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Unified classification of neurons

03.09.2020

An international group of scientists led by specialists from Columbia University (USA) proposed to classify the neurons of the cerebral cortex.

There are about 100 billion neurons in the human brain, interconnected in complex ways. To decipher how the brain works and understand what can go wrong in many diseases, it is important to find out how many classes of neurons there really are and how they are connected to each other.

The question of how to classify neurons has been widely discussed since the dawn of modern neuroscience. According to Yuste, many attempts to describe their anatomical, physiological, and molecular features have been unsuccessful due to the cellular diversity of nerve cells.

However, over the past two decades, the Human Genome Project has developed many molecular methods that allow the identification and phenotyping of cells in large numbers. So, several groups of scientists began to collect data to classify cell types in the cerebral cortex.

In this study, a team of 74 scientists proposed using single-cell RNA sequencing as the basis for a unified classification of cortical neurons. This proposal was called the "Copenhagen Classification".

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TV from SEIKO EPSON with a built-in photo printer 18.03.2004

Seiko Epson entered the TV market with the EPSON Livmgstation LS47P1 and EPSON Livmgstation LS57P1 widescreen models.

The resolution of LCD TV panels is 1280x720 pixels with an aspect ratio of 16:9. The panel thickness is -14,9" for the 47" model and 16,3" for the 57" model. Built-in Photo On Demand technology allows you to view, print and save digital photos directly from your TV screen without a personal computer.

TV panels have slots for SD/MultiMediaCard, Memory Stick, Compact Flash and SmartMedia memory cards. The built-in sublimation photo printer displays images in 4x format. The built-in CD-R/RW drive is intended for saving photos. Photo On Demand technology allows you to get digital photos without leaving your apartment.

The TV panels will go on sale in March 2004 for $3500 for the Livmgstation LS47P1 and $4000 for the Livmgstation LS57P1.

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