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Optical techniques are methods that use light to probe or control matter. One prominent example is optical spectroscopy, which includes such methods as pump–probe spectroscopy, Raman spectroscopy and ...

Characterization and analytical techniques are methods used to identify, isolate or quantify chemicals or materials, or to characterize their physical properties. They include microscopy, light or ...

EFT tapping is based on meridian points, similar to acupuncture. It aims to restore the body’s energy balance and relieve negative emotions. EFT has shown promise for post-traumatic stress disorder ...