Optical Zitterbewegung effect in arrays of helical waveguides

Owing to its Hair Styling Tools topological properties and band collapse, Floquet helical photonic lattices have gained increasing attention as a purely classical setting to realize the optical analogues of a wide variety of quantum phenomena.We demonstrate both theoretically and numerically that light propagation in an appropriately designed helic

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Comparative evaluation of postoperative pain after single visit endodontic treatment using ProTaper Universal and ProTaper Next rotary file systems: A randomized clinical trial

Introduction: Root canal preparation may cause inadvertent apical extrusion of debris causing postoperative pain.This debris varies with the instrumentation technique and design characteristics.One of the major revolutions in the design of the instruments is the introduction of files with an offset center of mass or/and rotation, which causes asymm

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