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1.
Jiri Vanecek 《Scientometrics》2008,77(2):345-360
We have compared bibliometric data of Czech research papers generated from 1994 to 2005 with papers from six other EU countries:
Austria, Hungary, Poland, Finland, Ireland and Greece. The Czech Republic ranked the fifth in number of papers per thousand
inhabitants and the sixth in number of citations/paper. Relatively the most cited were Czech papers from fields Engineering
and Mathematics ranking the third, and Computer Science, Environment/Ecology and Molecular Biology ranking the fourth among
7 EU countries. Our analysis indicates that Czech research is lagging behind the leading EU countries, but its output is proportional
to the R&D expenses. 相似文献
2.
Summary Homeopathy has been applied to clinical use since it was first presented 200 years ago. The use of the bibilometric analysis technique for examining this topic does not exist in the literature. The objective of this study is to conduct a bibliometric analysis of all homeopathy-related publications in Science Citation Index (SCI). A systematic search was performed using the SCI for publications during the period of 1991 to 2003. Selected documents included Homoeopathy, Homoeopathic, Homeopathy, or Homeopathic as a part of the title, abstract, or keywords. Analyzed parameters included authorship, patterns of international collaboration, journal, language, document type, research address, number of times cited, and reprint authors address. Citation analysis was mainly based on the impact factor as defined by the Journal Citation Reports (JCR) and on citations per publications (CPP), which is used to assess the impact relative to the entire field and is defined as the ratio between the average numbers of citations per publications in a certain period. Of total articles, 49% had a single author. The UK, the US, and Germany produced 71% of the total output, while European countries as a whole also contributed 65% of the total share of independent publications. English remains the dominant language, it comprised only 76%, while German contributed 18%, and the remaining where distributed among 8 European languages. More document types and languages, and fewer pages have appeared in homeopathy research. 3.5% of papers were cited more than 10 times in three years after publication, and 60% were never cited. Small-group collaboration was a popular method as co-authorship. The top 3 ranking countries of publication were the UK, the US, and Germany. The US dominated citation followed by the UK, and then Germany. In addition, a simulation model was applied to describe the relationship between the cumulative number of citations and the paper life. 相似文献
3.
The objective of this study is to conduct a bibliometric analysis of all biological invasions-related publications in the
Science Citation Index (SCI) from 1991 to 2007. The indicator citation per publication (CPP) was used to evaluate the impact
of articles, journals, and institutions. In the 3323 articles published in 521 journals, 7261 authors from 1905 institutions
of 100 countries participated. As the most productive country of biological invasions research, the US will benefit from more
collaboration between institutions, countries, and continents. In addition, analysis of keywords was applied to reveal research
trends. 相似文献
4.
A keyword analysis was applied in this work to evaluate research trends of DDT (1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane) papers published between 1991 and 2005 in any journal of all the subject categories of the Science Citation
Index compiled by ISI (Institute for Scientific Information, Philadelphia, USA). DDT was used as a keyword to search parts
of titles, abstracts, or keywords. The published output analysis showed that DDT research steadily increased over the past
15 years and the annual publication output in 2005 was about twice that of 1991. The two peaks in 1997 and 2000 were closely
related to two new research fields on DDT, namely the endocrine disruption and the persistent organic pollutants (POPs). A
paper entitled “Persistent DDT metabolite p,p’-DDE is a potent androgen receptor antagonist” published in 1995 in Nature by Kelce et al. firstly discovered DDT’s toxicity for humans. As a result, public concerns regarding DDT ballooned and now
play a key role in DDT research. Keyword analysis indicated that the research interest changed remarkably from 1991 to 2005.
“Endocrine disruption” was one of the most frequently used author keywords in the period between 2002 and 2005 whilst it did
not appear before 1997. The new conception of POPs showed the same trend. The whole paper published by India and Mexico ranked
at 6th and 13th. That showed that DDT research is often related with DDT’s risk and benifits to humans. 相似文献
5.
