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ICP-MS determination of background I-129 in seaweed samples around Fukushima Daiichi NPS. ICP-MS 测定福岛第一核电站周围海藻样本中的本底 I-129。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae163
Minseok Kim, Toshihiro Shibata, Takayuki Sasaki, Junichi Suzuki
{"title":"ICP-MS determination of background I-129 in seaweed samples around Fukushima Daiichi NPS.","authors":"Minseok Kim, Toshihiro Shibata, Takayuki Sasaki, Junichi Suzuki","doi":"10.1093/rpd/ncae163","DOIUrl":"https://doi.org/10.1093/rpd/ncae163","url":null,"abstract":"<p><p>TEPCO planned the release of Advanced Liquid Processing System (ALPS)-treated water, which is decontaminated stagnated water by ALPS, to the Pacific Ocean in 2023 after diluting it more than a hundred times in accordance with the policy of the Japan government. Since the low level of I-129 can remain in ALPS-treated water, the background I-129 concentration in seaweed samples around 1F NPS before the release of ALPS-treated water was recorded in this study. The iodine in seaweed samples was extracted via TMAH alkali-dissolution, and the I-129 concentration was measured by 8900 Triple Quadrupole ICP-MS. The resulting I-129 concentration was <5.4 × 10-2 Bq/kg-wet (sargassum) and <2.7 × 10-2 Bq/kg-wet (laminaria), respectively.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1850-1855"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Attempt to re-estimate organ doses of victims in non-homogeneous exposure accident by means of the state-of-the-art Mesh-type Reference Computational Phantom-a case study of an IR-192 source accident. 尝试通过最先进的网格型参考计算模型--IR-192 辐射源事故案例研究，重新估算非均质辐射事故中受害者的器官剂量。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae070
Munehiko Kowatari, Hiroshi Yoshitomi, Kotaro Tani, Yoshihiko Tanimura, Osamu Kurihara
{"title":"Attempt to re-estimate organ doses of victims in non-homogeneous exposure accident by means of the state-of-the-art Mesh-type Reference Computational Phantom-a case study of an IR-192 source accident.","authors":"Munehiko Kowatari, Hiroshi Yoshitomi, Kotaro Tani, Yoshihiko Tanimura, Osamu Kurihara","doi":"10.1093/rpd/ncae070","DOIUrl":"https://doi.org/10.1093/rpd/ncae070","url":null,"abstract":"<p><p>An attempt was made to estimate organ doses of a victim in a high-dose non-homogeneous exposure accident caused by a sealed 192Ir gamma-ray source. The Gilan accident was selected as a case study. Organ doses including testis, red bone marrow and so on were properly estimated by applying the Monte Carlo calculation with the state-of-the-art adult male Mesh type Reference Computational Phantom. By introducing a complicated exposure scenario, the dose distribution on the right chest of the victim in the Gilan accident could be reproduced to a certain extent.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1574-1579"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radiation adaptive response: the biophysical phenomenon and its theoretical description. 辐射适应反应：生物物理现象及其理论描述。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae053
Krzysztof W Fornalski, Łukasz Adamowski, Ernest Bugała, Rafał Jarmakiewicz, Julianna Krasowska, Łukasz Piotrowski
{"title":"Radiation adaptive response: the biophysical phenomenon and its theoretical description.","authors":"Krzysztof W Fornalski, Łukasz Adamowski, Ernest Bugała, Rafał Jarmakiewicz, Julianna Krasowska, Łukasz Piotrowski","doi":"10.1093/rpd/ncae053","DOIUrl":"https://doi.org/10.1093/rpd/ncae053","url":null,"abstract":"<p><p>The radiation adaptive response (or radioadaptation) effect is a biophysical and radiobiological phenomenon responsible for, e.g. the enhancement of repair processes, cell cycle and apoptosis regulation or enhancement of antioxidant production in cells/organisms irradiated by low doses and low dose-rates of ionising radiation. This phenomenon, however, is not always present, which creates many problems both for experimenters and theoreticians. Here we propose a comprehensive and complete theoretical model of radioadaptation grounded in mathematical concept of dose- and time-related probability function of the adaptive response appearance. This can be used in the context of two special cases of the adaptive response: the Raper-Yonezawa (priming dose) effect or constant low-dose-rate irradiation (e.g. for high natural background). This complete theoretical approach is supported by Monte Carlo simulations and real-experimental data used for model calibration and validation.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1585-1589"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Should the current radiation protection paradigm and its recommendations be modified to make them more fit to protect the public in future nuclear emergencies? 当前的辐射防护范例及其建议是否应加以修改，使其更适合在未来的核紧急情况下保护公众？
