We de ne a con ict of interest policy and show that the de nition is su ciently general to include several well-known generic policies as special cases and to articulate policies in di erent models of access control. We show that con ict of interest policies can be regarded as members of P(P(X)), for some set X, where P(X) denotes the powerset of X, and that such policies can be reduced to a ca...

agricultural sustainability refers to the ability of a farm to produce food indefinitely, without causing irreversible damage to ecosystem health. the main objective of this study was to formulate a structural model to analyze the effects of ecological, social, and economic factors on sustainable agricultural development in qazvin province of iran. to achieve this aim, a structural model with 4...

Place-based policies commonly target underperforming areas, such as deteriorating downtown business districts and disadvantaged regions. Principal examples include enterprise zones, European Union Structural Funds, and industrial cluster policies. Place-based policies are rationalized by various hypotheses in urban and labor economics, such as agglomeration economies and spatial mismatch— hypot...

Temporal role-based access control (TRBAC) extends rolebased access control to limit the times at which roles are enabled. This paper presents a new algorithm for mining high-quality TRBAC policies from timed ACLs (i.e., ACLs with time limits in the entries) and optionally user attribute information. Such algorithms have potential to significantly reduce the cost of migration from timed ACLs to...

This paper analyzes innovation trends in South Korea by means of the number of patent applications filed by residents and nonresidents during the period 1965 to 2012. Making use of patent data released by the World Intellectual Property Organization (WIPO), we search for the presence of multiple structural changes in patent application series in this country. These changes may suggest that firm...

Development and maintenance of control software has emerged as one of the most difficult problems associated with building Flexible Manufacturing Systems (FMS). FMS controllers , potentially the most flexible FMS components, are characterized by their inflexibility. To support configuration flexibility of FMS controllers, this work proposes a modular hierarchical control structure which combine...

To be effective, criminal justice policies should affect the underlying social norms for which the policies were enacted. This study sought to determine whether public perceptions of criminal justice policies on domestic violence affected social norms. Two waves of data were collected via a telephone survey where a random probability sample of 973 residents was drawn from 4 communities. A struc...

This article aims to analyze Equity Promotion Policies in Health implemented by the Ministry of Health for vulnerable groups, through the Department of Strategy and Participative Management based on race, ethnicity, gender and lifestyle markers. The three structural elements of these policies are identified as: participatory management, transversality and awareness / professional qualifications...

russia is considered the core of the former empire of the ussr. many social and structural features of the soviet :union: could be observed in the development of russia’s political power and strategic attitude. geo-political competitions between russia and the west can be traced back to the 19th century. these competitions were shaped within the framework of the balance of power system in inter...

This paper formulates dynamic R&D investment decisions of private firms as an optimal stochastic control problem. It derives explicitly R&D investment decision rule and the cross equations parameter restrictions imposed by the rational expectations hypothesis, using the Riccati equations only and not requiring the use of Wiener-Kolmogorov prediction formula. Identification and estimation of the...