- 行业: Printing & publishing
- Number of terms: 178089
- Number of blossaries: 0
- Company Profile:
McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
A family of viral agents. They have been associated with pharyngoconjunctival fever (types 3, 4, and 7, in particular), acute respiratory disease (ARD), epidemic keratoconjunctivitis (type 8), and febrile pharyngitis in children (types 1, 2, and 5). A number of types have been isolated from tonsils and adenoids removed from surgical patients. Although most of the illnesses caused by adenoviruses are respiratory, adenoviruses are frequently excreted in stools, and certain adenoviruses have been isolated from sewage. Distinct serotypes of mammalian (genus <i>Mastadenovirus</i>) and avian (genus <i>Aviadenovirus</i>) are known. These genera contain 87 and 14 species, respectively.
Industry:Science
A family of viruses distinguished by four characteristics: (1) genetic information is in the form of ribonucleic acid (RNA); (2) each single virus particle or virion (<b>illus.<i>c</i></b>, arrow) possesses the enzyme reverse transcriptase; (3) virion morphology consists of two proteinaceous structures, a dense core (illus.<i>a</i>) and an envelope (illus.<i>a</i>) that surrounds the core; and (4) the viral reproductive cycle requires the synthesis of a deoxyribonucleic acid (DNA) copy of the viral genome and insertion of that DNA into the genome of the host cell.
Industry:Science
A fan moves gases by producing a low compression ratio, as in ventilation and pneumatic conveying of materials. The increase in density of the gas in passing through a fan is often negligible; the pressure increase or head is usually measured in inches of water.
Industry:Science
A fast-drying, hard, high-gloss surface coating. Lacquers are made by dissolving a cellulose derivative and other modifying materials in a solvent and adding pigment if desired.
Industry:Science
A fastener with a head at one end and a hole at the other used to join a clevis to a rod. A clevis is a yoke with a hole formed or attached at one end of a rod (see <b>illus</b>.). When an eye or hole of a second rod is aligned with the hole in the yoke, a clevis pin can be inserted to join the two. A cotter pin can then be inserted in the hole of the clevis pin to hold it in, yet the fastening is readily detachable. This joint is used for rods in tension where some flexibility is required.
Industry:Science
A fast-growing tree, <i>Ochroma lagopus</i>, widely distributed in tropical America, especially in Ecuador. The leaves are simple, angled, or lobed, and the flowers are large and yellowish-white or brownish and they are terminal on the branches.
Industry:Science
A fatal disease of both domestic and exotic cats (particularly cheetahs) caused by feline infectious peritonitis virus, a member of the Coronaviridae family. There are multiple strains of the virus which vary in virulence. Feline infectious peritonitis virus is closely related morphologically, genetically, and antigenically to other members of the Coronaviridae and arises as mutants from feline enteric coronaviruses, which infect cats but generally induce very mild or inapparent gastroenteritis. All coronaviruses are single-stranded ribonucleic acid (RNA) viruses with poor or no error correction during replication, resulting in relatively high mutation rates.
Industry:Science
A fatal viral disease of dogs and other carnivores, with a worldwide distribution. Canine distemper virus has a wide host range; most terrestrial carnivores are susceptible to natural canine distemper virus infection. All animals in the families Canidae (for example, dog, dingo, fox, coyote, wolf, jackal), Mustelidae (for example, weasel, ferret, mink, skunk, badger, stoat, marten, otter), and Procyonidae (for example, kinkajou, coati, bassariscus, raccoon, panda) may succumb to canine distemper virus infection. Members of other Carnivora families, including domestic cats and swine, may become subclinically infected. The virus has also been isolated from large cats (lions, tigers, leopards) that have died in zoological parks in North America, from wild lions in the Serengeti National Park (Tanzania), and from wild javelinas (collared peccaries).
Industry:Science
A fatty substance formed in the intestinal tract of the sperm whale (<i>Physeter catodon</i>). There is a question as to whether the origin of ambergris is normal or pathological, but it does serve as protection from the horny indigestible portions of the squid and cuttlefish that constitute much of the whale's diet.
Industry:Science
A feature of the Earth's surface that rises high above its base and has generally steep slopes and a relatively small summit area. Commonly the features designated as mountains have local heights measurable in thousands of feet or many hundreds of meters, lesser features of the same type being called hills, but there are many exceptions.
Industry:Science
