Abstract: A buffer solution includes methanol and the at least one fluoroalkyl surfactant selected from perfluorocarboxylic acids, perfluorosulfonic acids and their salts. A method for detecting and quantifying, in vitro, vitamin D and/or at least one vitamin D metabolite in a biological sample includes treating the sample by incorporating at least one fluoroalkyl surfactant and methanol so as to dissociate the vitamin D and/or its metabolite(s) to be detected from vitamin D binding protein; and detecting and quantifying vitamin D and/or at least one of its metabolites, in particular by immunoassay. A kit for detecting and quantifying vitamin D and/or at least one vitamin D metabolite by immunoassay and including the solution is provided.

Abstract: The invention relates to a meteorological technique, and more specifically relates to a method for estimating a precipitation rate, which involves measuring, by means of a bipolar radar, the differential phase and the reflectivity of a radio wave, over a travel radius interval [r0, r1] where r0 and r1 are two points of the line of sight, where r0 coincides with a 0° C. isotherm in the case of snowfall, and determining the value(s) of the adjustment parameter(s) of a model of an intercept parameter N0* in accordance with r and a condition being the value in r0 of the intercept parameter varying in accordance with the radius and the adjustment parameter(s), which minimise, in the travel radius interval [r0, r1], a deviation between the differential phase difference between r and r0 and a function of the reflectivity Z, the condition N0*(r0) and the adjustment parameter(s).

Abstract: The invention relates to a meteorological technique, and more specifically relates to a method for estimating a precipitation rate, which involves measuring, by means of a bipolar radar, the differential phase and the reflectivity of a radio wave, over a travel radius interval [r0, r1] where r0 and r1 are two points of the line of sight, where r0 coincides with a 0° C. isotherm in the case of snowfall, and determining the value(s) of the adjustment parameter(s) of a model of an intercept parameter N0* in accordance with r and a condition being the value in r0 of the intercept parameter varying in accordance with the radius and the adjustment parameter(s), which minimise, in the travel radius interval [r0, r1], a deviation between the differential phase difference between r and r0 and a function of the reflectivity Z, the condition N0*(r0) and the adjustment parameter(s).

Abstract: A buffer solution includes methanol and the at least one fluoroalkyl surfactant selected from perfluorocarboxylic acids, perfluorosulfonic acids and their salts. A method for detecting and quantifying, in vitro, vitamin D and/or at least one vitamin D metabolite in a biological sample includes treating the sample by incorporating at least one fluoroalkyl surfactant and methanol so as to dissociate the vitamin D and/or its metabolite(s) to be detected from vitamin D binding protein; and detecting and quantifying vitamin D and/or at least one of its metabolites, in particular by immunoassay. A kit for detecting and quantifying vitamin D and/or at least one vitamin D metabolite by immunoassay and including the solution is provided.

Abstract: At least one fluoroalkyl surfactant and of at least one alcohol having 1 to 4 carbon atoms are used for dissociating vitamin D and/or a vitamin D metabolite from vitamin D binding protein. A solution comprising the at least one fluoroalkyl surfactant and at least one alcohol is provided. A method for detecting and quantifying, in vitro, vitamin D and/or at least one vitamin D metabolite in a biological sample includes treating the sample by incorporating at least one fluoroalkyl surfactant and at least one alcohol having 1 to 4 carbon atoms, so as to dissociate the vitamin D and/or its metabolite(s) to be detected from vitamin D binding protein; and detecting and quantifying vitamin D and/or at least one of its metabolites, in particular by immunoassay. A kit for detecting and quantifying vitamin D and/or at least one vitamin D metabolite by immunoassay and including the solution is provided.

Abstract: At least one fluoroalkyl surfactant and of at least one alcohol having 1 to 4 carbon atoms are used for dissociating vitamin D and/or a vitamin D metabolite from vitamin D binding protein. A solution comprising the at least one fluoroalkyl surfactant and at least one alcohol is provided. A method for detecting and quantifying, in vitro, vitamin D and/or at least one vitamin D metabolite in a biological sample includes treating the sample by incorporating at least one fluoroalkyl surfactant and at least one alcohol having 1 to 4 carbon atoms, so as to dissociate the vitamin D and/or its metabolite(s) to be detected from vitamin D binding protein; and detecting and quantifying vitamin D and/or at least one of its metabolites, in particular by immunoassay. A kit for detecting and quantifying vitamin D and/or at least one vitamin D metabolite by immunoassay and including the solution is provided.

Abstract: A method for manufacturing a device to dissipate the thermal energy produced by electronic components embedded in a printed circuit card, such method consisting in depositing on the card a first layer of a first thermally conductive and electrically insulating material to cover at least the connecting tabs for the electronic components to be cooled, and putting this first layer in contact with a metallic drain connected to a thermal mass to drain the calories towards the exterior of the card, wherein the method consisting is making the drain in the form of a flexible porous metallic structure, and in depositing on the drain a second layer of a second material that adheres to the first layer through the pores of the drain to hold the latter in place on the card.

Abstract: Method for applying a protective coating to the components on a printed circuit board, said coating being comprised of a polymerizable material such as a resin, characterized in that it consists in preparing the material of which the coating is composed from an initial mixture of at least two ingredients (A, B) and adding to this initial mixture at least one third ingredient (C) in a variable quantity in order to vary the viscosity of the initial mixture according to the type of component to be protected during the coating of the printed circuit board components.