JBCS

The paper highlights the importance of four sp²-based elemental carbon structures, namely graphite, carbon black, carbon nanotubes and graphene, in the economical, industrial and scientific sovereignty of Brazil.

A celebration of the sesquicentennial of the Periodic Table of the Elements, from the origins to the 63 elements in Mendeleev's table and its evolution to the present 118-element table.

Manganese: a relevant mineral resource of Brazil from the end of the XIX^th century.

Analyzing and removing the base drift phenomenon of Hadamard transform technique.

Polar extracts of Copaifera multijuga plant parts (leaves, branches and barks) were analysed by direct insertion in ESI-QqQ-MS and MS² fragmentation. Several polyphenols were suggested and the metabolic profiles analysed by PCA.