augmentation

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augmentation

The difference at a particular time between the topocentric and geocentric semidiameter of a celestial body. See also diurnal libration.

augmentation

[‚ȯg·mən′tā·shən]
(astronomy)
The apparent increase in the semidiameter of a celestial body, as observed from the earth, as the body's altitude (angular distance above the horizon) increases, due to the reduced distance from the observer; used principally in reference to the moon.
References in periodicals archive ?
As a result, the majority of growth in the Asia-Pacific spinal implant markets is due to the proliferation of newer technologies, including artificial discs, percutaneous vertebral augmentation (PVA) and dynamic stabilization systems.
NASDAQ: VITA), an orthobiologics and biosurgery company, notes that on May 5, 2011, Noridian([R])Administrative Services, LLC (Noridian) published a Part B Future Local Coverage Determination (LCD) covering percutaneous vertebroplasty and percutaneous vertebral augmentation when medical record documentation supports that the procedure is conducted in accordance with the clinical and procedural criteria established in the literature produced in recent years.
Now, these spine fractures can be treated with innovative procedures such as percutaneous vertebroplasty or percutaneous vertebral augmentation which stabilize fractures of the spine and provide significant pain relief.

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