms and soles and the presence of a finely ridged pattern of skin corrugations known as dermatoglyphics (the basis for ...
- dermatologic disorder
- (from the article "therapeutics") Medications prescribed for dermatologic disorders account for a large amount of local drug therapy, whether it be a substance to stimulate hair growth or to soothe a burning and itching rash. Many different corticosteroid preparations are available to treat eczema, ...
- dermatology
- medical specialty dealing with the diagnosis and treatment of diseases of the skin. Dermatology developed as a subspecialty of internal medicine in the 18th century; it was initially combined with the diagnosis and treatment of venereal diseases, because syphilis was ...
- dermatome
- (from the article "chickenpox") ...cause of reactivation is not known. Upon reactivation, the virus travels along a nerve to the skin and causes herpes zoster. In most cases the lesions of herpes zoster occur in the distribution of a dermatome, an area of skin ...
- dermatomyositis
- chronic progressive inflammation of the skin and muscles, particularly the muscles of the shoulders and pelvis. [4 Related Articles]
- dermatophilosis
- (from the article "actinomycete") ...and will require further study to classify fully. Of the specific types of actinomycetes, Nocardia asteroides causes tissue infections in humans, and Dermatophilus congolensis causes dermatophilosis, a severe dermatitis of cattle, sheep, horses, and occasionally humans. Several species of Streptomyces ...
- Dermatophilus congolensis
- (from the article "actinomycete") ...groups are themselves heterogeneous and will require further study to classify fully. Of the specific types of actinomycetes, Nocardia asteroides causes tissue infections in humans, and Dermatophilus congolensis causes dermatophilosis, a severe dermatitis of cattle, sheep, horses, and occasionally humans. ...
- dermatophyte
- (from the article "ringworm") superficial skin lesions caused by a highly specialized group of fungi called dermatophytes that live and multiply on the surface of the skin and feed on keratin, the horny protein constituting the major part of the outermost layer of the ...
- dermestid beetle
- any of approximately 700 species of beetles (insect order Coleoptera) that at one time were important household pests because the larvae feed on furs, skins, feathers, horn, and hair. Adults are usually brown or black, although some are brightly coloured ... [2 Related Articles]
- dermis
- the thicker, deeper layer of the skin underlying the epidermis and made up of connective tissue. It is present in varying degrees of development among various vertebrate groups, being relatively thin and simple in aquatic animals and progressively thicker and ... [6 Related Articles]
- Dermit, Edouard
- (from the article "Cocteau, Jean") ...works: frescoes on the City Hall in Menton, the Chapel of Saint-Pierre in Villefranche-sur-Mer, and the Church of Saint-Blaise-des-Simples in Milly-la-Foret. His adopted son, the painter Edouard Dermit, who also appears in his later films, continued the decoration of a ...
- Dermochelyidae
- (from the article "sea turtle") any of seven species of marine turtles belonging to the families Dermochelyidae (leatherback sea turtles) and Cheloniidae (green turtles, flatback sea turtles, loggerhead sea turtles, hawksbills, and ridleys). Both families are highly aquatic, and most species only appear on coastal ...
- Dermot Macmurrough
- Irish Diarmaid MSMNUMacENDNUMmurchada Irish king of Leinster whose appeal to the English for help in settling an internal dispute led to the Anglo-Norman invasion and conquest of Ireland by England. [1 Related Articles]
- Dermout, Maria
- Dutch novelist and short-story writer known for her subtle and evocative portraits of colonial life in the Dutch East Indies.
- DeRoburt, Hammer
- Nauruan politician who was at the centre of political life on the central Pacific island for more than 30 years, notably as the first elected president of Nauru following its independence in 1968.
- Derocheilocaris galvarina
- (from the article "mustache shrimp") The shrimp's rather tubular body includes a long abdomen; thick, bristly antennules extend about two-thirds the length of the body. The largest species, Derocheilocaris galvarina, which attains lengths to 0.5 mm (about 0.02 inch), occurs on the Pacific coast of ...
- Derocheilocaris remani
- (from the article "mustache shrimp") ...0.02 inch), occurs on the Pacific coast of South America in the intertidal zone and on sandy bottoms in shallow waters. D. typicus occurs on the Atlantic coast of northeastern United States. D. remani is found on the coasts of ...
- Derocheilocaris typicus
- (from the article "mustache shrimp") ...Derocheilocaris galvarina, which attains lengths to 0.5 mm (about 0.02 inch), occurs on the Pacific coast of South America in the intertidal zone and on sandy bottoms in shallow waters. D. typicus occurs on the Atlantic coast of northeastern United ...
- Derosne, Francois
- (from the article "match") ...the paper in which it was wrapped was set on fire. Other early matches, which could be both inconvenient and unsafe, involved bottles containing phosphorus and other substances. An example was Francois Derosne's briquet phosphorique (1816), which used a sulfur-tipped ...
- Deroulede, Paul
- (from the article "Clemenceau, Georges") ...The attack on Clemenceau was mounted in the powerful daily newspaper, Le Petit Journal; it took a dramatic turn when, in the Chamber of Deputies on Dec. 20, 1892, the author and Boulangist Paul Deroulede denounced him as the protege ...
