a chronic fungal infection of humans caused by Cryptococcocus neoformans and C. bacillispora. The organism may be present in soil or dust and is often found in pigeon droppings, with ...
(from the article "igneous rock") ...cannot be resolved without the aid of a hand lens or microscope are termed aphanites, and their texture is termed aphanitic. Aphanitic rocks are further described as either microcrystalline or ...
(from the article "turtle") ...necks, have eight cervical vertebrae, but those that fold their neck vertically can withdraw the head into the shell. These are the so-called S-necked, or vertical-necked, turtles of the suborder ...
(from the article "bivalve") ...labial palps usually with palp proboscides, which effect feeding; foot with flat sole; marine; unattached; infaunal. About 450 living species.Hinge either weakly taxodont or edentulous; distinctive shell structure of ...
(from the article "cryptology") Cryptography, as defined in the introduction to this article, is the science of transforming information into a form that is impossible or infeasible to duplicate or undo without knowledge of ...
genus of trilobites (extinct arthropods) found as fossils in Europe and North America in the Ordovician period (505 million to 438 million years ago). Its distinctive appearance makes the genus ...
science concerned with data communication and storage in secure and usually secret form. It encompasses both cryptography and cryptanalysis. [4 Related Articles]
any small biflagellate organism considered to be either a protozoan (order Cryptomonadida) or an alga (class Cryptophyceae). Occurring in both fresh and salt water, cryptomonads contain pigments found elsewhere only ... [3 Related Articles]
(from the article "algae") ...sheet or scale covering; nucleomorph may represent reduced nucleus of symbiotic organism; approximately 200 described species; Chilomonas, Cryptomonas, Falcomonas, and
(from the article "fungus") ...is Mixia.Parasitic; simple septate; contains one order.Parasitic on insects such as bark beetles, some are mycoparasitic; sometimes fuse with host cells using a small pore in colacosome; example ...
(from the article "fungus") Parasitic primarily on ferns; blastosporic yeasts; example genus is Mixia.Parasitic; simple septate; contains one order.Parasitic on insects such...
(from the article "perthite") ...in the separation of tiny crystals of the two phases. In perthite, they sometimes may be seen by the unaided eye; in microperthite, however, they are distinguishable only microscopically, and ...
a covered gallery that was a characteristic feature of the ancient Roman palazzo. It was usually designed to provide shade and a cool place for walking. Such a gallery was ...
disorder in which one or both of the testes do not descend spontaneously to the usual position in the scrotum. (The testes normally descend around the time of the male ... [4 Related Articles]
(from the article "Ordovician Period") ...plants, in the form of cuticle fragments and spores. Fragments of cuticle lack stomata and other structures and have eluded identification. The spores are more diagnostic, and two types are ...
(from the article "protozoan") The apicomplexan Cryptosporidium (class Coccidea) is a protozoan parasite of humans and other mammals that has become particularly prominent since the 1970s. It has a one-host life cycle and lives ...
order of bryozoans (small colonial animals) found as fossils in rocks of Ordovician to Permian age (between 488 million and 251 million years old). Many holes are exhibited, which probably ... [3 Related Articles]
(from the article "orchid") Australian orchids of the genus Cryptostylis are pollinated by ichneumon wasps of the genus Lissopimpla. The wasp, after backing into the stigma, attempts to copulate with the flower by bending ...
(from the article "bryophyte") Most gametophytes are green, and all except the gametophyte of the liverwort Cryptothallus have chlorophyll. Many have other pigments, especially in the cellulosic cell walls but sometimes within the cytoplasm ...
(from the article "Cambrian Period") ...Cambrian explosion. The beginning of this remarkable adaptive radiation has been used to divide the history of life on Earth into two unequal eons. The older, approximately three-billion-year-old Cryptozoic Eon ...
