Earthquake simulation tops one petaflop mark

Science Daily - Tue, 15/04/2014 - 5:39pm
Computer scientists, mathematicians and geophysicists have optimized the SeisSol earthquake simulation software on the SuperMUC high performance computer to push its performance beyond the 'magical' one petaflops mark -- one quadrillion floating point operations per second.
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How mothers help children explore right and wrong

Science Daily - Tue, 15/04/2014 - 5:39pm
Moms want their kids to grow up to be good people -- but how do they actually help their offspring sort out different types of moral issues? A new study shows many moms talk to their kids in ways that help them understand moral missteps. The study also shows that the nature of the maternal role develops along with the children, as parents evolve from gentle teachers for youngsters to sounding boards for teenagers.
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Lens turns any smartphone into a portable microscope

Science Daily - Tue, 15/04/2014 - 5:38pm
The Micro Phone Lens can turn any smartphone or tablet computer into a hand-held microscope. The soft, pliable lens sticks to a device's camera without any adhesive or glue and makes it possible to see things magnified dozens of times on the screen.
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Biologists develop nanosensors to visualize movements and distribution of plant stress hormone

Science Daily - Tue, 15/04/2014 - 5:38pm
Biologists have succeeded in visualizing the movement within plants of a key hormone responsible for growth and resistance to drought. The achievement will allow researchers to conduct further studies to determine how the hormone helps plants respond to drought and other environmental stresses driven by the continuing increase in the atmosphere’s carbon dioxide, or CO2, concentration.
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Gut capacity limits bird's ability to adapt to rapid climate change

Science Daily - Tue, 15/04/2014 - 5:38pm
An ornithologist has found that the capacity of a bird’s gut to change with environmental conditions is a primary limiting factor in their ability to adapt to the rapidly changing climate. And he believes that most other animals are also limited in a similar way.
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Wind tunnel tests support improved aerodynamic design of B61-12 bomb

Science Daily - Tue, 15/04/2014 - 5:38pm
Sandia National Laboratories has finished eight days of testing a full-scale mock unit representing the aerodynamic characteristics of the B61-12 gravity bomb in a wind tunnel. The tests on the mock-up were done to establish the configuration that will deliver the necessary spin motion of the bomb during freefall and are an important milestone in the Life Extension Program to deliver a new version of the aging system, the B61-12.
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Tiger beetle's chase highlights mechanical law

Science Daily - Tue, 15/04/2014 - 5:38pm
If an insect drew a line as it chased its next meal, the resulting pattern would be a tangled mess. But there’s method to that mess: It turns out the tiger beetle, known for its speed and agility, does an optimal reorientation dance as it chases its prey at blinding speeds.
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Osteoporosis risk heightened among sleep apnea patients

Science Daily - Tue, 15/04/2014 - 5:38pm
A diagnosis of obstructive sleep apnea may raise the risk of osteoporosis, particularly among women or older individuals, according to a new study. Sleep apnea is a condition that causes brief interruptions in breathing during sleep. Obstructive sleep apnea, the most common form, occurs when a person's airway becomes blocked during sleep. If sleep apnea goes untreated, it can raise the risk for stroke, cardiovascular disease and heart attacks.
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NASA Photo May Show Birth of New Saturn Moon (Image)

Space.com - Tue, 15/04/2014 - 5:26pm
Photographs taken by NASA's Cassini probe in April 2013 show a bright arc about 750 miles long and 6 miles wide at the edge of Saturn's outermost ring. This arc was probably created by the gravity of a small, icy object nearby — possibly a newborn moon.
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Eruption Update for April 15, 2014: Tungurahua, Momotombo, Ubinas and Nyamuragira

Wired News - Tue, 15/04/2014 - 5:26pm
Hard to believe that April is half over. For me, it is equally hard to believe that we got ~1 inch of snow overnight here in central Ohio when it was 77F on Sunday. Updates on some volcanic activity (and one eruption that isn’t happening): Perú Explosive activity continues at Perú’s Ubinas as well. A state of emergency […]






Categories: Science

A Sweet, Sad Stop-Motion Film Made With 3-D Printing

Wired News - Tue, 15/04/2014 - 5:10pm
Here's an innovative use for your 3D printer: moviemaking.






