Abstract: A valve operating apparatus for an engine is disclosed. The apparatus includes a rocker arm operated by a first cam and a free cam follower operated by a second cam. The rocker arm has an integral barrel having a lost motion mechanism. A prop is slidably received by the free cam follower for movement between a first position in which the prop supports the free cam follower on the lost motion mechanism and a second position in which the prop supports the free cam follower on the barrel. A hydraulically operated piston moves the prop.

Abstract: An oil passage structure for a rocker-arm shaft for an internal combustion engine, comprises an outer cylindrical member for rotatably supporting rocker arms and an inner cylindrical member press-fitted into the outer cylindrical member. The inner cylindrical member employs at least one concavity having a given axial length for defining at least two axial oil passages.

Abstract: Peptides with laminin activity are provided as follows:tyrosine-isoleucine-glycine-serine-arginine;proline-aspartine-serine-glycine-arginine; andcysteine -aspartate-proline-glycine-tyrosine-isoleucine-glycine-serine-arginine.These peptides block angiogenesis, alter the formation of capillary structures by endothelial cells, prevent the formation of excess blood vessels in tissues, and inhibit in vivo tumor cell colonization of tissues.

Abstract: A reinforced therapeutic tube which is excellent in kink resistance, pressure resistance and flexibility. The tube is made of an elastomeric material with a reinforcing material spirally embedded into the tube wall, and at least one of the tubular parts where no spiral reinforcing material exists. The tip end of the reinforcing material which is wound in spiral shape is bent parallel to the inside surface of the tube and inward of the tube for at least one or more pitches of the spiral, and at least the tip of the reinforcing material bent is buried into the inside wall of the tube.

Abstract: Developer mixtures comprising finely-divided toner particles electrostatically clinging to the surface of carrier particles. The toner particles comprise a colorant and at least about 60 percent by weight, based on the weight of the toner particles, of a resin mixture comprising between about 40 and about 90 parts by weight of a styrene resin and from about 10 to about 60 parts by weight of an epoxy resin. Electrostatographic imaging processes employing said developer mixtures are also disclosed.

Abstract: A high contrast, high density color image is formed on a silver halide photosensitive monochromatic, e.g., irradiated by X-rays, by subjecting the photosensitive material to coupling or color development with a developer solution containing a p-phenylene diamine developing agent and 1-phenyl-3-pyrazolidone and then, without desilverization, to fixing. The coupler may be contained in the silver halide photo-emulsion or in a developing solution.