Opioids are drugs that act on the nervous system to relieve pain. Continued use and abuse can lead to physical dependence and withdrawal symptoms. They come in tablets, capsules or liquid. Some of the well-known brand and street names:
The alternate logo of the AHL. The American Hockey League (AHL) is a 30-team professional ice hockey league based in the United States and Canada that serves as the primary developmental league for the National Hockey League (NHL).
Ethanol precipitation is a commonly used technique for concentrating and de-salting nucleic acids (DNA or RNA) preparations in aqueous solution. The basic procedure is that salt and ethanol are added to the aqueous solution, which forces the precipitation of nucleic acid nucleic acids out of solution.