En este trabajo pretendo mostrar un episodio a mi parecer importante y poco atendido en relación con el cambio definitivo que se produce a finales de la Edad Media de los modos orales de comunicación a la irreversible consolidación de…

Dans cet article, l’auteur Ejan Mackaay présente les caractéristiques fondamentales du cyberespace et analyse les relations économiques et juridiques entre les acteurs du marché virtuel de l’Internet. Cette analyse s'inscrit en marge des travaux de Niva Elkin-Koren et Eli Salzberger,…

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Studies on the impact of Eucalyptus spp. on Brazilian soils have focused on soil chemical properties and isolating interesting microbial organisms. Few studies have focused on microbial diversity and ecology in Brazil due to limited coverage of traditional cultivation and…

El crecimiento del Internet, el aumento en los mercados globales y la transformación de
economías y sociedades industriales a economías de servicio basadas en el conocimiento y en la información han cambiado el rol de los sistemas de información (SI)…

O Brasil é o maior produtor mundial de café e o segundo maior mercado consumidor, portanto, a cultura do cafeeiro tem grande importância cultural e socioeconômica para o país. Entre os limitantes na produtividade estão, principalmente, as doenças, as pragas,…

Asian soybean rust caused by Phakoprsora pachyrhizi is one of the most important diseases for soybean cultivation. The disease causes yield loss as high as 80%. Until now, fungicide applications were most reliable control measure. However, farmers often lose timing…

This paper deals with lifelong learning. Based on a three-year case study it provides evidence of innovations in this area. The paper aims to add to the body of work in blended learning by providing evidence of knowledge, persuasion, decision,…

This paper presents a group of elements to improve the teaching and learning in technological education, applied to Information and Communication Technologies (ICT). These elements are based on some contributions issued from contemporary education models, namely, the thematic approach, meaningful…

Document classification has already been widely studied. In fact, some studies compared feature selection techniques or feature space transformation whereas some others compared the performance of different algorithms. Recently, following the rising interest towards the Support Vector Machine, various studies…