Science  22 Dec 2000:
Vol. 290, Issue 5500, pp. 2207

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  1. IMAGES: On the Brain

    Studying neuroscience often means hours of peering at grainy, gray brain slices. Bringing some relief to sore eyes is this 3D reconstruction of a human brain, showing structures such as the caudate (orange) and thalamus (purple). It was created by the Laboratory of Neuro Imaging ((LONI)) at the University of California, Los Angeles, whose Web site offers a host of resources for teaching and research. For professors seeking visuals, there are dozens of sample images ranging from the brain of an Alzheimer's patient to a computer rendering of retinal cones, “all made from original data,” says LONI director Arthur W. Toga. Another nice teaching feature, a monkey brain atlas, includes movies of rotating brain structures. For specialists, the site offers the LONI Resource, which has software for using a database of MRI scans from more than 7000 subjects, and the new Mouse Brain Atlas—a tool for mapping the expression of genes that shape the brain.

  2. RESOURCES: Social Survival

    The notion that Darwinian forces may drive the way organizations operate and how societies evolve has become a hot research area. Consider, for instance, the 1997 launch of an online journal on “memetics,” or how imitation shapes behavior, and a recent study suggesting that stepmothers are stingy with food (Science, 8 December, p. 1887). A modest but growing site called Evolutionary Theories in the Social Sciences*aims to bring this field together with book reviews, journal links, a forum, and conference updates. The site is run by a professor of management at Northwestern University in Evanston, Illinois.

  3. FIELD TRIPS: Teotihuacan or Bust

    Long before Buckingham Palace and Trump Tower, the Mesoamerican city of Teotihuacan was building to impress. Tour this ancient site's spectacular pyramids and read about ongoing excavations at the Teotihuacan Home Page. Archaeologists from Arizona State University in Tempe, Aichi Provincial University in Japan, and the Mexican National Institute of Anthropology and History dig up features for specialists and the curious alike.

    Located about 40 kilometers from modern Mexico City, Teotihuacan was a regional power and economic center for more than 500 years before burning in the 7th century A.D. Maps orient you to the city's layout, and panoramic videos look along the vast Avenue of the Dead or set you atop the 63-meter-high Sun Pyramid.

    To delve deeper, check out photo-packed, detailed reports of graves found beneath the Feathered Serpent Pyramid, an important ceremonial monument adorned with intricate carvings. Over the past 20 years, archaeologists have disinterred nearly 140 skeletons and a wealth of grave goods, from obsidian figurines to greenstone nose pendants. Updates cover recent discoveries, such as different kinds of tombs found under the Pyramid of the Moon that may mark a shift in the culture.

  4. EDUCATION: Popular Physics

    Wondering why the sky is blue, or how lasers can cool atoms to absolute zero? Find out at PhysicsCentral, a new educational site from the American Physical Society (APS). Aimed at the high school level and up, the magazine-style site combines features written by its writers and articles reprinted from APS and elsewhere. There are brief reviews of topics such as nanotechnology and laser cooling, miniprofiles of scientists, links to the latest physics news, a “how things work” column, Web site reviews, and more. Find out how pressure waves recorded on audio CDs convey a singer's timbre and pitch, or read a physicist's scribblings on relativity in everyday life.

  5. Science Online

    In keeping with genomics as Breakthrough of the Year (see p. 2220), Science Online is launching a new Web feature: The Science Functional Genomics Web site. It offers links to breaking news in genomics and biotech (from Science and other sources), pointers to classic and new papers relevant to the postgenomic era, lists of Web resources, and a special section on the biotech business. Check it out at