Credo Reference searches approximately 2,, full text articles in titles from publishers. Broad subject coverage includes current and historical information in the sciences, humanities, and social sciences. ProQuest Research Library This link opens in a new window.
This group of full-text databases provide access to articles from newspapers, magazines, and technical and research journals. A great place to start your research. Index coverage is from present. Full-text coverage is from present. Note: Not all periodicals are covered for all years. Publisher Comparison The scientific professional societies are major publishers of scientific literature and the three aggregators do provide indexing for many of the most significant titles.
However, the three databases contain very little full-text content from the publications of these societies. All of the databases have full text from a few of the American Statistical Association titles as well as one or more of the Institute of Industrial Engineers titles. Research Library has three full-text titles from the Mathematical Association of America. Academic Elite has full-text content from six American Institute of Physics titles with a month embargo period. Research Library has full text from seven publications from the American Meteorological Society and seven publications of the National Research Council of Canada.
Although the databases have indexing for the societies' publications, they do not have full text or page images from the publications of the American Chemical Society, American Institute of Aeronautics and Astronautics, American Mathematical Society, American Society of Microbiology, Geological Society of America, and the Institute of Electrical and Electronics Engineers. Full text is available for only the most general publications of two of the engineering societies.
Expanded Academic has recently begun indexing and providing full-text articles from a number of the state academies of science journals, including those published by the Colorado-Wyoming, Michigan, Mississippi, New Mexico and Ohio academies of science.
In addition to the limited full text available from professional association publications, there is also very little full-text content from some of the prominent science publishers. There is very little indexing and no full-text content from Academic Press and Kluwer titles.
Only one Pergamon title and four Elsevier titles are available in full text in Academic Elite. Many of the publishers' titles that are available in full text are restricted by three to twelve month embargo periods i.
Embargo periods are a recent attempt by some publishers to provide content to aggregators while minimizing the risk of a loss of revenue through their own subscriptions and e-journal packages. Of the three databases studied, only Academic Elite includes science titles with embargo periods. The other database producers are not providing any titles with identified embargo periods. Subject Comparison Within the scientific disciplines, each of the databases has strengths and weaknesses.
Below are some observations about the scholarly subject content of the databases. The numbers listed in each subject and the titles mentioned are intended to be indicative rather than precise and exhaustive. Subjects were assigned for grouping purposes, but the assignments were sometimes arbitrary due to the interdisciplinary nature of the literature.
Consequently, the numbers reported in each category may be smaller than what they could be. For example, a title that was assigned the subject "Environmental Studies" may also be relevant to geologists and civil engineers. There are a large number of popular science magazines, e. There are also the well known, relatively high impact general science titles, e. All three databases have some full text of the high impact Science.
Expanded Academic has the greatest range to present ; Research Library has full text only up to Academic Elite has only to present. Research Library holdings begin in whereas Academic Elite has the title from to present. Research Library has full text from American Scientist. Expanded Academic has full text from Scientist and New Scientist. For Aerospace America , Academic Elite indexes two more years to present.
Expanded Academic indexes further back than Research Library for two of the three titles. Although Space Communications has a higher impact factor, Aviation Week and Space Technology may be more beneficial to most collections. Of the three databases, Academic Elite has a bit more coverage. All three databases have the full text of Agricultural Research. Research Library indexes no titles. Expanded Academic indexes one title, the high impact Annual Review of Astronomy and Astrophysics , but only to present.
Expanded Academic indexes 66 titles, providing full text from Research Library indexes 62 titles and provides full text from 25 titles. Within biology, each database has different strengths. Research Library is strong in animal sciences e.
Research Library indexes 20 titles and provides full text of 12 titles. Click on "Choose Databases" directly above the search boxes to see the list of available databases. The list that will pop up is long the snapshot below is only a fraction of the available databases. Check the box next to the databases you want, and then hit "OK. The University of Iowa Libraries.
0コメント