Photoplethysmography (PPG) is a non-invasive, optical technique that monitors and detects changes in blood volume in peripheral blood vessels at various locations - including the earlobes, fingers, ...

Preserving a scratch-free, high gloss finish over a longer vehicle life has challenged the auto industry for decades. One problem is acid etch, degradation of the surface by acid rain in the ...

PPG PPG0.82%increase; green up pointing triangle cut its full-year earnings outlook as global demand has softened. The Pittsburgh paint and coatings company now expects full-year earnings of $7.60 to ...