Abstract: The present invention provides a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer, particularly a hole injecting layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Use of the aromatic amine derivative described above materialize an organic electroluminescence device which reduces an operating voltage and makes molecules less liable to be crystallized and which enhances a yield in producing the organic EL device and has a long lifetime.

Abstract: An aromatic carboxylic acid bicyclic sulfur compound of the formula (II): wherein X1 is a C1 to C4 alkyl, a halogen, a C1 to C4 haloalkyl, a C2 to C4 alkoxyalkyl, a C1 to C4 alkoxy or a C1 to C4 haloalkoxy; X2 is a hydrogen, a C1 to C4 alkyl or a C1 to C4 haloalkyl, or X2 forms a bond with X5; X3 is a hydrogen, a C1 to C4 alkyl or a C1 to C4 haloalkyl; X4 is a hydrogen, a halogen, a C1 to C4 alkyl, a C1 to C4 haloalkyl or a C1 to C4 alkoxy; X5 forms a bond with X2 or X5 forms a bond with X7; each of X6 and X8 is independently a hydrogen or a C1 to C4 alkyl or forms a bond with X5; p is 1; and n is 0, 1 or 2; or a salt thereof.

Abstract: The present invention relates to pyrazole derivatives of the formula (I), 1

Abstract: The present invention relates to pyrazole derivatives of the formula (I), 1

Abstract: The present invention relates to pyrazole derivatives of the formula (I), 1

Abstract: Disclosed is a monoclonal antibody which specifically reacts with active human ceruloplasmin as well as a method for diagnosing Wilson's disease using the same. The monoclonal antibody of the present invention specifically reacts with active human ceruloplasmin, it neutralizes the peroxidase activity of the active human ceruloplasmin upon binding thereto, and it does not specifically react with inactive human ceruloplasmin.

Abstract: A method of determining the number of bacteria in a sample which involves introducing a sample containing bacteria into a tubular filtering vessel holding therein a hydrophobic filter for bacterial detection, a coloring composition is disposed on the side of the filter where the sample is introduced into the vessel, and a support for the filter is disposed on the opposite side of the filter from the coloring composition. The bacteria is subjected to and the sample is filtered dyeing sample by suction from the support to collect the dyed bacteria on the filter and remove the excess of coloring matter. The number of the bacteria in the sample is determined from the degree of staining of the filter.

Abstract: A method for producing a human lymphocyte producing an antibody specific to a desired antigen, a method for producing a monoclonal antibody, as well as monoclonal antibodies produced by the method, are described. The present invention provides a method for producing a human lymphocyte producing an antibody comprising, in the order mentioned, the steps of: transplanting human lymphocytes into an immunodeficient animal so that the human lymphocytes take in the animal body; immunizing the animal with a desired antigen so as to generate human lymphocytes producing an antibody specific to the antigen; and recovering the human lymphocytes producing the antibody from the animal.

Abstract: A bicyclic sulfur compound of the following formula: ##STR1## wherein X.sup.1 is selected from the group consisting of C.sub.1 -C.sub.4 alkyl, halogen, C.sub.1 -C.sub.4 haloalkyl, C.sub.2 -C.sub.4 alkoxyalkyl, C.sub.1 -C.sub.4 alkoxy and C.sub.1 -C.sub.4 haloalkoxy; each of X.sup.2 and X.sup.3 is independently selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.4 haloalkyl; X.sup.4 is selected from the group consisting of hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl and C.sub.1 -C.sub.4 alkoxy; each of X.sup.5, X.sup.6, X.sup.7 and X.sup.8 is independently hydrogen or C.sub.1 -C.sub.4 alkyl; or X.sup.2 and X.sup.5 can combine to form an unsaturated double bond; or X.sup.5 and X.sup.7 can combine to form an unsaturated bond; p is an integer of 0 or 1; and n is an integer of 0, 1 or 2; or a salt thereof.

Abstract: A method for isolating a human lymphocyte producing an antibody specific to a desired antigen, a method for isolating a monoclonal antibody, as well as monoclonal antibodies produced by the method, are described. The present invention provides a method for isolating a human lymphocyte producing an antibody comprising, in the order mentioned, the steps of: transplanting human lymphocytes into an immunodeficient animal so that the human lymphocytes take in the animal body; immunizing the animal with a desired antigen so as to generate human lymphocytes producing an antibody specific to the antigen; recovering lymphocytes producing antibody by incubating with anti-mouse antibody; and separating human lymphocytes from mouse by centrifugation.

Abstract: A water repellent silica sol comprises colloidal silica particles of a size of 100 nm or less whose surfaces have been made water-repellent by an organic group-substituted silane. The water repellent silica sol is produced by a process which comprises reacting a silica colloid dispersed in a non-polar organic solvent with an organic group-substituted silane so that the surfaces of the colloidal silica particles are made water-repellent by the organic group-substituted silane. Alternatively, the water repellent silicate sol is prepared by a process which comprises adding a non-polar organic solvent, a cationic surface active agent and an organic group-substituted silane to a water-dispersed silica colloid, forming an emulsion therefrom, removing water from the emulsion by azeotropic dehydration and refluxing the emulsion under heating.

