En este artículo se describe el estudio realizado sobre las características del etiquetado de la estructura de discurso, según la Teoría de la Estructura Retórica, en los niveles inter-oracional e intra-oracional. El corpus etiquetado está compuesto por textos médicos escritos…

In the present work we study the hydroxide activation (NaOH and KOH) of phenol-formaldehyde resin derived CNFs prepared by a polymer blend technique to prepare highly porous activated carbon nanofibres (ACNFs). Morphology and textural characteristics of these ACNFs were studied…

This paper has as its main aim to analyse how corporate web pages can become an essential tool in order to detect strategic trends by firms or sectors, and even a primary source for benchmarking. This technique has made it…

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Los índices biométricos In-recs, In-recj e In-rech complementan la información obtenida en la base de datos JCR (Journal Citation Reports) con respecto a las publicaciones españolas, proporcionando el índice de impacto de estas publicaciones.

Els índexs biomètrics In-recs, In-recj i In-rech complementen la informació obtinguda en la base de dades JCR (Journal Citation Reports) respecte a les publicacions espanyoles, proporcionant l'índex d'impacte d'estes publicacions.

European species of the genus Phradis Förster, 1869 are reviewed. A new species from Spain, Phradis mediterraneus sp. n., is described and illustrated. A key to all 24 European species and data on distribution and biology of these species are…

An analytical approximate procedure for a class of conservative single degree-of-freedom nonlinear oscillators with odd non-linearity is proposed. This technique is based on the generalized harmonic balance method in which analytical approximate solutions have rational forms. Unlike the classical harmonic…

The analytical approximate technique developed by Wu et al for conservative oscillators with odd nonlinearity is used to construct approximate frequency-amplitude relations and periodic solutions to the dynamically shifted oscillator. This nonlinear oscillator is described by an equation of motion…

A second-order modified rational harmonic balance method is used for approximately solve the nonlinear differential equation that governs the oscillations of a system typified as a mass attached to a stretched elastic wire for which the restoring force for this…