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae088
James Mc Laughlin
{"title":"Should the current radiation protection paradigm and its recommendations be modified to make them more fit to protect the public in future nuclear emergencies?","authors":"James Mc Laughlin","doi":"10.1093/rpd/ncae088","DOIUrl":"10.1093/rpd/ncae088","url":null,"abstract":"<p><p>The present radiation protection paradigm and its associated recommendations as developed by bodies such as the ICRP have performed very well over past decades both for those occupationally exposed to radiation and for the public in planned exposures. There is, however, growing evidence that the role played by this paradigm in the decision-making process to protect the public in nuclear emergencies in the past may have, unwittingly and unintentionally, caused more harm than good to some sections of the public. This seems to have been the case in the use of population evacuation as the principal protection response to the Chernobyl (1986) and Fukushima (2011) accidents. There is thus a need to develop improved guidelines or tools on how to apply radiation protection recommendations for the public compatible with the Principle of Justification in the event of any future major radiation emergencies. It can also be argued that the present radiation protection paradigm, with its emphasis primarily on the physical health detriments from radiation, should be more inclusive and needs to shift to a more holistic or total health approach than heretofore to include mental health effects associated with nuclear emergencies. For severe mental health effects, some of the consequences, such as suicide, can even be as or more severe than most physical detriments likely to be suffered by those affected.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1501-1506"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561566/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carbon accumulation model for simulating 14C radioactivity in Chinese yam grown from a seed bulbil. 模拟鳞茎种子生长的中国山药中 14C 放射性的碳积累模型。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae026
Takashi Tani, Ryuji Arai
{"title":"Carbon accumulation model for simulating 14C radioactivity in Chinese yam grown from a seed bulbil.","authors":"Takashi Tani, Ryuji Arai","doi":"10.1093/rpd/ncae026","DOIUrl":"https://doi.org/10.1093/rpd/ncae026","url":null,"abstract":"<p><p>Modeling carbon accumulation in crop plants is key to evaluating the transfer of atmospheric 14C into the edible parts of the plants growing near nuclear facilities. Chinese yam 'Nagaimo' (Dioscorea polystachya Turcz.) is a major crop cultivated near a spent nuclear fuel reprocessing plant in Rokkasho, Aomori, Japan. We developed a dynamic compartment model for assessing carbon and 14C accumulation in Chinese yam grown from a seed bulbil in the field. Light and temperature dependence of leaf photosynthesis and temperature dependence of respiration in leaves, stems and belowground parts (tuber and root) were incorporated into the model. Estimated amounts of carbon in the leaves, stems and belowground parts were good agreement with the measured data from the field. Simulation results of 14C accumulation using this model indicated that the accumulation of 14C in belowground parts at the harvest depends on the rate of photosynthesis on the day of exposure.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1752-1756"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of evaluation method for radiocesium availability in soil by biomimetic approach. 利用仿生学方法开发土壤中铯可用性的评估方法。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae129
Akira Takeda, Yusuke Unno, Mathew J B Swallow, Yasumi Yagasaki, Tetsuo Yasutaka, Naofumi Akata
