The causality between the Paleoproterozic Great Oxidation Event (GOE) and a global “snowball Earth” glaciation has remained unresolved due to an inability to determine their relative timing. We ...

Edited by Mark Estelle, University of California at San Diego, La Jolla, CA, and approved April 27, 2011 (received for review March 3, 2011) ...

In situ *OH species can be formed on low-valence Cu active sites when water and air are used as the solvent and oxidant, respectively. Compelling experimental evidence is presented here on the ...

Many of the world’s crops are pollinated by insects, and bees are often assumed to be the most important pollinators. To our knowledge, our study is the first quantitative evaluation of the relative ...

**MHHW. ***50th percentile value of the IPCC AR6 SSP3-7.0 local sea-level projections for each estuary in this study. Total change calculations are made relative to the starting 2023 value in each ...

This contribution is part of the special series of Inaugural Articles by members of the National Academy of Sciences elected in 2016.

Indeterminate growth of shoots continually produces new tissues from the dividing apical meristem. In contrast, determinate growth of the floral meristem produces flowers of a particular size and form ...

Air quality estimates are the primary source of information regarding exposure to pollution, and their quality is important for public health, policy, and society. These estimates rely on the coverage ...

Antibody-dependent cell-mediated cytotoxicity, a key effector function for the clinical efficacy of monoclonal antibodies, is mediated primarily through a set of closely related Fcγ receptors with ...

The fragmented and inefficient healthcare system in the United States leads to many preventable deaths and unnecessary costs every year. Universal healthcare could have alleviated the mortality caused ...

Edited by Alexander M. Klibanov, Massachusetts Institute of Technology, Cambridge, MA, and approved by the Editorial Board September 26, 2008 ...

Edited by Eran Pichersky, University of Michigan, Ann Arbor, MI, and accepted by the Editorial Board October 4, 2011 (received for review May 25, 2011) ...