(from the article "coloration") The polycyclic quinones occur in some bacteria, fungi, and parts of higher plants. One of the more interesting representatives is the aphin group, so called because of their initial recovery from the hemolymph (circulating fluid) of several coloured species of aphids; aphids parasitize plants, as do the other quinone-assimilating insects.
(from the article "Demosthenes") Despite this self-improvement program, his first youthful speaking efforts in the public Assembly met with disaster; he was laughed at by his audiences. His lawsuits against Aphobus and two other guardians in 363 were more successful; they produced little money, but he learned much about speaking strategy and methods of ...
(from the article "speech") ...The oral cavity is reconnected directly to the esophagus. Having lost his pulmonary activator (air from the lungs) and laryngeal sound generator, such an alaryngeal patient is without a voice (aphonic) and becomes effectively speechless; the faint smacking noises made by the remaining oral structures for articulation are practically unintelligible. ...
a concise expression of doctrine or principle or any generally accepted truth conveyed in a pithy, memorable statement. Aphorisms have been especially used in dealing with subjects that were late in developing their own principles or methodology-for example, art, agriculture, medicine, jurisprudence, and politics. The term was first used in ... [2 Related Articles]
(from the article "inland water ecosystem") ...this zone the production of biochemical energy through photosynthesis is greater than its consumption through respiration and decomposition. Animals and decomposers are found in both the photic and aphotic zones. In the aphotic zone, also called the tropholytic zone, the consumption of energy exceeds its production. The zones are demarcated ...
any of various forms of stimulation thought to arouse sexual excitement. Aphrodisiacs may be classified in two principal groups: (1) psychophysiological (visual, tactile, olfactory, aural) and (2) internal (stemming from food, alcoholic drinks, drugs, love potions, medical preparations). [1 Related Articles]
ancient city of the Caria region of southwestern Asia Minor (Anatolia, or modern Turkey), situated on a plateau south of the Maeander River (modern Buyuk Menderes). Remains of an Ionic temple of Aphrodite and of a stadium and portions of a bathhouse have long been evident, but, beginning in 1961, ...
ancient Greek goddess of sexual love and beauty, identified with Venus by the Romans. The Greek word aphros means "foam," and Hesiod relates in his Theogony that Aphrodite was born from the white foam produced by the severed genitals of Uranus (Heaven), after his son Cronus threw ... [13 Related Articles]
the larger of two continent-sized highland areas (terrae) on the planet Venus. Aphrodite lies along Venus's equator and extends from about longitude 60° E to 150° E. It is about twice the size of Ishtar Terra and comparable in surface area to South America. [1 Related Articles]
(from the article "Cnidus") ...marble statue of the seated Demeter there. Later excavation revealed the axial plan of the ancient city, a few private dwellings, and numerous public buildings. The most significant of these is the Temple of Aphrodite, a circular Doric temple, excavated by Iris C. Love in 1970. At this site Love ...
(from the article "froghopper") ...occur in enormous numbers and secrete large amounts of spittle, which drips from tree branches like rain. The sugarcane froghopper (Tomaspis saccharina) is very destructive in Trinidad. Aphrophora species are serious pests of willow and pine. One group of froghoppers secretes small calcareous tubes that resemble snail shells and were ...
(Greek aphthartos, "incorruptible"), a Christian heresy of the 6th century that carried Monophysitism ("Christ had but one nature and that divine") to a new extreme; it was proclaimed by Julian, bishop of Halicarnassus, who asserted that the body of Christ was divine and therefore naturally incorruptible and impassible; Christ, however, ... [1 Related Articles]
(from the article "flea beetle") ...and melon vines, E. hirtipennis attacks tobacco plants, and E. fuscula eats tomatoes and potatoes. The flea beetle Aphthona flava has been released in the United States and Canada as a biological control for the weed leafy spurge.
(from the article "Banda Islands") ...outstanding harbour; the coral gardens beneath the sea are virtually unrivaled. Great Banda has coral rock to a height of 400 feet (120 metres), with lava and basalt up to 1,758 feet (536 metres). Mount Api, one of the island group, is an active volcano 2,200 feet (670 metres) in ...
town, port, and capital (since 1959) of Samoa. It is located on the northern coast of Upolu Island, in the South Pacific Ocean. The Apia Observatory, the legislative council chambers, and a broadcasting station are on the Mulinuu Peninsula, a promontory dividing Apia Harbour from Vaiusu Bay. The 19th-century Scottish ... [6 Related Articles]
the parsley family, in the order Apiales, comprising between 300 and 400 genera of plants distributed throughout a wide variety of habitats, principally in the north temperate regions of the world. Most members are aromatic herbs with alternate, feather-divided leaves that are sheathed at the base. The flowers are often ... [1 Related Articles]
carrot order of flowering plants, containing some 5,500 species. The main families in the order are Apiaceae (parsley family) and Araliaceae (ginseng family), which are closely related; some researchers advocate merging the two families into one expanded Apiaceae family. Both these families, in turn, are most closely related to Pittosporaceae, ...
