Agar Clarification

Clarification

The Introduction of Agar-agar into Bacteriology.

Among fundamental developments in bacteriology the elaboration of solid culture substrates will always hold first place. With the introduction of a method for isolating micro6rganisms and growing them in pure culture, bacteriologists possessed the means for studying what Ferdinand Cohn (1872) called "Die kleinsten lebenden Wesen." Credit for the discovery of the solid medium technique is common...

Blood agar, chocolate agar, and Mycobacterium tuberculosis.

We have read with interest the recent paper by Drancourt et al. in which they reviewed the use of blood agar medium for the primary isolation of Mycobacterium tuberculosis (2). They state that to their knowledge “no comparative study comparing the efficacy of blood-based agars and egg-based agars has been carried out, and even the ability of blood agar to support growth of M. tuberculosis was f...

Resolving Ellipsis in Clarification

We offer a computational analysis of the resolution of ellipsis in certain cases of dialogue clarification. We show that this goes beyond standard techniques used in anaphora and ellipsis resolution and requires operations on highly structured, linguistically heterogeneous representations. We characterize these operations and the representations on which they operate. We offer an analysis couch...

Clarification: chemical synergism.

several scientists held the hope that the "Maltoni" work would clarify questions about MTBE's carcinogenic potential. Despite the enthusiasm of some scientists for Belpoggi's results, the most cursory examination of the paper reveals critical issues that show the data have been grossly overinterpreted. Rather than predicting a health hazard, the data indicate that rats tolerate enormous daily o...