Abstract: A flotation process for recovering feldspar from a feldspar containing feed material, comprising the following steps: (1) forming an aqueous suspension of a feldspar containing feed material, in the absence of hydrofluoric acid, wherein the suspension comprises from 0.004 to 0.3% wt. of a flotation reagent comprising: (a) one or more amines, containing at least one aliphatic hydrocarbon chain, linear or branched, saturated or unsaturated, comprising 8 to 50 carbon atoms, or a salt thereof; and (b) one or more primary, secondary or tertiary alcohols, containing at least one aliphatic hydrocarbon chain, linear or branched, saturated or unsaturated, comprising 8 to 50 carbon atoms; the ratio of (a) to (b) ranging from 500:1 to 1:40 by weight; (2) agitating the obtained suspension to produce a feldspar containing fraction, and (3) separating the feldspar containing fraction.

Abstract: The present invention relates to the use of beta-naphthoquinone derivatives, and salts thereof, for the prevention and/or the treatment of glutamate cytotoxicity. It further relates to the use of beta-naphthoquinone derivatives, and salts thereof, for preventing and/or treating glutamate induced neurological disorders. Additionally, it concerns the use of beta-naphthoquinone derivatives, and salts thereof, for making drugs exerting an inhibitory effect on the release of glutamate.

Abstract: The present invention relates to the use of beta-naphthoquinone derivatives, and salts thereof, for the prevention and/or the treatment of glutamate cytotoxicity. It further relates to the use of beta-naphthoquinone derivatives, and salts thereof, for preventing and/or treating glutamate induced neurological disorders. Additionally, it concerns the use of beta-naphthoquinone derivatives, and salts thereof, for making drugs exerting an inhibitory effect on the release of glutamate.

Abstract: The present invention relates to the use of beta-naphthoquinone derivatives, and salts thereof, for the prevention and/or the treatment of glutamate cytotoxicity. It further relates to the use of beta-naphthoquinone derivatives, and salts thereof, for preventing and/or treating glutamate induced neurological disorders. Additionally, it concerns the use of beta-naphthoquinone derivatives, and salts thereof, for making drugs exerting an inhibitory effect on the release of glutamate.

Abstract: The present invention relates to the use of beta-naphthoquinone derivatives, and salts thereof, for the prevention and /or the treatment of glutamate cytotoxicity. It further relates to the use of beta-naphthoquinone derivatives, and salts thereof, for preventing and/or treating glutamate induced neurological disorders. Additionally, it concerns the use of beta-naphthoquinone derivatives, and salts thereof, for making drugs exerting an inhibitory effect on the release of glutamate.

Abstract: A method and a device for interferential microscopic imaging of an object which comprises sending a light beam in each of the arms of a two-wave interferometer, one of the arms comprising the object to be analyzed. The phase is subjected to a sinusoidal modulation to a frequency f. The signal modulation results from mechanical oscillation of an assembly of elements of the interferometer. The interference signal (S) is integrated during the phase variation via a multichannel sensor. A computer enables to record the integrated interference signal obtained during each period fraction 1/n and to calculate, subsequently, the image of the object. The invention is potentially useful for characterizing thin layers, for controlling components in microelectronics, for reading data stored in volume (3D) and objects unstable in time; in biology and in vivo studies.