(Nov. 11, 1813), British victory in the War of 1812 that helped to prevent the capture of Montreal by U.S. forces; it was fought between approximately 1,600 U.S. troops under ...
any solid material in which the component atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. [72 Related Articles]
(from the article "band-pass filter") ...vibrating piezoelectric crystals (crystals that vibrate mechanically at their resonant frequency when excited by an applied voltage of the same frequency), in which case the device is called a crystal ...
(from the article "Oklahoma City") Myriad Botanical Gardens (1988), a 17-acre (7-hectare) recreational park located downtown, has gardens, an amphitheatre, and the seven-story Crystal Bridge Tropical Conservatory. Other attractions include the Oklahoma City Zoo; the ...
(from the article "Garden Grove") ...festival, held annually (since 1958) over the Memorial Day weekend. Garden Grove also hosts festivals celebrating Korean and Arab cultures. One of the city's most prominent features is the Crystal ...
city, seat (1928) of Zavala county, southern Texas, U.S. It is located some 92 miles (148 km) southwest of San Antonio and 35 miles (56 km) from the Mexico border. ...
imperfection in the regular geometrical arrangement of the atoms in a crystalline solid. These imperfections result from deformation of the solid, rapid cooling from high temperature, or high-energy radiation (X-rays ... [2 Related Articles]
(from the article "Pickard, Greenleaf Whittier") U.S. electrical engineer who invented the crystal detector (one of the first devices widely used for receiving radio broadcasts) and who was also one of the first scientists to demonstrate ...
(from the article "quasicrystal") ...symmetries of their crystal lattices. Quasicrystalline aluminum-copper-iron has been imaged using a scanning electron microscope, revealing the pentagonal dodecahedral shape of the grains. Its 12 faces are regular pentagons, with ...
(from the article "coordination compound") Considerable success in understanding certain coordination compounds also has been achieved by treating them as examples of simple ionic or electrostatic bonding. The German theoretical physicist Walther Kossel's ionic model ...
divination of distant or future events based on visions seen in a ball of rock crystal. Divination based on an analysis of reflections in water, on polished metal, or on ... [1 Related Articles]
(from the article "goby") ...the first with several weak spines; lack of a lateral line (series of small sense organs along the head and sides); and, usually, a rounded tail. Many are brightly coloured, ...
(from the article "crystal") The earliest crystal grower was nature. Many excellent crystals of minerals formed in the geologic past are found in mines and caves throughout the world. Most precious and semiprecious stones ...
(from the article "amphibole") Long prismatic, acicular, or fibrous crystal habit, Mohs hardness between 5 and 6, and two directions of cleavage intersecting at approximately 56° and 124° generally suffice to identify amphiboles in ...
(from the article "crystal") The elements are found in a variety of crystal packing arrangements. The most common lattice structures for metals are those obtained by stacking the atomic spheres into the most compact ...
(from the article "microphone") ...capacitance (condenser microphone), in the motion of a coil (dynamic microphone) or conductor (ribbon microphone) in a magnetic field, or in the twisting or bending of a piezoelectric crystal (crystal ...
(from the article "Congo") ...coastal region, two major basins or depressions, high plateaus, and three mountain ranges. The narrow coastal region is composed of a fairly low plain that runs inland from the Atlantic ...
giant glass-and-iron exhibition hall in Hyde Park, London, that housed the Great Exhibition of 1851. The structure was taken down and rebuilt (1852-54) at Sydenham Hill (now in the borough ... [6 Related Articles]
(from the article "elevator") ...platforms unsatisfactory for passenger use. When an American, Elisha Graves Otis, introduced a safety device in 1853, he made the passenger elevator possible. Otis' device, demonstrated at the Crystal Palace ...
(from the article "spectroscopy") ...incidence can be reflected. For X rays where the wavelengths are comparable to the lattice spacings in analyzing crystals, the radiation can be "Bragg reflected" from the crystal: each crystal ...
(from the article "motion-picture technology") ...Alternatively, synchronization may be achieved through the automatic, continual transmission from cameras to recorders of a sync-pulse signal sent by cable or wireless radio. More convenient yet is crystal sync, ...
