M. Tuan Tu

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The diversity of research and development work on agent technology has led to a strong distinction between mobile and intelligent agents. This paper presents an architecture aiming at providing a step towards the integration of these two aspects, concretely by providing an approach of dynamically embedding negotiation capabilities into mobile agents. In(More)
1. Extracellular purine and pyrimidine nucleotides have been implicated in the regulation of several cellular functions including mitogenesis. In this study, experiments were conducted to characterize the P2Y receptor on C(6) glioma cells responsible for stimulating cell proliferation associated with mitogen-activated protein kinase (MAPK) activation. 2.(More)
Oxidized low-density lipoprotein (OX-LDL) contributes significantly to the development of atherosclerosis. However, the mechanisms of OX-LDL-induced vascular smooth muscle cell (VSMC) proliferation are not completely understood. Therefore, we investigated the effect of OX-LDL on cell proliferation associated with a specific pattern of mitogen-activated(More)
In this paper we propose electronic contract negotiation — a sub-part of the more general area of electronic commerce — as an example application for mobile agents. We start by presenting a set of requirements that an application should fulfill in order to take advantage of mobile agents and show that not all distributed applications meet these(More)
In this article, a framework to integrate negotiation capabilities { particularly components implementing a negotiation strategy { into mobile agents is described. This approach i s conceptually based on the notion of an actor system which decomposes an application component i n to autonomously executing subcomponents cooperating with each other.(More)
In this paper, an approach to implement strategies for automated negotiations in electronic commerce applications is presented. It is based on genetic algorithms (GAs) that evolve FSMs (Finite State Machines). Each of these FSMs represents a negotiation strategy that competes against other strategies and is modified over time according to the outcome of(More)
The dynamic and evolutionary character of open electronic service markets with respect to both the application and the system infrastructure level requires appropriate system support mechanisms in order to dynamically configure business transactions and provide the required support services in flexible and individual ways. This paper proposes the use of(More)
This paper proposes an application framework for mobile agents which provides rule-based generic services to support the three phases of a market transaction (information phase, contracting phase and settlement phase). It is described within the four views of an electronic market which describe organizational as well as technological aspects. The focus of(More)
The characteristic features of delegation and interaction make the mobile agent programming paradigm on the one hand attractive for a wide range of distributed applications { in particular those related to E-Commerce { but on the other hand also pose a considerable semantical risk potential. In this paper, we present a generic approach of imposing rules on(More)