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Google Scholar searches many academic journals with this one form:

find articles with
all of the words
the exact phrase
at least one of the words
without the words
where my words occur

find articles written by e.g., PJ Hayes or McCarthy
published in e.g., J Biol Chem or Nature
published between and e.g., 1996

  search tips - about Scholar


Science.gov searches over 36 databases and 1,850 selected websites, offering 200 million pages of authoritative U.S. government science information, including research and development results.

find this: advanced search


Science Search: Scirus is a science search engine from Elsevier. The results are highly selective, and may include non-text files like PDF. Scirus currently indexes over 60 million science related pages from the Web and membership sources such as ScienceDirect, MEDLINE on BioMedNet, Beilstein on ChemWeb and Neuroscion. Search Help   Advanced Search

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Earth and Planetary Sciences
Engineering, Energy and Technology
Chemistry and Chemical Engineering
Agricultural and Biological Sciences
Environmental Sciences
Social and Behavioral Sciences
Economics, Business and Management



Science Preprint Search: The arXiv.org preprint server, now run by the Cornell University Library, began at the Los Alamos National Laboratories. arXiv is a searchable archive of over 100,000 papers in the fields of physics (including astronomy), mathematics, non-linear science, computer science, and quantitative biology. You can read abstracts online, or download full text files.


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Scientific Document and Citation Search: CiteSeerx (originally ResearchIndex, then CiteSeer), hosted by Penn State's School of Information Sciences and Technology, "is a free public service that aims to improve communication and progress in science". Over 1,164,939 articles and over 22 million citations are included in the index. The system provides information on most cited articles, citations and authors.

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Scitopia searches the entire electronic libraries of numerous scientific societies plus European, Japanese, and US patent databases. More than three and a half million documents, including peer-reviewed journal content and technical conference papers, spanning 350 years of science and technology can be searched through the site.

find this:   advanced search


The US Department of Energy Office of Scientific & Technical Information Science Accelerator searches research and development results, project descriptions, accomplishments, e-prints, conference proceedings, patent records, technical reports and more. The Science Accelerator has replaced the discontinued OSTI search, which had replaced the discontinued PubSCIENCE.

find this: advanced

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Federal research summaries: Federal R&D Project Summaries

Other DOE Science Resources:
Scientific & technical software: Energy Science & Tech Software Center
Virtual library of science and technology databases: EnergyFiles
 
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TIME Magazine, September 13, 1948, p. 56:

SCIENCE: Don't Be a Dodo
    ...Of the 58,000 chemists who might have come, 2,321 crystallized in Washington last week at a meeting of the American Chemical Society...
    Most of the papers were interesting only to tiny groups of specialists. Chemistry has divided and subdivided until a cellulose chemist can hardly tell what a fuel chemist is talking about...

    A few days later, when the Chemical Society held a second meeting at St. Louis, its president, Dr. Charles Allen Thomas of Monsanto Chemical Co., gave his flock a timely talking to. He did not come right out and call the chemists dodos, but he warned them that overspecialization (the nemesis of the dodo) might make their science stagnate.
    "The danger..." said Dr. Thomas, "is in our specialized approach to the study of science. We have transferred the techniques employed in the mass production of goods to the study of... fundamental phenomena... We have failed to see the great difference between physical and intellectual production...

    Treadmill. Dr. Thomas admits that some specialization is necessary, but he thinks it is seductively easy to develop too much of it. Many animal species specialized to live in the seas, or the forests, or the air. "Each was a specialized animal adjusted to a specific environment. And when the environment changed, other species became predominant..."

    "The appearance of man... with his generalized form, and his ability to adapt himself to changing environment... was flexible enough to survive a variety of changes... specialized species either perished... or stagnated in static societies... The point I want to make is that biological specialization can eventually lead to... destruction or a treadmill of repetition...
    "Is the specialist, in the confines of his narrow discipline, failing to accept the challenge of unfamiliar territory, to risk the uncertainties and the tensions of coupling and interconnecting the many aspects of science?... If this is so, he is no longer a true scientist."
 

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