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Nature 442, 858 (24 August 2006) | doi:10.1038/442858b; Published online 23 August 2006
Open Innovation Challenges
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Methods to Analyze Consumer Emotions
The Seeker is looking for methods to analyze consumer emotions. This Challenge requires only a writ...
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Direct Molecular Detection of Proteins and Nucleic Acids
This Challenge is looking for novel approaches to protein and nucleic acid detection. This is an Id...
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Early embryos can yield stem cells... and survive
Helen Pearson
A single cell can be teased from a human embryo and used to produce stem cells while leaving the embryo intact. The process, published online in Nature this week, could enable stem-cell lines to be generated without the controversial destruction of human embryos — but some ethical objections remain.
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