Abstract: Agent for oxidative dyeing of keratin fibers based on developers and couplers and containing at least one aldehyde of general formula (I) or (II) as well as the use of the aldehydes of formula (I) or (II) for increasing the color intensity of oxidative colorants and/or for shortening the time of exposure to oxidative colorants.

Abstract: The invention relates to a method for evaluating the bandwidth between a first point and a second point liable to exchange digital data packets in a telecommunications network including a plurality of sub-networks. The method according to the invention includes the following steps: for each transmission direction through at least one of said sub-networks, associating a same identifier with the quasi-simultaneously transmitted packets, time-stamping and recording the received packets, identifying and sorting the packets received with the same identifier, selecting the largest possible integral number m of groups of packets with the same identifier, measuring the time intervals separating the instants when the packets of the selected groups are received by the second point, calculating the bandwidth according to the number of packets of the selected groups and to said total transmission time of said packets.

Abstract: Processes for preparing mixed metal oxide catalysts suitable for partial oxidation of alkanes, alkenes and mixtures thereof, where in the processes comprise the steps of: providing an aqueous aerosol of one or more metal oxide catalyst precursors; and irradiating the aqueous aerosol of one or more metal oxide catalyst precursors with microwave energy. Optionally, the catalyst may be further modified using one or more chemical treatments, one or more physical treatments and one or more combinations of chemical and physical treatments, to further improve catalyst performance characteristics.

Abstract: A new process for the production of linear monocarboxylic acid esters with 6 to 26 carbon atoms, by reaction of vegetable oils or animal oils that may or may not be neutral, with monoalcohols of 1 to 18 carbon atoms, uses a catalyst that is selected from among: the combinations of zinc oxides and titanium oxides; the combinations of zinc oxide, titanium oxide and alumina; the combinations of bismuth and titanium oxides; and the combinations of bismuth oxide, titanium oxide and alumina. The process makes it possible to produce directly, in one or more stages, an ester that can be used as a fuel and a pure glycerin.

Abstract: The invention relates to a device for checking (1) a transmission line carrying a plurality of digital and/or analogue channels comprising a measurement block (14) designed to evaluate performances, search for faults and determine the quality of the line and services transmitted through the said line. According to the invention, the device also comprises a switching module (16) capable of selectively connecting the measurement block (14) only to the transmission channels to be checked and to keep other channels in the transmission line active.

Abstract: Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes utilizing using a mixed bed catalyst at flame temperatures in a short contact time reactor.

Abstract: A process that employs a heterogeneous catalyst comprising a zinc aluminate mixed oxide and having the following formula: ZnAl2O4, xZnO, yAl2O3 in which x and y each represent a number in the range 0 to 2, and in which the zinc aluminate is more particularly of the spinel type, makes it possible, by means of C1 to C5 monoalcohols, to: transesterify vegetable or animal oils having a natural free acidity, such as unrefined degummed rapeseed, soya, sunflower oils or exotic oils of the African oil, palm nut oil or coconut oil type, which are naturally rich in fatty acids; and simultaneously esterify their free acidity; so as to use phospholipid free and/or degummed unrefined acid oil with an acid number in the range 0.5 to 20, for example 1 to 15 and preferably 2 to 12, to produce esters, for example methyl esters, for use as fuels.

Abstract: The present invention relates to novel pyridazinone derivatives of the general formula (I) wherein A is A1 or A2; R is unsubstituted or at least monosubstituted C1-C10-alkyl, aryl, aryl-(C1-C10-alkyl)-, heteroaryl, heteroaryl-(C1-C10-alkyl)-, heterocyclyl, heterocyclyl-(C1-C10-alkyl)-, C3-C10-cycloalkyl, polycycloalkyl, C2-C10-alkenyl or C2-C10-alkinyl and Ar is unsubstituted or at least monosubstituted aryl or heteroaryl.

