Columbia Chemistry Professor Is Retracting 4 More Papers
今年三月的时候这教授撤回几篇文章的时候俺们就很震惊，结果今天NYTimes又爆出下面的消息，这料太猛了。
不管怎样，科研工作容不得半点造假。
Come from NYTimes
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By KENNETH CHANG
Published: June 15, 2006
A chemistry professor at Columbia University who in March retracted two papers and part of a third published in a leading journal is now retracting four additional scientific papers.
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Related
Ex-Columbia Student Says Disputed Chemistry Research Is Sound (March 18, 2006)
Professor at Columbia Retracts Papers Over Research Questions (March 16, 2006)
The retractions came after the experimental findings of the papers could not be reproduced by other researchers in the same laboratory.
The professor, Dalibor Sames, was the senior author of all the papers in question. Another author, Bengu Sezen, a former graduate student of Dr. Sames who received her doctorate last year, performed most of the experiments described in the papers.
In a telephone interview, Dr. Sames said efforts to reproduce the original findings had failed. "We have re-examined Ms. Sezen's work extremely carefully," he said. "Each experiment was performed by at least two independent, fully qualified scientists."
Dr. Sames added: "I would not do anything like this lightly. To retract a paper is very difficult for any scientist."
Dr. Sezen, now a doctoral student in another field at the University of Heidelberg in Germany, has vigorously disputed the retractions. She said she had not been told that the papers were being withdrawn, and she questioned whether other members of Dr. Sames's group had even tried to repeat the experiments.
The retraction of one paper, published in the journal Organic Letters in 2003, appears today. The three others were published in The Journal of the American Chemical Society in 2002 and 2003, and the retractions will appear later this month.
Columbia has opened an inquiry into why the experiments were not reproducible.
The research in question lies in an esoteric field known as carbon-hydrogen bond activation. But the ability to manipulate precisely the bonds between hydrogen and carbon atoms in molecules could lead to important practical applications. For example, scientists might one day be able to change simple hydrocarbon molecules like methane into more complex ones like those in plastic and pharmaceuticals.
In e-mail messages yesterday, Dr. Sezen said that other members of Dr. Sames's group had not followed detailed procedures for the experiments and that the catalysts needed to shepherd the chemical reactions had not been made.
