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GPRS protocol. Brief instructions for beginners. Stepurin A., 2005.

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This book gives a brief description of GPRS and a general description of the services of the GPRS service. It also talks about mobile systems and GSM systems.

Link to download the e-book
GPRS protocol. Brief instructions for beginners. Stepurin A., 2005: download from depositfiles.com

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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

Computer games are becoming an increasingly popular form of entertainment among teenagers, but the associated risk of gaming addiction remains a significant problem. American scientists conducted a study to determine the main factors contributing to this addiction and offer recommendations for its prevention. Over the course of six years, 385 teenagers were followed to find out what factors may predispose them to gambling addiction. The results showed that 90% of study participants were not at risk of addiction, while 10% became gambling addicts. It turned out that the key factor in the onset of gambling addiction is a low level of prosocial behavior. Teenagers with a low level of prosocial behavior do not show interest in the help and support of others, which can lead to a loss of contact with the real world and a deepening dependence on virtual reality offered by computer games. Based on these results, scientists ... >>

Traffic noise delays the growth of chicks 06.05.2024

The sounds that surround us in modern cities are becoming increasingly piercing. However, few people think about how this noise affects the animal world, especially such delicate creatures as chicks that have not yet hatched from their eggs. Recent research is shedding light on this issue, indicating serious consequences for their development and survival. Scientists have found that exposure of zebra diamondback chicks to traffic noise can cause serious disruption to their development. Experiments have shown that noise pollution can significantly delay their hatching, and those chicks that do emerge face a number of health-promoting problems. The researchers also found that the negative effects of noise pollution extend into the adult birds. Reduced chances of reproduction and decreased fertility indicate the long-term effects that traffic noise has on wildlife. The study results highlight the need ... >>

Random news from the Archive Indian village of twins 16.08.2009 Indian doctors and physiologists are investigating the reasons for the unusually high twin birth rate in the remote village of Kodinhi in northern Kerala. Officially, 250 pairs of twins are registered here, but their real number is 300-350 pairs. There are an average of about 45 twins per thousand births, while the average for India is more than ten times lower. The phenomenon of the village of Kodinhi, according to the old-timers, arose three generations ago, and over the past 60-70 years, the frequency of twin births has been increasing. Researchers believe that the reason may lie in some natural substances obtained by local residents with water or food. In any case, contamination with chemical waste can be ruled out, since children are born perfectly healthy and there are no industrial enterprises nearby.

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