Catálogo de publicaciones - revistas

<jats:title>We are not alone</jats:title> <jats:p>Before the mid-20th century, it was generally assumed that culture, behavior learned from others, was specific to humans. However, starting with identification in a few species, evidence that animals can learn and transmit behaviors has accumulated at an ever-increasing pace. Today, there is no doubt that culture is widespread among animal species, both vertebrates and invertebrates, marine and terrestrial. Whiten reviews evidence for animal culture and elaborates on the wide array of forms that such culture takes. Recognizing that other species have complex and varied culture has implications for conservation and welfare and for understanding the evolution of this essential component of animal societies, including our own.</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.abe6514">eabe6514</jats:related-article> </jats:p>

<jats:title>Brain region coordination in learning</jats:title> <jats:p> Gamma-frequency oscillations have been hypothesized as a physiological mechanism of interregional communication in the brain. However, until now, all supporting data have been correlational and thus indirect. Fernández-Ruiz <jats:italic>et al.</jats:italic> examined gamma-frequency activity and spike coupling between the entorhinal cortex and hippocampal dentate gyrus during learning and after selective perturbation of gamma-frequency spike timing. They observed an integrated neuron, gamma-band, and task-specific organization of the entorhinal cortex–hippocampal circuits. These data demonstrate that specific, projected gamma-frequency oscillation patterns dynamically engage functionally related cell assemblies across brain regions in a task-specific manner. </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.abf3119">eabf3119</jats:related-article> </jats:p>

<jats:p>It took the mass murder of six Asian women in Atlanta last week to draw national attention to what Asian Americans have been warning about since the wake of the pandemic: anti-Asian violence. The incident reflects an under-recognized history of anti-Asian violence and discrimination in this country that dates back more than 150 years. This needs to change. Asian Americans must become central to the discourse on race in America. For the country to “care” about the outcry by Asian Americans, the public needs to understand how America got to this point.</jats:p>

<jats:p>This month, the U.S. Senate is poised to consider legislation that would expand the National Science Foundation (NSF) and strengthen the U.S. science and technology research ecosystem. The heart of the legislation will be the Endless Frontier Act (EFA), a bipartisan and bicameral bill that was first introduced to the previous Congress in May 2020. With some modifications, this legislation could become a landmark achievement that bolsters U.S. competitiveness.</jats:p>

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

<jats:p>Relaxed control measures, virus variants, and weather may drive powerful second wave.</jats:p>

<jats:p>Running on empty at bedside, bench, and beyond.</jats:p>

<jats:p>Some nations limit shot to older people, as probe of clotting disorders continues.</jats:p>

<jats:p>Detectors aim to trace high-energy particles to violent cosmic accelerators in deep space.</jats:p>

<jats:p>Outside researchers are offered telescope time and access to Moon rocks, but some are uneasy about the relationship.</jats:p>