Abstract: Animals, including humans, are immunized by antigens, for example, the HA antigen of influenza, by first administering to a naive animal a normally strongly-immunogenic form of the antigen, for example, inactiviated or attenuated whole cell virus and subsequently administering a normally weakly-immunogenic isolated and purified viral antigen, to achieve an enhanced immune response to the purified viral antigen.

Abstract: This invention relates to a new electrochemiluminescent (ECL) label for oligonucleotides using phosphoramidite chemistry.

Abstract: A process for preparing polycyclic aromatic compounds by cross-coupling aromatic boron compounds with aromatic halogen compounds or perfluoroalkylsulfonates in the presence of metallic palladium as catalyst comprises adding to the reactiona) at least one water-soluble complexing ligand andb) sufficient water for the reaction mixture to form an aqueous phase.The reaction of the invention proceeds chemoselectively so that even electrophilic groups such as esters or nitriles do not have an adverse effect on the course of the reaction.The use according to the invention of a water-soluble complexing ligand in an aqueous phase enables polycyclic aromatic compounds to be prepared in very good yields and at the same time very high purity, in particular without contamination by the complexing ligands.

Abstract: The production of a bearing surface by coating a known bearing material directly on the surface of a gear bore. A process of coating bearing materials directly onto the surface of a gear and the product thereof. The surface is preferably the inner bore surface of a planet gear. The coating methods include sputtering and vapor deposition. The bearing material applied as a coating is preferably a copper-lead composition. The resultant gear having a bearing coating can be useful in any high density, high efficiency epicyclic gear train for aircraft, marine or land based power transmissions.

Abstract: A shaft extending in the skating directions is supported by stanchions depending from a boot plate. Spherical wheels formed by hemispherical segments are rotatably secured to the shaft in fixed axial position by a ring member having wing axles extending transversely the shaft axis, the ring member being rotatable about bearing members secured to the shaft. One Of the bearing members has a braking cam with a pair of oppositely positioned recesses which mate with a corresponding braking detent mechanism mounted in each wing axle. Each wheel segment is independently rotatably secured to a wing axle for rotation in the skating directions. The wing axles rotate with the wheels about the shaft in response to a stopping action transverse to the skating directions to provide a braking resistance in response to the detent mechanism riding against the cam surface. Different spring loads and springs are provided to allow for different skating stroke and stopping forces.

Abstract: A mirror tilt mechanism is provided for tilting a mirror assembly to a predetermined angle with respect to a vertical axis of the wall surface upon a relatively minor force being placed on the bottom portion of the mirror assembly. This mirror tilt mechanism includes a bracket member for mounting the mirror tilt mechanism to the wall surface and an arm member for engaging the mirror assembly to be tilted. This arm member is pivotally mounted to the bracket member such that the arm member is pivotally movable between a first position, wherein the mirror is supported in a generally vertical orientation with respect to the vertical axis of the wall surface, and a second position, wherein the mirror is supported at a predetermined angle with respect to the vertical angle of the wall surface such that the mirror is angled generally downwardly. In this manner, the mirror is "accessible" for use by handicapped individuals.

Abstract: Compounds of the formula I ##STR1## in which R is a C.sub.1 - to C.sub.22 -alkyl radical,A.sup.1 and A.sup.2 are hydrogen or methyl or,A.sup.1 is hydrogen and A.sup.2 is the nitro group, andB is the cyano group, the nitro group or an electron-attracting organic group having a double bond which is in conjugation with the thieno?3,2-b!thiophene ring system,have a high dipole moment and a high polarizability and are suitable for purposes of nonlinear optics. If R in the formula I is a C.sub.12 - to C.sub.22 -alkyl radical, monomolecular layers can be applied to a substrate by the Langmuir-Blodgett method. The resulting layer elements are suitable, inter alia, as waveguides.

Abstract: Animals, including humans, are immunized by antigens, for example, the HA antigen of influenza, by first administering to a naive animal a normally strongly-immunogenic form of the antigen, for example, inactivated or attenuated whole cell virus and subsequently administering a normally weakly-immunogenic isolated and purified viral antigen, to achieve an enhanced immune response to the purified viral antigen.

Abstract: An airline ticket printer includes a magnetic reading and writing station that has a read/write head for recording information on, or reproducing information from, a magnetic stripe carried on the ticket. The ticket is driven past the read/write head by a drive mechanism. The ticket printer also has a second reading/writing station in series with the first station along a ticket feed path, so that errors in reading or writing by the first station may be detected and/or corrected at the second station. Tickets are pre-staged from a ticket storage bin to a staging point to reduce print-cycle time. Ticket errors can be corrected and changes can be made by re-inserting the old ticket into the machine, reading the information that had been magnetically recorded on the old ticket and either printing a new ticket or over-printing the old ticket. If a new ticket is printed, the old ticket is deposited in a safe receptacle inside the machine.

