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Beware the bridge

10.05.2005

According to road statistics, every day in England, five buses or trucks crash with their roofs into a too low bridge over the road or into the arch of the entrance to the tunnel. There are also human casualties, and many hours of traffic jam in each such case is guaranteed.

The British company Bridge Clear has developed a system that warns the driver with an audible signal that he is approaching a bridge that is too low. The system is based on a satellite navigation device, which contains a map of the road indicating the height of all obstacles encountered above the road.

The device also remembers the height of the van or bus itself.

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Latest news of science and technology, new electronics:

Energy from space for Starship 08.05.2024

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New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Major risk factor for gambling addiction 07.05.2024

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Predatory bacteria as a living antibiotic 30.11.2016

Dr. Serge Mostowy of Imperial College London (UK) and his colleagues found that the "predatory" bacterium Bdellovibrio bacteriovorus can be used as an effective remedy against Shigella bacteria, which are increasingly developing resistance to antibiotics and causing severe inflammatory diseases.

Shigella bacteria are responsible for more than 160 million cases of illness and more than a million deaths each year. It is the most common cause of so-called "traveler's diarrhea". The spread of drug-resistant strains of bacteria is also on the rise, as antibiotics are often used even in mild cases to stop the disease more quickly, even though diarrhea usually clears up on its own without treatment. Antibiotic resistance has prompted researchers to study the bacterium's natural "enemies".

For the experiment, the researchers used zebrafish fry that had been infected with a deadly titer of Shigella flexner strain M90T, which is resistant to streptomycin and carbenicillin. The scientists then injected Bdellovibrio bacteria into the infected wounds and observed a decrease in the number of Shigella. It is significant that in the absence of a "predatory" bacterium, zebrafish would be unable to control the reproduction of a pathogenic infection.

Scientists have found that the Bdellovibrio bacterium can kill a number of Gram-negative bacteria, such as E. coli and Salmonella, in the natural environment. Previous research has shown that it can reduce the number of disease-causing bacteria in the stomach of chickens when taken as an oral therapy, but there is a growing need to develop treatments for infections in wounds and organs. The successful use of Bdellovibrio bacteriovorus indicates its potential use in the treatment of a number of drug-resistant Gram-negative bacterial infections.

Using bacteria to get rid of other bacteria may seem like an unusual solution, but in light of the looming threat from drug-resistant infections, the potential for beneficial bacterial interactions should not be overlooked. Researchers are increasingly relying on the latest lines of antibiotics, but this groundbreaking research demonstrates how predatory bacteria can be an important addition to existing infection-fighting drugs.

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