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 Today's
computer chips contain millions of elements with features that are
engraved using masks and visible light. To pack in more elements,
smaller features are needed. What's the best technique for defining
features smaller than a wavelength of visible light? Ion beam
technology and a dot-matrix
lithography technique that could eliminate masks may offer the
answer.
 It is well
established that both genetics and diet can strongly influence blood
cholesterol patterns and heart disease risk. Now it seems that the
interaction between these two factors can have surprising effects.
In the case of some individuals, researchers have discovered that an
extreme low-fat/high-carbohydrate diet can produce metabolic reactions
that can cause a change in the cholesterol profile of their blood and
actually increase
the risk of heart disease.
Oxygen is big business. Every year, oxygen worth billions of dollars
is sold to hospitals, welding shops and other light industries, usually
delivered by truck. For every pound of oxygen delivered, five pounds
of steel must be moved. Lab researchers are working with industry to
develop a quiet, self-contained electrochemical unit
that can produce pure pressurized oxygen onsite.
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