 Dr James Logan, Rothamstead Research May 2008
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 Dr Tony Hooper, Rothamstead Research May 2008
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 Dr Andrew Salisbury, Royal Horticultural Society May 2008
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 Dr Tim Wreggitt, Royal College of Pathologists May 2008
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 Ian Mercer, Gemological Association of Great Britain April 2008
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 Philip Martineau, Diamond Trading Company April 2008
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 Dr Karl Kruszelnicki April 2008
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 Elaine Ball, Baxi group April 2008
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 Melinda Campbell, Science Museum & Jacob Tompkins, Waterwise April 2008
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 Asif Din, Zedfactory April 2008
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 Professor Terry Sloan April 2008
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 Professor Rita Colwell, University of Maryland and John Hopkins University March 2008
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 Dr Keith Sockman, University of North Carolina, Chapel Hill March 2008
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 Mark Peplow, Chemistry World February 2008
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 Dr Robinson Fulweiler, Louisiana State University February 2008
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 John Pygott, Environment Agency February 2008
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 Chris Durdin, RSPB February 2008
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 Steve Yanoviak, University of Arkansas at Little Rock January 2008
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 Dr Margaret Leinen, Climos & Dr Steve Vivian, CEFAS January 2008
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 Professor Peter Styles, University of Keele January 2008
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