Polsinelli, M. (University of Pavia, Pavia, Italy), O. Ciferri, G. Cassani, and A. Albertini. Mechanism of resistance to actinomycin in Bacillus subtilis. J. Bacteriol. 88:1567-1572. 1964.-Strains of Bacillus subtilis were rendered resistant to actinomycin D by serial transfer in increasing concentrations of the drug. Resistance to the antibiotic appeared to be due to an altered cell-wall perme...

Hospital-acquired infections caused by vancomycin-resistant enterococci (VRE) are increasing. The resistance of VRE to multiple antibiotics makes them clinically challenging. There are at least six phenotypes of VRE, including VanA, VanB, VanC, VanD, VanE, and VanG (2, 8). These phenotypes correspond with the genotypes vanA, vanB, vanC, vanD, vanE, and vanG. VanA and VanB phenotypes are common ...

Antimicrobial peptides (AMPs) are essential components of innate immunity in all living organisms, and these potent broad-spectrum antimicrobials have inspired several antibacterial development programs in the past 2 decades. In this study, the development of resistance to the Gram-negative bacterium-specific peptide cycloviolacin O2 (cyO2), a member of the cyclotide family of plant miniprotein...

We study a game theoretic model of competing network service providers that are connected in parallel and serial combinations and that strategically price their service in the presence of elastic user demand. Demand is elastic in that it diminishes both with higher prices and latency, which in turn grows linearly with a network’s usage. To obtain our results, we make an analogy between the game...

A systolic serial multiplier for unsigned numbers is presented which operates without zero words inserted between successive data words, outputs the full product and has only one clock cycle latency. &#10The multiplier is based on a modified serial/parallel scheme with two adjacent multiplier cells. Systolic concept is a well-known means of intensive computational task through replication of fu...

In the experiments presented, Virus myxomatosum was observed to produce only a localized fibromatous or myxomatous orchitis when injected into the testicles of cottontail rabbits. This type of disease was quite unlike the acute fatal illness which the virus caused in domestic rabbits. 10 serial passages of Virus myxomatosum through cottontail rabbits, covering a total elapsed time of 140 days, ...

Abstract The article presents the results of research and an analysis possibility using sinters made graphite powder as a material dedicated to production bipolar plates for low-temperature fuel cell. use metallurgy technology allows materials that meet requirements cell elements construction closing single (bipolar or monopolar plates) interconnectors. morphological chemical powder, microstruc...