- 行业: Printing & publishing
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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.
Plants having variously modified, highly specialized leaves which capture and digest insects. The proteins of the digested insect bodies supply nitrogen, which otherwise may be unavailable to these plants in the places where they grow. Sometimes they are also called carnivorous (flesh-eating) plants.
Industry:Science
Musical instruments evolved from simple found objects: hollow logs, perhaps with animal skins stretched over the ends, bamboo tubes or large seashells, and stretched bowstrings. They are now classified as percussion instruments, wind instruments, and string instruments, but other divisions are possible.
Industry:Science
Oil and gas prospecting and exploitation are conducted on continental shelves and slopes in the seas around the world. Exploration for offshore petroleum and natural gas expanded rapidly after the end of World War II to include exploration, drilling, and production off the coasts of more than 75 nations.
Industry:Science
Processes based on heat to join and sever metals. Welding and cutting are grouped together because, in many manufacturing operations, severing precedes welding and involves the same production personnel. Welding is one of the joining processes, others being riveting, bolting, gluing, and adhesive bonding.
Industry:Science
Receptors that provide the organism with information about such mechanical changes in the environment as movement, tension, and pressure. In higher animals receptors are actually the only means by which information of the surroundings is gained and by which reactions to environmental changes are started.
Industry:Science
Microbial flora harbored by normal, healthy persons. The normal fetus is sterile, but during and after birth the infant is exposed to an increasing number of microorganisms. Subsequently, those microorganisms best adapted to survive and colonize particular sites establish themselves and become predominant.
Industry:Science
Nearly all commercial nuclear reactors now in operation are based on a conventional design in which ordinary light water is the coolant. However, in recent years there has been increasing interest in alternative designs, including the modular high-temperature gas-cooled reactor and the lead-cooled reactor.
Industry:Science
New sensing technologies detect and analyze, often in real time, pollutants in the water, air, and soil. The information collected by such devices extends environmental scientific and engineering knowledge, protects public health and the environment, and contributes to regulatory monitoring and compliance.
Industry:Science
One of the orders of the class Amphibia, also known as the Caudata. The members of this order are the tailed amphibians, or salamanders, and are distinguished superficially from the frogs and toads (order Anura) by the possession of a tail, and from the caecilians (order Apoda) by the possession of limbs.
Industry:Science
Nutraceuticals comprise any food or ingredient that provides medical and health benefits, particularly in the prevention or treatment of diseases. Current research focuses on antioxidants, vitamins, dietary fiber, and fatty acids. This article reviews selected foods that are sources of these nutraceuticals.
Industry:Science
