Abstract: It is an object of the present invention to provide the method for determining cholesterol in lipoprotein and reagent for determining cholesterol comprising the polymer, and the present invention relates to the reagent for determining cholesterol in lipoproteins such as high-density lipoprotein (HDL), low-density lipoprotein (LDL) and very low-density lipoprotein (VLDL) and the determination method using the polymer comprising the following units as constituents: (iv) a polyethylene glycol segment represented by the general formula [1]: —(CH2CH2O)k—??[1] (wherein, k represents an integer of 10 to 250); (v) a monomer unit represented by the general formula [2]: (wherein R1 represents a hydrogen atom or C1-C3 alkyl group); and (vi) a monomer unit represented by the general formula [3]: [wherein, R2 represents a hydrogen atom or C1-C3 alkyl group, and R3 represents a group represented by the general formula [4]: —COOR4??[4] (wherein, R4 represents an alkyl group, a haloalkyl group or a bornyl gro

Abstract: A miniature speaker device includes a housing, a speaker mounted on the housing, a passive radiator mounted on the housing and vibrating in resonance with vibration of the speaker and having no driving system and a low frequency range amplification circuit for amplifying sound pressure in frequency components of a low frequency range of a single audio signal input in the speaker.

Abstract: A miniature speaker device includes a housing, a speaker mounted on the housing, a passive radiator mounted on the housing and vibrating in resonance with vibration of the speaker and having no driving system and a low frequency range amplification circuit for amplifying sound pressure in frequency components of a low frequency range of a single audio signal input in the speaker.

Abstract: It is an object of the present invention to provide the method for determining cholesterol in lipoprotein and reagent for determining cholesterol comprising the polymer, and the present invention relates to the reagent for determining cholesterol in lipoproteins such as high-density lipoprotein (HDL), low-density lipoprotein (LDL) and very low-density lipoprotein (VLDL) and the determination method using the polymer comprising the following units as constituents: (iv) a polyethylene glycol segment represented by the general formula [1]: —(CH2CH2O)k—??[1] (wherein, k represents an integer of 10 to 250); (v) a monomer unit represented by the general formula [2]: (wherein R1 represents a hydrogen atom or C1-C3 alkyl group); and (vi) a monomer unit represented by the general formula [3]: [wherein, R2 represents a hydrogen atom or C1-C3 alkyl group, and R3 represents a group represented by the general formula [4]: —COOR4??[4] (wherein, R4 represents an alkyl group, a haloalkyl group or a bornyl g

Abstract: A clip type anchor for orthodontic treatment comprises piercing portions for piercing a skin and fitting a bone, and a connection portion connecting the piercing portions to each other. The connection portion biases the piercing portions toward the bone. A connection portion is substantially U-like shaped, and piercing portions fit an inside and an outside of an alveolar bone, thereby fixing the anchor to the alveolar bone. In an anchor comprising piercing portions for piercing a skin and fitting a bone, and a connection portion connecting the piercing portions to each other, the connection portion biases the piercing portions so as to either increase or decrease a distance between the piercing portions.

Abstract: A knitting instrumentality for use in a knitting machine and method of forming the same is provided and includes an elongate body member (10, 110, 210) stamped from sheet metal (11, 111, 211) in a predetermined shape and having a fine concave-and-convex pattern (12, 113, 114, 215) formed in the side faces thereof to reduce the contact area of such knitting instrumentality when placed in the knitting machine to reduce the static frictional forces thereon.

Abstract: A power transmission belt having a center belt with a length, an inside surface, and an outside surface. Upper and lower blocks are provided and each has a leading face, a trailing face, and laterally oppositely facing pulley-engaging side surfaces. The upper and lower blocks are connected to each other to maintain the upper block, lower block and center belt together in an operative relationship without penetrating the center belt. At least one of the pulley-engaging side surfaces on at least one of the upper and lower blocks is uninterrupted between the leading and trailing faces on the one of the upper and lower blocks so that the at least one side surface can engage a cooperating pulley surface along an uninterrupted line between the leading and trailing faces of the at least one side surface.

Abstract: The amount of cholesterol in low density lipoproteins in a sample can be measured by contacting the sample with one or more reagent solutions to carry out the reaction in the presence of a polyanion and an amphoteric surfactant, followed by optical measurement of the reaction product.

Abstract: Cholesterol in low density lipoproteins can be measured specifically and precisely by optically measuring a reaction product of a living sample with cholesterol oxidase or cholesterol dehydrogenase in the presence of an amphoteric surfactant. In addition to the above processes for measurement, the present invention provides reagent compositions and kits for measuring cholesterol in low density lipoprotein.

Abstract: A low-NOx boiler comprises a burner for burning gaseous fuel, heat transfer pipes heating water by combustion heat of the burner to generate steam and having a passage through which water flows, a steam drum communicating with the heat transfer pipe and accumulating the steam from the heat transfer pipe, and an exhaust gas duct located in the furnace to exhaust combustion gas generated by combustion of gaseous fuel outside of the boiler. The boiler further comprises unburnt gas burner in the exhaust gas duct for burning unburnt content in the combustion gas flowing in the duct. The unburnt gas burner includes a nozzle for injecting premixture flow of fuel and combustion air and flame holding plate located near the downstream side of the outlet of the nozzle to interrupt the premixture flow to form a circulating flow on downstream side of the flame holding plate. As gaseous fuel and air are mixed in advance and a flame is formed, the flame length can be shortened.

Abstract: A vacuum suction device comprises a vacuum suction plate formed by baking a porous material and having a flat suction face for holding a workpiece by suction; a base abutting on a bottom of the vacuum suction plate for supporting the vacuum suction plate and having a plurality of suction grooves in a part of a surface of the base abutting on the bottom of the suction plate, the suction grooves being coupled to a pipe of the base; an intake device coupled to the pipe of the base; a peripheral member formed of an airtight material for encircling the suction plate; and means for preventing a grinding liquid from getting into the vacuum suction device through the suction grooves. The preventing means prevents reduction in suction force applied by the intake device acting on the workpiece.

Abstract: A supporting structure for a thickness-shear type crystal oscillator for watches which has an excellent resistance to shocks, which is very compact in construction and which can support not only an annular crystal piece but also support a rectangular crystal piece is disclosed. The supporting structure comprises a supporting frame which is provided at its opposed inner periphery with tongues adapted to be engaged with corresponding notches provided on opposed end portions of a crystal piece, respectively.

Abstract: An improved AT-cut crystal oscillator for electronic watches. The AT-cut crystal oscillator is of substantially disc-shape. Furthermore, the AT-cut crystal oscillator is shaped in cross-section such that the periphery of the disc-shaped crystal oscillator is abruptly tapered. In the preferred embodiment, the cross-section is trapezoidal.

Abstract: The invention relates to a support structure for a thickness-shear mode, convex lens type oscillator.The support structure contains an elastic ring made from an insulating material such as nylon. This ring is formed with a plurality of spaced, radially inwardly and integrally extending projections from the ring proper and said projections represent concentric recesses of opposite configurations one after another adapted for establishing pressure contact with the quartz crystal at their opposite surfaces and at different peripheral areas thereof.