The invention relates to a macro-porous composite that can be used as a bone reconstitution material characterised in that it is made up of a combination of synthetic aragonite and at least one medicinal substance such as notably, an antibiotic. The synchronization loop of each station on the shared media based network considers only synchronization signals received having a time phase earlier than the time phase of its internal clock. The variables measured on the wheel side or the evaluated measurement results thereof are used to correct the variables measured on the vehicle side andor the determined wheel state variables. Calls to be converted to IP protocol are routed to a VoIP platform. A treated feedstock substantially free of said polar compounds is withdrawn from the adsorption zone and fed to an alkylation zone for contact under liquid phase alkylation conditions with an alkylating agent in the presence of an alkylation catalyst.