Why is the smell of Arizona's monsoon so distinctive? It releases the aromas of the desert, one ecologist says.

The article indicates that the sudden appearance (or disappearance?) of polymorphs can derail clinical programmes. Such an ...

Accordingly, we synthesized new examples of 1,3-thiazolium-5-thiolate mesoionic compounds, especially those with large AM1-TDHF calculated values for β (0). Figure 1 shows two groups, R A and R D, ...