Two new metal−organic framework (MOF) structures, IRMOF-3b and -3c, were prepared by ring-opening reaction of 1,3-propanesultone and 2-methylaziridine with an amine functionalized MOF, IRMOF-3. The ...

The Official UK Top 40 chart is compiled by the Official Charts Company, based on official sales of sales of downloads, CD, vinyl, audio streams and video streams. The Top 40 is broadcast on BBC ...

Stonehenge and Avebury, in Wiltshire, are among the most famous groups of megaliths in the world. The two sanctuaries consist of circles of menhirs arranged in a pattern whose astronomical ...