Abstract: Compositions of synthetic diamond particles and their synthesis by homogeneous nucleation of seed particles in the gas phase followed by growth of diamond or diamond-like carbon on these seeds is disclosed. These particles are characterized by their controlled size, shape, purity, surface characteristics, and their electrical properties and crystal structure.

Abstract: The invention relates to plant cells and dicotyledonous plants transformed with chimeric rat glutathione-S-transferase gene constructs. Transgenic tobacco plants and progeny expressed the chimeric gene constructs under the control of a plant promoter. The transgenic plants and progeny demonstrated resistance to a herbicide which is normally inhibitory to plants not expressing the chimeric construct.

Abstract: Hexachlorocyclotriphosphazene and poly(dichlorophosphazene) react with the sodium salt of ethyl p-hydroxybenzoate to give small molecule cyclic and high polymeric phosphazenes with aryloxy ester side groups; reaction of these compounds with potassium tert-butoxide brings about complete hydrolysis of the ester groups to yielding aqueous media-soluble, carboxylic acid bearing cyclic and high polymeric phosphazenes; the carboxylic acid bearing high polymer formed ionic cross-links when treated in aqueous media with salts of di- or trivalent cations yield hydrogels and membranes. The cross-linked gels were stable in neutral or strongly acidic aqueous media, but the cross-linking process was reversed in basic aqueous solutions of excess monovalent cations.

Abstract: A method for treating and preventing retinopathy and for treating and preventing other small vessel complications associated with diabetes which comprises administering a therapeutically effective amount of an antihistamine or a pharmaceutically acceptable derivative thereof to a mammal having retinopathy or other small vessel complications associated with diabetes.

Abstract: An apparatus and method of use thereof for performing autopsies is described. The invention is particularly useful as a protective device for the prevention of possible transmission of communicable diseases associated with autopsies and includes reusable and disposable components.

Abstract: This invention describes an acoustic transducer assembly wherein an extremely high figure of merit (d.sub.h g.sub.h) is obtained as a result of converting incoming acoustic axial stress into radial extensional stress thereby multiplying its effect. The piezoelectric active element is encased in a metal sandwich enclosing two semilunar air spaces which allow the device to withstand extremely high hydrostatic pressure yet still respond to low level sound waves when acting as a hydrophone. The mechanical prestress induced by the differential coefficients of expansion between the metal case and the piezoelectric ceramic element also serves to prevent depolarization aging.

Abstract: Disclosed is a disposable diaper which is comprised of a UV light permeable material which will effectively contain excretements and maximize the surface area exposed to the phototherapeutic light.

Abstract: A method of preparing a compound useful as a brightener in aqueous copper electroplating solutions comprising reacting a compound of the following formula: ##STR1## with a compound of the formula:HS--R.sub.2 --Z.sub.nwherein:R.sub.1 and R.sub.2 are each an alkylene containing from 2 to 8 carbon atoms, an arylene, an alkylarylene, an arylalkylene or a heterocyclic group containing at least one nitrogen atom in its ring structure:x, y and z each is a hydrogen or a water-solubilizing group; andn is an integer of from 1 to 4; with the proviso that:when R.sub.1 is a heterocyclic group, x, y and z are hydrogen and R.sub.2 is an alkylene containing from 2 to 8 carbon atoms, an arylene, an alkylarylene or an arylalkylene;when R.sub.2 is a heterocyclic group, x, y and z are hydrogen and R.sub.1 is an alkylene containing from 2 to 8 carbon atoms, an arylene, an alkylarylene or an arylalkylene;when x or y is a water-solubilizing group, R.sub.

Abstract: A method of preparing a compound useful as a brightener in aqueous copper electroplating solutions comprising reacting a compound of the following formula: ##STR1## with a compound of the formula:HS--R.sub.2 --Z.sub.nwherein:R.sub.1 and R.sub.2 each is an alkyl containing from 2 to 8 carbon atoms, an aryl, an alkylaryl, an arylalkyl or a heterocyclic group containing at least one nitrogen atom in its ring;X, Y and Z each is hydrogen or a water-solubilizing group; andn is an integer of from 1 to 4; provided that:when R.sub.1 is a heterocyclic group, X, Y and Z are hydrogen and R.sub.2 is an alkyl containing from 2 to 8 carbon atoms, an aryl, an alkylaryl or an arylalkyl;when R.sub.2 is a heterocyclic group, X, Y and Z are hydrogen and R.sub.1 is an alkyl containing from 2 to 8 carbon atoms, an aryl, an alkylaryl or an arylalkyl;when X or Y is a water-solubilizing group, R.sub.

Abstract: An oxidation resistant alloy comprising about 3 to 14 percent Cr by weight, about 3 to 50 percent by volume Si.sub.3 N.sub.4, and the balance selected from the group consisting of Fe, Ni, Co and alloys of these metals. Preferably, the Cr content is between 8 to 12 percent by weight, the Si.sub.3 N.sub.4 content is between about 3 to 22 percent by volume, and the alloy further includes between 1 to 2 percent Si by weight and between about 0.05 and 0.2 percent by weight of a reactive element.

Abstract: An adaptive digital electronic control system for an internal combustion engine wherein a given speed modifying parameter is perturbated about a given setting and the resulting effect on the engine's output shaft speed is computed for producing an electrical control signal for adjusting the setting in a way which tends to maximize the shaft output power. Described are arrangements whereby the electronic control system can be applied to a spark ignition system, the air/fuel control of a standard carburetor or the air/fuel control of a fuel injection system.