NetWatch

Science  16 Jun 2006:
Vol. 312, Issue 5780, pp. 1577
  1. IMAGES: Documenting the Big Melt

    For dramatic illustrations of how much Alaska's glaciers have shrunk in the last century, take a gander at this new gallery from the National Snow and Ice Data Center in Boulder, Colorado. Displayed are 14 pairs of photos taken from the same locations as much as 104 years apart. For example, Muir Glacier dominated a 1941 shot of what is now Glacier Bay National Park. By 2004, the ice had dwindled into the background. Curators plan to post more photos.

    nsidc.org/data/glacier_photo/special_collection.html

  2. DATABASE: Building Blood Cells

    Determining which genes coax immature red blood cells to grow up could help researchers devise new treatments for anemia and counter the side effects of chemotherapy. To find out which genes switch on as red blood cells mature, visit the Hembase database from the National Institute of Diabetes and Digestive and Kidney Diseases. Scientists there combined their measurements of messenger RNA levels with results from previous studies on gene expression in blood cell precursors. You can track down active genes by chromosome location or by whether they take part in tasks such as defining the blood group.

    hembase.niddk.nih.gov

  3. TOOLS: That Shouldn't Be Turning Blue

    Chemical rections don't always turn out, spawning unanticipated products or fizzling altogether. Although these flops rarely end up in papers, they can be instructive for other researchers attempting to duplicate a synthesis. That's the rationale behind the Chemistry Unpublished Papers Forum from the University of Pisa in Italy. The new site lets chemists report reactions that unexpectedly faltered or that released surprising products. After completing the free registration, visitors can post their lab woes or join discussions of more than a dozen troublesome reactions, such as copper nanoparticles' failure as catalysts. In the “Fake Chemistry” section, users can identify papers that they think show suspiciously high yields.

    http://www.chemunpub.it/

  4. RESOURCES: Fire Lookout

    Brush and forest fires transform habitats and pour pollutants and carbon dioxide into the air. Researchers studying fire's impact on atmospheric chemistry, land use, or related subjects can pinpoint burns at the World Fire Atlas from the European Space Agency. Satellite images updated about every 6 hours and other data let visitors identify new hot spots and track existing ones. Free registration provides access to an archive of fire maps that date back to 1995. Included is a summary chart, for example, which shows the locations of 2005's blazes.

    dup.esrin.esa.int/ionia/wfa/index.asp

  5. DATABASE: Fish Fry

    Young fish such as Atlantic salmon (Salmo salar) often frequent different habitats than do their parents and swallow different foods. Researchers, fisheries managers, and others can reel in information about the early stages of fish life at LarvalBase, a companion to the ichthyology compendium FishBase (NetWatch, 24 December 1999, p. 2423). Supervised by Bernd Ueberschaer of the Leibniz Institute of Marine Science in Kiel, Germany, LarvalBase houses data on juvenile fishes compiled from papers, books, reports, and unpublished “gray” literature. You'll find listings for nearly 2200 species that are important for fisheries and aquaculture. The information includes egg hatching times, charts that compare the anatomy of larval stages, roundups of larval diet, and rearing instructions for some well-studied species. You can also take a larva identification quiz.

    http://www.larvalbase.org/

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