New on STN
February 2010
STN Express Maintenance Release, Version 8.4.2, Is Now Available for Download
Databases in Focus
Chemical Abstracts Plus
(CAplusSM) and CAS REGISTRYSM
STN Interface Comparison Sheet
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| Web access to sci-tech | The power of STN with the convenience of the Web for the experienced searcher | Comprehensive desktop access for the experienced online searcher |
Databases |
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Quantity | >100 | >200 | >200 |
Searching for sci-tech Info. | yes | yes | yes |
Searching for Patents | yes | yes | yes |
Searching for Chem. Substances | via | via | via |
Searching for Biosequences | no | yes | yes |
Access |
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Software Needed | Web browser | Web browser | STN Express with Discover! |
Telecommunications | Internet (TCP/IP) | Internet (TCP/IP) | Dial-up or Telnet (Internet) |
Security | secure socket option (https:) | secure socket option (https:) | via SOCKS and SSL |
IPAA (IP Adresss Authoriz.) |
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Intranets Solution |
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STN Account | STN Easy Account or STN Account | STN Account | STN Account |
Search Features |
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Search Language | menu-driven multi-language interface (4 search modes: Easy, Advanced, CAS Number, Patent Lookup) | STN retrieval language | STN retrieval language |
Assistants / Wizards | menu-driven | yes, e.g.: Search, Results, Patents, Alerts (SDI), Sequence, Structure, Commandfile, Transcript | yes, e.g.: Search/Refine, Display, Alerts (SDI), Analyze Answers, RNumbers, PNumbers |
Current awareness Alert (SDIs) | no (but available in STN Easy for Intranets) | yes (incl. SDI Assistant) | yes (incl. SDI Wizard) |
Search Operators | Boolean | Proximity, Numeric, Boolean | Proximity, Numeric, Boolean |
Multifile Searching | yes | yes | yes |
Relevance Ranking | yes | yes | yes |
Duplicate Removal | no (but duplicate identification) | yes | yes |
Refining Search Results | yes | yes | yes |
Display Features |
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Display Options | predefined formats | full range (flexible) | full range (flexible) |
Graphics | yes (integrated in text) | yes (integrated in text) | yes |
Full -Text Option | yes | yes (even in transcript) | yes (even in transcript) |
Hypertext Links | yes, e.g. Citation Searching, Cited References, Indexed Substances in Document | yes, e.g. Registry Number links, Patent Number links, Citation Searching, URLs, Help messages, Links between Derwent Records | yes, e.g. Registry Number links, Patent Number links, URLs |
Transcript Features |
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Transcript Formats | html, pdf, rtf | html (zip,exe), rtf (zip,exe,rtf), pdf | trn, rtf |
Transcript Availability | 4 days | 4 days | n/a (saved locally) |
Postprocessing | no | Results (rtf) can be postprocessed with STN Express 6.01 and higher for Windows | Custom Table Tool, Custom Report Tool, Predefined Report Tools and Predefined Table Tools (rtf, html, xls, txt) |
Technical Requirements |
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Operating System | Windows 95, 98, NT, ME, 2000, XP (Microsoft I.E. 5.0; 5.5; 6.0 or Netscape Communicator 4.5, 4.6x, 4.7x, 6.1, 6.2), Macintosh (Internet Explorer 5.0, 5.1), all with JavaScript enabled. Java for 3-D molecules | Netscape Navigator 4.x and higher (Windows 95, 98, ME, NT, 2000, XP; Mac, Unix), or Microsoft I.E. 4.x and higher (Windows 95, 98, ME, NT, 2000, XP: 4.x/ 5.x; Mac: 4.x; Unix), with JavaScript enabled | |
Costs |
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Pricing | flat charge per search and file specific display charges (free refine) | Standard STN pricing: pay-as-you-go, including connect hour, search term and display charges | Standard STN pricing: pay-as-you-go, including connect hour, search term and display charges |
Academic Discounts | yes | yes | yes |
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For more Information | STN on the Web-Website |
