Catálogo de publicaciones - revistas

<jats:p> Beltrán-Sánchez <jats:italic>et al</jats:italic> . based their comment on misleading calculations of the maximum survival age. With realistic numbers of people attaining age 105 and the estimated plateau, the Jeanne Calment record is indeed plausible. </jats:p>

<jats:title>A nature-friendly matrix</jats:title> <jats:p>As the human population has grown, we have taken and modified more and more land, leaving less and less for nonhuman species. This is clearly unsustainable, and the amount of land we protect for nature needs to be increased and preserved. However, this still leaves vast regions of the world unprotected and modified. Such landscapes do not have to be a lost cause. Kremen and Merenlender review how biodiversity-based techniques can be used to manage most human-modified lands as “working landscapes.” These can provide for human needs and maintain biodiversity not just for ecosystem services but also for maintenance and persistence of nonhuman species.</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" related-article-type="in-this-issue" xlink:href="10.1126/science.aau6020">eaau6020</jats:related-article> </jats:p>

<jats:title>The stages of a quantum internet</jats:title> <jats:p> As indispensable as the internet has become in our daily lives, it still has many shortcomings, not least of which is that communication can be intercepted and information stolen. If, however, the internet attained the capability of transmitting quantum information—qubits—many of these security concerns would be addressed. Wehner <jats:italic>et al.</jats:italic> review what it will take to achieve this so-called quantum internet and propose stages of development that each correspond to increasingly powerful applications. Although a full-blown quantum internet, with functional quantum computers as nodes connected through quantum communication channels, is still some ways away, the first long-range quantum networks are already being planned. </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" related-article-type="in-this-issue" xlink:href="10.1126/science.aam9288">eaam9288</jats:related-article> </jats:p>

<jats:title>Structures of voltage-gated sodium channels</jats:title> <jats:p> In “excitable” cells, like neurons and muscle cells, a difference in electrical potential is used to transmit signals across the cell membrane. This difference is regulated by opening or closing ion channels in the cell membrane. For example, mutations in human voltage-gated sodium (Na <jats:sub>v</jats:sub> ) channels are associated with disorders such as chronic pain, epilepsy, and cardiac arrhythmia. Pan <jats:italic>et al.</jats:italic> report the high-resolution structure of a human Na <jats:sub>v</jats:sub> channel, and Shen <jats:italic>et al.</jats:italic> report the structures of an insect Na <jats:sub>v</jats:sub> channel bound to the toxins that cause pufferfish and shellfish poisoning in humans. Together, the structures give insight into the molecular basis of sodium ion permeation and provide a path toward structure-based drug discovery. </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" related-article-type="in-this-issue" xlink:href="10.1126/science.aau2486">eaau2486</jats:related-article> , p. <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.aau2596">eaau2596</jats:related-article> </jats:p>

<jats:title>Assessing gender differences</jats:title> <jats:p>What contributes to gender-associated differences in preferences such as the willingness to take risks, patience, altruism, positive and negative reciprocity, and trust? Falk and Hermle studied 80,000 individuals in 76 countries who participated in a Global Preference Survey and compared the data with country-level variables such as gross domestic product and indices of gender inequality. They observed that the more that women have equal opportunities, the more they differ from men in their preferences.</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" related-article-type="in-this-issue" xlink:href="10.1126/science.aas9899">eaas9899</jats:related-article> </jats:p>

<jats:p>The current outbreak of Ebola virus in the Democratic Republic of the Congo is a reminder that dangerous diseases exist in many corners of the world and that they can cause substantial human suffering and financial devastation locally and internationally. In response, institutions and nations are constructing maximum biocontainment laboratories (MCLs) to address these threats. MCLs operate at the highest level of biological containment to diagnose, perform research on, and validate cures for life-threatening diseases like Ebola. There are more than 50 MCLs that are operational, under construction, or in advanced planning around the world. The global proliferation of these facilities raises questions about how to ensure their safe and secure operations while enhancing their contributions to science and global health. One solution is to establish an MCL network that enables the sharing of best practices, collaboration, transparency, and exchange of specimens and technology.</jats:p>

<jats:p>A roundup of weekly science policy and related news.</jats:p>

<jats:p>Candidates, all Democrats, learned in the primaries that a science background by itself does not sway voters.</jats:p>

<jats:p>Country's likely next president promises R&amp;D investment but favors development over climate and biodiversity.</jats:p>