A simple example of a polarized transverse wave is vibrations traveling along a taut string (see image); for example, in a musical instrument like a guitar string. Depending on how the string is plucked, the vibrations can be in a vertical direction, horizontal direction, or at any angle perpendicular to the string.
Commission on Narcotic Drugs considers future of drug control. 14 March 2008 - The 51 st session of the annual Commission on Narcotic Drugs (CND) wrapped up today.
For these reasons, narcotic abuse is one of the most common forms of drug abuse in the U.S. Terms like opioid abuse, drug abuse, drug dependence, and drug addiction are often used interchangeably, but experts define them as follows: