Domestic consumption main contributor to Africa’s growing E-waste

In the five countries studied in the report “Where are WEEE in Africa?” (Benin, Côte d’Ivoire, Ghana, Liberia, and Nigeria), between 650,000 and 1,000,000 tons of domestic E-waste are generated each year, which need to be managed to protect human health and the environment in the region. The report sheds light on current recycling practices [...]

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EEG pattern reflects brain’s shift into low-energy, protective mode

A distinctive pattern of brain activity associated with conditions including deep anesthesia, coma and congenital brain disorders appears to represent the brain’s shift into a protective, low-activity state in response to reduced metabolic energy. A mathematical model developed by a Massachusetts General Hospital (MGH)-based research team accurately predicts and explains for the first time how [...]

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The power of estrogen – male snakes attract other males

A new study has shown that boosting the estrogen levels of male garter snakes causes them to secrete the same pheromones that females use to attract suitors, and turned the males into just about the sexiest snake in the neighborhood – attracting dozens of other males eager to mate. This experiment in the famed garter [...]

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'Dark plasmons' transmit energy

‘Dark plasmons’ transmit energy

Microscopic channels of gold nanoparticles have the ability to transmit electromagnetic energy that starts as light and propagates via “dark plasmons,” according to researchers at Rice University. A new paper in the American Chemical Society journal Nano Letters shows how even disordered collections of nanoparticles in arrays as thin as 150 nanometers can be turned [...]

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High school students test best with 7 hours’ rest

Whether or not you know any high school students that actually get nine hours of sleep each night, that’s what federal guidelines currently prescribe. A new Brigham Young University study found that 16-18 year olds perform better academically when they shave about two hours off that recommendation. “We’re not talking about sleep deprivation,” says study [...]

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Just talk it out

With optimal conversations, young couples thrive

The happiest young couples may be involved in a different kind of engagement. Young adults who easily engage in rewarding conversations with their partners are less likely to hold onto anger and stress and more likely to be satisfied with the relationship, according to research from Kansas State University. Brenda McDaniel, assistant professor of psychology, [...]

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Sweet News About Chocolate

Several recent large-scale research reviews have provided the best evidence yet that chocolate, derived from the seeds of the cocoa tree (Theobroma cacao), is good for your heart. In one review, in the British journal BMJ in August, researchers analyzed data from seven observational studies, which included more than 100,000 people. Those who ate the [...]

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Diamond light, brighter than the sun

Diamond light, brighter than the sun

Imagine that the only thing limiting you is your imagination – that the physical means of achieving what you see in your mind’s eye is right in front of you. That, according to Professor Mark Hodson, is how it is for scientists at the Diamond synchrotron in Oxfordshire. With its curving walls, lined with walkways, [...]

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Researchers generate musical call of 165-million-year-old katydid

Researchers generate musical call of 165-million-year-old katydid

A University of Kansas researcher and scientists from China and the United Kingdom have again played what may be the world’s oldest love song. Click to play. Using an exquisitely preserved mid-Jurassic katydid fossil found in China, the researchers have recreated the insect’s mating call produced by “stridulation” — the rubbing together of musical wing [...]

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This is your brain on games

Philosopher Sun Tzu once wrote that to know oneself and one’s opponent is to ensure victory in 100 battles. University of Alberta psychology researcher Kyle Mathewson’s research shows that the Chinese general may have been on to something. Mathewson and colleagues from the University of Illinois and University of California Berkeley were looking at how the [...]

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Dangerous, but nothing like shark skin

High-tech swimsuits not at all like shark skin

For swimmers looking to gain an edge on the competition, the notion that simply donning a different swimsuit – like a Speedo Fastskin II suit, with a surface purportedly designed to mimic by shark skin – can be the difference between first and last place is a powerful one. It’s also one that’s almost completely [...]

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Fruit flies drawn to the sweet smell of youth

Fruit flies drawn to the sweet smell of youth

Aging takes its toll on sex appeal and now an international team of researchers led by Baylor College of Medicine and the University of Michigan find that in fruit flies, at least, it even diminishes the come-hither effect of the chemicals of love – pheromones. “This is new because we have direct evidence that the [...]

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Growing up on a farm directly affects regulation of the immune system

Grow up on a farm, suffer fewer allergies

Immunological diseases, such as eczema and asthma, are on the increase in westernised society and represent a major challenge for 21st century medicine. A new study has shown, for the first time, that growing up on a farm directly affects the regulation of the immune system and causes a reduction in the immunological responses to [...]

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Can fish oil can help prevent psychiatric disorders?

Researchers at Zucker Hillside Hospital’s Recognition and Prevention (RAP) Program who have worked with teenagers at risk for serious mental illness for the past decade are now studying the effectiveness of Omega 3 fatty acids (fish oil) for treating psychiatric symptoms. This new study is a National Institute of Mental Health-funded randomized double-blind trial that [...]

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A new study provides a possible explanation of mysterious X-ray flares detected by Chandra over the period of several years. It suggests that there is a cloud around Sgr A* containing trillions of asteroids and comets, stripped from their parent stars. The flares occur when asteroids of six miles or larger in radius are consumed by the black hole. The panel on the left shows a very long Chandra observation of the region around the Sgr A*, while the three panels on the right are artist's impressions of the path that a doomed asteroid would take on its way to the black hole.

Milky Way’s black hole grazing on asteroids

The giant black hole at the center of the Milky Way may be vaporizing and devouring asteroids, which could explain the frequent flares observed, according to astronomers using data from NASA’s Chandra X-ray Observatory. For several years Chandra has detected X-ray flares about once a day from the supermassive black hole known as Sagittarius A*, [...]

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Modern, low-energy ammunition can cause deep tissue damage

Gunshot injuries are typically categorized as low- or high-energy based on the weapon’s missile velocity and mass. Typically, low energy injuries are treated with simple wound care, with or without antibiotics, regardless of the presence of a fracture. In contrast, high energy injuries are treated more aggressively. A new study, “Handgun Injuries in 2012: What [...]

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Influx of new faculty changed how math is taught

Fall of Communism changed mathematics in US

The collapse of the Soviet Union in 1992 brought an influx of Soviet mathematicians to U.S. institutions, and those scholars’ differing areas of specialization have changed the way math is studied and taught in this country, according to new research by University of Notre Dame Economist Kirk Doran and a colleague from Harvard. Titled “The [...]

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How stimulants calm hyperactivity

It has long been known that psychostimulant drugs have the paradoxical effect of reducing hyperactivity. [Psychostimulant drugs include methylphenidate – known by the trade names Ritalin, Concerta, and Methylin – and methamphetamine]. Since the mid-1950s, millions of children and adults have been prescribed stimulant medications to control attention deficit hyperactivity disorder (ADHD). But for more [...]

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Coffee grounds can make sewage less stinky

For coffee lovers, the first cup of the morning is one of life’s best aromas. But did you know that the leftover grounds could eliminate one of the worst smells around – sewer gas? In research to develop a novel, eco-friendly filter to remove toxic gases from the air, scientists at The City College of [...]

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Satellite telephony is insecure

Satellite telephony is insecure

Satellite telephony was thought to be secure against eavesdropping. Researchers at the Horst Görtz Institute for IT-Security (HGI) at the Ruhr University Bochum (RUB) have cracked the encryption algorithms of the European Telecommunications Standards Institute (ETSI), which is used globally for satellite telephones, and revealed significant weaknesses. In less than an hour, and with simple [...]

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