Abstract: A subject of the invention is the compounds of formula (I): ##STR1## in which OR.sub.1, OR.sub.2 and OR.sub.3 represent hydroxyl radicals blocked in the form of easily cleavable radicals.The compounds of formula (I) can be used to prepare antibiotic products.

Abstract: An applicator device for a flat element (1) for sampling of microorganisms has a flat recess (3) for containing and retaining a culture medium (4), and with at least one border (5) arranged to the outside of the recess, wherein the applicator device has a plate (6), a base (7) for holding the plate at a distance from the surface (2) from which the sample is to be taken, defining a support surface (9), and forming an opening (7a) for engaging the sampling element (1) parallel with respect to the support surface (9), and with the free surface (4a) of the culture medium directed downwards, a pusher (10) mounted so as to be free in terms of translation on the plate (6) perpendicular to the support surface (9), with a bearing head (11) which protrudes from the inside of the base (7), a device (12) for returning the pusher towards the support surface (9) and at least one shoulder (13) defining a bearing surface (14) for retaining the border (5) of the sampling element (1).

Abstract: A compound selected from the group consisting of a compound of the formula ##STR1## wherein R is selected from the group consisting of ##STR2## and R.sub.b --NH--, Ra is an organic radical, Ri and Rj are individually selected from the group consisting of hydrogen, aliphatic hydrocarbon, aromatic hydrocarbon and heterocycle or taken together with the nitrogen atom to which they are attached form an optionally substituted ring, Rb is selected from the group consisting of carbocyclic aryl and heterocyclic aryl, both optionally substituted, R.sub.1A is selected from the group consisting of ##STR3## and ##STR4## are individually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, Z.sub.A is selected from the group consisting of a simple bond, --O-- and optionally oxidized sulfur, R.sub.

Abstract: Novel 1-dethia-2-thia-cephalosporanic acid derivatives of the formula ##STR1## wherein R is selected from the group consisting of ##STR2## Ra is an organic radical, R.sub.i and R.sub.j are individually selected from the group consisting of hydrogen, aliphatic, aromatic and heterocycle or taken together with the nitrogen atom to which they are attached form an optionally substituted cycle or R.sub.b NH--, R.sub.b is optionally substituted carbocyclic or heterocyclic aryl, R.sub.1 and --COM are as defined in the specification, R.sub.4 is hydrogen or methoxy, n.sub.2 is 0, 1 or 2 and their non-toxic, pharmaceutically acceptable acid addition salts in racemic or optically active form having antibiotic activity and their preparation and novel intermediates.

Abstract: An initiation device includes a primer-container system placed inside a casing box able to move from a safety position to an armed position through the action of a motor. The system is immobilized in its security position by at least one lock that is released by a shape memory actuator when the surrounding temperature rises above a given value.

Abstract: A compound selected from the group consisting of a compound of the formula ##STR1## wherein R is selected from the group consisting of ##STR2## and R.sub.b --NH--, Ra is an organic radical, Ri and Rj are individually selected from the group consisting of hydrogen, aliphatic hydrocarbon, aromatic hydrocarbon and heterocycle or taken together with the nitrogen atom to which they are attached form an optionally substituted ring, Rb is selected from the group consisting of carbocyclic aryl and heterocyclic aryl, both optionally substituted, R.sub.1A is selected from the group consisting of ##STR3## R.sub.A ' and R.sub.B ' are individually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, Z.sub.A is selected from the group consisting of a simple bond, --O-- and optionally oxidize sulfur, R.sub.

Abstract: Triggering a pyrotechnic charge. The contactor comprises:a supporting base (6), made of insulating material, having at least two conducting terminals (7 and 8),a contact sleeve (13) centered coaxially on the base, in contact with one of the terminals and having fingers urged centrifugally by elastic elements (22),a deformable conducting case (24) in contact with the second terminal,and a conducting slide (28) movable by inertia on the axis of symmetry against the action of a retaining spring (31).Application as an impact contactor for projectiles.

Abstract: A mechanism is described for attaching a fin to a projectile and for deploying the fin from a stowed position to a deployed position. In the stowed position the fin is parallel to a centrally located axis which extends from the front portion to the rear portion of the projectile. A mounting which is disposed in a bearing and to which the fin is attached permits pivoting of the fin and deployment of the fin in two phases. During the first phase the fin moves from the stowed position to a semideployed positions by rotation in the bearing about an axis normal to the projectile's centrally located axis. During the second phase the fin moves from the semideployed position to the deployed position by pivoting relative to the mounting.

