The fine-scale genetic structure of the British population
http://www.nature.com/nature/journal/v519/n7543/full/nature14230.html Correlation w. geography, reflecting Anglo-Saxon migration
http://www.nature.com/nature/journal/v519/n7543/full/nature14230.html
related to blood sugar level
http://www.theguardian.com/science/shortcuts/2014/apr/15/hangry-stupid-made-up-word-angry-hungry
Bright light outdoors is good — but stay in the shade to avoid skin cancer.
The #myopia boom http://www.nature.com/news/the-myopia-boom-1.17120 Was attributed to books; now epidemiological & lab evidence suggests not enough daylight for kids
QT:{{"
“Rose’s team tried to eliminate any other explanations for this link — for example, that children outdoors were engaged in more physical activity and that this was having the beneficial effect. But time engaged in indoor sports had no such protective association; and time outdoors did, whether children had played sports, attended picnics or simply read on the beach. And children who spent more time outside were not necessarily spending less time with books, screens and close work. “We had these children who were doing both activities at very high levels and they didn’t become myopic,” says Rose. Close work might still have some effect, but what seemed to matter most was the eye’s exposure to bright light.
See the light
Some researchers think that the data to support the link need to be more robust. Most epidemiological studies have estimated children’s time outdoors from questionnaires — but Christine Wildsoet, an optometrist at the University of California, Berkeley, says that such data should be treated with caution. In a small, pilot study of wearable light sensors, she found that people’s estimates often do not match up with their actual exposure. And Ian Flitcroft, a myopia specialist at Children’s University Hospital in Dublin, questions whether light is the key protective factor of being outdoors. He says that the greater viewing distances outside could affect myopia progression, too. “Light is not the only factor, and making it the explanation is a gross over-simplification of a complex process,” he says.
Yet animal experiments support the idea that light is protective. Researchers first demonstrated this in chicks, a common lab model for studying vision. By fitting chicks with goggles that alter the resolution and contrast of incoming images, it is possible to induce the development of myopia while raising the birds under controlled conditions in which only light intensity is changed. In 2009, Regan Ashby, Arne Ohlendorf and Frank Schaeffel from the University of Tübingen’s Institute for Ophthalmic Research in Germany showed that high illumination levels — comparable to those encountered outside — slowed the development of experimentally induced myopia in chicks by about 60% compared with normal indoor lighting conditions. Researchers elsewhere have found similar protective effects in tree shrews and rhesus monkeys.”
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#Physics in finance
http://www.nature.com/news/physics-in-finance-trading-at-the-speed-of-light-1.16872 Real estate opportunites from relativatistic arbitrage: locating exactly midway betw. market hubs
GM microbes…that can’t escape the lab
http://www.nature.com/news/gm-microbes-created-that-can-t-escape-the-lab-1.16758 Repurposing stops to synthetic amino acids; useful for biofuels & communities
Church & Isaacs
Scientists & cheesemakers gather for (microbial) culture
http://www.nature.com/news/scientists-and-cheesemakers-gather-for-microbial-culture-1.15776 #Cheese is big for #microbiome differences one can taste
Also: http://www.sciencedirect.com/science/article/pii/S0092867414007454
Microbiologists are on a quest to catalogue and control the bacteria that make each raw-milk cheese unique.
Ewen Callaway
27 August 2014
Is this tetrahedral?
Ir-containing compound w/ a formal #oxidation state of IX http://www.nature.com/nature/journal/v514/n7523/full/nature13795.html
Surpassing OsO4, removing d electron gives [IrO4]+ cation
"Removal of the remaining d electron from IrO4 would lead to the iridium tetroxide cation ([IrO4]+)"
Mammalian Y chromosomes retain widely expressed dosage-sensitive regulators http://www.nature.com/nature/journal/v508/n7497/full/nature13206.html Reconstructed #evolution across 8 species
Daniel W. Bellott,
Jennifer F. Hughes,
…
Richard A. Gibbs,
Richard K. Wilson
& David C. Page
Nature 508, 494–499 (24 April 2014) doi:10.1038/nature13206
Spacetime wiring specificity supports…selectivity in the retina http://www.nature.com/nature/journal/v509/n7500/full/nature13240.html @eye_wire citizenscience traces neural connectivity
finds a time lag circuit
Jinseop S. Kim,
Matthew J. Greene,
…
H. Sebastian Seung
& the EyeWirers
Nature 509, 331–336 (15 May 2014) doi:10.1038/nature13240
Study reveals…particle size matters for environmental DNA monitoring http://news.nd.edu/news/48396-notre-dame-study-reveals-that-size-matters-for-environmental-dna-monitoring #eDNA finds the rare fish in a pond, ala CSI