网站简介：Tracking progress to the future especially advanced nanotechnology, nuclear and energy technology, quantum computers, life extension, space technology and AI.
网站简介：Compiles economic, development, and environment statistics from international sources, and provides resources on statistical and data collection methods.
网站简介：information on the subjects of defence, geopolitics, transport and police.
网站简介：A non-profit organization dedicated to the preservation of heirloom vegetables, flowers and fruits. Membership information, online catalog.
网站简介：Information for economists provided by the American Economic Association. Includes electronic editions of the American Economic Review, the Journal of Economic Literature and the Journal of Economic Perspectives as well as the internet guide Resources for Economists on the Internet (RFE).
网站简介：A non-profit organization bringing clean, safe drinking water to people in developing nations. Describes the issue, their projects, how to donate, and upcoming events.
网站简介：National Science Teachers Association, headquartered in Arlington.
网站简介：Affiliated with the Department of English at UVA.
网站简介：Current articles and reports regarding these academies' work. The National Academies (the National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine, and the National Research Council) serve as advisors to the U.S. in scientific, engineering and medical matters.
网站简介：Departments, admissions, student services, administrative services, organizations and committees, programs. Located in Santa Rosa, CA.
网站简介：Focuses its efforts on 20 major programs implemented by the county field faculty and supported by university-based specialists.
网站简介：APL is a not-for-profit research and development organization dedicated to solving a wide range of complex problems that present critical challenges to the nation.
网站简介：Has tutorials and problem sets for learning biochemistry, cell, developmental, human, and molecular biology, Mendelian genetics, and immunology.
网站简介：A service for finding and downloading the latest research results in economics. It contains a collection of on-line working papers, journal articles and software.
网站简介：The peer-reviewed research publication of the American Association of Immunologists. Features both clinical and basic immunologic research. Archive containing tables of contents, abstracts and full articles from 1998-2002 available to all.
网站简介：Applied-science national security laboratory operated by Lawrence Livermore National Security, LLC, for the Department of Energy's National Nuclear Security Administration. Located in Livermore, California.
网站简介：Includes a searchable literature index, named reactions and protecting groups as well as a chemical database.
网站简介：Independent watchdog established to protect the public's health and consumer interests in relation to food safety. Provides information on a variety of food-related issues including health, safety, hygiene and nutrition.
网站简介：Provides a complete conjugation table of Italian verbs.
网站简介：Provides information regarding the temperature, precipitation, and sunshine for more than 5000 cities and locations in the United States. Includes climate charts and averages.
网站简介：Contact information, board members, license database, disciplinary and complaint information.
网站简介：Distributors of antibody and siRNA products with over 30,000 products available for worldwide shipping. Search for antibodies or siRNAs using the Mouse Chromosome Database or the Human Chromosome Database.
网站简介：Analyzer and charger maker offers web version of book about batteries and how to charge them.
网站简介：Activities, news, product recalls and other consumer information, publications, educational programs and details of the organization.
网站简介：A free online materials information resource with properties data on over 54,000 materials. Search for materials by name or properties. Database includes comprehensive coverage of thermoplastic and thermoset polymers, aluminum, cobalt, copper, lead, magne