Mientras que los efectos de los alcaloides de Cinchona spp. sobre ciertos organismos han sido bien estudiados, no hay conocimiento de su actividad sobre las levaduras. Esto puede ser interesante, ya que la acción de los productos naturales representa una…

Purpose – The number of papers focusing on foreign companies doing business in China has increased significantly since the open-door policy came into effect in the late 1970s. Performance has been one of the most researched topics. This paper aims…

INFORMATION LOCATION AND INTERACTIVITY ARE TWO ATTRIBUTES OF DESKTOP VIRTUAL ENVIRONMENT (DVE) DESIGN THAT CAN BE EXPLOITED TO ENHANCE THE ABILITY OF LEARNERS TO ACQUIRE INFORMATION AND SKILLS THAT TRANSFER TO REAL WORLD. THE TERM €œINFORMATION LOCATION"" REFERS TO THE…

La Plata National University is making a great effort to support and encourage scientific, technologic and artistic research and innovation, maintaining its quality, as well as the development and knowledge transference that benefit society and generate new scientific, technologic and…

In this work five different ways of intervention, strategically articulated, on the social world, are established. And it includes two approaches regarding the realm of knowledge and that of social change. In the second approach, five basic categories are proposed:…

La tecnología digital tiene la capacidad de transformar la comunicación de las sociedades y ofrece nuevas posibilidades de conocimiento. Los sistemas digitales modernos deben entenderse como cualquier trabajo humano fundado en el conocimiento, una fuerza de producción nueva cuyo resultado…

The present article introduces a five-valued logic and a deductive system. Here, the logic presented is a relevant fragment of the @-logic, which is also a space-time logic. These five values correspond to the following semantics: unknown, possibly known but…

Based on the theoretical work of Ribes and López (1985) and on Ribes' formulations about intelligent behavior (Ribes, 1981, 1990), the categories of didactic discourse that facilitate its development, are described. These are: a) a varied drill with feedback by…

Based on the theoretical work of Ribes and López (1985) and on Ribes' formulations about intelligent behavior (Ribes, 1981, 1990), the categories of didactic discourse that facilitate its development, are described. These are: a) a varied drill with feedback by…

El D-002 es una mezcla de alcoholes alifáticos primarios superiores (tetracosanol, hexacosanol, octacosanol, triacontanol, dotriacontanol, tetratriacontanol) purificada de la cera de abejas con efectos antioxidantes, cuyos efectos sobre los niveles plasmáticos de hidroperóxidos totales (OHPT) no habían sido investigados. Este…