Catálogo de publicaciones - revistas

<jats:title>Filtering through to what's important</jats:title> <jats:p> Membranes are widely used for gas and liquid separations. Historical analysis of a range of gas pair separations indicated that there was an upper bound on the trade-off between membrane permeability, which limits flow rates, and the selectivity, which limits the quality of the separation process. Park <jats:italic>et al.</jats:italic> review the advances that have been made in attempts to break past this upper bound. Some inspiration has come from biological membranes. The authors also highlight cases where the challenges lie in areas other than improved separation performance. </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="6343" page="eaab0530" related-article-type="in-this-issue" vol="356" xlink:href="10.1126/science.aab0530">eaab0530</jats:related-article> </jats:p>

<jats:p>When announcing his decision to withdraw the United States from the Paris Agreement, President Trump reminded the world that, “I was elected to represent the citizens of Pittsburgh, not Paris.” In doing so, he repeated a tired trope: that Pittsburgh is a rusty urban relic—a manufacturing city of steel that has fallen on hard times, held back by unfair global competition and onerous environmental regulation. But such a nostalgic version of Pittsburgh, and of many other communities across the country, is a myth. If the president truly wants to represent the interests of Americans, he would learn from the real histories of these regions and promote economic and environmental progress through research, education, and innovation.</jats:p>

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

<jats:p>Influential optics team clashes with astronomers over plans for 12-meter telescope.</jats:p>

<jats:p>After controversy, agency aims to build $1 billion “next-generation” fund.</jats:p>

<jats:p>3D structure arises in a dish as cell types interact to promote differentiation.</jats:p>

<jats:p>Entangled photons from Chinese satellite foreshadow space-based quantum network.</jats:p>

<jats:p>Encouraged by an FDA approval, companies design cancer drugs to work in any solid tumor.</jats:p>

<jats:p>Surging demand for modified immune cells causes some cancer trials to run short.</jats:p>

<jats:p>Two years after biomedical research on chimpanzees ended, why have so few beenretired to sanctuaries?</jats:p>