巻号一覧
28 巻 (1987)
- 4 号 p. 233-
- 3 号 p. 191-
- 2 号 p. 141-
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28 巻, 2 号
選択された号の論文の5件中1～5を表示しています
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渡部 輝久, 菅原 幸喜1987 年 28 巻 2 号 p. 141-149
発行日: 1987/06/15
公開日: 2006/06/16
ジャーナル フリーGamma-ray spectrometry analysis was made of urine samples from 43 tourists who had visited Kiev late in April, 1986. Seven of 43 samples contained significant amounts of 137Cs ranging in concentration from 0.14 to 0.40 pCi/ml along with other fission products. The initial intake of 137Cs was estimated to be 50 to 230 nCi, which would result in a rise of the level of 137Cs retention up to two orders of magnitude.
Tourists'' baggage was also submitted to gamma-ray spectrometry analysis at NIRS*. The results suggested the presence of 239Np in air in Kiev and the possibility of the inhalation of its daughter nuclides by tourists. The intake of 239Pu was estimated to be 220 to 1400 pCi from each estimated value of the 239Pu/ 239Np radioactivity ratio in the fuel, the 239Np/ 137Cs ratio in air and the 137Cs body burden.抄録全体を表示PDF形式でダウンロード (280K) -
立崎 英夫, 稲田 哲雄, 清水 毅志, 有本 卓郎, 佐藤 真一郎, 秋貞 雅祥1987 年 28 巻 2 号 p. 150-155
発行日: 1987/06/15
公開日: 2006/06/16
ジャーナル フリーEarly skin reactions were observed on mouse legs irradiated in the spread out Bragg peak (SOBP) of a 250MeV proton beam, and the unmodified Bragg peak of that beam, or 290kVp X-rays. The fifty percent moist desquamation doses for the proton SOBP, proton peak, and for X-rays were 29.7Gy, 24.5 Gy, and 21.9Gy, respectively. The Bragg peak caused more severe early skin reactions than did SOBP.抄録全体を表示PDF形式でダウンロード (205K) -
山本 務, KENNETH J. KOPECKY, 藤倉 敏夫, 徳岡 昭治, 門前 徹夫, 西森 一正, 中島 栄二, 加藤 寛夫1987 年 28 巻 2 号 p. 156-171
発行日: 1987/06/15
公開日: 2006/06/16
ジャーナル フリーThe incidence of lung cancer during 1950-80 in a cohort of Japanese A-bomb survivors and controls was investigated. A total of 1, 057 cases were identified; 608 of these diagnoses were based on histopathological examination, and 442 were confirmed by the present investigators. The distributions of histologic types varied significantly between the sexes (p < .001), with adenocarcinoma more frequent among women and epidermoid and small cell carcinoma more frequent among men. The distributions of primary sites did not differ significantly between the sexes. The relative risk (RR) of lung cancer increased significantly with A-bomb radiation dose (p < .0001): based on tentative 1965 dose estimates as revised in 1978 (T65DR) and a linear RR model, the estimated RR at 100 rad (±s.e.) is 1.41 ± 0.09. Among Hiroshima survivors the women experienced radiation-related excess RR nearly twice as great as men (p = .06). RR increased with decreasing age at the time of bombing (ATB; p = .07), and after allowing for this effect, there was no significant evidence that RR varied systematically with attained age. Small cell carcinoma displayed somewhat greater sensitivity to radiation than did adenocarcinoma or epidermoid carcinoma; however the variation between the histology-specific RR functions was not statistically significant (p = .44).抄録全体を表示PDF形式でダウンロード (701K) -
岡市 協生1987 年 28 巻 2 号 p. 172-185
発行日: 1987/06/15
公開日: 2006/06/16
ジャーナル フリーUV irradiation to the spores of Dictyostelium discoideum NC4 resulted in a more prolonged delay of amoeba-emergence from swollen spores with increasing UV fluence. During the germination, an inhibition of total RNA synthesis and a shift of stage of maximum RNA synthesis to the later period were observed. The maximum poly(A)+ RNA synthetic activity was found on an early stage of amoeba-emergence prior about 1 h to the beginning of rRNA synthesis in unirradiated spore germination; but, in UV-irradiated spore germination, the stage of maximum poly(A)+ RNA synthesis shifted to the later stage of germination with increasing UV fluence. A decreased synthesis of poly(A)+ RNA and a severe inhibition of rRNA synthesis were observed on UV-irradiated and germinated spores, but no significant inhibition of 4-5 S RNA synthesis was detected. Actinomycin D suppressed almost completely the rRNA synthesis of emerged amoebae but the drug apparently did not affect the emergence of amoebae at any stage of germination. It was postulated that the delay of amoeba-emergence in UV-irradiated spore must be mainly due to the shift of the stage of maximum synthesis of poly(A)+ RNA to the later stage of germination.抄録全体を表示PDF形式でダウンロード (561K) -
遠藤 大二, 鈴木 晶子, 桑原 幹典, 佐藤 博, 佐藤 文昭1987 年 28 巻 2 号 p. 186-189
発行日: 1987/06/15
公開日: 2006/06/16
ジャーナル フリーPDF形式でダウンロード (151K)
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