background:   the  role of nutrition  in the  progression  of multiple  sclerosis (ms) and  related  complications  such  as fatigue  has been  reported by several studies.  the  aim of this  study  is the  assessment of nutritional  status  and  its relationship with fatigue in multiple sclerosis patients. methods:  this  is  a  cross-sectional study, in which  101 relapsing-remitting ms patie...

Recent research on congestion control in high speed ATM networks has sought to extract statistical multiplexing eeciencies while guaranteeing quality of service. To facilitate network control, traac regulators are positioned at network edges, with Leaky Bucket regulation ubiquitous. We consider the composite of conventional Leaky Bucket regulators, one for each time scale. Over longer time scal...

We have developed previously ab initio molecular dynamics (AIMD) algorithms utilizing local molecular wave functions with atom-centered bases. The expense of such methods led us to explore means to employ multiple time step schemes to reduce costs. Herein we report our second implementation of such a scheme. In particular, our previous multiple time step AIMD method has been improved substantia...

We propose an extension of Thomson's multiple window spectrum estimation for stationary random processes to the time-varying spectrum estimation of non-stationary random processes. Unlike previous extensions of Thomson's method, in this paper we identify and utilize optimally concentrated window and wavelet functions for the time-frequency and timescale planes respectively. Moreover, we develop...

'Pae multiple time scale decomposition of discrete time, finite state Markov chains is addressed. In [1, 2], the behavior of a continuous time Markov chain is approximated using a fast time scale, e-independent, continuous time process, and a reduced order perturbed process. The procedure can then be iterated to obtain a complete multiple time scale decomposition. In the discrete time case pres...