WorldWideScience

Sample records for program era citation

  1. A Citation Analysis of Australian Information Systems Researchers: Towards a New ERA?

    Directory of Open Access Journals (Sweden)

    Roger Clarke

    2008-05-01

    Full Text Available Citation analysis is a potentially valuable means of assessing the contributions of researchers, in Information Systems (IS as in other disciplines. In particular, a combination of raw counts and deeper analysis of citation data can deliver insights into the impact of a researcher's publications on other researchers. Despite this potential, the limited literature in the IS discipline has paid very little attention to the use of citation analysis for this purpose. Meanwhile, the federal department responsible for education funding has convinced successive federal governments to develop research quality measures that can be used as a basis for differential funding. The Howard Government's proposed Research Quality Framework (RQF has been abandoned, but a number of aspects of it survive within the Rudd Government's Excellence in Research for Australia (ERA initiative. The ERA also appears likely to involve a highly formalised process whereby 'research groupings' within individual universities will be evaluated, with (as yet unclear impacts on the distribution of research funding. Funding agencies have an interest in score-keeping, whether or not their enthusiasm is shared by Australian researchers. It is therefore highly advisable that Australian disciplines, and especially less well-established and powerful disciplines like Information Systems, achieve a clear understanding of their performance as indicated by the available measurement techniques applied to the available data. This paper reports on citation analysis using data from both the longstanding Thomson/ISI collection and the more recently developed Google Scholar service. Few Australian IS researchers have achieved scores of any great significance in the Thomson/ISI collection, whereas the greater depth available in Google Scholar provides a more realistic picture. Quality assessment of the Thomson/ISI collection shows it to be seriously inappropriate for relatively new disciplines

  2. The Programmed Instruction Era: When Effectiveness Mattered

    Science.gov (United States)

    Molenda, Michael

    2008-01-01

    Programmed instruction (PI) was devised to make the teaching-learning process more humane by making it more effective and customized to individual differences. B.F. Skinner's original prescription was modified by later innovators to incorporate more human interaction, social reinforcers and other forms of feedback, larger and more flexible chunks…

  3. Reference citation

    National Research Council Canada - National Science Library

    Brkić, Silvija

    2013-01-01

    .... This paper deals with different styles of reference citation. Special emphasis was placed on the Vancouver Style for reference citation in biomedical journals established by the International Committee of Medical Journal Editors...

  4. Bibliography. Citations Obtained through the National Library of Medicine's MEDLARS Program.

    Science.gov (United States)

    Journal of Medical Education, 1979

    1979-01-01

    Approximately 250 citations on aspects of medical education, obtained through the National Library of Medicine, are presented. Topics include accreditation, certification and licensure, continuing education, educational measurement, graduate education, specialism, students, teaching methods and materials, and undergraduate education. (JMD)

  5. Citation Behavior

    DEFF Research Database (Denmark)

    Frandsen, Tove Faber; Nicolaisen, Jeppe

    2017-01-01

    Citation frequencies are commonly interpreted as measures of quality or impact. Yet, the true nature of citations and their proper interpretation have been the center of a long, but still unresolved discussion in Bibliometrics. A comparison of 67,578 pairs of studies on the same healthcare topic......, with the same publication age (1–15 years) reveals that when one of the studies is being selected for citation, it has on average received about three times as many citations as the other study. However, the average citation-gap between selected or deselected studies narrows slightly over time, which fits...

  6. Citation Success

    DEFF Research Database (Denmark)

    Vaio, Gianfranco Di; Waldenström, Daniel; Weisdorf, Jacob Louis

    2012-01-01

    This study examines the determinants of citation success among authors who have recently published their work in economic history journals. Besides offering clues about how to improve one's scientific impact, our citation analysis also sheds light on the state of the field of economic history....... Consistent with our expectations, we find that full professors, authors appointed at economics and history departments, and authors working in Anglo-Saxon and German countries are more likely to receive citations than other scholars. Long and co-authored articles are also a factor for citation success. We...... find similar patterns when assessing the same authors' citation success in economics journals. As a novel feature, we demonstrate that the diffusion of research — publication of working papers, as well as conference and workshop presentations — has a first-order positive impact on the citation rate....

  7. Citation Success

    DEFF Research Database (Denmark)

    Di Vaio, Gianfranco; Waldenström, Daniel; Weisdorf, Jacob Louis

    This study analyses determinants of citation success among authors publishing in economic history journals. Bibliometric features, like article length and number of authors, are positively correlated with the citation rate up to a certain point. Remarkably, publishing in top-ranked journals hardly...... affects citations. In regard to author-specific characteristics, male authors, full professors and authors working economics or history departments, and authors employed in Anglo-Saxon countries, are more likely to get cited than others. As a ‘shortcut' to citation success, we find that research diffusion...

  8. Citation Behavior

    DEFF Research Database (Denmark)

    Frandsen, Tove Faber; Nicolaisen, Jeppe

    2017-01-01

    Citation frequencies are commonly interpreted as measures of quality or impact. Yet, the true nature of citations and their proper interpretation have been the center of a long, but still unresolved discussion in Bibliometrics. A comparison of 67,578 pairs of studies on the same healthcare topic,...

  9. Inspection Citations

    Data.gov (United States)

    U.S. Department of Health & Human Services — Disclosure of reporting citations provide the public with a rationale for the Agency’s enforcement actions and will also help to inform public and industry...

  10. Implementation of the Spanish National Enhanced Recovery Program (ERAS) in Bariatric Surgery: A Pilot Study.

    Science.gov (United States)

    Ruiz-Tovar, Jaime; Royo, Pablo; Muñoz, José L; Duran, Manuel; Redondo, Elisabeth; Ramirez, Jose M

    2016-12-01

    The essence of Enhanced Recovery After Surgery (ERAS) programs is the multimodal approach, and many authors have demonstrated safety and feasibility in fast track bariatric surgery. According to this concept, a multidisciplinary ERAS program for bariatric surgery has been developed by the Spanish fast track group (ERAS Spain). The aim of this study was to analyze the initial implementation of this Spanish National ERAS protocol in bariatric surgery. A multicentric prospective pilot study was performed, including 125 consecutive patients undergoing bariatric surgery at 3 Spanish hospitals between January and June 2015, after the Spanish National ERAS protocol in bariatric surgery. Compliance with the protocol, morbidity, mortality, hospital stay, and readmission were evaluated. Bariatric techniques performed included 68 Roux-en-Y gastric bypass (54.4%) and 57 laparoscopic sleeve gastrectomy (45.6%) cases. All surgeries were laparoscopically performed with conversion in only 1 case (0.8%). Median postoperative pain evaluated by visual analogic scale 24 hours after surgery was 2 (range, 0 to 5). Postoperative nausea or vomiting appeared in 7 patients (5.6%). Complications appeared in 6 patients (4.8%). The reoperation rate was 4%. The mortality rate was 0.8%. The median hospital stay was 2 days (range, 2 to 10 d) and readmission rate was 2.4%. The compliance of all the items of the protocol was achieved in 78.4% of the patients. The Spanish National ERAS protocol is a safe issue with a high implementation rate. It can be recommended to establish this protocol to other institutions.

