In this paper the derivation of the second differentiation of a general yield surface implicit time stepping method along with its consistent elastic-plastic modulus is studied. Moreover, the explicit, trapezoidal implicit and fully implicit time stepping schemes are compared in rate-dependant plasticity. It is shown that implementing fully implicit time stepping scheme in rate-dependant plasti...

A challenge to ultra high field functional magnetic resonance imaging is the predominance of noise associated with physiological processes unrelated to tasks of interest. This degradation in data quality may be partially reversed using a series of preprocessing algorithms designed to retrospectively estimate and remove the effects of these noise sources. However, such algorithms are routinely v...

Time evaluation of wave functions for any quantum mechanical system/particle is essential nevertheless quantum mechanical counterpart of the time dependant classical wave equation does simply not appear. Epistemologically and ontologically considered time dependant momentum operator is initially defined and an Alternative Time Dependant Schrödinger Wave Equation (ATDSWE) is plainly derived. Con...

In this article we study three capillary compressible models (the classical local Navier-Stokes-Korteweg system and two non-local models) for large initial data, bounded away from zero, and with a reference pressure state ρ̄ which is not necessarily stable (P (ρ̄) can be non-positive). We prove that these systems have a unique local in time solution and we study the convergence rate of the soluti...

PURPOSE To computationally separate dynamic brain functional BOLD responses from static background in a brain functional activity for forward fMRI signal analysis and inverse mapping. METHODS A brain functional activity is represented in terms of magnetic source by a perturbation model: χ = χ0 +δχ, with δχ for BOLD magnetic perturbations and χ0 for background. A brain fMRI experiment produces...

Seed dispersal and germination are critical to the fitness of all tree species. Moreover, among most trees the percentage of seeds that become seedlings, or “seedling success”, is very low. We examined seed success of a dominant lowland rainforest species, Pentaclethra macroloba, across a soil moisture gradient. Previous studies have established that P. macroloba has reduced seed germination ra...

study of the works of rumi and kierkegaard shows that both thinkers in some principles like faith and morality, faith and leap, and also in relation between devil and faith, and destiny and faith, come to a common point. both of them believe that human’s duty is to surrender to god’s will, and the devil is an obstacle against faith. they also put emphasize on the matter of leap in faith. moreov...

Some cognitive neuroscientific hypotheses might concern neural responses occurring during particular periods of time in a behavioral trial. Here, these particular periods of time are referred to as temporal components of the trial. A difficulty in using BOLD fMRI to test hypotheses about neural responses during temporal components is that some information is irretrievably lost when neural respo...

Much research has focused upon the dynamics of the conditional volatility of financial asset returns. Broadly speaking there are two important features of the process underlying volatility. These may be described as either a sign effect, where the level of volatility is related to the sign of past returns or a size effect, where the dynamics of volatility are related to prevailing level of vola...