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Научно-популярная литература          Автор Muhammad I.K.          Издательство Книга по Требованию

Salmonella Typhi and Food Chain. Occurrence of Food-borne Salmonella Typhi
56 стр. мягкая обложка

автор:Muhammad I.K.
издательство: Книга по Требованию
цена:2006 руб
- нет в наличии

Typhoid fever is a systemic disease contracted by ingestion of contaminated food or water. It is caused by the bacterium Salmonella typhi. Occurrence of S. typhi in poultry eggs, meat, drinking water, bakery products, and salad was studied. The isolates of S. typhi were confirmed by cultural characteristics, Gram's staining, biochemical and sugar fermentation reactions. These isolates were used as positive control in PCR and food samples directly collected in broth were checked for rapid detection of S. typhi in food chain instead of routinely used isolation and identification protocols. Anti-biogram profile of S. typhi isolates revealed that the isolates were highly susceptible to ciprofloxacin and to cefotaxime. The isolates were found resistant to amoxicillin and streptomycin. Application of PCR technique for the detection of S. typhi in food chain suggests a rapid detection method. This research work will be useful to know the occurrence of other food-borne human or animal pathogens in food commodities. Moreover, these findings may be helpful for food security and safety professionals as well as food microbiologists.

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The World is Flat

So the longer kids were in school, the dumber they were getting... You have teachers turning off kids because they were not trained. You know the old saw about the football coach teaching science-people who do not have the ability to make this accessible and gripping for kids.” One of the problems in remedying the situation, said Koon, is the fact that education in America is relatively decentralized and fragmented. If Intel goes to India or China or Jordan and introduces a teacher education program for making science more interesting, it can get into schools all over the country at once. In America, the public schools are overseen by fifty different state governments. While Intel does sponsor research at the university level that will benefit its own product development, it is growing increasingly concerned about the feeder system into those universities and the job market. “Have we seen any change here? No, not really,” said Koon. So Intel has been lobbying the INS for an increase in the number of advanced foreign engineers allowed into the United States on temporary work visas. “When we look at the kinds of people that we are trying to hire here-the master's and Ph.D. levels in photonics and optics engineering and very large-scale computer architecture-what we are finding is that as you go up the food chain from bachelor's to master's to Ph.D.'s, the number of people graduating from top-tier universities in those fields are increasingly foreign-born ...

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