Abstract: The preparation of a crush-resistant transesterification catalyst of the formula:

Abstract: Agent for oxidative dyeing of keratin fibers based on developers and couplers and containing at least one aldehyde of general formula (I) or (II) 1

Abstract: The object of the invention is an agent for oxidatively dyeing keratin fibers, wherein it contains (a) at least one 4,5-diaminopyrazole derivative of Formula (I), (II) or (III) or its salt with organic or inorganic acids, as well as (b) at least one pyrazol-5-one derivative of the general formula (IV), (V) or (VI), or its salt with organic or inorganic acids,

Abstract: The present invention relates to novel pyridazinone derivatives of the general formula (I) 1

Abstract: A catalytic composition comprising at least one nickel compound mixed or complexed with at least one tertiary phosphine or a phosphite carrying a functional group, at least partly dissolved in a non-aqueous medium with an ionic nature resulting from bringing at least one aluminum halide into contact with at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, is useful for dimerizing, co-dimerizing and oligomerizing olefins. Functional groups include, but are not limited to, an amine, a cyclic amine, a nitrogen-containing heterocycle, an ester, an acid, an alcohol, a quaternary ammonium, a quaternary phosphonium, a sulfonium, a sulfonate or a phosphonate group.

Abstract: A compound named Amycomycin of the formula: is described, as well as its pharmaceutically acceptable salts and derivatives, in all their stereoisomeric and tautomeric forms. The compound is obtained by growing the microorganism Amycolatopsis species ST101170 (DSM 12216) and is useful as a pharmaceutical, particularly as an antibiotic.

Abstract: The object of the invention is an agent for oxidatively dyeing keratin fibers, wherein it contains (a) at least one 4,5-diaminopyrazole derivative of Formula (I), (II) or (III) or its salt with organic or inorganic acids, 1

Abstract: A catalytic composition comprising at least one nickel compound mixed or complexed with at least one tertiary phosphine or a phosphite carrying a functional group, at least partly dissolved in a non-aqueous medium with an ionic nature resulting from bringing at least one aluminum halide into contact with at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide is useful for dimerizing, co-dimerizing and oligomerizing olefins. Functional group include, but are not limited to, an amine, a cyclic amine, a nitrogen-containing heterocycle, an ester, an acid, an alcohol, a quaternary ammonium, a quaternary phosphonium, a sulfonium, a sulfonate or a phosphonate group.

Abstract: In order to carry out selective dimerization of propylene principally into branched dimers, a catalytic composition resulting from at least partly dissolving a nickel compound mixed or complexed with a tertiary phosphine carrying a functional group is used in a medium resulting from mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one aluminum halide and optionally at least one organometallic aluminum compound.

Abstract: The present invention relates to a compound named Vancoresmycin which is obtainable by cultivation of the microorganism HIL-006734 (DSM 12216), and to its pharmaceutically acceptable salts. The present invention further relates to a process for the production of Vancoresmycin, to the microorganism HIL-006734 (DSM 12216), to the use of Vancoresmycin and its pharmaceutically acceptable salts as pharmaceuticals, and in particular to their use as antibiotics, and to pharmaceutical compositions comprising Vancoresmycin or a pharmaceutically acceptable salt thereof.

Abstract: The present invention relates to a compound named Vancoresmycin which is obtainable by cultivation of the microorganism HIL-006734 (DSM 12216), and to its pharmaceutically acceptable salts. The present invention further relates to a process for the production of Vancoresmycin, to the microorganism HIL-006734 (DSM 12216), to the use of Vancoresmycin and its pharmaceutically acceptable salts as pharmaceuticals, and in particular to their use as antibiotics, and to pharmaceutical compositions comprising Vancoresmycin or a pharmaceutically acceptable salt thereof.

Abstract: In order to carry out selective dimerization of propylene principally into branched dimers, a catalytic composition resulting from at least partly dissolving a nickel compound mixed or complexed with a tertiary phosphine carrying a functional group is used in a medium resulting from mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one aluminum halide and optionally at least one organometallic aluminum compound.