Scatter and obsolescence of journals cited in theses and dissertations of librarianship

This article analyzes the bibliometric features (the number of pages, completion years, the fields of subject, the number of citations, and their distribution by types of sources and years) of 100 theses and dissertations completed at the Department of Librarianship of Hacettepe University between 1974 and 2002. Almost a quarter (24%) of all dissertations were on university libraries, followed by public libraries (9%). Doctoral dissertations were, on average, twice as long as master's theses and contained 2.5 times more citations. Monographs received more citations (50%) than journal articles did (42%). Recently completed theses and dissertations contained more citations to electronic publications. Fourteen (or 3.2% of all) journal titles (including Türk Kütüphaneciliği, College & Research Libraries, and Journal of the American Society for Information Science) received almost half (48.9%) of all citations. Eighty percent of journal titles were cited infrequently. No correlation was found between the frequency of citations of the most frequently cited journals and their impact factors. Cited journal titles in master's and doctoral theses and dissertations overlapped significantly. Similarly, journal titles cited in dissertations also overlapped significantly with those that were cited in the journal articles published in the professional literature. The distribution of citations to foreign journal titles fit Bradford's Law of Scattering. The mean half-life of all cited sources was 9 years. Sources cited in master's dissertations were relatively more current. Single authorship was the norm in cited resources. Coupled with in-library use data, findings of the present study can be used to identify the core journal titles in librarianship as well as to evaluate the existing library collections to decide which journal titles to keep, discard, or relegate to off-site storage areas.     

Different mysteries,different lore: An examination of inherited referencing behaviors in academic mentoring

Library and information science (LIS) dissertations cite a wide variety of literature, reflecting the interdisciplinary nature of the field. A review of 76 LIS dissertations was undertaken to determine whether the disciplinary background of the dissertation adviser influences the citing behaviors of the dissertation author. Of the 76 dissertations, 38 were advised by individuals with a disciplinary background in LIS and 38 were advised by individuals with a disciplinary background outside of LIS. The Library of Congress subclass for each citation was determined according the venue of publication. The most cited authors overall and by each group were determined, as well as the percentage of citations to LIS literature over time. LIS-advised dissertations were found to have cited a wide variety of literature. The percentage of citations in LIS-advised dissertations to LIS literature has declined from a peak of 59% to 21%. Citations to the most-cited authors in each group were largely exclusive to the LIS-advised dissertations, and nonLIS-advised dissertations generally do not appear to cite the same bodies of academic literature.     

Information Transfer in Articles About Libraries and Student Success

Connecting academic libraries to the higher education environment is crucial for demonstrating the impact of libraries on student success. The purpose of this study is to examine the information transfer between the disciplines of library and information science (LIS) and higher education in order to evaluate the influence of ideas between the two disciplines. Information transfer was analyzed in 39 articles focused on the library's contributions to student success by examining the cited references, the author and collaborator affiliations, and the forward citations. The findings from the cited reference analysis suggest that LIS is borrowing concepts and methods through citations from the discipline of education. Authorship affiliations showed that some non-LIS authors are publishing in the field of LIS and that LIS authors are collaborating with non-LIS authors. Finally, based on the forward citations, other disciplines are rarely citing LIS research about student success. This article's findings highlight the need to consider research and collaborators outside of the LIS field when researching the library's contribution to student success.     

Contributing factors to long‐term citation count in marine and freshwater biology articles

Researchers have investigated factors thought to affect the total number of citations in various academic disciplines, and some general trends have emerged. However, there are still limited data for many fields, including aquatic sciences. Using papers published in 2003–2005 (n = 785), we investigated marine and freshwater biology articles to identify factors that may contribute to the probability of citation and for cumulative citation counts over 10 years. We found no relationships with probability of citation; however, we found evidence that for those that were cited at least once, cumulative citations were related to several factors. Articles cited by books received more citations than those never cited by books, which we hypothesized to be indicative of the impact an article may have in the field. We also found that articles first cited within 2 years of publication received more cumulative citations than those first cited after 2 years. We found no evidence that self‐citation (as the first citation) had a significant effect on total citations. Our findings were compared with previous studies in other disciplines, and it was found that aquatic science citation patterns are comparable to fields in science and technology but less so to humanities and social sciences.     

