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1.
近六年《江西图书馆学刊》载文、引文及作者分析 总被引：4，自引：0，他引：4
以《江西图书馆学刊》1998～2003年载、引、被引及作情况为研究对象，分析了载的数量、栏目和所占页数，引的数量、来源、语种和年代，载被引情况以及作的单位分布和作数量，从而反映出该刊近六年的栽情况及学术影响。 相似文献
2.
The emergence of China as a leading nation in science 总被引：4，自引：0，他引：4
China has become the fifth leading nation in terms of its share of the world's scientific publications. The citation rate of papers with a Chinese address for the corresponding author also exhibits exponential growth. More specifically, China has become a major player in critical technologies like nanotechnology. Although it is difficult to delineate nanoscience and nanotechnology, we show that China has recently achieved a position second only to that of the USA. Funding for R&D has been growing exponentially, but since 1997 even more in terms of business expenditure than in terms of government expenditure. It seems that the Chinese government has effectively used the public-sector research potential to boost the knowledge-based economy of the country. Thus, China may be achieving the (“Lisbon”) objectives of the transition to a knowledge-based economy more broadly and rapidly than its western counterparts. Because of the sustained increase in Chinese government funding and the virtually unlimited reservoir of highly skilled human resources, one may expect a continuation of this growth pattern in the near future. 相似文献
3.
《Journal of Informetrics》2020,14(1):100988
This paper proposes a simple, flexible, axiom-based mechanism for facilitating the comparison between a scholar's citation count and the visibility of the journals wherein the scholar's articles were published. The goal is to help research review bodies easily grasp the distinction these two forms of scholarly accomplishment and to provide a transparent way to articulate expectations about them to scholars. The approach is demonstrated using a widely applied and cooperative functional form that can reflect, via different parameter values, a wide range of possible beliefs about the relative merits of citation counts and journal visibility. 相似文献
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In the recent debate on the use of averages of ratios (AoR) and ratios of averages (RoA) for the compilation of field-normalized citation rates, little evidence has been provided on the different results obtained by the two methods at various levels of aggregation. This paper provides such an empirical analysis at the level of individual researchers, departments, institutions and countries. Two datasets are used: 147,547 papers published between 2000 and 2008 and assigned to 14,379 Canadian university professors affiliated to 508 departments, and all papers indexed in the Web of Science for the same period (N = 8,221,926) assigned to all countries and institutions. Although there is a strong relationship between the two measures at each of these levels, a pairwise comparison of AoR and RoA shows that the differences between all the distributions are statistically significant and, thus, that the two methods are not equivalent and do not give the same results. Moreover, the difference between both measures is strongly influenced by the number of papers published as well as by their impact scores: the difference between AoR and RoA is greater for departments, institutions and countries with low RoA scores. Finally, our results show that RoA relative impact indicators do not add up to unity (as they should by definition) at the level of the reference dataset, whereas the AoR does have that property. 相似文献
6.
Brenda I. Rowe Wesley S. McCann Craig Hemmens 《Journal of Criminal Justice Education》2013,24(4):551-576
This study assesses the authorship of legal scholarship within 20 criminology and criminal justice (CCJ) journals from 2005 to 2015, examining trends over time and variation across journals in the prevalence of sole-authorship and the mean number of authors and identifying the most prolific authors of legal scholarship published in CCJ journals. The study thus sheds light on the extent of collaboration among CCJ legal scholars and identifies CCJ legal scholars who have remained largely invisible due to their focus on a marginalized subfield. 相似文献
7.
Anastassios Pouris 《Higher Education》2007,54(4):501-509
This article reports the results of an investigation to identify the disciplinary strengths and the international standing
of the higher education institutions in South Africa. Even though comparative assessments provide valuable information for
research administrations, researchers and students such information is not available in South Africa currently. The Essential
Science Indicators database of the Institute for Scientific Information is utilized for the investigation and six South African
universities are identified to be included in the top 1% of the world’s institutions cited in the international scientific
literature. The identified institutions are University of Cape Town, University of Pretoria, Orange Free State University,
University of Witwatersrand, University of Natal and University of Stellenbosch. Analysis of the scientific disciplines in
which the South African institutions meet the threshold requirements for inclusion in the database shows that the country
has citation footprints in only nine of the 22 broad scientific disciplines. The article identifies the international standing
of the South African universities in the various scientific disciplines, and elaborates on the consequences relevant to higher
education and science and technology policy. 相似文献
8.
引文分析是指采用各种数理统计和逻辑方法对文献的引用频率、模式和图像进行计量研究。该文综述2009年以来国外在引文分析的基础理论、研究方法、研究前沿探测应用、引文指标四个方面的研究进展。 相似文献
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《Journal of Informetrics》2014,8(4):951-962
In this study, we identified and analyzed characteristics of top-cited single-author articles published in the Science Citation Index Expanded from 1991 to 2010. A top-cited single-author article was defined as an article that had been cited at least 1000 times from the time of its publication to 2012. Results showed that 1760 top-cited single-author articles were published in 539 journals listed in 130 Web of Science categories between 1901 and 2010. The top productive journal was Science and the most productive category was multidisciplinary physics. Most of the articles were not published in high-impact journals. Harvard University led all other institutions in publishing top-cited single-author articles. Nobel Prize winners contributed 7.0% of articles. In total, 72 Nobel Prize winners published 124 single-author articles. Single-authored papers published in different periods exhibited different patterns of citation trends. However, top-cited articles consistently showed repetitive peaks regardless of the time period of publication. “Theory (or theories)” was the most frequently appeared title word of all time. Leading title words varied at different time periods, and only five title words, method(s), protein(s), structure(s), molecular, and quantum consistently remained in the top 20 in different time periods. 相似文献
10.
《Journal of Informetrics》2014,8(3):478-485
Most current h-type indicators use only a single number to measure a scientist's productivity and impact of his/her published works. Although a single number is simple to calculate, it fails to outline his/her academic performance varying with time. We empirically study the basic h-index sequence for cumulative publications with consideration of the yearly citation performance (for convenience, referred as L-Sequence). L-Sequence consists of a series of L factors. Based on the citations received in the corresponding individual year, every factor along a scientist's career span is calculated by using the h index formula. Thus L-Sequence shows the scientist's dynamic research trajectory and provides insight into his/her scientific performance at different periods. Furthermore, L∝, summing up all factors of L-Sequence, is for the evaluation of the whole research career as alternative to other h-index variants. Importantly, the partial factors of the L-Sequence can be adapted for different evaluation tasks. Moreover, L-Sequence could be used to highlight outstanding scientists in a specific period whose research interests can be used to study the history and trends of a specific discipline. 相似文献