Bibliometric analysis of biotechnology 总被引:1,自引:0,他引:1
Robert Dalpé 《Scientometrics》2002,55(2):189-213
Although Derwent Biotechnology Abstractshas been used in a variety of bibliometric studies, it has never undergone a systematic examination of its reliability and validity. The objective of this paper is to assess its quality for bibliometric studies attempting to analyse the evolution of biotechnology research, to map leading organizations, and to study the interaction between science and technology. The first part reviews the tools used in bibliometric studies of biotechnology and describes the Derwent Biotechnology Abstracts database. The second part is a case study of plant genetic research, with special emphasis on Canada. 相似文献
6.
Bibliometric analysis of tsunami research 总被引:3,自引:0,他引:3
The use of the bibilometric analytical technique for examining tsunami research does not exist in the literature. The objective
of the study was to perform a bibliometric analysis of all tsunami-related publications in the Science Citation Index (SCI).
Analyzed parameters included document type, language of publication, publication output, authorship, publication patterns,
distribution of subject category, distribution of author keywords, country of publication, most-frequently cited article,
and document distribution after the Indonesia tsunami. The US and Japan produced 53% of the total output where the seven major
industrial countries accounted for the majority of the total production. English was the dominant language, comprising 95%
of articles. A simulation model was applied to describe the relationship between the number of authors and the number of articles,
the number of journals and the number of articles, and the percentage of total articles and the number of times a certain
keyword was used. Moreover the tsunami publication patterns in the first 8 months after the Indonesia tsunami occurred on
26 December 2004 indicated a high percentage of non-article publications and more documents being published in journals with
higher impact factors. 相似文献
7.
In accordance with high incidence of AIDS cases, there is an epidemic growth of its literature. This unprecedented growth of literature calls for serious scientometric study. Such a study will not only help the scientometrists, information scientists, but also will be very useful to the related research workers. With this in view an attempt has been made to analyse AIDS literature published during the period 1976–1986 to identify its international channel of communication, medium of communication, contributing countries, authorship trends etc. This study is based on data printed in a source document entitledCollected Papers on AIDS Research, 1976–1986 published by BIOSIS which is a retrospective bibliography incorporating valuable references to research on AIDS from 9,000 source titles monitored in BIOSIS data base. The findings of this study have also been compared to those ofWyatt andSelf, Filardo andLancaster.Dedicated to the memory of Michael J. Moravcsik 相似文献
8.
《纳米技术与精密工程》2019,(2)
Manufacturing is the primary industry promoting economic and social development. For the past 30 years, the global trends of preciseness and device miniaturisation have promoted manufacturing to the micro(μ) and nano(η) scale. Identification of the most promising micro-nano manufacturing technologies(MNMT) is of interest to industry, academia and private and national science investing foundations. Considering the exponential broadening of the research area and an enormous volume of literature, providing an overview of the state of the art is far beyond the scope of a technical review paper. This study performs bibliometric analysis of a stream of academic literature devoted to μ-and η-machining. The main goals of the analysis are to assess the current core and trends in the field of MNMT. Literature and citation statistics from 1988 were collected from the Web of Science, Google Scholar, Scopus, Engineering Village, Science Direct and Springer Link databases and were then analysed and illustrated with Microsoft Excel and VOSviewer software. The top keywords, articles, journals, authors, universities and countries were identified according to different parameters. The index of normalised influence was offered to evaluate the top element in each category. We observed that the most powerful keywords were present in well-known articles published in prominent journals by authoritative scientists at leading universities in the countries that are most actively engaged in MNMT. The implications of the research outcomes for investors and academicians are summarised in the conclusion. 相似文献
9.
A bibliometric analysis was performed to assess the quantitative trend of Patent Ductus Arteriosus (PDA) treatment research,
including intravenous injection of indomethacin and surgery. The documents studied were retrieved from the Science Citation Index (SCI) for the period from 1991 to 2002. The publication pattern concerning authorship, collaboration, original countries,
citation frequency, document type, language of publication, distribution of journals, page count and the most frequently cited
papers were performed. The results indicated that either treatment was not the recent emphasis of PDA research. The publishing
countries of both treatments have also denoted that these researches were mostly done in Europe and North America. Both surgery
and drug treatments had few international collaboration papers. English was the dominant language, and collaboration of two
to six authors was the most popular level of co-authorship.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
10.
