- 行业: Printing & publishing
- Number of terms: 178089
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- 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.
<i>Simmondsia chinensis</i>, the only plant known to produce and store a liquid wax in its seed. The jojoba plant is native to the southwestern United States and Mexico. It is tolerant of some of the highest temperatures and most arid regions, and is being domesticated as a crop for hot low-rainfall regions around the world. A broadleaf evergreen shrub that is typically 3–10 ft (1–3 m) in height, it can grow as tall as 20 ft (6 m).
Industry:Science
<i>Staphylococcus aureus</i> is a gram-positive bacterium (<b>Fig. 1</b>) that can be found commonly in or on various animal species, including humans. It is an opportunistic pathogen, that is, a bacterium that normally coexists peacefully with its host, living on the skin or in areas such as the nasal passages or intestinal tract without causing problems, but one that can cause disease in certain situations.
Industry:Science
<i>Theobroma cacao</i>, a small tropical tree 13–19 ft (4–6 m) in height that is cultivated for the almond-shaped seeds, 0.8–1.2 in. (2–3 cm) long, which are used to make chocolate. It is a member of the tea family (Thealeae) in the order Theales. The species is native to the rainforest of the Amazon basin, and two regions of distribution in pre-Columbian times are recognized. The crop was first cultivated in Central America and northern South America, the varieties found there being known as Criollos. The second region comprises the Amazon and Orinoco basins, where the cacao populations are known as Amazonian Forastero. The second type is more commonly cultivated, particularly in Brazil, Ivory Coast, Ghana, and Nigeria, which produce 75% of the world annual output.
Industry:Science
A desert plant, <i>Parthenium argentatum</i>, of the composite family (Compositae), which produces rubber. It is a native perennial shrub growing in the Chihuahuan Desert of north-central Mexico and southwestern Texas. The plant is bushy with dense branches, thick clusters of silverlike leaves, a strong taproot, and a thick crown (see <b>illus.</b>). At maturity the plant varies in height from 30 to 40 in. (76 to 102 cm).
Industry:Science
A perennial vine legume, capable of rapid growth in a warm temperate, humid subtropical climate. The name kudzu has a Japanese origin. Kudzu (<i>Pueraria thunbergiana</i>) was introduced into the United States in 1876 and used as a shade plant until 1906, when a few enthusiastic growers in the southeastern United States began to use it as a forage crop, a practice that continued for 30 years. It was then promoted as a soil-conserving plant. However, much prejudice developed against its use because of its spread into forest borders, drainage ditches, and other areas.
Industry:Science
A phaneritic (visibly crystalline) plutonic rock composed chiefly of sodic plagioclase (oligoclase or andesine), alkali feldspar (microcline or orthoclase, usually perthitic), quartz, and subordinate dark-colored (mafic) minerals (biotite, amphibole, or pyroxene). Granodiorite is intermediate between granite and quartz diorite (tonalite). Alkali feldspar is dominant over plagioclase in granite but is subordinate to plagioclase in granodiorite. Quartz diorite carries little or no alkali feldspar. For convenience granite and granodiorite are commonly grouped and referred to as granite.
Industry:Science
A subclass of the class Telosporea. These protozoans occur principally as extracellular parasites in the digestive tracts and body cavities of invertebrates. Their spores are formed directly by the zygote. There are three orders: the Archigregarinida, whose life cycle embraces both sexual and asexual phases; the Eugregarinida, which increases only by sporogony; and the Neogregarinida, whose life cycle involves schizogony and gamont formation. The most familiar gregarines belong to the Eugregarinida and are represented by two types: cephaline, whose trophozites (sporadins) are divided into an anterior protomerite and a larger posterior deutomerite by a transverse septum; and acephaline, which lack the septum.
Industry:Science
A 1st-magnitude star in the constellation Virgo. Spica (α Virginis) is a hot main-sequence star of spectral type B1, effective temperature about 25,000 K (45,000°F), at a distance of 80 parsecs from the Sun (2.59 × 10<sup>15</sup> km or 1.61 × 10<sup>15</sup> mi).
Industry:Science
A bacterial disease caused by a <i>Leptospira</i> species that is now recognized as one of the new, emerging infectious diseases. The Centers for Disease Control and Prevention (CDC) has referred to “new, reemerging, or drug-resistant infections whose incidence in humans has increased within the past two decades or whose incidence threatens to increase in the near future.” Leptospirosis, presumed to be the most widespread zoonosis (a disease of animals that may be transmitted to humans) in the world, is characterized by a broad spectrum of clinical manifestations, varying from a subclinical infection (showing no symptoms) to a fatal disease.
Industry:Science
A bacterial genus in the family Vibrionaceae comprising oxidase-positive, facultatively anaerobic, monotrichously flagellated gram-negative rods. The mesophilic species are <i>A. hydrophila, A. caviae</i> and <i>A. sobria</i>; the psychrophilic one is <i>A. salmonicida</i>. Aeromonads are of aquatic origin and are found in surface and waste water but not in seawater. They infect chiefly cold-blooded animals such as fishes, reptiles, and amphibians and only occasionally warm-blooded animals and humans.
Industry:Science
