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Resisting alien invasions

Invasive species are can be hugely detrimental to marine ecosystems. Take Caulerpa taxifolia as an example. Dubbed “killer algae” because it crowds out other plants and animals as it colonizes an area with great monotypic stands of vegetation, C. taxifolia displaces rich marine habitats that support a variety of fish …

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Optoelectronics without glass

Optical components for microelectronics must be made of glass. Metals are not suitable for this purpose, since optical data can propagate only across roughly a distance of 100 micrometres. This was the general view of scientists until recently. A team of researchers headed by Juerg Leuthold, professor in the Department …

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Cheating time to watch liquids do the slow dance

All this frenetic wiggling makes it easy for molecules to rearrange themselves and for the liquid as a whole to change shape. But for supercooled liquids—liquids like honey that are cooled below their freezing point without crystallizing – the lower temperature slows down the dancing like Etta James’ “At Last.” …

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UC-led genomic study reveals clues to wild past of grapes

UCI UNIVERSITY OF CALIFORNIA, IRVINE FOR IMMEDIATE RELEASE FROM THE UNIVERSITY OF CALIFORNIA, IRVINE NOTE TO EDITORS: PHOTO AVAILABLE AT Irvine, Calif., Nov. 2, 2017 — About 22,000 years ago, as the ice sheets that consumed much of North America and Europe began retreating, humans started to consume a fruit …

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Chip-based sensors with incredible sensitivity

“Whispering gallery mode resonators, which are basically optical resonators, have been intensely studied for at least 20 years,” said Srinivas Tadigadapa, professor of electrical engineering. “What people have done is to take an optical fiber and touch the end with a blow torch. When the melted fiber re-condenses, it forms …

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Should We Let A.I. Diagnose Suicidal Ideation?

A figure from the Carnegie Melon study, which used machine learning and fMRI to distinguish between people who’d thought about suicide and people who had not. Carnegie Mellon University Earlier this week, the journal Nature Human Behaviour published a controversial study in which researchers claimed to be able to detect …

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