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Monday 25 February 2019

Near ground-state cooling of 2-D trapped ion crystals

Researchers have been trying to cool macroscopic mechanical oscillators down to their ground state for several decades. Nonetheless, past studies have merely attained the cooling of a few selected vibrational modes of such oscillators.

* This article was originally published here

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Memories of movement are replayed randomly during sleep

Sleep is far from an inactive time for the brain: while rats (and humans) are asleep, neurons in the hippocampus fire rapidly. After a rat has repeatedly moved from one spot to another, the same neurons that fired while the rat moved "replay" this firing while the rat is asleep, i.e. they fire in the same, but much quicker, pattern. Previously, it was thought that replay patterns only correspond to trips rats had made repeatedly while awake. Writing in Neuron today, Postdoc Federico Stella and Professor Jozsef Csicsvari at the Institute of Science and Technology Austria (IST Austria), show also that when rats roam around freely, the hippocampus replays during sleep, but it does so in a random manner that resembles the famous Brownian motion known from randomly moving particles.

* This article was originally published here

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Bristol undergraduate reconstructs the skulls of two species of ancient reptile

Using two partially fragmented fossil skulls, a student at the University of Bristol has digitally reconstructed, in three-dimensions, the skulls of two species of ancient reptile that lived in the Late Triassic, one of which had been previously known only from its jaws.

* This article was originally published here

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Ikea curtains break down pollutants, highlight interest in fabric purifiers

Can you use textiles to clean the air? Take sunlight. Add a film coating to fabric. And you get curtains that destroy pollutants and purify the air inside your home. The recipe is being touted by Ikea. Along with bunk beds and bedside tables, some thinkers at Ikea have been looking into technologies that can address indoor air pollution without having to resort to more complex filtering systems or electric power.

* This article was originally published here

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GE sells biopharma unit for $21 billion

General Electric is selling its biopharma business to Danaher Corp. for $21.4 billion as it continues to sell off chunks of a once sprawling conglomerate.

* This article was originally published here

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Flexible display talk: Smartphone might fold around your wrist

A phone that folds? Smartphone vendors think it can capture imaginations as they work to come up with newer gee-whiz designs to sell phones. This month, there is one foldable phone in the wings that is capturing special attention because it can transform into a smartwatch.

* This article was originally published here

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New antibiotics are desperately needed—machine learning could help

Researchers at Stanford have created an algorithm that, guided by previous research, lays out the DNA sequences most likely to align with antimicrobial properties.

* This article was originally published here