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Lead isotope dating of marine sedimentary cores

Laboratories from 14 countries (with different levels of experience in radiometric measurement of radionuclides in environmental samples and in the application of the 210Pb dating method) participated in an interlaboratory ...

Study finds clues to aging in 'junk' DNA

For decades, greater than 60% of the human genome was believed to be "junk DNA" that served little or no purpose in the course of human development. Recent research by Colorado State University is challenging this notion ...

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