Agricultural insecticides pose a global risk to surface water bodies, researchers find

Science Daily - Wed, 25/02/2015 - 1:28pm
Streams within approximately 40 percent of the global land surface are at risk from the application of insecticides. These were the results from the first global map to be modeled on insecticide runoff to surface waters. Streams, especially those in the Mediterranean, the United States, Central America and Southeast Asia are at risk.
Categories: Science

Flexible nanosensors for wearable devices

Science Daily - Wed, 25/02/2015 - 1:28pm
Scientists will now be able to fabricate optical nanosensors capable of sticking to uneven surfaces and biological surfaces, like human skin. This result can boost the use of wearable devices to monitor parameters such as temperature, breath and heart pressure. This is a low cost technology, as the researchers use materials like standard polycarbonate compact disks, aluminum films and adhesive tapes.
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Scientists develop novel method to suppress malaria parasite's virulence genes, break the code of its immune evasion

Science Daily - Wed, 25/02/2015 - 1:27pm
Up to one million people, mostly pregnant woman and young children, are killed each year by the Plasmodium falciparum parasite, which causes the most devastating form of human malaria. Now, researchers have revealed the genetic trickery this deadly parasite deploys to escape attack by the human immune system.
Categories: Science

Experts criticize 'inaccurate' view that B Vitamins have no role in Alzheimer's disease prevention

Science Daily - Wed, 25/02/2015 - 1:27pm
Patients in the very early stages of dementia could miss out on a potentially effective treatment after misleading research was published last year, say medical experts.
Categories: Science

Using snus doubles the risk of alcohol dependency

Science Daily - Wed, 25/02/2015 - 1:27pm
People who use snus run twice the risk of developing alcohol dependency compared with non-users, and the more one uses snus, the higher the risk, a study shows. "A doubled risk of alcohol dependency can be a seemingly quite moderate risk increase seen from the individual perspective, but if using snus is common in a population, it means that the overall use of snus might have an impact on public health," an author explains.
Categories: Science

Norway rats reciprocate help according to the quality of the help they received

Science Daily - Wed, 25/02/2015 - 1:27pm
Non-human animals consider the value of previously received help when deciding whether to help a social partner, according to a new study in rats. Until now, it was unclear whether animals other than humans would consider the the value of a help received (independent of other parameters such as the partner’s identity or effort taken) when deciding how to reciprocate.
Categories: Science

Why companies don't learn from their mistakes

Science Daily - Wed, 25/02/2015 - 1:25pm
The mobile phone bill is not quite correct, the wrong food is served at a restaurant or the hotel room hasn't been properly cleaned: Most of us may have been annoyed about situations like these. Self-confident customers then usually vent their dissatisfaction towards a service employee. But what happens next? Do companies analyze the complaints of unhappy customers to learn from them and to improve the service quality? A new study suggests not.
Categories: Science

Himalayan ice shows chemicals ban is working

Science Daily - Wed, 25/02/2015 - 1:25pm
A unique study of frozen ice cores from the Tibetan Himalayas has shown that international agreements on phasing out the use of toxic persistent organic pollutants are working. "Chemical residues are carried thousands of miles on the prevailing winds and deposited in the ice. Ice cores are very effective barometers of pollution over time as ice is laid down over the decades," authors explain.
Categories: Science

Playful adults preferred in choice of partner

Science Daily - Wed, 25/02/2015 - 1:25pm
Which characteristics do young adults value in a potential partner for long-term relationships? A new study reveals that, besides friendliness, intelligence and a sense of humor, playfulness is also important – regardless of gender. Playful people also deem humor, a fun tendency, a laid-back attitude and creativity more important in partners than their non-playful counterparts.
Categories: Science

Spin laser: Rapid data transfer thanks to quantum physics

Science Daily - Wed, 25/02/2015 - 1:25pm
Engineers have developed a new concept for accelerating data transfer in server farms. To this end, the team has applied a quantum-mechanical variable, i.e. the spin. Researchers are optimizing the so-called spin lasers for data transfer.
Categories: Science

New nanowire structure absorbs light efficiently: May be used in LEDs and solar cells

