This study determined the degradation of nine bleaching agents with different concentrations after two hours in vivo following the manufacturers' recommendations. The nine carbamide peroxide products are 10%, 15% and 20% Opalescence, 10%, 15% and 22% Rembrandt and 10%, 16% and 22% Nite White Excel 2. Each subject wore the tray with the bleaching agent for two hours on three separate occasions. ...

In the Microbiology Lab, we tested five different mouthwashes, using water as a control, to see which mouthwash was the most effective at killing bacteria. The two types of bacteria used were Staphylococcus epidermidis and Bacillus subtilis. The five mouthwashes we tested were Scope, Rembrandt, Therasol, Cepacol, and Listerine. In testing the mouthwashes, we mixed bacteria and agar together and...

For centuries painters have predominantly painted portraits with the model’s left-cheek facing the viewer. This has been even more prevalent with females (:68%) than males (:56%). Numerous portraits painted by Rembrandt typify this unexplained phenomenon. In a preliminary experiment, subjects judged 24 emotional and social character traits in 20 portraits by Rembrandt. A factor analysis reveale...

For there will be hard data and they will be hard to understand For the trivial will trap you and the important escape you For the Committee will be unable to resolve the question For there will be the arts and some will call them soft data whereas in fact they are the hard data by which our lives are lived A Valediction " T he " ugly and plebeian face by which he was ill-favored, was accompani...