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  2. Prism fusion range - Wikipedia

    en.wikipedia.org/wiki/Prism_fusion_range

    The prism fusion range ( PFR) or fusional vergence amplitude is a clinical eye test performed by orthoptists, optometrists, and ophthalmologists to assess motor fusion, specifically the extent to which a patient can maintain binocular single vision ( BSV) in the presence of increasing vergence demands. Motor fusion is largely accounted to ...

  3. Valve stem - Wikipedia

    en.wikipedia.org/wiki/Valve_stem

    Valve stem. Replacing a valve stem. A valve stem is a self-contained valve that opens to admit gas to a chamber (such as air to inflate a tire ), [ 1] and is then automatically closed and kept sealed by the pressure in the chamber, or a spring, [ 2][ 3] or both, to prevent the gas from escaping. [ 4]

  4. Postperfusion syndrome - Wikipedia

    en.wikipedia.org/wiki/Postperfusion_syndrome

    Postperfusion syndrome, also known as " pumphead ", is a constellation of neurocognitive impairments attributed to cardiopulmonary bypass (CPB) during cardiac surgery. Symptoms of postperfusion syndrome are subtle and include defects associated with attention, concentration, short-term memory, fine motor function, and speed of mental and motor ...

  5. Prism cover test - Wikipedia

    en.wikipedia.org/wiki/Prism_Cover_Test

    The prism cover test ( PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. [1] It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]

  6. Valve - Wikipedia

    en.wikipedia.org/wiki/Valve

    A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from ...

  7. It's like Vegas' Sphere — kinda. 7 things to know about L.A ...

    www.aol.com/news/vegas-sphere-kinda-7-things...

    3. Cosm insists this is not a theater "We're allergic to the term theater," Poolman says. Cosm's creators want the spaces to feel social. That's why they also sell a low-priced general admission ...

  8. Transcatheter aortic valve replacement - Wikipedia

    en.wikipedia.org/wiki/Transcatheter_aortic_valve...

    Successful rate: 92%. [ 1] Transcatheter aortic valve implantation ( TAVI) is the implantation of the aortic valve of the heart through the blood vessels without actual removal of the native valve (as opposed to the aortic valve replacement by open heart surgery, surgical aortic valve replacement, AVR). The first TAVI was performed on 16 April ...

  9. Newcomen atmospheric engine - Wikipedia

    en.wikipedia.org/wiki/Newcomen_atmospheric_engine

    The atmospheric engine was invented by Thomas Newcomen in 1712, and is often referred to as the Newcomen fire engine (see below) or simply as a Newcomen engine. The engine was operated by condensing steam drawn into the cylinder, thereby creating a partial vacuum which allowed the atmospheric pressure to push the piston into the cylinder.