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JAEA Reports

Review to give the public clear information on near surface disposal project of low-level radioactive wastes generated from research, industrial and medical facilities

Shobu, Nobuhiro; Kato, Masatoshi*; Takao, Tomoe*; Terashima, Daisuke*; Tanaka, Yoshie*; Shirasu, Hisanori*; Amazawa, Hiroya; Koibuchi, Hiroto; Nakata, Hisakazu

JAEA-Review 2013-028, 175 Pages, 2013/12

JAEA-Review-2013-028.pdf:10.13MB

JAEA has promoted near surface disposal project for low-level radioactive wastes generated from research, industrial and medical facilities. JAEA has carried out public information about the project. When some town meetings are held toward mutual understanding with the public more detailed and clear explanations for safety management of the project are needed especially. Therefore, the information provision method to make the public understand should be reviewed. Moreover, a survey should be carried out in order to get a sense of what the public knows, what it values and where it stands on nuclear energy and radiation issues, because the social environment surrounding nuclear energy and radiation issues has changed as a result of the accident at the Fukushima on March 11, 2011. This review clarified the points to keep in mind about public information on the project, and that public recognition or understanding toward nuclear energy and radiation was changed before and after the accident.

Journal Articles

X-ray diffraction recording from single axonemes of eukaryotic flagella

Nishiura, Masaya*; Toba, Shiori*; Takao, Daisuke*; Miyashiro, Daisuke*; Sakakibara, Hitoshi*; Matsuo, Tatsuhito; Kamimura, Shinji*; Oiwa, Kazuhiro*; Yagi, Naoto*; Iwamoto, Hiroyuki*

Journal of Structural Biology, 178(3), p.329 - 337, 2012/06

 Times Cited Count:3 Percentile:8.69(Biochemistry & Molecular Biology)

We report the first X-ray diffraction patterns recorded from single axonemes of eukaryotic flagella with a diameter of only $$<$$0.2 $$mu$$m, by using the technique of cryomicrodiffraction. A spermatozoon isolated from Drosophila melanogaster, was mounted straight in a glass capillary, quickly frozen and its 800-$$mu$$m segment was irradiated end-on with intense synchrotron radiation X-ray microbeams (diameter, 2 $$mu$$m) at 74 K. Well-defined diffraction patterns were recorded, consisting of a large number of isolated reflection spots. The patterns had features of an 18-fold rotational symmetry as expected from the axonemal structure. The diffraction patterns were compared with the results of model calculations based on a published electron micrograph of the Drosophila axoneme. The comparison provided information on the native state of axoneme, including estimates of axonemal diameter and interdoublet spacing.

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