We demonstrate a fiber-optical version of a stable three-dimensional light-force trap, which we have used to hold and manipulate small dielectric spheres and living yeast. We show that the trap can be constructed by use of infrared diode lasers with fiber pigtails, without any external optics.

A federal effort is under way to improve the nation's ability to manage, understand, and act upon the 1.2 zettabytes (10 21 ) of electronic data generated each year.

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A new report from the National Academies says that improving introductory courses is one of many steps needed to increase the number of students obtaining degrees in the fields of science, technology, engineering, and mathematics and, in particular, the percentage of minorities in the scientific and engineering workforce.

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