We contribute to a recent literature on the normalization, calibration and estimation of CES production functions. The problem arises because CES ‘share’ parameters are not in fact shares, but depend on underlying dimensions they are ‘dimensional constants’ in other words. It follows that such parameters cannot be calibrated, nor estimated unless the choice of units is made explicit. We use an ...

Separation of duty (SOD) is an important characteristic in the role-based access control (RBAC) system. In view of some issues such as various variations of SOD constraints (SODs), ambiguous relations among constraint states, this paper formally defines several typical SODs and analyzes the transition relations among different SODs states. In combination with a delegation case, it goes an explo...

Using a German firm-level data set, this paper is the first to jointly study the cyclical properties of the cross-sections of firm-level real value added and Solow residual innovations, as well as capital and employment adjustment. We find two new business cycle facts: 1) The cross-sectional standard deviation of firm-level innovations in the Solow residual, value added and employment is robust...

Charge-exchange neutralization of H3 + with Cs allows preparation of the low-lying Rydberg states of H3. These states are predissociated by the repulsive ground state and may play roles as intermediates in the dissociative recombination of H3 + + e. Translational spectroscopy and measurements of product momentum partitioning in three-body dissociative charge exchange of fast (12 keV) H3 + and D...

because many diseases are multifactorial disorders, the scientific progress in genomics and genetics should be taken into consideration in public health research. in this context, genomic databases will constitute an important source of information. consequently, it is important to identify and characterize the state's role and authority on matters related to public health, in order to verify w...