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.
Morphine is in a group of drugs called narcotic pain relievers. Naltrexone is a special narcotic drug that blocks the effects of other narcotic medicines and alcohol. The combination of morphine and naltrexone is used to treat moderate to severe pain when around-the-clock pain relief is needed for a long time period.