February 10, 2017 (table of contents) (table of contents link without UNC proxy)

News. Scientific Community. Grad students, postdocs with U.S. visas face uncertainty, p557

News. Conservation. World's most endangered marine mammal down to 30. Acoustic survey speeds last-ditch plans to round up the vaquita - for its own good, 558

News. Astrophysics. Debate heats up over black holes as dark matter. Observations of compact little galaxies challenge fanciful idea, p560

A Matter of Fact, by David Malakoff, p563 - Introduction to special section on the path of evidence to policy

*Rules of evidence. Are evidence standards used by chemical regulators excluding solid science? Warren Cornwall, p564

*No easy answers. What does it mean to ask whether a prekindergarten math program "works"? Jeffrey Mervis, p568

How to be heard, Erik Stokstad, p572

Data for all? New U.S. panel examines obstacles to using administrative data for policy. Jeffrey Mervis, p573

Machine learning for quantum physics. An artificial neural network can discover the ground state of a quantum many-body system. Michael R. Hush, p580

*Measurement error and the replication crisis. The assumption that measurement error always reduces effect sizes is false, p584