  11. Outcome of Laparoscopic Gastric Bypass (LRYGB) with a Program for Enhanced Recovery After Surgery (ERAS).

    Science.gov (United States)

    Hahl, Tilda; Peromaa-Haavisto, Pipsa; Tarkiainen, Pekka; Knutar, Otto; Victorzon, Mikael

    2016-03-01

    Enhanced recovery after surgery (ERAS) programs are well established for patients undergoing colorectal surgery. Relatively little is known about ERAS following bariatric surgery in general or following laparoscopic Roux-en-Y gastric bypass (LRYGB) in particular. This is a prospective, observational study of 388 consecutive patients that underwent LRYGB with ERAS in a general hospital. The ERAS protocol included standardizations of pre-, intra-, and postoperative modalities in order to reduce the stress response of the patients. Primary outcome measures were length of stay (LOS), postoperative morbidity, readmissions, and reoperations. Mean (SD) baseline body mass index (BMI) and age was 46.4 (6.7) kg/m(2) and 45.1 (11.2) years, respectively. Fifty-four percent of the patients were on medication for hypertension (HT) and 38 % for type 2 diabetes mellitus (DM2). Mean (SD) and median (range) surgical time was 73.8 (16.9) and 65 (40-143) min, respectively. Mean LOS was 1.3 days (1.1), median 1 day (1-14). Of all patients, 322 (83 %) were discharged on the first postoperative day (POD). Overall morbidity was 9.8 %. Three patients (0.8 %) had life-threatening complications. The readmission rate was 4.9 %, and 3.4 % of the patients had to be reoperated. With a follow-up rate of 83 % at 1 year, total weight loss (TWL) was 31 % and excess BMI loss (EBMIL) 70 %. Total remission of DM2 and HT was achieved in 70 and 42 % of the patients, respectively. Enhanced recovery following LRYGB with ERAS programs is possible and safe even in a low volume, general hospital. Early discharge does not increase postoperative morbidity or readmissions.

  12. The academic productivity and impact of the University of Toronto Neurosurgery Program as assessed by manuscripts published and their number of citations.

    Science.gov (United States)

    Lozano, Christopher S; Tam, Joseph; Kulkarni, Abhaya V; Lozano, Andres M

    2015-09-01

    Recent works have assessed academic output across neurosurgical programs using various analyses of accumulated citations as a proxy for academic activity and productivity. These assessments have emphasized North American neurosurgical training centers and have largely excluded centers outside the United States. Because of the long tradition and level of academic activity in neurosurgery at the University of Toronto, the authors sought to compare that program's publication and citation metrics with those of established programs in the US as documented in the literature. So as to not rely on historical achievements that may be of less relevance, they focused on recent works, that is, those published in the most recent complete 5-year period. The authors sought to make their data comparable to existing published data from other programs. To this end, they compiled a list of published papers by neurosurgical faculty at the University of Toronto for the period from 2009 through 2013 using the Scopus database. Individual author names were disambiguated; the total numbers of papers and citations were compiled on a yearly basis. They computed a number of indices, including the ih(5)-index (i.e., the number of citations the papers received over a 5-year period), the summed h-index of the current faculty over time, and a number of secondary measures, including the ig(5), ie(5), and i10(5)-indices. They also determined the impact of individual authors in driving the results using Gini coefficients. To address the issue of author ambiguity, which can be problematic in multicenter bibliometric analyses, they have provided a source dataset used to determine the ih(5) index for the Toronto program. The University of Toronto Neurosurgery Program had approximately 29 full-time surgically active faculty per year (not including nonneurosurgical faculty) in the 5-year period from 2009 to 2013. These faculty published a total of 1217 papers in these 5 years. The total number of

  13. Writing references and using citation management software

    Science.gov (United States)

    Sungur, Mukadder Orhan; Seyhan, Tülay Özkan

    2013-01-01

    The correct citation of references is obligatory to gain scientific credibility, to honor the original ideas of previous authors and to avoid plagiarism. Currently, researchers can easily find, cite and store references using citation management software. In this review, two popular citation management software programs (EndNote and Mendeley) are summarized. PMID:26328132

  14. Writing references and using citation management software.

    Science.gov (United States)

    Sungur, Mukadder Orhan; Seyhan, Tülay Özkan

    2013-09-01

    The correct citation of references is obligatory to gain scientific credibility, to honor the original ideas of previous authors and to avoid plagiarism. Currently, researchers can easily find, cite and store references using citation management software. In this review, two popular citation management software programs (EndNote and Mendeley) are summarized.

  15. Aberration of the Citation.

    Science.gov (United States)

    Moustafa, Khaled

    2016-01-01

    Multiple inherent biases related to different citation practices (for e.g., self-citations, negative citations, wrong citations, multi-authorship-biased citations, honorary citations, circumstantial citations, discriminatory citations, selective and arbitrary citations, etc.) make citation-based bibliometrics strongly flawed and defective measures. A paper can be highly cited for a while (for e.g., under circumstantial or transitional knowledge), but years later it may appear that its findings, paradigms, or theories were untrue or invalid anymore. By contrast, a paper may remain shelved or overlooked for years or decades, but new studies or discoveries may actualize its subject at any moment. As citation-based metrics are transformed into "commercial activities," the "citation credit" should be considered on a commercial basis too, in the sense that "citation credit" should be shared out as a "citation dividend" by shareholders (coauthors) averagely or proportionally to their contributions but not fully appropriated by each of them. At equal numbers of citations, the greater number of authors, the lower "citation credit" should be and vice versa. Overlooking the presence of distorted and subjective citation practices makes many people and administrators "obsessed" with the number of citations to such an extent to run after "highly cited" authors and to create specialized citation databases for commercial purposes. Citation-based bibliometrics, however, are unreliable and unscientific measures; citation counts do not mean that a more cited work is of a higher quality or accuracy than a less cited work because citations do not measure the quality or accuracy. Citations do not mean that a highly cited author or journal is more commendable than a less cited author or journal. Citations are not more than countable numbers: no more, no less.

  16. Parental Management of Teen Drivers after Receiving Their First Traffic Citation and Having Attended the 4-H CARTEENS Program

    Science.gov (United States)

    Jordan, James Lawrence

    2010-01-01

    The United States is a vehicle-dependent society and allows teens to obtain drivers licenses at age 16 or younger. Many factors have been linked to teen risky driving behaviors that resulted in teens receiving their first citations. This was the first study to investigate parental management of teens after they received their first citations…

  17. Visibility and Citation Impact

    Science.gov (United States)

    Ebrahim, Nader Ale; Salehi, Hadi; Embi, Mohamed Amin; Tanha, Farid Habibi; Gholizadeh, Hossein; Motahar, Seyed Mohammad

    2014-01-01

    The number of publications is the first criteria for assessing a researcher output. However, the main measurement for author productivity is the number of citations, and citations are typically related to the paper's visibility. In this paper, the relationship between article visibility and the number of citations is investigated. A case study of…

  18. Sharing data increases citations

    DEFF Research Database (Denmark)

    Drachen, Thea Marie; Ellegaard, Ole; Larsen, Asger Væring

    2016-01-01

    This paper presents some indications to the existence of a citation advantage related to sharing data using astrophysics as a case. Through bibliometric analyses we find a citation advantage for astrophysical papers in core journals. The advantage arises as indexed papers are associated with data...... by bibliographical links, and consists of papers receiving on average significantly more citations per paper per year, than do papers not associated with links to data....

