The preferred temperature (PT) of Poecilia sphenops (Pisces, Poeciliidae) (n = 240, 1.13 +/- 0.06 g wet weight, 3.26 +/- 0.88 cm standard length) from Presa Piedra Azul, Oaxaca, Mexico, was measured at acclimation temperature of 20 degreesC, 23 degreesC,…

While biologists have been aware of the existence of native Mexican trouts for over a century, they have received little study. The few early studies that did muchmore than mention their existence began in the 1930s and continued into the…

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Abstract. The great contemporary organizational challenge for enterprises is to create a conceptual and methodological framework allows the management of knowledge by means of networks designed for social interaction. This statement is based on the premise that the competitive drive…

La planification de la politique économique au Brésil a été proposée dans les années 1950 avec le but de promouvoir l'indépendance et le développement économique du pays. Cette planification serait réalisée grâce à l'intervention de l'État par le contrôle de…

Nueva inscripción en lengua y escritura celtibéricas presumiblemente procedente de Torrejoncillo del Rey (Cuenca), conocida sólo por fotografías, ya que actualmente se halla en posesión de un particular. De confirmarse la autenticidad de la pieza y la lectura propuesta de…

Knowledge acquisition for systems based on knowledge can be called knowledge engineering, according to Feigenbaum (1980) who used the term to describe the reduction of a wide context of knowledge for a set of facts and rules. The term Knowledge…

Information and Communications Technologies (ICTs) are playing a significant role in
economic, political and cultural development. The relationship between technologies
supporting information processing and distribution, and the application of that knowledge
for development purposes has only recently come into focus.…

Las dificultades para evaluar el conocimiento estratégico han estado relacionadas principalmente con el uso de pruebas descontextualizadas, que no requieren ponerlo en juego; por esto el interés por comprobar que las tareas auténticas de escritura ofrecen ventajas para ello. En…

The serious, probably devastating problems with which all cultures of the world are grappling are discussed, and the question of what sorts of scientific knowledge are needed to resolve these problems is considered. The knowledge now available in the behavioral…