(from the article "crystal") The elements are found in a variety of crystal packing arrangements. The most common lattice structures for metals are those obtained by stacking the atomic spheres into the most compact ...
(from the article "liquid crystal") ...is broken in the hexatic-B phase, but a proliferation of dislocations maintains continuous translational symmetry within its layers. A similar relationship holds between smectic-C and smectic-F. Crystal-B and crystal-G have ...
(from the article "chemical bonding") ...is based on details of their symmetry) lower in energy than the remaining two (labeled eg). The difference in energy between the two sets is denoted Delta and is called ...
(from the article "liquid crystal") ...in the hexatic-B phase, but a proliferation of dislocations maintains continuous translational symmetry within its layers. A similar relationship holds between smectic-C and smectic-F. Crystal-B and crystal-G have molecular positions ...
(from the article "candy") Candies can be divided into noncrystalline, or amorphous, and crystalline types. Noncrystalline candies, such as hard candies, caramels, toffees, and nougats, are chewy or hard, with homogeneous structure. Crystalline candies, ...
(from the article "plastic") The plastic behaviour of polymers is also influenced by their morphology, or arrangement of molecules on a large scale. Stated simply, polymer morphologies are either amorphous or crystalline. Amorphous molecules ...
any rock composed entirely of crystallized minerals without glassy matter. Intrusive igneous rocks-those that congeal at depth-are virtually always crystalline, whereas extrusive igneous rocks, or volcanic rocks, may be partly ... [2 Related Articles]
(from the article "mollusk") ...the stomach contents and form a long food-laden mucous mass called a protostyle, which abuts a chitinous area of epithelium in the stomach. Usually found within the style sac is ...
(from the article "Crystallinity categories of igneous rocks") Among the most fundamental properties of igneous rocks are crystallinity and granularity, two terms that closely reflect differences in magma composition and the differences between volcanic and various plutonic environments ...
any of a type of microscopic body occurring in such glassy igneous rocks as obsidian and pitchstone. Crystallites are regarded as incipient or embryonic crystals, though they often have no ... [4 Related Articles]
(from the article "Separations based on phase equilibria") Crystallization is a technique that has long been used in the purification of substances. Often, when a solid substance (single compound) is placed in a liquid, it dissolves. Upon adding ...
(from the article "human behaviour") ...intelligence, measured by tests that minimize the role of cultural knowledge, reflects the degree to which the individual has developed unique qualities of thinking through incidental learning. Crystallized intelligence, measured ...
cut crystal glass in which a decorative ceramic object is embedded. A Bohemian invention of the 18th century, cameo incrustation was taken up in Paris but had no vogue until ...
(from the article "geology") The science of crystallography is concerned with the geometric properties and internal structure of crystals. Because minerals are generally crystalline, crystallography is an essential aspect of mineralogy. Investigators in the ...
(from the article "Graham, Thomas") ...found that the relative rates of the effusion of gases are comparable to the diffusion rates. From examining the diffusion of one liquid into another, he divided particles into two ...
(from the article "The Brill Building") ...King's "Will You Love Me Tomorrow" for the Shirelles and "One Fine Day" for the Chiffons and Mann and Weil's "Uptown" and Pitney's "He's a Rebel" for the Crystals. Producer ...
(from the article "tear gas") ...air through the use of sprays, fog generators, or grenades and shells. The two most commonly used tear gases are omega-chloroacetophenone, or CN, and o-chlorobenzylidenemalononitrile, or CS. CN is the ...
(from the article "Hungary") ...Vienna Award" of November 2, gave Hungary the fringe of southern Slovakia inhabited by ethnic Hungarians. Imredy, disillusioned with the West, dismissed Kanya for the pro-Axis Istvan, Count Csaky, and ...
(from the article "Slovakia") ...leadership shift in the six parliamentary parties during 2007 occurred in early April. Bela Bugar, the longtime chairman of the opposition Party of the Hungarian Coalition (SMK), was defeated by ...
