Day: December 29, 2017

Chemists are told how to best brew coffee MOSCOW, 29 Dec — RIA Novosti. Brewing coffee cold process leads to increased concentration of caffeine in the drink. To such conclusion chemists from Thomas Jefferson University in the US, their work publishes Scientific Reports. Scientists have studied four kinds of coffee, comparing the beverages produced by traditional brewing with boiling water and cold method (preparation takes from 10 hours to days in water at room temperature). The study used the grain medium and dark roast, coarse and medium grinding. Comparing the chemical composition of the resulting beverage, the researchers came to the conclusion that when cold brewed, for example coffee, dark roast, and coarse grinding is 1000 milligrams of caffeine per liter of beverage. And when making coffee with boiling water the concentration is no more than 800 milligrams. In addition, chemists found that the concentration of caffeine to achieve these

Disclosed is a method of dealing with addiction from cigarettes Neuroscientists at the University of Rockefeller (NY) has identified a group of neurons in the brain that are sensitive to nicotine, and are involved in the formation of attachment to this substance. The suppression of the activity of these cells leads to a decrease in nicotine dependence, says Science Alert. The study used mice which were exposed to nicotine, dissolved in drinking water. Dependence on this substance are two areas of the brain — the medial (middle) part of the leash and interpeduncular core. In neurons of these structures embedded protein receptors that bind with nicotine, while penetrating into the brain blood flow. It turned out that the chronic effect of nicotine in interpeduncular the nucleus is activated by the accumulation of specific neurons. Under the influence of plant alkaloid on the leash sends the signal to the nucleus that

Scientists explained the strange behavior of people in the queue During observations of people’s behavior in queues in supermarkets, scientists have found that buyers start to behave irrationally and to move between the queues because of a subconscious unwillingness to be the last. Research published in the journal SSRN. “Wavering between the queues are absolute madness, like how many people are behind you, does not affect how fast you will pass one of them. However, this feature of the psyche affects the human behavior. As a rule, the penultimate person is contented approximately the last 20%,” — said the representative of Harvard University (USA) Ryan Buell. Also Harvard researchers conducted an experiment in which he asked volunteers to go minute test, which you need to survive in a virtual electronic queue. While they had the opportunity to go to another “place”. It turned out that the people who are in