A blasticidin S-producing actinomycetes, Streptoverticillium sp. JCM 4673 possesses an enzyme activity which acetylates the drug in the presence of acetyl coenzyme A. The modified drug was biologically inactive when tested against protein synthesis in vivo and in vitro. Production of the enzyme which acetylates blasticidin S increases with formation of the antibiotic during cell growth.

I . The variability in the purchase and consumption of vitamin C in the diet of people living in the United Kingdom has been studied using the Annual Reports of the National Food Survey Committee and new observations gathered independently. 2. The sources of variability examined have been family household composition, social class, seasonal and week-to-week sampling variation. 3. The distributi...

It is believed by the scientific community that PL1 and PL2 are the largest concept languages for which there exists a polynomial algorithm that solves the subsumption problem. This is due to Donini, Lenzerini, Nardi, and Nutt, who have presented two tractable algorithms that are intended to solve the subsumption problem in those languages. In contrast, this paper proves that the algorithm for ...

engagement. Additionally, we found meaningful mediation effects, such that positive associations of job resources with work engagement were significantly mediated through SOC use. These findings suggest that the application of successful aging strategies and enhanced job resources are conducive to engagement at work. Theoretical and practical implications regarding the joint effects of SOC stra...

Gene cloning in Streptomyces has permitted the identification of a number of antibiotic-biosynthesis genes1 }. Complementation ofnonproducing mutants is commonly used to identify specific antibioticbiosynthesis genes. A serious difficulty is that many antibiotic-producing actinomycetes cannot be transformed efficiently by the conventional methods, e.g., those developed for Streptomyces lividans...

‎In this paper we study Finsler metrics with orthogonal invariance‎. ‎We‎ ‎find a partial differential equation equivalent to these metrics being locally projectively flat‎. ‎Some applications are given‎. ‎In particular‎, ‎we give an explicit construction of a new locally projectively flat Finsler metric of vanishing flag curvature which differs from the Finsler metric given by Berwald in 1929.

In this paper, we use the Riemann-Liouville fractionalintegrals to establish some new integral inequalities related toChebyshev's functional in the case of two differentiable functions.

This paper investigates the existence and uniqueness of solutions to rst-order nonlinear boundary value problems (BVPs) involving fuzzy dif- ferential equations and two-point boundary conditions. Some sucient condi- tions are presented that guarantee the existence and uniqueness of solutions under the approach of Hukuhara dierentiability.

In this work we develop a new optimal without memory class for approximating a simple root of a nonlinear equation. This class includes three parameters. Therefore, we try to derive some with memory methods so that the convergence order increases as high as possible. Some numerical examples are also ‎presented.‎‎