著者
島田 洋子 伊藤 慶彦 米田 稔 森澤 眞輔
出版者
一般社団法人日本リスク研究学会
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.22, no.1, pp.25-32, 2012 (Released:2012-07-26)
参考文献数
37

Before the Fukushima Daiichi nuclear power plant accident, radionuclide like 137Cs released from atmospheric nuclear detonation tests and the Chernobyl accident has been transported worldwide in the environment and finally taken up by humans through various pathways. In this research, dietary intake of 137Cs and the health risks caused by prolonged radioactive global environment contamination were evaluated age-dependently for the reference Japanese since 1945 until 2010 by using the mathematical model for the evaluation of global distribution of 137Cs with food ingestion and domestic and international food supply model. The model estimates were compared with the monitoring data of 137Cs in Japanese total diet and 137Cs concentration in food as an attempt at validation. The results of this evaluation would be useful for understanding the background situations without the Fukushima accident and give important information for the radiological health risk assessment of the accident.
著者
林田 賢治 米田 稔 岡村 健司 広岡 淳 脇谷 滋之 妻木 範行
出版者
日本肩関節学会
雑誌
肩関節 (ISSN:09104461)
巻号頁・発行日
vol.17, no.2, pp.315-319, 1993-09-01 (Released:2012-11-20)
参考文献数
8
被引用文献数
1

To decide the appropriate treatment for articular-side partial rotator cuff tears (APRCT),31patients with arthroscopically documented APRCT were surgically treated and reviewed retrospectively. The mean age at time of operation was 31 years old (13-62) and the mean post-operative follow-up period was 22.5 months (12-66). APRCT was classified into three groups according to the depth of the cuff tear, the superficial tear (S-tear), the intermediate tear (I-tear), and the deep tear (D-tear).8 patients with a S-tear were treated by arthroscopic debridement of the lesion (S-tear &debridement group).23 patients had an I-tear.16 of them had an arthroscopic debridement of the lesion (I-tear & debridement group) performed of time, and 7 of them were treated by open repair procedure (I-tear & repair group).3 patients with a D-tear were treated by open repair procedure (D-tear & repair group). Arthroscopic or open subacromial decompression were simulteneously performed in all of the cases. The functional results were graded by Constant's shoulder rating scale (1987) which consisted of the evaluation of pain, function, range of motion, and strength of abduction. Clinical results were evaluated by the ratio of the rating scale; the involved side / the healthy side (%). Statistic significances were calculated by Student's t-test.According to the ratio of total clinical evaluation, the S-tear & debridement group was 99.3 +2.9%, the I-tear & debridement group was 97.4 + 4.4%, the I-tear & repair group was 87.3 + 7.7%, and the D-tear & repair group was 87.5 + 14.0%. There were no significant differences between the S-tear & debridement group to 2 and the I-tear & repair group to 4, but there was a significant difference between the I-tear & debridement group to the I-tear & repair group (p <0.01). The results of the strength of abduction were the S-tear & debridement group was 93.6 + 11.4%, the I-tear & debridement group was 98.4 + 18.7%, the I-tear & repair group was 78.6 + 11.2%, and the D-tear & repair group was 97.6 + 4.1%. A significant difference was also seen between the I-tear &debridement group to the I-tear & repair group (p <0.01).In this follow-up study, two things were clarified. Firstly, the clinical outcome of an arthroscopic debridement for APRCT was not influenced by the depth of a lesion with less than half of a rotator cuff thickness. Secondly, the arthroscopic debridement for an intermediate type APRCT with subacromial decompression provided a more favorable clinical outcome than did the open repair technique.
著者
西岡 和久 松井 康人 木村 寛之 佐治 英郎 米田 稔
出版者
公益社団法人 土木学会
雑誌
土木学会論文集G(環境) (ISSN:21856648)
巻号頁・発行日
vol.69, no.5, pp.I_67-I_72, 2013 (Released:2014-01-21)
参考文献数
9

