Uncategorized
- Health & Medicine
Blood hints at autism’s source
A new biochemical profile in blood may lead to earlier diagnosis of autism and a better understanding of its genetic causes.
- Health & Medicine
Viagra might rescue risky pregnancies
Viagra shows promise for limiting threats of fetal loss from preeclampsia, a type of high blood pressure that frequently occurs during pregnancy.
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19541
Research results on the physiological effects of blue light 1.5 hours before bedtime makes me wonder about the effects on sleep and, subsequently, mood and metabolism for the millions of us who spend hours each night staring into two sources of blue light, the television and the computer screen. Jill HolmgrenFairbanks, Alaska
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Blue light keeps night owls going
A study of nine young men suggests that blue light is more effective than yellow at beating back sleepiness and muting key physiological changes that normally occur in late evening.
- Planetary Science
A moon with atmosphere
Magnetic measurements by the Cassini spacecraft have revealed that Saturn's moon Enceladus has a tenuous atmosphere containing water vapor.
- Earth
Blowflies shed mercury at maturity
Blowflies that absorb mercury from fish carcasses they feed on as larvae rid themselves of much of that toxic metal when they become adults.
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19540
This article gives the casual reader the distorted view that one could travel the solar system at will by using these methods. These are generally small perturbations on the much larger primary propulsion requirement that is fixed by standard two-body orbital mechanics. John OldsonSan Diego, Calif. In the course of its eccentric orbit, the moon […]
- Math
Navigating Celestial Currents
Mathematicians are creating an atlas of solar system highways along which spacecraft can coast using no fuel.
- Health & Medicine
The Race to Prescribe
Race-based medicine could be a stepping-stone to the higher goal of targeting medicines toward the genetics of individual patients, but some researchers are troubled by the implications of practicing medicine according to patients' racial identities.
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- Humans
From the April 6, 1935, issue
Early cherry blossoms in Washington, D.C., nebulae as remnants of exploded stars, and 6,000-year-old leftovers.
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Inner Tube of Life
Science magazine presents a striking portrait of the human gut in a special collection of articles and features devoted to the flora, development, immunology, diseases, and more of this remarkable, 10-foot-long tube. The Web pages include an interactive poster displaying the gut in all its glory. Requires free registration. Go to: http://www.sciencemag.org/sciext/gut/
