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Aggregatibacter actinomycetemcomitans is considered to be associated with periodontitis. Leukotoxin (LtxA), which destroys leukocytes in humans, is one of this bacterium's major virulence factors. Amounts of neutrophil elastase (NE), which is normally localized in the cytoplasm of neutrophils, are reportedly increased in the saliva of patients with periodontitis. However, the mechanism by which NE...
Absolute frequency of continuous-wave terahertz radiation was determined at an acuracy of 10−11 in real time by modulating a frequency spacing of photocarrier terahertz comb induced by a free-running femtosecond laser.
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