Authors:Daniel Torres-Salinas, Emilio Lopez-Cózar and Evaristo Jiménez-Contreras
In this work, we compare the difference in the number of citations compiled with Scopus as opposed to the Web of Science (WoS)
with the aim of analysing the agreement among the citation rankings generated by these databases. For this, we analysed the
area of Health Sciences of the University of Navarra (Spain), composed of a total of 50 departments and 864 researchers. The
total number of published works reflected in the WoS during the period 1999–2005 was 2299. For each work, the number of citations
in both databases was recorded. The results indicate that the works received 14.7% more citations in Scopus than in WoS. In
the departments, the difference was greater in the clinical ones than in the basic ones. In the case of the rankings of citations,
it was found that both databases generate similar results. The Spearman and Kendall-Tau coefficients were higher than 0.9.
It was concluded that the difference in the number of citations found did not correspond to the difference of coverage of
WoS and Scopus.
This paper gives an outline of a new bibliometric database based upon all articles published by authors from the Netherlands, and processed during the time period 1980–1993 by the Institute for Scientific Information (ISI) for theScience Citation Index (SCI),Social Science Citation Index (SSCI) andArts & Humanities Citation Index (A&HCI). The paper describes various types of information added to the database: data on articles citing the Dutch publications; detailed citation data on ISI journals and subfields; and a classification system of publishing main organizations, appearing in the addresses. Moreover, an overview is given of the types of bibliometric indicators that were constructed. Their relationship to indicators developed by other researchers in the field is discussed. Finally, two applications are given in order to illustrate the potentials of the database and of the bibliometric indicators derived from it. The first represents a synthesis of classical macro indicator studies at the one hand, and bibliometric analyses of research groups or institutes at the other. The second application gives for the first time a detailed analysis of a country's publication output per institutional sector.
Authors:W. Glänzel, A. Schubert, U. Schoepflin and H. Czerwon
A serious shortcoming of bibliometric studies based on theSocial Sciences Citation Index is the lack of a universally applicable subject classification scheme as individual papers are concerned. Moreover, the selective
coverage of more than thousand scientific journals per annum proved to be an insuperable obstacle in the delimitation of social
science subject areas. Subject classification of papers on the basis of assigning journals to subject categories (like those
found in the various supplements of ISI databases) works well in case of fully covered and highly specialised journals in
the social sciences, too, but fails for multidisciplinary and selectively covered journals. This study presents the results
of an item-by-item subject classification approach, where assignment is based on the analysis of the subject categories of
This analysis extends the results of an earlier study by the authors on the possibility of delimiting subfields in the hard
and life sciences based on reference analysis. The assignment proved also reliable for a considerable share of literature
in the social sciences. Due to the peculiarities of the database this share is lower in the SSCI than that in the SCI. Although
an iterated application of the procedure is expected to increase the number of classifiable publications, it is suggested
that in the sociated sciences the method should be used in combination with other means of subject assignment.
Authors:R. Kostoff, H. Eberhart, D. Toothman and R. Pellenbarg
This paper shows how Database Tomgraphy can be used to derive technical intelligence from the published literature. Database
Tomography is a patented system for analyzing large amounts of textual computerized material. It includes algorithms for extracting
multi-word phrase frequencies and performing phrase proximity analyses. Phrase frequency analysis provides the pervasive themes
of a database, and the phrase proximity analysis provides the relationships among the pervasive themes, and between the pervasive
themes and sub-themes. One potential application of Database Tomography is to obtain the thrusts and interrelationships of
a technical field from papers published in the literature within that field. This paper provides applications of Database
Tomography to analyses of both the non-technical field of Research Impact Assessment (RIA) and the technical field of Chemistry.
A database of relevant RIA articles was analyzed to produce characteristics and key features of the RIA field. The recent
prolific RIA authors, the journals prolific in RIA papers, the prolific institutions in RIA, the prolific keywords specified
by the authors, and the authors whose works are cited most prolifically as well as the particular papers/journals/institutions
cited most prolifically, are identified. The pervasive themes of RIA are identified through multi-word phrase of the database.
A phrase proximity analysis of the database shows the relationships among the pervasive themes, and the relationships between
the pervasive themes and subthemes. A similar process was applied to Chemistry, with the exception that the database was limited
to one year's issues of the Journal of the American Chemical Society. Wherever possible, the RIA and Chemistry results were
compared. Finally, the conceptual use of Database Tomography to help identify promising research directions was discussed.
