MPGD R&D Activities in JAPAN

The 3 rd China - Japan

RD-flatness and RD-injectivity

It is proved that every commutative ring whose RD-injective modules are Σ-RD-injective is the product of a pure semi-simple ring and a finite ring. A complete characterization of commutative rings for which each artinian (respectively simple) module is RD-injective, is given. These results can be obtained by using the properties of RD-flat modules and RD-coflat modules which are respectively th...

Early markers of retinal degeneration in rd/rd mice.

PURPOSE In the rd/rd mouse, the cell death of rod photoreceptors has been correlated to abnormal levels of the cyclic nucleotide cGMP within photoreceptors. Given that cGMP is required for opening of the cationic channels, there is the possibility that a high cGMP concentration would maintain these channels open, at a high energy cost for the retina. METHODS We investigated whether cation cha...

Trends of Research Activities on Welding Process in Japan

This paper gives a recent progress of welding process research in Japan, especially, an instance in the capability of the visualization and prediction of welding arcs, though the dynamic observations of spectral image by a high-speed digital video-camera with a monochromator and also the calculations by numerical models. The dynamic observations lead to visualizations of metal vapor behavior in...

Activities of the Japan medical association team in response to the great East Japan earthquake.

About one year prior to the earthquake, the JMA’s Committee on Emergency and Disaster Medicine proposed that Japan Medical Association Team (JMAT) be formed and issued a press release to that effect. The JMA decided to form JMAT on March 15, 2011, in response to the earthquake, and requested that prefectural medical associations nationwide send JMAT to the affected areas as emergency medical re...