OBJECTIVE To improve the evidence base for health policy by devising a method to measure and monitor the performance of health systems. DESIGN Estimation of the relation between levels of population health and the inputs used to produce health. SETTING 191 countries. MAIN OUTCOME MEASURE Health system efficiency (performance). RESULTS Estimated efficiency varied from nearly fully effici...

Efficiency in olefin cross-metathesis reactions is affected upon reducing the steric bulk of N-heterocyclic carbene ligands of ruthenium-based catalysts. For the formation of disubstituted olefins containing one or more allylic substituents, the catalyst bearing N-tolyl groups is more efficient than the corresponding N-mesityl catalyst. In contrast, the formation of trisubstituted olefins is mo...

Calculation of the cross-correlation can be carried out in both the spatial and Fourier domain. The relative efficiency of the two techniques is dependent on the search area and target area sizes. The Fourier Transform method becomes more efficient as the target area size approaches the search area and with larger search and target areas. This paper outlines techniques which have been investiga...

We analyse the temporal changes in the cross correlations of returns on the New York Stock Exchange. We show that lead-lag relationships between daily returns of stocks vanished in less than twenty years. We have found that even for high frequency data the asymmetry of time dependent cross-correlation functions has a decreasing tendency, the position of their peaks are shifted towards the origi...

School of Management, University of Science and Technology of China, Hefei, China. ___________________________________________________________________________ Abstract Employee performance evaluation is an important task for performance management, thus efficient employee performance evaluation method is a necessity. This paper proposes to combine Workforce Scorecard and DEA method to evaluate ...

Wireless mesh network (WMN) is a novel emerging technology that will change the world more effectively and efficiently. It is regarded as a highly promising technology being increasingly important in mobile wireless networks of the future generation. In this paper, we consider energy management for wireless mesh networks from a point of view that started recently to attract the attention means ...

This paper attempts to estimate the efficiency of the top 300 Asia Pacific Banks, as ranked by the Asian bankers, through a cross country analysis. We use a non-parametric frontier technique called data envelopment analysis (DEA) to derive technical and scale efficiency measures for these banks in 2006. The sensitivity of DEA efficiency of various input-output variables combination is investiga...

Abstract Data envelopment analysis (DEA), a useful assessment tool, has been used to solve the problem of preference voting and aggregation which require the determination of the weights associated with different ranking places. Instead of applying the same externally imposed weighting scheme to all candidates, DEA models allow each candidate to choose his/her own weights in order to maximize h...

This note looks at the efficiency of the cross-wired mesh array in the context of matrix multiplication. It is shown that in case of repeated operations, the average number of steps to multiply sets of n×n matrices on a mesh array of size n 2 approaches n.