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核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

Laboratories and the Hospital of The Rockefeller Institute for Medical Research.

J Exp Med. 1930 May 31;51(6):921-32. doi: 10.1084/jem.51.6.921.

For the two motile bacilli, B. coli and B. aertryke, the absorption of a single 155 K.V. electron is sufficient to cause death. Furthermore, all, or nearly all, the electrons absorbed are lethal. The same is undoubtedly true of Staphylococcus aureus. In addition to providing a quantitative picture of the interaction of bacteria and cathode rays, these results suggest that radiation of the energy content used in our experiments is not suitable for altering the inheritable characteristics of bacteria. 2. The differences in sensitivity to cathode rays shown by the bacteria studied can be explained by the purely physical factor of size. 3. Counts giving significant conclusions concerning killing rates can be obtained only if there is no clumping of the cells when spread and only if the cells are not allowed to multiply before irradiation. Both these precautions seem rarely to have been met in the experiments that have in the past been made with X-rays and other forms of radiation.

对于两种能动杆菌，大肠杆菌和产气荚膜梭菌，吸收一个 155 千伏的电子就足以导致死亡。此外，所有或几乎所有吸收的电子都是致命的。金黄色葡萄球菌无疑也是如此。除了提供细菌与阴极射线相互作用的定量描述外，这些结果还表明，我们实验中使用的能量含量的辐射不适合改变细菌的可遗传性特征。
研究的细菌对阴极射线的敏感性差异可以用纯粹的物理大小因素来解释。
只有在铺展时细胞不聚集且在照射前不允许细胞繁殖的情况下，才能获得有关致死率的有意义的结论。这两个预防措施似乎在过去用 X 射线和其他形式的辐射进行的实验中很少被满足。

Laboratories and the Hospital of The Rockefeller Institute for Medical Research.

J Exp Med. 1930 May 31;51(6):921-32. doi: 10.1084/jem.51.6.921.

For the two motile bacilli, B. coli and B. aertryke, the absorption of a single 155 K.V. electron is sufficient to cause death. Furthermore, all, or nearly all, the electrons absorbed are lethal. The same is undoubtedly true of Staphylococcus aureus. In addition to providing a quantitative picture of the interaction of bacteria and cathode rays, these results suggest that radiation of the energy content used in our experiments is not suitable for altering the inheritable characteristics of bacteria. 2. The differences in sensitivity to cathode rays shown by the bacteria studied can be explained by the purely physical factor of size. 3. Counts giving significant conclusions concerning killing rates can be obtained only if there is no clumping of the cells when spread and only if the cells are not allowed to multiply before irradiation. Both these precautions seem rarely to have been met in the experiments that have in the past been made with X-rays and other forms of radiation.

对于两种能动杆菌，大肠杆菌和产气荚膜梭菌，吸收一个 155 千伏的电子就足以导致死亡。此外，所有或几乎所有吸收的电子都是致命的。金黄色葡萄球菌无疑也是如此。除了提供细菌与阴极射线相互作用的定量描述外，这些结果还表明，我们实验中使用的能量含量的辐射不适合改变细菌的可遗传性特征。
研究的细菌对阴极射线的敏感性差异可以用纯粹的物理大小因素来解释。
只有在铺展时细胞不聚集且在照射前不允许细胞繁殖的情况下，才能获得有关致死率的有意义的结论。这两个预防措施似乎在过去用 X 射线和其他形式的辐射进行的实验中很少被满足。