The object of this work was to verify the utility of a level IV fugacity model to simulate the environmental fate of the insecticide carbofuran when employed in the cultivation of irrigated rice. The model simulated the dynamic distribution of…

ABSTRACT: Despite of all modem communications tools, difficulties of dialogue still exist between technicians and local community members when dealing with natural resources. This is related to many factors, from the predominantly technical formation of the teachers and researches to…

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Of the many "unconsidered trifles" found amidst Shelleyiana and within Shelley's notebook jottings, this article selects eight examples, spanning his authorial career (1810-1822). Each involves a problem involving attribution, or decipherment, or source identification, which the author believes herself to…

El siguiente proyecto de tesis destaca la importancia de rescatar el valor patrimonial de una edificación ubicada en el Centro Histórico de Quito, con el fin de aportar una respuesta innovadora en el campo de la vivienda, además de una…

of the remaining 263 species, we arrived at a specieslevel identification for 242, and identified the remainder to genus (19) or family (2). The recent discovery of these ornithological texts and paintings offers a unique view of the history of…

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Using the underlying idea of the current-mode control, a new dynamical, sliding-mode control for the boost dc-dc converter is proposed. Such controller is easy to design, robust under load and input voltage variations, exhibits fast response, does not depend on…

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En el presente escrito intentamos analizar la obra del militar,
viajero y geógrafo italiano Agustín Codazzi, quien vino a jugar un
papel fundamental en el proceso de fundación de la nación venezolana
entre 1830-1850. Igualmente, ambicionamos hacer una aproximación
al…