Research on the Literature Guarantee Assessment of the Social Science Discipline Based on Dissertations Analysis

This paper evaluates the literature guarantee for Folklore graduate students based on their dissertations at Beijing Normal University (BNU) Library. First, it investigates related works concerning literature guarantees. Researchers collected 72 master's and 47 doctoral students' dissertations between 2011 and 2014. By building a literature guarantee hierarchy for monographs and periodicals, this study maps citations to the library collection to quantify the collection status. Findings demonstrate that nearly 81% of monograph citations, which is slightly less than periodical citations (nearly 90%), are owned by the library. In frequently cited literature, the percentage rises to 90% for both monographs and periodicals. Moreover, the literature guarantee percentage of electronic monographs (74.8%) and periodicals (87.6%) are both higher than paper editions. This study also provides suggestions to improve the literature guarantee. Finally, it points out some limitations and future direction.     

《中国图书馆学报》被引调查与分析

《中国图书馆学报》被引调查与分析王惠翔Ａｂｓｔｒａｃｔ：Ｂａｓｅｄｏｎａｎｉｎｖｅｓｔｉｇａｔｉｏｎｏｆ２３７７６ｃｉｔａｔｉｏｎｓｏｆｌｉｂｒａｒｙｓｃｉｅｎｃｅｐｅｒｉｏｄｉｃａｌｓ,ｔｈｅ＂ＪｏｕｒｎａｌｏｆｔｈｅＬｉｂｒａｒｙＳｃｉｅｎｃｅｉ...     

我国人文社会科学领域文献使用特征研究

[目的/意义] 分析各学科领域文献使用情况,可为图书馆开展信息资源采访工作和针对人才、机构等方面的科学评价工作提供数据支撑。[方法/过程] 以我国大陆地区主办的751种人文社会科学学术期刊为数据来源,以这些期刊在2004-2013年发表的131万篇论文为样本,以样本论文中著录的1 282万条参考文献为分析对象,对各学科文献使用情况进行分析。[结果/结论] 在人文社会科学领域,图书(34.03%)是使用率最高的文献类型,期刊使用率(33.95%)略低于图书使用率,其他类型文献使用率为32.02%。从学科角度看,人文学科学者偏爱使用图书,社会科学学者偏爱期刊,报纸和学位论文的使用学科差异性较小。从使用发展趋势来看,期刊、学位论文的使用率在逐年上升,图书使用率呈逐年下降趋势。     

Do females create higher impact research? Scopus citations and Mendeley readers for articles from five countries

There are known gender imbalances in participation in scientific fields, from female dominance of nursing to male dominance of mathematics. It is not clear whether there is also a citation imbalance, with some claiming that male-authored research tends to be more cited. No previous study has assessed gender differences in the readers of academic research on a large scale, however. In response, this article assesses whether there are gender differences in the average citations and/or Mendeley readers of academic publications. Field normalised logged Scopus citations and Mendeley readers from mid-2018 for articles published in 2014 were investigated for articles with first authors from India, Spain, Turkey, the UK and the USA in up to 251 fields with at least 50 male and female authors. Although female-authored research is less cited in Turkey (?4.0%) and India (?3.6%), it is marginally more cited in Spain (0.4%), the UK (0.4%), and the USA (0.2%). Female-authored research has fewer Mendeley readers in India (?1.1%) but more in Spain (1.4%), Turkey (1.1%), the UK (2.7%) and the USA (3.0%). Thus, whilst there may be little practical gender difference in citation impact in countries with mature science systems, the higher female readership impact suggests a wider audience for female-authored research. The results also show that the conclusions from a gender analysis depend on the field normalisation method. A theoretically informed decision must therefore be made about which normalisation to use. The results also suggest that arithmetic mean-based field normalisation is favourable to males.     

Cover effects on citations uncovered: Evidence from Nature

We study the effects of an article featured on the cover of the journal Nature on citations to all articles published by its authors. Based on 30 years of bibliometric data, we find that cover articles are cited significantly more than non-cover articles, with this difference being long-lasting. However, when considering all articles (past and future) by Nature authors, we find that the publication of a cover article causes citations to previous articles by its authors to decline relative to citations to articles by non-cover authors.     