This paper seeks to provide current indicators on Indian science and technology for measuring the country’s progress in research.
The study uses for the purpose 11 years publications data on India and top 20 productive countries as drawn from the Scopus
database for the period 1996 to 2006. The study examines country performance on several measures including country publication
share in the world research output, country publication share in various subjects in the national context and in the global
context, patterns of research communication in core Indian domestic and international journals, geographical distribution
of publications, share of international collaborative papers at the national level as well as across subjects and characteristics
of high productivity institutions, scientists and cited papers. The paper also compares the similarity of Indian research
profile with top 20 productive countries. The findings of the study should be of special significance to the planners & policy-makers
as they have implications for the long term S&T planning of the country.
The aim of this research is to gain an insight into international recognition of the STM (Science, Technology, and Medicine)
Croatian journals measured by citations in SCI-expanded database. The sample for the research was a citation analysis of 142
journals in time span 1975–2001 for papers published in 1975–1998. More than 90% of those journals are not indexed by SCI-expanded.
For the purpose of this research we introduced a new scientometric indicator Normalized number of Citations per 100 Papers (NCP) that allows us direct comparison of the journals from various categories (NCP = 100C/P / IF1989). We chose the year 1989 as a mean value for time span 1975–2001.
By citation analysis we established the influence of errors on recognition of Croatian journals and their articles. Obtained
results show that an article-to-article link is not found for 32% of cited items. The most frequent type of error is journal
title, 37%, which indicates that approximately one third of Croatian journals can not be found when searching by journal title
Some Croatian journals, even not indexed by SCI-expanded, showed relatively high rank in an impact, i.e. their NCP is higher
than 100, and number of citations per paper is higher than 1.
Authors:Michel Zitt, Suzy Ramanana-Rahary and Elise Bassecoulard
The increasing use of bibliometric indicators in science policy calls for a reassessment of their robustness and limits. The
perimeter of journal inclusion within ISI databases will determine variations in the classic bibliometric indicators used
for international comparison, such as world shares of publications or relative impacts. We show in this article that when
this perimeter is adjusted using a natural criterion for inclusion of journals, the journal impact, the variation of the most
common country indicators (publication and citation shares; relative impacts) with the perimeter chosen depends on two phenomena.
The first one is a bibliometric regularity rooted in the main features of competition in the open space of science, that can
be modeled by bibliometric laws, the parameters of which are “coverage-independent” indicators. But this regularity is obscured
for many countries by a second phenomenon, the presence of a sub-population of journals that does not reflect the same international
openness, the nationally-oriented journals. As a result indicators based on standard SCI or SCISearch perimeters are jeopardized
to a certain extent by this sub-population which creates large irregularities. These irregularities often lead to an over-estimation
of share and an under-estimation of the impact, for countries with national editorial tradition, while the impact of a few
mainstream countries arguably benefits from the presence of this sub-population.
Authors:Rodrigo Costas and Isabel Iribarren-Maestro
The CD-ROM and web versions of the Science Citation Index databases are compared as to their content and format features.
Several differences have been detected such as the use of different punctuation marks in both versions and a different organisation
of author’s affiliation data. These differences make automatic comparisons of ISI products difficult and they should be considered
when matching both databases. Some recommendations to ensure more normalisation and reliability of data are pointed out.
A database of potentially biologically active peptide sequences, named BIOPEP (http://www.uwm.edu.pl/biochemia), has been developed and applied for classification of numerous food proteins as potential sources of peptides with antihypertensive activity. More than one hundred proteins included in the BIOPEP database were analyzed and classified according to the frequency of the occurrence of antihypertensive fragments. As the example of detailed profile of potential biological activity, the bovine beta-globulin A is presented. It was found that apart from the dominant antihypertensive activity, other effects (opioid, dipeptidyl peptidase IV inhibitory, immunomodulative, antioxidative) may be present. It can be concluded that this method may be a useful tool in this field. The antihypertensive activity was the most dominant because fragments with such activity were present in all of the examined proteins. It encouraged us to classify proteins into families, which may be better or the worse source of antihypertensive fragments. We found statistically significant differences between the values of parameter A (P<0.001) among the all five families we obtained. We found that in silico analysis can be useful in the analysis of the large quantities of data in the field of proteins as the source of biologically active peptides.