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  • Scientific Imaging: To Sharpen or Obscure?

    Monday, October 01, 2012
    Technical Article
    Jerry Sedgewick
    In the world of scientific imaging, the matter of whether or not to sharpen an image can pose an ethical question: Does sharpening change the essential nature of the image? read more

  • Product Intelligence: Laminar Flow Hoods and Biological Safety Cabinets

    Monday, July 16, 2012
    Technical Article
    Caitlin Smith
    This article explains the concept of laminar flow hoods, which include laminar flow clean benches and biosafety, or biological safety, cabinets. The prospective purchaser of a laminar flow hood will ... read more

  • Lead in Vinegar: Determination and Possible Sources

    Thursday, February 01, 2007
    Application Note
    Kuria Ndung’u Sharon Hibdon A. Russell Flegal
    Exposure to contaminant lead remains a public concern because of its pervasiveness in the environment and increasing evidence of its sublethal toxicities at exposure levels lower than previously ... read more
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