Full Coverage of 2007 Collection
This update involves the processing of full publication and citation data belonging to Scopus 2007 Collection. Former data shown did not cover the last period of 2007, which has now been completed. Consequently, from now on, 2007 Indicators will only suffer slight variations, that if happen will be due to retrospective indexing.

Inclusion of 111 New Titles
New journals, in a number of 111, have been included into the database, going beyond 16000 journals covered. The full Scopus Collection has been incorporated to SJR, including even those journals presenting low coverage ratios, in order to minimize the time frame needed to display journal outcomes.

SJR Indicators recalculated
SJR indicators have been recalculated to accommodate all the bibliometric information provided by these new data. Last years indicators will show the highest variations since they represent the core of the update, however previous year's values can also experiment changes that will be more accentuated in some areas due to citation profiles.

Retrospective Data Inclusion
To increase the coverage of titles not yet fully indexed, retrospective data have been included. This set of data is usually formed by backward coverage expansion of partially covered journals which were incorporated to the database in recent updates as well as data corrections made as result of the data quality control procedure. However these data do not generally involve significant variations in the value of the indicators.

Top 10 Journals by SJR

1. Annual Review of Immunology (SJR: 18,624)
2. Annual Review of Biochemistry (SJR: 13,292)
3. Annual Review of Cell and Developmental Biology (SJR: 11,903)
4. Cell (SJR: 10,732)
5. Nature Immunology (SJR: 9,621)
6. Nature reviews. Molecular cell biology (SJR: 9,427)
7. Annual Review of Neuroscience (SJR: 8,494)
8. Annual Review of Genetics (SJR: 8,429)
9. Nature Genetics (SJR: 8,038)
10. Genes and Development (SJR: 7,779)

The comprehensive review focuses on SJR section devoted to Country Indicators. It stresses that SJR's country profile pages "provide more details and excellent visualization for all the countries and territories plus the whole world as a unit". It must be pointed out that SJR main goal is to offer authoritative bibliometric data as well as an analytic tool that make users' work easier, whether they are librarians, publishers, researchers or research paper authors. In this sense, the review also says that "Excellent graphs show a variety of indicators for the selected countries".

One of the most valued characteristic is the ability of SJR to produce reports which allow comparisons of the research activity from different nations. As an example, the author himself carries out small and immediate analysis of international collaboration and citedness based upon tables and charts drawn from SJR Compare function for Argentina, Brazil, Chile and Venezuela.

The review ends up by underlining that "SJR is a top-notch free system with extensive and very important bibliometric statistics about nearly 16,000 serial publications and more than 230 countries and territories".

Read the full story in this link...

Measuring Up - the Evolution of Impact Metrics
ALPSP Seminar
Monday 15 June 2009, London
British Institute of Radiology, 36 Portland Place, London, W1B 1AT, UK
More info

Former seminars on new bibliometrics including the SJR indicator.
The ALPSP seminar is not the first one discussing the SJR indicator as an important agent in new bibliometrics trends, it forms part of a list which include the SJR indicator among the emerging methodologies to analyse bibliographic data in research performance evaluation. Previous lectures/seminars on research evaluation discussing the SRJ indicator were:

• Citation Analysis & Evaluating Research Performance. The Impact Factor, h-index and beyond.
  By: The Professional/Scholarly Publishing (PSP) Division of the Association of American Publishers Journals Committee
  Held at New York on November 19th, 2008.
• College Colloquium Series: Dr. Vicente Guerrero Speaks on SCImago Journal Rank (SJR)
  At the College of Information Science and Technology at the University of Drexel, Philadelphia, USA November 20th, 2008.

More than one year after its release, on November 2007, the SJR website has received nearly 300,000 visits, furthermore in the last 6 months the amount of visits shown an increasing trend around 20,000 visits per month, reaching a maximum during February with 30,000 visits. These facts overtake our group's prospects and confirm the original idea we had about its usefulness and timeliness for the analysis and evaluation of research performance.

We have also analyzed the SJR website's international visibility to assess its "market" penetration and the data confirm the great reception and spreading throughout the world. The visit rate per world continent is as follows (approximated ratios): Europe 41%, Americas 32%, Asia 22%, Oceania 2.5% and Africa 2%.

Country ranking of viewed pages (nearly 2 millions) is headed by USA 15%, followed by Spain 15%, Brazil 9%, United Kingdom 5%, India 4% and around a 3% we found Germany, Iran, Canada, China and Italy.

Concerning to website content issues we highlighted that the most used feature (50% of viewed pages) is Journal Profiles (Journal Search), followed by Journal Rankings (20%). Country performance section of the website captured a 10% of the viewed pages, both Country Profile (Country Search) and Country Rankings (Country Indicators) reaching a 5%. Moreover, the website sections Compare and Map Generator, which allow users to compare, through a wealthy of indicators, scientific output and impact of journals, countries and world regions as well as to depict and construct "maps of science" using citation networks, involved around 7% and 3% of viewed pages respectively.

