Countries, peoples, languages - Cities of Africa. Algeria. Crosswordist's Handbook

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Reference book crossword. Quick word search by mask. African cities. Algeria

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Countries, peoples, languages / Countries of the world / Cities of Africa. Algeria

(4)

ORAN - port

(5)

ALZHIR - capital, port

ARZEV - port

BECHAR

BLIDA

SETIF

(6)

ANNABA - port

(11)

KONSTANTINA

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Replace each unknown letter with *. For example, dog * ka, * oshka, we ** a. Pairs е - ё, and - й are equated.

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Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

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Random news from the Archive

Electronics work inside the body 03.07.2013

Scientists at Ohio State University in Columbus have created electronics that can work in direct contact with the tissues and fluids of a living organism. This technology opens up the broadest prospects in various fields: from the creation of remotely controlled animals to the production of "smart" implants, medical sensors and even artificial nerves.

Of course, nowadays there are already electronics that work inside the body, such as pacemakers. But all of them are isolated from the body and do not come into direct contact with living tissue. Typically, an implantable pacemaker is placed in a sealed stainless steel container, which is also coated with chemicals that suppress the body's immune response.

If all these precautions are not observed, then rejection of a foreign object will begin, which can result in severe inflammation and even worse. The new type of electronics does not have such problems and can work in living tissues, for example, as a sensor that detects proteins characteristic of the inflammatory process associated with the rejection of a transplanted organ.

Most importantly, a new type of implantable electronics is made on the basis of relatively cheap and well-mastered silicon. This is really surprising, because despite the fact that silicon is not toxic and is widely used in semiconductors, it cannot be used in its pure form in the body. This is due to the fact that the body's natural electrolytes, primarily sodium and potassium ions, penetrate silicon transistors and disrupt their operation.

To get around this problem, American scientists have developed a special protective coating for the creation of silicon bioelectronics. During the experiments, the coating reliably protected electronic circuits from exposure to a solution that mimics the chemical environment inside the body for 24 hours. In experiments, silicon chips were coated with aluminum oxide, but scientists believe that various materials, such as titanium, can be used for coating. This expands the scope of non-rejectable electronics, in particular, the developers believe that with the help of the new technology it will be possible to lay new neural pathways instead of damaged ones or connect the human nervous system to various devices: video cameras, prostheses, manipulators, robot control systems, exoskeletons, etc.

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