WASHINGTON, Dec. 31 -- The Proceedings of the National Academy of Sciences, a peer-reviewed scientific journal, published research articles on the following topics in its Vol. 118, No. 52 edition:

Physical Sciences:

* Elastic forces drive nonequilibrium pattern formation in a model of nanocrystal ion exchange

* Accounting for spatial sampling patterns in Bayesian phylogeography

* Photodissociation of dicarbon: How nature breaks an unusual mult . . .

Click here for more information about our products