Uncategorized
- Health & Medicine
Dietary stress may compromise bones
Internal conflict about what and how much to eat not only induces production of a stress hormone but also may eventually weaken bones.
- Health & Medicine
Raloxifene doesn’t hike breast density
Estrogen-replacement therapy that includes estrogen increases breast-tissue density among postmenopausal women, but the estrogen-replacement drug raloxifene doesn’t.
- Earth
Pinning Down the Sun-Climate Connection
Many scientists propose that changes in the sun's magnetic field and radiation output during its 11-year sunspot cycle also affect the atmosphere, changing Earth's climate by steering weather systems and influencing the amount of cloud cover.
- Physics
Magnetic Whispers
Promising new ways to magnetically probe tissues and substances are emerging now that a small research group has proved their once-ridiculed claim of a flaw in the 50-year-old theory behind magnetic resonance imaging (MRI) and similar analytic techniques.
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I enjoy your well-written articles, obviously by individuals who are not only proficient in their fields, but who also have great verbal skills and an excellent grasp of the English language. Therefore, it was with a great deal of surprise and dismay that I read the revolting title “Flood’s rising? Quick, start peeing!” Helen Burkin […]
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Flood’s rising? Quick, start peeing!
Malaysian ants that nest in giant bamboo fight floods by sipping from water rising inside and then dashing outdoors to pee.
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Warblers make species in a ring
Genetic and song analyses of the greenish warblers in forests around the Tibetan Plateau suggest the birds represent a long-sought evolutionary quirk called a ring species.
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Brain takes emotional sides for sexes
Men's and women's brains may adopt different approaches to fostering memories of emotional experiences.
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When diabetics dismiss their treatment
Diabetics who retreat from close relationships in favor of self-reliance may have particular difficulty adhering to diabetes treatments if their physician communicates poorly with them.
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Diesel gases masculinize fetal rodents
In rats, exposure to diesel exhaust perturbs pregnant moms’ sex-hormone production and makes her pups more masculine in certain ways.
- Tech
Simple system may curb auto emissions
Researchers have developed a four-component system that acts like an on-vehicle oil refinery and may help significantly reduce the hydrocarbon emissions from internal combustion engines.
- Astronomy
Peering at black holes: An eventful look
Two new studies provide supporting evidence for event horizons, the one-way membranes that surround black holes.