Abstract: A process for producing an organic electroluminescent device, comprising (a) preparing a laminated structure including at least a light-emitting layer formed of a luminescent organic solid which is disposed between mutually opposing positive and negative electrodes, the luminescent organic solid being implantable with electrons from the negative electrode and holes from the positive electrode when direct current is charged between the positive electrode and the negative electrode and thereby having an excited state therein to recombine the electrons and the holes injected into the luminescent organic solid for light emission, and (b) depositing a film of an electrically insulating polymer compound as a protection layer on an outer surface of the laminated structure, wherein the electrically insulating polymer is heated to a temperature of not more than 600.degree. C.

Abstract: Styrene homo-or-co- polymers, the stereoregularity of which is mainly syndiotactic are disclosed, having repeating unit or two or more different repeating units defined by a general formula (I): ##STR1## wherein each R may be the same or different. And a method of preparation of syndiotactic copolymers wherein there are two different repeating units represented by formula (I); wherein the polymerization is carried out with a catalyst comprising (a) a titanium compound and (b) a contact product of an organoaluminum compound and a condensing agent such as water.

Abstract: Disclosed is a monoclonal antibody which specifically reacts with active human ceruloplasmin as well as a method for diagnosing Wilson's disease using the same. The monoclonal antibody of the present invention specifically reacts with active human ceruloplasmin, it neutralizes the peroxidase activity of the active human ceruloplasmin upon binding thereto, and it does not specifically react with inactive human ceruloplasmin.

Abstract: A water-repellent emulsion composition containing, as essential components, colloidal silica particles which are surface-treated with a silylating agent; a nonpolar organic solvent; a cationic surfactant; one or both of a fluorine-containing surfactant and a silicone-containing surfactant; and water, and being excellent in dispersion stability, water repellency and barrier properties against water absorption.

Abstract: Disclosed is a novel organic electroluminescent device which can be used as a pixel for graphic display, a pixel for a television image display device or a surface light source, and this novel organic electroluminescent device overcomes the conventional problem of an organic electroluminescent device having a laminated structure in which at least a light-emitting layer formed of a luminescent organic solid is placed between two mutually opposing electrodes, i.e., a short life, by having a film of an electrically insulating polymer compound as a protection layer provided on the outer surface of the above laminated structure.

Abstract: An exhaust gas purification catalyst of high resistance which allows highly effective purification of nitric oxide into nontoxic gas, even for an exhaust gas containing oxygen at a high concentration. A carrier of the catalyst includes crystalline pentasil-type aluminosilicate and supports copper and phosphori, the amount of the phosphori being supported ranges from 0.01% to 6.0% by weight as a conversion to P.sub.2 O.sub.5, and ratio of the phosphorus to the copper, i.e., P/Cu (molar ratio) is in 0<(P/Cu).ltoreq.0.7. A method of reducing and eliminating a nitrogen oxide in an exhaust gas in the presence of a hydrocarbon having a ratio of an overall THC concentration/NO.sub.x concentration of 0.5-50 at a reaction temperature of 200.degree.-800.degree. C. in an oxidative atmosphere.

Abstract: An improved process for preparing carbonyl compounds by oxidizing olefins is disclosed. The process comprises oxidizing an olefin with oxygen or an oxygen containing gas in the presence of a palladium compound or metallic palladium, a polyoxoanion compound and an organic phosphorus compound in a solvent selected from oxygen-containing organic compounds, sulfur-containing organic compounds and nitrogen-containing organic compounds. In this process, precipitating of the palladium component is prevented and the high, reaction rate is well maintained through the prolonged reaction period and thus carbonyl compounds can be produced with high efficiency and productivity.

Abstract: A method for measuring the number of living microorganisms in a specimen which comprises entrapping the microorganisms on a hydrophobic filter after the dyeing thereof, or alternatively dyeing the microorganisms after entrapping them on the hydrophobic filter, removing excessive coloring matter by washing, and then determining the number of the microorganisms by the degree of coloration thereof. A kit for measuring the number of living microorganisms which comprises a hydrophobic filter, a syringe to which the filter is fittable, a coloring matter solution, a cleaning solution, and a color reference table. The present invention enables the rapid and convenient measurement of the number of living microorganisms in the specimen without use of special equipment. In accordance with the present invention, the measurement is usually completed within ten minutes.

Abstract: A process for production of styrene polymers of high syndiotactic configuration is disclosed, comprising polymerizing styrene or styrene derivatives by the use of a catalyst comprising: (A) a titanium compound, e.g., at least one compound selected from those represented by the formulae: TiR.sup.1.sub.a R.sup.2.sub.b R.sup.3.sub.c X.sup.1.sub.4 -(a+b+c) and TiR.sup.1.sub.d R.sup.2.sub.e X.sup.1.sub.3-(d+e) (all the symbols are as defined in the appended claims); and (B) a contact product of an organoaluminum compound and a condensation agent, e.g., a product resulting from modification of trimethylaluminum with water. Because of such high syndiotactic configuration, the styrene polymers are greater in thermal resistance and solvent resistance than conventional atactic polystyrene.