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,…

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…

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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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.…

In the numerous agricultural information technologies, agricultural knowledge system has become an important part of the agricultural intelligent information technology (AIIT). This paper introduces the composition and working principle of the development tool for the binary tree-based knowledge system and…

Security has been major concern of mankind for decades. Various techniques have introduced to provide possible solutions and this list is growing everyday. Most of these techniques are preventive and are mainly used to raise alarms. With growing knowledge and…

This paper presents a proposal for an architecture that integrates knowledge discovery systems (automatic acquisition) and knowledge based systems (experts systems). This work formulates considerations over the viability of the implementation of this architecture according to the advance of the…

Palm leaves are an important resource for family households. The effect of harvest on leaf production, growth and fecundity of wild individual palm trees has been studied, but little is known about palm harvest in agro-forestry systems. In the Maya…

The introduction of technology and the widespread use of ICT in the wealthier nations have led teacher-educators to integrate technological applications in their teaching environment. The research investigated the new teaching modes created by teacher-educators in teacher-training
colleges in Israel,…