Results 111 to 120 of about 3,363,294 (297)
The Distance between Rival Nonstationary Fractional Processes [PDF]
Asymptotic inference on nonstationary fractional time series models, including cointegrated ones, is proceeding along two routes, determined by alternative definitions of nonstationary processes.
Peter M Robinson
core
Fractional variational problems with the Riesz-Caputo derivative [PDF]
, 2012 In this paper we investigate optimality conditions for fractional variational problems, with a Lagrangian depending on the Riesz-Caputo derivative. First we prove a generalized Euler-Lagrange equation for the case when the interval of integration of the ...
Almeida, R. +2 more
core +1 more source
Advances in Difference Equations, 2019 In this paper, an optimal control for a novel fractional West Nile virus model with time delay is presented. The proposed model is governed by a system of fractional delay differential equations, where the fractional derivative is defined in the Grünwald–
N. H. Sweilam, O. M. Saad, D. G. Mohamed
doaj +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Coupled implicit Caputo fractional q-difference systems
Advances in Difference Equations, 2019 This paper deals with some existence, uniqueness, and Ulam stability results for a coupled implicit Caputo fractional q-difference system in Banach and generalized Banach spaces.
Saïd Abbas +3 more
doaj +1 more source
Prospecting the protein design landscape
FEBS Letters, EarlyView.This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona +4 more
wiley +1 more source
A tunable finite difference method for fractional differential equations with non-smooth solutions
, 2017 In this work, a finite difference method of tunable accuracy for fractional differential equations (FDEs) with end-point singularities is developed. Modified weighted shifted Grünwald–Letnikov (WSGL) formulas are proposed to approximate the left and ...
Zeng, F., Karniadakis, G. E., Chen, X.
core +1 more source
Analysis of Nonlinear Fractional Nabla Difference Equations
International Journal of Analysis and Applications, 2015 In this paper, we establish sufficient conditions on global existence and uniqueness of solutions of nonlinear fractional nabla difference systems and investigate the dependence of solutions on initial conditions and parameters.
Jagan Mohan Jonnalagadda
doaj +2 more sources
Different Digits Equivalent Fractions - II
, 2019 This work brings equivalent fractions for 10-digits without repetition of digits. Sometimes known as pandigital. For the 3 to 9 digits see first part of this work. For repetition of digits, the number of equivalent fractions increases too much. These shall be dealt elsewhere.
openaire +2 more sources