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Inflatable gloves

11.09.2000

One of the Canadian firms has started production of inflatable gloves for those who work with pneumatic hammers and vibration tools.

On the wrist of the glove there is a pump in the form of a small rubber bubble with a valve. After 50-60 pressures on the bladder, the air chambers in the glove inflate and absorb 40 to 60 percent of the vibrations.

During the day, you have to do a few more pressures on the pump to compensate for leaks.

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Revealed the secret of dog friendliness 27.07.2017

Scientists from Oregon and Princeton jointly figured out the genetic basis of the friendliness of domestic dogs.

At the first stage, the authors compared the behavior of 18 different domestic dogs - both purebred and half-breeds - and 10 wolves living in captivity and raised by people in close contact with them (in one of the research institutes located in Indiana, USA). It turned out that dogs are much friendlier than wolves, even "domestic" ones.

After that, Udell and von Holdt turned their attention to people with Williams syndrome - a hereditary disease that is expressed in an "elven" face and partial mental retardation, but with increased friendliness and sociability. This is caused by a deletion (disappearance) of a section of the 7th chromosome, and the more changes there are, the more pronounced this syndrome is in humans.

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It turned out that in dogs in general this area is more variable than in wolves. And the more significant the changes in it, the friendlier the dog.

This study is important because although we have learned a lot about dogs recently - for example, that they are able to perceive speech and have episodic memory - the genetic basis of these abilities is still largely unexplored. Meanwhile, it can have important consequences, including applied ones.

This work shows that the genetics of dog behavior may be even more relevant to the genetics of human behavior than previously thought.

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