Heavens

Electric eels deliver Taser-like shocks

The Taser works by overwhelming the nerves that control the muscles in the target's body, causing the muscles to involuntarily contract. To determine if the eel's electrical discharge had the same effect, Catania walled off part of the aquarium with an electrically permeable barrier. He placed a pithed fish on other side of the barrier from the eel and then fed the eel some earthworms, which triggered its electrical volleys. The volleys that passed through the barrier and struck the fish produced strong muscle contractions.

Finding infant earths and potential life just got easier

ITHACA, N.Y. - Among the billions and billions of stars in the sky, where should astronomers look for infant Earths where life might develop? New research from Cornell University's Institute for Pale Blue Dots shows where - and when - infant Earths are most likely to be found. The paper by research associate Ramses M. Ramirez and director Lisa Kaltenegger, "The Habitable Zones of Pre-Main-Sequence Stars" will be published in the Jan. 1, 2015, issue of Astrophysical Journal Letters.

How to create and sustain clinical-research partnerships

SEATTLE--Pragmatic clinical trials--real-life tests done in real-world settings--are increasingly important for answering pressing questions about how best to deliver health care. But these pragmatic trials require close collaboration between two professional groups who often have contrasting styles. One group is researchers, who follow structure like classical musicians. The other is and health care providers and administrators, who may need to improvise like jazz musicians. How in the world can such disparate players make beautiful music together?

Research could improve nuclear power plant safety -- and stop your kettle furring up

Taking inspiration from nature, researchers have created a versatile model to predict how stalagmite-like structures form in nuclear processing plants - as well as how lime scale builds up in kettles.

"It's a wonderful example of how complex mathematical models can have everyday applications," said Dr Duncan Borman, from the School of Civil Engineering at the University of Leeds, a co-author of the study.

The Lancet Respiratory Medicine: Current guidelines not clear on which children most at risk of severe flu complications

Children born prematurely are at an increased risk of flu-related complications, despite not being identified as an "at risk" group in UK, USA, or WHO guidelines, and should be a priority group for the seasonal flu vaccination, new research published in The Lancet Respiratory Medicine suggests.

"Until now, guidelines highlighting groups at greater risk of developing complications from influenza, such as pneumonia, have been based on consensus opinion rather than on systematic assessment of the evidence"*, explains Dr Kay Wang from the University of Oxford in the UK.

World's fastest 2-D camera may enable new scientific discoveries

A team of biomedical engineers at Washington University in St. Louis, led by Lihong Wang, PhD, the Gene K. Beare Distinguished Professor of Biomedical Engineering, has developed the world's fastest receive-only 2-D camera, a device that can capture events up to 100 billion frames per second.

That's orders of magnitude faster than any current receive-only ultrafast imaging techniques, which are limited by on-chip storage and electronic readout speed to operations of about 10 million frames per second.

Protect the world's deltas

Extensive areas of the world's deltas -- which accommodate major cities such as Shanghai, Dhaka and Bangkok -- will be drowned in the next century by rising sea levels, according to a Comment piece in this week's Nature. In the article, Dr. Liviu Giosan, a geologist with the Woods Hole Oceanographic Institution (WHOI), and colleagues call for maintenance efforts to be started now to avert the loss of vast expanses of coastline, and the consequent losses of ecological services, economic and social crises, and large-scale migrations.

Tinkering with the Tao of pandas

Good news on the panda front: Turns out they're not quite as delicate - and picky - as thought.

Up until now, information gleaned from 30 years worth of scientific literature suggested that pandas were inflexible about habitat. Those conclusions morphed into conventional wisdom and thus have guided policy in China. But a Michigan State University (MSU) research associate has led a deep dive into aggregate data and emerged with evidence that the endangered animal is more resilient and flexible than previously believed.

NASA tracks intensifying Typhoon Hagupit

Typhoon Hagupit continues to intensify as it continued moving through Micronesia on Dec. 3 triggering warnings. NASA's Aqua satellite passed overhead and captured an image of the strengthening storm while the Rapidscat instrument aboard the International Space Station provided information about the storm's winds.

'Mirage Earth' exoplanets may have burned away chances for life

Planets orbiting close to low-mass stars -- easily the most common stars in the universe -- are prime targets in the search for extraterrestrial life.

But new research led by an astronomy graduate student at the University of Washington indicates some such planets may have long since lost their chance at hosting life because of intense heat during their formative years.

Toward a low-cost 'artificial leaf' that produces clean hydrogen fuel

For years, scientists have been pursuing "artificial leaf" technology, a green approach to making hydrogen fuel that copies plants' ability to convert sunlight into a form of energy they can use. Now, one team reports progress toward a stand-alone system that lends itself to large-scale, low-cost production. They describe their nanowire mesh design in the journal ACS Nano.

Space travel is a bit safer than expected

Analysis of data from the MATROSHKA experiment, the first comprehensive measurements of long-term exposure of astronauts to cosmic radiation, has now been completed. This experiment, carried out on board and outside of the International Space Station, showed that the cosmos may be less hostile to space travellers than expected.

Scientists in China, US, Israel review the worldwide rise of the 'network of networks'

The interdisciplinary field of network science has attracted enormous attention in the past 10 years, although most results have been obtained by analyzing isolated networks. However many real-world networks interact with and depend on other networks.

West Antarctic melt rate has tripled: UC Irvine-NASA

Irvine, Calif., Dec. 2, 2014 - A comprehensive, 21-year analysis of the fastest-melting region of Antarctica has found that the melt rate of glaciers there has tripled during the last decade.

NASA sees Tropical Storm Hagupit as Micronesia posts warnings

NASA's Aqua satellite captured a visible picture of Tropical Storm Hagupit in the western North Pacific Ocean on December 2, when several warnings were in effect for islands in Micronesia.

Micronesia warnings include a Typhoon Warning for Woleai, Yap and Ngulu in Yap state, a Typhoon Watch posted for Faraulep, Fais and Ulithi in Yap state, and a Tropical Storm Warning for Faraulep in Yap state.