Abstract: The present invention provides a method for efficiently producing a cell aggregate containing pituitary hormone-producing cells from pluripotent stem cells.

Abstract: The present invention aims to provide a method for efficiently producing a cell population containing pituitary tissue from pluripotent stem cells. The method for producing a cell population containing pituitary tissue includes the following steps (1) and (2): (1) a first step of culturing the pluripotent stem cells in the presence of a c-jun N-terminal kinase (JNK) signal transduction pathway inhibiting substance and a Wnt signal transduction pathway inhibiting substance, (2) a second step of culturing the cell population obtained in the first step in the presence of a BMP signal transduction pathway activating substance and a Sonic hedgehog signal transduction pathway activating substance, thereby obtaining a cell population containing pituitary tissue.

Abstract: A conjugated diene copolymer has a covalent bond reversibly dissociated and added by heat, and has at least two peaks in each of curves of molecular weight distributions measured at 40° C. and 60° C. by gel permeation chromatography, wherein a change rate of the proportion of the area of the peak having the lowest molecular weight in measurement at 60° C. to the proportion of the area of the peak having the lowest molecular weight in measurement at 40° C.

Abstract: An object of the present invention is to provide a laminate which has a substrate, an intermediate layer, and a water-repellent layer laminated in this order, and has excellent abrasion resistance.

Abstract: A composition for use in fabricating opto-electrical devices comprising a solution processable triazine host material and a phosphorescent moiety.

Abstract: A white light emitting material comprising a polymer having an emitting polymer chain and at least one emitting end capping group.

Abstract: A composition for use in fabricating opto-electrical devices comprising a solution processable triazine host material and a phosphorescent moiety.

Abstract: A composition comprises a low molecular weight polyelectrolyte, a high molecular weight polymer, a light-emitting material and a salt. The viscosity average molecular weight of the high molecular weight polymer in at least one solvent is at least 5 times greater than the viscosity average molecular weight of the low molecular weight polyelectrolyte in the at least one solvent, and the high molecular weight polymer and the low molecular weight polymer are preferably different molecular weight polymers of the same polyelectrolyte material, such as polyethylene oxide. The composition is used to provide a light emitting layer (103) in a light-emitting electrochemical cell between an anode (101) for injecting positive charge carriers and a cathode (105) for injecting negative charge carriers.

Abstract: A composition for use in fabricating opto-electrical devices comprising a solution processable triazine host material and a phosphorescent moiety.

Abstract: A device comprising an electroluminescent copolymer comprising a light-emitting repeat unit in the polymer backbone and wherein the repeat unit is conjugatively separate from the polymer backbone.

Abstract: An organic light-emitting device comprising: an anode; a cathode; a light-emitting layer located between the anode and the cathode, said light-emitting layer containing a light-emitting metal complex comprising general formula 1: (1) where M represents Re(I), W(0), Ir(III), or Os(II); L1 represents a tridentate ligand; and L2, L3 and L4 represent ligands, characterised in that L1 comprises general formula 2:(2) where R1 represents a bridging group; and Ar1, Ar2 and Ar3 each independently represents a group comprising a heteroaryl ring and * indicates coordination to M.

Abstract: A weather strip comprises an extruded part and a molded part which is connected to the extruded part. The molded part is molded from a material containing a solid particle antifriction material and has 1 to 50 &mgr;m of ten points average surface roughness (Rz) on the surface of the molded part. The material is a thermoplastic elastomer or a soft resin.

Abstract: There are provided a process for producing an alkenyl-substituted aromatic hydrocarbon by alkenylation of an alkyl-substituted aromatic hydrocarbon having a hydrogen atom at the &agr;-position of a side chain thereof with a conjugated diene, using a catalyst obtained by the action of an alkali metal compound and an alkali metal or an alkali metal hydroxide on an metal oxide selected from alumina or hydrotalcite by heating in a specific temperature range; and a process for producing an alkenyl-substituted aromatic hydrocarbon, characterized in that the reaction is carried out in the presence of an alkylaminopyridine of formula (1): wherein R1 is hydrogen or C1-C6 lower alkyl, and R1 is C1-C6 lower alkyl, using as a catalyst, Na metal, K metal, or an alloy thereof, or a catalyst carrying any of them on an inorganic compound support, or a catalyst obtained by the action of an alkali metal compound and alkali metal or an alkali metal hydride on a metal oxide selected from alumina, alkaline earth