  19. Researchers' perceptions of citations

    NARCIS (Netherlands)

    Aksnes, Dag W.; Rip, Arie

    2009-01-01

    This paper looks at how citations are perceived among scientists. Based on a questionnaire survey it traces the repertoire of views and experiences about citations that could be found among Norwegian scientists that had published highly cited papers. Their views circle around three issues: the

  20. Citations Prize 2011 Citations Prize 2011

    Science.gov (United States)

    Webb, Steve; Harris, Simon

    2011-12-01

    Physics in Medicine & Biology (PMB) awards its 'Citations Prize' to the authors of the original research paper that has received the most citations in the preceding five years (according to the Institute for Scientific Information (ISI)). The lead author of the winning paper is presented with the Rotblat Medal (named in honour of Professor Sir Joseph Rotblat who was the second—and longest serving—Editor of PMB, from 1961-1972). The winning co-authors each receive a certificate. Susan Hagness (left) receiving the Rotblat Medal from Robert Jeraj of PMB's Editorial Board (right) on behalf of Mariya Lazebnik. The winner of the 2011 Citations Prize for the paper which has received the most citations in the previous 5 years (2006-2010) is A large-scale study of the ultrawideband microwave dielectric properties of normal, benign and malignant breast tissues obtained from cancer surgeries Authors: Mariya Lazebnik, Dijana Popovic, Leah McCartney, Cynthia B Watkins, Mary J Lindstrom, Josephine Harter, Sarah Sewall, Travis Ogilvie, Anthony Magliocco, Tara M Breslin, Walley Temple, Daphne Mew, John H Booske, Michal Okoniewski and Susan C Hagness Reference: Mariya Lazebnik et al 2007 Phys. Med. Biol. 52 6093-115 Discussion of the significance of the winning paper can be found on medicalphysicsweb (medicalphysicsweb.org/cws/article/research/47814). Our congratulations go to the winning authors. Steve Webb Editor-in-Chief Simon Harris Publisher

  1. Safety, feasibility, and tolerance of early oral feeding after colorectal resection outside an enhanced recovery after surgery (ERAS) program.

    Science.gov (United States)

    Gianotti, Luca; Nespoli, Luca; Torselli, Laura; Panelli, Mariarita; Nespoli, Angelo

    2011-06-01

    It is generally believed that resumption of feeding after colorectal resection is indicated only after recovery of bowel function. This study was designed to verify safety, feasibility, and tolerance of early oral postoperative feeding (EOF) outside an enhanced recovery after surgery (ERAS) program. One hundred patient candidates to elective colorectal resection were prospectively enrolled in an EOF program. Feeding was started on postoperative day (POD) 1 with oral nutritional supplement (ONS). On POD 2, patients had normal food plus ONS to reach 1,000-1,200 kcal/day with progressive increase until 1,800-2,000 kcal/day. Results were compared with historical controls (n = 100) in whom oral feeding was allowed only after full bowel function recovery. The ERAS program was not applied in both groups. The EOF group had a better recovery of short half-life protein synthesis compared with the control group (P days (range, 1-6 days) in the EOF group versus 5 days (range, 2-8 days) in the control group (P = 0.001). The feeding protocol was completed in 89 patients within POD 5. Tolerance to resumption of feeding was similar in the two groups. The overall rate of postoperative complication was 22% in the EOF group vs. 27% in the control group (P = 0.51). The median length of hospitalization was 9 days (range, 6-25 days) in the EOF group vs. 12 days (range, 6-31 days) in controls (P = 0.01). EOF after colorectal operations is feasible and safe outside an ERAS program.

  2. Non-Traffic Citations

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Non-traffic citations (NTCs, also known as "summary offenses") document low-level criminal offenses where a law enforcement officer or other authorized official...

  3. Citation classics in epilepsy

    Directory of Open Access Journals (Sweden)

    Maryann Wilson

    2013-01-01

    Full Text Available BACKGROUND: The impact of a scientific article is proportional to the citations it has received. In this study, we set out to identify the most cited works in epileptology in order to evaluate research trends in this field. METHODS: According to the Web of Science database, articles with more than 400 citations qualify as "citation classics". We conducted a literature search on the ISI Web of Science bibliometric database for scientific articles relevant to epilepsy. RESULTS: We retrieved 67 highly cited articles (400 or more citations, which were published in 31 journals: 17 clinical studies, 42 laboratory studies, 5 reviews and 3 classification articles. Clinical studies consisted of epidemiological analyses (n=3, studies on the clinical phenomenology of epilepsy (n=5 – including behavioral and prognostic aspects – and articles focusing on pharmacological (n=6 and non-pharmacological (n=3 treatment. The laboratory studies dealt with genetics (n=6, animal models (n=27, and neurobiology (n=9 – including both neurophysiology and neuropathology studies. The majority (61% of citation classics on epilepsy were published after 1986, possibly reflecting the expansion of research interest in laboratory studies driven by the development of new methodologies, specifically in the fields of genetics and animal models. Consequently, clinical studies were highly cited both before and after the mid 80s, whilst laboratory researches became widely cited after 1990. CONCLUSIONS: Our study indicates that the main drivers of scientific impact in the field of epileptology have increasingly become genetic and neurobiological studies, along with research on animal models of epilepsy. These articles are able to gain the highest numbers of citations in the time span of a few years and suggest potential directions for future research.

  4. Citation Analysis: Definitions and Applications

    Directory of Open Access Journals (Sweden)

    Amirhossein Abdoulmajid

    2007-04-01

    Full Text Available Citations hold a special place within scientific literature. In fact a scientific paper is deemed credible only when it cites the relevant works and papers on the subject. Citation analysis is a method based on the existing citations within scientific literature. It analyses and evaluates works by counting the number of citations used in different texts such as journals, dissertations and such. The emergence of citation indices has contributed to the remarkable growth and development of citation analysis, making it a significant research area over the past couple of decades. The present paper deals with the importance of citations and citation theories. Definitions and historical background on citation analysis as well as its various field applications are discussed.

  5. The citation impact outside references - formal versus informal citations

    OpenAIRE

    Marx, Werner; Cardona, Manuel

    2007-01-01

    In this study the amount of informal citations (i.e. those mentioning only author names or their initials instead of the complete references) in comparison to the formal (full reference based) citations is analyzed using some pioneers of chemistry and physics as examples. The data reveal that the formal citations often measure only a small fraction of the overall impact of seminal publications. Furthermore, informal citations are mainly given instead of (and not in addition to) formal citatio...

  6. E-Rate Program Seen as Too Lean for a Digital Era

    Science.gov (United States)

    Klein, Alyson

    2013-01-01

    As school districts strive to put more technology into schools to support 1-to-1 computing initiatives and prepare for the common-core online assessments, the federal E-rate program is in danger of becoming as outdated and insufficient as a sputtering dial-up connection in a Wi-Fi world. While the program can boast great success since its…

  7. Suicide Prevention in the Dot Com Era: Technological Aspects of a University Suicide Prevention Program

    Science.gov (United States)

    Manning, Jessica; VanDeusen, Karen

    2011-01-01

    Western Michigan University's Suicide Prevention Program utilizes multiple technological components, including an online training course, a Web site, and 2 social networking Web site profiles, as integral aspects of a comprehensive program. This article discusses the development, maintenance, use, and impact of the technological aspects of this…

  8. Role of Epidural Analgesia within an ERAS Program after Laparoscopic Colorectal Surgery: A Review and Meta-Analysis of Randomised Controlled Studies

    Directory of Open Access Journals (Sweden)

    Giuseppe Borzellino

    2016-01-01

    Full Text Available Introduction. Epidural analgesia has been a cornerstone of any ERAS program for open colorectal surgery. With the improvements in anesthetic and analgesic techniques as well as the introduction of the laparoscopy for colorectal resection, the role of epidural analgesia has been questioned. The aim of the review was to assess through a meta-analysis the impact of epidural analgesia compared to other analgesic techniques for colorectal laparoscopic surgery within an ERAS program. Methods. Literature research was performed on PubMed, Embase, and the Cochrane Library. All randomised clinical trials that reported data on hospital stay, postoperative complications, and readmissions rates within an ERAS program with and without an epidural analgesia after a colorectal laparoscopic resection were included. Results. Five randomised clinical trials were selected and a total of 168 patients submitted to epidural analgesia were compared to 163 patients treated by an alternative analgesic technique. Pooled data show a longer hospital stay in the epidural group with a mean difference of 1.07 (95% CI 0.06–2.08 without any significant differences in postoperative complications and readmissions rates. Conclusion. Epidural analgesia does not seem to offer any additional clinical benefits to patients undergoing laparoscopic colorectal surgery within an ERAS program.

