Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.
Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.
J Am Coll Radiol. 2019 Jan;16(1):108-114. doi: 10.1016/j.jacr.2018.07.005. Epub 2018 Aug 23.
The world's largest scholarly literature pirate website, Sci-Hub, permits readers to bypass journal paywalls, thus facilitating no-cost copyright-infringing article downloads. We studied download characteristics of internationally pirated radiology journal articles.
All download request events between September 2015 and February 2016 were retrieved from Sci-Hub's public server logs. Focusing on high-impact factor radiology journals, we targeted uniquely identifiable diagnostic imaging and radiation oncology journals with a 2015 Thompson Reuters impact factor of ≥2. Pirated article download characteristics were assessed at the individual article, journal, and geographic level.
Of all 27,819,965 pirated article downloads, 105,075 (0.4%) were from 49 radiology journals with high impact factor. Total monthly radiology downloads ranged from 6,715 to 24,449. Downloads were most frequent for papers from Radiology (10,357 of 105,075; 9.9%), NeuroImage (10,121; 9.6%), and the International Journal of Radiation Oncology Biology (8,025; 7.6%). The most downloaded articles were published in European Radiology, RadioGraphics, and NeuroImage. By country, download requests were most frequent from China (17,975 of 105,075; 17.1%), India (7,969; 7.6%), and Iran (7,327; 7.0%), but on a per capita basis, were most common in Portugal (210.8 per 1,000,000 population), Chile (135.4), and Tunisia (113.8). Only 4,450 (4.2%) of download requests were from the United States.
Copyright-infringing downloading of pirated radiology journal articles occurs frequently across the world and impacts nearly all top impact-factor journals. New publisher pricing and business models, akin to those for digital music, may be necessary to disincentivize pirating and ensure journal financial sustainability.
世界上最大的学术文献盗版网站 Sci-Hub 允许读者绕过期刊付费墙，从而实现免费的版权侵权文章下载。我们研究了国际盗版放射学期刊文章的下载特征。
从 Sci-Hub 的公共服务器日志中检索了 2015 年 9 月至 2016 年 2 月期间的所有下载请求事件。我们专注于具有 2015 年汤森路透影响因子≥2 的高影响力因子放射学期刊，目标是具有独特可识别诊断成像和放射肿瘤学期刊。在文章、期刊和地理层面评估了盗版文章的下载特征。
在所有 27819965 篇盗版文章下载中，有 105075 篇（0.4%）来自影响因子高的 49 种放射学期刊。每月的放射学下载量从 6715 到 24449 不等。下载最频繁的论文来自 Radiology（10357 篇）、NeuroImage（10121 篇）和 International Journal of Radiation Oncology Biology（8025 篇）。下载最多的文章发表在 European Radiology、RadioGraphics 和 NeuroImage。按国家/地区划分，下载请求最多的是中国（17975 篇）、印度（7969 篇）和伊朗（7327 篇），但按人均计算，葡萄牙（210.8 篇）、智利（135.4 篇）和突尼斯（113.8 篇）的下载请求最为普遍。只有 4450 篇（4.2%）的下载请求来自美国。
盗版放射学期刊文章的版权侵权下载在全球范围内经常发生，几乎影响到所有顶级影响因子期刊。类似于数字音乐的新出版商定价和商业模式可能是必要的，以抑制盗版行为并确保期刊的财务可持续性。
