Catálogo de publicaciones - revistas

<jats:title>A brave new world with a wider view</jats:title> <jats:p> Researchers have long attempted to follow animals as they move through their environment. Until relatively recently, however, such efforts were limited to short distances and times in species large enough to carry large batteries and transmitters. New technologies have opened up new frontiers in animal tracking remote data collection. Hussey <jats:italic>et al.</jats:italic> review the unique directions such efforts have taken for marine systems, while Kays <jats:italic>et al.</jats:italic> review recent advances for terrestrial species. We have entered a new era of animal ecology, where animals act as both subjects and samplers of their environments. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue <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.1255642">10.1126/science.1255642</jats:related-article> , <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.aaa2478">10.1126/science.aaa2478</jats:related-article> </jats:p>

<jats:title>A shot in the arm for damaged tissue</jats:title> <jats:p> Tissue damage can be caused by injury, disease, and even certain medical treatments. There is great interest in identifying drugs that accelerate tissue regeneration and recovery, especially drugs that might benefit multiple organ systems. Zhang <jats:italic>et al.</jats:italic> describe a compound with this desired activity, at least in mice (see the Perspective by FitzGerald). SW033291 promotes recovery of the hematopoietic system after bone marrow transplantation, prevents the development of ulcerative colitis in the intestine, and accelerates liver regeneration after hepatic surgery. It acts by inhibiting an enzyme that degrades prostaglandins, lipid signaling molecules that have been implicated in tissue stem cell maintenance. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue <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.aaa2340">10.1126/science.aaa2340</jats:related-article> ; see also p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6240" page="1208" related-article-type="in-this-issue" vol="348" xlink:href="10.1126/science.aac5515">1208</jats:related-article> </jats:p>

<jats:p>In 2008, a Ghanaian entrepreneur established a drug company in her country. This motivated a young Ghanaian woman to study biotechnology, and a Ghanaian man, employed at a U.S. pharmaceutical company, to return to Ghana. In the past decade, enterprising young Nigerians with few resources went to China and found ways to bring cheap computers and other equipment home, allowing Nigerian students to access the Internet and learn. Profit-driven entrepreneurs like these, big and small, are promoting learning in low-income countries in different fields, including science and engineering. How can this process be furthered and accelerated in such countries?</jats:p>

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

<jats:p>South Korea's explosive outbreak gives scientists fresh opportunities to study the virus.</jats:p>

<jats:p>Can soft tissue survive 75 million years?</jats:p>

<jats:p>Ancient lake sediments in China record epic temperature swings, biotic turnover before the mass extinction.</jats:p>

<jats:p>NIH workshop delves into challenges of testing invasive neuromodulation technology.</jats:p>

<jats:p>Susan Larson defends her work with two research chimpanzees at the heart of a legal battle.</jats:p>