Considering multivariate strongly mixing time series, nonparametric tests for a constant copula with specified or unspecified change point (candidate) are derived; the tests are consistent against general alternatives. A tapered block multiplier technique based on serially dependent multiplier random variables is provided to estimate p-values of the test statistics. Size and power of the tests ...

An algorithm for first–principles electronic structure calculations having a computational cost which scales linearly with the system size is presented. Our method exploits the real–space localization of the density matrix, and in this respect it is related to the technique of Li, Nunes and Vanderbilt. The density matrix is expressed in terms of localized support functions, and a matrix of vari...

For a large class of problems the self-consistent simulation of charged particle beams in linear accelerators is necessary. Typically, Particle-In-Cell (PIC) simulations use a fixed computational grid which has to resolve the bunch adequately. This leads to enormous memory consumption. Therefore, and especially in the 3D case, only rather short sections can be simulated. A remedy to this limita...

government interventions in agricultural markets in order to stabilize commodity prices and producer incomes have had a long tradition. intervention has been at both the state and country levels and has been for the most part in the form of commodity-based schemes. this study represents an attempt to develop an appropriate methodology for analyzing the aggre-gate effects of a particular type of...

introduction: malignant salivary gland tumors are rare entities. despite advances in surgery, radiation therapy and chemotherapy, the rate of the mortality and five-year survival has not been improved markedly over the last few decades. the activation of egfr- ras-raf signaling pathway contributes to the initiation and progression of many human cancers, promising a key pathway for therapeutic m...

A self-consistent equilibrium calculation, valid for arbitrary aspect ratio tokamaks, is obtained through a direct variational technique that reduces the equilibrium solution, in general obtained from the 2D Grad–Shafranov equation, to a 1D problem in the radial flux coordinateρ. The plasma current profile is supposed to have contributions of the diamagnetic, Pfirsch–Schlüter and the neoclassic...

This work presents a technique to integrate production data into the reservoir characterization workflow. The application of the technique ensures that the construction of earth models for reservoir simulation will be geologically sound and consistent not only with all the observed static and production data, but also with the earth modeling workflow philosophy, regardless of its complexity. Th...

A new method is developed for estimating photometric redshifts, using realistic template SEDs, extending over four decades in wavelength (i.e. from 0.05 μm to 1 mm). The template SEDs are constructed for four different spectral types of galaxies (elliptical, spiral, irregular and starburst), satisfying the following characteristics: a) they are normalised to produce the observed colours of gala...

The dismount from the high bar is one of the most spectacular skills performed in Men's Artistic Gymnastics. Hiley and Yeadon [2005. Maximal dismounts from high bar. Journal of Biomechanics 38, 2221-2227] optimised the technique in the backward giant circle prior to release using a computer simulation model to show that a gymnast could generate sufficient linear and angular momentum to perform ...

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