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Science 13 June 1997:
Vol. 276. no. 5319, pp. 1629 - 1632
DOI: 10.1126/science.276.5319.1629
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Letters

This Week's Letters

Hard questions

Convergent evolution at the molecular level is said to be one source of some "misleading phylogenetic analyses." Researchers discuss the "sanctuary problem," in which HIV persists in the brain even after it has been eradicated in other organs [yellow indicates concentration of HIV RNA in lymph nodes before (upper) and after (lower) treatment]. The challenge of designing studies to "test" the efficacy of prayer is reconsidered. And the relation between "economic consumption" and "environmental quality," and how these might be defined, is addressed.

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Volume 276, Number 5319, Issue of 13 June 1997 pp. 1629-1632.
©1997 by The American Association for the Advancement of Science.

Letters in This Issue

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[Letter] "Misleading" Molecules?
David P. Mindell
[Letters] Treating AIDS Dementia
Stuart A. Lipton
Winston Cavert and Ashley T. Haase
[Letters] Testing the Power of Prayer
Brian M. Cox
Thomas J. Crowley
James Kling
[Letters] Consumption and Sustainable Development
Paul C. Stern and Thomas Dietz
Robert Alcock
[Letter] Metabolic Rates
Charles C. Peterson
[Letter] Corrections and Clarifications




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