{"title":"Development of evaluation method for radiocesium availability in soil by biomimetic approach.","authors":"Akira Takeda, Yusuke Unno, Mathew J B Swallow, Yasumi Yagasaki, Tetsuo Yasutaka, Naofumi Akata","doi":"10.1093/rpd/ncae129","DOIUrl":"https://doi.org/10.1093/rpd/ncae129","url":null,"abstract":"<p><p>Applicability of biomimetic approach with simulation of plant uptake for assessment of radiocesium availability in soil was investigated. The soil spiked with 137Cs tracer was contacted with wicking material and copper-substituted prussian blue (Cu-PB), which simulate transpirationally induced mass flow and concentration gradient-induced diffusion of radiocesiumin the soil, respectively. Comparison of the removed 137Cs to the wick and the wick + Cu-PB from the soil during the contact period of 12 weeks suggested that the diffusion process has larger contribution than the mass flow process in radiocesium dynamics in root zone. The change of the removed rate of 137Cs from the soil was reflected that its availability decreased with the time elapsing and with subjecting repeated wet-dry treatment. The results suggest that the biomimetic approach can be applicable to the realistic evaluation of the availability of radiocesium in soil.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1767-1771"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of short-term chemical changes in stable ruthenium added to soil by using X-ray absorption fine-structure analysis. 利用 X 射线吸收精细结构分析法研究添加到土壤中的稳定钌的短期化学变化。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae083
Yusuke Unno, Akira Takeda
{"title":"Investigation of short-term chemical changes in stable ruthenium added to soil by using X-ray absorption fine-structure analysis.","authors":"Yusuke Unno, Akira Takeda","doi":"10.1093/rpd/ncae083","DOIUrl":"https://doi.org/10.1093/rpd/ncae083","url":null,"abstract":"<p><p>Radioactive ruthenium may be accidentally released from spent nuclear fuel reprocessing plants to the surrounding environment. However, research on the chemical behavior of radioactive Ru in the environment is limited, and the complex chemical properties of this element complicate the application of extraction methods for the analyses of its chemical forms. To obtain basic information regarding the outcome of radioactive Ru in the environment, we investigated the changes in the form of stable Ru added to soil through X-ray absorption fine-structure (XAFS) analysis. This study uses ruthenium tetroxide (RuO4), ruthenium dioxide (RuO2), ruthenium nitrosyl nitrate (Ru(NO)(NO3)3) and ruthenium chloride (RuCl3) as test sources. These are added to ultrapure water, soil solution or fresh soil samples, which are analyzed using XAFS immediately or 5 days after Ru addition. The Ru K-edge X-ray absorption near edge structure spectra acquired immediately after Ru addition differed with respect to the source. The XAFS results suggest that RuO4 immediately changes to tetravalent form after deposition from air to soil. For RuCl3, the ionic structure in the vicinity of Ru is affected by the soil even if the valence does not change immediately. By contrast, RuO2 and Ru(NO)(NO3)3 are highly stable in soil. The results show that the chemical forms of RuO2 and Ru(NO)(NO3)3 added to the soil solution and soil are retained for 5 days, whereas those of RuCl3 and RuO4 are affected by the soil solution and soil within a short period. These results emphasize the need to focus on the chemical form of Ru deposits and the form change after Ru addition when investigating the environmental fate of radioactive Ru.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1744-1747"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Atmospheric concentrations of 7Be and 210Pb in weekly aerosols at Hirosaki, a heavy snowfall area in Japan. 日本大雪地区弘前每周气溶胶中 7Be 和 210Pb 的大气浓度。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae156
Khemruthai Kheamsiri, Oumar Bobbo Modibo, Bagus Sidik Waskito Hadi, Haruka Kuwata, Ryohei Yamada, Chutima Kranrod, Naofumi Akata