Categories: Science

Intuit, Maker of Turbotax, Lobbies Against Simplified Tax Filings

Slashdot - Tue, 15/04/2014 - 5:07pm
McGruber (1417641) writes "Return-free filing might allow tens of millions of Americans to file their taxes for free and in minutes. Under proposals authored by several federal lawmakers, it would be voluntary, using information the government already receives from banks and employers and that taxpayers could adjust. The concept has been endorsed by Presidents Obama and Reagan and is already a reality in some parts of Europe. Sounds great, except to Intuit, maker of Turbotax: last year, Intuit spent more than $2.6 million on lobbying, some of it to lobby on four bills related to the issue, federal lobbying records show."

Read more of this story at Slashdot.








Categories: Science

Tax Day in Space: How NASA Astronauts Pay Uncle Sam

Space.com - Tue, 15/04/2014 - 4:57pm
The Tax Man cometh for Americans today (April 15), and not even astronauts in space can escape their earthly annual taxes. It's a safe bet American astronauts Rick Mastracchio and Steve Swanson on the International Space Station took care of their taxes.
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Genetic pre-disposition toward exercise, mental development may be linked

Science Daily - Tue, 15/04/2014 - 4:56pm
A potential link between the genetic pre-disposition for high levels of exercise motivation and the speed at which mental maturation occurs has been found by researchers. These scientists studied the brains of the rats and found much higher levels of neural maturation in the brains of the active rats than in the brains of the lazy rats.
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More should be done for female parolees, experts say

Science Daily - Tue, 15/04/2014 - 4:55pm
As the female prison population grows, a new study says more should be done to help women probationers and parolees in poor urban areas remain crime-free. Probation and parole officers, case managers and others should help the women find housing in safer areas and provide access to resources to help them stay clean, sober and stable. That could be something as simple as transportation to a mental health or substance abuse treatment meeting, said the lead author on the study.
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New method of screening children for autism spectrum disorders works at 9 months old

Science Daily - Tue, 15/04/2014 - 4:55pm
Researchers have identified head circumference and head tilting reflex as two reliable biomarkers in the identification of autism spectrum disorders (ASD) in children that are between 9 and 12 months of age. ASD is identifiable as early as two years old, although most children are not identified until after the age of four. While a number of studies have reported that parents of children with ASD notice developmental problems in children before their first birthday, there has yet to be a screening tool to identify those children.
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Targeting cancer with a triple threat: New nanoparticles can deliver three drugs at once

Science Daily - Tue, 15/04/2014 - 4:55pm
Chemists have designed nanoparticles that can deliver three cancer drugs at a time. Such particles could be designed to carry even more drugs, allowing researchers to develop new treatment regimens that could better kill cancer cells while avoiding the side effects of traditional chemotherapy. "We think it's the first example of a nanoparticle that carries a precise ratio of three drugs and can release those drugs in response to three distinct triggering mechanisms," says the lead researcher and author.
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Rethink education to fuel bioeconomy, says report

Science Daily - Tue, 15/04/2014 - 4:55pm
Microbes can be highly efficient, versatile and sophisticated manufacturing tools, and have the potential to form the basis of a vibrant economic sector. In order to take full advantage of the opportunity microbial-based industry can offer, though, educators need to rethink how future microbiologists are trained, according to a report.
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New method isolates immune cells to study how they ward off oral diseases

Science Daily - Tue, 15/04/2014 - 4:53pm
Dental researchers have found a less invasive way to extract single rare immune cells from the mouth to study how the mouth’s natural defenses ward off infection and inflammation. By isolating some specialized immune cells (white blood cells known as "leukocytes") to study how they fight diseases in the mouth -- or reject foreign tissues, such as in failed organ transplants -- researchers hope to learn more about treating and preventing such health issues as oral cancers, cardiovascular disease, AIDS and other infectious diseases.
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Bioarchaeologists link climate instability to human mobility in ancient Sahara

Science Daily - Tue, 15/04/2014 - 4:53pm
Researchers have uncovered clues to how past peoples moved across their landscape as the once lush environment deteriorated. Scientists sampled bone and teeth enamel, and used their chemical signatures to determine individuals' origins, as well as where they resided during the course of their lives. The results suggest that individuals chose different mobility strategies but that near the end of the lake area's occupation, as their environment dried out, Saharan peoples became more mobile.
Categories: Science