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Modern construction of guitars is an example of using rarefaction in manufacturing. By forcing the reduction of density (loss of oils and other impurities) in the cellular structure of the soundboard, a rarefied guitar top produces a tonal decompression affecting the sound of the instrument, mimicking aged wood.
Ratification is done by a resolution passed by the State Legislatures. There is no specific time limit for the ratification of an amending Bill by the State Legislatures. However, the resolutions ratifying the proposed amendment must be passed before the amending Bill is presented to the President for his assent. [9]
State ratifying conventions are one of the two methods established by Article V of the United States Constitution for ratifying proposed constitutional amendments. The only amendment that has been ratified through this method thus far is the 21st Amendment in 1933.
After being officially proposed, either by Congress or a national convention of the states, a constitutional amendment must then be ratified by three-fourths (38 out of 50) of the states. Congress is authorized to choose whether a proposed amendment is sent to the state legislatures or to state ratifying conventions for ratification. Amendments ...
The proposed amendment was adopted on December 5, 1933. It is the only amendment to have been ratified by state ratifying conventions, specifically selected for the purpose. [6] The Twenty-first Amendment ending national prohibition also became effective on December 5, 1933.
Second, there are two procedures for ratifying the proposed amendment, which requires three-fourths of the states' (presently 38 of 50) approval: (a) consent of the state legislatures, or (b) consent of state ratifying conventions. The ratification method is chosen by Congress for each amendment. [126]
The technique of rarefaction was developed in 1968 by Howard Sanders in a biodiversity assay of marine benthic ecosystems, as he sought a model for diversity that would allow him to compare species richness data among sets with different sample sizes; he developed rarefaction curves as a method to compare the shape of a curve rather than absolute numbers of species.
However, in February 1870, Georgia, Iowa, Nebraska, and Texas ratified the amendment, bringing the total ratifying states to twenty-nine—one more than the required twenty-eight ratifications from the thirty-seven states, and forestalling any court challenge to New York's resolution to withdraw its consent. [27]