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Rizqiya, 18COL ( view networks? )
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Rizqiya She's a 15 years old. She's a student of SMPN (Junior High School) 4 Pekalongan, Indonesia. Born in Makassar( South Sulawesi ) March 7, 1997. Her Life is totally cool*wuaha* she have a cool family(momma,papa, cinglok,kinoi) she have many crazy friends,
Mouse Cortex Array Tomography JourneyMonday, November 22, 2010 // back to top?
The human brain is truly amazing. The brain of a normal and healthy to have around 200 billion nerve cells, which are connected with each other through the hundreds of trillions of synapses (connecting one neuron and the next neuron). Synaptic function such as microprocessors, and 10,000 of them in order to connect one neuron to other nerve cells.
In the cortex, you can find about 125 trillion synapses, the amount is equivalent to the amount that is in 1500 the Milky Way. Very impressive. Synapse was very small. Less than a thousandth of a millimeter in diameter.So tiny, so far, no studies are able to know clearly what can and what they do everyday.The amount varies from time to time. Can increase and decrease. And, it still continues to occur throughout life.They are researchers from the Stanford University School of Medicine, who has spent the last few years to create new imaging engineering model of the brain, which he called tomographic array (array tomography).So called because the imaging time model is linked with new software that can sort out the picture as if it looks like a three-dimensional. Not only that, the picture is the result of imaging by the software can also be rotated, impenetrable, even navigated freely.To test their model, the team did not immediately take a sample of humans, but mice.Rat was chosen because it has a biological brain neurons are larger and visible from the skin of the brain. The light yellow-green. With the light of this, so researchers could see the synapses with neurons background.In research on humans, they found that the human brain is far more complex than what they imagined, even to the point beyond belief."One of synapses such as a microprocessor, complete with storage media and elements to process information, not just the on and off," said Stephen Smith, professor of molecular and cellular physiology who also had a big hand in the research."A synapse can accommodate 1000 molecular scale button. That's just one synapse. You can imagine, a human brain has a number of buttons. It exceeds all the computers, routers and all Internet connections that exist on earth," explained Smith, who quoted from Cnet VIVAnews , Sunday, November 21, 2010.