Four different leaf extracts of B. microstachya var. massambabensis were studied to evaluate their antioxidant capacity by using three in vitro methods, with Ginkgo biloba and Trolox® as the standards. With the DPPH and ABTS·+ methods, the antioxidant activity of…

The NblS-RpaB signalling pathway, the most conserved two-component system in cyanobacteria, regulates photosynthesis and acclimatization to a variety of environmental conditions and is involved in negative regulation of high-light-induced genes. However, relevant regulatory details of the NblS-RpaB signalling pathway remain…

There are different approaches used by mathematics teacher educators to help pre-service primary teachers develop the useful skills and knowledge required to teach mathematics. One of these approaches is concerned to learning to notice relevant aspects in mathematics teaching. But…

In omplete information is a problem in many aspe ts of a tual environments. Further- more, in many s enarios the knowledge is not represented in a risp way. It is ommon to nd fuzzy on epts or problems with…

In this article we examine and expose some of the results of a research work based on the appropriation of knowledge through visual expression, activity attended by teachers and students outside the schooleducational method called "Open Classroom".After the investigation, it…

The amount of information stored in databases doubled at every 20 months. There is important knowledge stored in text databases. The aim of these article was to solve the problem of “searching from general to particular” (SGP) in document databases.…

AbstractObjectiveThe last two decades have seen major advancements in our understanding of some of the most common neurodevelopmental disorders in the field of child neurology. However, in the majority of individual patients, it is still not possible to arrive at…

Objective: To practice evidence-based medicine a core set of concepts must be mastered. Recognizing this, we sought to develop and assess a mini-course in evidence-based medicine for fourth-year medical students. Design: A two-hour curriculum on evidence-based medicine training was developed…

Concept maps are bi-dimensional representations of cognitive structures showing the hierarchies and the interconnections of concepts involved in a discipline or a subdiscipline. Concept maps can be done in different ways, but they are best done using computer software designed…

In this work two declarative approaches based on the BDI theory are studied, an agent programming language 3APL and an agent architecture that uses defeasible argumentation for knowledge representation and reasoning. Based on that study and considering that in 3APL…