Abstract: A power supply switching device (20) according to the present disclosure is used in supplying power to chargers (30) installed in the parking lot of a housing complex. The power supply switching device (20) includes switches (21) and a controller (22). The switches (21) switch the power supply on and off to each group among groups into which the chargers (30) are divided. The controller (22) controls the switches (21). The controller (22) controls the switching on and off of the switches (21) so that only one switch (21) among the switches (21) is on, or all of the switches (21) are off.

Abstract: Ecopots having a large number of holes permeable to the culture solution and air are used for disposing seeding and seedling pots or for planting seedlings and are hung in the space in a house, a bucket for collecting the drips of the culture solution is placed below each pot for collecting the residual solution to thereby prevent the infection by pathogens, and a balancing toy-like hanger hung vertically from a hook hung movably from a shelf pole in the house via a loop clutch, an ecopot hanging chain, a main melon stem attracting cord, a melon fruit hanging cord and so forth are used to render the ecopot hung from the ecopot hanging chain orientation-variable in all directions so that oxygen may be fed abundantly to the rooting zone of the horticultural plant and the plant may receive the sunshine with ease.

Abstract: [Object] To use ecopots convertible to a regenerated compost in horticultural plant cultivation, eliminate the disturbances in fruit growth due to disturbances in oxygen feeding and due to a lack of sunshine, prevent the infection by pathogens and enable the standing and facing working position without cultivation soil tillage.

Abstract: An immunoassay element for quantitatively analyzing a macromolecular antigen by determining the change in enzymatic activity caused by a reaction between the macromolecular polymer antigen and an enzyme-labelled antibody. The immunoassay element comprises a substrate layer containing a non-diffusible substrate which forms a diffusible material in the presence of the enzyme, and a reagent layer containing a fragmenting enzyme for further fragmenting the diffusible material into a lower molecular weight product. Also provided is a process for quantitatively analyzing a macromolecular antigen in a sample by the use of the immunoassay element.

Abstract: An immunoassay element for quantitatively analyzing a ligand by determining the change in enzymatic activity caused by a reaction between the ligand, a linked product of the ligand and a high molecular weight compound and an enzyme-labelled antibody. The immunoassay element comprises a substrate layer containing a non-diffusible substrate which forms a diffusible material in the presence of the enzyme, and a reagent layer containing a fragmenting enzyme for further fragmenting the non-difussible material. Also provided is a process for quantitatively analyzing a ligand contained in a sample by the use of the immunoassay element.

Abstract: A process for producing a copper phthalocyanine compound, which comprises heating and reacting phthalic acid or a phthalic acid derivative, urea or a urea derivative and cuprous chloride in the presence of a catalyst in an inert organic solvent, wherein the cuprous chloride is used in an amount of from 95 to 99% of the stoichiometric amount relative to the phthalic acid or the phthalic acid derivative.

Abstract: A multi-pH chemiluminescence-based assay method comprising first-stage light production by the activation by cleavage of a phosphatase cleavable dioxetane derivative within a pH range optimal for enzyme catalysis, followed by the second-stage generation of increased light energy from the products of enzyme-catalyzed cleavage of the dioxetane derivative by the adjustment of the pH to a strongly alkaline pH optimal for the generation of light energy. The assay method is suitable for both solution phase and solid state assay formats. Light generation enhancers can be used further to increase the light yield.

Abstract: In a process for producing a metal phthalocyanine and/or its derivative by heating phthalic anhydride and/or its derivative, urea and a metal compound in an organic solvent in the presence of a catalyst, or by heating phthalodinitrile and a metal or a metal compound in an organic solvent, the improvement wherein the reaction for the production of the metal phthalocyanine and/or its derivative is conducted by an addition of cyanuric acid and/or its derivative.

Abstract: 1,4-Dihydroanthraquinones are produced by oxidizing 1,4,4a,9a-tetrahydroanthraquinone or 1,4-dihydroanthrahydroquinone or an inert substituted derivative thereof with molecular oxygen in an aqueous medium at the reaction temperature of lower than 70.degree. C. under the condition of pH of 8.5 to 12.