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Are there natural melodies?

Many musical cultures choose scales that establish simple frequency ratios (2:1, 3:2, 4:3) between notes. It is commonly believed that this choice is solely explained by the intention to maximize the ...
Nature

Summary of: Access to dental services in Scotland: an analysis of dentist-population ratios

Describes inequalities in the availability of NHS dental practitioners between Scottish Health Boards. Demonstrates how simple dentist-population ratios may overestimate the availability of NHS dental ...