Portage District Library Quick Links

Online Resources

Welcome to the e-branch of the Portage District Library! Here you will find electronically accessible books, journals, magazines, newspapers, and directories, the majority of which you can access with your library card from home or anywhere.

Science and Technology Databases:

  • Computer DatabaseMEL Database

    Computer Database has over 2,687,481 articles from journals, trade magazines and popular computing magazines.

    Availability:

    Anywhere with a library card
  • New Book of Popular SciencePDL Databse

    This Grolier database, aimed at the K-12 age group, covers current topics in science and technology using nontechnical language. It includes scientific biographies, science projects, science news, and reference encyclopedias.

    Availability:

    Anywhere with a library card
  • The Astronomical Journal

    (AJ) was founded in 1849 by Benjamin A. Gould and was acquired by the AAS in 1941. The AJ publishes original astronomical research, with an emphasis on significant scientific results derived from observations, including descriptions of data capture, surveys, analysis techniques, and astrophysical interpretation. It takes a broad view of astronomy, extending from the solar system to observational cosmology with a tradition of papers discussing dynamical processes. Note: Other journals from the Institute of Physics are not available from this library.

    Availability:

    Only at the library
  • The Astrophysical Journal

    The Astrophysical Journal is the foremost research journal in the world devoted to recent developments, discoveries, and theories in astronomy and astrophysics. Many of the classic discoveries of the twentieth century have first been reported in the Journal. Note: Other journals from the Institute of Physics are not available from this library.

    Availability:

    Only at the library
  • The Astrophysical Journal Letters

    The Astrophysical Journal Letters is a peer-reviewed express scientific journal that allows astrophysicists to rapidly publish short notices of significant original research. The American Astronomical Society has chosen IOP Publishing to publish The Astrophysical Journal. Note: Other journals from the Institute of Physics are not available from this library.

    Availability:

    Only at the library
  • The Astrophysical Journal Supplement

    The Astrophysical Journal Supplement publishes significant papers containing extensive data or calculations, or of very specialized interest. The Supplement contains many of the most frequently cited papers in the astronomical literature. Note: Other journals from the Institute of Physics are not available from this library.

    Availability:

    Only at the library
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