- 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.
Organic compounds possessing one or more basic amino groups and one or more acidic carboxyl groups. Of the more than 80 amino acids which have been found in living organisms, about 20 serve as the building blocks for the proteins.
Industry:Science
In the foreseeable future, robots will be used in everyday life. Some robots are already commercially available for vacuuming, for mowing, and as “pets.” Currently these robots do not have a humanoid form, but eventually they will.
Industry:Science
Principles which state that the total values of specified quantities remain constant in time for an isolated system. Conservation laws occupy enormously important positions both at the foundations of physics and in its applications.
Industry:Science
Materials added to the soil, or applied directly to crop foliage, to supply elements needed for plant nutrition. These materials may be in the form of solids, semisolids, slurry suspensions, pure liquids, aqueous solutions, or gases.
Industry:Science
One of several kinds of time scales used in astronomy, whose primary application is as part of the coordinate system to locate objects in the sky. It is also the basis for determining the solar time commonly used in everyday living.
Industry:Science
Particles obeying unconventional forms of quantum statistics. For many years, only two forms of quantum statistics were believed possible, Bose-Einstein and Fermi-Dirac, but it is now realized that a continuum of possibilities exists.
Industry:Science
One of the minor groups of wormlike marine animals. Once linked with the Echiurida and the Sipunculida under the term Gephyrea, it has since been recognized as a separate phylum of the animal kingdom with uncertain zoological affinities.
Industry:Science
Materials which are electrical insulators or in which an electric field can be sustained with a minimal dissipation of power. A solid is a dielectric if its valence band is full and is separated from the conduction band by at least 3 eV.
Industry:Science
Minerals containing the sulfate anion (SO<sub>4</sub><sup>2−</sup>). Most metals and their ores react with sulfuric acid to give metal sulfates, and oxidation of metal sulfides produces sulfates. Gypsum is the most common sulfate mineral.
Industry:Science
Launched in 1990, the Hubble Space Telescope has invigorated astronomy with major discoveries. Its contribution to the understanding of the universe has taken place at a rate nearly unprecedented for any single new astronomical instrument.
Industry:Science
