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Science, Medicine and Technology

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"We're now screening for compounds that interact with these receptors," Carlson said. "Compounds that jam these receptors could impair the ability of mosquitoes to find us. Compounds that excite some of these receptors could help lure mosquitoes

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arclein

British anthropologist Robin Dunbar says human beings can have no more than 150 friends – that’s the upper limit the brain can absorb. His conclusion comes from studying the social group size of monkeys and apes and how that size might relate to the

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arclein

High-speed winds in the area beneath the hole have led to the formation of brighter summertime clouds, which reflect more of the sun's powerful rays. "Thes

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arclein

The study ruled out both fitness and dietary influences. In fact, to their amazement, the researchers found a third of the group were either life-long heavy smokers or were obese. I

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LiveScience

Scientists have discovered the female sex hormone progesterone in a walnut tree, shaking up what's known about the different between plants and animals. Until now, scientists thought that only animals could make progesterone. A steroid hormone sec

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arclein

Two new ultra-hard types of diamond have been found in a meteorite from Finland. · The ultra-hard carbon crystals were created out of graphite under the intense heat and pressure of the meteorite impact. ·

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arclein

Just 25 per cent of the pigs receiving only saline survived for 4 hours - the typical time it takes to get hospital treatment - while 86 per cent of those injected with valproic acid survived. All those that had a blood transfusion lived

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arclein

Because the battery is made by using printing technology, it can be reduced in thickness, increased in area and laminated. Furthermore, when combined with a roll-to-roll production method, its costs can be reduced, AMIC said.

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arclein

Calcium hydride is chosen due to its ability to be broken apart using a thermal heat source, such as the sun. Calcium hydride provides up to 0.90 kW-hr/kg of heat when it converts to calcium and hydrogen. Hydrogen is stored in a separate low tem

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arclein

The glass binds with gasoline and other pollutants containing volatile organic compounds but it does not bind with water, so it acts like a “smart” sponge, capable of picking and choosing from contaminated groundwater.

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LiveScience

Humans could run as fast 40 mph, a new study suggests. Such a feat (npi?) would leave in the dust the world's fastest runner, Usain Bolt, who has clocked nearly 28 mph in the 100-meter sprint. Researchers took a new look at what limits human speed.

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LiveScience

Like your shoelaces or electrical cords, light can get twisted into knots. Now, scientists have used a computer-controlled hologram and theoretical physics to turn a light beam into pretzel-like shapes with implications for future laser devices,

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PopSci

Ever since the first caveman ran through an adversary with a pointy stick, battlefield medicine has wrestled with the problem of blood loss from cutting and penetration. And while tourniquets can stop blood loss from an extremity, little can be done

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arclein

If this proves true, then the team has opened a promising potential path to an Alzheimer's treatment that could block the onset of the mild cognitive impairment associated with early Alzheimer's. I

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n the year the NRC report reached print, a Nature paper reported a breakthrough-level development, “DNA origami”. This technology opened the door to systematic, atomically precise engineering on a scale of hundreds of nanometers and millions of atoms

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Wired

Shaped like a leaf itself, the slug Elysia chlorotica has a reputation for kidnapping the photosynthesizing organelles and some genes from algae. The slug has acquired enough stolen goods to make an entire plant chemical-making pathway work inside an

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arclein

Large amounts of young salmon , smolts, are therefore released into rivers and streams. However, conventionally raised fish seem to have problems adapting to their natural environment. The reason for this has not been clear, but researchers at the Un

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