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Science News Archive April 2014 - Page 5


Page 5 of 32

A water test for the world

A team of McMaster researchers has developed a simple pill that can test water safety using a dissolving breath strip technology. The new method reduces the need for expensive lab equipment and shipping water to the lab, making it potentially life-saving for people in remote areas.

Prehistoric caribou hunting structure discovered beneath Lake Huron

A 9,000-year-old caribou hunting drive lane has been found beneath Lake Huron, revealing distinct seasonal approaches used by Late Paleoindian/Early Archaic caribou hunters. The complex structure, known as Drop 45 Drive Lane, features stone lanes and blinds that suggest a larger cooperating group of individuals was involved in the hunt.

SourceUniversity of Michigan·JournalProceedings of the National Academy of Sciences·DateApr 28, 2014

Flexible battery, no lithium required

Rice University researchers have created a thin-film battery that combines the best qualities of high-energy batteries and supercapacitors, retaining over 76% of its energy capacity after 10,000 charge/discharge cycles. The flexible device has potential for wearable electronics.

SourceRice University·JournalJournal of the American Chemical Society·DateApr 28, 2014

Abuse jeopardizes new mothers' mental health

A Simon Fraser University study has linked intimate partner abuse to postpartum mental health problems in new mothers. The research found that 61% of women experienced mental health symptoms and that different types of abuse were associated with varying levels of postpartum mental health issues.

SourceSimon Fraser University·JournalBMC Pregnancy and Childbirth·DateApr 28, 2014

Fluorescent-based tool reveals how medical nanoparticles biodegrade in real time

Researchers developed a method to measure nanoparticle degradation in real time using Förster resonance energy transfer, enabling undistorted measurements without separating particles from their environment. This can inform the design of safer and more effective nanoparticles for various medical applications.

SourceChildren's Hospital of Philadelphia·JournalProceedings of the National Academy of Sciences·DateApr 28, 2014

The scent of a man

An international team of pain researchers found that male experimenters' scent, caused by pheromones secreted from armpits, can produce a stress response in mice and rats, making them less sensitive to pain. This discovery may contribute to the reliability of rodent research studies.

SourceMcGill University·JournalNature Methods·DateApr 28, 2014

Whitefly confused by cacophony of smells

Biologists at Newcastle University use 'confusion effect' to temporarily disorient whiteflies, reducing their ability to feed on tomato plants. The study suggests a potential new method for sustainable pest control, using harmless plant volatiles to give plants time to defend themselves.

SourceNewcastle University·JournalAgronomy for Sustainable Development·DateApr 28, 2014