Researchers, using micro-computed tomography systems, have shed new light on the way bats echolocate. With echolocation, animals emit sounds and then listen to the reflected echoes of those sounds to form images of their surroundings in their brains.
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Ganymede’s and Callisto’s evolutionary paths diverged about 3.8 billion years ago during the Late Heavy Bombardment.
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Researchers who last year genetically engineered bacteria to keep track of time by turning on and off fluorescent proteins within their cells have taken another step toward the construction of a programmable genetic sensor. The scientists recently synchronized these bacterial “genetic clocks” to blink in unison and engineered the bacterial genes to alter their blinking rates when environmental conditions change.
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Scientists have managed to obtain 3-D images of the vesicles and filaments involved in communication between neurons. The method is based on a novel technique in electron microscopy, which cools cells so quickly that their biological structures can be frozen while fully active.
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A new study offers intriguing insights into the biology of human running speed. The study identifies the critical variable imposing the biological limit to running speed, and projects how the biological limits might be pushed beyond speeds achieved by Usain Bolt to perhaps 35 or even 40 miles per hour, said study authors.
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The Advanced Technology Solar Telescope will be the world’s flagship facility for the study of magnetic phenomena in the solar atmosphere.
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Reducing salt in the American diet by as little as one-half teaspoon per day could prevent nearly 100,000 heart attacks and 92,000 deaths each year, according to researchers.
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The dark rock dubbed Marquette Island is providing a better understanding of the mineral and chemical makeup of the martian interior.
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Deep within the Kairei Indian hydrothermal vent field, two-and-one-half miles below the central Indian Ocean, scientists have discovered a gastropod mollusk, whose armor could improve load-bearing and protective materials in everything from aircraft hulls to sports equipment.
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Scientists are taking suggestions on where to image the Red Planet using NASA satellite.
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A team of scientists has documented that Yasuni National Park, in the core of the Ecuadorian Amazon, shatters world records for a wide array of plant and animal groups, from amphibians to trees to insects. The authors also conclude that proposed oil development projects represent the greatest threat to Yasuni and its biodiversity.
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Surgeons have demonstrated that artificial muscles can restore the ability of patients with facial paralysis to blink, a development that could benefit the thousands of people each year who no longer are able to close their eyelids due to combat-related injuries, stroke, nerve injury or facial surgery.
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An increase in the variability of local conditions could do more to harm biodiversity than slower shifts in climate, a new study has found.
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