This radiographic density often has the shape of a scimitar, a type of curved sword.

For this reason, false negatives are twice as likely to occur in premenopausal mammograms (Prate).

This is partly due to dense tissues obscuring the cancer and the fact that the appearance of cancer on mammograms has a large overlap with the appearance of normal tissues.

Radioimmunoassay (RIA) is a very sensitive in vitro assay technique used to measure concentrations of antigens (for example, hormone levels in the blood) by use of antibodies.

The term true mass is synonymous with the term mass, but is used in astronomy to differentiate the measured mass of a planet from the lower limit of mass usually obtained from radial velocity techniques.

As scientific computing using vector processors became more popular, the need for lower cost systems that might be used at the departmental level instead of the corporate level created an opportunity for new computer vendors to enter the market.

The Radial Velocity Spectrometer (RVS) is used to determine the velocity of celestial objects along the line of sight by acquiring high resolution spectra in the spectral band 847 874 nm (field lines of calcium ion) for objects up to magnitude 17.