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

In Norway, a repaired arrow from an unlucky hunter was found that had melted from under the ice.

Archaeologists have discovered in Norway the shaft of a medieval arrow, the broken shank of which was repaired by a hunter using sinew. However, apparently, then he was unsuccessful again and his shot missed the target, burying the arrow for several centuries under snow and ice. As the Secrets of the Ice project team reports… Continue reading In Norway, a repaired arrow from an unlucky hunter was found that had melted from under the ice.

Scientists disprove stereotype of lazy cannabis users

British researchers have refuted the stereotype that people who smoke marijuana are more apathetic and unmotivated. They tested cannabis users and non-users for apathy and anhedonia, and conducted a series of reward-related behavioral tests. The results showed that there was no significant difference between the two groups. A study conducted among adults and adolescents was… Continue reading Scientists disprove stereotype of lazy cannabis users

Physicists were able to obtain acoustic frequency combs at 10 gigahertz

American physicists have manufactured a hybrid system from a nonlinear oscillatory circuit and an acoustic resonator connected by a piezoelectric contact. This combination made it possible to impart nonlinearity to acoustic modes at a frequency of 10 gigahertz. The authors were able to generate coherent acoustic frequency combs in their setup, which will help combat… Continue reading Physicists were able to obtain acoustic frequency combs at 10 gigahertz

Compression socks protected the intestines of marathon runners from damage

Australian sports doctors, with the participation of fifty runners, studied how compression socks affect the effects of running on the digestive system. After the marathon, those who ran in knee socks had lower levels of a protein marker of small intestinal damage. In an article published in The Journal of Strength and Conditioning Researchthe authors… Continue reading Compression socks protected the intestines of marathon runners from damage

Burial of a woman with a 1,400-year-old folding chair unearthed in Germany

Archaeologists have discovered the burial of a woman in Middle Franconia who died at approximately 40–50 years of age around 600 AD. Among her accompanying equipment was a folding iron chair. This is only the second such discovery from the early Middle Ages made in Germany. This was reported in a press release from the… Continue reading Burial of a woman with a 1,400-year-old folding chair unearthed in Germany

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

An antilaser with a degenerate cavity turned out to be an excellent absorber

Physicists combined the idea of ​​a coherent ideal absorber (antilaser) with the concept of a degenerate resonator. The constructed optical system effectively absorbs light incident on it from various angles, and its operation has proven to be resistant to typical interference in optical communication lines. The study was published in Science. Absorption is an important… Continue reading An antilaser with a degenerate cavity turned out to be an excellent absorber

Thousand-year-old remains of a man with XXY chromosomes discovered in Portugal

The remains of a man who lived more than a thousand years ago were discovered in Portugal. This adult was found to have a very wide ilium, malocclusion, and maxillary prognathism. Genetic analysis showed that the man had Klinefelter syndrome – he belonged to the karyotype 47, XXY. This was reported in an article published… Continue reading Thousand-year-old remains of a man with XXY chromosomes discovered in Portugal

Food neurons found in visual cortex

American scientists have found that there are neurons in the ventral optic stream that respond to images of food. They recognized neural signals that, in standard fMRI data analysis, appeared to be drowned out by other nearby populations. Clusters of food neurons were found on both sides of the region of the vesiform gyrus, which… Continue reading Food neurons found in visual cortex