Abstract: A constant force generator includes a case of a tube-shaped ferromagnetic material and extending in an axial direction, a tube-shaped stator disposed in the case, and a rod-shaped shaft disposed in the tube-shaped stator via a gap. The tube-shaped stator includes N main permanent magnets magnetized in a radial direction and disposed adjacently at regular angular intervals of (360/N) degrees, and an even number of secondary permanent magnets magnetized in a circumferential direction and sandwiching each of the N main permanent magnets on both sides in the circumferential direction. The secondary permanent magnets sandwich the both sides of each main permanent magnet so that magnetic poles of the secondary permanent magnets, facing the both sides of the sandwiched main permanent magnet, have a polarity the same as an inside magnetic pole of the sandwiched main permanent magnet. The rod-shaped shaft at least includes a shaft portion of a magnetic material.

Abstract: The present invention aims at providing a compound that can be suitably used as a fluorescent dye or the like, a novel fluorescent dye and kit for easily detecting cells, a novel method for easily detecting cells or the like, and so on. A compound represented by the following formula (1) or a salt thereof: in the formula (1), R1 is a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms or the like; R2 and R3 are each independently a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms or the like; R4 and R5 are each independently an alkyl group having 1 to 12 carbon atoms or the like; n is an integer of 1 to 4; and a and b are each independently an integer of 0 to 4.

Abstract: The present invention relates to providing a novel method for easily detecting tumor cells in a tissue derived from an organism. The present invention includes a fluorescent dye for detecting tumor cells in a tissue, including a compound that exhibits solvatochromism. The present invention also includes a method for detecting tumor cells or specifying a tumor removal area, including applying the fluorescent dye to staining of a tissue derived from an organism and to an organism.

Abstract: An object of the present invention is to provide a new means for suppressing inhibition of proliferation of keratinocytes even when the keratinocytes start to come into contact with each other. The present invention solves the above problem by culturing keratinocytes in contact with a common medium with fibroblasts treated with a composition containing a specific compound.

Abstract: A Lactobacillus bifidus growth promoting composition which significantly grows lactobacillus bifidus and does not produce any side effect such as diarrhea, and a blend comprising the above composition and other edible ingredients, and the composition comprises at least one oligosaccharide selected among lactulose, fructo-oligosaccharide, and galacto-oligosaccharide, and raffinose as the active ingredients.

Abstract: A method for recovering amino acids, which comprises supplying a mixed solution containing inorganic acid salts, amino acids and non-electrolytes such as saccharides to a first-step resin layer comprising an Na type or K type strongly acidic ion exchange resin; separating an effluent into at least a first fraction containing coloring matters, acidic amino acids and ashes, a second fraction containing neutral amino acids and saccharides, and a third fraction containing betaines; supplying the second fraction to a second-step resin layer comprising at least one resin selected from the group consisting of NH4 type, Ca type and Mg type strongly acidic ion exchange resins, and optionally further supplying it to a third-step resin layer comprising an Mg type or Ca type strongly acidic ion exchange resin different from the resin of the second-step resin layer, thereby recovering various kinds of amino acids contained in an effluent.

Abstract: A Lactobacillus bifidus growth promoting composition which significantly grows lactobacillus bifidus and does not produce any side effect such as diarrhea, and a blend comprising the above composition and other edible ingredients, and the composition comprises at least one oligosaccharide selected among lactulose, fructo-oligosaccharide, and galacto-oligosaccharide, and raffinose as the active ingredients.

Abstract: A method for recovering amino acids, which comprises supplying a mixed solution containing inorganic acid salts, amino acids and non-electrolytes such as saccharides to a first-step resin layer comprising an Na type or K type strongly acidic ion exchange resin; separating an effluent into at least a first fraction containing coloring matters, acidic amino acids and ashes, a second fraction containing neutral amino acids and saccharides, and a third fraction containing betaines; supplying the second fraction to a second-step resin layer comprising at least one resin selected from the group consisting of NH4 type, Ca type and Mg type strongly acidic ion exchange resins, and optionally further supplying it to a third-step resin layer comprising an Mg type or Ca type strongly acidic ion exchange resin different from the resin of the second-step resin layer, thereby recovering various kinds of amino acids contained in an effluent.