(from the article "map") ...textbooks of geography, astronomy, history, and natural sciences, all illustrated with maps and figures, first appeared in the 16th century. One of the earliest and best known was that of Petrus Apianus in 1524, the popularity of which extended to 15 more editions. That of Sebastian Munster, published in 1544, ...
(from the article "Zosimus, Saint") Even though he confirmed Innocent's judgment, Zosimus disturbed the African episcopate in a new controversy by espousing the cause of a disreputable priest called Apiarius, who had been excommunicated by Bishop Urbanus of Sicca Veneria. Defying African canon law, Zosimus dispatched legates to Africa with orders that included reorganizing the ...
(from the article "New Zealand") ...85-m offshore patrol vessels and four 55-m inshore patrol craft. The first Victoria Cross for gallantry to be awarded to a New Zealand soldier since 1946 was bestowed on Special Air Services Corp. Willy Apiata for valour in Afghanistan. Apiata, age 35, had carried a seriously wounded comrade over 70 ...
(from the article "root") Roots grow in length only from their ends. The very tip of the root is covered by a protective, thimble-shaped root cap. Just behind the root cap lies the apical meristem, a tissue of actively dividing cells. Some of the cells produced by the apical meristem are added to the ...
(from the article "fungus") The hypha may be roughly divided into three regions: (1) the apical zone about 5-10 micrometres (0.0002-0.0004 inch) in length, (2) the subapical region, extending about 40 micrometres back of the apical zone, which is rich in cytoplasmic components, such as nuclei, Golgi apparatus, ribosomes, mitochondria, the endoplasmic reticulum, and ...
(from the article "Thailand") ...Fah talai jone (2000; Tears of the Black Tiger), the story of an outlaw, which parodies other Thai as well as Western action films. Two films directed by Apichatpong Weerasethakul, Sud pralad (2004; Tropical Malady) and Sud sanaeha (2002; Blissfully Yours), ...
(from the article "cookbook") Another famous gourmet of the ancient world was Apicius, a wealthy Roman merchant of the reign of Tiberius (AD 14-37). Apicius' colossal banquets eventually drove him to bankruptcy and suicide, but he left behind a cookbook so prized that it has been preserved, in numerous editions, down to the 20th ...
(from the article "articulation") ...lip shape, and height of the larynx used to produce a vowel. The primary articulation may still permit some range of movement for other articulators not involved in its formation. For example, an "apico alveolar" articulation involves the tip of the tongue but leaves the lips and back of the ...
any protozoan of the (typically) spore-producing phylum Apicomplexa, which is called by some authorities Sporozoa. All apicomplexans are parasitic and lack contractile vacuoles and locomotor processes. Apicomplexans live within the body cavities or the cells of almost every kind of animal, including other apicomplexans. Some genera are pathogenic: Plasmodium causes ... [4 Related Articles]
(from the article "bee") ...noted for their elaborate nest structures; Anthophoridae (including carpenter bees and cuckoo bees), a large family that includes three subfamilies that were once considered to be subfamilies of Apidae; and Apidae (bumblebees, honeybees, and digger, or mining, bees).
(from the article "primate") ...has come the first evidence of the emerging Catarrhini. A number of different genera have been described from Fayum, including Catopithecus, Proteopithecus, Apidium, Qatrania, Propliopithecus, Oligopithecus, Parapithecus, and Aegyptopithecus. The first two of these,...
(from the article "prophecy") In Mari, the two key words for prophet are muhhum (an ecstatic, a frenzied one) and apilum (the one who responds). Both may be connected with the cult, but there are incidents indicating that the muhhum was not bound to the cultic setting but received his message in a direct ...
(from the article "Podostemaceae") The principal genera are Apinagia (50 species, tropical South America), Ledermanniella (43 species, tropical Africa and Madagascar), Rhyncholacis (25 species, northern tropical South America), Marathrum (25 species, Central America and northwestern tropical South America),...
in ancient Egyptian religion, sacred bull deity worshipped at Memphis. The cult of Apis originated at least as early as the 1st dynasty (c. 2925-c. 2775 BCE). Like other bull deities, Apis was probably at first a fertility god concerned with the propagation of grain and herds, but he became ... [7 Related Articles]
(from the article "Benin") ...on August 1, 1960. During the period of decolonization, the nationalist movement in Dahomey became fragmented, with the emergence of three regionally based political parties-led by Sourou-Migan Apithy (president in 1964-65), Justin Ahomadegbe (1972), and Hubert Maga (1960-63 and 1970-72), drawing their principal support respectively from...
city, central Tlaxcala estado (state), east-central Mexico. It lies at 7,900 ft (2,400 m) above sea level in the cool Apizaco valley of the Sierra Madre Oriental. Formerly known as Barron Escandon, the city is a commercial, manufacturing, and transportation centre. Corn (maize), beans, barley, and wheat, ...
