Abstract: Apparatus and methods for modulating light involving the formation of bubbles in a normally opaque dye solution contained within a cell. The bubbles are created in the dye solution by focusing a beam from a laser in regions of the dye solution thereby vaporizing a solvent in the solution. When the bubble is formed, the modulator becomes substantially transparent in the region of the bubble. If the focused laser beam is turned off, the bubble condenses and the modulator again becomes opaque in the region of the condensed bubble.

Abstract: A process for preparing chemically stable compositions of tetra(hydrocarbyl)metallic compounds in solution, and an improved process for the preparation of active 1-olefin polymerization catalysts.

Abstract: A process is disclosed wherein a plurality of layers of yarns are laid down in a diamond shaped pattern on a rotating cylindrical mandrel wherein the yarn walls forming the diamond shaped pattern cover the openings of each adjacent layer. The yarns are formed of refractory oxide filaments which are coated with a refractory ceramic to form a filter or trap for removing particulates from combustion exhausts.

Abstract: A scanning optical microscope or mapping system for spectrally-resolved measurement of light reflected, emitted or scatttered from a specimen is disclosed, in which the spectrally-resolving element is integrated into the detection arm of the microscope or mapping system to result in good photon collection efficiency as well as good spectral and spatial resolution. A confocal version of the microscope is disclosed which will be of particular interest in fluorescence microscopy, and the non-confocal mapping system will be of particular interest in photoluminescence mapping of semiconductor wafers.

Abstract: A fluorescent lantern is disclosed which incorporates a radio receiver in its base member. A separate remote control transmitter has a command switch and, in a response to input therefrom, radiates a radio frequency command signal to the receiver. In response to the command signal from the transmitter, the receiver feeds a control signal to a control unit in the base member which operates the fluorescent light tubes, as directed by the command input. The fluorescent lantern, remote control transmitter and receiver are battery powered. The lantern has a pair of reflectors mounted on a lower surface of the base and a lower surface of a top member. The reflectors have convex reflective surfaces to generally reflect light from the fluorescent tubes outwardly from the lantern. A central support rod and fastener secure the lantern base, top member and globe together while allowing manual detachment of the top member to allow access to the fluorescent tubes for removal and installation thereof.

Abstract: A vascular prosthesis is made by wetting a porous polyester fiber tubing with water until it gains close to maximum amount of weight, removing excess liquid from inside the tubing, repeatedly contacting the inside surface of the tubing with a solution of a biocompatible polymer in a water-immiscible solvent to adsorb some solution on the inside surface of the tubing, and removing excess solution, then removing solvent from the adsorbed solution to form a nonporous elastomer coating of the desired thickness on the inside surface of the tubing.

Abstract: Separation of an aliphatic aminonitrile or an aliphatic diamine from a mixture containing the corresponding cyclic, aliphatic, mono-unsaturated amine by adding caustic compound to the mixture and then distilling the aminonitrile or the diamine at a temperature less than 170.degree. C. and at a pressure of less than 1 atmosphere.

Abstract: An apparatus for supporting a wind-up lay-on roll and, in particular, where the apparatus enables the wind-up lay-on roll to apply a substantially uniform force across a width of web material being wound into a roll on a turret assembly.

Abstract: A method for determining and, when appropriate, compensating for the linear (heat) expansion of elongated bodies (1), such as physical length scales (1) or of elongated bodies which are intended to support physical length scales on, e.g., instruments or measuring machines equipped with physical length scales, in which measurement errors occur because of length deviations of the scale (1) as a result of deviations from a reference temperature at which the scale was calibrated.The method is mainly characterized by measuring the linear expansion of the body (1) in relation to at least one reference (6) made of a material whose coefficient of linear (heat) expansion (.alpha.) deviates from the coefficient of linear (heat) expansion of the body material, and thereafter determining, when appropriate, a compensation factor for correcting the body length.The invention also relates to an arrangement for carrying out the method.

