Abstract: The present invention relates to a negative electrode material for a sodium ion battery, and to a method for producing it. The active material of the electrode material is composed of an oxide with a structure corresponding to the layered structure of the compound Na2Ti3O7, said oxide conforming to the formula NaxTi(IV),Ti(III)bMcO7 (A), in which x denotes the number of Na+ ions inserted between the layers, per Ti3O7 structural unit, with 0<x?5; Ti(IV) and Ti(III) represent titanium in the oxidation states IV and III, respectively; M represents one or more elements selected from 3d transition metals and 4d transition metals; the values of x, a, b and c are such that the compound is electronically neutral in view of the oxidation state of the element or elements represented by M; and the ratio (a+b)/c is greater than 0.5. The electrode material is obtained by electrochemical reduction of an oxide Nax?Ti(IV)a?McO7(B).

Abstract: The invention relates to the production of ovoproducts containing bioactive peptides from the egg white subjected to enzymatic treatment. Said peptides have an inhibiting activity of the angiotensin converting enzyme (ACE inhibiting activity) in vitro and/or anti-hypertensive activity in rats and/or antioxidant activity. Said ovoproducts, complete hydrolyzates, the fractions thereof with low molecular weight or their constituent peptides could be used as therapeutic substances with ACE inhibiting activity and/or anti-hypertensive activity and/or anti-oxidant activity, either as functional food products, food additives or ingredients or pharmaceutical products for the treatment and/or prevention of hypertension in all its forms in humans or animals and for the treatment and/or prevention of any disorder associated with hypertension in humans or animals.

Abstract: The present invention relates to a method of using an atomic force microscope comprising exciting natural lower and higher vibration modes of a microlever (M) placed on a sample, and analyzing the variation of one variable of a first output signal (Ai cos(?it??i)) representative of the response of M to the excitation of the lower mode, with respect to the variation of a parameter influenced by one variable of a second output signal (Aj cos(?jt??j)) representative of the response of M to the excitation of the higher mode, and/or analyzing the variation of one variable of a second output signal (Aj cos(?jt??j)) representative of the response of M to the excitation of the higher mode, with respect to the variation of a parameter influenced by one variable of a first output signal (Ai cos(?it??i)) representative of the response of M to the excitation of the lower mode.