Catálogo de publicaciones - revistas

<jats:title>New Horizons unveils the Pluto system</jats:title> <jats:p> In July 2015, the New Horizons spacecraft flew through the Pluto system at high speed, humanity's first close look at this enigmatic system on the outskirts of our solar system. In a series of papers, the New Horizons team present their analysis of the encounter data downloaded so far: Moore <jats:italic>et al.</jats:italic> present the complex surface features and geology of Pluto and its large moon Charon, including evidence of tectonics, glacial flow, and possible cryovolcanoes. Grundy <jats:italic>et al.</jats:italic> analyzed the colors and chemical compositions of their surfaces, with ices of H <jats:sub>2</jats:sub> O, CH <jats:sub>4</jats:sub> , CO, N <jats:sub>2</jats:sub> , and NH <jats:sub>3</jats:sub> and a reddish material which may be tholins. Gladstone <jats:italic>et al.</jats:italic> investigated the atmosphere of Pluto, which is colder and more compact than expected and hosts numerous extensive layers of haze. Weaver <jats:italic>et al.</jats:italic> examined the small moons Styx, Nix, Kerberos, and Hydra, which are irregularly shaped, fast-rotating, and have bright surfaces. Bagenal <jats:italic>et al.</jats:italic> report how Pluto modifies its space environment, including interactions with the solar wind and a lack of dust in the system. Together, these findings massively increase our understanding of the bodies in the outer solar system. They will underpin the analysis of New Horizons data, which will continue for years to come. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue pp. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6279" page="1284" related-article-type="in-this-issue" vol="351" xlink:href="10.1126/science.aad7055">1284</jats:related-article> , <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" related-article-type="in-this-issue" xlink:href="10.1126/science.aad9189">10.1126/science.aad9189</jats:related-article> , <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" related-article-type="in-this-issue" xlink:href="10.1126/science.aad8866">10.1126/science.aad8866</jats:related-article> , <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" related-article-type="in-this-issue" xlink:href="10.1126/science.aae0030">10.1126/science.aae0030</jats:related-article> , &amp; <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" related-article-type="in-this-issue" xlink:href="10.1126/science.aad9045">10.1126/science.aad9045</jats:related-article> </jats:p>

<jats:title>When enough isn't enough</jats:title> <jats:p> Overeating and obesity are rapidly becoming worldwide problems. Normally, mice do not overeat—they balance their caloric intake with their caloric needs. Lagerlöf <jats:italic>et al.</jats:italic> deleted an enzyme called O-GlcNAc transferase (OGT) from a subset of neurons in the mouse hypothalamus (see the Perspective by Schwartz). After the loss of OGT, the animals began to overeat and rapidly gained weight. The animals ate more at meal times, rather than eating more often. Thus, OGT seems to regulate satiety and helps to couple caloric intake to caloric need. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6279" page="1293" related-article-type="in-this-issue" vol="351" xlink:href="10.1126/science.aad5494">1293</jats:related-article> ; see also p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6279" page="1268" related-article-type="in-this-issue" vol="351" xlink:href="10.1126/science.aaf5216">1268</jats:related-article> </jats:p>

<jats:title>Mom's bugs shape of spring immunity</jats:title> <jats:p> In utero, babies are relatively microbe-free but are quickly colonized at birth. These early microbial residents help to shape our immune systems. Gomez de Agüero <jats:italic>et al.</jats:italic> wondered whether the maternal microbiome also affects the of springs' immune system during gestation. To do this, they transiently colonized otherwise microbe-free pregnant mice. Compared to those born to microbe-free moms, pups born to colonized moms had increased numbers of certain innate immune cells and different patterns of gene expression in their guts. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6279" page="1296" related-article-type="in-this-issue" vol="351" xlink:href="10.1126/science.aad2571">1296</jats:related-article> </jats:p>

<jats:title>Peeking into a diamond pressure cell</jats:title> <jats:p> A defining characteristic of a superconductor is that it expels an external magnetic field. Demonstrating this effect can be tricky when the sample is under enormous pressures in a diamond anvil cell. Troyan <jats:italic>et al.</jats:italic> placed a tinfoil sensor inside a sample of H <jats:sub>2</jats:sub> S under pressure. They then bombarded it with synchrotron radiation and watched how the scattering of photons of tin nuclei changed over time. When H <jats:sub>2</jats:sub> S was in the normal state, an external magnetic field reached the sensor through the sample, causing the nuclear levels of tin to split. In the superconducting state, however, no splitting was observed because H <jats:sub>2</jats:sub> S expelled the field before it could reach the sensor. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6279" page="1303" related-article-type="in-this-issue" vol="351" xlink:href="10.1126/science.aac8176">1303</jats:related-article> </jats:p>