Results 41 to 50 of about 4,525,854 (182)

Meaning in life as a predictor of the general health among medical sciences students: A cross‐sectional study

open access: yesNursing Open, 2021
Aim To investigate the predictive role of meaning in life on the general health among medical sciences students. Design A cross‐sectional study. Methods Four‐hundred medical sciences students were selected by proportional to size sampling.
Zohreh Shahhosseini   +3 more
doaj   +1 more source

Some new canonical forms for polynomials

open access: yes, 2013
We give some new canonical representations for forms over $\cc$. For example, a general binary quartic form can be written as the square of a quadratic form plus the fourth power of a linear form.
Alexander   +12 more
core   +2 more sources

Convergence rate of linear two-time-scale stochastic approximation

open access: yes, 2004
We study the rate of convergence of linear two-time-scale stochastic approximation methods. We consider two-time-scale linear iterations driven by i.i.d. noise, prove some results on their asymptotic covariance and establish asymptotic normality.
Konda, Vijay R., Tsitsiklis, John N.
core   +1 more source

A Priori Error Estimates of Mixed Finite Element Methods for General Linear Hyperbolic Convex Optimal Control Problems

open access: yesAbstract and Applied Analysis, 2014
The aim of this work is to investigate the discretization of general linear hyperbolic convex optimal control problems by using the mixed finite element methods.
Zuliang Lu, Xiao Huang
doaj   +1 more source

Numerical simulation of fuzzy differential equations using general linear method and B-series

open access: yesAdvances in Mechanical Engineering, 2017
In this article, numerical simulation of fuzzy differential equations using general linear method is proposed. The significance of general linear method is derivation of algebraic order conditions of method using technique of rooted trees and B-series ...
Faranak Rabiei   +3 more
doaj   +1 more source

FATODE: A Library for Forward, Adjoint, and Tangent Linear Integration of ODEs [PDF]

open access: yes, 2011
FATODE is a FORTRAN library for the integration of ordinary differential equations with direct and adjoint sensitivity analysis capabilities. The paper describes the capabilities, implementation, code organization, and usage of this package.
Sandu, Adrian, Zhang, Hong
core   +1 more source

(α)-Stable Multi-Derivative GLM

open access: yesJournal of Algorithms & Computational Technology, 2015
This paper considers multi-derivative general linear methods and thus presents some second and third derivative general linear methods of orders 5, 7 and 10 in its output methods for computing the solution of stiff initial value problems in ordinary ...
R. I. Okuonghae, M. N. O. Ikhile
doaj   +1 more source

General Runge–Kutta–Nyström Methods for Linear Inhomogeneous Second-Order Initial Value Problems

open access: yesMathematics
In this paper, general Runge–Kutta–Nyström (GRKN) methods are developed and analyzed, tailored for second-order initial value problems of the form y″=Ly′+My+g(t), where L,M∈Rn×n are constant matrices with n≥1. The construction of embedded pairs of orders
Nadiyah Hussain Alharthi   +3 more
doaj   +1 more source

Classification of structural MRI images in Alzheimer's disease from the perspective of ill-posed problems. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND:Machine learning neuroimaging researchers have often relied on regularization techniques when classifying MRI images. Although these were originally introduced to deal with "ill-posed" problems it is rare to find studies that evaluate the ill ...
Ramon Casanova   +3 more
doaj   +1 more source

Numerical approximations of McKean anticipative backward stochastic differential equations arising in initial margin requirements* [PDF]

open access: yesESAIM: Proceedings and Surveys, 2019
We introduce a new class of anticipative backward stochastic differential equations with a dependence of McKean type on the law of the solution, that we name MKABSDE.
Agarwal A.   +5 more
doaj   +1 more source

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