Abstract: A compound selected from the group consisting of a syn isomer of a compound of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 6 carbon atoms, alkenyl and alkynyl of 2 to 6 carbon atoms and cycloalkyl of 3 to 6 carbon atoms, all optionally substituted with at least one member of the group consisting of optionally esterified or salified carboxy, alkoxy carbonyl, carbamoyl, dimethylcarbamoyl, amino, alkylamino, dialkylamino, halogen, alkoxy and alkylthio of 1 to 4 carbon atoms, aryl, heterocyclic aryl, arylthio and heterocyclic arylthio optionally substituted by alkyl of 1 to 4 carbon atoms, R.sub.1 is selected from the group consisting of ##STR2## and A is selected from the group consisting of hydrogen, alkali metal, alkaline earth metal, magnesium, --NH.sub.4 and an organic amine or A is selected from the group consisting of the residue of an easily cleavable ester group or --COOA is --COO-- and the wavy line indicates --CH.sub.2 --R.sub.

Abstract: Novel syn isomers of reacemates and optical isomers of 3-amino-2-oxo-azetidine-1-sulfonic acids of the formula ##STR1## wherein R is difluoromethyl, R.sub.1 is --(CH.sub.2).sub.n --X, n is an integer from 1 to 4, X is selected from the group consisting of halogen, --CN, --OR.sub.1 ', --SR.sub.1 ", azido, thiocyanate, isothiocyanate, and ##STR2## R.sub.1 ' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R.sub.1 " is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and a heterocycle and R' and R" are individually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and taken together with the nitrogen to which they are attached form a heterocycle and A.sup.1 is selected from the group consisting of hydrogen, and metal cations and their nontoxic, pharmaceutically acceptable acid addition salts, the wavy line indicating the cis form, trans form or cis trans forms having antibiotic properties.

Abstract: Novel syn isomers of racemates and optical isomers of 3-amino-2-oxo-azetidine-1-sulfonic acids of the formula ##STR1## wherein R is selected from the group consisting of hydrogen linear or branched optionally substituted alkyl of 1 to 12 carbon atoms and optionally substituted alkenyl and alkynyl of 2 to 12 carbon atoms, R.sub.1 is --(CH.sub.2).sub.n --X, n is an integer from 1 to 4, X is selected from the group consisting of halogen, --CN, --OR', --SR.sub.1 ", azido, thiocyanate, isothiocyanate, and ##STR2## is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R" is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and a heterocycle and R' and R" are individiually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and taken together with the nitrogen to which they are attached form a heterocycle and A.sup.

Abstract: Novel syn isomers of optically active isomers and racemates of 7-[2-(2-amino-4-thiazolyl)-2-oxyimino-acetamido]-bicyclooctene-carboxylic acid derivatives of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, optionally substituted alkyl of 1 to 6 carbon atoms and optionally substituted alkenyl and alkynyl of 2 to 6 carbon atoms, R.sub.1 is selected from the group consisting of hydrogen, methyl, halomethyl, hydroxymethyl and acyloxymethyl, X is selected from the group consisting of oxygen and optionally oxidized sulfur, A is selected from the group consisting of hydrogen, an alkali metal, --NH.sub.4, alkaline earth metal equivalent, a non-toxic, pharmaceutically acceptable organic amine and an easily cleavable ester group and their non-toxic, pharmaceutically acceptable acid addition salts having antibiotic activity and their preparation.

Abstract: Apparatus for forming, in two steps, panel, or shaped article, by first providing a bath of fluent cementitious material under a core of cellular, preexpanded and cohered polystyrene cells or pearls, having a density less than that of the cementitious material, allowing the core partially immersed to rise in a controlled way over the cementitious material, maintaining the core under pressure until the bath has partially set to prevent further rise of the core, pouring onto the core and partially set bath, a second quantity of fluent cementitious material to completely enrobe the core and form thereover a top revetment, smoothing the surface of the second quantity of cementitious material and letting it set to complete the panel.

Abstract: A method of forming, in two steps, panel, or shaped article, by first providing a bath of fluent cementitious material under a core of cellular, preexpanded and cohered polystyrene cells or pearls, having a density less than that of the cementitious material, allowing the core partially immersed to rise in a controlled way over the cementitious material, maintaining the core under pressure until the bath has partially set to prevent further rise of the core, pouring onto the core and partially set bath, a second quantity of fluent cementitious material to completely enrobe the core and form thereover a top revetment, smoothing the surface of the second quantity of cementitious material and letting it set to complete the panel.