Abstract: [Subject] To provide regulatory T cells that suppress activated CD8+ killer T cells with tissue-damaging or cytotoxic effects. [Solution means] CD8+CD122+ T cell subsets are provided as regulatory T cells that suppress activity of activated CD8+ killer T cells. Administration of these T cell subsets can suppress tissue/cell damages. In addition, it has become possible to explore agents that augment immunosuppressive activity of these T cell subsets by using the experimental method described in the present invention.

Abstract: An accelerator capable of detecting a turning angle of an accelerator pedal with high accuracy includes a bearing part, an urging part, an accelerator pedal, a stopper, and a turning angle sensor. The accelerator pedal has a turning shaft supported by the bearing part and is turned forward when a depressing force is applied thereto and is turned reversely when the urging force of the urging part is applied thereto. The stopper abuts against the accelerator pedal to limit the reverse turn of the accelerator pedal and substantially simultaneously guides the accelerator pedal in a direction equivalent to that which the urging force is applied. The turning angle sensor detects the turning angle of the accelerator pedal.

Abstract: In a water treatment apparatus, the time for treatment after water to be treated is introduced into an electrolytic bath is reduced. The water to be treated in a reservoir is subjected to electrolysis at a first electrolytic bath. Electrolysis is carried out at respective first and second electrolytic baths. By the electrolysis at the second electrolytic bath, hypochlorous acid is generated from chloride ions at the anode side. The solution subjected to electrolysis at the second electrolytic bath is mixed at a predetermined site of the pipe connected between the reservoir and the first electrolytic bath with the water output from the reservoir via a pipe prior to introduction into the first electrolytic bath. Accordingly, the water subjected to electrolysis at the first electrolytic bath can be sterilized in advance by the hypochlorous acid generated by electrolysis at the second electrolytic bath.

Abstract: A green garbage treatment apparatus which comprises a disposer, a flow rate adjustment tank for temporarily storing a mixture of a green kitchen garbage ground by the disposer and a kitchen waste water, a solid-liquid separation device for separating the mixture into a solid component and a liquid component, a composting device for composting the solid component, a precipitation-separation device for allowing fine particles in the liquid component to precipitate, a waste water treatment device for subjecting the liquid component fed from the precipitation-separation device via a dividing device to a biological treatment to thereby obtain a treated water, and an insect removal device for removing deleterious insects such as a fly which are generated, for example, in the waste water treatment device. The apparatus is advantageous, in particular, in that it can remove insects such as a fly which are generated in the waste water treatment device.

Abstract: A primary treating tank (10) comprises a filling layer (14) and a foam glass layer (16) below the filling layer (14). The foam glass layer (16) contains foam glass grains each of which is larger in a grain diameter than a wood chip of the filling layer (14) so that the foam glass layer (16) is superior in water passing ability to the filling layer (14). In this arrangement, a space ratio is larger with a lower layer. This arrangement promotes smooth downward shifting of primary treated water. A secondary treating tank (30) also has a laminating structure including a filling layer (34) and a form glass layer (36). As air is supplied to the foam glass layer (36), the filling layer (34) is kept in a preferable aerobic condition so that preferable aerobic biological treatment is carried out on the treated water supplied from the primary treating tank (10).

Abstract: A rotary position detector comprises an integrally molded rotor made of a synthetic resin to which a contact is fixed, a housing and a cover member on which a resistance circuit surface is formed. A contact surface and the resistance circuit surface to which the contact is attached has a cylindrical recess disposed on the same axis center as the shaft or a protrusion engaging in the recess. Alternatively, the resistance circuit surface may be provided on the rotor and the contact is provided on the cover member. A terminal contact which integrates an external contact terminal and a contact may be employed.

Abstract: An electric control apparatus includes a magnetic flux generating device for generating a magnetic flux. A first magnetic-to-electric transducer element detects a magnitude of the magnetic flux which is responsive to a motion of a movable body. A second magnetic-to-electric transducer element detects the magnitude of the magnetic flux which is responsive to the motion of the movable body. A control signal outputting device compares a detection signal output from the first magnetic-to-electric transducer element and a detection signal output from the second magnetic-to-electric transducer element with each other. The control signal outputting device is operative to output a control signal based on a result of the comparison between the detection signals.

Abstract: A mouse lacking expression of a subunit of the IL-2 receptor in certain cells of the immune system is provided. Also provided are methods of using such mice.

Abstract: The fundus camera of this invention for taking photographs by fluorescence comprises an exciter filter 7 in an illuminating optical system 1, and a barrier filter 16 in a photographic optical system 2. A member 11 for eliminating harmful reflected light from an objective lens 13 is also provided in the illuminating optical system 1. This member 11 for eliminating harmful reflected light comprises dark spots 21, 22, which transmit light below a lower wavelength limit, and cut out light above the lower wavelength limit, of the barrier filter 16.