Abstract: A method and system for facilitating HLR access includes receiving a query request from a query entity, processing the query request to yield an SS7 request message, dispatching the SS7 request message to a HLR, receiving an SS7 response message from the HLR, constructing a query response, and returning the query response to the query entity.

Abstract: Network system and methods for addressing and routing Short Message Service (SMS) messages from international callers to domestic callers using Global System for Mobile Communication (GSM) Mobile Application Part (MAP) Send Routing Info for Short Message (SRI for SM). The systems and methods create a virtual Home Location Register (HLR) and a virtual Mobile Switching Center (MSC) so that an intermediary, which is not itself a carrier, can handle such messages. The systems and methods generate and return an identifier associated with the intermediary as the location for an HLR and a MSC such that the international caller routes the SMS message to the intermediary.

Abstract: The present invention lies in the field of nitrocellulose nail varnishes and its subject is the use of an arylsulphonylurethane as film forming resin in these varnishes, which makes it possible in particular to avoid the release of formaldehyde, a carcinogenic compound which is formed when an arylsulphonamide-formaldehyde resin is employed.Another subject of the invention is new poly(arylsulphonylurethanes) containing from 2 to 5 arylsulphonylurethane groups and possessing a molecular mass of between 450 and 1500.

Abstract: The invention relates to a process of selective bioconversion of DINIS into MONIS-5, wherein the DINIS is added to a medium containing at least one microorganism possessing a glutathion transferase or an acellular extract of such a microorganism.

Abstract: The invention relates to the synthesis of isosorbide mononitrates.The process according to the invention consists in reacting a hydrazine derivative with isosorbide dinitrate, in a polar solvent medium. The reaction is preferably carried out at the reflux temperature of the solvent medium, with an excess of the hydrazine derivative. A preferred solvent medium is a mixture of tetrahydrofuran and methanol. The process leads to the preferential formation of isosorbitol-2-mononitrate, which is a coronary vasodilator.