How can one compute the dimension of a projective algebraic subset, given by a system of equations? There are different definitions, and their equivalence is part of the classical dimension theory in algebraic geometry. The game is then the following: to make some definition of dimension effective enough to get an algorithm. A first method consists to think algebraically and to use the Hilbert ...

Globalization and technology transfer have led to the diffusion of risk communications to users from cultures that were not initially viewed as the target users. This study examined industry and trade workers' overall impressions of symbols used to convey varying degrees of hazardousness. Six symbols, including symbols from the American National Standards Institute (ANSI) Z535 Standard (ANSI, 1...