Abstract: A cloning and/or sequencing vector enables recombinant clones to be selected directly. The vector encodes a fusion protein which includes a protein poison.

Abstract: The invention relates to the use of a molecule, alone or in combination, chosen from the group of molecules having a simultaneous antagonist action on the alpha1-noradrenergic, glutamatergic NMDA and serotoninergic 5HT2 receptors, for the preparation of a medicament intended for treating pathologies of the central nervous system.

Abstract: The present invention relates to the use of silymarin, or of the main constituents thereof alone or as a mixture, chosen from silybin (or 2,3-dihydro-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-6-(3,5,7-trihydroxy-4-oxobenzopyran-2-yl)benzodioxine), isosilybin, silydianin, silychristin, silandrin, silymonin and taxifolin, isolated enantiomers thereof and also salts thereof, for the manufacture of compositions for inducing, restoring or stimulating pigmentation of the skin, body hair or head hair. The invention also relates to the use of these agents for the manufacture of compositions for preserving the integrity of the hair, for limiting its loss and for stimulating hair regrowth. Silymarin or the constituents thereof alone or as a mixture are obtained by extraction of a plant of the genus Silybum.

Abstract: The invention relates especially to novel stereospecific derivatives of 2,3-benzodiazepine type as inhibitors of phosphodiesterases, especially 2 and 4, and uses thereof in the therapeutic field, most particularly for preventing and treating pathologies involving a central and/or peripheral disorder.

Abstract: A cloning and/or sequencing vector enables recombinant clones to be selected directly. The vector encodes a fusion protein which includes a protein poison.

Abstract: The invention concerns novel substituted pyrazolo[1,5 A]-1,3,5-triazine derivatives and some of their structural analogues, and their therapeutic uses, more particularly for preventing and treating pathologies involving central and/or peripheral neuronal degeneration. The invention also concerns methods for preparing same and novel synthesis intermediates. The compounds of the invention correspond more particularly to general formulae (Ia) and (Ib).

Abstract: A cloning and/or sequencing vector enables recombinant clones to be selected directly. The vector encodes a fusion protein which includes a protein poison.

Abstract: An air diffuser for an air distribution system is disclosed comprising a first and a second border member. Plural spreaders interconnect the first and second border members thereby defining an airflow aperture therebetween. A pattern controller is slidably disposed between the plural spreaders for controlling the volume of airflow through the airflow aperture. The pattern controller is pivotable within the airflow aperture for controlling the direction of airflow through the airflow aperture.

Abstract: An improved air diffuser for an air distribution system is disclosed comprising a first and a second border member. Plural spreaders interconnect the first and second border members thereby defining an airflow aperture therebetween. A pattern controller is slidably disposed between the plural spreaders for controlling the volume of airflow through the airflow aperture. The pattern controller is pivotable within the airflow aperture for controlling the direction of airflow through the airflow aperture.

Abstract: An air diffuser for an air distribution system comprising a first and a second border member. Plural spreaders interconnect the first and second border members thereby defining an airflow aperture therebetween. A pattern controller is slidably disposed between the plural spreaders for controlling the volume of airflow through the airflow aperture. The pattern controller is pivotable within the airflow aperture for controlling the direction of airflow through the airflow aperture.

Abstract: A cloning and/or sequencing vector enables recombinant clones to be selected directly. The vector encodes a fusion protein which includes a protein poison.

Abstract: A cloning and/or sequencing vector (1) comprises a nucleotide promoter sequence (3) and a nucleotide sequence (4) coding for a fusion protein active as a poison, which nucleotide sequence (4) is obtained by fusion of a coding nucleotide sequence (5) containing several unique cloning sites with a nucleotide sequence (6) coding for a poison protein, wherein the nucleotide sequences (3) and (4) are incorporated in an autonomous replication vector (2).

Abstract: A method and device are provided for encoding-decoding an HD digital television signal into a narrow band encoded signal. The HD digital television signal is representative of high definition images sampled at a frequency f1, and the narrow band encoded signal corresponds to a narrow band signal sampled at f2, wherein f2<f1. Narrow band encoding is achieved by horizontal compression by decimation of the image lines of the HD digital television signal so as to bring the number N1 of useful pixels per image line to a value N2=.alpha. of the sampling frequencies, so as to thus form an encoded signal representative of an image line and obtain reduced format high definition images. A narrow band encoded signal representative of digital television signals can thus be broadcast over an HD-MAC NB type channel.

