Ambulatory electroencephalogram in children:a prospective clinical audit of 100 cases

Ambulatory electroencephalogram has been used for differentiating epileptic from nonepileptic events, recording seizure frequency and classification of seizure type. We studied 100 consecutive children prospectively aged 11 days to 16 years that were referred for an ambulatory electroencephalogram to a regional children's hospital. Ambulatory electroencephalogram was clinically useful in contributing to a clinical diagnosis in 71% of children who were referred with a range of clinical questions. A diagnosis of epileptic disorder was confirmed by obtaining an ictal record in 26% and this included 11 children that had previously normal awake and or sleep electroencephalogram. We recommend making a telephone check of the current target event frequency and prioritising those with typical events on most days in order to improve the frequency of recording a typical attack.

What is this thing called Historical Archaeology?

Historical archaeology, in its narrow temporal sense -as an archaeology of the emergence and subsequent evolution of the Modern world- is steadily taking pace in Spanish academia. This paper aims at provoking a more robust debate through understanding how Spanish historical archaeology is placed in the international scene and some of its more relevant particularities. In so doing, the paper also stresses the strong links that have united historical and prehistorical archaeology since its inception, both in relation to the ontological, epistemological and methodological definition of the first as to the influence of socio-political issues in the latter. Such reflection is partly a situated reflection from prehistory as one of the paper’s authors has been a prehistorian for most of her professional life.

Desde una arqueología inclusiva, por un pasado mejor. Un ensayo epistemológico y axiológico

En este trabajo se reflexiona sobre la necesidad de un marco epistemológico inclusivo que aborde la multivocalidad de los procesos históricos objeto de estudio y permita crear relatos históricos más plurales y representativos. Pero el relato sobre el pasado será mejor si, además de ser inclusivo a nivel epistemológico, también contribuye de alguna manera a mejorar la sociedad actual. Por ello se reclama una arqueología que incluya una preocupación axiológica y busque posibles ámbitos de aplicación para los resultados de sus investigaciones. Ejemplificamos esta reivindicación con un caso de estudio sobre cerámica, que subraya que los objetos cotidianos fueron y son utilizados en las estrategias de construcción social de la desigualdad. En este contexto se reclama la toma de consciencia de esta práctica en la actualidad y la renuncia a determinados recursos discursivos. Por ejemplo, se propone retomar el concepto inclusivo, este vez para oponerlo a la significación social del adjetivo exclusivo. Aunque todas estas reflexiones derivan de casos de estudio de arqueología histórica, pueden ser útiles a la arqueología en general, sin sesgo cronológico alguno.

A Non-catalytic Deep Desulphurization Process using Hydrodynamic Cavitation

A novel approach is developed for desulphurization of fuels or organics without use of catalyst. In this process, organic and aqueous phases are mixed in a predefined manner under ambient conditions and passed through a cavitating device. Vapor cavities formed in the cavitating device are then collapsed which generate (in-situ) oxidizing species which react with the sulphur moiety resulting in the removal of sulphur from the organic phase. In this work, vortex diode was used as a cavitating device. Three organic solvents (n-octane, toluene and n-octanol) containing known amount of a model sulphur compound (thiophene) up to initial concentrations of 500 ppm were used to verify the proposed method. A very high removal of sulphur content to the extent of 100% was demonstrated. The nature of organic phase and the ratio of aqueous to organic phase were found to be the most important process parameters. The results were also verified and substantiated using commercial diesel as a solvent. The developed process has great potential for deep of various organics, in general, and for transportation fuels, in particular.