  9. The dynamics of patent citations

    OpenAIRE

    Marco, Alan C.

    2006-01-01

    The use of patent citations as a measure of patent "quality" increased dramatically in recent years. I estimate the hazard of patent citation, and find evidence of unobserved heterogeneity. Hazard estimation provides a means to separate patent quality from citation "inflation."

  10. Research Courses in Education Leadership Programs: Relevance in an Era of Accountability

    Directory of Open Access Journals (Sweden)

    Rebecca M. Bustamante

    2011-05-01

    Full Text Available Master’s degree research course offerings of 72 university education leadership programs were examined to explore how relevant the courses were to the inquiry needs of practicing school leaders. Research course titles and descriptions were analyzed using content analysis. Findings revealed considerable variation in research course requirements, course titles, and course descriptions. Analysis of course descriptions indicated minimal emphasis on the research skills required for school improvement. Results also suggested a lack of consensus on the importance of developing research skills for school leaders across university education leadership programs. Implications for education leadership preparation programs are discussed with an emphasis on the need for further studies on the research skills required by practicing school leaders.

  11. Research paper citation record keeping: it is not for wimps.

    Science.gov (United States)

    Dodson, M V

    2008-10-01

    In an era in which academic institutions are held more accountable, a problem, which does not seem to have an immediate resolution, exists: how does one demonstrate the quality of one's work? Specifically, how does one show that his or her research is making an impact and is thought to be important? A variety of measures of scientific journal article importance, reflected mostly by citation analyses, have been focused on as being potential gold standards. However, although several measures have been reported, keeping a record of citation of individual research papers, primarily due to the effort involved in finding accurate information, is not for wimps.

  12. Beyond McPoetry: Contemporary American Poetry in the Institutionalized Creative Writing Program Era

    Science.gov (United States)

    Porter, Julie LaRue

    2012-01-01

    This dissertation examines the rise of the creative writing program in American higher education and considers its influence on contemporary American poetry. I investigate how the patronage of the university has impacted American poetry and reconfigured the contemporary literary landscape. Using Mark McGurl's (2009) groundbreaking research on…

  13. Characterizing and Modeling Citation Dynamics

    Science.gov (United States)

    Eom, Young-Ho; Fortunato, Santo

    2011-01-01

    Citation distributions are crucial for the analysis and modeling of the activity of scientists. We investigated bibliometric data of papers published in journals of the American Physical Society, searching for the type of function which best describes the observed citation distributions. We used the goodness of fit with Kolmogorov-Smirnov statistics for three classes of functions: log-normal, simple power law and shifted power law. The shifted power law turns out to be the most reliable hypothesis for all citation networks we derived, which correspond to different time spans. We find that citation dynamics is characterized by bursts, usually occurring within a few years since publication of a paper, and the burst size spans several orders of magnitude. We also investigated the microscopic mechanisms for the evolution of citation networks, by proposing a linear preferential attachment with time dependent initial attractiveness. The model successfully reproduces the empirical citation distributions and accounts for the presence of citation bursts as well. PMID:21966387

  14. Characterizing and modeling citation dynamics.

    Science.gov (United States)

    Eom, Young-Ho; Fortunato, Santo

    2011-01-01

    Citation distributions are crucial for the analysis and modeling of the activity of scientists. We investigated bibliometric data of papers published in journals of the American Physical Society, searching for the type of function which best describes the observed citation distributions. We used the goodness of fit with Kolmogorov-Smirnov statistics for three classes of functions: log-normal, simple power law and shifted power law. The shifted power law turns out to be the most reliable hypothesis for all citation networks we derived, which correspond to different time spans. We find that citation dynamics is characterized by bursts, usually occurring within a few years since publication of a paper, and the burst size spans several orders of magnitude. We also investigated the microscopic mechanisms for the evolution of citation networks, by proposing a linear preferential attachment with time dependent initial attractiveness. The model successfully reproduces the empirical citation distributions and accounts for the presence of citation bursts as well.

  15. Hepatitis B vaccination: an unmet challenge in the era of harm reduction programs.

    Science.gov (United States)

    Vallejo, Fernando; Toro, Carlos; de la Fuente, Luis; Brugal, M Teresa; Barrio, Gregorio; Soriano, Vicente; Ballesta, Rosario; Bravo, María J

    2008-06-01

    The prevalence of vaccination against hepatitis B virus (HBV), factors associated with vaccination, and missed opportunities for vaccination were assessed among 949 street-recruited young injecting heroin users (IHUs) and noninjecting HUs (NIHUs). A cross-sectional study was carried out in Madrid, Barcelona, and Seville. Face-to-face interviews were held using a structured questionnaire with computer-assisted personal interviewing. Dried blood spot samples were tested for anti-HBV core antigen and HBV surface antigen. Bivariate and logistic regression analyses were performed. The prevalence of HBV vaccination was 21.7%, with significant differences among the cities (13.3% in Madrid, 18.4% in Seville, and 33.2% in Barcelona) and between IHUs (23.8%) and NIHUs (17.9%). In the logistic regression analysis, living in Barcelona and being aged 25 years or younger were associated with HBV vaccination in IHUs and NIHUs; in IHUs, vaccination was also associated with living in the street or in institutions for most of the last 12 months. Practically all those susceptible to HBV infection had missed at least one opportunity for vaccination, and most of them had missed such an opportunity in the last year. The proportion of vaccinated HUs remains very low despite efforts to set up harm reduction programs. New and more active strategies must be incorporated in these programs.

  16. PERSEPSI PETUGAS LAPANGAN KELUARGA BERENCANA, PROVIDER, DAN PASANGAN USIA SUBUR TERHADAP EKSISTENSI PROGRAM KELUARGA BERENCANA PADA ERA DESENTRALISASI DI KABUPATEN KARANGASEM

    Directory of Open Access Journals (Sweden)

    I Ketut Sudibia

    2012-11-01

    Full Text Available The change of government from “The New Order” to “The Reformation Order” has also been followed by the change of administration system from centralization to decentralization system. Along with that change, the authority and institution of family planning program have also been transferred to the regency or city government. These changes have risen various perceptions in term of the institutional, roles, and functions of that institute. Other important changes include that (1 the family planning coordination board organization on regency level did not change but the echelon was decreased; or (2 the family planning coordination board organization on regency level was merged to other institution; or (3 the family planning coordination board activity on regency level is only a little part of the other instance. All of those changes have caused some problems of coordination from family planning coordination board on province level to regency level, and it has given a negative impact to the family planning program achievement.The objectives of this study are to investigate (1 the perception of the family program field worker to the existence of family planning program in the decentralization era; (2 the perception of the family planning fieldworkers to the realization of duties in the decentralization era; (3 the perception of the provider to the existence of family planning program in the decentralization era; (4 the perception of the eligible couple to the existence of family planning program in the decentralization era; and (5 the perception of the interrelated decision makers to the existence of family planning program in the decentralization era.This study was carried out in the Regency of Karangasem with total respondent of 153 persons, that consist of 46 fieldworkers; 89 eligible couples, 12 providers, and 6 interrelated decision makers. Some sampling techniques used in this study are; simple random sampling for family planning

  17. The impact of obesity on cardiovascular structure and function: the fetal programming era

    Directory of Open Access Journals (Sweden)

