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Two-part system turns stem cells into whatever you want

Whether using embryonic or adult stem cells, coercing these master cells to convert to the desired target cell and reproduce flawlessly is difficult. Now an international team of researchers has a two-part system that can convert the cells to the targets and then remove the remnants of that conversion, leaving only the desired DNA behind to duplicate.

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Physicists demonstrate new way to violate local causality

(Phys.org)-For the first time, physicists have experimentally demonstrated the violation of “bilocal causality”-a concept that is related to the more standard local causality, except that it accounts for the precise way in which physical systems are initially generated. The results show that it’s possible to violate local causality in an entirely new and more general way, which could lead to a potential new resource for quantum technologies.

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A Genetic Oddity May Give Octopuses and Squids Their Smarts

Unlike other organisms, coleoid cephalopods make extensive use of RNA editing, which could slow their evolution but may make their behavior more complex than other invertebrates.

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A New Form of Stem-Cell Engineering Raises Ethical Questions

“Sheefs” will test the limits of current regulations, experts say, as embryolike structures are created directly from stem cells.

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As Moore's law ends, brain-like computers begin

For five decades, Moore’s law held up pretty well: Roughly every two years, the number of transistors one could fit on a chip doubled, all while costs steadily declined. Today, however, transistors and other electronic components are so small they’re beginning to bump up against fundamental physical limits on their size. Moore’s law has reached its end, and it’s going to take something different to meet the need for computing that is ever faster, cheaper and more efficient.

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Jaime P Oliveira

Over the past 12 months NASA has added five missions to its orbiting Earth-observing fleet-the biggest one-year increase in more than a decade. NASA scientists will discuss early observations from the new missions and their current status during a media teleconference at 2 p.m. EST Thursday, Feb. 26. New views of global carbon dioxide, rain […]

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A high-performance, low-energy artificial synapse for neural network computing

For all the improvements in computer technology over the years, we still struggle to recreate the low-energy, elegant processing of the human brain. Now, researchers at Stanford University and Sandia National Laboratories have made an advance that could help computers mimic one piece of the brain’s efficient design – an artificial version of the space over which neurons communicate, called a synapse.