Abstract: A process for the subcritical drying of a lyogel to give an aerogel comprises treating the lyogel with a heat transfer liquid which has a temperature above the boiling point of the pore liquid of the lyogel under the pressure of the system and subsequently separating the dried aerogel from the heat transfer liquid.

Abstract: Devices for the duplication of industrial magnetic tapes. More particularly it relates to an electronic device for the fast duplication of magnetic tapes. The device, through a microprocessor, activates selecting circuits to control static memory cards of a memory bank. The selecting circuit generates proceeding signals and selecting signals which single out memory cells of the memory bank for writing and reading. These selecting signals and proceeding signals cause a subdivision of the cards in the memory bank, allotting a part of the memory for reading and another part for writing. The selecting and the proceeding signals are carried out through digital signals. The final digital signals are subjected to a digital-to-analog conversion.

Abstract: This invention relates to a low-pressure chromatography column 1 having a diameter of more than 30 cm, and essentially consisting of a vertical cylinder 13 having a base plate 12, a lower sintered disk 3 arranged above the base plate 12, an upper sintered disk 16 fastened to the underside of a lid designed as a mobile plunger 4, and having at least three controllable elements 5 for raising or lowering the plunger 4, which are connected to the plunger 4, equipped with sensors 6 electrically connected to a control unit 10 for determining the vertical position and horizontal placement of the plunger 4. With the aid of an optical observation device (e.g., endoscope), the plunger/gel material can be adjusted exactly over the entire positioning range of the plunger. The advantages of the invention include simple and rapid production of the packing and purer products than could be obtained without such packing.

Abstract: The present invention relates to polymers with an extended system of conjugated double bonds constructed as homo and/or heterocyclic rings which are interlinked in pairs so that one ring is joined to the neighboring one at two adjacent atoms in the ring, in which one of these connections is made by a chemical bond to a ring atom of the neighboring ring and the other via a carbon, nitrogen, oxygen or sulphur atom to an atom of the neighboring ring adjacent said ring atom, their production and use in electrical, electronic and opto-electronic components.

Abstract: Aminomethanephosphonic acid and aminomethylphosphinic acids are interesting as biologically active compounds or as intermediates for the preparation of biologically active compounds. According to the invention, such compounds of the formula I ##STR1## in which R.sup.1 is OH, C.sub.1 -C.sub.4 -alkyl or phenyl, can be prepared in a technically simple manner by reacting compounds of the formula II ##STR2## in which R.sup.2 is H, C.sub.1 -C.sub.6 -alkyl, benzyl, phenyl, optionally substituted by C.sub.1 -C.sub.4 -alkyl, -alkoxy and/or halogen, and R.sup.1 is as defined above, with water, at 80.degree. to 300.degree. C.

Abstract: The invention relates to solid active substance formulations which contain wetting agents in combination with a surfactant (antifoam) from the group comprising perfluoroalkylphosphinic acid/perfluoroalkylphosphonic acids or their salts. The invention also relates to the use of these formulations, in particular in the preparation of spray slurries.

Abstract: A region of the PspA protein of the Rx1 strain of Streptococus pneumoniae has been identified as containing protection-eliciting epitopes which are cross-reactive with PspAs of other S.pneumoniae strains. The region comprises the 68-amino acid sequence extending from amino acid residues 192 to 260 of the Rx1 PspA strain.

Abstract: Compounds of formula I ##STR1## in which R.sup.1 and R.sup.2 are, for example, an alkyl chain,A is a mesogenic group, andM is a spacer group,are highly suitable as components of liquid-crystal mixtures.

Abstract: An adjustable spoon or scoop with a measuring container on each end. The spoon has a sliding cover with dams for adjusting the volumes in the measurement containers at both ends. The cover can be easily snapped off of the spoon body to separate the parts for easy washing. The dimensions of the containers at opposite ends of the spoon are set to cover different volume ranges; for example, 1/8 teaspoon to 1 teaspoon at one end, and 1 teaspoon to 1 tablespoon at the other end. Coordinated indicia are provided to indicate the measurements corresponding to each position of the slider. The dimensions of the measurement containers are determined so that a standard fractional measurement will be provided at both ends of the spoon by each of a plurality of sequential slider locations. The body has a slender central portion extending between the measurement containers.

Abstract: Fiber-optic cable is wound on a cylindrical bobbin without adhesive and is situated in the vehicle so that the cable, attached to a relatively stationary control computer station, is pulled freely off of the bobbin as the vehicle, such as a missile or torpedo, travels rapidly away from the station. In one embodiment, a propulsion engine is located within the hollow interior of the bobbin and the cable flows outwardly in a helix around the plume of the engine.