Author-team diversity and the impact of scientific publications: Evidence from physics research at a national science lab

In the second half of the 20th century, scientific research in physics, chemistry, and engineering began to focus on the use of large government-funded laboratories. This shift toward so-called big science also brought about a concomitant change in scientific work itself, with a sustained trend toward the use of highly specialized scientific teams, elevating the role of team characteristics on scientific outputs. The actual impact of scientific knowledge is commonly measured by how often peer-reviewed publications are, in turn, cited by other researchers. Therefore, how characteristics such as author team seniority, affiliation diversity, and size affect the overall impact of team publications was examined. Citation information and author demographics were reviewed for 123 articles published in Physical Review Letters from 2004 to 2006 and written by 476 scientists who used the National High Magnetic Field Laboratory's facilities. Correlation analysis indicated that author teams that were more multi-institutional and had homogeneous seniority tended to have more senior scientists. In addition, the analysis suggests that more mixed seniority author teams were likely to be less institutionally dispersed. Quantile regression was used to examine the relationships between author-team characteristics and publication impact. The analysis indicated that both weighted average seniority and average seniority had a negative relationship with the number of citations the publication received. Furthermore, the analysis also showed a positive relationship between first-author seniority and the number of citations, and a negative relationship between the number of authors and the number of citations.     

Internet-based resources citation by undergraduate students

Abstract

The first and unique training centre in Library and Information Science (LIS) in Benin has been training students since 1982. Ten years after the introduction of Internet in the country, students may have been aware of the importance and the richness of its resources. To what extent do students use Internet-based resources? How do citations to Internet-based resources vary in students’ works over years? This study covers especially LIS students’ dissertations. The results show that the percentage of Internet-based resources cited in dissertations was very low until 2001. Even if the trend line shows an increase starting from 2002, Internet-based resources are very rare in the dissertations (less than 10%). A few students give references to the maximum of Internet-based resources.     

英国《文献学杂志》评析

英国《文献学杂志》评析冀红梅,林丽莹,薛美华Ａｂｓｔｒａｃｔ：６１２ａｒｔｉｃｌｅｓ．４４８７ｃｉｔａｔｉｏｎｓａｎｄ６８２ａｕｔｈｏｓｐｆｔｈｅ＂ＪｏｕｒｎａｌｏｆＤｏｃｕｍｅｎｔａｒｉｏｎ＂（１９８３－１９９２）ａｒｅａｎａｌｙｚｅｄｗｉｔｈａｒ...     

The comparative importance of books: clinical psychology in the health sciences library

Clinical psychology has received little attention as a subject in health sciences library collections. This study seeks to demonstrate the relative importance of the monographic literature to clinical psychology through the examination of citations in graduate student theses and dissertations at the Fordham Health Sciences Library, Wright State University. Dissertations and theses were sampled randomly; citations were classified by format, counted, and subjected to statistical analysis. Books and book chapters together account for 35% of the citations in clinical psychology dissertations, 25% in nursing theses, and 8% in biomedical sciences theses and dissertations. Analysis of variance indicates that the citations in dissertations and theses in the three areas differ significantly (F = 162.2 with 2 and 253 degrees of freedom, P = 0.0001). Dissertations and theses in biomedical sciences and nursing theses both cite significantly more journals per book than the dissertations in clinical psychology. These results support the hypothesis that users of clinical psychology literature rely more heavily on books than many other users of a health sciences library. Problems with using citation analyses in a single subject to determine a serials to monographs ratio for a health sciences library are pointed out.     

我国图书馆学期刊1990年的发文及引文统计分析

Twenty periodicals of China including the "Bulletin of the Library Science in China" had published in 1990 totally 100 issues of 2006 outgoing pieces and 3489 citations. From the system of outgoing pieces point of view, the college libraries were of the most (54.63%); from the point of view of administrative divisions, the East China was of the most (25.02%); from the point of view of selected topics of outgoing articles, library and information undertaking construction was of the most (10.16%) and from the point of view authors of outgoing pieces,there were 15 people who had published more than 5 pieces,among them Huang Zongzhong and Cheng Huanwen had written the most (Each had written 10 pieces).Statistics and analysis are also made by the author for the amount of citations,languages,types of documents,subjects,years,periodicals cited as well as the authors.14 tables.     

Can Google Scholar and Mendeley help to assess the scholarly impacts of dissertations?