    St-Pierre J

    2012-03-01

    Full Text Available Julie St-Pierre1, Luigi Bouchard2,3, Paul Poirier41Department of Pediatrics, Chicoutimi Hospital, Saguenay, QC, Canada; 2Department of Biochemistry, Université de Sherbrooke, Sherbrooke, QC, Canada; 3ECOGENE-21 and Lipid Clinic, Chicoutimi Hospital, Saguenay, QC, Canada; 4Quebec Heart and Lungs Institute, Université Laval, Quebec, QC, CanadaAbstract: The burden of obesity is now well established as a precursor of cardiovascular disease and other disorders. Although better clinical guidelines exist to prevent and treat obesity, the prevalence of obesity among children and adolescents is increasing alarmingly. Primary prevention remains the gold standard to significantly reduce the public health concerns associated with obesity. Traditional cardiovascular disease risk factors (such as dyslipidemia, hypertension, type 2 diabetes for cardiovascular disease among children and adolescents are known. The scope of this review is thus to discuss new and emerging obesity and associated-disease risk factors. Evaluation of the coronary plaque formation, diastolic dysfunction, carotid intima-media thickness and heart rate variability represent interesting tools with clinical relevance. Beyond these new cardiovascular disease risk factors, recent evidence suggests that a detrimental fetal environment, associated with for example, maternal obesity, insulin resistance, and physical inactivity, imprints fetal metabolic programming via epigenetic mechanisms that predisposes the newborn to obesity and cardiovascular disease later in life. This information may impact on the future management of maternal health, as well as for those high-risk children.Keywords: cardiovascular disease, pediatrics, risk factors

  18. ERA-40

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — ERA-40 project was to produce and promote the use of a comprehensive set of global analysis describing the state of the atmosphere and land and ocean-wave conditions...

  19. Citation as a Representation Process

    OpenAIRE

    Kryssanov, V. V.; Rinaldo, F. J.; Ogawa, H.; Kuleshov, E.

    2006-01-01

    The presented work proposes a novel approach to model the citation rate. The paper begins with a brief introduction into informetrics studies and highlights drawbacks of the contemporary approaches to modeling the citation process as a product of social interactions. An alternative modeling framework based on results obtained in cognitive psychology is then introduced and applied in an experiment to investigate properties of the citation process, as they are revealed by a large collection of ...

  20. Encouraging data citation and discovery with the Data Citation Index.

    Science.gov (United States)

    Force, Megan M; Robinson, Nigel J

    2014-10-01

    An overview of the Data Citation Index is provided. Thomson Reuters developed this resource in response to a stated desire among members of the research community for increased attribution of non-traditional scholarly output. Launched in October of 2012 on the Web of science research platform, its aims include linking published research articles to their underlying data sets and tracking the citation of the data, as well as encouraging bibliographic citation of data. Cross-disciplinary search capabilities in the Index enable new possibilities for data discovery and synthesis. Data repositories are evaluated with respect to various selection criteria, with particular attention to their relevance to scientific and scholarly research. Index content reflects current data deposition practices. As data citation standards and practices continue to move toward widespread formalization and adoption, the initiative seeks to address issues of data citation, reuse, and author credit in a developing climate.

  1. Improving Software Citation and Credit

    CERN Document Server

    Allen, Alice; DuPrie, Kimberly; Mink, Jessica; Nemiroff, Robert; Robitaille, Thomas; Shamir, Lior; Shortridge, Keith; Taylor, Mark; Teuben, Peter; Wallin, John

    2015-01-01

    The past year has seen movement on several fronts for improving software citation, including the Center for Open Science's Transparency and Openness Promotion (TOP) Guidelines, the Software Publishing Special Interest Group that was started at January's AAS meeting in Seattle at the request of that organization's Working Group on Astronomical Software, a Sloan-sponsored meeting at GitHub in San Francisco to begin work on a cohesive research software citation-enabling platform, the work of Force11 to "transform and improve" research communication, and WSSSPE's ongoing efforts that include software publication, citation, credit, and sustainability. Brief reports on these efforts were shared at the BoF, after which participants discussed ideas for improving software citation, generating a list of recommendations to the community of software authors, journal publishers, ADS, and research authors. The discussion, recommendations, and feedback will help form recommendations for software citation to those publishers...

  2. Characterizing and modeling citation dynamics.

    Directory of Open Access Journals (Sweden)

    Young-Ho Eom

    Full Text Available Citation distributions are crucial for the analysis and modeling of the activity of scientists. We investigated bibliometric data of papers published in journals of the American Physical Society, searching for the type of function which best describes the observed citation distributions. We used the goodness of fit with Kolmogorov-Smirnov statistics for three classes of functions: log-normal, simple power law and shifted power law. The shifted power law turns out to be the most reliable hypothesis for all citation networks we derived, which correspond to different time spans. We find that citation dynamics is characterized by bursts, usually occurring within a few years since publication of a paper, and the burst size spans several orders of magnitude. We also investigated the microscopic mechanisms for the evolution of citation networks, by proposing a linear preferential attachment with time dependent initial attractiveness. The model successfully reproduces the empirical citation distributions and accounts for the presence of citation bursts as well.

  3. Citations to papers from Brazilian institutions: a more effective indicator to assess productivity and the impact of research in graduate programs

    Directory of Open Access Journals (Sweden)

    R. Meneghini

    2011-08-01

    Full Text Available A recent assessment of 4400 postgraduate courses in Brazil by CAPES (a federal government agency dedicated to the improvement of the quality of and research at the postgraduate level stimulated a large amount of manifestations in the press, scientific journals and scientific congresses. This gigantic effort to classify 16,400 scientific journals in order to provide indicators for assessment proved to be puzzling and methodologically erroneous in terms of gauging the institutions from a metric point of view. A simple algorithm is proposed here to weigh the scientometric indicators that should be considered in the assessment of a scientific institution. I conclude here that the simple gauge of the total number of citations accounts for both the productivity of scientists and the impact of articles. The effort spent in this exercise is relatively small, and the sources of information are fully accessible. As an exercise to estimate the value of the methodology, 12 institutions of physics (10 from Brazil, one from the USA and one from Italy have been evaluated.

  4. Citation Rate Predictors in the Plastic Surgery Literature.

    Science.gov (United States)

    Lopez, Joseph; Calotta, Nicholas; Doshi, Ankur; Soni, Ashwin; Milton, Jacqueline; May, James W; Tufaro, Anthony P

    The purpose of this study is to determine and characterize the scientific and nonscientific factors that influence the rate of article citation in the field of plastic surgery. Cross-sectional study. We reviewed all entries in Annals of Plastic Surgery and Journal of Plastic, Reconstructive, and Aesthetic Surgery from January 1, 2007 to December 31, 2007; and Plastic and Reconstructive Surgery from January 1, 2007 to December 31, 2008. All scientific articles were analyzed and several article characteristics were extracted. The number of citations at 5 years was collected as the outcome variable. A multivariable analysis was performed to determine which variables were associated with higher citations rates. A total of 2456 articles were identified of which only 908 fulfilled the inclusion criteria. Most studies were publications in the fields of reconstructive (26.3%) or pediatric/craniofacial (17.6%) surgery. The median number of citations 5 years from publication was 8. In the multivariable analysis, factors associated with higher citations rates were subspecialty field (p = 0.0003), disclosed conflict of interest (p = 0.04), number of authors (p = 0.04), and journal (p = 0.02). We have found that higher level of evidence (or other study methodology factors) is not associated with higher citation rates. Instead, conflict of interest, subspecialty topic, journal, and number of authors are strong predictors of high citation rates in plastic surgery. Copyright © 2017 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

  5. Diet History Questionnaire: Suggested Citations

    Science.gov (United States)

    Use of the Diet History Questionnaire and Diet*Calc Analysis Software for publication purposes should contain a citation which includes version information for the software, questionnaire, and nutrient database.

