منابع مشابه
Battling Phages: How Bacteria Defend against Viral Attack
Bacteriophages (phages) are accomplished, bacteria-specific, viral predators with far-reaching impact: from the food and biotechnology industries [1] to global nutrient cycling [2] to human health and disease [3]; wherever bacteria thrive, it seems, so do predatory phages. In order to survive the constant onslaught of phage, bacteria have evolved mechanistically diverse defense strategies that ...
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research rated 3a and 3b. A statement released by the council said, “The overall improvement in research ratings, combined with the limited amount of funds, means that there will inevitably be some reduction in levels of funding for departments rated below 5*.” Newby has estimated that an extra £200 million a year would have to be found if departments were to be funded on the same basis as befo...
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MEDICAL CHRONICLE | JULY 2017 27 Bacterial conjunctivitis is inflammation of the conjunctiva caused by direct contact with infected secretions. The most common organisms are Staphylococcus species, S. pneumonia, H. influenzae, and M. catarrhalis. It presents with conjunctival injection, mucopurulent discharge, and crusty eyelids. The diagnosis is usually clinical. The condition is often selflim...
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Guilford 2 Despite knowing well that " you can't have your cake and eat it too, " people still want many conflicting things at once. That is, people want to fulfill short-term desires and they want to do so without obstructing their long-term interests. Thus, weight watchers wish to eat many delicious cakes and they also wish not to look like they have eaten many delicious cakes. Similarly, pro...
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Illustration of the black hole in Cygnus X-1, a binary star system 6000 light-years away. A disk of stellar material feeds this black hole, which is 15 times as massive as the Sun but less than 60 kilometers across. As it falls toward the black hole, some of the material gets expelled in two opposite jets. A section highlighting recent research on black holes begins on page 535. For the story b...
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ژورنال
عنوان ژورنال: Nature
سال: 1977
ISSN: 0028-0836,1476-4687
DOI: 10.1038/269280a0