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Bias adds an extra hurdle for women entrepreneurs

Stereotypical beliefs about men’s and women’s traits and abilities get in the way of women’s entrepreneurship, new research finds.

In 2011, 1 in 10 high school seniors used ‘Spice’

Synthetic marijuana is touted as a safe legal alternative to illicit drugs, but its use was linked to 11,561 reports of poisonings in the United States between January 2009 and April 2012.

Low glucose ‘delivery’ may intensify Alzheimer’s

A deficiency in the protein that moves glucose across the brain’s protective blood-brain barrier appears to intensify the neurodegenerative effects of Alzheimer’s disease.

Did drought in Syria fuel the 2011 uprising?

Extreme weather can boost the chances of violence, experts say, including individual attacks and full-scale wars.

Smokers want more respect from doctors

A recent study reports patients’ perspectives on being a smoker and trying to quit. It’s one of the first efforts to ask seemingly simple but important questions, such as: “What do patients who smoke want and need from their physicians?

Could NYC rats be a harbor for the plague?

Rats in New York City carry a species of flea that is capable of transmitting plague pathogens. For a new study, researchers collected more than 6,500 specimens of five well-known species of fleas, lice, and mites from 133 rats.

Here’s a blueprint for life on Saturn’s moon

Using both science and imagination, chemical engineers and astronomers have come up with a template for life on Titan, the giant moon of Saturn.

Over 900 hookworm genes ‘turn on’ to wreak havoc

Tiny parasitic hookworms infect nearly half a billion people worldwide, almost exclusively in developing countries.

Can these neurons ‘hide’ synapses in the brain?

A new study finds that a specific type of neuron temporarily cloaks the synapses that link a wide field of neurons.

Can meditation bring relief to sleepy seniors?

Half of adults older than 55 have trouble getting to or staying asleep. Researchers were surprised to discover the best way for them to get some much needed shut-eye.

Cats suggest drug may treat ‘childhood Alzheimer’s’

A compound that’s effective for cats with a version of Niemann Pick Disease, or NPC, is safe enough to be tested in children with the disease, say researchers.

Facebook adds lifelines to prevent suicide

In addition to vacation photos and cat videos, people also share details about their personal lives and feelings on Facebook—including occasional posts about despair and even thoughts of suicide.

Emperor penguins dwindled during last ice age

Antarctica’s current climate is optimal for emperor penguins, but harsh conditions in the ancient past may have been too extreme for large populations to survive.

Crowdsourcing can say if speech therapy works

Crowdsourcing can be a cheap, unbiased way to determine if patients with speech disorders are pronouncing sounds correctly, report researchers.

Depression makes the sting of rejection linger

The pain of social rejection lasts longer for people who are depressed because their brain cells release less natural opioids, a pain and stress-reducing chemical, a new study shows.

Moral views about organ sales can change

Evidence about the practical costs and benefits of our deeply held moral beliefs can sway what seemed like rigid opinions, report economists.

Mystery solved: How Plavix breaks up clots

Researchers have identified a protein that is critical to the success of Plavix, a drug that stops blood clots from forming during a heart attack.

Preventing 1 case of HIV could save $338,400

Preventing just one person at high risk from contracting HIV could save from $229,800 to $338,400, depending on the continuity of treatment.

Bluebird moms can make competitive sons

Female bluebirds can produce more or less competitive sons by influencing the amounts of hormones in their eggs, say biologists.

How tiny wires trap a ‘tornado’

Wires only a billionth as thick as a human hair may help keep the “super” in superconductivity. Superconductors are materials that, at low temperatures, can carry electric current without the wasteful loss of energy caused by resistance.