Science Daily - Wed, 25/02/2015 - 1:25pm
Researchers have developed a new method to implement different types of nanowires side-by-side into a single array on a single substrate. The new technique makes it possible to use different semiconductor materials for the different types of nanowires.
Categories: Science

Novel computer model designed to understand cardiovascular diseases

Science Daily - Wed, 25/02/2015 - 1:25pm
A novel three-dimensional, multiscale and multicomponent model of endothelial cells monolayer, the inner lining of artery, has been developed by researchers to identify the cellular mechanisms involved in cardiovascular diseases (CVD). New research based on the model is able to identify the main cellular pathways involved in the initiation and progression of the disease.  
Categories: Science

Republicans Back Down, FCC To Enforce Net Neutrality Rules

Slashdot - Wed, 25/02/2015 - 1:14pm
An anonymous reader writes: Republican resistance has ended for the FCC's plans to regulate the internet as a public utility. FCC commissioners are working out the final details, and they're expected to approve the plan themselves on Thursday. "The F.C.C. plan would let the agency regulate Internet access as if it is a public good.... In addition, it would ban the intentional slowing of the Internet for companies that refuse to pay broadband providers. The plan would also give the F.C.C. the power to step in if unforeseen impediments are thrown up by the handful of giant companies that run many of the country's broadband and wireless networks." Dave Steer of the Mozilla Foundation said, "We've been outspent, outlobbied. We were going up against the second-biggest corporate lobby in D.C., and it looks like we've won."

Read more of this story at Slashdot.








Categories: Science

Mars Rover Curiosity Snaps Amazing Selfie at Latest Drilling Site (Photo)

Space.com - Wed, 25/02/2015 - 1:08pm
The photo, which was released today (Feb. 24), is a composite of dozens of images taken in late January by Curiosity's Mars Hand Lens Imager. The mosaic provides a great view of the "Pahrump Hills" outcrop at the base of the huge Mount Sharp.
Categories: Science

'Golden Stars' Flicker in Patterns That Da Vinci Would Love

Space.com - Wed, 25/02/2015 - 1:06pm
Although these "golden stars" were spotted during a search for an extraterrestrial galactic Internet, the researchers say intelligent aliens have nothing to do with their flickering patterns, as far as they can tell.
Categories: Science

The Far Side of the Moon Has Phases and Now You Can See 'Em (Video)

Space.com - Wed, 25/02/2015 - 1:02pm
The far side of the moon undergoes phases of light and dark, just like the side facing Earth. A new video featuring images from NASA's Lunar Reconnaissance Orbiter brings those phases to light.
Categories: Science

A Novel Furniture Idea: Squeeze It From a Tube

Wired News - Wed, 25/02/2015 - 12:00pm

The plastic elements look like ropes made out of Play-doh.

The post A Novel Furniture Idea: Squeeze It From a Tube appeared first on WIRED.


Categories: Science

How the Sahara Keeps the Amazon Green

Wired News - Wed, 25/02/2015 - 12:00pm

The Sahara Desert is huge, hot, and full of sand and dust. The Amazon basin is huge, warm, but full of greenery and wildlife. And one can’t live without the other. The Amazon, it seems, depends on the Sahara for its very survival. The link: Dust. Specifically, phosphorous and other nutrients, kicked up by the […]

The post How the Sahara Keeps the Amazon Green appeared first on WIRED.


Categories: Science

Review: Bowers & Wilkins T7 Bluetooth Speaker

Wired News - Wed, 25/02/2015 - 12:00pm

The Bowers & Wilkins T7 speaker isn't a failure, but it is not the stunning success one would expect to see from this high-end audio brand.

The post Review: Bowers & Wilkins T7 Bluetooth Speaker appeared first on WIRED.








Categories: Science

Astronauts Taking Spacewalk Outside Space Station Today: Watch Live

Space.com - Wed, 25/02/2015 - 11:41am
In the near future, astronauts will be able to take private space taxis to the to the International Space Station. Today, two NASA astronauts will complete the second of three spacewalks to prepare the station for the arrival of those taxis.
Categories: Science