Abstract

Several epistemological and methodological elements have been proposed as an alternative trend for contemporary science, grouped under the label of "new paradigm" and with different degrees of interarticulation. These elements suggest that a “nuova scienza” appears on evolution, demanding characteristic epistemological categories (as the category of the complexity), new theoretical models (as the "theory of chaos") and new logical ways of analysis (as the nonlinear mathematical models, the fractal geometry, the fuzzy logic and the net’s theory). Also on the field of Collective Health, several authors have defended the need of new paradigms. These proposals are being amplified and diffused with the purpose of promoting a specific scientific production, able to feed effectively a conceivable new paradigm. This article pretends to introduce briefly the main approaches that betoken some kind of paradigmatic change, in a general way, in the core of science. Also some of the various composing elements of the paradigm of the complexity are discussed, from its possible applications to the population’s health problems, trying to analyze these issues in the ambit of our specific interest and pointing out some intentions of producing empirical evidence for the analysis of the health’s situation, its effects and determinants from these approaches.