2009, Autores: Jorge Blajos, Patrick Lavelle, Dalva M. da Mota, Lucia Pitalluga, Sergio Salles Filho, Jorge Irán Vásquez.

Soybean powdery mildew (Erysiphe diffusa) was considered a minor disease in Brazil in the decades immediately after its identification. However, since the outbreak in 1996/97 in all cultivated areas the disease has become a constant threat to farmers and losses…

Volviendo al papiro griego del siglo III d.C. que recoge la leyenda de la diosa Tefnut
y que abordamos ya en el número 23-24 de esta misma revista, establecemos ahora una comparación entre su contenido y el contenido de la…

Can children genuinely create new knowledge, as opposed to merely carrying out activities that resemble those of mature scientists and innovators? The answer is yes, provided the comparison is not to works of genius but to standards that prevail in…

Des modèles de dysfonction érectile (DE) ont été développés et étudiés chez le rat. Cependant, peu de choses sont connues dans certains modèles présentant des facteurs de risque de la DE, en l’occurrence le rat soumis à une diète riche…

The Knowledge Society Network (KSN) “takes advantage of new knowledge media to maximize and democratize society’s knowledge-creating capacity” (www.ikit.org/KSN). This article synthesizes the principles and designs of this network which were initiated over 15 years ago, and presents an exploratory…

Gilbert Ryle (1949) divided knowledge into “know that” and “know how”, which is neatly appealing to many design and technology educators, and like many writers on developing the curriculum, Kahney (1993) made a distinction between declarative knowledge:

verbal knowledge,…

Cette thèse a pour objectif d’analyser les représentations du temps historique dans le Tableau de Paris (1781-1788) et le Nouveau Paris (1798) de Louis Sébastien Mercier et de faire voir comment elles se transforment sous l’impact de la Révolution française,…

Three classrooms of Grade 4 students from different schools and diverse backgrounds collaborated in early algebra research to solve a series of linear and quadratic generalizing problems. Results revealed that high- and low-achieving students were able to solve problems of…

La enseñanza de las ciencias naturales en la Educación Básica busca el desarrollo de un pensamiento

crítico y reflexivo acerca del ambiente por parte de los estudiantes. Sin embargo, las estrategias

didácticas utilizadas se centran en…