These The learning process is subject to continuous changes due to the changing needs of users. These changes are most often accompanied by new technologies which are constantly appearing in our modern computerized society. The Internet has allowed the optimization of the learning process through supported learning platforms, in addition to this, the dissemination of mobile devices such as P.D....

the polarographic reduction of aromatic carbodiimides in anhydrous aprotic solvents goes through a carbene intermediate by a diffusion controlled process in two one-electron steps. the first step is the rate-determining step and converts the carbodiirnide to a radical anion (6) that reduces further by a fast one-electron step to a carbene dianion intermediate (7). this abstracts an oxygen, alon...