Catálogo de publicaciones - revistas

<jats:p>Noninvasive deep brain stimulation can be achieved via temporally interfering electric fields</jats:p>

<jats:p>Genetic road maps pave the way to repairing basal ganglia function in Parkinson's disease</jats:p>

<jats:title>Interchanging species of similar function</jats:title> <jats:p> Under natural conditions, bacteria form mixed, interacting communities. Understanding how such communities assemble and stabilize is important in a range of contexts, from biotechnological applications to what happens in our guts. Goldford <jats:italic>et al.</jats:italic> sampled the microbial communities from soil and plants containing hundreds to thousands of sequence variants. The organisms were passaged after culture in low concentrations of single carbon sources and were cross-fed with each other's metabolites; then, the resulting communities were sequenced using 16S ribosomal RNA, and the outcomes were modeled mathematically. The mix of species that survived under steady conditions converged reproducibly to reflect the experimentally imposed conditions rather than the mix of species initially inoculated—although at coarse phylogenetic levels, taxonomic patterns persisted. </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="6401" page="469" related-article-type="in-this-issue" vol="361" xlink:href="10.1126/science.aat1168">469</jats:related-article> </jats:p>

<jats:title>Fluctuating selection in nature</jats:title> <jats:p> Natural environmental variation can lead to individuals within a species experiencing different selective parameters. Seep monkeyflower ( <jats:italic>Mimulus guttatus</jats:italic> ) populations are constrained by local moisture availability and the onset of summer drought. This results in a selective tradeoff between the amount of seed set, which is determined by plant size, and the timing of reproduction. Troth <jats:italic>et al.</jats:italic> sequenced and phenotyped 187 <jats:italic>M. guttatus</jats:italic> plants and identified genetic variants associated with plant and flower size and rapid flowering. In wild populations surveyed over 3 years, the magnitude of selection changed depending on the rainfall patterns. Thus, fluctuating selection may maintain genetic variation in this 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" issue="6401" page="475" related-article-type="in-this-issue" vol="361" xlink:href="10.1126/science.aat5760">475</jats:related-article> </jats:p>

<jats:title>Cranking up the field</jats:title> <jats:p> Cuprate superconductors have many unusual properties even in the “normal” (nonsuperconducting) regions of their phase diagram. In the so-called “strange metal” phase, these materials have resistivity that scales linearly with temperature, in contrast to the usual quadratic dependence of ordinary metals. Giraldo-Gallo <jats:italic>et al.</jats:italic> now find that at very high magnetic fields—up to 80 tesla—the resistivity of the thin films of a lanthanum-based cuprate scales linearly with magnetic field as well, again in contrast to the expected quadratic law. This dual linear dependence presents a challenge for theories of the normal state of the cuprates. </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="6401" page="479" related-article-type="in-this-issue" vol="361" xlink:href="10.1126/science.aan3178">479</jats:related-article> </jats:p>

<jats:title>An expanding radio jet from a destroyed star</jats:title> <jats:p> If a star gets too close to a supermassive black hole, it gets ripped apart in a tidal disruption event (TDE). Mattila <jats:italic>et al.</jats:italic> discovered a transient source in the merging galaxy pair Arp 299, which they interpret as a TDE. The optical light is hidden by dust, but the TDE generated copious infrared emission. Radio observations reveal that a relativistic jet was produced as material fell onto the black hole, with the jet expanding over several years. The results elucidate how jets form around supermassive black holes and suggest that many TDEs may be missed by optical surveys. </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="6401" page="482" related-article-type="in-this-issue" vol="361" xlink:href="10.1126/science.aao4669">482</jats:related-article> </jats:p>

<jats:title>Submarine fiber optic earthquake detection</jats:title> <jats:p> Seismic networks detect earthquakes and are common on continents, where they are easy to install. However, most of Earth's surface is under the oceans, where placing seismometers is difficult. Marra <jats:italic>et al.</jats:italic> now find that ordinary submarine telecommunication cables can be used to detect earthquakes. Small strain changes associated with the passage of seismic waves were detected with laser light sent through in-use fiber optic cables by ultrastable lasers. This strategy could turn intercontinental fiber optic cables into ocean-bottom strain sensors, dramatically improving our ability to record earthquakes. </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="6401" page="486" related-article-type="in-this-issue" vol="361" xlink:href="10.1126/science.aat4458">486</jats:related-article> </jats:p>