These data make us think we are on the right track with this venture, which is hazardous both in terms of human efforts and resources involved, and the dimension and impact over the different sectors of the research evaluation arena.

Eventually we, at SCImago Research Group, encourage everyone to seize the range of possibilities offered by the tool to collect and use the data in your analysis, evaluation and research tasks.

Since then more than 1000 journals around the world have placed these embeddings on their websites. Some featured publishers which are now using the widget to inform their users are the Brazilian Scientific Electronic Library Online SciELO which publishes more than 600 online journals, the electronic library project Redalyc, supported by the University of State of Mexico, with more than 400 journals or the american bioscience private publisher Landesbioscience, among many others.

The embedding depicts a journal specific chart, shown as a static image, containing up-to-date time series on citations, citations per documents and SJR indicator values for the period 2000-2007. The widget, which is shown in a non-intrusive way, is devised both to offer convenience and easy-to-use to site maintainers and to provide journal's users with authoritative information on journal trends at a first glance.

Journal's performance charts are created with data extracted from around 16,000 journals, 16 millions publications and more than 122 millions citations from Elsevier's database Scopus are processed, moreover data are updated three times a year to provide up-to-date values for the indicators exposed.

Embedding the widget is just as easy as copying the code appearing on the left side of the desired journal profile page, selecting whether or not to display the journal title, and pasting it into your web or blog.

"Its results indicate that the notion of scientific impact is a multidimensional construct that cannot be adequately measured by any single indicator..."

(Bollen, J.; Van de Sompel, H.; Hagberg, A.; Chute, R. A principal component analysis of 39 scientific impact measures. Arxiv: 0902.2183vl. 2009)

[...]

The most of scientific output in the education area comes from United States and Europe. The Latin American output is 2% of the worldwide production with 1,424 papers in a period of 11 years. If we add the Spanish and Portuguese outputs, the representation of the region is 3% of the global output (2,711 papers)...

(García-Cepero, M.C. (2008) Panorama de las publicaciones seriadas y producción académica en el área de Educación, Iberoamérica. Magis, Revista Internacional de Investigación en Educación. 1(1) 13-30)

In the area of Biochemistry, Genetics and Molecular Biology, International Journal of Biological Sciences is also ranked very well, among the top 16.5% of journals (207/1257). This places it above many journals in the area such as FEBS Letters (209), BMC Molecular Biology (218), FEBS Journal (223), Gene (228), European Journal of Biochemistry (246), Biochemical and Biophysical Research Communications (266), Cell Division (286), Biology Direct (308), Pharmacogenomics Journal (310), Nature Protocols (321).

In the area of Immunology and Microbiology, International Journal of Biological Sciences is also positioned well, among the top 16.4% of journals (49/299).

(International Journal of Biological Sciences. Journal Ranking. Data obtained on Nov. 25, 2008)

The last summer issue of APS's newsletter, Observer, contained an interesting article by Reinhold Kliegl in which he documented the increasing tendency of psychological scientists to collaborate across national borders. He cited, in this context, the SCImago Journal & Country Rank (SJR) that tracked the percentage of articles in Psychological Science, Psychological Review, Psychological Bulletin, Journal of Experimental Psychology: General, and Psychonomic Bulletin & Review that were co-authored by multi-country teams.

Aggregating across this array of impressive journals, SCImago Journal & Country Rank (SJR) demonstrated a linear increase of such articles between 1999 and 2006. Whereas in 1999, 15 percent of all articles were published by a team of authors from at least two countries, the corresponding number in 2006 had already climbed to 35 percent.

This means that in a mere seven years, the percentage of multi-country author teams had more than doubled.

(Uwe P. Gielen. International Psychology Bulletin. Vol. 12, n.3, p.4, 2008)

During these days, there will be interventions several key Spanish players from the university and scientific arena. Amongst them, Dr Félix de Moya Anegón will speak about the international scientific journals diffusion. The SCImago Journal & Country Rank (SJR) will be addressed during the event.

A 5.4% of the worldwide scientific output is originated in Ibero-America. Spain and Brazil stand above of the rest. Spain ranks 9th at the global level and its scientific production are equivalent to 2.4%, while Brazil occupies the 17 position and it represents a 1.2% of the total.

Moreover, Spain also is the Iberoamerican country with largest impact at citation level. Brazil, Mexico, Argentina and Portugal occupy the following positions; the impact of their scientific research is lower than their contribution in the field of worldwide output...

(Cimoli, M. (coord.); Jordán, V.; Primi A.; Rodríguez, M. and Rovira, S. Espacios Iberoamericanos: "La Economía del Conocimiento". CEPAL. 2008)

According to the portal, the most journals of the category of "Pediatrics, Perinatology and Child Health" is published in USA and United Kingdom. It shows 7 Spanish journals ("An Pediatr", "Rev Esp Pediatr", "Act Ped Esp", "Pediatrika", "Ped Integral", "Ped Catalana", "SD Rev Med INT sobre el S. Down").