In this study we present an analysis of the research trends in Pakistan in the field of biotechnology for the period 1980–2011. Starting with just 15 publications in 1980 with a negligible annual growth rate for the initial 15 years, the number of publications reached 3,273 in 2011 with an annual growth rate of 22 % for the last 15 years. This growth in publications is studied through factors such as Relative Growth Rate and Doubling Time. A comparison of organizations actively engaged in research in biotechnology is made through factors such as their total publications, total citations, and average citations per paper and indices that determine the quality of publications like h-index, g-index, hg-index and p-index. University of Karachi shows the highest number of publications (2,698), while National Institute of Biotechnology and Genetic Engineering with fewer publications shows the highest average citation per paper (8.07). Agha Khan University however, shows the highest h, g, hg and p indices. 相似文献
11.
Bibliometric analysis of AIDS literature in Central Africa 总被引:1,自引:0,他引:1
The purpose of this paper is to present the preliminary results of a bibliometric analysis of AIDS documents as produced on
Sub-Saharan Africa. AIDSLINE 1980-2000 was used to conduct the literature search. In this paper, an analysis was made only
of the records retrieved under "Central Africa". Bibexcel (version 2001) and Microsoft Excel (2000) were used as software
tools to conduct the analysis of the records. Seven countries and 1052 records were identified. Main participating countries
were Democratic Republic of the Congo (527 documents), and Cameroon (271). Results indicated a high pattern of collaboration
through multiple authorship. Most documents were published in English (84.50%) and French (14.73%). Over 57% corresponded
to journal articles. The subject content of the documents was mainly focused on epidemiological, complications, and prevention
& control issues on ‘HIV Infections’ and ‘Acquired Immunodeficiency Syndrome’. Countries behind this productivity were Cameroon,
USA, Democratic Republic of the Congo, France, and Belgium. Comparison of results among Central African countries and among
other developing countries is made by the authors.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
12.
To justify public investment in R&D activities especially those conducted by private companies, the effect to change their
behavior into what could not be realized without public funds is required. This paper studies the "additionality" of Japanese
R&D programmes by analyzing the patent applications of five case study projects. Changes and continuations in research themes
between the results of the project and the results in five years before and after the project were measured using a similarity
index. Also, the similarities between research groups in a project were measured. These show how each project was constituted
by researchers with various types of knowledge. As a result, although all projects contained core research groups who continued
their research in the project, the effect of mobilizing other researchers into new fields was shown to vary depending on the
characteristics of the projects.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
13.
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:
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. 相似文献
(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. |
14.
C. A. Macias-Chapula Irma P. Rodea-Castro Nora Narvaez-Berthelemot 《Scientometrics》1998,41(1-2):41-49
This work reports on the preliminary results of a bibliometric analysis of AIDS literature, as produced in or about Latin
America and the Caribbean for the period 1980–1996. Two international and two regional secondary sources were used in order
to obtain comparative analyses regarding for example, comprehensiveness of AIDS literature coverage and local/main frame visibility.
Less than 1000 records were retrieved from each of the databases searched. Leading countries in AIDSLINE were Haiti, Brasil,
Mexico and Puerto Rico. The distribution by year of publication showed a decrease in Haiti records, from 54 in 1983, to 4
in 1995. The rest of the countries either increased or maintained an average production throughout the years. Regional secondary
information sources were less current and comprehensive in the field. Further lines of research are described by the authors. 相似文献
15.
16.
Abdeljaoued Emna Brulé Mathieu Tayibi Saida Manolakos Dimitris Oukarroum Abdallah Monlau Florian Barakat Abdellatif 《Clean Technologies and Environmental Policy》2020,22(10):1967-1997
Clean Technologies and Environmental Policy - Biochar has caught great attention over the last decade, yielding a large number of publications in a broad range of disciplines. This scientometric... 相似文献
17.
