All Stories
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19342
In your article on experimental hints of a new subatomic particle, three values are quoted for a particular charge-parity violation, all with error bar. Given the large uncertainties in two of these, the three are undistinguishable. Yet you claim that they “don’t agree.” Does no one look at error bars any more? R.A. WilliamsLos Alamos, […]
- Physics
Particle decays hint at new matter
A surprising disagreement between particle-physics theory and a Japan-based research team's measurement of decay rates of matter and antimatter hints that unknown, heavy subatomic particles may exist.
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Widows show third-year rebound
Women whose husbands die largely overcome their grief-related problems, including depression and social isolation, by about 3 years after their loss, according to a national study.
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The Body Electric
An electric field inside an embryo may tell it whether to place an internal organ on its left or right side.
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18897
It’s very appealing to think that a noninvasive test could pick up the earliest signs of cancers or cardiovascular disease. Despite passionate testimonials of how whole-body CT scanning “saved my life,” we don’t know what the tumors found really would have done. We don’t know that these patients’ lives were improved, much less saved. In […]
- Health & Medicine
To Your Health?
Doctors are divided on whether the value of screening the torso with X-rays to find symptomless disease outweighs the costs.
- Chemistry
Germ-killing plastic wrap
Scientists have developed biodegradable plastics that release natural germ-killing agents onto the foods wrapped inside.
- Chemistry
Toxic runoff from plastic mulch
Pesticide runoff from tomato fields covered with sheets of plastic can kill fish, clams, and other aquatic life.
- Chemistry
New solution for kitchen germs
Acidic electrolyzed water appears to kill foodborne germs more effectively than a bath of dilute bleach.
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19349
The heading of this article should have been “The body generates a feeling of the brain.” The whole idea of Antonio R. Damasio’s theory is that bodily reactions precede brain awareness or a person’s awareness of a specific emotion. William Fudge Dania, Fla. Damasio’s theory is that the brain interprets bodily reactions linked to emotions […]
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Brains generate a body of feeling
Happiness, sadness, and other basic emotions activate unique networks of brain areas that track the body's internal status.
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Abused kids lose emotional bearings
Physical abuse and neglect appear to undermine preschoolers' emotional development in different ways.
