Abstract: The present invention relates to a method of forming a dye image which involves processing a light-sensitive silver halide photographic image, after its imagewise exposure, in the presence of a novel yellow coupler as depicted in the formula below and an aromatic primary amine color developing agent ##STR1## wherein R.sub.1 represents cyano, alkyl carbonyl, phenylalkyl carbonyl, phenoxy alkyl carbonyl, phenylthio alkyl carbonyl, arylcarbonyl, alkyl phenyl carbonyl, alkoxy phenyl carbonyl, R.sub.2, R.sub.3, R.sub.4, R.sub.5 independently are hydrogen, halogen, alkyl, alkoxy, aryloxy, alkylacyloxy, arylacyloxy, acylamino, N-alkyl carbamoyl, N-phenylcarbamoyl, alkylsulfonamido, arylsulfonamido, N-alkyl sulfamoyl, N-phenylsulfamoyl, or imido, R.sub.6 represents cycloalkyl, alkenyl, naphthyl, thienyl, benzothienyl, furyl, or pyranyl, or a group of the formula (II): ##STR2## wherein R.sub.7, R.sub.9 and R.sub.11 are each hydrogen or alkyl, the sum of the carbon atoms in R.sub.7, R.sub.9 and R.sub.

Abstract: A process for the preparation of 2,3-dimethylbutene-2 is disclosed, which comprises the steps of converting isovaleraldehyde to isopropylacrolein, hydrogenating .alpha.-isopropylacrolein to form 2,3-dimethylbutanol, dehydrating 2,3-dimethylbutanol to form an olefin mixture comprising 2,3-dimethylbutene-1 and 2,3-dimethylbutene-2, and isomerizing the 2,3-dimethylbutene-1 contained in the mixture into 2,3-dimethylbutene-2. The present process is technically simple and inexpensive to utilize, and results in high yields of the desired product.

Abstract: A process for preparing silver halide emulsions having high sensitivity and contrast by adding water-soluble iridium compounds during precipitation or physical ripening and adding water-soluble iodide compounds and sulfer sensitizers during chemical ripening.

Abstract: A document feeding belt for the use of an automatic document feeding apparatus in that at least two layers one of which is an internal layer composed of flexible material and the other is an external layer composed of flexible material that is hard to be stained, are used.

Abstract: A method for forming an electrostatic latent image on an image recording medium includes forming a primary electrostatic latent image on a screen-type photosensitive plate, forming a secondary electrostatic latent image on the image recording material by irradiating the same with a charged particle current passed through the screen-type plate carrying the primary latent image, and correcting the secondary latent image on the recording material by irradiating the same with a charged particle current passed through the screen-type plate carrying the primary latent image.

Abstract: This invention relates to a light-sensitive color photographic material and more particularly to a diffusion transfer color photographic film unit, the processing composition of which contains a specific saturated aliphatic or saturated alicyclic alcohol.

Abstract: Process for forming yellow dye images in silver halide photographic material using 2-equivalent .alpha.-pivaloyl acetanilide couplers having at the 5-position a ballasting sulfonyl amido group.

Abstract: A process for preparing carboxylic acids by the oxidative conversion of the corresponding aldehydes comprises oxidizing the aldehydes in the presence of a catalyst comprising the anion [Fe(CN).sub.5 H.sub.2 O].sup.-3. The catalyst may be selected from [Fe(CN).sub.5 H.sub.2 O].sup.-3, compounds that form [Fe(CN).sub.5 H.sub.2 O].sup.-3 under the reaction conditions, and their salts. The catalyst is useful for the oxidation of aldehydes with oxygen or oxygen-containing gases. The present process permits the use of lower reaction times and temperatures, and reduces the formation of undesirable reaction by-products.

Abstract: An ink composition for ink jet recording is disclosed which contains a water soluble dye, polyhydric alcohol, and potassium carbonate in an aqueous medium.

Abstract: An electrophotographic element having a conductive support upon which a coating of oleophilic resin-encapsulated zinc oxide particles, and a sensitizer dispersed in a binder containing vinyl chloride and vinyl acetate polymers is disclosed. Capsule wall can be 5A to 1.mu. thick. The oleophilic resin can be silicone, urethane, epoxy.

