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Fundamentals of First Aid (OPMP)

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Fundamentals of First Aid (OPMP)



Latest news of science and technology, new electronics:

The speech of sperm whales is similar to that of humans 18.05.2024

In the world of the ocean, where the mysterious and unknown coexists with the studied, sperm whales, with their huge brains, are of particular interest to science. Researchers, working with a huge array of audio recordings collected during the Dominica Sperm Whale Project (DSWP) - more than 8000 recordings, seek to unravel the secrets of their communication and understand the structure and complexity of the language of these mysterious creatures. By studying in detail the recordings of 60 sperm whales in the eastern Caribbean, scientists have revealed surprising features of their communication, revealing the complexity of their language. "Our observations indicate that these whales have a highly developed combinatorial communication system, including rubato and ornaments, which indicates their ability to quickly adapt and vary during communication. Despite significant differences in evolution, sperm whales have elements in their communication that are characteristic of human communication," says Shane Gero, a biologist at Carleton University and director of the CETI project. Issl ... >>

Electron spin for quantum information transfer 18.05.2024

The transfer of quantum information remains one of the key tasks of modern science. Recent advances in the use of electron spin to expand the capabilities of information transfer in quantum systems have become very important. Researchers at Lawrence Berkeley National Laboratory are pushing the frontiers of quantum information science by experimenting with the possibilities of electron spin. Electron spin, a natural quantum bit, is a potentially powerful means for storing and transmitting information in quantum systems. Magnon wave packets, collective excitations of electron spin, have revealed their potential to transmit quantum information over significant distances. The work of Berkeley Lab researchers has revolutionized the way such excitations propagate in antiferromagnets, opening up new prospects for quantum technologies. Using pairs of laser pulses, scientists disrupted antiferromagnetic order in one place and simultaneously studied it in another, creating ... >>

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

Random news from the Archive

The benefits of sex for athletes 20.10.2016

Laura Stefani from the University of Florence (Italy) and her colleagues analyzed and summarized data from scientific publications on the impact of the sexual life of athletes on their performance. They came to the conclusion that the prejudice that sex before the start is harmful is nothing more than a ridiculous myth.

The notion that sexual intimacy before a competition negatively affects athletes has existed since ancient times. Back in the XNUMXst century AD. the ancient Roman physician and philosopher Areteus of Cappadocia wrote that male power can weaken, transforming into a seed. Even earlier, the Greek philosopher Plato condemned the Olympians who practiced intimacy on the eve of the competition.

Nowadays, such an opinion exists, for example, among football coaches, and fans of the film about Rocky remember his mentor's warnings that "women make legs weak."

Scientists have analyzed more than 500 different scientific publications relating to the relationship of sex with physical activity. Surprisingly, there are practically no works dealing with this problem in detail. Of the nine studies that have been published over the past 60 years, researchers have found that none address this question systematically.

The researchers concluded that sex the night before a competition may even have a positive effect on athletic performance.

"In general, there is an overall positive effect of sex the night before a competition on an athlete's performance, especially from a psychological point of view. Sex has a relaxing effect that can help reduce stress, increase endurance (important for marathon runners) or concentration (when shooting)" , the authors write.

However, the researchers caution that the available material is somewhat ad hoc and there is still no reliable data on the correlation between sex and fitness.

Scientists talk about the positive impact of sex at least ten hours before the start, provided that the athlete does not smoke or drink alcohol.

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