منابع مشابه
Chemotaxis in a gliding bacterium.
Myxococcus xanthus cells exhibit directed motility up phosphatidylethanolamine (PE) gradients, and we suggest that PE behaves as a chemoattractant. Computer-assisted stop-motion digital microscopy was used to record cell movements in slide culture. PE decreased cellular reversal frequency with molecular specificity that was correlated with the fatty acid composition. Synthetic dilauroyl (di C12...
متن کاملTendon gliding exercises.
An exercise program for tendon gliding is introduced for use in hand treatment and rehabilitation. The program incorporates thumb range of motion and three basic fist positions: book, fist, and straight fist. The anatomic and experimental basis of this program is discussed. The exercises allow the flexor tendons to glide to their maximum potential and can greatly facilitate therapeutic activiti...
متن کاملBats, viruses, emerging diseases and humans
This paper reviews the unique characteristics of bats, their important roles in providing ecosystem services, their viruses in relation to emerging diseases. Bats, as flying mammals, are the second largest order following rodents, with a wide variety (over 1400 identified species among 230 genera of 21 families in the world) due to their flying power and echolocation. Despite their importance a...
متن کاملBats
Do you have any strong views on journals and the peer review system? Yes. I think that the present review system is much less ‘honest’ and more biased than it was in the past. Twenty years ago, the reviewers cared about the results, checked carefully if the data had been collected correctly and whether appropriate controls had been carried out. The authors were free (within limits) to interpret...
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Evidence for long-term cooperative relationships comes from several social birds and mammals. Vampire bats demonstrate cooperative social bonds, and like primates, they maintain these bonds through social grooming. It is unclear, however, to what extent vampires are special among bats in this regard. We compared social grooming rates of common vampire bats Desmodus rotundus and four other group...
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ژورنال
عنوان ژورنال: Nature
سال: 1946
ISSN: 0028-0836,1476-4687
DOI: 10.1038/157304c0