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Abstract  

This paper studies the main bibliometric figures in order to analyse the "states of the art" and the evolution of research in physics in Catalonia (Spain) between 1981 and 1998 via the National Citation Report (NCR) for Catalonia elaborated by ISI (Institute for Scientific Information). The main indicators and parameters used are: bibliometric size, rate of citation, citedness of papers, concentration of scientific categories, journals and types of paper, index of immediacy, international collaboration, and papers and citation distribution by research centres and universities.

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I studied the publication efforts in physics in Egypt, Iran, Iraq, Jordan, Saudi Arabia, Syria, and Turkey in terms of a total number of 2368 papers from these countries in international journals for 1990–1994. I looked for the national contributions, main subjects of activity, journal preferences of authors, and co-authorship patterns. Comparisons show that physicists from Egypt and Turkey combined, produced 75% of the total publication output. Half of the Egyptian papers went only to 16% of a set of 115 journals that publish papers from this country. Such a high concentration of papers in a few journals was not the case for the rest of the countries. Condensed matter physics was found to be among the three most active subjects for the countries except Iran. Iranian authors tended to be more active in astrosciences, and nuclear science and technology. I found a change in the publication patterns of the Middle Eastern physicists in the direction of decreasing isolation and increasing collaboration.

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A bibliometric study based on the analysis of six Ph. D. thesis in economics. In this study the methodology is based on the distinction we made between two different information sources in each thesis:(1)  the bibliography cited either at the end or at the beginning of the thesis; it represents the stock of useful or necessary publications; (2)  the citations appearing in each dissertations as a whole; it determines the extent to which the stock is used, because it shows how many times a publication cited in the bibliography is cited in the thesis itself. The results concern the ratio number of titles/authors, the journal/monograph proportion, languages allocation, study of obsolescence. In the bibliography, 95% of books and articles are less than 30 years old. In the citations, articles and 95% of books are less than 20 years old.

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This work reports the first results of a research in progress on the production, dissemination and impact of the literature on primary health care (PHC), as produced in Mexico during the period 1980–1992. The methodology used involved computerized searches in the MEDLINE, LILACS, and PERIODICA databases to identify the existing Mexican literature in the field. Results indicated a limited dissemination of the Mexican production through conventional databases. A total of 117 references were found in the field. Most of these references (72.65%) corresponded to journal articles. Over 55% of the documents were published by more than one author. Further research in the field as well as the implications of these results to PHC in Mexico are discussed by the author.

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text mining software was used for cleaning and subsequent bibliometric analysis. The final dataset contained 43,767 Chinese nanotechnology records covering the period 1990 through to mid-2006. Standardization of records

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official documents and webpages. Rankings are intended to provide a measure of academic excellence, but rankings are far from perfect, as discussed by Van Raan ( 2005 ), who criticises shortcomings of bibliometric analysis, irrelevant indicators

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large-scale data, carry out the immediate partition, automatically optimize the cluster and provide a hierarchical system in practically one process and in an very short time. Because of the close relationship between bibliometric analysis and Web mining

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The paper analyses the output of the publication data of an Indian laboratory in the field of physics inSCI and nonSCI covered Indian and foreign journals, processes developed and Indian patents filed during the period 1965–82 to find out the pattern of productivity. Looks at the journals wherein the laboratory scientists publish. Also points out the sub-areas of physics in which the laboratory scientists have published maximum papers and also mentions about the pattern of scientific co-authorship in the research work. Correlation coefficients between input variable (manpower and budget) with output variables (number of papers published, processes developed and Indian patents accepted) have been calculated.

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Abstract

Research on aquaculture is expanding along with the exceptional growth of the sector and has an important role in supporting even further the future developments of this relatively young food production industry. In this paper we examined the aquaculture literature using bibliometrics and computational semantics methods (latent semantic analysis, topic model and co-citation analysis) to identify the main themes and trends in research. We analysed bibliographic information and abstracts of 14,308 scientific articles on aquaculture recorded in Scopus. Both the latent semantic analysis and the topic model indicate that the broad themes of research on aquaculture are related to genetics and reproduction, growth and physiology, farming systems and environment, nutrition, water quality, and health. The topic model gives an estimate of the relevance of these research themes by single articles, authors, research institutions, species and time. With the co-citation analysis it was possible to identify more specific research fronts, which are attracting high number of co-citations by the scientific community. The largest research fronts are related to probiotics, benthic sediments, genomics, integrated aquaculture and water treatment. In terms of temporal evolution, some research fronts such as probiotics, genomics, sea-lice, and environmental impacts from cage aquaculture, are still expanding while others, such as mangroves and shrimp farming, benthic sediments, are gradually losing weight. While bibliometric methods do not necessarily provide a measure of output or impact of research activities, they proved useful for mapping a research area, identifying the relevance of themes in the scientific literature and understanding how research fronts evolve and interact. By using different methodological approaches the study is taking advantage of the strengths of each method in mapping the research on aquaculture and showing in the meantime possible limitations and some directions for further improvements.

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The examination of three samples of geological scientific publications: (A) 9 journals from Western Europe and USA; (B) 10 up-to-date review books, and (C) 3 sections of Volume 127 (1990–1991) of theZoological Record, shows that the statement that English is now the lingua franca in geological sciences is only in part true, but reflects a desire by many people in the scientific community, a desire which may not yet have been fulfilled

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