An on-line archive of articles published in The National Science Foundationís flagship magazine from 1970 to 1992.
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All Articles by George Alexander
Year (Volume & No.)TitleAbstractAuthorDownload
1978 (Volume 9, No. 2)Precambrian Life: Life in the PrecambrianMicrofossils revealing life's multibillion-year climb have caused a decade of turmoil in a once-placid scientific discipline.George AlexanderPDF
1978 (Volume 9, No. 4)Computer Security: Computer SecurityNothing can be made perfectly secure. But codes and ciphers can be made so costly to break that nothing they could hide would be worth the expense.George AlexanderPDF
1979 (Volume 10, No. 1)Computer Complexity: Solving for the UnsolvableThe identification of problems that defy solution may mean settling for approximations but avoids computational wheel-spinning. Polynomial versus exponential growth.George AlexanderPDF
1979 (Volume 10, No. 3)Leaf Protein: The Richest Source of ProteinThere is more protein in green leaves than in any other source on earth. Extraction experiments are making progress.George AlexanderPDF
1979 (Volume 10, No. 5)Physical Oceanography -- Unifying Themes Special I: Ocean Circulation: A Stirring TaleRecent ability to observe `weather` in the world's oceans is enabling physical oceanographers to match the real world to the simple formulas they have long known. Filling in the unknowns. The instrument arsenal.George AlexanderPDF
1981 (Volume 12, No. 3)Monopoles: Magnetic MonopoleThe notion of a magnet with only one pole is difficult to imagine, but physicists say it ought to exist.George AlexanderPDF
1982 (Volume 13, No. 3)Photorespiration -- Plant Sciences Special: the ExhaustAfter photosynthesis, plants undergo a chain of chemical events that put energy to work. Some of the processes may leak energy but not everybody agrees on the need for plugs.George AlexanderPDF
1983 (Volume 14, No. 3)Approximations: Resurrecting the IgnorabimusWhen problems defy solution, mathematicians can settle for `almost`. Ways to do that are coming into use.George AlexanderPDF
1984 (Volume 15, No. 1)Semiconductors -- Computer Research Special: SSI/MSI/LSI/VLSI/ULSIChip evolution, with silicon the mainstay, appears to be the foreseeable future.George AlexanderPDF


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