  6. Citation analysis of scientific categories

    Directory of Open Access Journals (Sweden)

    Gregory S. Patience

    2017-05-01

    Full Text Available Databases catalogue the corpus of research literature into scientific categories and report classes of bibliometric data such as the number of citations to articles, the number of authors, journals, funding agencies, institutes, references, etc. The number of articles and citations in a category are gauges of productivity and scientific impact but a quantitative basis to compare researchers between categories is limited. Here, we compile a list of bibliometric indicators for 236 science categories and citation rates of the 500 most cited articles of each category. The number of citations per paper vary by several orders of magnitude and are highest in multidisciplinary sciences, general internal medicine, and biochemistry and lowest in literature, poetry, and dance. A regression model demonstrates that citation rates to the top articles in each category increase with the square root of the number of articles in a category and decrease proportionately with the age of the references: articles in categories that cite recent research are also cited more frequently. The citation rate correlates positively with the number of funding agencies that finance the research. The category h-index correlates with the average number of cites to the top 500 ranked articles of each category (R2=0.997. Furthermore, only a few journals publish the top 500 cited articles in each category: four journals publish 60% (σ=±20% of these and ten publish 81% (σ=±15%.

  7. Citation analysis of scientific categories.

    Science.gov (United States)

    Patience, Gregory S; Patience, Christian A; Blais, Bruno; Bertrand, Francois

    2017-05-01

    Databases catalogue the corpus of research literature into scientific categories and report classes of bibliometric data such as the number of citations to articles, the number of authors, journals, funding agencies, institutes, references, etc. The number of articles and citations in a category are gauges of productivity and scientific impact but a quantitative basis to compare researchers between categories is limited. Here, we compile a list of bibliometric indicators for 236 science categories and citation rates of the 500 most cited articles of each category. The number of citations per paper vary by several orders of magnitude and are highest in multidisciplinary sciences, general internal medicine, and biochemistry and lowest in literature, poetry, and dance. A regression model demonstrates that citation rates to the top articles in each category increase with the square root of the number of articles in a category and decrease proportionately with the age of the references: articles in categories that cite recent research are also cited more frequently. The citation rate correlates positively with the number of funding agencies that finance the research. The category h-index correlates with the average number of cites to the top 500 ranked articles of each category ([Formula: see text]). Furthermore, only a few journals publish the top 500 cited articles in each category: four journals publish 60% ([Formula: see text]) of these and ten publish 81% ([Formula: see text]).

  8. 41 CFR 105-1.150 - Citation.

    Science.gov (United States)

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Citation. 105-1.150... (Continued) GENERAL SERVICES ADMINISTRATION 1-INTRODUCTION 1.1-Regulations System § 105-1.150 Citation. (a) In formal documents, such as legal briefs, citations of chapter 105 material shall include a citation...

  9. 27 CFR 71.72 - Before citation.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2010-04-01 2010-04-01 false Before citation. 71.72... Procedure Surrender of Permit § 71.72 Before citation. If a respondent surrenders the permit before citation... appropriate TTB officer, warrants citation for suspension, revocation or annulment, the surrender shall be...

  10. Citation analysis of puerperal and menstrual psychosis.

    Science.gov (United States)

    Brockington, Ian

    2017-02-01

    A citation analysis of more than 2500 works on the childbearing and menstrual psychoses has shown that the average number of citations is 1 % of the literature or less; Anglo-Saxon authors have the lowest standards of scholarship. Many excellent works have received few of no citations. Attention is drawn to citation fraud and the pernicious effect of superficial "reviews."

  11. Citation classics in neuro-oncology: assessment of historical trends and scientific progress.

    Science.gov (United States)

    Hachem, Laureen D; Mansouri, Alireza; Juraschka, Kyle; Taslimi, Shervin; Pirouzmand, Farhad; Zadeh, Gelareh

    2017-09-01

    Citation classics represent the highest cited works in a field and are often regarded as the most influential literature. Analyzing thematic trends in citation classics across eras enables recognition of important historical advances within a field. We present the first analysis of the citation classics in neuro-oncology. The Web of Science database was searched using terms relevant to "neuro-oncology." Articles with >400 citations were identified and the top 100 cited articles were evaluated. The top 100 neuro-oncology citation classics consisted of 43 clinical studies (17 retrospective, 10 prospective, 16 randomized trials), 43 laboratory investigations, 8 reviews/meta-analyses, and 6 guidelines/consensus statements. Articles were classified into 4 themes: 13 pertained to tumor classification, 37 to tumor pathogenesis/clinical presentation, 6 to imaging, 44 to therapy (15 chemotherapy, 10 radiotherapy, 5 surgery, 14 new agents). Gliomas were the most common tumor type examined, with 70 articles. There was a significant increase in the number of citation classics in the late 1990s, which was paralleled by an increase in studies examining tumor pathogenesis, chemotherapy, and new agents along with laboratory and randomized studies. The majority of citation classics in neuro-oncology are related to gliomas and pertain to tumor pathogenesis and treatment. The rise in citation classics in recent years investigating tumor biology, new treatment agents, and chemotherapeutics may reflect increasing scientific interest in nonsurgical treatments for CNS tumors and the need for fundamental investigations into disease processes.

  12. Female Veterans of Iraq and Afghanistan seeking care from VA specialized PTSD Programs: comparison with male veterans and female war zone veterans of previous eras.

    Science.gov (United States)

    Fontana, Alan; Rosenheck, Robert; Desai, Rani

    2010-04-01

    Differences in the characteristics and mental health needs of female veterans of the Iraq/Afghanistan war compared with those of veterans of other wars may have useful implications for VA program and treatment planning. Female veterans reporting service in the Iraq/Afghanistan war were compared with women reporting service in the Persian Gulf and Vietnam wars and to men reporting service in the Iraq/Afghanistan war. Subjects were drawn from VA administrative data on veterans who sought outpatient treatment from specialized posttraumatic stress disorder (PTSD) treatment programs. A series of analyses of covariance (ANCOVA) was used to control for program site and age. In general, Iraq/Afghanistan and Persian Gulf women had less severe psychopathology and more social supports than did Vietnam women. In turn, Iraq/Afghanistan women had less severe psychopathology than Persian Gulf women and were exposed to less sexual and noncombat nonsexual trauma than their Persian Gulf counterparts. Notable differences were also found between female and male veterans of the Iraq/Afghanistan war. Women had fewer interpersonal and economic supports, had greater exposure to different types of trauma, and had different levels of diverse types of pathology than their male counterparts. There appear to be sufficient differences within women reporting service in different war eras and between women and men receiving treatment in VA specialized treatment programs for PTSD that consideration should be given to program planning and design efforts that address these differences in every program treating female veterans reporting war zone service.

  13. Citation analysis in research evaluation

    CERN Document Server

    Moed, Henk F

    2005-01-01

    This book is written for members of the scholarly research community, and for persons involved in research evaluation and research policy. More specifically, it is directed towards the following four main groups of readers: - All scientists and scholars who have been or will be subjected to a quantitative assessment of research performance using citation analysis. - Research policy makers and managers who wish to become conversant with the basic features of citation analysis, and about its potentialities and limitations. - Members of peer review committees and other evaluators, who consider th

  14. Coastal Change Analysis Program (C-CAP) zone 60 and zone 64 1996-2005-era land cover change analysis (NODC Accession 0043164)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains the 1996-era and 2005-era classifications of US East Coast, zone 60 and zone 64 can be used to analyze change. This imagery was collected as...

  15. Coastal Change Analysis Program (C-CAP) for coastal California, 1995-2002-era land cover change analysis (NODC Accession 0038579)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains the 1995-era and 2002-era classifications of Coastal California and can be used to analyze change. This data set utilized 87 full or partial...

  16. Coastal Change Analysis Program (C-CAP) zone 65 and zone 66 1995-2005-era land cover change analysis (NODC Accession 0043162)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains the 1995-era and 2005-era classifications of US Northeast, zone 65 and zone 66 and can be used to analyze change. This imagery was collected...

