Chemists have found ideal conditions for the hydrogen borrowing reaction

Chemists from Russia studied the hydrogen borrowing reaction necessary for the formation of carbon-nitrogen bonds. They found that it often does not require a catalyst at all, and also developed recommendations for successfully carrying out the reaction in the laboratory. The study was published in the journal Journal of Catalysis. Organic compounds containing an NH… Continue reading Chemists have found ideal conditions for the hydrogen borrowing reaction

Watering with ethyl alcohol protected the rhizome from drought

Japanese geneticists have proposed increasing the drought resistance of plants using ethanol. They watered Tal's rhizomes (Arabidopsis thaliana) with a weak alcohol solution for three days and showed that this helped the plants survive the subsequent three-week drought. In response to alcohol, the plant activates the synthesis of the stress phytohormone, abscisic acid, which helps… Continue reading Watering with ethyl alcohol protected the rhizome from drought

Perseverance discovered volcanic rocks instead of sedimentary ones in Jezero Crater

The Perseverance rover discovered volcanic rocks in the Jezero Crater. This contradicts the expectations of scientists who expected to see sedimentary deposits. Their absence may indicate that the lake at this place disappeared too quickly, and sedimentary rocks did not have time to form. Two articles (1 and 2) devoted to the results of Perseverance‚Äôs… Continue reading Perseverance discovered volcanic rocks instead of sedimentary ones in Jezero Crater

Machine learning predicts the thickness of lead's neutron skin

Physicists have calculated the thickness of the neutron shell in the core of the lead-208 isotope – it is in the range from 0.14 to 0.20 femtometers. To do this, scientists combined calculations from first principles, statistical methods and machine learning. This scheme works faster than direct simulations and in the future it can be… Continue reading Machine learning predicts the thickness of lead's neutron skin

Found inner charm in proton

The NNPDF collaboration of European theorists reported the results of a search for the internal charm of the proton using a large array of experimental data. According to their results, charm quarks can consistently transfer up to one percent of the proton's momentum with a confidence of three standard deviations. The study was published in… Continue reading Found inner charm in proton

Due to global warming, viviparous lizards began to age before birth

Zoologists have discovered that heat stress associated with global warming shortens telomeres in female viviparous lizards that inhabit the mountains of southern France. As a result, their young are also born with shorter telomeres, which reduces their survival rate and ultimately leads to the extinction of entire populations. As noted in the magazine article Proceedings… Continue reading Due to global warming, viviparous lizards began to age before birth

Chinese chemists simulated the filtration of smoke from an ancient goose lamp

Chinese chemical technologists have discovered that an ancient oil goose lamp could filter combustion smoke and reduce indoor air pollution. The design of the lamp makes it possible to reduce by almost 17 percent the amount of smoke entering the room when burning oil. The study was published in PNAS. The painted bronze lamp was… Continue reading Chinese chemists simulated the filtration of smoke from an ancient goose lamp

35 Chinese people became infected with the new henipavirus in two years

RNA was detected in 35 residents of China's eastern provinces who complained of fever Langya henipavirus – a virus from the henipavirus genus. In addition to fever, patients were bothered by cough and muscle pain, and a third of patients developed liver dysfunction. Doctors suspect that shrews are the natural reservoir of the virus, and… Continue reading 35 Chinese people became infected with the new henipavirus in two years

Embark taught an unmanned truck to present documents to police

The American company Embark showed tests of a system for interaction between an unmanned truck and the police. The car can recognize a police vehicle with flashing lights behind it and stop, and after the police officer approaches the truck, he can ask a remote operator for the code to the safe and retrieve documents… Continue reading Embark taught an unmanned truck to present documents to police

Chilean ignimbrites explain the behavior of supervolcanoes before eruptions

British and American geologists studied the rocks of the Chilean supervolcano Oxaya and developed a model of the behavior of such volcanoes before eruptions. The ages of zircons and sanidines from the Miocene ignimbrites indicated a gap of 4.6 million years between the onset of magma emplacement into the crust and the first Oxaya supereruption.… Continue reading Chilean ignimbrites explain the behavior of supervolcanoes before eruptions