this paper presents an analytic procedure for the value added to different production levels with different policy options. the approach is stochastic and thus provides a framework for informed decision-making on productivity growth under uncertainty conditions. the model was applied to data collected from a firm and re-sults recommend that the firm should redevelop if in diversification and sy...

background national oral health policy was conscripted by the indian dental association (ida) in 1986 and was accepted as an integral part of national health policy (nhp) by the central council of health and family welfare in one of its conferences in the year 1995. objectives of this paper were to find out the efforts made or going on towards its execution, its current status and recent oral h...

the present study was conducted to investigate the impacts of retrofitted cng vehicles on airpollutant emissions in tehran over a 20 years period using available statistical data, precise automobile tests, data analysis, and leap software. the obtained results revealed an increase in air pollutant emissionsincluding co (equal to 1030.77 thousand tons), nox (equal to 1030.77 thousand tons), thc ...

the present study was conducted to investigate the impacts of retrofitted cng vehicles on airpollutant emissions in tehran over a 20 years period using available statistical data, precise automobile tests, data analysis, and leap software. the obtained results revealed an increase in air pollutant emissionsincluding co (equal to 1030.77 thousand tons), nox (equal to 1030.77 thousand tons), thc ...

A ciphertext-policy attribute-based encryption scheme allows that an encrypter assigns a decryption policy to ciphertexts. Any user will be able to decrypt if and only if a set of attributes (his private key) satisfy the assigned decryption policy. In this paper we first propose a new chosen ciphertext secure ciphertext-policy attribute-based encryption scheme with constant-size ciphertext and ...