Accessibility constraints When dealing with anaphora resolution, anaphoric expressions are often considered to have access to a restricted set of discourse referents. The choice of the relevant discourse referent inside this set may depends on various kinds of information (morphosyntactic features, semantic features, salience. . . ). But theories that give a dynamic interpretation of language a...

The medullary dorsal reticular nucleus (DRt) was recently shown to belong to the supraspinal pain control system; neurons within this nucleus give origin to a descending projection that increases spinal nociceptive transmission and facilitates pain perception [Almeida et al. (1999), Eur. J. Neurosci., 11, 110-122]. In the present study, the areas of the brain that may modulate the activity of D...

Despite the importance and significant clinical impact of understanding information processing in the nociceptive system, the functional properties of neurons in many parts of this system are still unknown. In this work we performed whole cell patch-clamp recording in rat brain stem blocks to characterize the electrophysiological properties of neurons in the dorsal reticular nucleus (DRt), a re...

This paper outlines methods to perform basic spatial operations on 2D digital images that have been mapped into an equivalent set of digital projections. The digital projections are generated using the Discrete Radon Transform (DRT). Each digital projection is similar to an oriented straight-line integral of the Radon transform and the set of digital projections resembles the sinogram from clas...

How to represent knowledge is one of the key questions in the construction of expert systems. Its solution depends on a number of factors, the most important of which are how knowledge is to be acquired and how it is to be used. Since we are interested in the use of natural language for communication with computers, we require from a formalism suggested for knowledge representation that it be s...

By definition, the reference of an indexical depends on the context of utterance. For example, the proposition expressed by I am hungry depends on who says this and when. Since Kaplan (1979), context dependence has been analyzed in terms of two parameters: an utterance context, which determines the reference of indexicals, and a formally unrelated assignment function, which determines the refer...

This paper addresses the general question of how eventualities should be localized in time. The more speciic question about the localization of states and events is discussed, too. For these questions the theory of tense and aspect in Discourse Representation Theory (DRT) is closely investigated, as far as relevant for single-sentence-discourses. The answers given here are mainly inspired by DR...

BACKGROUND Spatial working memory dysfunction has been suggested to be a cardinal feature of schizophrenia. But schizophrenia is heterogeneous in its clinical profile, course, and outcome. One fundamental contributor to this heterogeneity may be gender. No report has yet addressed gender differences in spatial working memory, as measured by the delayed-response task (DRT). METHODS We aggregat...

Demand-responsive Transport (DRT) is a popular topic in the field of transportation. The rolling horizon approach can be used to achieve an efficient operation DRT system context trip pre-booking. In this study, optimizer implemented and agent-based transport simulation framework. A series experiments are performed study performance approach. results provide general guidelines on how set up for...