  17. Impact of Wikipedia on citation trends.

    Science.gov (United States)

    Marashi, Sayed-Amir; Hosseini-Nami, Seyed Mohammad Amin; Alishah, Khadijeh; Hadi, Mahdieh; Karimi, Ali; Hosseinian, Saeedeh; Fard, Rouhallah Ramezani; Mirhassani, Reihaneh Sadat; Hosseini, Zhaleh; Shojaie, Zahra

    2013-01-01

    It has been suggested that the "visibility" of an article influences its citation count. More specifically, it is believed that the social media can influence article citations.Here we tested the hypothesis that inclusion of scholarly references in Wikipedia affects the citation trends. To perform this analysis, we introduced a citation "propensity" measure, which is inspired by the concept of amino acid propensity for protein secondary structures. We show that although citation counts generally increase during time, the citation "propensity" does not increase after inclusion of a reference in Wikipedia.

  18. Modeling the citation network by network cosmology.

    Science.gov (United States)

    Xie, Zheng; Ouyang, Zhenzheng; Zhang, Pengyuan; Yi, Dongyun; Kong, Dexing

    2015-01-01

    Citation between papers can be treated as a causal relationship. In addition, some citation networks have a number of similarities to the causal networks in network cosmology, e.g., the similar in-and out-degree distributions. Hence, it is possible to model the citation network using network cosmology. The casual network models built on homogenous spacetimes have some restrictions when describing some phenomena in citation networks, e.g., the hot papers receive more citations than other simultaneously published papers. We propose an inhomogenous causal network model to model the citation network, the connection mechanism of which well expresses some features of citation. The node growth trend and degree distributions of the generated networks also fit those of some citation networks well.

  19. Modeling the citation network by network cosmology.

    Directory of Open Access Journals (Sweden)

    Zheng Xie

    Full Text Available Citation between papers can be treated as a causal relationship. In addition, some citation networks have a number of similarities to the causal networks in network cosmology, e.g., the similar in-and out-degree distributions. Hence, it is possible to model the citation network using network cosmology. The casual network models built on homogenous spacetimes have some restrictions when describing some phenomena in citation networks, e.g., the hot papers receive more citations than other simultaneously published papers. We propose an inhomogenous causal network model to model the citation network, the connection mechanism of which well expresses some features of citation. The node growth trend and degree distributions of the generated networks also fit those of some citation networks well.

  20. The Rise and Rise of Citation Analysis

    OpenAIRE

    Meho, Lokman I.

    2006-01-01

    With the vast majority of scientific papers now available online, the author describes how the Web is allowing physicists and information providers to measure more accurately the impact of these papers and their authors. Provides a historical background of citation analysis, ISI's citation databases, and the impact factor. Discusses the strengths and weaknesses of Web of Science and other more recent citation data sources (e.g., Scopus and Google Scholar), the impact of the Web on citation...

  1. Kinesiology Faculty Citations across Academic Rank

    Science.gov (United States)

    Knudson, Duane

    2015-01-01

    Citations to research reports are used as a measure for the influence of a scholar's research line when seeking promotion, grants, and awards. The current study documented the distributions of citations to kinesiology scholars of various academic ranks. Google Scholar Citations was searched for user profiles using five research interest areas…

  2. Effective Strategies for Increasing Citation Frequency

    Science.gov (United States)

    Ebrahim, Nader Ale; Salehi, Hadi; Embi, Mohamed Amin; Tanha, Farid Habibi; Gholizadeh, Hossein; Motahar, Seyed Mohammad; Ordi, Ali

    2013-01-01

    Due to the effect of citation impact on The Higher Education (THE) world university ranking system, most of the researchers are looking for some helpful techniques to increase their citation record. This paper by reviewing the relevant articles extracts 33 different ways for increasing the citations possibilities. The results show that the article…

  3. Ranking national research systems by citation indicators

    DEFF Research Database (Denmark)

    Aksnes, Dag W.; Schneider, Jesper Wiborg; Gunnarsson, Magnus

    2012-01-01

    This paper presents an empirical analysis of two different methodologies for calculating national citation indicators: whole counts and fractionalised counts. The aim of our study is to investigate the effect on relative citation indicators when citations to documents are fractionalised among the...

  4. 27 CFR 71.73 - After citation.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2010-04-01 2010-04-01 false After citation. 71.73 Section 71.73 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT... Procedure Surrender of Permit § 71.73 After citation. If a respondent surrenders the permit after citation...

  5. 78 FR 4766 - Authority Citation Correction

    Science.gov (United States)

    2013-01-23

    ... COMMISSION 17 CFR Part 200 Authority Citation Correction AGENCY: Securities and Exchange Commission. ACTION... citation. The Commission is publishing this technical amendment to accurately reflect the authority citation in the Code of Federal Regulations. DATES: Effective Date: January 23, 2013. FOR FURTHER...

  6. Citation Analysis and Discourse Analysis Revisited

    Science.gov (United States)

    White, Howard D.

    2004-01-01

    John Swales's 1986 article "Citation analysis and discourse analysis" was written by a discourse analyst to introduce citation research from other fields, mainly sociology of science, to his own discipline. Here, I introduce applied linguists and discourse analysts to citation studies from information science, a complementary tradition not…

  7. A Comparative Study of the Citation Impact of Chinese Journals with Government Priority Support

    NARCIS (Netherlands)

    Zhou, P.; Leydesdorff, L.

    2016-01-01

    In order to improve the citation impact of Chinese journals, relevant Chinese government agencies have launched a program entitled Citation Impact Upgrading Plan (CIUP) with financial support. Only a few journals that perform better have been screened out for CIUP support. This study tries to figure

  8. Using Citation Analysis Methods to Assess the Influence of Science, Technology, Engineering, and Mathematics Education Evaluations

    Science.gov (United States)

    Greenseid, Lija O.; Lawrenz, Frances

    2011-01-01

    This study explores the use of citation analysis methods to assess the influence of program evaluations conducted within the area of science, technology, engineering, and mathematics (STEM) education. Citation analysis is widely used within scientific research communities to measure the relative influence of scientific research enterprises and/or…

  9. Quality Weighted Citations Versus Total Citations in the Sciences and Social Sciences

    NARCIS (Netherlands)

    C-L. Chang (Chia-Lin); M.J. McAleer (Michael)

    2014-01-01

    markdownabstract__Abstract__ The paper analyses academic journal quality and research impact using quality weighted citations versus total citations, based on the widely-used Thomson Reuters ISI Web of Science citations database (ISI). A new Index of Citations Quality (ICQ) is presented, based on

  10. Quality Weighted Citations versus Total Citations in the Sciences and Social Sciences

    NARCIS (Netherlands)

    C-L. Chang (Chia-Lin); M.J. McAleer (Michael)

    2014-01-01

    markdownabstract__Abstract__ The paper analyses academic journal quality and research impact using quality weighted citations versus total citations, based on the widely-used Thomson Reuters ISI Web of Science citations database (ISI). A new Index of Citations Quality (ICQ) is presented, based on

  11. Less Citation, Less Dissemination: The Case of French Psychoanalysis

    Directory of Open Access Journals (Sweden)

    Rémy Potier

    2016-11-01

    Full Text Available We contribute to inquiries about the visibility of globalized psychoanalytic research in the digital era (cf. Stepansky 2009 by adopting a comparative perspective on a specific geographic area of historical importance for psychoanalysis: France. The largely digital globalized psychoanalytic research field relies on standard bibliometric measures of journal quality (Impact Factor, SJR, etc.,which depend on the number and type of academic cites received by a journal. Thus, citing shapes academic publishing space by differentially valuing its component journals. Conversely, not to cite practically means not to engage with the field. Hence, we took citedness rate as a proxy for global visibility.By drawing on an original database created by one of us, we determined the global citational visibility of French vs. Anglo- American psychoanalytic productions (respective global outreach; and we related it to a first look at French vs. Anglo-American citation practices (geographic breakdown of article cites.We found that,on a 15 - year period,the global outreach(citedness rate of French articles is ten times smaller than that of Anglo - American articles;and that French articles are cited in Anglo - American journals five times more than Anglo - American articles in French journals– which in turn don’ t seem to cite their French peers very often.These specific French citation practices could be explained by the implicit modes of reference at work in clinical settings shaped by rich theoretical and clinical local legacies.We conclude by considering that this situation presents French psychoanalytic research with a formidable opportunityfor increased citational visibility.

