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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.
A science dealing with the physical, chemical, and biological properties of foods, in addition to the factors affecting them and their ultimate effects upon the sensory, nutritional, and storage properties and the safety of foods. Food properties are influenced by growing, harvesting, and slaughtering practices, preservation and preparation methods, processing and storage conditions, and packaging. Food science and its applications must be further concerned with economics and marketing; food preferences of various populations; quality assurance and control; regulatory aspects dealing with safety, wholesomeness, and honest representation; and the production of affordable, quality food on a worldwide basis. Therefore, food science interfaces with and draws upon many disciplines, including chemistry, physics, mathematics, the plant and animal sciences, biochemistry, enzymology, microbiology, genetics, engineering, statistics, computer science, nutrition, toxicology, psychology, and law.
Industry:Science
A scientific discipline concerned with the chemical composition of the Earth's atmosphere. Topics include the emission, transport, and deposition of atmospheric chemical species; the rates and mechanisms of chemical reactions taking place in the atmosphere; and the effects of atmospheric species on human health, the biosphere, and climate.
Industry:Science
A scientific discipline in which microscopes are used to solve chemical problems. The unique ability to form a visual image of a specimen, to select a small volume of the specimen, and to perform a chemical or structural analysis on the material in the selected volume makes chemical microscopy indispensable to modern chemical analysis.
Industry:Science
A scientific discipline that applies principles of evolutionary biology to the study of animal and human social behavior. It is a synthesis of ethology, ecology, and evolutionary theory in which social behavior is viewed as a product of natural selection and other biological processes.
Industry:Science
A scientific discipline that uses immunological methods to study the inheritance of traits. Traditionally, immunogenetics has been concerned with moieties that elicit immune response, that is, with antigens (antigenic determinants). It has now broadened its scope to study also the genetic control of the individual's ability to respond to an antigen.
Industry:Science
A seal is used to make pressure-proof the interface (contacting surfaces) between two parts that have frequent or continual relative rotational or translational motion; such seals are known as dynamic seals, as compared with static seals. While the pressure in seals is lower than that in gaskets, the motion hinders their effectiveness so that there are more types of seals than gaskets, each type attempting to serve its environment. The materials are leather, rubber, cotton, and flax, and for piston rings, cast iron. The forms of nonmetallic seals are rectangular, V ring, and O ring. Cartridge seals are available for rolling-contact bearings. Special seals include carbon ring and labyrinth seals for turbines and mechanical seals for pumps.
Industry:Science
A seal usually used for high pressure as in steam and hydraulic applications. The motion between parts may be infrequent as in valve stems, or continual as in pump or engine piston rods. There is no sharp dividing line between seals and packing; both are dynamic pressure resistors under motion.
Industry:Science
A seamount is a mountain that rises from the ocean floor; a submerged flat-topped seamount is termed a guyot. By arbitrary definition, seamounts must be at least 3000 ft (about 900 m) high, but in fact there is a continuum of smaller undersea mounts, down to heights of only about 300 ft (100 m). Some seamounts are high enough temporarily to form oceanic islands, which ultimately subside beneath sea level. There are on the order of 10,000 seamounts in the world ocean, arranged in chains (for example, the Hawaiian chain in the North Pacific) or as isolated features. In some chains, seamounts are packed closely to form ridges (for example, the Walvis Ridge in the South Atlantic). Very large oceanic volcanic constructions, hundreds of kilometers across, are called oceanic plateaus (for example, the Manihiki Plateau in the South Pacific).
Industry:Science
A search engine permits users to search the contents of a repository. Most search engines today provide the ability to search content from the World Wide Web, not the Internet. While search engines exist for all sorts of content (such as images, music, video, news, and advertising), this article will focus on searching Web pages.
Industry:Science
A secondary, planar structure of deformed rocks. A cleavage is penetrative and systematic, as opposed to fractures and shear zones which may occur alone or in widely spaced sets. It is generally better developed in fine grained rocks than in coarse ones. Application of the term derives from the ability to split rocks along the structure.
Industry:Science
