Catálogo de publicaciones - revistas

<jats:p> A <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/site/feature/data/books/brl6115.xhtml">listing of books received</jats:ext-link> at <jats:italic>Science</jats:italic> during the week ending 28 December 2012. </jats:p>

<jats:p>The contributors provide epidemiologic, economic, management, and political perspectives on the prevention and control of chronic diseases.</jats:p>

<jats:p>Ecosystem damage and population resettlements loom, owing to poor planning and impact assessments.</jats:p>

<jats:p> A protein that associates with the ribosome alleviates stalling and stimulates translation of proline-rich motifs. <jats:named-content content-type="related-content"> [Also see Reports by <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="82" related-article-type="in-this-issue" vol="339" xlink:href="10.1126/science.1228985"> Ude <jats:italic>et al.</jats:italic> </jats:related-article> and <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="85" related-article-type="in-this-issue" vol="339" xlink:href="10.1126/science.1229017"> Doerfel <jats:italic>et al.</jats:italic> </jats:related-article> ] </jats:named-content> </jats:p>

<jats:p>Unexpectedly large entropies of adsorbed molecules, predicted from their gas-phase values, lead to better models of the rates of surface reactions.</jats:p>

<jats:p>A better understanding is needed about how the online environment affects the communication of science information to the public.</jats:p>

<jats:p>A cloud of potassium atoms is tuned to negative temperatures via a quantum phase transition.</jats:p>

<jats:p>Metalloenzyme-like catalytic systems oxidize amines to imines under environmentally friendly conditions.</jats:p>

<jats:p>Greenhouse warming by molecular hydrogen may have contributed to warming the surface of the early Earth.</jats:p>

<jats:title>Varying Constant?</jats:title> <jats:p> Searches for time-varying fundamental constants provide a means to look beyond the standard model of particle physics. <jats:bold> Bagdonaite <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="46" related-article-type="in-this-issue" vol="339" xlink:href="10.1126/science.1224898">46</jats:related-article> , published online 13 December) set an improved limit on the possible timevariation of the proton-to-electron mass ratio by comparing the frequencies of methanol transitions observed in a galaxy at a look-back time of 7 billion years with those measured in the laboratory. The values agree within 10 <jats:sup>−7</jats:sup> , consistent with no variation over cosmic time. </jats:p>