Posts Tagged ‘naturepodcast2014’

The fine-scale genetic structure of the British population : Nature : Nature Publishing Group

July 11, 2015

The fine-scale genetic structure of the British population Correlation w. geography, reflecting Anglo-Saxon migration

Hangry: a stupid, made-up word for being hungry and angry at the same time? | Science | The Guardian

May 17, 2015

related to blood sugar level

The myopia boom

April 13, 2015

Bright light outdoors is good — but stay in the shade to avoid skin cancer.

The #myopia boom Was attributed to books; now epidemiological & lab evidence suggests not enough daylight for kids


“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.”


Physics in finance: Trading at the speed of light : Nature News & Comment

April 3, 2015

#Physics in finance Real estate opportunites from relativatistic arbitrage: locating exactly midway betw. market hubs

GM microbes created that can’t escape the lab : Nature News & Comment

April 1, 2015

GM microbes…that can’t escape the lab Repurposing stops to synthetic amino acids; useful for biofuels & communities

Church & Isaacs

Cheese Rind Communities Provide Tractable Systems for In Situ and In Vitro Studies of Microbial Diversity

March 29, 2015

Scientists & cheesemakers gather for (microbial) culture #Cheese is big for #microbiome differences one can taste


Microbiologists are on a quest to catalogue and control the bacteria that make each raw-milk cheese unique.
Ewen Callaway
27 August 2014

Identification of an iridium-containing compound with a formal oxidation state of IX : Nature : Nature Publishing Group

March 7, 2015

Is this tetrahedral?

Ir-containing compound w/ a formal #oxidation state of IX
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 : Nature : Nature Publishing Group

February 21, 2015

Mammalian Y chromosomes retain widely expressed dosage-sensitive regulators 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

Space-time wiring specificity supports direction selectivity in the retina : Nature : Nature Publishing Group

February 21, 2015

Spacetime wiring specificity supports…selectivity in the retina @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

Notre Dame study reveals that particle size matters for environmental DNA monitoring // News // Notre Dame News // University of Notre Dame

February 10, 2015

Study reveals…particle size matters for environmental DNA monitoring #eDNA finds the rare fish in a pond, ala CSI