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Vital Data

The Human Genome Project is producing a plethora of information that will illuminate our hidden susceptibilities to disease. The effort could transform medical science. But new dangers are arriving, too

By Tim Beardsley

Urban Planning in Curitiba

A Brazilian city challenges conventional wisdom and relies on low technology to improve the quality of urban life

By Jonas Rabinovitch and Josef Leitman

The Art and Science of Photoreconnaissance

In the 1950s and 1960s, photointerpreters devised ways of extracting valuable information from recondite images. Oftentimes, their work profoundly affected international relations

By Dino A. Brugioni

The African AIDS Epidemic

In parts of sub-Saharan Africa, nearly 25 percent of the population is HIV-positive as a result of heterosexual transmission of the virus. Could lack of circumcision make men in this region particularly susceptible?

By John C. Caldwell and Pat Caldwell

Caribbean Mangrove Swamps

Despite their ubiquity and prominent position between land and sea, these tropical ecosystems still hold countless surprises for researchers

By Klaus Rtzler and Ilka C. Feller

Budding Vesicles in Living Cells

A transatlantic collaboration has uncovered the machinery responsible for forming the tiny but essential containers, or vesicles, that store proteins and shuttle them to and fro in cells

By James E. Rothman and Lelio Orci

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