Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Saito, Kimiaki; Mikami, Satoshi; Ando, Masaki; Matsuda, Norihiro; Kinase, Sakae; Tsuda, Shuichi; Yoshida, Tadayoshi; Sato, Tetsuro*; Seki, Akiyuki; Yamamoto, Hideaki*; et al.
Journal of Environmental Radioactivity, 210, p.105878_1 - 105878_12, 2019/12
Times Cited Count：33 Percentile：80.86(Environmental Sciences)Saito, Kimiaki; Mikami, Satoshi; Ando, Masaki; Matsuda, Norihiro; Kinase, Sakae; Tsuda, Shuichi; Sato, Tetsuro*; Seki, Akiyuki; Sanada, Yukihisa; Wainwright-Murakami, Haruko*; et al.
Journal of Radiation Protection and Research, 44(4), p.128 - 148, 2019/12
Mikami, Satoshi; Matsuda, Norihiro; Ando, Masaki; Kinase, Sakae; Kitano, Mitsuaki; Kawase, Keiichi; Matsumoto, Shinichiro; Yamamoto, Hideaki; Saito, Kimiaki
Radioisotopes, 64(9), p.589 - 607, 2015/09
This article presents the features of regional distributions and temporal changes in air dose rate and radionuclide deposition densities in Fukushima on the basis of analyses on large-scale environmental monitoring results using diverse methods. The continuity of decontamination effects is discussed according to repeated monitoring data after the decontamination model project. Further, some examples are shown on the projection of air dose rates together with the ecological half lives for different land uses.
counting to organ doses in FDG-PETTsuda, Keisuke; Kinase, Sakae; Fukushi, Masahiro*; Saito, Kimiaki
Hoken Butsuri, 42(4), p.349 - 352, 2007/12
no abstracts in English
Tsuda, Keisuke; Kinase, Sakae; Fukushi, Masahiro*; Saito, Kimiaki
KEK Proceedings 2006-4, p.88 - 93, 2006/11
no abstracts in English
Saito, Kimiaki; Kinase, Sakae; Fujisaki, Tatsuya*; Hiraoka, Takeshi*; Saito, Hidetoshi*; Tsuda, Shuichi; Sato, Kaoru; Takashima, Fusao*
Hoken Butsuri, 41(3), p.158 - 168, 2006/09
no abstracts in English
F-FDG Positron Emission Tomography using voxel phantomsTsuda, Keisuke; Kinase, Sakae; Fukushi, Masahiro*; Saito, Kimiaki
no journal, ,
no abstracts in English
Tsuda, Keisuke; Fukushi, Masahiro*; Myojoyama, Atsushi*; Kitamura, Hideaki*; Inoue, Kazumasa*; Nakaya, Giichiro*; Kimura, Junichi*; Sawaguchi, Masato*; Kinase, Sakae; Saito, Kimiaki
no journal, ,
Positron emission tomography (PET) is very effective in the diagnosis and management of patients with various types of cancers. PET scanning with the tracer FDG is widely used in clinical PET. However, the effective dose constant of the positron emitter is about eight times of nuclide 
Tc used in a nuclear medicine diagnosis widely. Severe radiation protection is necessary for development of the examination with a positron emitter. Radiation protection in the PET institution therefore and safe security are problems. Hence, lead glass has attracted considerable attention as the radiation shielding materials of the PET institution. In the present study, we received a request of the radiation shielding ability evaluation of two kinds of lead glass made in Pilkington plc. The aim of the present work is the radiation shielding ability evaluation for positron emitter such as F(511 keV) of the lead glass. The shielding ability evaluation has been studied in the experimental and the Monte Carlo simulation evaluation. Consequently, effective dose transmission factor with experimental and the Monte Carlo simulation value was calculated. There were enough protection effects to evaluated lead glass. Furthermore, radiation shielding ability evaluation for 
Cs(662 keV), 
Co(1.17, 1.33 MeV) was performed, and it was shown that there was a similar protection effect.
Ohara, Takashi; Adachi, Motoyasu; Tamada, Taro; Kuroki, Ryota; Kondo, Hidemasa*; Nishimiya, Yoshiyuki*; Tsuda, Sakae*
no journal, ,
no abstracts in English
Ohara, Takashi; Adachi, Motoyasu; Tamada, Taro; Kuroki, Ryota; Kondo, Hidemasa*; Nishimiya, Yoshiyuki*; Tsuda, Sakae*
no journal, ,
no abstracts in English
Ohara, Takashi; Adachi, Motoyasu; Shimizu, Rumi; Tamada, Taro; Kuroki, Ryota; Nishimiya, Yoshiyuki*; Kondo, Hidemasa*; Tsuda, Sakae*
no journal, ,
no abstracts in English
Ohara, Takashi; Adachi, Motoyasu; Shimizu, Rumi; Kurihara, Kazuo; Tamada, Taro; Kuroki, Ryota; Nishimiya, Yoshiyuki*; Kondo, Hidemasa*; Tsuda, Sakae*
no journal, ,
no abstracts in English
Enrichment study for paddy rice with a focus on its effect on nitrogen cycleHayashi, Kentaro*; Hasegawa, Toshihiro*; Tokida, Takeshi*; Ono, Keisuke*; Matsuda, Kazuhide*; Toyoda, Sakae*; Yano, Midori*; Sudo, Shigeto*; Wagai, Rota*; Matsushima, Miwa*; et al.
no journal, ,
National Institute for Agro-Environmental Sciences, Japan, established new Free-Air CO Enrichment (FACE) facilities for paddy rice in central Japan (Tsukuba FACE) in April, 2010. Early FACE studies were originally designed to investigate changes in plant growth, crop yield, and carbon cycle under elevated CO and temperature. In addition to these research agenda, a three-year project at Tsukuba FACE that assesses the changes in nitrogen cycle due to climate manipulation (FACE-N) started in April, 2010. The FACE-N project has the following themes: (1) atmosphere-paddy exchange of nitrogen; (2) nitrogen-related processes in a soil-rice system; and (3) development of the sophisticated nitrogen cycling model at a plot scale and of the regional nitrogen assessment system using remote-sensing technique and geographic information system (GIS).
Shimizu, Rumi; Matsumoto, Fumiko; Arai, Shigeki; Ohara, Takashi; Adachi, Motoyasu; Tamada, Taro; Kuroki, Ryota; Nishimiya, Yoshiyuki*; Kondo, Hidemasa*; Tsuda, Sakae*
no journal, ,
no abstracts in English
Adachi, Motoyasu; Ohara, Takashi; Nishimiya, Yoshiyuki*; Kondo, Hidemasa*; Shimizu, Rumi; Tamada, Taro; Tsuda, Sakae*; Kuroki, Ryota
no journal, ,
Antifreeze proteins can interfere with growing of ice and are focused from the viewpoint of the basic principles and practical applications in science and technology. Previously, it was found that most of the mutant nfeAFP6s showed similar activity to that of the wild type nfeAFP6 whereas A20V-mutant nfeAFP6 showed strong anti-freezing activity. In this study, crystal structures of the wild type and the A20V-mutant AFPs were determined to 1.2 and 1.8
resolution, respectively, by X-ray crystallography to investigate the difference of hydration structure around the essential area. The side chain of Val20 in A20V-mutant faces to the side chain Gln9, and make van der Waals interactions with Gln9 and Thr18. We found the locations of some bound water molecules at the mutated region in A20V-mutant were different from those in wild type. These observations may illustrate the complexity of what hydration structure constitutes to an ice-binding and anti-freezing activity.
