Victoria Eugenia Ospina

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In this article we present the use of knowledge for a Mediation System, developed to give support to participants in mechanical-system-designer activities. To use a cooperative system sufficient assistance is needed to facilitate and coordinate actors’ activities. To accomplish this goal we introduce an artificial actor: Mediator. The Mediator forms part of(More)
A new series of chalcones 5a-f were synthesized from caffeine-based aldehyde 3 and substituted acetophenones 4a-f. Treatment of compounds 5a-f with hydrazine hydrate led to pyrazolines 6a-f, and their subsequent reaction with acetic anhydride or formic acid afforded the corresponding N-substituted pyrazolines 7a-f and 8a-f respectively. Additionally, the(More)
Cutaneous leishmaniasis and Chagas disease are vector-borne parasitic disease causing serious risks to million people living in poverty-stricken areas. Both diseases are a major health problem in Latin America, and currently drugs for the effective treatment of these diseases have important concerns related with efficacy or toxicity than need to be(More)
We present a mediation system, developed to give support to participants in mechanical-system-designer activities. Sufficient assistance is needed to facilitate and coordinate actors' activities. To accomplish this goal we introduce an artificial actor: Mediator. Mediator takes part to collaborative activity, with a specific role of facilitating cooperation(More)
Résumé. Travaillant sur l'élaboration d'une méthodologie de développement de systèmes de médiation intégrés dans des systèmes coopératifs, nous avons proposé une architecture à 3 composants : le premier concerne la coopération, le second l'assistance et le troisième est relatif aux connaissances nécessaires aux 2 précédents. Dans cet article nous présentons(More)
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