نتایج جستجو برای: policy control
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It is well known that stochastic control systems can be viewed as Markov decision processes (MDPs) with continuous state spaces. In this paper, we propose to apply the policy iteration approach in MDPs to the optimal control problem of stochastic systems. We first provide an optimality equation based on performance potentials and develop a policy iteration procedure. Then we apply policy iterat...
Self-regulation programs deter many advertising practices, but there are inherent limitations to its power in the United States. U.S. media vehicle managers' advertising acceptance policies may influence advertising content, but their decisions often are focused on priorities other than consumer protection. This article describes the power limitations of U.S. selfregulation and media advertisin...
To study the biological and behavioral process of the recent drastic fertility decline in China, the authors reviewed relating factors (proximate determinants) and applied the Bongaarts model to the population of China for the years 1971 and 1981, during which the fertility rate dropped most rapidly and substantial population control policies were performed. By application of the model, the de...
Australia has an evolving national cancer control agenda. In this paper, we review the history and development of cancer control policies in Australia up to the end of 2005, and discuss the principal publications produced by both government and non-government groups which have given rise to cancer control recommendations, goals and targets. These cancer control plans have arisen in response to ...
1802 This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (http://creativecommons. org/licenses/by-nc-nd/3.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-u...
By raising the price of cigarettes through tobacco taxes, policymakers might only be delaying some smokers' initiation of smoking rather than permanently preventing them from smoking. This is one of several reasons for adopting a balanced tobacco control policy that relies only in part on cigarette taxation.
The need for policies to control calls is justified by the changing face of communications. It is argued that call control requires distinctive capabilities in a policy system. A specialised policy language called APPEL (ACCENT Project Policy Environment/Language) has therefore been developed for this purpose. However the policy language is cleanly separated into a core plus specialisations for...
Background: HIV/AIDS control are one of the most important goals of the health systems. The aim of this study was to determine how HIV/AIDS control was initiated among policy makers’ agenda setting in Iran. Methods: A qualitative research (semi-structured interview) was conducted using Kingdon’s framework (problem, policy and politics streams, and policy windows and policy...
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