5 September, 2007

Smelling mosquito

Biting mosquito

Mosquitoes do not bite everyone; some people are more prone to get bitten, while others are not interesting for mosquitoes. A general saying is that the bitten people are more delicious. Of course, this is ridiculous. Researchers have found specific cells in one of the three organs that make up the mosquitoes nose tuned to […]

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Humans, Nature, Neuroscience
2 September, 2007

Superman, euh… supermouse

Superman, euh… supermouse

By changing the DNA on two places, scientists have developed a super-muscled mouse, with four times the amount of muscle as usual. The protein myostatine was already known to slow down the muscle grow. Animals and humans without this protein develop extra big muscle cords as well as a lot of muscle cords. It is […]

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DNA, Humans, Nature
30 August, 2007

Scuba dive arachnoid

Scuba dive arachnoid

Scientists at the University of Bern, Switzerland, determined that spiders use these scuba tanks, called air bells, as reservoirs, monitoring and replenishing oxygen levels to enable the animals to live underwater. “The water spider’s air bell is in some ways working like an external lung,” said study co-author Michael Taborsky. But it also serves as […]

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Nature
25 August, 2007

Reversed memory

Reversed memory

Directly after a new experience, the brain of a rat plays the new experience backwards. Most likely this rewind-mechanism is being done to record the memory. The discovery has been done by rats while the activity of the brain cells in the hippocampus was been followed constantly. The experiment set-up is an old and famous […]

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Neuroscience
23 August, 2007

Coffee, oh delicious coffee

Coffee, oh delicious coffee

Coffee contains several compounds which are known to affect human body chemistry. For instance caffeine, which acts as a stimulant. The word caffeine is also called guaranine when found in guarana, mateine when found in mate, and theine when found in tea; all these names are considered chemical synonyms for the same chemical compound. Caffeine […]

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Coffee, Drugs, Neuroscience