منابع مشابه
Glossary of Methodologic Terms
Before-After Trial: Investigation of therapeutic alternatives in which individuals of 1 period and under a single treatment are compared with individuals at a subsequent time, treated in a different fashion. If the disorder is not fatal and the "before" treatment is not curative, the same individuals may be studied in the before and after periods, strengthening the design through increased grou...
متن کاملA Glossary of Animation Terms
Computer images have three or four color channels, which are grayscale images representing the intensity of colored ink or light at particular places on the screen. These are RGB (Red-Green-Blue) for work that is intended to be shown by light emitting media such as monitors or projectors, and CMYK (Cyan-Magenta-Yellow-Black) for light absorbing media such as printed paper. An alpha channel is o...
متن کاملA Glossary of Main Terms
Acquisitions approach An approach to CPIs in which consumption is identified with the consumption goods and services acquired by a household in some period (as distinct from those wholly or partially used up for purposes of consumption). Depending on the intended scope of the CPI, acquisitions may include not only goods and services purchased, but also those acquired by own-account production o...
متن کاملGlossary of Printing Terms
CMYK Printers use CMYK – representing the colors, cyan, magenta, yellow and black inks, when printing 4-color process work. These are called subtractive colors, as combining them all gives the color black. Subtracting one or more of these colors will yield any other color. When combined in various percentages, these four inks will create an entire spectrum of colors, including those used in col...
متن کاملGlossary of Epidemiological Terms
ACCURACY and PRECISION. Accuracy is the extent to which a measurement reflects the true value. It is the tendency of test measurement to center around the true value. "Precise" means sharply defined or measured. Data can be very precise, but inaccurate. It would be precise but inaccurate to say that a meter equals 29.3748 inches. It would actually be more accurate to say that a meter equals a l...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1895
ISSN: 0036-8733
DOI: 10.1038/scientificamerican11231895-16585asupp