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BERN, Jan. 15 (Xinhua) -- Chinese President Xi Jinping spoke highly of the China-Switzerland partnership here on Sunday, saying it has become a paradigm of
relations between countries of different sizes.


Accompanied by his Swiss counterpart Doris Leuthard, Xi made the remarks during a tea chat on a special train of the Swiss government running from Zurich
to Bern, during his ongoing visit to the European country.


Appreciating the years' commitment of Leuthard to deepening the two countries' cooperation in all areas, Xi said he is glad to visit Switzerland at
the beginning of 2017 and attend the World Economic Forum (WEF).


As one of the first Western countries to recognize and establish diplomatic relations with the People' s Republic of China, Switzerland has taken the lead
in developing cooperation with China, recording a trove of "firsts" in this
process, Xi said.


He cited Switzerland's lead on the continental Europe to sign and implement a free trade agreement with China, and join the China-proposed Asian
Infrastructure Investment Bank.


In 2016, Switzerland became the first and only country to set up a strategic partnership with China featuring innovation.


"During this visit, I would like to engage in in-depth talks with President Leuthard and other Swiss leaders, to enrich our partnership, and boost our
cooperation in all areas," Xi said.


He added that China, sharing similar views with Switzerland on many international issues, wishes to work with the European nation to enhance their
coordination in international affairs.


Noting that China encourages more and more Chinese tourists to travel to Switzerland, Xi said China, which is to host the 2022 Winter Olympics, stands
ready to promote cooperation with Switzerland on developing winter sports.


For her part, Leuthard thanked Xi for choosing her country as the destination of his first state visit in 2017, saying the decision represents the importance
China has attached to Switzerland.


Switzerland stands ready to push forward cooperation with China on various fields, said Leuthard.


China is an influential country in the world, said Leuthard, adding that the international community looks forward to hearing Xi's exposition of China's
policies at the WEF as the world is facing many uncertainties right now, said
the Swiss leader.


Xi will deliver a keynote speech at the opening ceremony of the WEF annual meeting on Tuesday to share the views of the world's second largest economy on
charting the course for globalization.


During the chat, the two leaders also exchanged views on such issues as Belt and Road Initiative and green development. They agreed to propel the two
countries' cooperation in science and technology, innovation, connectivity,
infrastructure construction, clean energy and regional-level exchanges.


SAN FRANCISCO nike air force 270 red for sale , June 28 (Xinhua) -- Researchers with the University of California, Berkeley, have for the first time reconstructed the whisker map a
mouse creates of its surroundings in order to navigate its world, catch insects
and avoid cats.


Unlike cats and dogs nike air force 270 black for sale , mice are able to move their whiskers to map out their surroundings, much as humans use their fingers to build a 3D picture of a
darkened room.


The sensory nerves at the base of each rodent whisker connect to well-defined structures in the cortex or outer layer of the brain, so-called barrel columns,
because they're shaped like a barrel. Each of the mouse's 24 large facial
whiskers has an associated barrel column that's activated when the whisker
encounters an object. The entire barrel cortex is between 2.5 and 3 millimeters
across.


With these columns thoroughly mapped over the past decades nike air force 270 shoes for sale , neuroscientists try to discover how brain circuits process, store and use sensory information.


However, Hillel Adesnik, a UC Berkeley assistant professor of molecular and cell biology air force 270 for sale , was more interested in how the brain uses whisker information to construct a picture
of the world around the head.


"Beyond the reach of the whiskers, rodents use vision as well as auditory and olfactory cues to explore the world, but because their near vision is very
blurry, close to the face rodents use touch nike air force 2 low for sale ," he was quoted as explaining in a news release. "With their whiskers they scan the world the way we would scan with our hand at night on the
night table to look for our cellphone."


His question was: "How does an animal represent space in its cortex so it can localize and then identify an object so that it can execute an action, like
picking up the phone, or, for rodents nike air force 2 for sale , identifying something it wants to eat?"

The answer lies in a layer of cells in the outermost thickness of the mouse's somatosensory cortex. While the barrel cells in the preceding cortical layer,
layer 4, are patterned according to the whiskers, neurons in layers 2 and 3
receive input from several barrel cells at once and process this information.
Layer 4 is about 400 microns deep nike sf af1 black for sale , while layers 2 and 3 start at about 100 microns deep from the cortical surface. The outermost layer of the cortex, layer 1, can
range between 100 and 150 microns thick.


"The hypothesis was that layers 2 and 3, which are one step away from layer 4 nike sf af1 white for sale , are not just encoding whiskers; maybe they are encoding space, that is, the space the whiskers are currently scanning," Adesnik
said. "You can think of it as the mouse's field of view as it's moving its
whiskers. Maybe there is a map that represents that space nike air force 1 independence day red for sale , and not the whiskers."

In the study published in the current issue of the journal Neuron, using two-photon calcium imaging, which allows more precise localization of
fluorescently tagged nerve cells deeper inside brain tissue, Adesnik and his
colleagues were able to map how the cells in layers 2 and 3 respond when the
mice whisked their whiskers and encountered objects near their head.

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Posted 27 Aug 2018

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