Method of identifying gene dosage or expression by measurement of light absorption on an autoradiogram (film) of a band (or spot) representing a DNA, RNA, or protein sample; useful in detecting duplication mutations and heterozygous deletion mutations
Measurement of bone mineral density. This test is helpful for diagnosis of osteoporosis.
Densitometry is the quantitative measurement of ink density or the amount of ink per unit of area. It is used to determine tonal values, but not color hues. Densitometry can be used in photography and in reproduction for quality assurance purposes.
Densitometry is the measurement of the density or compactness of bone. It is also an indirect method of determining body composition; using this method, percentage of body fat is computed from bone density (the ratio of body weight to body volume).
Densitometry is the measurement of densities in light-sensitive materials caused by exposure to light and subsequent development. Density is the scientific expression of the darkness in an image. Since the eye adapts to ambient light, density is expressed as a relative value. It is the logarithm of the inverse of transparency.
A method for imaging density.
Densitometry is the quantitative measurement of optical density in light-sensitive materials, such as photographic film, due to exposure to light. Optical density is a result of the darkness of a developed picture and can be expressed absolutely as the number of dark spots (i.e., silver nitrate grains in developed films) in a given area, but usually it is a relative value, expressed in a scale. Density is also the logarithm of the inverse of transparency.