La baisse de plus en plus marquée de l’âge au premier rapport sexuel et l’augmentation de l’âge au premier mariage impliquent une durée plus longue d’exposition au risque des grossesses prénuptiales et aux infections sexuellement transmissibles incluant le VIH/sida. C’est…

El presente artículo ofrece los resultados de una investigación con una metodología
de carácter cuantitativo llevada a cabo en grandes empresas españolas, que abarcó un
conjunto de variables de diseño organizativo. En este caso, se corresponde al estudio de
la…

Media representations of massive open online courses (MOOCs) such as those offered by Coursera, edX and Udacity reflect tension and ambiguity in their bold promise of democratized education and global knowledge sharing. An approach to MOOCs that emphasizes the tacit…

In a learning system, multiple communities represent a networked structure of learning experiences. Individuals belong to multiple communities connected though complex relationships consisting of people, resources, rituals, and ties. Learning occurs as individuals traverse this network from one community to…

This work was done to meet the demand for modernizing the curriculum in agronomy. It is based on a documental review following the methodology of Hanel [et al.], in 1997. The results were: identification of the main problems in agriculture,…

arbon sources for biofuel production are wide-ranging and their availability depends on the climate
and soil conditions of the land where the production chain is located. Henequen (Agave fourcroydesLem.) is
cultivated in Yucatán, Mexico to produce natural fibers from the…

The reality of global climate changes creates the necessity of predicting how will be the climatic scenario in our planet and how it will affect the economic activities in the future. For some climatic variables the global climate models projections…

Time, memory and forgetfulness are recurring motifs in the work of the poets of the generation of the 50’s or generación del medio siglo. This article focuses on José Manuel Caballero Bonald’s personal revision of the concept of time, one…

The technological evolution has resulted in a series of benefits to the Virtual
Reality area. Now it is possible to represent knowledge in an interactive
way where visual, haptic and audible aspects are combined, allowing for the
improvement of…

The number and scope of faculty and institutions involved in academic entrepreneurship continues to expand, and this has signifi cant implications for universities, involving potentially wonderful opportunities but also dire risks. This paper looks beyond academic capitalism, a theory that…