Reporting in Science, Gabriel Villar and colleagues have turned tiny water droplets into cooperating networks that can pass electrical signals and do mechanical work. Villar says that in theory, water droplet networks could be used as artificial tissues.
Surveys show a marked rise in the diagnosis of attention deficit hyperactivity disorder, or ADHD, among the nation's youth. William Graf, a professor of pediatrics and neurology at Yale School of Medicine, discusses the surge in ADHD diagnosis and its potential implications.
President Obama's announcement this week that he's launching a brain initiative generated widespread and enthusiastic media coverage. Researchers, however, are suggesting the initiative has more to do with politics and public relations than research.
In research published in the Proceedings of the National Academy of Sciences, scientists found brain scans can predict with startling accuracy the likelihood that criminals will run afoul of the law again. The results require serious legal and ethical debate before being introduced into the criminal justice system. David Greene talks to Kent Kiehl, a professor of psychology at the University of New Mexicow, and lead author of this mind research study.
Some of the tiniest critters inside the harsh, otherwordly vents at the bottom of sea are unlike almost anything on Earth. They don't need oxygen to thrive — they can use rocket fuel. The discovery is a hint that our planet's first microbes probably sucked up whatever chemicals they could to survive.
Philosophers, poets and psychologists have long shared a fascination with dreams. Now Japanese scientists have scanned the brains of dreaming volunteers to create a lexicon of imagery that can be used to detect and decode dreams while a person sleeps.
More than half of the nation's pipelines were built before 1970. In fact, ExxonMobil's Pegasus pipeline, which burst Friday in Mayflower, Ark., is 65 years old. According to federal statistics, pipelines have on average 280 significant spills a year. Most aren't big enough to make headlines.
The finding could be a milestone in the decades-long search for the universe's missing material. But some scientists urge caution, saying it's possible the particles seen by the sensor on the International Space Station could have come from somewhere else.
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