Abstract: A nucleic acid amplification method is disclosed. The method employs a Bw adapter primer having a stem-loop structure to synthesize a complementary strand of a target region, followed by a further synthesis of a complementary strand employing an Fw adapter nucleotide that has a stem-loop structure and an extension-inhibiting modification at the 3?-end. The method makes it possible to simply and specifically form a dumbbell structure in which stem-loop structures are added to both ends of the complementary strand of the target region.

Abstract: A discharge valve mechanism has a plurality of discharge openings. The discharge openings are placed in an open or closed state by a plate-like valve element. Each of the discharge openings is formed at a respective location between a base end side and a leading end side of the valve element. The number of discharge openings to be placed in the open state is varied depending on the pressure and the flow rate of gas refrigerant discharged from a compression chamber.

Abstract: In a method of magnetizing a material of a permanent magnet portion provided in a rotor for a permanent-magnet motor, the material of the permanent magnet portion is embedded inside the rotor body, while the permanent magnet material has anisotropy in a direction penetrating the permanent magnet portion in section, and then the rotor is incorporated in a magnetizing unit and held in a rotatable manner, and the permanent magnet material is magnetized by flowing a magnetizing current through windings under the condition that the rotor is rotatably held in the magnetizing unit. Thus, the permanent magnet material is completely magnetized in a normalized direction, and even if the rotor is shifted from the normalized position, the rotor is retained back to the normalized position by a magnetic torque.

Abstract: A resin composition, particularly for an ink printing composition, comprising a polyurethane (meth-) acrylate resin, N-vinylpyrrolidone, and acryloylmorphline, with a photoinitiator when used as an ultraviolet raycurable ink printing composition, and without a photoinitiator when used as an electron beam-curable ink printing composition.