(from the article "mollusk") ...the sexes are separate; development includes spiral cleavage and a primitively lecithotrophic trochus larva; about 50,000 marine, limnic, and terrestrial species.Worm-shaped and without shells; marine, mostly in deep water. Possibly representive of the primitive molluscan condition or a secondary reduction from more...caudofoveatesolenogaster
(from the article "Benin") The Benin plateaus, four in number, are to be found in the environs of Abomey, Ketou, Aplahoue (or Parahoue), and Zagnanado. The plateaus consist of clays on a crystalline base. The Abomey, Aplahoue, and Zagnanado plateaus are from 300 to 750 feet high, and the Ketou plateau is up to ...
(from the article "algae") ...red algae produce monospores (walled, nonflagellate, spherical cells) that are carried by water currents and upon germination produce a new organism. Some green algae produce nonmotile spores called aplanospores. In contrast, zoospores lack true cell walls and bear one or more flagella. These flagella allow zoospores to swim to a ...
disease in which the bone marrow fails to produce an adequate number of blood cells. There may be a lack of all cell types-white blood cells (leukocytes), red blood cells (erythrocytes), and platelets-resulting in a form of the disease called pancytopenia, or there may be a lack of one or ... [1 Related Articles]
(from the article "blood disease") ...the constantly increased rate of their destruction. Parvovirus is known to cause this transient cessation of erythropoiesis, and the development of severe anemia under these circumstances is termed aplastic crisis. Removal of the spleen, which always is enlarged, cures the anemia by eliminating the site of sequestration and destruction of ...
any intrusive igneous rock of simple composition, such as granite composed only of alkali feldspar, muscovite mica, and quartz; in a more restricted sense, uniformly fine-grained (less than 2 millimetres [0.08 inch]), light-coloured, intrusive igneous rocks that have a characteristic granular texture. Unlike pegmatite, which is similar but coarser grained, ...
(from the article "tunicate") Gonads unpaired, either within or behind intestinal loop; body may be divided into thorax and abdomen.Gills simple, unfolded and without longitudinal vessels or bars; digestive tract and genital organs in posterior part of...
(from the article "mollusk") ...provide camouflage, or to inhibit the predator's sense of smell. For example, the ink in cephalopods, the luminous cloud secreted by some deep-sea squids, and the purple fluid from the sea hare (Aplysia; a gastropod of the subclass Opisthobranchia) distract and confuse the predator and conceal the prey. Camouflage or ...
(from the article "nervous system") Elementary forms of learning and memory have been studied at a cellular level by analysis of the neuronal activity of the marine snail (Aplysia californica). This simple mollusk withdraws its gill and siphon in response to a mild tactile stimulus. The neural circuit for this reflex consists of a sensory ...
(from the article "respiration, human") ...of ventilation. During sleep and anesthesia, lowering carbon dioxide levels three to four millimetres of mercury below values occurring during wakefulness can cause a total cessation of breathing (apnea).respiration, humanSleep...of the upper airways. In some individuals, this intermittent obstruction occurs ...
(from the article "respiration, human") ...is characterized by prolonged inspiratory activity that may last for several minutes. This type of breathing, which occasionally occurs in persons with diseases of the brain stem, is called apneustic breathing.
(from the article "pre-Columbian civilizations") ...as the seventh emperor, ensuring a peaceful succession to the throne. Yahuar Huacac was never very healthy and apparently spent most of his time in Cuzco. His brothers Vicaquirao (Wika-k'iraw) and Apo Mayta ('Apu Mayta) were able military leaders and incorporated lands south and east of Cuzco into the Inca ...
active volcano, south central Mindanao, 20 miles (32 km) west of Davao City; it is the highest point in the Philippines, rising to 9,692 feet (2,954 metres). Part of the Cordillera Central, it is covered by a forest of tall, tropical hardwoods; two subsidiary peaks nearly match its height. Mount ... [2 Related Articles]
(from the article "environmentalism") The vision of the environmental movement of the 1960s and early '70s was generally pessimistic, reflecting a pervasive sense of "civilization malaise" and a conviction that the Earth's long-term prospects were bleak. Works such as Rachel Carson's Silent Spring (1962), Garrett Hardin's The Tragedy of the Commons ...
literary genre that foretells supernaturally inspired cataclysmic events that will transpire at the end of the world. A product of the Judeo-Christian tradition, apocalyptic literature is characteristically pseudonymous; it takes narrative form, employs esoteric language, expresses a pessimistic view of the present, and treats the final events as imminent. [5 Related Articles]
(from the article "New Religious Movement") Some NRMs are characterized by an apocalyptic or millenarian dimension-the belief that the end of the world is imminent and that a new heaven or new earth will replace the old one. There are apocalyptic strains in many world religions, but it is Christian millenarianism-the belief that Christ will establish ...
eschatological (end-time) views and movements that focus on cryptic revelations about a sudden, dramatic, and cataclysmic intervention of God in history; the judgment of all men; the salvation of the faithful elect; and the eventual rule of the elect with God in a renewed heaven and earth. Arising in Zoroastrianism, ... [15 Related Articles]
