Previous submission here: <a href="http://news.ycombinator.com/item?id=2899191" rel="nofollow">http://news.ycombinator.com/item?id=2899191</a><p>2 days old, 72 points, 12 comments, actual scholarly article is behind a paywall that many universities can get through here: <a href="http://pubs.rsc.org/en/Content/ArticleLanding/2011/CC/c0cc05785a" rel="nofollow">http://pubs.rsc.org/en/Content/ArticleLanding/2011/CC/c0cc05...</a>