Results 51 to 60 of about 8,028 (315)
Generic automorphisms of fields
Annals of Pure and Applied Logic, 1997 It is shown that the theory of fields with an automorphism has a decidable model companion. In this paper, quantifier-elimination is established in a natural language. The theory is intimately connected (via fixed fields) to Ax's theory of pseudofinite fields and analogues are obtained for most of Ax's classical results. Some indication is given of the
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Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
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Asymptotic symmetries of three-dimensional black strings
Journal of High Energy Physics, 2019 We determine a consistent phase space for a theory consisting in the Einstein-Hilbert action coupled to matter fields (dilaton, one-form, two-form) and containing three-dimensional black strings (the Horne-Horowitz solution and generalizations thereof ...
Stéphane Detournay +2 more
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Fluid-electromagnetic helicities and knotted solutions of the fluid-electromagnetic equations
Journal of High Energy Physics, 2022 In this paper we consider an Euler fluid coupled to external electromagnetism. We prove that the Hopfion fluid-electromagnetic knot, carrying fluid and electromagnetic (EM) helicities, solves the fluid dynamical equations as well as the Abanov Wiegmann ...
Horatiu Nastase, Jacob Sonnenschein
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Geometric Studies on Mittag-Leffler Type Function Involving a New Integrodifferential Operator
Mathematics, 2022 The generalized exponential function in a complex domain is called the Mittag-Leffler function (MLF). The implementations of MLF are significant in diverse areas of science. Over the past few decades, MLF and its analysis with generalizations have become
F. Ghanim +3 more
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FIELD OF MODULI OF GENERALIZED FERMAT CURVES [PDF]
The Quarterly Journal of Mathematics, 2010 11 ...
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Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
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On a class of selection rules without group actions in field theory and string theory
SciPost PhysicsWe discuss a class of selection rules which i) do not come from group actions on fields, ii) are exact at tree level in perturbation theory, iii) are increasingly violated as the loop order is raised, and iv) eventually reduce to selection rules ...
Justin Kaidi, Yuji Tachikawa, Hao Y. Zhang
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Classical observer form for discrete-time nonlinear system: MIMO case [PDF]
Proceedings of the Estonian Academy of SciencesThe paper addresses the problem of transforming multi-input multi-output discrete-time nonlinear state equations into the classical observer form using state transformation.
Arvo Kaldmäe +4 more
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Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source