本研究では,肺胞上皮に沈着したナノ粒子がどれだけ上皮内に取り込まれるのかについて,ヒトII型肺胞上皮細胞(A549)と修飾基の異なる3種類(カルボキシ修飾,アミノ修飾,修飾基なし)の蛍光ナノ粒子を用いて,「表面修飾」,及び「表面電位」に着目し,共焦点レーザー走査型顕微鏡によるイメージング,およびフローサイトメーターによる粒子を取り込んだ細胞数の定量を行った.その結果,表面電位と細胞への取り込み量の依存性に関しては明らかにできなかったものの,曝露時間が長い程取り込み量は増加し,特にカルボキシ修飾粒子で顕著であった.
著者
中村 謙吾 米田 稔
出版者
一般社団法人 廃棄物資源循環学会
雑誌
廃棄物資源循環学会論文誌 (ISSN:18835856)
巻号頁・発行日
vol.25, pp.25-35, 2014 (Released:2014-03-28)
参考文献数
16

蛍石を用いた精錬工程で発生する製鋼スラグを用いて,溶媒pHおよび温度変化による製鋼スラグの溶出量の検討を行った。また,溶出試験と同条件から粒径別の溶出量を検討した。溶出試験の結果,フッ素の溶出量は溶液のpHが影響していた。また,粒径別の溶出試験より表面からの深度に対する溶出領域と比較した場合,粒径が小さいほど推定溶出量と測定溶出値の差が大きくなった。一律推定溶出量と測定溶出量を比較すると,粒径を1.625-2, 0.425-0.5mmとした場合は各元素で0.1~10倍となった。試料粒径0-0.045mmの推定溶出量は,測定溶出量と比較して小さく (1/1000~1/10,000) なることが推測された。試料粒径0-0.045mmからの溶出は,溶出試験の溶出量に寄与しないことが示唆された。また,見かけ上製鋼スラグの溶出には,表面の1~0.1%の成分が関わっていることが示唆された。
著者
水野 直子 米田 稔
出版者
Japan Shoulder Society
雑誌
肩関節 (ISSN:09104461)
巻号頁・発行日
vol.31, no.3, pp.497-501, 2007
被引用文献数
7

Although arthroscopic techniques for anterior shoulder instability have generally yielded good results and decreased the morbidity, a recurrence has been the most serious postoperative complication. In 2005 we developed a new type of arthroscopic Bankart repair: the double anchor footprint fixation (DAFF) technique. It simulates a conventional open transosseous Bankart repair. The purpose of this study was to introduce this technique and evaluate the short-term surgical results. We investigated 45 shoulders (34 males and 11 females) which underwent a DAFF technique. The mean age at operation was 24.1 years old and the mean postoperative follow-up period was 13 months. DAFF technique was consisted of a trough preparation and double anchor footprint fixation in order to make a larger area of the footprint repair. The shoulders had their internal rotation immobilized for 3 weeks after the operation. We evaluated the postoperative range of motion, return to sports, recurrence and JSS shoulder instability score. Regarding the postoperative range of motion, elevation recovered early, but external rotation could not recover so early. More than 12 months after the operation, 23 patients completely returned to sports, 5 patients returned partially. There was no recurrence of a dislocation. The JSS-SIS improved from 52.9 preoperatively to 94.9 postoperatively. An arthroscopic Bankart repair with a DAFF technique could be performed successfully. We need a long-term follow-up and to study more about the time of starting ROM exercises.
著者
米田 稔 中山 亜紀 杉本 実紀 三好 弘一
出版者
京都大学
雑誌
基盤研究(B)
巻号頁・発行日
2009 (Released:2009-04-01)

本研究ではシリカナノ粒子を対象として、一般環境からのナノ粒子の曝露量評価を行った。シリカナノ粒子の生活環境中大気濃度をロープレッシャーインパクターで捕集し、ICP-AESで測定した。その結果、生活環境空気中シリカナノ粒子濃度として12. 7ng/m3という値を得た。この値をマウスの生体組織中シリカナノ粒子の分布モデルの計算に使用した結果、シリカナノ粒子の内、0. 3pgは肝臓に蓄積することが、また人間に対する分布モデルの計算では肝臓に1200pgのシリカナノ粒子が蓄積することが明らかとなった。

1 0 0 0 SLAP lesion

著者
米田稔
雑誌
臨整外
巻号頁・発行日
vol.29, pp.144-145, 1994
被引用文献数
2