Redefining the supercomputer

Article Abstract:

A government initiative is focusing on computer that perform a quadrillion computations per second, or petaflops, just as the first tetraflops computer is coming on-line at Sandia National Labs. SUch speed would necessitate a departure from conventional silicon technology. Three new processing concepts are described.

Innovations, Supercomputers

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The breast-screening brawl

Article Abstract:

A contentious meeting at the National Institutes of Health on whether women in their forties would benefit from regular mammograms failed to reach a consensus. Many radiologists favor screening but other researchers are skeptical about its value for this age group.

Health aspects, Evaluation, Conferences, meetings and seminars, Diagnosis, Women, Beliefs, opinions and attitudes, Breast cancer, United States. National Institutes of Health, Women's health, Mammography, Radiologists, Kopans, Daniel

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Photonic crystal made to work at an optical wavelength

Article Abstract:

Researchers have used x-ray lithography to develop the first photonic crystal that can work at an optical wavelength. The advance will help to end the bottleneck in getting information into and out of fiber-optic telecommunications cables.

Research, Fiber optics, Optical communications technologies, Photonics, Optical communications

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