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<jats:p>In science news around the world this week, officials with Tokyo Electric Power Co. say it could take up to 9 months to end the threat of radioactive releases from the stricken reactors at Fukushima Daiichi, researchers have released new criteria for diagnosing Alzheimer's disease, some 30 ring-tailed lemurs are headed to a private island, deep-sea drilling is 50 years old, a promising HIV strategy has fallen short in trials in Africa, a Canadian safe-injection facility has been found to cut the death rate from overdoses, and the 2011 U.S. federal budget will create a key satellite data gap in 2017.</jats:p>

<jats:p> Follow the links below for a roundup of the week's top stories in science, or <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6028/402.1.full.pdf">download a PDF of the entire section</jats:ext-link> . <jats:list list-type="bullet"> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6028/402.2.summary">Around the World</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6028/findings.full">Findings</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6028/403.summary">Random Samples</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6028/404.1.summary">Newsmakers</jats:ext-link> </jats:p> </jats:list-item> </jats:list> </jats:p>

<jats:p>This week, researchers unveiled the fourth dimension with gigapixel time-lapse movies stitched together from ultrahigh-resolution panoramas assembled from multiple images. A 3-by-4.5-meter ceramic sculpture of a coral reef is being displayed in the marble foyer of the U.S. Department of Commerce in Washington, D.C., to promote marine conservation. And this week's numbers quantify new funds committed to the planned UK Centre for Medical Research and Innovation and the growth of scientific publication by China-based researchers.</jats:p>

<jats:p>This week's Newsmakers are Lewis R. Binford, champion of the use of the scientific method in archaeology, who died 11 April at the age of 79, and Patricia Ann Jacobs and David Page, winners of this year's March of Dimes Prize in Developmental Biology, which honors scientific research aimed at improving the health of babies.</jats:p>