Hungarian short-story writer and music critic. He was a leading figure in the renaissance of Hungarian fiction at the beginning of the 20th century and, as a critic, one of ...
(from the article "Budapest") ...from the capital. It has also developed Hungary's largest bus terminal as well as its only commercial airport, Ferihegy International Airport. Csepel Free Port, downstream from the city centre on ...
(from the article "Danube River") ...Alfold plain until it reaches the Iron Gate gorge. The riverbed is shallow and marshy, and low terraces stretch along both banks. River accumulation has built a large number of ...
(from the article "creativity") In the late 20th century the Hungarian-born American psychologist Mihalyi Csikszentmihalyi studied more than 90 men and women who possessed the following characteristics: (1) they produced works that were publicly ...
(from the article "Football") In the UEFA Cup final on May 18, Sporting Lisbon had home-ground advantage in its own Jose Avalade Stadium against CSKA Moscow and scored first after 28 minutes through a ...
Hungarian painter. In the 1880s Csok studied at the Mintarajziskola (School of Drawing) in Budapest, at the Academy in Munich, and in Paris. In 1891 the Paris Salon awarded him ...
megye (county), southeastern Hungary. It is bordered by the counties of Jasz-Nagykun-Szolnok to the north and Bekes to the east, by Romania and Serbia to the south, and by the ...
Hungarian artist, considered by many critics to be Hungary's greatest painter. He belonged to no specific school of art, but his works included elements similar to those of the foremost ... [1 Related Articles]
(from the article "rocket and missile system") In about 1964 China began developing a series of liquid-fueled IRBMs given the NATO designation CSS, for Chinese surface-to-surface missile. (The Chinese named the series Dong Feng, meaning "East Wind.") ...
(from the article "rocket and missile system") ...solid-fueled SLBMs comprising the M-1, M-2 (1974), and M-20 (1977). The M-20, with a range of 1,800 miles, carried a one-megaton warhead. In the 1980s the Chinese fielded the two-stage, ...
company formed by the merger of the Chessie System, Inc., and Seaboard Coast Line Industries, Inc., in 1980. It operates railroads in 18 states, located mainly east of the Mississippi ... [2 Related Articles]
(from the article "telephone and telephone system") The first PCS to be implemented was the second-generation cordless telephony (CT-2) system, which entered service in the United Kingdom in 1991. The CT-2 system was designed at the outset ...
(from the article "mollusk") ...and radula) reduced; predominantly ciliary suspension feeders burrowing in soft sediments or attached by byssus gland of foot on hard substrata in 0-10,700 m; 1 mm to 1.35 m; 3 ...
(from the article "mollusk") ...cavity is found between the mantle rim and the body. The pallial complex is a collection of structures at the roof of the mantle cavity and typically contains at least ...
(from the article "spider") ...mostly tropical species. 3 tarsal claws; 4 to 6 spinnerets, posterior (lateral) pair very long; body hairy; web similar to funnel webs of Agelenidae.114 mostly tropical ...
(from the article "echinoderm") ...Devonian about 400,000,000-510,000,000 years ago; with a feeding arm and a complex stem composed in part of more than 2 series of plates.Middle Cambrian about 540,000,000 years ago; no ...
(from the article "gundi") Common gundis (Ctenodactylus gundi and C. vali) are found in parts of Morocco, Algeria, Tunisia, and Libya, but the Mzab gundi (Massoutiera mzabi) has the largest range, extending from southeastern ...
(from the article "gundi") Common gundis (Ctenodactylus gundi and C. vali) are found in parts of Morocco, Algeria, Tunisia, and Libya, but the Mzab gundi (Massoutiera mzabi) has the largest range, extending from southeastern ...
(from the article "annelid") ...parapodia in mid-region long and supported by aciculae; minute; 2 genera, Psammodrilus and Psammodriloides, each with a single species.No prostomial appendages; no parapodial lobes; setae arise directly from body ...
