At times a woman can be better than a man at moving between emotional and practical solutions.

Even the distinction between problems and solutions is not always clear.

Typically, there does not exist a unique optimal solution for such problems and it is necessary to use decision maker's preferences to differentiate between solutions.

Hence there must be a distinction between solutions for personal improvement and any other purpose.

A user is asked to respond to comparisons between feasible solutions or to choose directions of change desired in each iteration.

Another "classic" experiment that shows one difference between solutions and mixtures is to shine light through them.

This often involves finding a subtle correspondence between solutions of two seemingly quite different equations.

Moment by moment, it has been difficult for even Stern to distinguish between perception and reality, problems and solutions.

But there was nothing ideological about the campaign, no clear choice between leftist and rightist solutions.

The easiest way to find the best model is through healthy competition between different national systems and solutions.