Results 31 to 40 of about 166,385,429 (248)

Iterative methods for the force-based quasicontinuum approximation : analysis of a 1D model problem [PDF]

, 2011
Force-based atomistic-continuum hybrid methods are the only known pointwise consistent methods for coupling a general atomistic model to a finite-element continuum model.
Luskin, Mitchell Barry, Ortner, C., Ortner, Christoph, M. Dobson, M. Luskin, C. Ortner, Luskin, M., Dobson, Matthew   +7 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Convergence of Szász-Mirakyan type operators

Journal of Numerical Analysis and Approximation Theory, 2007
We introduce certain modifications of Szász-Mirakyan operators and we study approximation properties of these operators. The result is in a form convenient for applications.
Zbigniew Walczak
doaj   +2 more sources

Fractional-Order Approximation of PID Controller for Buck–Boost Converters

Micromachines, 2021
Viability of a fractional-order proportional–integral–derivative (PID) approximation to regulate voltage in buck–boost converters is investigated. The converter applications range not only to high-power ones but also in micro/nano-scale systems from ...
Allan G. S. Sánchez, Josué Soto-Vega, Esteban Tlelo-Cuautle, Martín Antonio Rodríguez-Licea   +3 more
doaj   +1 more source

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, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Approximation of continuous functions on hexagonal domains

Journal of Numerical Analysis and Approximation Theory, 2018
Some approximation properties of hexagonal Fourier series are investigated. The order of approximation by Nörlund means of hexagonal Fourier series is estimated in terms of modulus of continuity.
Ali Guven
doaj   +2 more sources

Adjoint Bernoulli’s Kantorovich–Schurer-Type Operators: Univariate Approximations in Functional Spaces

Mathematics
In this work, we first establish a new connection between adjoint Bernoulli’s polynomials and gamma function as a new sequence of linear positive operators denoted by Sr,ς,λ(.;.).
Harun Çiçek, Nadeem Rao, Mohammad Ayman-Mursaleen, Sunny Kumar   +3 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Estimates for Durrmeyer-type exponential sampling series in Mellin-Orlicz spaces

Demonstratio Mathematica
This study examines Durrmeyer-type exponential sampling series to obtain a quantitative estimate by using the concept of the logarithmic modulus of smoothness defined with the help of a suitable modular functional on Mellin-Orlicz spaces.
Kangal Esma, Kantar Ülkü Dinlemez
doaj   +1 more source

Spline-in-compression approximation of order of accuracy three (four) for second order non-linear IVPs on a graded mesh

MethodsX, 2023
A spline-in-compression method, implicit in nature, for computing numerical solution of second order nonlinear initial-value problems (IVPs) on a mesh not necessarily equidistant is discussed.
R.K. Mohanty, Bishnu Pada Ghosh
doaj   +1 more source