Effect of threshold

In Sciences, in particular in Physical, Biology and economy, the effect of threshold indicates the appearance of a phenomenon starting from a given value of a variable. The effect of threshold is distinguished from the continuous and smooth laws for which the phenomenon progressively appears of the increase (or the reduction) in the value of the variable.

Examples

  • a Diode is a electric Dipôle for purpose of threshold: the Electric current does not pass in-on this side some Tension; a contrario a resistance does not present an effect of threshold, because the current is proportional to the tension there.
  • the Syndrome of acute irradiation appears among men exposed to atomic radiation only starting from a amount of 0,5 Gy; a contrario, the surmortality by Cancer following an irradiation is not for purpose of threshold and grows continuement with the equivalent of effective amount.
  • In much of country, the social minimums are for purpose of threshold according to the number of hours worked or the income; a contrario, the Income tax is generally a continuous Fonction income (the sections of imposition change only the Dérivée paid amount, i.e. the marginal Tax rate).

See too

  • Break-even point
  • differential Seuil ~ relative differential Seuil
  • Seuil of detection ~ Limite of detection
  • Seuil of audibility
  • Seuil criticizes
  • Effect edge

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