养鱼为什么养单不养双
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| Producer | Elsevier |
|---|---|
| History | March 12, 1997[1] |
| Access | |
| Cost | Subscription and open access |
| Coverage | |
| Disciplines | Science |
| Record depth | Index, abstract & full-text |
| Format coverage | Books, journals |
| Geospatial coverage | Worldwide |
| Links | |
| Website | sciencedirect |
ScienceDirect is a searchable web-based bibliographic database, which provides access to full texts of scientific and medical publications of the Dutch publisher Elsevier as well of several small academic publishers. It hosts over 18 million publications from more than 4,000 academic journals and 30,000 e-books.[2][3] The access to the full-text requires subscription, while the bibliographic metadata are free to read. ScienceDirect was launched by Elsevier in March 1997.[4]
Usage
[edit]The journals are grouped into four main sections:
Article abstracts are freely available, and access to their full texts (in PDF and, for newer publications, also HTML) generally requires a subscription or pay-per-view purchase unless the content is freely available in open access.
Papers published under several open access licenses are available on ScienceDirect without cost. Access to the full-text pdfs of non-open access publications require either a subscription (to the specific journal rather than to the whole database) or per-article/book payment. Subscriptions to the overall content hosted on ScienceDirect, rather than to specific titles, are usually acquired through what is called a big deal. The other big five publishers have similar offers.
ScienceDirect also competes for audience with other large aggregators and hosts of scholarly communication content such as academic social network ResearchGate and open access repository arXiv, as well as with fully open access publishing venues and mega journals like PLOS.
ScienceDirect also carries Cell.
The search and bibliographic export options of ScienceDirect are very limited. For better search capabilities Elsevier provides via internet a paid-access database Scopus.
See also
[edit]References
[edit]- ^ "ScienceDirect.com WHOIS, DNS, & Domain Info – DomainTools". WHOIS. Retrieved 2025-08-06.
- ^ "ScienceDirect". Retrieved 17 February 2016.
- ^ Reller, Tom. "2014 RELX Annual Reports and Financial Statements" (PDF). RELX Group. RELX Group. Archived from the original (PDF) on March 19, 2015. Retrieved 17 February 2016.
- ^ Giussani, Bruno (4 March 1997). "Building the World's Largest Scientific Database". New York Times. Retrieved 14 March 2014.
Further reading
[edit]- Boukacem-Zeghmouri, Chérifa; Bador, Pascal; Lafouge, Thierry; Prost, Hélène (2016). "Relationships between consumption, publication and impact in French universities in a value perspective: A bibliometric analysis" (PDF). Scientometrics. 106: 263–280. doi:10.1007/s11192-015-1779-z. S2CID 8897085.
- Emrani, Ebrahim; Moradi-Salari, A.; Jamali, Hamid R. (2013). "Usage data, e-journal selection and negotiations: Iranian consortium experience". hdl:10760/19670.
- Gies, Ted (2018). "The Science Direct accessibility journey: A case study". Learned Publishing. 31: 69–76. doi:10.1002/leap.1142.
External links
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