Better red than dead

Article Abstract:

The Lawrence Berkeley National Laboratory has developed a food sampling procedure that helps detect toxic strains of E. coli in processed foods. By placing the lipid polymer polydiacetylene on plastic strips, a sensitive colorimetric test can be adapted to identify which strain contaminates a food sample.

Product quality, Testing, Escherichia coli, Food contamination

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Mussel mayhem, continued

Article Abstract:

Billions of zebra mussels have settled in Lake Erie and in surrounding waters, greatly altering their ecosystems. While some of the changes has been good, such as plant comebacks and less pollution, there are concerns about contamination of the food chain.

Environmental aspects, Great Lakes (North America), Zebra mussels, Zebra mussel, Lake Erie, Mussels, Fresh-water, Freshwater mussels

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Bracing for the big one

Article Abstract:

The 1995 Kobe and 1994 Northridge earthquakes showed that the design of most buildings constructed prior to 1980 cannot cope with seismic tremors. There is a need to retrofit these buildings but the high cost involved makes such an undertaking difficult.

Evaluation, Design and construction, Buildings, Earthquake engineering, Earthquake resistant design

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