Relationship among research collaboration, number of documents and number of citations. A case study in Spanish computer science production in 2000-2009.

This paper analyzes the relationship among research collaboration, number of documents and number of citations of computer science research activity. It analyzes the number of documents and citations and how they vary by number of authors. They are also analyzed (according to author set cardinality) under different circumstances, that is, when documents are written in different types of collaboration, when documents are published in different document types, when documents are published in different computer science subdisciplines, and, finally, when documents are published by journals with different impact factor quartiles. To investigate the above relationships, this paper analyzes the publications listed in the Web of Science and produced by active Spanish university professors between 2000 and 2009, working in the computer science field. Analyzing all documents, we show that the highest percentage of documents are published by three authors, whereas single-authored documents account for the lowest percentage. By number of citations, there is no positive association between the author cardinality and citation impact. Statistical tests show that documents written by two authors receive more citations per document and year than documents published by more authors. In contrast, results do not show statistically significant differences between documents published by two authors and one author. The research findings suggest that international collaboration results on average in publications with higher citation rates than national and institutional collaborations. We also find differences regarding citation rates between journals and conferences, across different computer science subdisciplines and journal quartiles as expected. Finally, our impression is that the collaborative level (number of authors per document) will increase in the coming years, and documents published by three or four authors will be the trend in computer science literature.

Flows of knowledge from universities and federal laboratories: Modeling the flow of patent citations over time and across institutional and geographic boundaries

The extent to which new technological knowledge flows across institutional and national boundaries is a question of great importance for public policy and the modeling of economic growth. In this paper we develop a model of the process generating subsequent citations to patents as a lens for viewing knowledge diffusion. We find that the probability of patent citation over time after a patent is granted fits well to a double-exponential function that can be interpreted as the mixture of diffusion and obsolescense functions. The results indicate that diffusion is geographically localized. Controlling for other factors, within-country citations are more numerous and come more quickly than those that cross country boundaries.

Evidence-based editing: factors influencing the number of citations in a national journal

Purpose: Citations received by papers published within a journal serve to increase its bibliometric impact. The objective of this paper was to assess the influence of publication language, article type, number of authors, and year of publication on the citations received by papers published in Gaceta Sanitaria, a Spanish-language journal of public health. Methods: The information sources were the journal website and the Web of Knowledge, of the Institute of Scientific Information. The period analyzed was from 2007 to 2010. We included original articles, brief original articles, and reviews published within that period. We extracted manually information regarding the variables analyzed and we also differentiated among total citations and self-citations. We constructed logistic regression models to analyze the probability of a Gaceta Sanitaria paper to be cited or not, taking into account the aforementioned independent variables. We also analyzed the probability of receiving citations from non-Spanish authors. Results: Two hundred forty papers fulfilled the inclusion criteria. The included papers received a total of 287 citations, which became 202 when excluding self-citations. The only variable influencing the probability of being cited was the publication year. After excluding never cited papers, time since publication and review papers had the highest probabilities of being cited. Papers in English and review articles had a higher probability of citation from non-Spanish authors. Conclusions: Publication language has no influence on the citations received by a national, non-English journal. Reviews in English have the highest probability of citation from abroad. Editors should decide how to manage this information when deciding policies to raise the bibliometric impact factor of their journals.

The building laws of the City of New York : as enacted in the building code by the Municipal Assembly... also annotations and citations of judicial decisions /

Cover title: Morgan's building laws indluding the new building code annotated.

Accredited citations in Ristoro d'Arezzo's Composizione del mondo: a study of sources ...

Thesis (Ph. D.) - John Hopkins University, 1911.

Biotechnology in agriculture, 1986-May 1992 : citations from AGRICOLA concerning diseases and other environmental considerations /

"August 1992."

Revue rétrospective recueil de pièces intéressantes et de citations curieuses.

"Uniquement consacrée à la reproduction de pièces rares et intéressantes pour l'histoire du XVIIIe siècle."

The complete guide for township officers : containing all the sections of the revised statutes of Ohio applicable to township affairs, with forms and citations for the guidance of township officers /

Includes index.

A selection of cases on the law of partnership, with notes and citations,

Mode of access: Internet.

Federal register citations pertaining to the regulation of asbestos /

Mode of access: Internet.

Laramie River litigation; a compilation of opinions and decrees of the United States Supreme Court and opinions, decrees and orders of the Colorado Supreme Court and of the District Court of Larimer County, Colorado, together with chronology, citations of opinions and decrees and a summary statement.

Mode of access: Internet.

Memoires pour servir a l'histoire ecclesiastique des six premiers siecles : justifiez par les citations ... : tome second : qui comprend les disciples de nostre seigneur, [et] des Apostres /

Mode of access: Internet.

Memoires pour servir a l'histoire ecclesiastique des six premiers siecles : justifiez par les citations ... : tome premier : qui contient les tems de nostre seigneur, [et] des Apostres /

Contiene: Dissertation sur ce que raconte Hegefippe de S. Jacque Evêque de Jerusalem / Arnauld.

Memoires pour servir a l'histoire ecclesiastique des six premiers siecles : justifiez par les citations ... : tome troisieme : qui comprend depuis l'an 177 jusqu'en 253 /

Mode of access: Internet.

Memoires pour servir a l'histoire ecclesiastique des six premiers siecles : justifiez par las citations des auteurs originaux ... : tome cinquieme : qui comprend la persecution de Diocletien, celle de Licinius, & les martyrs dont on ignore l'epoque /

Mode of access: Internet.