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Our recent work analyses the accuracy of group recommenders when using information about the personality and the social connections between the members of the group. The goal in this paper is the use of personality and trust as the mean to define alliances to reach agreements inside a group of people. The approach reproduces the behaviour of real users when negotiating a common item to consume using three variables: personality, trust and personal preferences. We run an experiment in the movie recommendation domain where we use a personality test to identify the group leaders and test the number of people they are able to convince about a certain item to consume.

In this paper we introduce our application HappyMovie, a Facebook application for movie recommendation to groups. This system takes advantage of social data available in this social network to promote fairness for the provided recommendations. Group recommendations are based in the individual satisfaction of each individual. The (in)satisfaction of users modifies the typical aggregation functions used to estimate the value of an item for the group. This paper proposes a memory of past recommendations to compute the satisfaction of users when similar items (movies, in this case) are recommended several times.

10 pages, 5 figures, [EN]Harmful algal blooms of phytoplankton organisms are recurring events in coastal waters. Many HAB species have complex life cycles, including stages with markedly different morphological and physiological characteristics, i.e. single cells and colonies, alternation between dormant/ quiescent phases, growth stages responsible for biomass increase and benthic cysts and other resting stages capable of withstanding hostile environmental conditions. Life cycles have important implications for the occurrence and bloom dynamics of harmful species. In this study, we present the main characteristics of the life cycle for the dinoflagellate and diatom group, with the emphasis in the more recent and relevant results., [ES]Las proliferaciones algales nocivas (PANs) son eventos recurrentes en aguas costeras de todos los países. Muchas especies algales tienen ciclos de vida complejos que incluyen fases con características morfológicas y fisiológicas muy diferentes. Por ejemplo: células y colonias, alternancia entre fases de dormición, tasas de crecimiento responsables de un incremento notable de la biomasa y quistes de resistencia. Los ciclos de vida tienen implicaciones importantes en la ocurrencia y la dinámica de las proliferaciones de las especies nocivas. En este trabajo se presentan las características principales de los ciclos de vida de los dinoflagelados y las diatomeas, haciendo énfasis en los aspectos relevantes y más recientes., Agradecemos la financiación de la Comunidad Europea del proyecto FP6 SEED (Life cycle transformations among HAB species, and the environmental and physiological factors that regulate them, GOCECT-2005-003875). E. Garcés disfruta de un contrato “Ramón y Cajal” del Ministerio de Educación y Ciencia de España. R. Figueroa tiene un contrato I3P del Consejo Superior de Investigaciones Científicas de España. S. Quijano disfruta de una beca PROMEP de la Secretaría de Educación Pública, México y Universidad de Colima, México.

To present the fitest classification and the imaging peculiarities of the malformations of cortical development, most of which have been related with the epilepsy origin.The study is based on an anatomical-histological classification scheme that shows three great groups of malformations of cortical development: 1. Malformations due to abnormal neuronal and glial proliferation. 2. Malformations due to abnormal neuronal migration. 3. Malformations due to abnormal cortical organization.The result of these abnormalities of the cortical development is the presence of several anatomical histological entities, actually perfectly identified by the magnetic resonance (MR), especially with the new high resolution methods. The most frequent entities, such as polymicrogyria, lissencephaly, pachygyria, schizencephaly, cerebral heterotopia (cortical, subcortical or subependymal), and other rarer types are reviewed according with the numerous references of the literature and the findings observed in the cases of our series of about one hundred patients which includes cases of every type of malformation.MR is a conclusive study in order to identify and classify the malformations of cortical development, most of which are associated with neurological disturbances: epilepsy, mental retardation, language and/or behavioral problems or motor dysfunction.