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Infant Mortality in the U.S.

After many years of a steady drop in the infant mortality rate in the U.S. the rate of decline has abruptly slowed. The change coincides with cutbacks in programs for mothers and children...

By C. Arden Miller

The Moons of Uranus, Neptune and Pluto

When Voyager 2 flies by Uranus in January and by Neptune in 1989, it will send back closeup pictures of their icy moons. Ground-based studies of the outer solar system suggest what the probe might find...

By Dale P. Cruikshank and Robert Hamilton Brown

The Fundamental Physical Limits of Computation

What constraints govern the physical process of computing? Is a minimum amount of energy required, for example, per logic step? There seems to be no minimum, but some other questions are open...

By Charles H. Bennett and Rolf Landauer

The Evolution of Darwinism

Recent developments in molecular biology and new interpretations of the fossil record are gradually altering and adding to the synthetic theory, for 40 years the standard view of the process of evolution...

By Francisco J. Ayala and G. Ledyard Stebbins

The Chemosensory Recognition of Genetic Individuality

Genes regulating immunologic function impart to individual mice a characteristic scent. A mouse can thus discriminate genetic differences among its potential mates by smell alone

By Edward A. Boyse, Gary K. Beauchamp and Kunio Yamazaki

Minoan Palaces

At the center of Crete's rich Bronze Age culture was the palace, which had economic, political and religious functions. Studying those functions makes it posslble to reconstruct Minoan society...

By Peter M. Warren

Fossil Water under the Sinai-Negev Peninsula

By studying the water issuing from springs and wells scattered across the Sinai and the Negev deserts, hydrogeologists have identified a great aquifer formed during the last glacial age

By Arie Issar

Milkweeds and their Visitors

The insects and other animals that frequent milkweed form a model community for the study of interactions among species. The animals come to forage, but a few of them also serve the needs of the plant...

By Douglass H. Morse


  • 50 and 100 Years Ago: July 1985

  • Science and the Citizen, July 1985

  • Letters

    Letters to the Editors, July 1985

  • Recommended

    Books, July 1985

  • Amateur Scientist

    The Amateur Scientist, July 1985

  • Departments

    The Authors, July 1985

  • Computer Recreations, July 1985

  • Bibliography, July 1985

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