From Molecules to Organisms: Structures and Processes
- Health & Medicine
Simple test for cancer and heart disease
Disease diagnosis often requires expensive equipment and tests to probe deep inside the body. But a new test relies on a fast, cheap and easy technique. And its answers appear on a strip of paper — just as they do on a pregnancy test.
- Earth
Intel STS finalist brings earthworms to the big time
Earthworms and charcoal help plants resist infections, according to research by Anne Merrill, a finalist in the 2014 Intel Science Talent Search.
- Brain
Mapping the brain’s highways
A new map may explain why some brain injuries are worse than others. Even relatively minor injuries that disrupt message superhighways may have a more devastating impact than some seemingly catastrophic injuries.
- Animals
Dissecting the dog paddle
Scientists occasionally describe the dog paddle as a “trot,” but that’s not right. When dogs swim, their complicated leg motions look more like a frantic run.
- Life
Caught in the act
Scientists observe some evolutionary speed demons as they adapt over the course of just a few years to new environmental conditions.
- Brain
‘Study drugs’ can be dangerous
The misuse of these ADHD medicines not only constitutes cheating, but they can become addictive and can mess with your head.
- Health & Medicine
Explainer: The teenage body clock
Around puberty, a change in the body clock of adolescents and teens makes it hard for them to fall asleep as early as they used to.
- Brain
Respecting the body’s clocks
Daily rhythms affect everything from the time we wake to how well we perform in sports.
- Life
Explainer: What is a stem cell?
Special cells have ability to turn into several different types
- Brain
Explainer: Our bodies’ internal clocks
Biological clocks determine hunger, sleepiness and other daily rhythms.
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- Brain
The teenage brain
Adolescence triggers brain — and behavioral — changes that few kids or adults understand.
