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"Gale OneFile: Science is where researchers can remain current with the latest scientific developments. More than 350 full-text, non-embargoed journals are covered; updated daily, this collection includes more than 1.6 million articles to satisfy almost every scientific inquiry."
"Gale In Context: Science is an engaging online experience for those seeking contextual information on hundreds of today's most significant science topics. The solution merges Gale's authoritative and continuously updated reference content with full-text magazines, academic journals, news articles, experiments, images, videos, audio files and links to vetted websites organized into a user-friendly portal experience."
"The National Science Digital Library provides high quality online educational resources for teaching and learning, with current emphasis on the sciences, technology, engineering, and mathematics (STEM) disciplinesboth formal and informal, institutional and individual, in local, state, national, and international educational settings."
PubChem is organized as three linked databases within the NCBI's Entrez information retrieval system. These are PubChem Substance, PubChem Compound, and PubChem BioAssay. PubChem also provides a fast chemical structure similarity search tool. More information about using each component database may be found using the links in the homepage.
"freely accessible research database focusing on the relationship between human beings and the environment, with well-researched but accessible information on topics ranging from global warming to recycling to alternate fuel sources and beyond."