The Escherichia coli nusA gene, nusAEc, encodes an essential protein that influences transcription elongation. Derivatives of E. coli in which the Salmonella typhimurium nusA gene, nusASt, has replaced nusAEc are viable. Thus, NusASt can substitute for NusAEc in supporting essential bacterial activities. However, hybrid E. coli strains with the nusASt substitution do not effectively support tra...

In this paper, we defined two classes $S_{p}^{ast }(n,lambda ,A,B)$ and\ $ K_{p}(n,lambda ,A,B)$ of meromorphic $p-$valent functions associated with a new linear operator. We obtained convolution properties for functions in these classes.

In this note, we give some estimate of the generalized quadrature formula of Gauss-Jacobi$$underset{a}{overset{a+eta left( b,aright) }{int }}left( x-aright)^{p}left( a+eta left( b,aright) -xright) ^{q}fleft( xright) dx$$in the cases where $f$ and $left| fright| ^{lambda }$ for $lambda >1$, are $s$-preinvex functions in the second sense.

Arenas et al. [1] introduced the notion of lambda-closed sets as a generalization of locally closed sets. In this paper, we introduce the notions of lambda-locally closed sets, Lambda_lambda-closed sets and lambda_g-closed sets and obtain some decompositions of closed sets and continuity in topological spaces.

In this article, we construct the six-quark currents with $$J^P=0^+$$ , $$0^-$$ $$1^+$$ and $$1^-$$ to study $$\Lambda _c$$ dibaryon $${\bar{\Lambda }}_c$$ baryonium states via QCD sum rules. We consider vacuum condensates up dimension 16 truncation of order $${\mathcal {O}}(\alpha _s^k )$$ $$k\le 3$$ . The predicted masses are $$5.11_{-0.12}^{+0.15}$$ GeV, $$4.66_{-0.06}^{+0.10}$$ $$4.99_{-0.0...

The cosQ site of bacteriophage lambda is required for DNA packaging termination. Previous studies have shown that cosQ mutations can be suppressed in three ways: by a local suppressor within cosQ, an increase in the length of the lambda chromosome, and missense mutations affecting the prohead's portal protein, gpB. In the present work, revertants of a set of lethal cosQ mutants were screened fo...