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Arsenic risk in Pakistan much greater than expected
Wed, 23 Aug 2017 14:54:01 EDT
Arsenic-contaminated groundwater may threaten the health of 50 to 60 million people in Pakistan. This is shown by a study in which data from 1,200 groundwater samples was analyzed and combined with hydrological parameters to generate a hazard map. This reveals for the first time the full extent of the risks to which the population of Pakistan is exposed. In addition, there is growing evidence that natural arsenic levels are increased by extensive irrigation.
Disease-carrying mosquitoes rare in undisturbed tropical forests
Wed, 23 Aug 2017 14:53:57 EDT
A new study concludes that conserving old-growth tropical rainforest is 'highly recommended' to prevent new outbreaks of viral and parasitic mosquito-borne diseases.
Dolphin that existed along South Carolina coast long ago
Wed, 23 Aug 2017 14:24:47 EDT
Researchers have discovered a species of extinct dolphin off the coast of South Carolina.
New microbe has potential to help rebalance Earth's nitrogen cycle
Wed, 23 Aug 2017 14:24:27 EDT
Microbiologists have now provided unparalleled insight into the Earth's nitrogen cycle, identifying and characterizing the ammonia-oxidizing microbe, Nitrospira inopinata.
Confederate submarine crew killed by their own weapon
Wed, 23 Aug 2017 14:07:03 EDT
A powerful shockwave from the H.L. Hunley's own weapon killed the crew of the Confederate combat submarine as it sunk a Union ship. This finding comes from a four-year research project that involved repeatedly setting blasts near a scale model, shooting authentic weapons at historically accurate iron plate and many calculations on human respiration and the transmission of blast energy.
New fly fossil sheds light on the explosive radiation of flies during the Cenozoic Era
Wed, 23 Aug 2017 14:07:00 EDT
The first unambiguous fossil from the botfly family adds to the few known fossils of a major clade of flies (Calyptratae), shedding light on their rapid radiation during the Cenozoic Era, according to a new study.
You and some 'cavemen' get a genetic checkup
Wed, 23 Aug 2017 14:06:50 EDT
Evolution has weeded out genetic variants associated with diseases for millennia and propagated variants that protect against ailments, a comparative genetics study shows. But in the last 500 to 1,000 years that trend appears to have changed. Is the apparent reversal in genetic health underpinnings real£ Or an odd coincidence in the early data set of this very new research field£
Black holes: Scientists 'excited' by observations suggesting formation scenarios
Wed, 23 Aug 2017 13:12:44 EDT
Physicists have described how observations of gravitational waves limit the possible explanations for the formation of black holes outside of our galaxy; either they are spinning more slowly than black holes in our own galaxy or they spin rapidly but are 'tumbled around' with spins randomly oriented to their orbit.
Major leap towards data storage at the molecular level
Wed, 23 Aug 2017 13:12:41 EDT
Scientists have now demonstrated that storing data with a class of molecules known as single-molecule magnets is more feasible than previously thought.
'Nano-hashtags' could provide definite proof of Majorana particles
Wed, 23 Aug 2017 13:12:37 EDT
An advanced quantum chip will be able to provide definitive proof of the mysterious Majorana particles and a crucial step towards their use as a building block for future quantum computers, say researchers.
Methane from tundra, ocean floor didn't spike during previous natural warming period
Wed, 23 Aug 2017 13:12:34 EDT
The last ice age transition to a warmer climate some 11,500 years ago did not include massive methane flux from marine sediments or the tundra, new research suggests. Instead, the likely source of rising levels of atmospheric methane was from tropical wetlands, authors of the new study say.
First X-rays detected from mystery supernovas
Wed, 23 Aug 2017 13:12:31 EDT
Scientists appear to have found the first X-rays coming from type Ia supernovae.
Putting it to the test
Wed, 23 Aug 2017 13:12:28 EDT
A rapid portable screening test for liver cancer has been created that doesn't involve sending a specimen to a blood lab and cuts the wait time for results from two weeks to two minutes. This inexpensive test can be administered wherever the patient is, which will be valuable for developing nations with little access to hospitals.
More than expected hidden beneath Andean Plateau
Wed, 23 Aug 2017 13:12:26 EDT
Seismologists investigating how Earth forms new continental crust have compiled more than 20 years of seismic data from a wide swath of South America's Andean Plateau and determined that processes there have produced far more continental rock than previously believed.
How muscles work: New insight
Wed, 23 Aug 2017 12:41:14 EDT
Muscle malfunctions may be as simple as a slight strain after exercise or as serious as heart failure and muscular dystrophy. A new technique now makes it possible to look much more closely at how sarcomeres, the basic building blocks within all skeletal and cardiac muscles, work together. It's a discovery that should advance research into a wide range of muscle malfunctions.
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