Abstract: A method to develop a computer program, including providing a visual environment for building a visual representation of the computer program, the visual representation including at least one functional graphic element representing a computer operator of the program and including at least one input for supplying the operator with an incoming datum, the visual representation also including a plurality of graphic stream elements each representing a respective datum intended to be processed by the operator, and at least one instantiating graphic element connected to an input of the functional graphic element and to each of the graphic stream elements, the method also including the implementation of the computer program, during which the computer operator is instantiated a number of times equal to the number of graphic stream elements, each instance of the operator having, as incoming data, a respective datum from the data represented by the graphic stream elements.

Abstract: A system for developing a railway signalization program including a programming module in text language for the programming, by at least one user, of at least one computer operator, and a memory for the storage of the or each programmed computer operator using the programming module, the system also including a visual environment for the presentation, in the form of a functional graphic element, of at least one computer operator stored in the memory, the visual environment being suitable for allowing the construction, by at least one user, of a visual representation of the railway signalization program from the or each functional graphic element, the system further including an implementation system able to implement the railway signalization program based on the visual representation.

Abstract: A method to develop a computer program, including providing a visual environment for building a visual representation of the computer program, the visual representation including at least one functional graphic element representing a computer operator of the program and including at least one input for supplying the operator with an incoming datum, the visual representation also including a plurality of graphic stream elements each representing a respective datum intended to be processed by the operator, and at least one instantiating graphic element connected to an input of the functional graphic element and to each of the graphic stream elements, the method also including the implementation of the computer program, during which the computer operator is instantiated a number of times equal to the number of graphic stream elements, each instance of the operator having, as incoming data, a respective datum from the data represented by the graphic stream elements.

Abstract: A system for developing a railway signalization program including a programming module in text language for the programming, by at least one user, of at least one computer operator, and a memory for the storage of the or each programmed computer operator using the programming module, the system also including a visual environment for the presentation, in the form of a functional graphic element, of at least one computer operator stored in the memory, the visual environment being suitable for allowing the construction, by at least one user, of a visual representation of the railway signalization program from the or each functional graphic element, the system further including an implementation system able to implement the railway signalization program based on the visual representation.

Abstract: Dendrimers with monophosphonic or bisphosphonic terminations for the treatment of inflammatory diseases.

Abstract: The present invention relates to a multi-component catalytic system that can be used for the cis-1,4 stereospecific polymerization of conjugated dienes. The system is based on: (i) a rare-earth complex of Formula (II) Ln(A)3(B)n, Ln being a rare-earth metal, A a ligand, B a Lewis base or a solvent molecule and n a number from 0 to 3; (ii) an alkylating agent; (iii) a compound based on an aromatic ring and having at least two heteroatoms chosen from the elements O, N, S, P, and corresponding to the Formula (III): in which the R groups each denote hydrogen, an alkyl radical optionally comprising one or more heteroatoms (N, O, P, S, Si) or one or more halogen atoms, a halogen atom, a group based on one or more heteroatoms (N, O, P, S, Si); x and y are integers from 0 to 6; D is a group having a chemical function, one of the atoms of which has a non-bonding pair; L being an atom from column 1 of the Periodic Table.

Abstract: An activated preformed catalytic system for the 1,4-cis stereospecific polymerization of conjugated dienes based on at least: one or more preformation conjugated diene monomers, one or more salts of one or more rare-earth metals of one or more acids chosen from an organic phosphoric acid and an organic carboxylic acid, and a mixture thereof, one or more alkylating agents consisting of one or more alkylaluminiums of formula AlR3 or HAlR2, in which R represents an alkyl radical and H represents a hydrogen atom, one or more halogen donors consisting of an alkylaluminium halide, and one or more compounds corresponding to formula (I) below:

Abstract: La present invention relates to a multi-component catalytic system that can be used for the cis-1,4 stereospecific polymerization of conjugated dienes. The system is based on: (i) a rare-earth complex of Formula (II) Ln(A)3(B)n, Ln being a rare-earth metal, A a ligand, B a Lewis base or a solvent molecule and n a number from 0 to 3; (ii) an alkylating agent; (iii) a compound based on an aromatic ring and having at least two heteroatoms chosen from the elements O, N, S, P, and corresponding to the Formula (III): in which the R groups each denote hydrogen, an alkyl radical optionally comprising one or more heteroatoms (N, O, P, S, Si) or one or more halogen atoms, a halogen atom, a group based on one or more heteroatoms (N, O, P, S, Si); x and y are integers from 0 to 6; D is a group having a chemical function, one of the atoms of which has a non-bonding pair; L being an atom from column 1 of the Periodic Table.