Note added to the above Paper

Paper Companies’ Effect on the Value Added Tax Audit Risk (VAT)

One of the most important problems and challenges of the VAT system is formation of paper companies which lacks credit and incurring great financial losses for the country’s tax system. The paper companies have no existence and no economic activities and make disorder in economy of the country and they prevent economic transparency. The main objective of the present study is to identify the fac...

Technical note on the paper :

In Section 3.1 of [1] a methodology is presented to compute the salient points of a 3D mesh based on the computation of its protrusion function, see Equation (1) in [1]. Explicitly each point υ of the Mesh is examined as a potential salient point. Specifically a geodesic neighborhood is constructed for each point of the mesh and it is considered as a salient point if it is the local maximum of ...

Publisher's Note added on 9 October 2006

Publisher’s Note added on 24 January 2014

White Paper Application Note

Introduction Short column sedimentation equilibrium analysis offers many advantages for researchers wanting quick, sure characterization of the solution properties of macromolecules. Presented here is a list of when short column methods are an appropriate choice, a brief theoretical treatment and an overview of short column sedimentation methods, including ones diagnostic for self-association a...