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韩春雨《自然--生物技术》撤稿追踪

2017-08-03 21:35:35   新华网

新华社北京8月3日电 题:韩春雨《自然--生物技术》撤稿追踪

新华社“新华视点”记者

在身陷学术争论,被质疑是否具有可重复性一年后,英国《自然--生物技术》发表了韩春雨团队的撤稿声明:“由于科研界一直无法根据我们论文提供的实验方案重复出论文图4所示的关键结果,我们决定撤回这项研究。”韩春雨称,撤稿是出于“科研记录的完整性”的主动行为,并表示“实验还需继续论证和完善”。

“新华视点”记者就公众关心的相关问题采访了权威专家。

  焦点一:撤稿是否等同于学术造假?

按国际惯例,研究团队发表的文章结论必须是可重复的。“主动撤稿表明韩春雨团队也意识到他们文章有不能重复的问题。”美国梅奥医学中心教授楼振昆说,“能够主动撤稿需要勇气,很多重复不出的文章作者也不愿主动撤稿。实验不能重复可能有多种原因,现在还没有证据可以证明韩春雨团队是造假。一般被动撤稿是查出有造假行为。希望韩春雨团队能够公布实验原始资料和数据,研究人员可以根据实验记录一步步重复,看是否能够重复出来。”

浙江大学教授王立铭认为,撤稿是“重要一步”,让我对科学共同体有了些信心。他同时也期待下一步动作。“现在没有解决的问题是,是否存在学术不端。到底是造假还是单纯的试验错误。”

据了解,学者对于已发表的论文,在多种情况下都可以主动撤稿。例如,认为论文的证据不充分,试验数据还不能得出文中结论,或是认为数据处理不妥,暂不适合发表论文等。

一些受访者认为,撤稿不等于造假。但也有不少研究人员感到“疑惑”:如果数据真实可靠,面对如此压力,韩春雨团队为何始终都不愿公布实验记录?

中国科学院院士邵峰评论认为,韩春雨的技术在去年遭到大面积质疑后,一些业内人士其实心里都已下了结论--这是一个不可靠的研究结果。“我自己后来也仔细研究过相关知识和文献,发现NgAgo理论上就不可能具有和Cas9相同的基因编辑功能。”

几位生物学领域的资深科学家表示:“我们几位同行讨论过也认真分析过韩春雨的论文,并且在2016年7月份意识到,这应该是学术造假。”“通俗点说,就是说这个蛋白没有足够的能量去打开DNA进行剪切”“仔细阅读论文就能够知道,实验不可能成功”。

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