Abstract: A method is described for evaluating the severity of atrophic acne scars in a patient. Also described, is a device for implementing this method. The device can be in the form of a transparent support made of flexible plastic, with suitable dimensions for covering the face of the patient, the support being cross-hatched with same-size adjacent square marked by borders. The use of the device for evaluating the distribution of acne scars on the face of a patient is also described.

Abstract: A method is described that makes it possible to measure flushing, particularly in the context of the study of rosacea, and to distinguish normal flushing from pathological flushing. Also described, is the use of said method to study the effect of drug candidates, particularly against rosacea. The method can include: a) subjecting the subject to a flushing inducing stimulus; b) measuring the inflow of blood in the face of the subject during a time period covering the flushing; and c) calculating entropy of the inflow of blood.

Abstract: A cover plate (2) for electrical apparatus (1) includes at least one opening (22, 32) intended to provide access to at least one functional part (5) of the electrical apparatus and which is formed by superimposing a rear mounting plate (20, 30) fitted at the back with elements for mounting on an apparatus support (4) and a front finish plate (10) giving the cover plate an aesthetic appearance. The rear mounting plate includes on its front side a recessed housing (24) which completely houses the front finish plate, such that the front side (11) of the front finish plate extends flush with or is slightly back from the front side (21) of the rear mounting plate.

Abstract: A device for analyzing a hyper-spectral image, comprising at least one sensor able to produce a series of images in at least two wavelengths, a calculation means able to class the pixels of an image according to a two-state classing relation, the image being received from a sensor, and a display means able to display at least one image resulting from the processing of the data received from the calculation means. The calculation means comprises: a means for determining training pixels receiving data from a sensor, a means for calculating a projection pursuit able to effect an automatic division of the spectrum of the hyper-spectral image, and a means for producing a large-margin separation. The calculation means is able to produce data in which the classed pixels are distinguishable.

Abstract: The invention relates to a device for adjusting the raised pattern of at least one hyper-spectral image including at least one sensor capable of producing at least one hyper-spectral image in at least two wavelengths, a computing means capable of classifying the pixels of the hyper-spectral image derived from the sensor on the basis of a two-state classification relationship, and a display means capable of displaying at least one image on the basis of the classified pixels from the computing means. The computing means includes a means for adjusting the raised pattern on the basis of at least one reference image.

Abstract: This method for acquiring and processing data for detecting the change over time of changing lesions includes: successive data acquisitions according to different acquisition methods, so that, at each moment of acquisition, the user forms a set of data obtained according to respective acquisition methods; storage of the acquired data in a database; and displaying the data by selecting and displaying the selected data on a display screen. During displaying an item of data, the user inserts into an image being displayed at least one matching data item extracted from the database.

Abstract: This method for the detection of lesions includes: forming successive images of a surface to be analyzed; generating at least one profile of change as a function of the time of a parameter of the formed images; and comparing at least one generated profile with a lesion detection threshold value.

Abstract: A cover plate (2) for electrical apparatus (1) includes at least one opening (22, 32) intended to provide access to at least one functional part (5) of the electrical apparatus and which is formed by superimposing a rear mounting plate (20, 30) fitted at the back with elements for mounting on an apparatus support (4) and a front finish plate (10) giving the cover plate an aesthetic appearance. The rear mounting plate includes on its front side a recessed housing (24) which completely houses the front finish plate, such that the front side (11) of the front finish plate extends flush with or is slightly back from the front side (21) of the rear mounting plate.

Abstract: The invention consists of a new method for preparing perfluoroalcanecarboxylic and perfluoroalcanesulfonic acids in which ozone is made to react, in a protic environment, upon a perfluoroalkyl chain comprising at least one oxydizable chemical group.

Abstract: A MFI-based gallosilicate type catalyst is described.The catalyst is characterized by the following composition expressed by weight:a) 0.1 to 99.49% of a matrix,b) 0.5 to 99.99% of a zeolite having the following approximate chemical formula:M.sub.2/n O, Ga.sub.2 O.sub.3, xSiO.sub.2whereinM represents a proton and/or a metallic cation,n is the valence of said cation,x is a number ranging from 12 to 1,00,the zeolite of MFI structure synthesized in a fluoride medium having a fluorine content ranging from 0.02 to 1.5% by weight incorporated during synthesis.The catalyst is notably used in aromatization reactions of light C.sub.2 -C.sub.4 gases in the presence or not of olefins.

Abstract: An aluminosilicate type catalyst and its use in the aromatization of a C.sub.2 -C.sub.4 light-gas cut in the presence or not of olefins is described.The catalyst is characterized by the following composition expressed by weight:a) 0.01 to 10% by weight of galliumb) 0.1 to 99.49% of a matrixc) 0.5 to 99.99% of a zeolite having the following approximate chemical formula:M.sub.2/n O, Al.sub.2 O.sub.3, xSiO.sub.2whereinM represents a proton and/or a metallic cation,n is the valency of said cation,x is a number ranging from 12 to 1000,said zeolite having a MFI structure being synthesized, moreover, in a fluoride medium and having a fluorine content ranging from 0.02 to 1.5% by weight incorporated during synthesis.

Abstract: A MFI-based gallosilicate type catalyst is described.The catalyst is characterized by the following composition expressed by weight:(a) 0.1 to 99.49% of a matrix,(b) 0.5 to 99.99% of a zeolite having the following approximate chemical formula:M.sub.2/n O, Ga.sub.2 O.sub.3, xSiO.sub.2whereinM represents a proton and/or a metallic cation,n is the valency of said cation,x is a number ranging from 12 to 1000, the zeolite of MFI structure synthesized in a fluoride medium having a fluorine content ranging from 0.02 to 1.5% by weight incorporated during synthesis.The catalyst is notably used in aromatization reactions of light C.sub.2 -C.sub.4 gases in the presence or not of olefins.

Abstract: The present invention concerns a new decationized, dealuminated and stabilized zeolite of L type, characterized particularly by:a total SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of at least 8,a potassium content lower than 2.9% by weight,parameters a and c of the elementary mesh respectively lower than 1.836 nm and 0.754 nm,a nitrogen adsorption capacity at 77 K, for a partial pressure P/Ps of 0.19, higher than 11% by weight,a benzene adsorption capacity at 30.degree. C., for a partial pressure P/Ps of 0.25, higher than 8.5% by weight, anda lattice of mesopores whose radii, measured by nitrogen adsorption-desorption at 77 K according to the BJH method, range from 0.8 nm to 20 nm.