8 9 A comparison was made between the composition of the recalcitrant organic matter (ROM) 10 isolated from a sandy forest soil as revealed by microwave assisted extractions and/or 11 hydrolyses and by usual pyrolysis techniques. Successive microwave irradiation treatments 12 were performed in H2O, 0.1 and 1 M HCl and 0.1 and 1 M KOH. At each step of the 13 treatment the insoluble residue was e...

39 The nucleus accumbens (NAc) has been shown to play a key role in the brain’s response to methylphenidate 40 (MPD). The present study focuses on neuronal recording from this structure. The study postulates that repetitive 41 exposure to the same dose of MPD will elicit in some rats behavioral sensitization and in others tolerance. 42 Furthermore, the study postulates that NAc neuronal activit...