Dissertations can be the single most important scholarly outputs of junior researchers. Whilst sets of journal articles are often evaluated with the help of citation counts from the Web of Science or Scopus, these do not index dissertations and so their impact is hard to assess. In response, this article introduces a new multistage method to extract Google Scholar citation counts for large collections of dissertations from repositories indexed by Google. The method was used to extract Google Scholar citation counts for 77,884 American doctoral dissertations from 2013 to 2017 via ProQuest, with a precision of over 95%. Some ProQuest dissertations that were dual indexed with other repositories could not be retrieved with ProQuest-specific searches but could be found with Google Scholar searches of the other repositories. The Google Scholar citation counts were then compared with Mendeley reader counts, a known source of scholarly-like impact data. A fifth of the dissertations had at least one citation recorded in Google Scholar and slightly fewer had at least one Mendeley reader. Based on numerical comparisons, the Mendeley reader counts seem to be more useful for impact assessment purposes for dissertations that are less than two years old, whilst Google Scholar citations are more useful for older dissertations, especially in social sciences, arts and humanities. Google Scholar citation counts may reflect a more scholarly type of impact than that of Mendeley reader counts because dissertations attract a substantial minority of their citations from other dissertations. In summary, the new method now makes it possible for research funders, institutions and others to systematically evaluate the impact of dissertations, although additional Google Scholar queries for other online repositories are needed to ensure comprehensive coverage.     

用中医药博士论文引文分析中医药科研人员的外文文献需求

以中国中医科学院2007—2009年的164篇中医药博士学位论文的外文引文作为研究对象,采用文献计量学方法对其外文引文的类型、数量、期刊被引年代分布、学科专业分布、语种分布、外文期刊被引频次等指标进行了统计与分析,以此了解中医药科研人员对外文文献需求的特点和规律,为图书馆资源建设和用户服务提供指南和参考。     

高校图书馆期刊文献保障实证研究——以武汉大学为例

在开放存取蓬勃发展和高校图书馆馆藏电子化的大趋势下,高校图书馆的文献保障工作如何适应新的趋势,需要深入研究。本文以武汉大学2013年被SCIE、SSCI和A&HCI所收录文章的期刊类参考文献为研究样本,采用一种针对期刊类参考文献的以年为单位的引文检查方法,匹配世界主要开放存取期刊目录以及武汉大学图书馆馆藏电子和印本期刊目录,研究当前这三类期刊对样本参考文献及来源期刊的收藏和缺藏情况。以此探讨三类期刊在高校图书馆文献资源保障中的特征与趋势,以及开放存取期刊对馆藏资源建设的影响,为高校图书馆进一步优化期刊馆藏体系和提高文献保障率提供科学依据。     

Publication and citation patterns among LIS faculty: Profiling a “typical professor”

Research on publication and citation patterns generally focuses on prolific or highly cited authors or on highly ranked programs. This study investigates the work and influence of a cross-section of library and information science (LIS) researchers at various stages of their academic lives, using a random sample of faculty members at programs accredited by the American Library Association. The analysis shows that the number of publications increases steadily as faculty rank advances. Assistant professors publish more conference papers and fewer journal articles, a pattern that is reversed with associate and full professors. Researchers used Web of Science® and Google™ Scholar to determine the influence of the publications. Web of Science reported no citations for most LIS faculty publications. With its broader scope, Google Scholar located more citations and revealed that the works of professors are cited significantly more frequently than publications by assistant or associate professors. When faculty profiles are compared by type of program, faculty members at schools granting doctoral degrees publish significantly more than their counterparts at schools where there is no doctoral program or where the doctoral degree is offered jointly with other academic units. When the comparison is made across ranks, full professors publish significantly more than faculty members at other ranks. There is no significant difference between assistant and associate professors.     

国内物理学期刊arXiv自存档论文的引用优势研究——以Frontiers of Physics期刊为例

对2008-2011年发表于Frontiers of Physics期刊上的161篇论文进行数据分析,发现13.66%的论文进行了arXiv自存档,自存档论文被引用的比率是非自存档论文的2.24倍,篇均被引频次是非自存档论文的6.06倍,高被引优势为400%,在出版者网站上其篇均下载次数比非自存档论文高约11%。建议国内物理学期刊出版者加强网站建设,在获得作者授权情况下代替作者完成arXiv自存档以及利用arXiv辅助约稿,充分利用arXiv平台提升期刊引用水平。