- 行业: Printing & publishing
- Number of terms: 178089
- Number of blossaries: 0
- 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.
The harmful effects of ionizing radiation on plant and animal cells and tissues. Although the mechanisms of these changes are still incompletely known, a wealth of information has been acquired about them.
Industry:Science
The development of strategies to allocate and conserve resources, with the ultimate goal of regulating the impact of human activities on the surrounding environment. “Environment” here usually means the natural surroundings, both living and inanimate, of human lives and activities. However, it can also mean the artificial landscape of cities, or occasionally even the conceptual field of the noosphere, the realm of communicating human minds.
Industry:Science
The Earth's water supply and its natural distribution. Although water is a renewable resource, which is continually being replaced by precipitation, it is not evenly distributed and is scarce in many areas.
Industry:Science
The field of knowledge concerned with collecting, analyzing, and presenting data. Not only workers in the physical, biological, and social sciences, but also engineers, business managers, government officials, market analysts, and many others regularly use statistical methods in their work. The methods range from simple counting to complex mathematical systems designed to extract the maximum amount of information from very extensive data.
Industry:Science
The force that holds atoms together in molecules and solids. Chemical bonds are very strong. To break one bond in each molecule in a mole of material typically requires an energy of many tens of kilocalories.
Industry:Science
The first remains of pterosaurs were found in Germany in the 1780s, and it was not clear what sort of animals they were. Regarded as aberrant birds by some and aberrant bats by others, they were established as reptiles by the French comparative anatomist Georges Cuvier in the early 1800s. He noted they were not at all like typical reptiles: they stood erect like birds, they had hollow bones and probably an insulatory covering, and they flew.
Industry:Science
The gravity flow of particulate solids such as ceramic powders, plastic pellets, and ores in the form of separate particles, with the particles in contact and the voids between them filled with gas, usually air.
Industry:Science
The artificial recombination of nucleic acid molecules in the test tube, their insertion into a virus, bacterial plasmid, or other vector system, and the subsequent incorporation of the chimeric molecules into a host organism in which they are capable of continued propagation. The construction of such molecules has also been termed gene manipulation because it usually involves the production of novel genetic combinations by biochemical means.
Industry:Science
The inward force required to keep a particle or an object moving in a circular path. It can be shown that a particle moving in a circular path has an acceleration toward the center of the circle along a radius.
Industry:Science
The disciplines of developmental biology (or embryology) and evolutionary biology have come together twice—once as <i>evolutionary embryology</i> in the late nineteenth century and again as <i>evolutionary developmental biology</i> (evo-devo, as it is typically known) in the late twentieth century. The current intersections of development and evolution are proving to be of paramount importance for creating a fully integrated theory of biology.
Industry:Science
