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1. Where can the problem of discovering new antibiotics be solved?
2. What has been established experimentally?
3. When has modern medicine been making extensive use of various antibiotics?
4. What doses can the tatracyclines be given orally in ordinary use?
5. How many drugs had Russia produced before new generation of antibiotics made its appearance?
1. What are powerful agents in combating infections?
2. Which fields of medicine has non-toxic preparation found wide application in?
3. When was chlortetracycline isolated from biomycin?
4. Why was it marked as auremucin?
5. What advantages does tetracycline possess over its sister compounds?
Since the end of the twentieth century modern medicine has been making an extensive use of various antibiotics. It should be noted that antibiotics are powerful agents in combating infections. The problem of discovering new antibiotics can be most successfully solved at special research institutes which may have a small experimental plant producing preparations of new antibiotics.
Russia has several research institutes working in this field. Before new generation of antibiotics made its appearance Russian science had produced a series of new effective drugs, such as albomycin, etc. This practically non-toxic preparation has found wide application in the treatment of pneumonia in newborn and small children. It is also successfully used in obstetric and gynecological practice. Surgeons have to use it during the treatment of the septic processes caused by staphylococci which can resist other antibiotics. It has been established experimentally that the composition of its molecule includes iron and it has a peculiar mechanism of affecting the bacteria.
Mention must also be made of tetracyclines, such as chlortetracycline. It was introduced after chlorphenol had been discovered. Therefore chlortetracycline was considered the second broad – spectrum antibiotic developed for therapeutic purposes. It was isolated in 1948 from biomycin. Because of its yellow colour it was marked as auremycin. Another antibiotic of this series is tetracycline. It has been found that it possesses great advantages over its sister compounds. It may produce less toxic effect and penetrate the cerebrospinal fluid to a much greater extent. It has been stated that in ordinary use the tetracyclines can be given orally in doses of 250 mg.
Work at least not as much as today's world is different from the world in 1908.
No flying of flyers is not likely to appear.
The ride will be the same on the four-wheel drive cars. Only the work they will no longer be on refining products.
Well, the public will be better trasnport, magnetic levitation train, and so on.
One thing is certain, it will be a world without oil, gas, coal and uranium.
All fossil fuels will be exhausted during the 21st century.
And like it or not the world will have to change.
The main problem is the energy future of the world. In thermonuclear hope silly, thermonuclear energy, even if such reactors will be designed to be much more expensive than energy from coal, for example.
What is more, and what is not?
Different languages and races are not going anywhere. There are black and white, yellow and blue =)
Politically, the world is unlikely to become uniform. Different countries and will continue to exist. Economically, except that only planet rally. But this is now happening.
For the world has changed radically, it has become completely one, it is necessary that occurred dramatic events.
World War II, a meeting with extraterrestrial intelligence, asteroid =)
I think without the skyscrapers, with a lot of forests and animals, with clean oceans, seas, lakes ... Without borders and states, the free human society ... A surprising number of creative people who freely communicate with each other and develop! Money is only the form of electronic cards and then if any will be needed! I think that people will learn to communicate without the help of improvised means, but by the mind, the subconscious !! ! There will be no machines running on oil resources, all kinds of energy resources will go to solar, wind and I think it will open some other source of energy which is now very few people know ... There will be no family, just be people or groups of people who like to live together, and the children will educate all children and this will only be wiser and smarter ... This I want to see planet Earth in 100 years ...