Poor protein utilization contributes to neurodegeneration

Neurodegeneration can occur more quickly if nerve cells lack retromer proteins, which are responsible for breaking down toxic tau protein. This conclusion was reached by scientists who observed genetically modified fruit flies that produced human tau protein in 39 neurons of the eye. Tau protein itself already caused the death of nerve cells, and the… Continue reading Poor protein utilization contributes to neurodegeneration

Physicists have proven the importance of the mesoscale for quantum phase transitions

Low-temperature phase transitions in ferromagnets are characterized by destruction of the domain structure. In an article in Nature physicists write that for a theoretical description of the dynamics of such transitions, it is necessary to take into account not only microscopic, but also mesoscale symmetry. This discovery indicates the possibility of the existence of non-classical… Continue reading Physicists have proven the importance of the mesoscale for quantum phase transitions

Hormone injections improve cognitive performance in Down syndrome

Injections of a hormone from the hypothalamus, which is responsible for the development of the genital organs and is commonly used to treat infertility, have been able to improve cognitive performance in people with Down syndrome. This was discovered by European scientists who conducted a study on seven young men. After six months of living… Continue reading Hormone injections improve cognitive performance in Down syndrome

Daily inhalation of laughing gas left the patient unable to walk

American doctors described in The New England Journal of Medicine rare medical case. A patient was admitted to the hospital with symptoms of severe vitamin B deficiency.12 – impaired sensitivity and coordination of movements, up to the inability to walk. It turned out that over the past two months he had been inhaling nitrous oxide… Continue reading Daily inhalation of laughing gas left the patient unable to walk

Meteorologists predicted the first “triple” La Niña this century

The cold phase of the Southern Oscillation – La Niña – may last until the end of 2022 – early 2023, according to a press release from the World Meteorological Organization. If meteorologists' forecasts come true, for the first time this century, La Niña will be observed for three consecutive winters in the Northern Hemisphere.… Continue reading Meteorologists predicted the first “triple” La Niña this century

Electrical brain stimulation stopped overeating in two patients

Electrical stimulation of the brain has proven to be an effective treatment against overeating and obesity. This was discovered by American scientists who worked with two patients with compulsive overeating disorder. They activated the area of ​​the brain that is responsible for food cravings with an electric current – and as a result, the women… Continue reading Electrical brain stimulation stopped overeating in two patients

Insulin pump restores brain structure in diabetic teenagers

Researchers from the United States have found out how different methods of insulin administration affect brain development in adolescents with type 1 diabetes. Typically, this disease causes changes in the structure of the brain and leads to a decrease in cognitive abilities. But as it turned out, those who used an advanced insulin pump (which… Continue reading Insulin pump restores brain structure in diabetic teenagers

Physicists made photons interfere with magnons

Chinese physicists have demonstrated quantum interference between waves of different natures, namely between photons and magnons. They repeated the Hong-Wu-Mandel experiment, where dark polaritons excited in an atomic cloud acted as a beam splitter. By controlling the properties of polaritons using an additional laser, scientists could change the nature of the interference from bosonic to… Continue reading Physicists made photons interfere with magnons

A candidate for an artificial radio signal from an Earth-like exoplanet turned out to be of terrestrial nature

Astronomers have concluded that the unusual narrow-band radio signal recorded in the direction of the Kepler-438 exoplanet system last year by the FAST telescope is not a technosignature, but is of anthropogenic origin. This is indicated by the polarization properties of the signal. A preprint of the work was published on arXiv.org. To answer the… Continue reading A candidate for an artificial radio signal from an Earth-like exoplanet turned out to be of terrestrial nature

Scientists have grown another batch of artificial mouse embryos

Embryologists again raised mouse embryos outside the mother's body. Recently, a group of Israeli scientists conducted a similar experiment and raised baby mice to the eighth day of development. Now the British have obtained approximately the same result – and at the same time verified that the Israeli embryo culture system ex utero works. The… Continue reading Scientists have grown another batch of artificial mouse embryos