Abstract: By providing separate, easily mountable members which incorporate finger/thumb receiving and holding zones constructed for use and access by individuals with reduced or impaired manual dexterity, a control improving and enhancing system is achieved which is mountable directly to conventional implements, such as manicure implements. Preferably, each control improving and enhancing system is constructed for being quickly and easily securely mounted to existing implements and may be removable therefrom for use on other implements. In addition, each control improving and enhancing system is constructed with enlarged, specially constructed, readily accessible, easily employable finger/thumb receiving and supporting zones which are positioned to assure complete operational control of the implement, thereby enabling individuals with reduced or impaired manual dexterity, or with varying stages of joint diseases, such as arthritis, to naturally and confidently use the implements.

Abstract: Continuous synthetic filaments having a four sided cross-sectional contour and four substantially equispaced continuous voids are disclosed. The voids have a substantially round or nonround shape, and each void is substantially centered on a side of the filament's contour.

Abstract: A method is provided for preventing or reducing the risk of or treating Type II diabetes by administering a cholesterol lowering drug, such as pravastatin, alone or in combintion with an ACE inhibitor, such as captopril, zofenopril, ceranapril, fosinopril, enalapril or lisinopril.

Abstract: A rotor supports a plurality of marking devices in spaced relation around the arcuate surface of an object to be marked which is fixed relative to the rotor. The rotor is mounted for rotation about an axis which is coaxial with an axis of the object to be marked. The rotor is also linearly movable on the axis. Each marking device includes a single impact pin positioned to extend and retract relative to the object to impress an identification mark, such as a dot, on the arcuate surface of the object. The impact pins are remotely controlled by a computer to inscribe on the object an array of dots in parallel rows to form desired programmed characters on the object. The impact pins are moved in a raster pattern by rotational and linear movement of the rotor in a preselected direction relative to the object. The impact pins are actuated to impress dots on the surface of the object in a first arcuate row.

Abstract: Electrically insulative boots for substantially covering conductive connector housings and, in particular, conductive connector housings with a plug skirt and/or a receptacle skirt. The boots include a first electrically insulative shield connected to a second electrically insulative shield. The first shields include first and second plug flaps and/or first and second receptacle flaps. The flaps cover the plug skirt and/or a receptacle skirt when not connected to a mating connector assembly. The receptacle flaps are cammed away from the receptacle skirt by the plug flaps of a mating connector assembly allowing the plug skirt and receptacle skirt of mating connector assemblies to be adjacent to one another while the extractor of such mated connector assemblies remain electrically insulated.

Abstract: Novel compounds are disclosed having the formula ##STR1## wherein X, Y, R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are as defined herein. These compounds inhibit the action of angiotensin II and are useful, therefore, for example, as antihypertensive agents.

Abstract: The present invention is directed to a process of preparing isocyanate-substituted isophthaloyl chloride by heating a mixture of amino-substituted isophthalic acid, catalyst, phosgene and halogenated solvent under autogeneous pressure.

Abstract: A relative humidity or water activity sensor includes a body defining a cavity with at least one resonant humidity sensing element comprising a crystal plate coated in part with an adsorbent material and at least one resonant temperature sensing element disposed inside the cavity. A membrane suitable for passing water vapor acts as a barrier to liquids and is situated between the cavity and the medium whose relative humidity and/or water activity is to be measured. The value of the relative humidity or of the water activity of the medium, and the temperature are determined from the resonant frequencies of the sensing elements. The invention also provides an installation including a plurality of such sensors.

Abstract: Photographic silver halide materials containing aryl hydrazides as defined and novel aryl hydrazides with a cationic group in the acyl radical enables the preparation of photographic materials that can be developed rapidly to ultrahigh contrast at a relatively low pH value. The photographic materials are useful in reprography, particularly screening for halftone images.

Abstract: This invention includes substituted pyrroles, pyrazoles and triazoles, processes for their preparation, pharmaceutical compositions containing them, and their use as antihypertensive agents, and as a treatment for congestive heart failure in mammals. The heterocyclic compounds of the invention have the structural formula (I) ##STR1## or pharmaceutically suitable salts thereof.

Abstract: A stretchable stitchbonded fabric, suitable for forming into conformable apparel, fitted furniture covers or the like, is stitched with elastic yarns to form at least two longitudinal regions of differing stretchability, each region having minimum stretchability of 30% and one region being least 1.5 times as stretchable as the other region.