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The Gram‐positive pathogen Bacillus anthracis grows in characteristic chains of individual, rod‐shaped cells. Here, we report the cell‐separating activity of BslO, a putative N‐acetylglucosaminidase bearing three N‐terminal S‐layer homology (SLH) domains for association with the secondary cell wall polysaccharide (SCWP). Mutants with an insertional lesion in the bslO gene exhibit exaggerated chain...
We use displacement encoding pulsed field gradient (PFG) nuclear magnetic resonance to measure Fourier components S q of flow displacement distributions P(ζ) with mean displacement 〈ζ〉 for Newtonian and non-Newtonian flows through rocks and bead packs. Displacement distributions are non-Gaussian; hence, there are finite terms above second order in the cumulant expansion of ln(S q )...
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