Archive for June 2010
Elsevier has announced that it is celebrating the tenth anniversary of its online scientific research platform, ScienceDirect.
The tenth anniversary also marks the addition of the ten millionth article to the database, which contains full-text articles and book chapters.
ScienceDirect became fully operational in 2000 when it surpassed one million articles and launched its backfiles initiative, adding literature published prior to 1994.
According to Elsevier, it has since then become the largest and most extensive resource of its kind.
The platform was created to help scientists quickly find the most relevant content for their specific research objectives by offering search, reference and discovery tools.
Institutions worldwide currently offer ScienceDirect to their faculty and students, with up to twenty articles downloaded per second from the platform.
Press release from KnowledgeSpeak.
A recent survey published in PLoS ONE, reveals that one in five research papers published in 2008 are currently available for free on the Internet.
Author manually checked the availability of 1837 articles, randomly sampled from 1.2 million articles in the Scopus database from Elsevier.
Of articles published in 2008,
- 8.5 percent were freely available at the publishers’ websites.
- An additional 11.9 percent free manuscript versions could be found on authors’ websites or in repositories.
Open Access has so a significative impact on the availability of the scientific journal literature.
Breaking down the articles by discipline, it was found that with 33 percent, earth sciences had the highest overall OA share, while chemistry had the lowest with 13 percent.
Björk B-C, Welling P, Laakso M, Majlender P, Hedlund T, et al. (2010) Open Access to the Scientific Journal Literature: Situation 2009. PLoS ONE 5(6): e11273. doi:10.1371/journal.pone.0011273
On the basis that only 40% of top science journals articles are cited by others within the 5 yers after publication (according Peter Jasco, .2009), Derek Lowe wonders why low quality papers get pubished and advocates for chemical data archives…
Lowe, Derek. What to do with the not-quite worthless. In the pipeline, online 25th of June, 2010:
Because only a fraction of Chemistry knowledge is published on traditional sources, ChemSpider rely on millions of amateurs and experts over the world to build an extensive database.
According Antony Williams, (a ChemSpiderman of course)
What are differences between ChemSpider, Reaxys and SciFinder
- Everything on Reaxys and Scifinder is curated
- The data resources can be over a 100 years old
- The platforms are commercial and “read-only”
- ChemSpider is free, to everyone
- Data are in a state of ongoing curation & annotation
- Data resources are from the “electronic era”
- Data are expanded daily and enhanced on an ongoing basis
- The platform delivers integrated algorithm access
As WordPress celebrates impressive stats (see below), Science is, after all, not so badly scored in Hot Topics
- Health (24th position)
- Science (52th position)
Official stats : http://en.wordpress.com/stats/
- There are over 25 million WordPress publishers as of June 2010
- 11.4 million blogs hosted on WordPress.com
- plus 13.8 million active installations of the WordPress.org software.
- over 260 million people worldwide visit one or more WordPress.com blogs every month,
- and they view over two billion pages on those blogs each month.
- WordPress.com users publish about 350,000 new posts on an average day
- (and their readers leave 400,000 new comments every day).
Chemspider, search engine supported by The Royal Society of Chemistry (see my previous post), has scooped the Innovative Software Award at the iExpo/KM Forum 2010.
The award is organised by GFII (the Association for Professionals of the Information Industry) and recognises leading software providers in the information industry for their innovative capabilities and user interfaces.
Presented by Didier Benard, from Sanofi Aventis R & D, the award recognises a non-commercial initiative in enhancing information online whether for the professional community or for the general public.
The jury selected ChemSpider as an award winner for providing free access to data on chemical information (both text and structure-based), which is reliable and controlled by an international expert community.
ChemSpider links together compound information across the web, providing free text and structure search access of millions of chemical structures.
With an abundance of additional property information, tools to curate and use the data, and integration to a multitude of other online services, ChemSpider claims to be the richest single source of structure-based chemistry information available online.
“As a result of this lack of time, people are just hyper-focused on
Science, Nature and PNAS” said Linda Nordling in the Gardian.
A quick look of last TOP25 hottest articles shows up that 11 millions of ScienceDirect readers are as well hyper-focused on the 2 major journals published by Elsevier.
Despite that the platform offers more than 2,500 titles (25% of the global science publisher claims Elsevier), Cell and The Lancet can concentrate up to 100% of 25 top read articles in ScienceDirect.
- Jan-Mar 2010: Cell, 13 + The Lancet, 5 : 72%
- Oct-Dec 2009: Cell, 13 + The Lancet, 8 : 84%
- Jul-Sept 2009: Cell, 9 + The Lancet, 4 : 52%
- Apr-Jun 2009: Cell, 8 + The Lancet, 3 : 44%
- Jan-Mar 2009: Cell, 10 + The Lancet, 0 : 20%
- Jan-Mar 2008: Cell, 18 + The Lancet, 1 : 76%
- Jan-Mar 2007: Cell, 21 + The Lancet, 1 : 88%
- Jan-Mar 2006: Cell, 19 + The Lancet, 4 : 92%
- Jan-Mar 2005: Cell, 23 + The Lancet, 2 : 100%
A good overview of main bibliographical tools: EndNote, Reference Manager, RefWorks, Zotero and the last one Mendeley which claims already 100,00 users.
So many tools for a unique usage: to retain the knowledge.
Norma, Frank (Nature). From Sci-Mate to Mendeley – a brief history to reference managers. Online, June 8, 2010.
The famous Roddy MacLeod, now retired, was one of the founder of the wonderful TicTOCs, now the JISC JournalTOCs (that I already mentioned as one of the rare web 2.0 service which competes really with paid services ; see my former post).
Now, there is the first customised version of JournalTOCs for Academic Libraries, which is called WattJournals.
A great initiative for libraries…
MacLeod, Roddy. Every library should have one of those, but so far, only one does. June 6, 2010 Online:
To read, in the latest issue of Scientometrics, 2 studies compare GS with the 2 paid competitors.
- (Earth science) GS covers about 85% of content indexed by ISI WoS
- For impact studies the h-index has proofed to be a robust measure
- WoS confirms its position as the leading citation index
- WoS is still the leader in classical areas such as Physics and Chemistry
- Scopus is more efficient for fields like Health
- The WoS is still the most widely used and well known source in the academic world
- WoS is also the oldest, and to some extent, the least developed
- GS gathers information on documents that are not only published in journals but others such as: papers from conferences, books, theses, research reports and preprint repositories
- GS has the potential to offer a wider panorama of world scientific output in other languages (for instance Spanish)
Mikki, Suzanne. Comparing Google Scholar and ISI Web of Science for Earth sciences. Scientometrics, Vol.82, N°2, Feb. 2010, pp. 321-331
Etxebarria, G. & Gomez-Uranga, M. Use of Scopus and Google Scholar to measure social sciences production in four major Spanish universities. Scientometrics, Vol.82, N°2, Feb. 2010, pp. 333-349