We present in this paper an adaptive security model for Multi-agent systems. A security meta-model has been developed in which the traditional role concept has been extended. The new concept incorporates the need of both security management as used by role-based access control (RBAC) and agent functional behaviour in agent-oriented Software Engineering (AOSE). Our approach avoids weaknesses of ...

abstract background: the use of antioxidants in the treatment of infertility has been suggested and recent studies have indicated that oral administration of satureja khuzestanica essential oil (skeo) to rats induces significant antioxidative effects. objective: this systematic review was conducted to evaluate the effectiveness of antioxidants in infertility and also to assess the effectiveness...

In the studies on selection and population genetics of forest trees that include the analysis of genotype × environment interaction (GE), the use of biplot graphs is relatively rare. This article describes the models and analytic methods useful in the biplot graphs, which enable the analyses of mega-environments, selection of the testing environment, as well as the evaluation of genotype stabil...

Introduction All living organisms must interact with an external environment and should respond to it in a way that maximizes their probability of reproduction and survival. If an organism can learn, it will be able modify its behavior based on environmental feedback and potentially increase its survival probability. The processes underlying learning and behavior are of interest to researchers ...