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Abstract
A method of using of commonly available online services for bibliometric studies is demonstrated. Distributions of papers by subfield, time, author and journal can be generated almost instantly and at very low cost. This article gives information on how to perform such studies.
Abstract
Nanotechnology is a novel technological field said to be one of the key technologies in the 21st century revoltionizing information technology, materials and medicine. Bibliometric quantification is a way to show the emergence of a new technology.Braun et al.1 could establish an exponential growth pattern of publications in nano-science and technology starting in the early 1990s. Using their study as basis we intend to further characterize nanotechnology using bibliometric as well as patent data. We can show that the share of boundary-spanning publications is exceptionally high in the field of nanotechnology. Our co-authorship analysis indicates that countries follow different patterns of collaboration. Some countries tend to have bilateral relations while others collaborate with a much larger array of nations. Patent data in combination with bibliometric reveals differences in the application of science. In our conclusion we raise a number of questions requiring an analysis using also other types of data. Still, a closer investigation and disaggregation of bibliometric data may come up with additional findings.
Abstract
Scientific collaboration has become a major issue in science policy. The tremendous growth of collaboration among nations and research institutions witnessed during the last twenty years is a function of the internal dynamics of science as well as science policy initiatives. The need to survey and follow up the collaboration issue calls for statistical indicators sensitive enough to reveal the structure and change of collaborative networks. In this context, bibliometric analysis of co-authored scientific articles is one promising approach. This paper discusses the relationship between collaboration and co-authorship, the nature of bibliometric data, and exemplifies how they can be refined and used to analyse various aspects of collaboration.
Abstract
A study of the production of scientific papers, co-authorships, and R&D-expenditures shows that science is becoming more equally distributed among the OECD-countries. Papers in the journalScience are more unequally distributed than papers inScience Citation Index as a whole or the distribution of R&D-investments. Scientific collaboration, is a major factor affecting the distribution of scientific papers.
Abstract
This paper seeks to describe the social circles, networks, or invisible colleges etc that make a scientific speciality in terms of (mathematically precise) sets generated by documents citation and accessible through theSocial Science Citation Index \TM . The document and author sets that encompass a scientific speciality are the basis for some interdependent citation matrices. We illustrate our method of construction of these sets and matrices through an application to the literature on \ldinvisible colleges\rd.
Abstract
A citation matrix for the thirteen most cited journals in economics is constructed from data in theSocial Sciences Citation Index. tm The components of the eigenvector associated with the largest possible eigenvalue (the Frobenius root) of this matrix defines “impact values” by which these journals may be ranked.
Abstract
Many new journals are started in response to increasing specialization and limited space in existing journals. In this study two journals in organization research are studied,Administrative Science Quarterly as the first mover in the field andOrganization Studies as the challenger. It is shown that the new journal gradually differ from the old in terms of the national origin of its authors as well as the documents cited. It is concluded that the scientific journal market may not mirror the copy-cat behaviour found among newspapers or companies in other markets.
Abstract
Scientific collaboration has become a major issue in science policy. The need to survey and follow up such collaboration calls for statistical indicators sensitive enough to reveal the structure and change of collaborative networks. Bibliometric analysis of co-authored scientific articles is one promising approach. This study presents data generated from a comprehensive analysis of some 20,000 articles produced by 22 Nordic universities (Denmark, Finland, Iceland, Norway, Sweden) in 1993. The results show that scientific collaboration plays a key role for all universities, and that they collaborate with external institutions in just about the same extent. The inter-Nordic university network comprises about ten percent of all institutional collaborations. However, the amount of collaboration varies across fields, physics and medicine having a high degree of collaboration. The inter-Nordic network is of equal importance as the national network in physics and geosciences. Especially, when one looks at international collaboration outside the Nordic arena, the number of overlapping partners is quite low. This suggests that research specialization is the major force governing international contacts.
Abstract
A growing science policy interest in international scientific collaboration has brought about a multitude of studies which attempt to measure the extent of international scientific collaboration between countries and to explore intercountry collaborative networks. This paper attempts to clarify the methodology that is being used or can be used for this purpose and discusses the adequacy of the methods. The paper concludes that, in an analysis of collaborative links, it is essential to use both absolute and relative measures. The latter normalize differences in country size. Each yields a different type of information. Absolute measures yield an answer to questions such as which countries are central in the international network of science, whether collaborative links reveal a centre — periphery relationship, and which countries are the most important collaborative partners of another country. Relative measures provide answers to questions of the intensity of collaborative links.
In [14] we investigated some Vilenkin—Nörlund means with non-increasing coefficients. In particular, it was proved that under some special conditions the maximal operators of such summabily methods are bounded from the Hardy space H 1/(1+α) to the space weak-L 1/(1+α), (0 < α ≦ 1). In this paper we construct a martingale in the space H 1/(1+α), which satisfies the conditions considered in [14], and so that the maximal operators of these Vilenkin—Nörlund means with non-increasing coefficients are not bounded from the Hardy space H 1/(1+α) to the space L 1/(1+α). In particular, this shows that the conditions under which the result in [14] is proved are in a sense sharp. Moreover, as further applications, some well-known and new results are pointed out.
