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.
Non-narcotic analgesics include acetaminophen (Tylenol), which although widely available should only be used long-term if carefully monitored, as serious side effects include liver damage and death. Non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (Motrin, Advil) are also non-narcotic pain relievers.