Luria-Bertani broth supports Escherichia coli growth to an optical density at 600 nm (OD(600)) of 7. Surprisingly, however, steady-state growth ceases at an OD(600) of 0.3, when the growth rate slows down and cell mass decreases. Growth stops for lack of a utilizable carbon source. The carbon sources for E. coli in Luria-Bertani broth are catabolizable amino acids, not sugars.

Abstract This essay discusses the brief but extensive correspondence Soviet neuro-psychologist Alexander Luria exchanged with his younger American colleague Oliver Sacks between 1973 and 1977, year died. Sacks, whose case histories went on to become mainstream bestsellers, always expressed indebtedness Luria, warm detailed approach writing about patients’ peculiar sometimes distressing neurolog...

This paper begins with a review of the scientific and technical problems that led Freud to abandonneuroscience and to establish the new discipline of psychoanalysis. That review is followed by aconsideration of some developments that took place in the neurosciences after Freud's death, due to theefforts of the Soviet neurologist, A.R. Luria. These developments seem to reverse the hi...

After the introduction of pure culture techniques for the study of bacteria in the late 19th century, it became accepted that bacteria, like higher organisms, have inherited qualities. A single bacterium isolated on the surface of agar produces a clone of descendants, all of which resemble the original parent in virtually every respect. However, it also became clear that variants appear in othe...

We introduce a Mellin transform of functions which live on all of R and discuss its applications to the limiting theory of Bellman-Harris processes, and specifically Luria-Delbrück processes. More precisely, we calculate the life-time distribution of particles in a Bellman-Harris process from their first-generation offspring and limiting distributions, and prove a formula for the Laplace transf...

Bacillus subtilis gene ypfP, which is located at 196 degrees on the genetic map, shows similarity to both the monogalactosyldiacylglycerol synthase gene of Cucumis sativus, which encodes a galactosyltransferase, and the murG genes of B. subtilis, Escherichia coli, Haemophilus influenzae, and Synechocystis sp. strain PCC6803, which encode N-acetylglucosaminyltransferases involved in peptidoglyca...