{"title":"Atmospheric concentrations of 7Be and 210Pb in weekly aerosols at Hirosaki, a heavy snowfall area in Japan.","authors":"Khemruthai Kheamsiri, Oumar Bobbo Modibo, Bagus Sidik Waskito Hadi, Haruka Kuwata, Ryohei Yamada, Chutima Kranrod, Naofumi Akata","doi":"10.1093/rpd/ncae156","DOIUrl":"https://doi.org/10.1093/rpd/ncae156","url":null,"abstract":"<p><p>To understand the regional properties of atmospheric 7Be and 210Pb concentrations at Hirosaki, aerosol samples were collected weekly for the investigation. Total suspended particles (TSP) concentration ranged from 0.14 to 1.19 mg m-3 with a mean value of 0.29 ± 0.08 mg m-3. The activity concentrations during the observation period have shown a similar trend between 7Be and 210Pb, comparable to reported studies. The activity concentrations of 7Be and 210Pb ranged from 0.46 to 4.94 mBq m-3 with an average of 2.22 mBq m-3 and from 0.26 to 1.29 mBq m-3 with an average of 0.64 mBq m-3, respectively. The relation between precipitation and radionuclide concentrations indicated that precipitation is an essential factor in the radionuclide removal process. The rainfall/snowfall had a significant impact on the deposition, and the process was greatly affected by the changes in the features of raindrops and snowflakes, such as intensity, shape, surface area, and falling speed.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1782-1786"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Absorption and translocation to fruit for cesium applied on apple tree leaf surface. 苹果树叶面对铯的吸收和向果实的转移。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae069
Hitoshi Kawabata, Masumi Yanai, Yuichi Takaku, Shun'ichi Hisamatsu
{"title":"Absorption and translocation to fruit for cesium applied on apple tree leaf surface.","authors":"Hitoshi Kawabata, Masumi Yanai, Yuichi Takaku, Shun'ichi Hisamatsu","doi":"10.1093/rpd/ncae069","DOIUrl":"https://doi.org/10.1093/rpd/ncae069","url":null,"abstract":"<p><p>We investigated the behavior of stable Cs+ ions contained in droplets applied directly on the leaf surfaces of plumleaf crab apple trees (2-3 years old Malus domestica 'Alps Otome') at three different fruit growing stages: before bearing fruit, early fruit development and late fruit development stages. Most of the Cs was rapidly transferred from the leaf surfaces into the applied leaves after application, and then gradually transferred to the fruit through the branches. The mean proportion of Cs transferred to fruit by harvest time ranged from 11 to 30% not directly depending on the fruit growing stages. Cs absorption from leaf surfaces was faster at early and late fruit development stages than before bearing fruit stage, and Cs transfer from leaf surfaces to the fruit was faster as the fruit growing stage progressed. To describe the transfer of Cs, we constructed a compartment model using the datasets of obtained for each fruit growing stage. However, it did not well reproduce the measured values, showing that further studies are necessary.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1777-1781"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142625926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An efficient and simple method for enriching metaphase cells for dicentric chromosome assay. 一种高效简便的方法，可富集转移相细胞进行双中心染色体检测。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae048
Ryo Nakayama, Thanh-Mai Tran, Donovan Anderson, Kai Takebayashi, Valerie Swee Ting Goh, Yohei Fujishima, Tomisato Miura
{"title":"An efficient and simple method for enriching metaphase cells for dicentric chromosome assay.","authors":"Ryo Nakayama, Thanh-Mai Tran, Donovan Anderson, Kai Takebayashi, Valerie Swee Ting Goh, Yohei Fujishima, Tomisato Miura","doi":"10.1093/rpd/ncae048","DOIUrl":"https://doi.org/10.1093/rpd/ncae048","url":null,"abstract":"<p><p>As compared to peripheral blood mononuclear cell (PBMC) culture, a lower mitotic index (MI) is seen in whole blood (WB) culture, but WB can be directly used for culture in dicentric chromosome assay (DCA). The purpose of this study is to develop a simple protocol for metaphase enrichment to improve the metaphase frequency of WB culture. Fixed cells were obtained after performing WB and PBMC cultures for DCA after conventional fixation. An additional low-speed centrifugation of 200 × g for 1 min was performed, separating the fixed cells of WB culture into a pellet and a supernatant fraction. The additional low-speed centrifugation enriched metaphase frequency and provided an MI comparable to the PBMC culture in the pellet fraction. Our study suggests that it is possible to increase the number of metaphase cells on slides using the slow centrifugation method, which could contribute to the efficiency of chromosome aberration analysis in biodosimetry.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1641-1646"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142625860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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