Subcutaneous chips with COVID-passport. Free Technical Library News

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Subcutaneous chips with COVID-passport

31.12.2021

Several thousand Swedes have implanted implants under their skin in recent years, eliminating the need to constantly carry public transport tickets, a bank card, an electronic key or a business card. Recently, DSruptive Subdermals started using the chips as a COVID passport. This was reported by the agency AFP.

"A chip implant costs 100 euros. If you want to buy a more advanced version, for example, for tracking health indicators, it will probably cost twice as much. But a chip implant lasts 20-40 years," said Hannes Sjoblad, Managing Director DSruptive Subdermals.

Many "consider chips a scary technology," he says, but they should be treated as mere identification tags.

"They don't have a battery, they can't transmit on their own, they can't determine your location," Sjoblad said.

The chip consists of certified biocompatible glass, high-brightness lead-free LED, ultra-thin circuit board with NFC interface, EEPROM. Works with iOS and Android. The chip also has 2 KB of memory, a coil with an inductive ferrite core at a frequency of 13,56 MHz.

DSruptive Subdermals guarantees data retention for 50 years.

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With age, memory begins to work differently. 06.05.2019

Among the different types of memory, psychologists and neuroscientists distinguish working memory, which stores the information we need right now. We have already talked in detail about what working memory is and how it works. Its role can hardly be overestimated - it is necessary for such intellectual operations as learning, understanding and reasoning, and without working memory we would literally not be able to connect two words.

But any memory changes with age, and changes not for the better. There are many studies devoted to age-related changes in working memory, and the staff of the Higher School of Economics and the University of York summarized here by analyzing 82 works on this topic. In total, they covered 2020 people who could be divided into three age groups: 18-35 years old, 35-55 years old and 55-85 years old.

They all went through different versions of the same cognitive test: they were shown a series of objects in which they had to identify an image that had already been in the series some number of positions ago. The test indicated the state of working memory - it was she who had to hold the seen objects in order to be able to recognize them again. The participants' brain activity was monitored using functional magnetic resonance imaging (fMRI).

When performing a test on working memory, one could see the coordinated work of different areas of the prefrontal cortex of the brain. But best of all, they agreed in young people, worse in middle-aged people, and even worse in older people. At the same time, the aging brain tries to compensate for the problems: with age, the parietal areas of the cortex are activated in it, which may indicate a functional reorganization of working memory mechanisms, that the parietal areas are trying to help the prefrontal ones that cannot cope.

Although it cannot be said that working memory skills deteriorate with age, at the same time it can be assumed that during the course of life people change strategies for using working memory to solve certain problems. That is, roughly speaking, with age, memory literally begins to work differently.

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