Reason for variable response to tine test In comparative studies with the Mantoux test the tine method has shown false-negative rates of between 23% and 64%,1-though studies on highly sensitised tuberculous patients have tended to show a closer correlation.4 This inconsistency has remained unexplained by studies of the duration of application, skin temperature, and release of skin tension befor...

We introduce kernel nonparametric tests for Lancaster three-variable interaction and for total independence, using embeddings of signed measures into a reproducing kernel Hilbert space. The resulting test statistics are straightforward to compute, and are used in powerful interaction tests, which are consistent against all alternatives for a large family of reproducing kernels. We show the Lanc...

Input selection is an important consideration in all large-scale modelling problems. We propose that using an established noise variance estimator known as the Delta test as the target to minimise can provide an effective input selection methodology. Theoretical justifications and experimental results are presented.

This paper is devoted to study a computation scheme to approximate solution of fractional differential equations(FDEs) and coupled system of FDEs with variable coefficients. We study some interesting properties of shifted Legendre polynomials and develop a new operational matrix. The new matrix is used along with some previously derived results to provide a theoretical treatment to approximate ...

Geodynamic modeling is often related with challenging computations involving solution of the Stokes and continuity equations under the condition of highly variable viscosity. Based on a new analytical approach we have developed particular analytical solutions for 2-D and 3-D incompressible Stokes flows with both linearly and exponentially variable viscosity. We demonstrate how these particular ...

In this paper, we consider a spatial-autoregressive model with autoregressive disturbances, where we allow for endogenous regressors in addition to a spatial lag of the dependent variable. We suggest a two-step generalized method of moments (GMM) and instrumental variable (IV) estimation approach extending earlier work by, e.g., Kelejian and Prucha (1998, 1999). In contrast to those papers, we ...

A hybrid analytical-numerical strategy based on the Generalized Integral Transform Technique (GITT) is used to solve steady-state multidimensional models for contaminants dispersion in rivers, streams and channels. The aim is to analyze and exploit this hybrid approach in the reduction of computational costs associated with convection-diffusion models that contain more than one space variable. ...