Scientists from the University of Pennsylvania found that the shape of the nose in different human populations is the result of the influence of climatic conditions. Article researchers published in the journal PLOS Genetics.
Experts have analyzed the size and shape of the nose of people living in West Africa, South Asia and Northern Europe. They found that the difference in these indicators among the studied populations was too big to it could be explained by chance. In addition, wide nostrils were characteristic of those people whose ancestors lived in hot environments, with high content of water vapor in the air.
However, the researchers suggest that additional factors such as cultural preferences when choosing a partner, also played a role in the formation of the nose. In addition, the importance and genetic drift — a phenomenon in which randomly changes the frequency alleles one or more genes.
In the future scientists want to find out, does the shape of the nose and size of nasal cavity on the risk of infection by pathogens of respiratory infections when the person for a long time in conditions that differ from those in which their ancestors lived.
An international team of scientists have named the main ways to prevent the elderly dementia (acquired dementia). Experts suggest to pay attention to education, physical activity, blood pressure and hearing. The related report published in the journal The Lancet.
Company Ilona Mask for drilling The tunnel Boring Company received verbal approval from the government for the construction of the tunnel. According to him, the tunnel will connect the centers of cities. In addition, in each of the cities will be a dozen entrances and exits. Work on the tunnel will run parallel to the project in Los Angeles.
The owner of the YouTube channel, Hydraulic Press Channel compared the strength of the new and old versions of Nokia 3310 with a hydraulic press. He secured mobile devices on different halves of the press, to compare which of them will suffer. In the result, both machines were badly damaged.
The former defender of "Barcelona" Victor Alvarez was the player of the Tula "Arsenal". Contract 24-year-old Spaniard with Arsenal for two years. Financial terms of the agreement are not reported. Alvarez began his career at Barcelona, where in 2007 he moved to Espanyol.
The Committee to protect journalists (CPJ) called on the Russian authorities to investigate the attack on the house of the journalist Yulia Latynina. "We urge the Russian authorities to take seriously this attack on Yulia Latynina and provide her the opportunity to live and work in security," said the organization.
Live American news agencies Newsfeed gathered at screens more than 18 million people. The stream received more than 380 thousand posts and 290 thousand comments of users who actively encouraged everyone to believe in the second coming of Jesus Christ. The video was looped not comfortable with voice input.