Abstract: The present invention provides for herbicidal composition comprising (i) ethyl O-[5-(2-chloro-.alpha., .alpha., .alpha.-trifluoro-p-tolyloxy)-2-nitrobenzoyl]-DL-lactate, and (ii) ethyl 2-chloro-3-[2-chloro-5-(1,3-dioxo-4,5,6,7-tetrahydroisoindolin-2-yl)phenyl ]acrylate as active ingredients. The present inventive composition can control a wide variety of weeds in corn fields, soybean fields, wheat fields, barley fields, oats fields, rye fields, rice fields, paddy fields or the like, with selectivity to crops. Methods for controlling weeds are also provided.

Abstract: A process for producing .alpha.-alumina powder comprising .alpha.-alumina single crystal particles, the process comprising the step of calcining at least one of transition alumina and a transition alumina precursor capable of becoming transition alumina on heating, in a gas atmosphere containing (1) at least about 5% by volume, based on the total gas atmosphere, of a halogen selected from fluorine, chlorine, bromine, and iodine, (2) at least about 1% by volume, based on the total gas atmosphere, of a hydrogen halide selected from hydrogen fluoride, hydrogen bromide, and hydrogen iodide, or (3) a component prepared from at least about 1% by volume, based on the total gas atmosphere, of a halogen gas selected from fluorine gas, bromine gas, and iodine gas, and at least about 0.1% by volume, based on the total gas atmosphere, of steam.

Abstract: A method of manufacturing a laminated body consisting of a synthetic resin member provided with a layer member thereon, in which the member is bent to cover the edges of the resin member. The method includes the compression, resulting from a male mold and a female mold approaching each other, of the layer member and molten resin. The female mold has flanges mounted on its edges to permit the layer member to cover the edges of the resin during compression. Molten resin materials are supplied between the male and female molds prior to subsequent to the compression.

Abstract: A gene coding for Protein H, which is capable of binding specifically to human IgG of all subclasses, was isolated from Streptococcus sp. APl and expressed in host cells, E. coli to produce the Protein H.

Abstract: An aluminum nitride powder obtained by firing and reacting a mixture of alumina and carbon in a nitrogen-containing atmosphere is disclosed, the aluminum nitride powder having an oxygen content of not more than 2.0% by weight, an iron content of not more than 20 ppm, a silicon content of not more than 100 ppm, and a titanium content of not more than 20 ppm and having has a tapped density of at least 1.0 g/cm.sup.3. An aluminum nitride powder containing from 0.01% to 10% by weight of a sintering aid is also disclosed, the aluminum nitride powder having an oleophilic surface and having a tapped density of at least 1.0 g/cm.sup.3. The aluminum nitride powder of the present invention has excellent moldability, has a high tapped density, is less in formation of coagulated particles, and has a sharp particle size distribution.

Abstract: Trans-2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane carboxylic acid esters which are intermediate of insecticides are prepared by allowing (1) alkali metal alkoxides and titanium alkoxides or (2) silicon iodides to react with cis- or cis-/trans-mixed 2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane carboxylic acid esters of the formula ##STR1## wherein X is a halogen atom and R is an alkyl, cycloalkyl or aralkyl group having 1-10 carbon atoms.

Abstract: A lead accumulator using dilute sulfuric acid as an electrolyte liquor is disclosed, in which the electrolyte liquor is fixed by absorption or impregnation into an ethylene copolymer resin or a molding thereof comprising from 40 to 90% by weight of an ethylene unit and from 10 to 60% by weight of at least one comonomer unit selected from (A) and ethylenically unsaturated comonomer unit having an amido group and an amino group in the molecule thereof and (B) an ethylenically unsaturated comonomer unit having an ester group and an amino group in the molecule thereof and having an average molecular weight of from 5,000 to 50,000. The lead accumulator can be produced easily and at a low cost without limitations of shape and volume and has high performance reliability.