Abstract: A movement estimation method and system are disclosed for high definition digital television frames. The movement is estimated for a current block Bc of the even fields T.sub.2k, 2r-1 of the uneven frames with which n movement vectors are associated, with the current block Bc of the even fields T.sub.2k, 2r of the even frames there is associated, by relative addressing, a movement vector with respect to s vectors of the preceding frame I.sub.2r-1 surrounding the frame B'c of the current block Bc. The s vectors are chosen by eliminating the vector redundancies among the n vectors. The invention is applicable to broadcasting and transmission of digital television signals by HD-MAC or HD-MAC NB narrow band channel.

Abstract: A method and installation are provided for broadcasting high definition television programs, particularly for broadcasting HD-MAC programs on a narrow channel, while reducing degradation of the picture when received by a first generation MAC receiver. The signal obtained by analysis of the source picture is subjected to spatio-temporal subsampling and to non-linear motion compensation filtering, leading to transmitting the points representative of the same source frame over at least two successive transmission frames (t1, t2) and transmitting, at the same time, assistance data defining a motion vector field. To improve the compatible frame delivered by a first generation receiver, the second analysis field corresponding to the same source frame is subjected to time attenuation in the direction of motion.

Abstract: For broadcasting an HDTV picture over a transmission channel having a frequency band narrower than that necessary for direct transmission of the HD TV picture, the HDTV source picture is sub-sampled at an analysis image frequency f.sub.o for distributing the spatial data of each HDTV image of the source picture over n successive frames, n being greater than 1. The resulting samples are subjected to temporal energy attenuating filtering in a frequency range around fO/n to obtain a modified signal, which is sent over the transmission channel. Upon reception, the modified signal is subjected to temporal filtering for enhancing energy in the frequency range before subjecting it to decoding for restoring the HDTV picture.

Abstract: The steam and thermal cracking of hydrocarbons is facilely carried out by in situ generating a stream of hot combustion gases including steam, advantageously in the configuration of a downstream axially extending, axially symmetrical helical flowstream, by combustion of steam-producing reactants in a combustion first reaction zone, and serially directly contacting and intimately admixing a liquid hydrocarbon feedstock with said gas of combustion in a downstream isodistribution, non-multi-tubular second reaction zone, advantageously first at a zone of reduced pressure thereof, the momentum of said gas of combustion at the point of direct contact being such as to provide all of the thermal and mechanical energy and heat transfer required to autogenously vaporize, entrain and effect cracking therein of said liquid hydrocarbon feedstock.

Abstract: Carbon dioxide is facilely converted into carbon monoxide and water, and advantageously into a syngas, by establishing a thermally homogeneous gaseous admixture including carbon dioxide and hydrogen having a temperature of at least 800.degree. C., within a period of time essentially insufficient for the production of carbon monoxide therefrom, and wherein said carbon dioxide is next autogenously reduced under reaction equilibrium conditions to carbon monoxide and water by reaction with hydrogen, with each molecule of carbon monoxide formed having, or essentially instantaneously being brought to, a temperature of at least 800.degree. C.

Abstract: A high temperature reactor includes a reaction chamber which is symmetrical about a longitudinal axis. Surrounding the reaction chamber are annular spaces to which a gaseous reactant is supplied. A plurality of conduits conduct the gaseous reactant from the annular spaces to the reaction chamber and introduces the gaseous reactant into the latter in the form of a helicoidal flow. A plurality of cooling conduits are disposed between the annular spaces and the reaction chamber for conducting a cooling medium. The cooling medium can also be conducted so as to cool a rear end of the reactor. The reactor can be used in combination with a contacting chamber to supply hot gases thereto.

Abstract: The clean combustion of a combustible material is facilely carried out by (i) in situ generating a dispersing first stream of hot combustion gases by establishing a first downstream axially extending, axially symmetrical helical flowstream of combustion-supporting gases in a first combustion reaction zone and by introduction and combustion of a combustible fluid feedstream therein, (ii) serially directly contacting and intimately admixing the material cleanly combustible hereby with said first stream of hot combustion gases at a zone of reduced pressure thereof defining the inlet end of a second combustion reaction zone and whereat and downstream thereof said first stream of hot combustion gases is also in the configuration of an axially symmetrical helical flowstream, (iii) the amounts of said combustion-supporting gases and said combustible fluid being such as to effect essentially instantaneous dispersion and entrainment of fine particles of said cleanly combustible material at and downstream of said point