- 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.
Correlation is the tendency of two or more systems that independently exhibit simple behavior to show complex and novel behavior together because of their interaction. In a wide sense, correlation is responsible for most of the complex behavior of matter observed at all scales. Examples include the forces that confine quarks inside a particle such as the proton, the interactions responsible for superconductivity, the energy landscapes that govern chemical reactions of molecules, and the principles that govern the shapes and functions of giant protein molecules in living systems.
Industry:Science
Desktop or, more often, portable electronic devices that are used to perform arithmetic, statistical, or other, more complex processing operations at the step-by-step direction of the user or by execution of a program (a stored sequence of processing operations) selected and initiated by the user. Models are offered with particular stored programs specialized to professional fields such as finance and science, and results are displayed in formats ranging from the still prevalent single line of alphanumeric characters to small viewing screens capable of graphical representations.
Industry:Science
Devices for determining the relative size or shape of objects. The function of gages is to determine whether parts are within or outside of the specified tolerances, which are expressed in a linear unit of measurement. Gages are the most widely used production tools for controlling linear dimensions during manufacture and for assuring interchangeability of finished parts. A gage may be an indicating type that measures the amount of deviation from a mean or basic dimension, or it may be a fixed type that simply accepts parts within tolerance and rejects parts outside tolerance.
Industry:Science
Digital still photography has experienced exponential growth in recent years. This is primarily due to a series of technical improvements and price reductions that have made the technology more appealing to the mass market and professionals alike. Parallel growth has been taking place in digital video, and the most recent cameras can be used to capture high-resolution still images or to make lower-resolution video recordings. In addition, the use of digital photography has been increasing in a host of other imaging applications such as surveillance, astronomy, and medical imaging.
Industry:Science
In absorbing, anisotropic objects the refractive index and the absorption vary with direction. As with double refraction (birefringence), there are two main directions of anisotropy, which are perpendicular to each other. This phenomenon is called dichroism and may be studied in the polarizing microscope with one polarizer. By rotating the microscope stage the object is brought in different directions to the vibration plane of the polarized light, and the change of light absorption is observed. Study of dichroism allows conclusions as to the submicroscopic fine structure of cells.
Industry:Science
Atmospheric convection can occur whenever an air parcel or air layer is heated so that it expands, becomes less dense than its surroundings, and begins to move upward by buoyancy. The large-scale (synoptic) conditions determine the buoyancy structure and stability of the atmosphere, the distribution of moisture, and overall motion patterns of the air, and thereby set the preconditions for the type and intensity of convective motion. Initiation of actual convection occurs on the local scale by small-scale processes, most commonly by local solar heating or terrain-induced lifting of air.
Industry:Science
Food, water, shelter, fuel, transportation, recreation, scenic amenities, waste recycling, biodiversity, and climate stabilization are just a few examples of the goods and services that are supported by ecosystems (that is, functional systems that include the organisms of natural communities together with their environment). Human life would be impossible without nature's services. However, at the scale of individual ecosystems, people make decisions every day that affect the health and sustainability of ecosystems and that reflect the people's values for ecosystems and their services.
Industry:Science
Barcodes are found universally on consumer products. They are composed of unique strings of patterns that identify and classify the product. It has become clear that analogous principles can be applied to distinguish species. Each species is characterized by unique strings of nucleotides in its genome that can be used for identification and classification. These nucleotide strings can be determined easily through standardized deoxyribonucleic acid (DNA) sequencing techniques. DNA barcoding therefore has been proposed as a universal tool for studying the taxonomic diversity of organisms.
Industry:Science
Bioethics is a broad term that encompasses the environmental, ethical, legal, and social implications of agriculture, life sciences, and medicine. The rapidity of progress in genetics and genome mapping, spurred by the Human Genome Project, is reforming the whole process of science and providing new tools for use in technology, but also raising many questions for society. Bioethical issues arising from recent applications of science include genetic engineering of microorganisms, plants, and animals; in vitro fertilization; cloning; xenotransplantation; gene therapy; and genetic testing.
Industry:Science
Any member of the grass family (Gramineae) which produces edible grains usable as food by humans and livestock. Common cereals are rice, wheat, barley, oats, maize (corn), sorghum, rye, and certain millets. Triticale is cereal derived from crossing wheat and rye and then doubling the number of chromosomes in the hybrid. Occasionally, grains from other grasses (for example, teff) are used for food. Cereals are summer or winter annuals. Corn, rice, and wheat are the most important cereals. Today, as in ancient times, cereals provide more food for human consumption than any other crops.
Industry:Science
