# effective+principle

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**Effective Cycling**— is a trademarked cycling educational program designed by John Forester, which was the national education program of the League of American Wheelmen for a number of years. The Effective Cycling program consists of text books and training courses… …2

**Effective microorganism**— Effective Microorganisms™, also called EM Technology™, is a brand name for a series of products utilizing a base culture called EM•1® Microbial Inoculant. EM Technology™ is an as yet scientifically unconfirmed method of improving soil quality and …3

**Effective demand**— In economics, effective demand in a market is the demand for a product or service which occurs when purchasers are constrained in a different market. It contrasts with notional demand, which is the demand that occurs when purchasers are not… …4

**Effective action**— In quantum field theory, the effective action is a modified expression for the action, which takes into account quantum mechanical corrections, in the following sense: In classical mechanics, the equations of motion can be derived from the action …5

**Effective mass**— In solid state physics, a particle s effective mass is the mass it seems to carry in the semiclassical model of transport in a crystal. It can be shown that, under most conditions, electrons and holes in a crystal respond to electric and magnetic …6

**Principle of opportunity**— The principle of opportunity is a principle in Dutch law, which says that a crime will be punished only if its prosecution is considered opportune. This means that public prosecutors have the arbitrary decision power to cancel the prosecution of… …7

**Effective results in number theory**— For historical reasons and in order to have application to the solution of Diophantine equations, results in number theory have been scrutinised more than in other branches of mathematics to see if their content is effectively computable. Where… …8

**Peter Principle**— For the BBC sitcom, see The Peter Principle (TV series). The Peter Principle states that in a hierarchy every employee tends to rise to his level of incompetence , meaning that employees tend to be promoted until they reach a position at which… …9

**Holographic principle**— Holographic Universe redirects here. For the album, see Holographic Universe (album). For the book by Michael Talbot, see The Holographic Universe. String theory …10

**Cooperative principle**— For the principles governing the functioning of cooperatives, see Rochdale Principles. In social science generally and linguistics specifically, the cooperative principle describes how people interact with one another. As phrased by Paul Grice,… …