Heterogeneous catalyst reduces the cost of synthesis of cyclic polymers

Chemists from the USA, South Korea, Hungary and Switzerland have developed a heterogeneous ruthenium-based catalyst for the synthesis of cyclic polymers from cyclopentene. They also managed to come up with a reaction installation that makes it easy to separate the catalyst from the reaction products. The study was published in Nature Chemistry. Linear polymers containing… Continue reading Heterogeneous catalyst reduces the cost of synthesis of cyclic polymers

Ozonation of the air caused the skin to create an oxidative field around a person

Chemists from Germany, the USA and Denmark have found that substances secreted by human skin lead to the formation of an oxidative field around it. Scientists placed four people in a sealed mock-up office and began ozonizing the air to a level close to the maximum permissible concentrations. The experiment showed that ozone interacts with… Continue reading Ozonation of the air caused the skin to create an oxidative field around a person

Short breaks during the day helped workers cope with fatigue

Small breaks during the workday help you feel more alert, less tired and more productive. This was found by Romanian psychologists who conducted a meta-analysis of 22 studies published over the past 30 years. Article published in the magazine PLoS ONE. In modern culture, work and personal space no longer have clear boundaries, and more… Continue reading Short breaks during the day helped workers cope with fatigue

Psilocybin and psychotherapy reduced cravings for alcohol

A double-blind, randomized clinical trial conducted in the United States found that psychotherapy with two doses of high-dose psilocybin significantly reduced drinking in alcohol-dependent patients for at least 32 weeks. The work report was published in JAMA Psychiatry. The potential benefits of psychedelics for the psychotherapy of alcohol dependence syndrome were indicated half a century… Continue reading Psilocybin and psychotherapy reduced cravings for alcohol

Butyrate saved mice from peanut allergies

Butyrate, which is produced by the intestinal bacteria Clostridium, may help people with severe peanut allergies. This was discovered by scientists who introduced polymer micelles with butyrate into the intestines of mice and relieved them of allergies. The authors believe that such micelles can also help with reactions to other food proteins. A preprint of… Continue reading Butyrate saved mice from peanut allergies

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

Ancient people began drinking milk long before lactose tolerance developed.

Biologists conducted a study of fat residues on 13,181 fragments of ceramics from 554 archaeological sites and found that already in the early Neolithic (about 7000 BC), the first cattle breeders in Europe consumed milk. Moreover, other European populations did so as they transitioned to food production, long before the spread of the allele associated… Continue reading Ancient people began drinking milk long before lactose tolerance developed.

The neural network determined the species of swatted mosquitoes

Malay biologists have created an algorithm that determines the species of a mosquito swatted on human skin. Its accuracy is about 80 percent. As noted in the magazine article Scientific Data, the algorithm could form the basis of a smartphone application. With its help, anyone can not only find out who bit them, but also… Continue reading The neural network determined the species of swatted mosquitoes

Physicists have taught random lasers to assemble on demand

British physicists have demonstrated a technology for self-assembly of colloidal particles into structures capable of random laser generation. The peculiarity of this approach is that random lasers appear and disappear around additional composite (Janus) particles, depending on whether their thermal pumping is turned on. The correct arrangement of several such Janus particles allows you to… Continue reading Physicists have taught random lasers to assemble on demand

Monkeypox has reached Russia

Monkeypox has reached Russia. The country's first case of this disease was identified in a resident of St. Petersburg, who recently returned from Europe. He is now in isolation in the hospital, and his illness is mild. As noted in a press release from Rospotrebnadzor, the risk of further spread of monkeypox in Russia is… Continue reading Monkeypox has reached Russia