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Links to useful sites for researching issues in maritime law are provided as well . Researchers estimate that blood stream infections , a subset of all hospital-acquired infecation , may be the eighth leading cause of death in the U.S. Study sites other research showing substantial reduction in infection with better hand washing compliance . At two sites full-time research assistants were appointed . This lesson , for grades 6-8 , teaches students the basic criteria and procedure for evaluating Web sites for research purposes . Where to zero in on a disease Let an association explain it to you Among the most reliable ( read : most conservative ) sites for researching an illness are pages maintained by major foundations and non-profits . The story sites recent research by Forrester and Quocirca that concludes that SaaS is no cheaper then packaged software in the long term . It may be explained that these two audiences visit museum Web sites for research purposes " ( Kravchyna and Hastings 2002 ) . Bogs are particularly valuable sites for researching Quaternary conditions . Jefferson Lab , as it is known , is one of the federal government 's main sites for researching the composition of atoms . This subject guide lists both restricted sites and web sites for researching International Affairs . Delate established two on-farm sites for research and demonstration to evaluate how three methods of pest management affected plant health and crop yields : a kaolin clay product applied bi-weekly from plant emergence until a month before harvest ; interplanting of buckwheat to supply food for a fly parasite of the squash bug ; and remay row cover , a gauze-like fabric used to prevent colonization by the pests . There are three sites for research , development , demonstration , testing and evaluation ( RDDT & E ) : Earth , LEO , and the lunar surface . These sites for research include San Francisco , Sacramento , Stockton , Napa , the Silicon Valley and Los Angeles .