نتایج جستجو برای: the new mu
تعداد نتایج: 16329199 فیلتر نتایج به سال:
We have previously shown that Mu restores an active DNA replication at non-permissive temperature in E. coli K12 ligts7 strains. In this paper we describe two new types of phage mutants for the Mu lig function. The Mu ligts mutants are conditional lethals defective for both integration and replication of DNA, unable to 'complement' the bacterial lig mutation; the map between B and lys. The muta...
The Mathematics Understander (MU) is a computer program which "understands" mathematics texts expressed in the language FEL (Formal Expression Language). MU can learn new definitions, check proofs providing explanations of the steps, and solve simple problems. MU is able, in principle, to learn any branch of pure mathematics from scratch, and has understood texts in Group Theory and Classical A...
New mini-Mu transposons with plasmid replicons were constructed with additional features for in vivo DNA cloning and lac gene fusing in Escherichia coli. These mini-Mu replicons can be used to clone DNA by growing them with a complementing Mu bacteriophage and by using the resulting lysate to transduce Mu-lysogenic cells. These mini-Mu phage have selectable genes for resistance to kanamycin, ch...
The DNA of bacteriophage Mu has been studied to characterize a region of inhomogeneous sequence that occurs at one end of the molecule. The kinetics of reassocation of tracer amounts of labeled host DNA in the presence of Mu DNA show that Mu DNA contains a complete selection of host sequences. These host sequences are shown to be covalently attached to phage-specific sequences and are present a...
This article is devoted to study of the autoconvolution equations and generalized Mittag-Leffler functions. These types of equations are given in terms of the Laplace transform convolution of a function with itself. We state new classes of the autoconvolution equations of the first kind and show that the generalized Mittag-Leffler functions are solutions of these types of equations. In view of ...
Introduction: Occupational exposure to Extremely Low Frequency Magnetic Fields (ELF-MFs) in train drivers is an integral part of the driving task and creates concern about driving jobs. The present study was designed to investigate the occupational exposure of Tehran train drivers to extremely low frequency magnetic fields. Methods: In order to measure the driver’s exposure, from each ...
The paper presents a new calculus (called algebraic mu-calculus) which generalizes Park's relational mu-calculus by representing arithmetric expressions and real-valued functions rather than formulas and relations. Moreover, we give an algorithm for computing the MTBDD-representation of the semantics for the expressions and terms and show how several problems (such as graph theoretic problems o...
This study examines whether readers of the paper and online versions of a national newspaper acquire different perceptions of the importance of political issues. Using data from a weeklong experiment in which subjects either read the print version of the New York Times, the online version of that paper, or received no special exposure, this study finds evidence that people exposed to the Times ...
The initial employment of alpha-benzoin oxime (bzoxH(2)) in higher oxidation state 3d metal cluster chemistry has provided access to a new enneanuclear Mn(III) complex with an unprecedented metal-core topology consisting of two triangular [Mn(3)(mu(3)-Omicron(2-))(mu-OmicronNu)(3)](4+) fragments connected by a linear [Mn(3)(mu-OmicronNu)(6)](3+) unit. The Mn(III)(9) cluster is antiferromagnetic...
Online news comments are often confronted with issues of civility and inclusivity, which are sometimes pegged to the anonymity afforded to contributors in those spaces. In this work we study one form of anonymity in online comments that manifests as users changing their display name when they write a given comment. We undertake a predominantly quantitative analysis of how display names are chan...
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