La Bauma del Serrat del Pont (Tortellà, La Garrotxa): Un taller de metal·lúrgia del coure d’ara fa 4000 anys

Descripció de la campanya d’excavació de 1993 en el jaciment arqueològic de La Bauma del Serrat del Pont (Tortellà, La Garrotxa), en què es van trobar ceràmiques i 2 gresols amb restes de coure, la qual cosa fa pensar en l’existència a Catalunya d’una metal·lúrgia del coure

Diàleg entre ciències i humanitats

Presentació del tercer número d'Engega on es parla de la comunicació cultural i de la història de la ciència i la tècnica, de la importància del diàleg i la reflexió en la universitat actual i en relació al contacte amb la societat

Estimating the motion of an underwater robot from a monocular image sequence

When underwater vehicles perform navigation close to the ocean floor, computer vision techniques can be applied to obtain quite accurate motion estimates. The most crucial step in the vision-based estimation of the vehicle motion consists on detecting matchings between image pairs. Here we propose the extensive use of texture analysis as a tool to ameliorate the correspondence problem in underwater images. Once a robust set of correspondences has been found, the three-dimensional motion of the vehicle can be computed with respect to the bed of the sea. Finally, motion estimates allow the construction of a map that could aid to the navigation of the robot

Adaptive business intelligence for an open negotiation environment

Engineering of negotiation model allows to develop effective heuristic for business intelligence. Digital ecosystems demand open negotiation models. To define in advance effective heuristics is not compliant with the requirement of openness. The new challenge is to develop business intelligence in advance exploiting an adaptive approach. The idea is to learn business strategy once new negotiation model rise in the e-market arena. In this paper we present how recommendation technology may be deployed in an open negotiation environment where the interaction protocol models are not known in advance. The solution we propose is delivered as part of the ONE Platform, open source software that implements a fully distributed open environment for business negotiation