Bibliometric analysis of Severe Acute Respiratory Syndrome-related research in the beginning stage 总被引:1,自引:0,他引:1
Severe Acute Respiratory Syndrome (SARS) has become the major of health issues since its outbreak early 2003. No analyses
by bibliometric technique that have examined this topic exist in the literature. The objective of this study is to conduct
a bibliometric analysis of all SARS-related publications in Science Citation Index (SCI) in the early stage. A systematic search was performed using the SCI for publications since SARS outbreak early 2003.
Selected documents included 'severe acute respiratory syndrome' or 'SARS' as a part of its title, abstract, or keyword from
the beginning stage of SARS outbreak, March till July 8, 2003. Analysis parameters included authorship, patterns of international
collaboration, journals, language, document type, research institutional address, times cited, and reprint address. Citation
analysis was mainly based on impact factor as defined by Journal Citation Reports(JCR) issued in 2002 and on the actual citation impact (ACI), which has been used to assess the impact relative to the whole
field and has been defined as the ratio between individual citation per publication value and the total citation per publication
value. Thirty-two percent of total share was published as news features, 25% as editorial materials, 22% as articles, 13%
as letters, and the remaining being biographic items, corrections, meeting abstracts, and reprints. The US dominated the production
by 30% of the total share followed closely by Hong Kong with 24%. Sixty-three percent of publication was published by the
mainstream countries. The SARS publication pattern in the past few months suggests immediate citation, low collaboration rate,
and English and mainstream country domination in production. We observed no associations of research indexes with the number
of cases.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
18.
A review of atmospheric fine particulate matter and its associated trace metal pollutants in Asian countries during the period 1995-2005 总被引:1,自引:0,他引:1
Many studies have monitored atmospheric particulates and gaseous phases of PM(2.5) in Asia over the past 10 years. This work also compared and discussed different sample collection, pretreatment and analytical methods in Asia countries in past decade. The results indicated that the main PM(2.5) sources are traffic exhausts. PM(2.5) concentrations are also ranked highest in the areas of traffic, followed by the urban sites, and lowest in rural sites in Asian countries. This work elucidates the sources, analytical tools, and the average concentrations for PM(2.5) and related metallic elements during 1995-2005. The results indicated that the average highest concentrations order of metallic elements for PM(2.5) were Fe>Mg>Zn, and the average concentrations of lowest metallic elements was Pb>Cu>Mn>Cr>Cd. The results also indicated that the concentration of metallic element Cu increased as the averaged concentrations of metallic element Zn and Mn increased during the past 10 years in Asian countries. 相似文献
19.
Risk assessment and minimisation of environmental hazards are critical issues to consider in the geotechnical engineering projects. A case of highway pavement seepage induced by groundwater, at a locality along the section of Hua-Qing Highway of Guangdong Province, China, is presented for environmental hazard analysis and effective remediation. The environmental hazard analyses were based on in situ hydrogeologic investigation, rock-soil testing and integrated environmental understanding. The analyses indicate that the highway seepage was caused by elevation of groundwater hydraulic pressure in low permeable strata near the highway pavement, which was controlled by landform, hydrology, weather and road structure. The risk source of groundwater 'flooding' was the groundwater and surface water in the ring-like valley around Fenshui Village. A blind-ditch system for effective remediation of the pavement seepage hazard was proposed and successfully implemented by declining groundwater table near the highway based on the comprehensive assessment of various conditions. This geotechnical accident shows that the role of groundwater is an essential factor to consider in the geotechnical and environmental engineering studies and multidisciplinary effort for risk assessment of environmental hazards is important under current global climate change condition. 相似文献
20.
This paper develops the optimal periodic preventive maintenance policies following the expiration of warranty. We consider two types of warranty policies to discuss such optimum maintenance policies: renewing warranty and non-renewing warranty. From the user's perspective, the product is maintained free of charge or with prorated cost on failure during the warranty period. However, the users will have to repair or replace the failed product at their own expenses during the post-warranty period. Given the cost structure to the user during the cycle of the product, we derive the expressions for the expected maintenance costs for the periodic preventive maintenance following the expiration of warranty when applying two types of warranty policies and obtain the optimal number and the optimal period for such post-warranty maintenance policies by minimizing the expected long-run maintenance cost per unit time. Explicit solutions for the optimal periodic preventive maintenance are presented for illustrative purposes. 相似文献