Paradigmatic Morphology and Subjectivity Mark-up in the RO-WordNet Lexical Ontology

Abstract. Lexical ontologies are fundamental resources for any linguistic application with wide coverage. The reference lexical ontology is the ensemble made of Princeton WordNet, a huge semantic network, and SUMO&MILO ontology, the concepts of which are labelling each synonymic series of Princeton WordNet. This lexical ontology was developed for English language, but currently there are more than 50 similar projects for languages all over the world. Ro-WordNet is one of the largest lexical ontologies available today. It is sense-aligned to the Princeton WordNet 2.0 and the SUMO&MILO concept definitions have been translated into Romanian. The paper presents the current status of the Ro-WordNet and some recent enhancement of the knowledge encoded into it

Strategic Executions of Choreographed Timed Normative Multi-Agent Systems

This paper proposes a combined mechanism for coordinating agents in timed normative multi-agent systems. Timing constraints in a multi-agent system make it possible to force action execution to happen before certain time invariants are violated. In such multiagent systems we achieve coordination at two orthogonal levels with respect to states and actions. On the one hand, the behaviour of individual agents is regulated by means of social and organisational inspired concepts like norms and sanctions. On the other hand, the behaviour of sets of agents is restricted according to action-based coordination mechanisms called choreographies. In both cases, the resulting behaviour is constrained by time

Life cycle strategies of Northern krill (Meganyctiphanes norvegica) for regulating growth, moult, and reproductive activity in various environments: the case of fjordic populations

Adaptive strategies of two fjord populations of Northern krill (Meganyctiphanes norvegica Sars) were studied and compared with other populations from different climatic and oceanic conditions. The Gullmarsfjord (West Sweden) and the Clyde Sea (West Scotland) resident populations followed the same basic pattern of development as the Kattegat (between Denmark and Sweden) and the Ligurian Sea (Northwest Mediterranean) populations, but the fjord krill reached a comparatively larger body size during their second year of life. The positive relationship between body size and fecundity means that fjord populations are potentially more productive than those of the open sea. High rates of moulting and spawning activity were limited to the spring and summer despite the fact that trophic conditions still seemed favourable in early autumn. We show here that, in autumn, the adult moult cycle became longer and growth stopped, large 2-year-old krill disappeared from the population and ovarian development was arrested. Resources already accumulated ill the oocytes (glycoproteic and lipid yolk) were recovered by oosorption and ovaries regressed for a winter rest. Autumn trophic conditions were still favourable in both sites, especially in terms of copepod abundance. However, the phytoplankton community changed from a dominance of diatoms in early season to dinoflagellates in late summer. We suggest that these changes triggered the autumn arrest of krill production