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The Chinese have helped build more than 300 dams in Africa, like this one on the Congo River. Reuters

China’s economic slowdown threatens African progress

China’s economy has continued to slow despite efforts by its leaders to give it a boost, which is very bad news for an increasingly dependent Africa.
Not dark enough. People in bed via www.shutterstock.com.

Are we sleep-deprived or just darkness-deprived?

Is electricity making us sleep less? A new study on sleep in preindustrial societies suggests the answer is no. But it misses a big point: people in preindustrial societies spend more time in darkness than we do.
The best choice? IV via www.shutterstock.com.

Is your doctor choosing the right IV?

Research on IV devices is underdeveloped, underfunded and understudied. That means doctors don’t always have the information they need to choose the best one for their patients.
Justin Trudeau displaced Stephen Harper, an avowed friend of the fossil fuel industry, as Canada’s prime minister. Chris Wattie/Reuters

Is lagging on climate change a political liability?

Two politicians known to oppose action on climate change – Canada’s Stephen Harper and Australia’s Tony Abbott – have been displaced. What does this say about climate as a voter issue?
Aluminum cans are among the most valuable items to recycle. ableman/flickr

Are we recycling too much of our trash?

As municipalities push for more recycling, one study of Japan found that low rates deliver the most benefits and that certain materials, notably aluminum and paper, are most valuable.
There’s a reason they call them ‘impulse purchases.’ frankieleon/Flickr

The dark side of free markets

While free markets have delivered benefits, they also prey on our weaknesses, tempting us to buy things that are bad for us, be it sweet candy or sour investments.
How much do hiring decisions in academia factor in the gender of the applicant? Files image via www.shutterstock.com.

Women preferred for STEM professorships – as long as they’re equal to or better than male candidates

Previous research found a preference in academia for hiring stellar female candidates over stellar male candidates for STEM jobs. A new study investigated what happens if applicants aren’t as evenly matched.