Abstract
Due to the degradation of the earth during the past years, we are assisting to the increase of the number and intensity of natural catastrophes, with growing material and human losses. There's a recognized need to either improve or establish new Early Warning Systems. In fact, it isn't yet well known a normalized proceeding to organize the gathering and treatment of data, for a posterior analyses and emission of alerts, nor the acceptance of a architecture, either in terms of data or system, that allow the integration with other similar systems, in order to do a consistent analysis over larger territories. This paper aims to contribute to a proposal of an architecture to organize the needed resources of a Catastrophes Early Warning System. © 2009 IADIS.

Abstract
Emotional contagion is a process by which a person or group induces emotions, consciously or unconsciously, to another person. In this work, the authors present a model for contagion of emotions using the Emotional Contagion Scale (ECS). The model focuses on the unconscious aspect of Emotional Contagion, and is implemented using the NetLogo environment. The results show that the model can simulate different contagious patterns according to different emotions and different sizes of the groups, simulating what is found in human groups. ©2009 IEEE.

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