Catálogo de publicaciones - revistas

<jats:title>Driven to collapse</jats:title> <jats:p> Volcanic eruptions occur frequently, but only rarely are they large enough to cause the top of the mountain to collapse and form a caldera. Gudmundsson <jats:italic>et al.</jats:italic> used a variety of geophysical tools to monitor the caldera formation that accompanied the 2014 Bárdarbunga volcanic eruption in Iceland. The volcanic edifice became unstable as magma from beneath Bárdarbunga spilled out into the nearby Holuhraun lava field. The timing of the gradual collapse revealed that it is the eruption that drives caldera formation and not the other way around. </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.aaf8988">262</jats:related-article> </jats:p>

<jats:title>How the ER manages mitochondrial division</jats:title> <jats:p> It has been unclear how mitochondrial DNA (mtDNA) replication is spatially controlled in mammalian cells and how the mitochondrial nucleoid—the protein-DNA structure that is the unit of mtDNA inheritance—is distributed at the cellular level. Lewis <jats:italic>et al.</jats:italic> now show that homeostatic mtDNA synthesis in mitochondrial nucleoids in mammalian cells is spatially linked to a small subset of endoplasmic reticulum (ER)-mitochondria contact sites that are specifically destined for mitochondrial division. Successive events of mtDNA replication, mitochondrial division, and mitochondrial motility function together to ensure the accurate distribution of mtDNA in cells. Furthermore, ER-mitochondria contacts coordinate the licensing of mtDNA replication with division to distribute newly replicated nucleoids to daughter mitochondria. </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.aaf5549">261</jats:related-article> </jats:p>

<jats:p>A natural hazard need not become a human disaster if society learns and applies lessons in preparation and resilience. Earthquake history speaks well to this—engineered structures need to stand up to strong shaking. Chile learned this lesson before its 2010 earthquake of magnitude 8.8. Because it had already enforced seismic provisions of building codes, there was little loss of life due to damage to buildings. Engineered structures also performed very well during the giant 2011 Tohoku earthquake in northeast Japan; however, approximately 20,000 lives were lost to the ensuing tsunami. What survival strategies are available for communities at risk for tsunamis?</jats:p>

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

<jats:p>EPO can break careers—but can it really make them?</jats:p>

<jats:p>Unrelated groups adopted farming at about the same time in different parts of the Fertile Crescent.</jats:p>

<jats:p>Common software settings may have skewed the statistics for thousands of studies.</jats:p>

<jats:p>Charred river houses offer an extraordinary view of everyday life 3000 years ago.</jats:p>