Alternativas al propanil para controlar Echinochloa colona (L.) Link en arroz de temporal

Dinámica de la penetración de tecnologías alternativas para vehículos automotores y su impacto en las concentraciones de carbono atmosférico

Characterization of aryl acylamidase activity from propanil-resistant barnyardgrass (Echinochloa crus-galli [L.] Beauv.)

The enzyme, aryl acylamidase, was characterized in propanil-susceptible and propanil-resistant barnyardgrass with respect to kinetic parameters, the effects of inhibitors, and the levels of activity in darkand light-grown tissues. The enzyme reaction in the resistant tissue preparation proceeded linearly with time over a 5 h time course, while activity in the susceptible tissue preparation was ...

Validación de Métricas para Esquemas Conceptuales como Indicadores de Calidad en Modelos Orientados al Objeto

Trad:.cionalmente, el desarrollo de producros soare de colt.dad ha estado basado en el estudio Tel c6digo impLementado. Puesta de manifiesto la importancia de las etapas tempranas de andLisis para el aseguramz-ento de la caLz`dad, las me"tricas deben aumentar su nine[ de abstraccz-6n para referirse a esquemas (modeLos) conceptuaLes~ Estas nuevas medidas deben ser vaLz-dadas te6rz.ca y empz rz.c...

Categorización de texto sensible al coste para el filtrado de contenidos inapropiados en Internet

The access to inapropiate Internet content is an increasing problem that can be approached as a cost-sensitive Automated Text Categorization task. In this paper, we report a series of experiments that compare a representative range of learning algorithms and methods for making them cost-sensitive, on two Web pages collections in Spanish and English. The results of our experiments are promising.

Modelado de la penetración de vehículos particulares con fuentes alternativas de energía al mercado colombiano

In this work we present a study about the issues related to the penetr ation of alternative fuel vehicles in the colombian mar ket. Currently there is a need to change the vehicle global market to cleaner energy sources in order to prevent an increase in global warming. In the long run, the goal is to replace fossil fuels with green ones. We implemented this in a ...