2009, Resumo.

The occurrence of deoxynivalenol (DON) was evaluated in 113 wheat samples from the northern and central/ southwestern regions of Paraná State, Brazil during the 2008 and 2009 growing seasons, and this rate of occurrence was used to estimate the DON…

The anthropogenic dark earths (ADE, Terra Preta de Índio or terra preta arqueológica, as are often referred to in Portuguese) feature unique properties that are interesting not only from a pedological point of view but have important agronomic and economic…

Descripción completa.

Neural network applications in microwave engineering have been reported since the 1990s. Description of artificial neural
networks and their key issues, namely architectures, paradigms, training methods, data sets formation, learning and
generalization errors, learning speed, etc., in the context of…

En el artículo se publican algunas noticias inéditas sobre José Bermúdez de
Castro, como la fecha de su nacimiento y de su muerte, y se hace un estudio general
de sus colaboraciones en La Revista Española, la mayoría de crítica…

Muchos son los factores que determinan la dinámica de poblaciones de plantas entre los cuales hay demográficos (variabilidad ambiental,
densidad poblacional, etc.) y genéticos (variabilidad genética de los individuos, deriva genética y/o depresión por consanguinidad). Entender
los efectos de esos…

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Human and social studies on emotions are diversely interested in the reality emotions signify. Within this field, the discourse analysis approach focuses its attention on the linguistic expression of emotions and cannot thus extend its evaluation on psychological or sociological…

Data quality issues have taken on increasing importance in recent years. In our research, we have discovered that many “data quality” problems are actually “data misinterpretation” problems – that is, problems with data semantics. In this paper, we first illustrate…