- Derozio, Henry Louis Vivian
- poet and assistant headmaster of Hindu College, Calcutta, a radical thinker and one of the first Indian educators to disseminate Western learning and science among the young men of Bengal.
- Derqui, Santiago
- (from the article "Argentina") Before the unification took effect, however, Urquiza was succeeded in the presidency by Santiago Derqui. Another civil war broke out, but this time Buenos Aires defeated Urquiza's forces. Urquiza and General Bartolome Mitre, governor of Buenos Aires, then agreed that ...
- derrick
- apparatus with a tackle rigged at the end of a beam for hoisting and lowering. Its name is derived from that of a famous early 17th-century hangman of Tyburn, Eng. In the petroleum industry, a derrick consisting of a framework ... [2 Related Articles]
- Derrick, Edward Holbrook
- (from the article "Q fever") Q fever was first recognized in 1935 in Queensland, Australia, by Edward Holbrook Derrick. According to Derrick, Q stands for query, an appellation applied because of the many unanswered questions posed by the new disease at the time of its ...
- Derrida, Jacques
- French philosopher whose critique of Western philosophy and analyses of the nature of language, writing, and meaning were highly controversial yet immensely influential in much of the intellectual world in the late 20th century. [9 Related Articles]
- derringer
- pocket pistol produced in the early 19th century by Henry Deringer (q.v.), a Philadelphia gunsmith.
- Derry
- town (township), Rockingham county, southeastern New Hampshire, U.S., on Beaver Brook just southeast of Manchester. It includes the communities of Derry and East Derry. The town, set off from Londonderry and incorporated in 1827, was settled in the early 18th ...
- Dertigers
- (from the article "South African literature") The supreme event in Afrikaans literature was the appearance of a group of talented poets, the Dertigers ("Poets of the '30s"), begun by W.E.G. Louw with Die ryke dwaas (1934; "The Rich Fool"). This sensitive poet, with his searing conflicts ...
- Dertouzos, Michael Leonidas
- Greek-born computer scientist (b. Nov. 5, 1936, Athens, Greece-d. Aug. 27, 2001, Boston, Mass.), as director of the Massachusetts Institute of Technology's computer science laboratory from 1974, provided valuable support that helped enable the World Wide Web Consortium to develop ...
- Deruta
- (from the article "pottery") Among the early factories, that of Deruta (wich may have been under the patronage of Cesare Borgia) is of considerable importance. Maiolica has been made there from medieval times, and manufacture continues in the mid-20th century. Deruta potters about 1500 ...
- Deruta ware
- outstanding tin-glazed earthenware, or majolica, produced during the first half of the 16th century in the town of Deruta on the Tiber River, near Perugia, Italy. Deruta ware is characterized especially by a unique mother-of-pearl, metallic lustre and by certain ...
- Derval, Paul
- (from the article "Folies-Bergere") The Folies achieved international repute under the management of Paul Derval (from 1918 to 1966). He staged a series of sumptuous and grandiose spectacles featuring beautiful young women parading in a state of near nudity (despite their gaudy costumes) against ...
- Derveni
- (from the article "calligraphy") A find in 1962 at Derveni (Dhervenion), in Macedonia, of a carbonized roll of papyrus (Archaeological Museum, Thessaloniki, Greece) offers the oldest example of Greek handwriting and the only one preserved in the Greek peninsula (end of the 4th century ...
- dervish
- any member of a Sufi (Muslim mystic) fraternity, or tariqa. Within the Sufi fraternities, which were first organized in the 12th century, an established leadership and a prescribed discipline obliged the dervish postulant to serve his sheikh, or master, and ... [5 Related Articles]
- Derwall, Jupp
- German association football (soccer) manager during his tenure as national coach (1978-84), guided West Germany to 45 wins (including a record 23 straight), 11 losses, and 11 ties; the 1980 European championship title; and the final of the 1982 World ...
- Derwent River
- river in Tasmania, Australia, rising in Lake St. Clair on the central plateau and flowing 113 miles (182 km) southeast to enter Storm Bay through a 3.5-mile- (5.5-kilometre-) wide estuary. Its major upper-course tributaries, the Jordan, Clyde, Ouse (now draining ...
- Derwent Water
- lake, administrative county of Cumbria, historic county of Cumberland, England, in the Lake District National Park. It is about 3 miles (5 km) long and from 0.5 to 1.25 miles (0.8 to 2 km) wide, and its maximum depth is ...
- Derwent, River
- river in North Yorkshire, England, that rises on Fylingdales Moor only 6 miles (10 km) inland from the North Sea but flows 57 miles (92 km) through alternating gorges and vales to its junction with the River Ouse. This peculiar ...
- Derwentside
- district, administrative and historic county of Durham, northeastern England, located in the north-central part of the county about 12 miles (20 km) southwest of the city of Newcastle upon Tyne. Derwentside was a coal-mining area, historically important to Great Britain, ...
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