News
- Health & Medicine
Breast milk may not be enough
Breast-fed infants need vitamin D supplements, at least in winter.
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Placebo predictions
Giving patients placebo pills for a week before they begin to participate in trials of antidepressants can help clinicians gauge how well they will respond to the actual medication.
- Tech
The ups and downs of routing fluids on chips
A new way to build microscale pipes in three dimensions boosts the sophistication of chips that manipulate fluids to perform chemical reactions and other tasks.
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Unusual tumor is contagious in dogs
A type of cancer in dogs is transferred from animal to animal by exchange of cancer cells.
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Stress rate revised for Vietnam vets
A reanalysis of data from a 1988 study of Vietnam veterans finds that 19 percent developed war-related post-traumatic stress disorder, a smaller proportion than had previously been estimated.
- Chemistry
Protection from poisons
An Alzheimer's disease drug could be protective against the deadly effects of two nerve agents.
- Health & Medicine
Sauna use among dads linked to tumors in children
Men who expose themselves to excessive heat in the weeks before they conceive children may place their future offspring at unnecessary risk of brain cancer.
- Astronomy
Cosmic bigness
Astronomers have found the largest structures ever discovered in the universe.
- Materials Science
Logos to Go: Hydrogel coatings provide removable color
A biodegradable coating could add a temporary splash of color to sports fields, buildings, or even people's bodies.
- Health & Medicine
Origins of Ache: Immune proteins may yield chronic-pain clues
People with chronic pain that has no underlying disease have low concentrations of proteins in the cytokine family that restrain inflammation.
- Chemistry
Tricky Transformation: Bubbling gases tighten, then loosen, the grip of novel molecules on grime
New compounds make oil mix with water, or not, depending simply on which gases are bubbled through the water.
- Anthropology
Evolution’s DNA Difference: Noncoding gene tied to origin of human brain
Investigators have discovered a gene that shows signs of having evolved rapidly in people and of having made a substantial contribution to the emergence of a uniquely human brain.
