The present invention relates to an electrode structure which can detect the electric current and optionally activate alarm signals in electrolytic cells for the electrodeposition of non-ferrous metals, for example for electrowinning of metals, in particular for the electrolytic production of copper and other non-ferrous metals proceeding from ionic solutions. The present invention further relates to a data acquisition system to be used in connection with said electrode structure.La presente descripción se refiere a la sal de fumarato cristalina de (S)-[3,4-difluoro-2-(2-fluoro-4-yodofenilamino)fenil][3-hidroxi-3-(piperidin-2-il)azetidin-1-il]-metanona. La descripción también se refiere a composiciones farmacéuticas que comprenden la sal de fumarato cristalina de (S)-[3,4-difluoro-2-(2-fluoro-4-yodofenilamino)fenil][3-hidroxi-3-(piperidin-2-il)azetidin-1-il]-metanona. La descripción también se refiere a métodos para tratar cánceres que comprenden administrarle a un paciente que lo necesita la sal de fumarato cristalina de (S)-[3,4-difluoro-2-(2-fluoro-4-yodofenilamino)fenil][3-hidroxi-3-(piperidin-2-il)azetidin-1-il]-metanona
