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Commensal Bacteria were Shapers of Human Populations

December 16, 2014 2:00 pm | by American Society for Microbiology | News | Comments

Using mathematical modeling, researchers have shown that commensal bacteria that cause problems later in life most likely played a key role in stabilizing early human populations. The finding offers an explanation as to why humans coevolved with microbes that can cause or contribute to cancer, inflammation and degenerative diseases of aging.

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States Move Preemptively Against Powdered Alcohol

December 16, 2014 2:00 pm | by Associated Press, Ivan Moreno | News | Comments

Powdered alcohol hasn't even arrived in stores yet, but states already are moving to ban the product touted by its inventor as an easy way to mix a drink on the go. Colorado is the latest state considering prohibiting "Palcohol" amid concern it will increase underage drinking.

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Teens Use e-Cigs More than Traditional

December 16, 2014 2:00 pm | by Associated Press, Lauran Neergaard | News | Comments

Electronic cigarettes have surpassed traditional smoking in popularity among teens, the government's annual drug use survey finds. Even as tobacco smoking by teens dropped to new lows, use of e-cigarettes reached levels that surprised researchers.

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Yoga Linked to Lower Heart Risk

December 16, 2014 2:00 pm | by European Society of Cardiology | News | Comments

There is promising evidence that the popular mind-body practice of yoga is beneficial in managing and improving the risk factors associated with cardiovascular disease and is a potentially effective therapy for cardiovascular health.

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Timing May Decide Your Snack

December 16, 2014 7:00 am | by Caltech | News | Comments

When you open the refrigerator for a late-night snack, are you more likely to grab a slice of chocolate cake or a bag of carrot sticks? Your ability to exercise self-control may depend upon just how quickly your brain factors healthfulness into a decision.

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All-electric Cars May Be Worse for Environment

December 16, 2014 7:00 am | by Associated Press, Seth Borenstein | News | Comments

People who own all-electric cars where coal generates the power may think they are helping the environment. But, a new study finds their vehicles actually make the air dirtier, worsening global warming. Ethanol isn't so green, either.

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Dental Plaque Sheds Light on Prehistoric Easter Island Diet

December 16, 2014 7:00 am | by Univ. of Otago | News | Comments

Known to its Polynesian inhabitants as Rapa Nui, Easter Island is thought to have been colonized around the 13th Century and is famed for its mysterious large stone statues or moai. A student analyzing dental calculus from ancient teeth is helping resolve the question of what plant foods Easter Islanders relied on before European contact.

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Specially Bred Pig Can Help Study Human Heart

December 16, 2014 7:00 am | by NYU Langone Medical Center | News | Comments

Researchers have developed the first large animal model of an inherited arrhythmic syndrome– an advance that will lead to a better understanding of the biologic mechanisms important in normal heart conduction and rhythm. The novel pig model points the way toward development of better treatments for inherited forms of life-threatening arrhythmias, which are a significant cause of sudden cardiac death.

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Brain Stimulation May Help Anxiety

December 16, 2014 7:00 am | by The Univ. of Western Australia | News | Comments

Researchers have found that brain stimulation may help retrain unhelpful cognitive habits associated with anxiety and depression. The study revealed that around 20 minutes of targeted electrical stimulation to a region of the frontal cortex could dramatically improve the effectiveness of a computer-based task designed to retrain unhelpful patterns of attention that are known to maintain high levels of anxiety.

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Research Yields Biodegradable Food Packaging

December 16, 2014 7:00 am | by Youris.com | Videos | Comments

Nowadays, most of food packaging is derived from petrochemicals and not always biodegradable. Moreover, consumers often find that there is more packaging than content. To address these problems, researchers are producing packaging made from PBS, which is based on vegetable biomass.

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Research Key to 'Valleytronics'

December 16, 2014 7:00 am | by MIT, David Chandler | News | Comments

New findings could provide a pathway toward a kind of two-dimensional microchip that would make use of a characteristic of electrons other than their electrical charge, as in conventional electronics. The new approach is dubbed “valleytronics,” because it makes use of properties of an electron that can be depicted as a pair of deep valleys on a graph of their traits.

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Image of the Week: Rare Weather Fills Grand Canyon with Clouds

December 16, 2014 7:00 am | by Associated Press | News | Comments

A rare weather phenomenon at the Grand Canyon had visitors looking out on a sea of thick clouds just below the rim last week. Cory Mottice of the National Weather Service said the weather event happens about once every several years, though the landmark was treated to one last year.

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MAVEN IDs Links in Chain Leading to Atmospheric Loss

December 15, 2014 2:00 pm | by NASA | News | Comments

Early discoveries by NASA’s newest Mars orbiter are starting to reveal key features about the loss of the planet’s atmosphere to space over time. The observations reveal a new process by which the solar wind can penetrate deep into a planetary atmosphere.

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Researchers Uncover Complex Monkey Dialects

December 15, 2014 2:00 pm | by New York Univ. | News | Comments

A linguistic analysis by a team of scientists has revealed that the same species of monkeys located in separate geographic regions use their alarm calls differently to warn of approaching predators. The study found that monkey calls have a more sophisticated structure than was commonly thought.

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Darwinian Test May Find Bad Drugs Early

December 15, 2014 2:00 pm | by Univ. of Utah | News | Comments

Because of undetected toxicity problems, about a third of prescription drugs approved in the U.S. are withdrawn from the market or require added warning labels limiting their use. An exceptionally sensitive toxicity test could make it possible to uncover more of these dangerous side effects early in pharmaceutical development so that fewer patients are given unsafe drugs.

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