%0 Journal Article %T REFLECTIONS ABOUT THE SCIENCES %A Rodolfo Coutinho Moreira Xavier %J Brazilian Journal of Information Science %D 2010 %I Universidade Estadual Paulista %X It is reflected about the Sciences. First of all, it is examined what would be constitution of a theory, getting together theory and practice in a way to reflect about the process of scientific production. It is defended that as any knowledge the Sciences are necessarily linked to some epistemology, methodology and ideology. It is necessary to know the relations of power and its clash inside the Sciences, to know how they are produced, guiding and defining until the thought of their own professionals and scientists. %U Sciences; Epistemology; Methodology; Ideologies; Power Relations; Scientific Production.