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BACKGROUND Beef cows herd accounts for 70% of the total energy used in the beef production system. However, there are still limited studies regarding improvement of production efficiency in this category, mainly in developing countries and in tropical areas. One of the limiting factors is the difficulty to obtain reliable estimates of weight variation in mature cows. This occurs due to the inte...

A multimedia instruction that integrates different types of media is a way to maximize learning effectiveness, and three-dimensional lessons through a variety of multimedia will be able to offer a more realistic education as an innovative alternative to one-sided, lecture-oriented instruction. The growth of computer engineering has an extremely positive effect on early childhood education as we...

Teachers have many roles to fulfill. One of the most important roles is that of expert in the subject field they teach. Teachers should master the contents of the subject and should be able to deepen understanding and insight in these contents. Language teachers do not only teach the foreign language. They are also responsible for the teaching of the culture of the language. This article report...

Cultural heritage content is everywhere on the web: digital libraries, archives, and portals of museums or galleries. Cultural heritage document collections are characterized by contents related to a territory and its land’s history. In this context, the GeoTopia project is supported by the CNRS-TGE-Adonis and focuses on archive data sharing and interpretation. It consists in a Content Manageme...

The present work is aimed at studying the adsorption capacity of powdered Fuller’s earth for the removal of ferri/ferrous impurities found in commercial grade sodium sulphide. The latter is not suitable for the manufacture of pharmaceutical grade chemicals and dye chemicals. The author has carried out experiments taking different dosage of powdered Fuller’s earth as an adsorbent in the aqueous ...

Recent years have witnessed the explosion of online social networks (OSNs). They provide powerful IT-innovations for online social activities such as organizing contacts, publishing contents, and sharing interests between friends who may never meet before. As more and more people become the active users of online social networks, one may ponder questions such as: (1) Do OSNs indeed improve our ...

We illustrate the use of functional system speci cations and their re nement in the development of system components by a simple case study The development includes the modular speci cation re nement and veri cation of system components We start the development with an informal description of the tasks of the case study and then step by step carry out the tasks formally The informal requirement...