Catálogo de publicaciones - revistas

<jats:p>A federally mandated system of test-based accountability for U.S. education can be made even better.</jats:p>

<jats:p>No Child Left Behind is a poorly designed program, with serious side effects and little evidence of benefit, in need of fundamental changes.</jats:p>

<jats:p>A lentivirus was used as a vector in hemato-poietic stem cells to treat a neurodegenerative disease in a clinical gene therapy trial.</jats:p>

<jats:p>Efforts to elucidate the effect of climate change on biodiversity with detailed data sets and refined models reach novel conclusions.</jats:p>

<jats:p>Animals pollinated specialized seed plants even before flowering plants evolved.</jats:p>

<jats:p>Two large computational studies describe how theory can better account for the way in which molecules scatter from or react with metal surfaces.</jats:p>

<jats:p>Peatlands can buffer the impact of external perturbations, but can also rapidly shift to a new ecosystem type, with large gains or losses of stored carbon.</jats:p>

<jats:title>Missing Mass Explained?</jats:title> <jats:p> The motion and distribution of galaxies and clusters of galaxies within the universe suggest that there is far more matter than can be seen directly through telescopes. Alternatively, perhaps our understanding of gravity is flawed, leading to a mismatch between the gravitational field inferred from the observed mass distribution in the universe and the observed gravitational field. <jats:bold>Ferreira and Starkman</jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="812" related-article-type="in-this-issue" vol="326" xlink:href="10.1126/science.1172245">812</jats:related-article> ) review the viability of modifying theories of gravity to solve the problem of missing mass. It emerges that theories of modified gravity remain viable but have become more complex, involving gravitating invisible elements. However, what you see is still not what you get. </jats:p>

<jats:p>When water striders can disperse among groups, females select for reduced male aggression.</jats:p>

<jats:p>DNA from historical specimens reveals the mutation causing the hemophilia that afflicted the royal families of Europe.</jats:p>