Abstract: An air turbine handpiece comprises a grip portion and a head portion disposed at a tip of the grip portion. In the handpiece, a rotor is disposed in a chamber in the head portion, and a cutting tool is detachably attached to a rotation shaft which is rotated integrally with the rotor. A nozzle opening for injecting air toward a turbine blade portion and an exhaust opening for exhausting the injected air to the outside are opened to the chamber of the head portion. An arc width of the nozzle opening in a circumferential direction is two or more times a height in a direction of a rotation axis of the rotor. The nozzle opening is formed so as to extend in a width direction.

Abstract: Human M-CSF preparations and recombinant human M-CSF preparations against myelodysplastic syndrome, malignant tumor and hyperlipemia and auxiliary therapeutic preparations to be dosed along with platinum-complex anticancer preparations.

Abstract: A magnetic tape loading apparatus has a rotatable cylindrical drum, tape guides, tape pulling movable members and guide members. The guide members guide the tape guide and control a posture of the tape guide by changing the position and the inclination.

Abstract: A magnetic tape loading apparatus includes a magnetic tape take-out device slidingly movable on a base and tape take-out device control means of cam type provided on such a base, in order to maintain a predetermined positional relation between the magnetic tape and a rotational cylinder, when the magnetic tape contained within the cassette is taken out helically wound around the rotational cylinder or is stored into the cassette.

Abstract: A magnetic tape loading apparatus includes a magnetic tape take-out device slidingly movable on a base and tape take-out device control means of cam type provided on such a base, in order to maintain a predetermined positional relation between the magnetic tape and a rotational cylinder, when the magnetic tape contained within the cassette is taken out as helically wound around the rotational cylinder or it is stored into the cassette.

Abstract: A light-emitting element and light-receiving elements are embedded upright in a single printed wiring board for cooperating with one another in detecting the leader tape portion of a magnetic tape. Such a printed wiring board is fixed to a chassis by means of which a magnetic tape cassette is held in position. This arrangement enables a reduction in the number of leads and connectors, and hence greatly decreases the number of connections to the body of a magnetic recording and reproducing apparatus, thereby improving its adaptability with respect to automated assembly.

Abstract: This invention relates to a substance having an anti-infective activity which comprises a polysaccharide separated from the cell wall of bacteria belonging to genus Bifidobacterium specified by Bifidobacterium infantis, Bifidobacterium longum and the mixture thereof, and mainly composed of glucose and galactose at the molar ratio of 1:about 2.8.

Abstract: A plurality of optical guide paths are built in a guide path plate. A plurality of optical guide posts are erected on the guide path plate so that each may oppose to one end of the corresponding optical guide path. The other end of at least one of the optical guide paths is optically connected to a light projecting portion, and the other end of at least another of the optical guide paths is optically connected to a light receiving portion. A part to-be-sensed which is movable is located between the distal ends of the optical guide posts whose base ends are connected to the corresponding optical guide paths. The presence of the part to-be-sensed is detected in such a way that the part to-be-sensed interrupts or transmits light which passes between the distal ends of the optical guide posts.

Abstract: A magnetic recording and reproducing apparatus including a reel drive system having a first transmitting path for high-speed magnetic tape feed, and a second transmitting path for constant-speed magnetic tape feed. The first transmitting path includes a drive pulley for driving a pair of magnetic tape reels through oscillating idler means which is supported on a support shaft located on a bisector perpendicular to the center of the pair of magnetic tape reels to directly transmit the rotation of a reversible motor to the drive pulley. The second transmitting path transmits the rotation of the reversible motor through a slip mechanism to obtain a predetermined output torque. One of the two transmitting path is selected for each operation mode as switching of the operation modes is effected.

Abstract: Human urine-origin colony-stimulating factor and kallikrein are separated in pure form, respectively, from an aqueous solution thereof, such as a urinary protein-concentrated solution by subjecting the solution added with a stabilizer such as octyl-phenoxypolyethoxyethanaol or polyethylene glycol both having a molecular weight of 1,000-10,000, to high-performance gel filtration effective in molecular exclusive limit of 10.sup.5 -5.times.10.sup.5 as determined with globular protein.

Abstract: A magnetic recording and reproducing apparatus having a single electromagnet for driving an idler mechanism for driving a take-up reel mount in a forward playback operation, a brake mechanism for a supply reel in a forward playback operation and a brake mechanism for the take-up reel mount. A high speed capstan-driven tape transport in both forward and reverse directions is attained by a simple construction.

Abstract: When operation mode is switched from recording to pause mode, a magnetic tape on which signals were recorded previously is slightly rewound backward by a predetermined length and is maintained in the pause mode operation state. When the pause condition is released, reproducing operation is performed to detect a phase difference between the reproduced control signal and a control signal of a video signal to be newly recorded. The tape speed is rapidly changed in accordance with the detected phase difference, so that the phase difference between the reproduced control signal and the control signal to be recorded is reduced to zero. Then, when a discontinuous scene recording is performed by switching from pause to recording operation mode, the phase coincidence has been achieved thereby enabling the phase-coincidence recording of video signals. Thus, upon reproducing, a clear picture with no disturbance can be presented even at the interconnection of signals for different scenes.