"An Pediatr" ranks 115th and "Pediatrika" ranks 182nd on the basis of SJR indicator. Taking into account the H-index, An Pediatr occupies the 113th position and SD the 185th place.

In this field, the country indicators ranking by H-index is led by USA, United Kingdom and Canada. Spain ranks number 18 with an H-index of 35.

(Gonzálz de Dios, J.; González Guitián, C.; Valderrama Zurián, J.C.; García-Puente Sánchez, M.; González Alcaide, G. and Aleixandre Benavent, R. Utilidad Cienciométrica de la Base de Datos Scopus: su aplicación al área de las revistas biomédicas pediátricas. An Pediatr. 2008, 68 (Supl 2): 1-378. p.211)

[...]

The topic is well documented in this article and we will not go over it again, but it is perhaps of interest to note SCImago, employing a recently launched scientometric journal ranking algorithm, developed jointly by researchers from a number of Spanish universities.

This project offers an alternative, and perhaps a more appropriate means to judge the soundness of scientific articles, which may be particularly useful in relation to those written from Spanish and Portuguese-speaking countries. Although the language barrier remains a problem, many journals now provide abstracts in English increasingly, journals and databases are encouraging bilingual and multilingual publication.

(Williams, J.R.; Bórquez, A. and Basáñez María-Gloria. Hispanic Latin America, Spain and the Spanish-speaking Caribbean: A rich source of reference material for public health, epidemiology and tropical medicine. Emerging Themes in Epidemiology. 2008, 5:17)

At the field level, Australia is placed in the top 10 in 15 of the 27 Scopus fields and no lowers than 18 in any single field for total outputs. Australia ranks in the top for citations per paper in 9 of the 27 Scopus fields and is top five in two fields: Energy and Engineering. Australia achieves top status in several areas but its performance is overshadowed by small nations such as Switzerland, the Netherlands, Denmark and Sweden which clearly strive to produce research in niche areas of the highest quality and academic impact.

(Ian O’Connor. Submission to the review of Australia higher education. Griffith University. 2008)

[...]

As a country, Chile ranked number 43 (among 197 countries) in the number of papers produced, surpassed in South America by Argentina (ranked 19) and Brazil (ranked 13), according to the SCImago database. Nevertheless, an analysis on the average number of cites per paper established that Chile (6.01 cites/paper) was superior in this indicator compared to Brazil (5.2 cites/paper) and Argentina (5.65 cites/paper).

(Krauskopf, E. Plant Science research productivity in Chile during the past 20 years. Biological Research, 41: 137-141, 2008)

(Wimberley, L. Open Access Journals in the Developing World. Digital Library of Information Science and Technology, 2008.)

[...]

Mexico appears with higher output due to a Periódica's bias. In this data collection, there is preponderance of the Mexican documents, and the Brazilian output is under-represented. De fact, these outcomes don't show Brazil as the Latin American country with the largest production of journals and articles...

(Michán, L.; Russel, J.M.; Sánchez Pereyra, A.; Llorens Cruset, A. and López Beltrán, C. Análisis de la Sistemática Actual en Latinoamérica. Interciencia, vol.33, n.10, Oct., 2008)

Similar to output ranking, the citation ranking keeps the same countries, but it changing their positions. Spain keeps the 11th place. Whereas Belgium, Israel, Russia and Korea increase in Scopus ranking, Finland comes down one place.

The Spanish representation in the world citation evolves from 2.13% in 1996 to 3.32% in 2006, showing rates of growth approaching 56%.

(Moya-Anegón, F., Chinchilla-Rodríguez, Z., Corera-Álvarez, E., González-Molina, A., Hassan-Montero, Y., Vargas-Quesada, B. Indicadores Bibliométricos de la Actividad Científica Española: 2002-2006.FECYT. 2008)

[...]

Finally, Dr. Félix de Moya presented "The Mexican Scientific Output in the Global Context", where he broached subjects like The Atlas of Science, the mapping of the Iberoamerican Science and the SCImago Journal & Country Rank (SJR), among others…

Thailand has seen dramatic growth over the last twenty years and consistent growth over the last six years. By comparison, growth for the Philippines and Indonesia has been slightly erratic.

Thailand ranks second in the ASEAN region behind Singapore, and alongside Malaysia, Indonesia, the Philippines and Vietnam, in terms of volume of output...

(Commins, T.; Songkasiri, W.; Tia, S. and Tipakorn, B. Science and technology research in Thailand: Some comparisons from the data regarding Thailand's position in the region based on volume of published work. Maejo International. Journal of Science and Technology, v. 2, n.3, p. 508-515, 2008).