Este artículo reporta el trabajo de investigación realizado en base a datos extraídos de la Encuesta Anual realizada por la CESSI durante el año 2007 entre organizaciones dedicadas al desarrollo de Software en Argentina. Si bien la temática de mejora…

Biofouling is the colonization of man-made substrata by sessile organisms. The aim of this paper is to evaluate the performance of two antifouling saturated copper coating. Bioassays were can-ied out at a harbor in Argentine (38°02'S-57°32'W). During six months, one…

In this study we use cointegration methods to investigate the relationship between the variables of the Ohlson model (stock price, earnings per share and book value) with panel data. The cointegration tests were applied at individual and group level (by…

The k nearest neighbor (k-NN) classifier has been extensively used in Pattern Recognition because of its simplicity and its good performance. However, in large datasets applications, the exhaustive k-NN classifier becomes impractical. Therefore, many fast k-NN classifiers have been developed;…

The genus Acroleucus Stål from México is revised. Two new species A. calvatus and A. tensus are described and illustrated. New distribution records are presented, as well as comments on the host plants for some of the species. A revised…

We describe a technique for using Bode plots in microscopic interferometry, in particular as applied to the three Gaussian beam interferometer recently reported in the literature. The technique is used in a similar manner to its application to an electric…

Power systems monitoring is particularly challenging due to the presence of dynamic load changes in normal operation mode of network nodes, as well as the presence of both continuous and discrete variables, noisy information and lack or excess of data.…

The analogic pantograpIt is att apparatus wItic/t allows tIte con tinuous recording of any organism’s displacement witItin an experimental environment. Several interesting analyses can be rnade on tIte obtained record wIticIt allow to get more precise and comple¬te infor,nation about…

Sobre la base de que la conducta de contar es un componente básico para el desarrollo de conceptos matemáticos, el presente estudio analiza comparativamente los efectos de algunas propiedades de conjuntos de objetos tales como homogeneidad-heterogeneidad, orden-desorden, movilidad-estaticidad, sobre la…

La antigua controversia entre etólogos y psicólogos sobre conducta innata y aprendida ha conducido al análisis de la ontogenia del comportamiento. Un área importante de la investigación contemporánea sobre ontogenia se refiere a aspectos del aprendizaje que sean adaptativos, en…