Results 1 to 10 of about 112,926 (263)

Operator Sequence Alters Gene Expression Independently of Transcription Factor Occupancy in Bacteria

open access: yesCell Reports, 2012
A canonical quantitative view of transcriptional regulation holds that the only role of operator sequence is to set the probability of transcription factor binding, with operator occupancy determining the level of gene expression.
Hernan G. Garcia   +6 more
doaj   +3 more sources

Mathematical Expression Retrieval Method Based on Operator Information [PDF]

open access: yesJisuanji gongcheng, 2020
Traditional text retrieval technology is mainly for one-dimensional text,and can hardly retrieve two-dimensional structural mathematical expressions.To solve the problem,a mathematical expression retrieval method based on operator information is ...
XU Yicong, TIAN Xuedong, ZUO Lina
doaj   +1 more source

A More Accurate Half-Discrete Multidimensional Hilbert-Type Inequality Involving One Multiple Upper Limit Function

open access: yesAxioms, 2023
By means of the weight functions, the idea of introduced parameters, using the transfer formula and Hermite–Hadamard’s inequality, a more accurate half-discrete multidimensional Hilbert-type inequality with the homogeneous kernel as 1(x+||k−ξ||α)λ(x,λ>0)
Yong Hong, Yanru Zhong, Bicheng Yang
doaj   +1 more source

A New Extension of Hardy-Hilbert’s Inequality Containing Kernel of Double Power Functions

open access: yesMathematics, 2020
In this paper, we provide a new extension of Hardy-Hilbert’s inequality with the kernel consisting of double power functions and derive its equivalent forms.
Bicheng Yang, Shanhe Wu, Qiang Chen
doaj   +1 more source

An IPTG Inducible Conditional Expression System for Mycobacteria. [PDF]

open access: yesPLoS ONE, 2015
Conditional expression strains serve as a valuable tool to study the essentiality and to establish the vulnerability of a target under investigation in a drug discovery program.
Sudha Ravishankar   +8 more
doaj   +1 more source

On the expressive power of Łukasiewicz square operator [PDF]

open access: yesJournal of Logic and Computation, 2021
Abstract The aim of the paper is to analyze the expressive power of the square operator of Łukasiewicz logic: $\ast x=x\odot x$, where $\odot $ is the strong Łukasiewicz conjunction. In particular, we aim at understanding and characterizing those cases in which the square operator is enough to construct a finite MV-chain from a finite ...
Marcelo E. Coniglio   +3 more
openaire   +3 more sources

On a New Extended Hardy–Hilbert’s Inequality with Parameters

open access: yesMathematics, 2020
In this paper, by introducing parameters and weight functions, with the help of the Euler−Maclaurin summation formula, we establish the extension of Hardy−Hilbert’s inequality and its equivalent forms.
Bicheng Yang, Shanhe Wu, Jianquan Liao
doaj   +1 more source

The Inducible lac Operator-Repressor System Is Functional in Zebrafish Cells

open access: yesFrontiers in Genetics, 2021
BackgroundZebrafish are a foundational model organism for studying the spatio-temporal activity of genes and their regulatory sequences. A variety of approaches are currently available for editing genes and modifying gene expression in zebrafish ...
Sierra S. Nishizaki   +8 more
doaj   +1 more source

High-level expression of Bacillus naganoensis pullulanase from recombinant Escherichia coli with auto-induction: effect of lac operator. [PDF]

open access: yesPLoS ONE, 2013
Pullulanase plays an important role in specific hydrolysis of branch points in amylopectin and is generally employed as an important enzyme in starch-processing industry.
Yao Nie   +6 more
doaj   +1 more source

A more accurate Mulholland-type inequality in the whole plane

open access: yesJournal of Inequalities and Applications, 2017
By introducing independent parameters, applying the weight coefficients, and Hermite-Hadamard’s inequality, we give a more accurate Mulholland-type inequality in the whole plane with a best possible constant factor. Furthermore, the equivalent forms, the
Yanru Zhong, Bicheng Yang, Qiang Chen
doaj   +1 more source

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