Abstract: A photographic material comprising a support and at least one silver halide emulsion layer coated thereon, which material comprises a compound represented by the following general formula [I]: ##STR1## wherein R.sup.1 represents a hydrogen atom or a substituted or unsubstituted aryl group, R.sup.2 and R.sup.3 individually represents a hydrogen atom, an alkyl group, alkenyl group, a substituted or unsubstituted aryl group, or R.sup.2 and R.sup.3 represent nonmetal atoms necessary for forming by their mutual linkage a 5- or 6-membered ring, and R.sup.4 represents a hydrogen atom, an alkyl group, alkenyl group, a substituted or unsubstituted aryl group or a group of the general formula ##STR2## wherein X represents the group --(CH.sub.2).sub.n -- wherein n is an integer from 0 to 4, or an allylene group.

Abstract: A sternum closure device is provided by a series of upper and lower clamping devices which are held by a series of threaded rod from a support. The device is used for holding together the halves of a split sternum which has previously been cut to expose the chest cavity as required for example in heart operations. The lower clamping device is positioned beneath the sternum which is then pulled together in a known manner. The upper clamping device or clamps are then pushed down on a threaded rod to cooperate with the lower clamping device with the two clamping members forced toward one another into the sternum halves by nuts on the threaded rods. The unused portion of the rods and the support are then discarded. Different forms of under-clamps are described. A sternum closure procedure utilizing the sternum closure device is also disclosed.

Abstract: A photosensitive element for electrophotography which comprises a conductive support, a charge generating layer containing a charge generating substance, and a charge transporting layer. The element comprises a polymeric binder containing a charge transporting substance represented by the formula (I). ##STR1## wherein n represents 0 or 1, R.sub.1, R.sub.2 and R.sub.3 each represent an aryl group, and R.sub.4 and R.sub.5 each represent a hydrogen, an alkyl group having 1-4 carbon atoms, an aryl group or an aralkyl group, provided that R.sub.4 and R.sub.5 are not simultaneously a hydrogen, and when n is 0, R.sub.4 is not hydrogen.

Abstract: This combined ski boot and safety binding comprising a recessed boot receiving a binding case is adapted releasably to cooperate with a complementary member fastened to the ski, the case comprising pistons responsive to resilient return springs, the pistons being provided with transverse rods engaging cam contours formed on upstanding lateral lugs rigid with the complementary member; the boot is provided with a pivot member formed with opposite flat faces adapted to actuate the pistons when the boot is lifted and/or rotated as a consequence of a forward or backward fall, or in case of abnormal torsion stress, so as to release the boot and the case from the complementary member.

Abstract: An apparatus for detecting the density (concentration) of toner in a developer for an electrostatic recording apparatus includes an operatively moveable surface for carrying developer onto an electrostatic latent image bearing member during image development, a scraper element having at least a flat surface for scraping developer from the movable surface in a substantially steady and uniform stream along the flat face, and a substantially flat detection coil assembly having oppositely-directed faces. The coil assembly is mounted on, spaced apart from, and substantially parallel to the flat face of the scraper so that the stream of developer passes along both coil assembly faces directly after being scraped from the moveable surface, thereby enhancing the toner density detection sensitivity of the coil assembly.

Abstract: Silver halide photographic material containing hydroquinones and benzoquinones as anti-stain agents.

Abstract: Filaments of a copolyamide which is derived from at least three polyamide-forming, unbranched, saturated, randomly distributed monomer components, having an average amide group frequency of one --CONH-- to 6.4 to 7.4 --CH.sub.2 -- and in which each of said monomer components is present in an amount of 10 to 60 mol %, based on the number of moles of all said components, and the sum of the mole % amounts of all monomer components is 100, said copolyamide having a melting point of less than 155.degree. C. A method of making such filaments is also disclosed.

Abstract: A silver halide emulsion containing an image dye-forming substance and a hydroquinone compound containing at least one electron attracting group as a color fog inhibiting agent.

Abstract: A prosthetic heart valve consists of a tubular membrane having a flexible generally circular inlet end adapted to be attached to the annulus of a heart with one side of the tube held to the heart cavity as by attachment to the papillary muscle while the other side of the tube is formed as an extended single flap adapted to move toward and away from the membrane on the attached side to provide a closed or open valve at the outlet end.

Abstract: A benzylalcohol derivative of the formula: ##STR1## wherein R is hydroxy, benzyloxy, alkoxy of one to 4 carbon atoms or halogen, and Ring A is monomethoxyphenyl, dimethoxyphenyl, trimethoxyphenyl or 3,4-methylenedioxyphenyl is prepared by reducing a compound of the formula: ##STR2## wherein R' is benzyloxy, alkoxy of one to 4 carbon atoms or halogen, and Ring A is the same as defined above, and when R' is benzyloxy, if required, further subjecting the product to catalytic hydrogenation.The compounds (I) and pharmaceutically acceptable acid addition salts thereof are used as anti-diabetic agents.