Introducción. La transformación del arroz (Oryza sativa L. ssp indica) mediada por Agrobacterium, representa una oportunidad para la investigación científica y el mejoramiento genético. Es necesaria optimización protocolo obtener mayor eficiencia de transformación. Objetivo. Evaluar diferentes factores que afectan genética en callos embriogénicos subespecie indica vía Agrobacterium tumefaciens....

We establish a bijection from the set of all permutations (of a given length) that avoid a pattern q and a context-sensitive language.

T paper finds preference reversals in measurements of ambiguity aversion, even if psychological and informational circumstances are kept constant. The reversals are of a fundamentally different nature than the reversals found before because they cannot be explained by context-dependent weightings of attributes. We offer an explanation based on Sugden’s random-reference theory, with different el...

In this paper we show how to learn rules to improve the performance of a machine translation system. Given a system consisting of two translation functions (one from language A to language B and one from B to A), training text is translated from A to B and back again to A. Using these two translations, differences in knowledge between the two translation functions are identified, and rules are ...

Introduction. This paper provides a contribution to understandings of information literacy regarding context and transferability of information practices. Specifically, the paper analyses the subset of information practices in situations of student protests and addresses issues of transfer of information literacy practice from a highly formal landscape to a highly non-formal and unstructured la...

This paper revisits some foundational questions concerning the abstract representation of a discourse context. The context of a conversation is represented by a body of information that is presumed to be shared by the participants in the conversation – the information that the speaker presupposes a point at which a speech act is interpreted. This notion is designed to represent both the informa...

In this paper, we provide a comprehensive survey of the space of possible analyses of the phenomenon of quantifier domain restriction, together with a set of considerations which militate against all but our own proposal. Among the many accounts we consider and reject are the ‘explicit’ approach to quantifier domain restriction discussed, for example, by Stephen Neale, and the pragmatic approac...

This paper presents an approach for representing, and providing computer support for, the configuration of interactive systems, particularly ubiquitous systems, that offers a flexible method for combining a wide range of configuration techniques. There are many existing techniques offering dynamic adaptation, ranging from fully automatic through context-sensitive to userdriven. We propose a mod...