Uncategorized
- Chemistry
Mimicking the Best of Nature’s Binders: New technique produces artificial receptors
Scientists have devised a new way to make artificial receptors that differentiate among similar molecules.
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19023
This article advances the idea that a positive attitude is conducive to longevity. As a senior citizen, 87, looking at my contemporaries, I wonder about that. Possibly, the good health prompted the positive attitude as much as the attitude influenced the health. Wayne LewisGate, Okla. While the researchers accounted for some confounding factors, they did […]
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Staying Alive with Attitude: Beliefs about aging sway seniors’ survival
In a small Ohio town, people aged 50 and over who reported a positive outlook on aging lived about 7½ years longer than those who held negative views about getting older.
- Earth
A Stinging Forecast: Model predicts chance of encountering jellyfish
Weather forecasters usually prognosticate precipitation, pollen, and poor air quality, but in some areas, they could soon provide beachgoers with the probability of confronting a jellyfish.
- Astronomy
Moveable Feast: Milky Way dines on its neighbors
Astronomers have found new evidence that the Milky Way is a cannibal, devouring streams of stars from its nearest galactic neighbors.
- Paleontology
Bone Crushers: Teeth reveal changing times in the Pleistocene
Tooth-fracture incidence among dire wolves in the fossil record can indicate how much bone the carnivores crunched and, therefore, something about the ecology of their time.
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19090
A pet dog doesn’t have to be hungry to enjoy chewing on a bone. Perhaps dire wolves did enjoy a “glorious paradise” 15,000 years ago. Without other predators to chase them away from a kill, they had more leisure time to hang about and chew the bone. Matt FenskeSpokane, Wash. From 15,000 to 12,000 years […]
- Physics
Law and Disorder: Chance fluctuations can rule the nanorealm
A tug-of-war in a water droplet demonstrates that random fluctuations wield more than enough muscle to give nanoscale machines trouble.
- Health & Medicine
Heart damage tied to immune reaction
Researchers in Brazil have identified immune proteins that flood the heart tissues of many people with Chagas disease, suggesting a cause of this deadly complication of the parasitic tropical disease.
- Astronomy
Pluto or bust?
A new National Research Council report may revive plans to send a spacecraft to explore Pluto and its neighborhood.
- Paleontology
Unknown creature made birdlike tracks
Paleontologists have found a multitude of birdlike footprints left by a yet undiscovered creature in rocks more than 60 million years older than Archaeopteryx, the first bird to have left fossils of its body parts.
- Health & Medicine
Gene might contribute to asthma risk
Variations in a gene called ADAM33 may predispose a person to asthma.