(from the article "annelid") No prostomial appendages; no parapodial lobes; setae arise directly from body wall; all setae simple; minute; examples of genera: Ctenodrilus, Zeppilina.Sedentary; prostomium pointed ...
(from the article "scale") ...but are covered with a peculiar enamel-like substance called ganoin. It is thought that true teeth developed from placoid scales. The advanced fish have either cycloid scales (e.g., carp) or ...
(from the article "Malpighiales") Ctenolophonaceae includes a single genus, Ctenolophon, with three species from West Africa and Malesia. They may be recognized by their opposite toothless leaves, and there are stipules between the petioles. ...
any of the numerous marine invertebrates constituting the phylum Ctenophora. The phylum derives its name (from the Greek ctene, or "comb," and phora, or "bearer") from the series of vertical ... [6 Related Articles]
(from the article "branchiopod") ...from Cretaceous; recent forms worldwide in temporary fresh waters but not in polar regions.Short-bodied forms with 6 pairs of trunk limbs, of which 5 bear filters; bivalved carapace ...
(from the article "moss animal") ...septa; zooids polymorphic; mainly marine; all seas; Jurassic to present, but presumed to have been established at least by the Ordovician; about 3,000 species.Zooids cylindrical to flat; walls not ...
(from the article "mimicry") ...and relatives), which need protective coloration to avoid alerting their prey, are able to provide acoustic warning to large animals that threaten them. Many moths of the families Arctiidae and ...
Greek physician and historian of Persia and India whose works were popular and influential in antiquity. In 405 BC Ctesias traveled to the Persian court, where he remained as physician ... [2 Related Articles]
(from the article "Aeschines") ...(including Athens) after the Battle of Chaeronea (338). The bitter hostility between Aeschines and Demosthenes worsened in the years that followed. In 336 Aeschines brought suit against a certain Ctesiphon ...
ancient city located on the left (northeast) bank of the Tigris River about 20 miles (32 km) southeast of modern Baghdad, in east-central Iraq. It served as the winter capital ... [10 Related Articles]
in medieval Irish literature, the central character of the Ulster (Ulaid) cycle. He was the greatest of the Knights of the Red Branch, i.e., the warriors loyal to Conor (Conchobar ... [5 Related Articles]
(from the article "Physical Sciences") ...material that allowed acetylene to be compressed and stored safely at a pressure almost 200 times higher. Greater amounts of the gas thus could be stored in smaller containers. The ...
(from the article "Vietnam") ...as the Rade (Rhade), Jarai, Chru, and Roglai-speak Austronesian languages, linking them to the Cham, Malay, and Indonesian peoples; others-including the Bru, Pacoh, Katu, Cua, Hre, Rengao, Sedang, Bahnar, Mnong, ...
Vietnamese scholar who contributed to the popular usage of Quoc-ngu, a romanized system of transcribing the Vietnamese language devised by mid-17th-century Portuguese missionaries and further modified by Alexandre de Rhodes, ...
(from the article "Berceo, Gonzalo de") ...a dialect which was then considered inferior to Galician-Portuguese, in order to bring religious learning to the common people. He used both Latin and folk sources and adhered consistently to ...
Nicaraguan poet (b. Nov. 4, 1912, Managua, Nic.-d. Jan. 2, 2002, Managua), was a leading exponent of the vanguardia, a literary movement that emerged in the early 1930s and sought ...
(from the article "bullfighting") ...and of course the matadors, who work the bull and eventually kill it in the bullfight's final act. Six bulls are usually killed during each corrida; three matadors, whose
(from the article "costumbrismo") ...go back to the Golden Age of Spanish literature in the 16th and 17th centuries, it grew into a major force in the first half of the 19th century, first ...
(from the article "pre-Columbian civilizations") ...village cultures. The Barra phase appears to have been transitional from earlier preagricultural phases and may not have been primarily dependent upon corn farming; but people of the Ocos and ...
