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Medical study: Physical actions limited by brain

A new study suggests activities combining movement and force tax our brains to capacity, countering a long-held belief that difficulty with dexterous tasks results from the limits of the muscles themselves.



Measuring absolute molar mass and physical size of polymers

As the properties of a polymer can depend greatly on its size, there has always been a need to be able to measure it, both in terms of molar mass and physical size. The earliest polymers studied were materials such as elastomers and, later, synthetic polymers like polyethylenes or polypropylenes. The range of samples studied has since increased enormously with the realisation that many biological functions are also controlled by molar mass, size and shape.



Life sciences trigger developments in physical measurement techniques

In 2000 we are turning from the century of physics to the century of biology. Transgenetic food, genetic diagnostics and pharmaceuticals in medicine ­ biology and biochemistry weekly confront us with new findings giving rise to new opportunities. By Dr Heidrun Tippe.



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