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Mathematical regular distribution of neurons in the human brain

04.01.2024

Scientists from the Jülich Research Center and the University of Cologne in Germany, participating in the Human Brain Project, have discovered a surprising mathematical rule governing the distribution of neurons in the brain. It has been confirmed that the number of neurons in the outer layer of nervous tissue in various mammalian species follows a lognormal distribution.

The discovery of a lognormal distribution of neurons in the outer layer of the cerebral cortex across mammalian species has important implications for understanding brain function and evolution. This information can serve as the basis for the creation of accurate models that facilitate research into neurological mechanisms, and can provide impetus for the development of innovative treatments for various neurological diseases, alerting us to potential problems and improving quality of life.

The findings provide scientists with the key to creating precise models that will help unlock the mysteries of brain function and develop new treatments for neurological diseases.

The lognormal distribution, familiar in the world of statistics, becomes a striking revelation when analyzing neurons. This mathematical concept appears in nature, similar to the normal distribution, but with skewness and a pronounced right-sided tail. It is important to note that this distribution is also found in population, where large cities are combined with many smaller settlements.

Brain structure and function are closely related to the number and distribution of neurons. The diversity of neuronal densities in different parts of the cerebral cortex varies significantly.

The study used data from seven different mammal species, including humans. A comparative analysis of the density of neurons in different areas of the cerebral cortex revealed a general pattern of lognormal distribution.

The lognormal distribution becomes a natural result of various processes in a developing organism, just as the normal distribution is associated with the summation of independent variables.

The new study not only expands our understanding of brain structure, but also provides a basis for future research into treating neurological disorders. Attention to the mathematical patterns of neuron distribution opens up prospects for creating more effective methods of treating and combating brain diseases.

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Nio ET7 electric sedan 15.01.2021

Chinese electric vehicle manufacturer Nio has unveiled a new model, the ET7 premium all-electric sedan with impressive performance.

The Nio ET7 is built on a 480kW twin motor platform (180kW permanent magnet motor on the front axle and 300kW asynchronous motor on the rear axle), which equates to 653 hp. Peak torque is 850 Nm, which allows the electric car to accelerate to 100 km/h in just 3,9 seconds. In comparison, the upcoming 1100-horsepower Model S Plaid will be able to accelerate from 0 to 100 km / h in less than 2 seconds.

The range of the base Nio ET7 with a 70 kWh battery is 500 km (according to the NEDC cycle). For the variant with a battery capacity of 100 kWh, they promise 700 km on a single charge, and the top version with a solid-state battery with a capacity of 150 kWh is capable of traveling over 1000 km without recharging.

The new brainchild of the "Chinese Tesla" also impresses with a complex of different sensors and subsystems for autonomous driving. The "brain" of Nio ET7 is an Adam supercomputer based on four NVIDIA Orin SoCs (one such SoC has 17 billion transistors and provides performance up to 254 TOPS.). That is, a total of 48 processor cores, 8096 CUDA cores, 256 third-generation tensor cores and a total computing power of 1016 TOPS are obtained. Adam is reportedly capable of processing 8 GB of data per second.

Complementing the supercomputer, the NIO Aquila Super Sensing complex consists of 33 highly sensitive components, including 11 cameras with a resolution of 8 megapixels each, one LiDAR scanner, 5 mm radars, 12 ultrasonic sensors, two high-precision positioning units, V2X and ADMS. Interestingly, this abundance of sensors had practically no effect on the design.

The base Nio ET7 is priced at $69.

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