Pacheco Siva

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The nanosized ferrite (Fe3O4) was synthesized and characterized by analytical techniques such as Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy, fluorescence spectroscopy and transmission electron microscopy (TEM). The structure-property relationship of starch was studied under three different pHs namely 3.8, 7.1 and 12.5. The(More)
There are few data about the history of electroconvulsive therapy (ECT) in many countries of the world, especially in developing ones as those of South America. This article offers a translation of an article published in 1941 by Dr Pacheco e Silva describing how ECT came to Brazil and its first use. He tells of how he learned about ECT during the 97th(More)
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