- 行业: Printing & publishing
- Number of terms: 178089
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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.
One of the larger orders of placental mammals whose members are modified for feeding on flesh. The order Carnivora (“meat eater”) consists of 12 Recent families, 115 genera, and 280 species that occur naturally throughout the world, except in Australia, New Guinea, New Zealand, Antarctica, and many oceanic islands. In Australia, the dingo, a domestic dog (<i>Canis familiaris</i>), was introduced by aboriginal humans and the fox was introduced by later inhabitants.
Industry:Science
Rocks formed of any of the materials that accumulate at Earth's solid surface at ambient temperatures, regardless of their consistency. Together with lava flows, sedimentary rocks form a cover of stratified material, known as the stratisphere, that, lying on igneous and metamorphic rocks, covers over two-thirds of the lands and nearly all of the ocean floor. Generally measured in hundreds to a few thousand meters, it locally reaches up to 15 km (9 mi) in thickness.
Industry:Science
Organisms that are classified in the kingdom Fungi and given the class name Myxomycetes, following the rules of botanical nomenclature; or classified in the kingdom Protista at various taxonomic ranks, as class Mycetozoa, following the rules of zoological nomenclature. Evolutionary origins are controversial, but based on DNA sequencing techniques, many now believe that the Myxomycetes diverge early on in the tree of life in the region where other protists are found.
Industry:Science
Inflammation of the mammary gland. This condition is most frequently caused by infection of the gland with bacteria that are pathogenic for this organ. It has been described in humans, cows, sheep, goats, pigs, horses, and rabbits. Mastitis causes lactating women to experience pain when nursing the child, it damages mammary tissue, and the formation of scar tissue in the breast may cause disfigurement. It also is the most economically important disease of dairy cows.
Industry:Science
One of the two subphyla into which the phylum Echinodermata had been customarily divided. The Eleutherozoa are now best considered as comprising at least two distinct subphyla: (1) the Echinozoa, spherical-bodied forms with meridional symmetry; and (2) the Asterozoa, star-shaped forms with radially divergent axes of symmetry. The Echinozoa would seem to have arisen from ancestors similar to cystoids, whereas the Asterozoa seem to be derived from crinoidlike forms.
Industry:Science
Research over the past two decades has resulted in a major change in how plant cell walls are perceived. Long gone is the early notion of the wall as a rigid static box that acts mostly as a structural support. A newly evolved perspective of the wall sees it as both a highly complex and dynamic structural matrix and as a compartment with many roles. These roles include defining cell size and shape and mediating interactions between the plant cell and its environment.
Industry:Science
Land protection, including the establishment of parks, game reserves, and wildlife sanctuaries, is the major strategy used by both governments and nongovernmental organizations to counter the current extinction crisis. At present, roughly 9% of the Earth's land surface and 1% of the global marine area are protected to some degree. It is widely agreed that these levels fall well below the amounts needed to protect the variety of species and ecosystems across the world.
Industry:Science
One of the two subclasses of liverworts (class Hepaticopsida). The gametophytes are ribbonlike or rosette-shaped thalli, usually showing considerable internal tissue differentiation. The rhizoids may be both smooth and internally pegged on the same thalli. Oil bodies, if present, are restricted to scattered cells that lack chloroplasts. The antheridia are usually ovoid, and the archegonia usually consist of six rows of cells. The sporophytes are generally reduced.
Industry:Science
Intelligence is the capacity to acquire and apply knowledge. In the context of intelligent vehicles, it refers to the ability of a vehicle to proactively support the driver or the driver's intent. This is an explicit move from the traditional vehicle manufacturer's goal of realizing the driver's intent in an accurate, linear, and reliable manner to a new goal of actively modifying the driver's intent, with the eventual possibility of completely automatic vehicle control.
Industry:Science
Radio transmission accomplished by variation of the frequency aspect of a radio-frequency (RF) carrier signal by an input signal (called the modulating signal). The frequency-modulation (FM) technique was invented by Major Edwin A. Armstrong in the 1930s. FM radio broadcasting offers a number of advantages over amplitude-modulation (AM) radio broadcasting, most significantly higher audio fidelity and greater immunity to atmospheric and human-made sources of interference.
Industry:Science
