DRUG ABUSE |
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Drug abuse has a wide range of definitions, all of them relating to the use, misuse or overuse of a psychoactive drug or performance enhancing drug for a non-therapeutic or non-medical effect. Some of the most commonly abused drugs include alcohol, amphetamines, barbiturates, caffeine, cannabis, cocaine, methaqualone, nicotine, opium alkaloids, and minor tranquilizers. Use of these drugs may lead to criminal penalty in addition to physical, social, and psychological harm.[1] Other definitions of drug abuse fall into four main categories: Public health definitions, Mass communication and vernacular usage, Medical definitions, and Political and criminal justice definitions.
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ENERGY |
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Energy is the ability to do work. It may express itself in different forms; kinetic and potential energy and the ability to do mechanical work; thermal, chemical and electromagnetic energy; nuclear energy, and various other forms. Power is the time rated expenditure of energy.
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