Notes
SPARKS AND ASHES - This is a column of no more than 10 pages in length aimed at generating debate among our readers. How many of us have an idea that is not yet ready for publication as a fully-fledged scientific article per se, but that we would relish the opportunity to present and discuss? The Review aims to provide such a forum. Once sown, who knows who will bring the seeds of an idea to fruition? In any case, we welcome your contribution on any topic likely to spark discussion. As usual we remind you that papers relating to contemporary political events will not be considered for publication. Please send your articles of no more than 10,000 characters to the following address: Mino Vianello, Via Brennero 36, 00141 Roma, Italy.