TL;DR: Using single-particle averaging methods to analyze images of negatively stained basal bodies of Salmonella typhimurium, modelling shows that features very near to the axis of the reconstruction are not reliable but that broader, off-axis features are represented faithfully.
TL;DR: In this article, it was shown that for several important classes of commutative rings, L* and O* are equivalent, and that an artinian ring is O* if and only if it is O*.
Abstract: It is shown that for several important classes of commutative rings, L* and O* are equivalent. In particular, a commutative artinian ring is L* if and only if it is O*. More examples of O*-fields are provided.Mathematics Subject Classification (2010): Primary 06F25.Keywords: Lattice order, partial order, regular division closed, total order, F*-ring,L*-ring, O*-ring
TL;DR: A protocol is described to isolate the basal body of the flagellar basal body from a marine bacterium, Vibrio alginolyticus, for structural analysis of additional ring structures, the T ring and H ring.
Abstract: Most bacteria can swim by rotating the flagellum. The basal body of the flagellum is an essential part for this motor function. Recent comprehensive analysis of the flagellar basal body structures across bacteria by cryo-electron tomography has revealed that they all share core structures, the rod, and rings: the C ring, M ring, S ring, L ring, and P ring. Furthermore, it also has uncovered that in some bacteria, there are extra ring structures in the periplasmic space and outer-membrane. Here, we describe a protocol to isolate the basal body of the flagellar basal body from a marine bacterium, Vibrio alginolyticus, for structural analysis of additional ring structures, the T ring and H ring.
TL;DR: In this article, a description of all compactifications of a completely regular frame L in terms of certain sub-l -rings of the l -ring R L of its real-valued continuous functions is presented.