  12. Coastal Change Analysis Program (C-CAP) Great Lakes; Michigan 1996-2001 era land cover change analysis (NODC Accession 0042189)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set is a change analysis of 1996-era C-CAP land cover and 2001-era C-CAP land cover for the State of Michigan, in the Great Lakes Region of the U.S. This...

  13. Mastering improvement science skills in the new era of quality and safety: the Veterans Affairs National Quality Scholars Program.

    Science.gov (United States)

    Estrada, Carlos A; Dolansky, Mary A; Singh, Mamta K; Oliver, Brant J; Callaway-Lane, Carol; Splaine, Mark; Gilman, Stuart; Patrician, Patricia A

    2012-04-01

    Healthcare professionals need a new skill set to ensure the success of quality improvement in healthcare. The Department of Veterans Affairs (VA) initiated the VA National Quality Scholars fellowship in 1998; its mission is to improve the quality of care, ensure safety, accelerate healthcare re-design, and advance the improvement science by educating the next generation of leaders in quality and safety. We describe the critical need for leadership in quality and safety and interprofessional education, illustrate the curriculum, provide lessons learned by fellows, summarize key lessons learned from the implementation of an interprofessional education approach, and present most recent accomplishments. Narrative review. As of 2011, 106 program alumni are embedded in the health care delivery system across the United States. Since 2009, when nurse fellows joined the program, of the first nine graduating interdisciplinary fellows, the tailored curriculum has resulted in five advanced academic degrees, 42 projects, 29 teaching activities, 44 presentations, 36 publications, six grants funded or submitted, and two awards. The VA National Quality Scholars program continues to nurture and develop leaders for the new millennium focusing on interprofessional education. The nations' health care systems need strong interdisciplinary leaders in advanced quality improvement science who are dedicated to improving the overall quality of health and health care. Published 2012. This article is a U.S. Government work and is in the public domain in the USA.

  14. Functions of Uni- and Multi-citations: Implications for Weighted Citation Analysis

    Directory of Open Access Journals (Sweden)

    Dangzhi Zhao

    2017-01-01

    Full Text Available Purpose: (1 To test basic assumptions underlying frequency-weighted citation analysis: (a Uni-citations correspond to citations that are nonessential to the citing papers; (b The influence of a cited paper on the citing paper increases with the frequency with which it is cited in the citing paper. (2 To explore the degree to which citation location may be used to help identify nonessential citations. Design/methodology/approach: Each of the in-text citations in all research articles published in Issue 1 of the Journal of the Association for Information Science and Technology (JASIST 2016 was manually classified into one of these five categories: Applied, Contrastive, Supportive, Reviewed, and Perfunctory. The distributions of citations at different in-text frequencies and in different locations in the text by these functions were analyzed. Findings: Filtering out nonessential citations before assigning weight is important for frequency-weighted citation analysis. For this purpose, removing citations by location is more effective than re-citation analysis that simply removes uni-citations. Removing all citation occurrences in the Background and Literature Review sections and uni-citations in the Introduction section appears to provide a good balance between filtration and error rates. Research limitations: This case study suffers from the limitation of scalability and generalizability. We took careful measures to reduce the impact of other limitations of the data collection approach used. Relying on the researcher’s judgment to attribute citation functions, this approach is unobtrusive but speculative, and can suffer from a low degree of confidence, thus creating reliability concerns. Practical implications: Weighted citation analysis promises to improve citation analysis for research evaluation, knowledge network analysis, knowledge representation, and information retrieval. The present study showed the importance of filtering out nonessential

  15. Measuring Research Quality Using the Journal Impact Factor, Citations and "Ranked Journals": Blunt Instruments or Inspired Metrics?

    Science.gov (United States)

    Jarwal, Som D.; Brion, Andrew M.; King, Maxwell L.

    2009-01-01

    This paper examines whether three bibliometric indicators--the journal impact factor, citations per paper and the Excellence in Research for Australia (ERA) initiative's list of "ranked journals"--can predict the quality of individual research articles as assessed by international experts, both overall and within broad disciplinary…

  16. The measurement of the effect on citation inequality of differences in citation practices across scientific fields.

    Science.gov (United States)

    Crespo, Juan A; Li, Yunrong; Li, Yungrong; Ruiz-Castillo, Javier

    2013-01-01

    This paper has two aims: (i) to introduce a novel method for measuring which part of overall citation inequality can be attributed to differences in citation practices across scientific fields, and (ii) to implement an empirical strategy for making meaningful comparisons between the number of citations received by articles in 22 broad fields. The number of citations received by any article is seen as a function of the article's scientific influence, and the field to which it belongs. A key assumption is that articles in the same quantile of any field citation distribution have the same degree of citation impact in their respective field. Using a dataset of 4.4 million articles published in 1998-2003 with a five-year citation window, we estimate that differences in citation practices between the 22 fields account for 14% of overall citation inequality. Our empirical strategy is based on the strong similarities found in the behavior of citation distributions. We obtain three main results. Firstly, we estimate a set of average-based indicators, called exchange rates, to express the citations received by any article in a large interval in terms of the citations received in a reference situation. Secondly, using our exchange rates as normalization factors of the raw citation data reduces the effect of differences in citation practices to, approximately, 2% of overall citation inequality in the normalized citation distributions. Thirdly, we provide an empirical explanation of why the usual normalization procedure based on the fields' mean citation rates is found to be equally successful.

  17. Do citation systems represent theories of truth?

    Directory of Open Access Journals (Sweden)

    Betsy Van der Veer Martens

    2001-01-01

    Full Text Available This article suggests that the citation can be viewed not only as a "concept symbol" but also as a "boundary object". The scientific, legal, and patent citation systems in America are examined at the micro, meso, and macro levels in order to understand how they function as commodified theories of truth in contemporary knowledge representation. This approach also offers a meta-theoretical overview of existing citation research efforts in science, law, and technology that may be of interdisciplinary interest.

  18. Update on research software citation efforts

    Science.gov (United States)

    Allen, Alice

    2017-01-01

    Research software citation has received a lot of attention the past few years, as evidenced by numerous efforts that have discussed it, including WSSSPE, Force11 Software Citation Working Group, the Center for Open Science's Transparency and Openness Promotion (TOP) Guidelines, a workshop on Engineering Academic Software, and the CodeMeta project. This presentation briefly covers recent broad efforts to improve research transparency across disciplines through software availability and citation, and the Software Citation Principles that have recently been published as a result of the work done through Force11.

  19. The measurement of the effect on citation inequality of differences in citation practices across scientific fields

    National Research Council Canada - National Science Library

    Crespo, Juan A; Li, Yunrong; Li, Yungrong; Ruiz-Castillo, Javier

    2013-01-01

    This paper has two aims: (i) to introduce a novel method for measuring which part of overall citation inequality can be attributed to differences in citation practices across scientific fields, and (ii...

  20. Citation networks of related trials are often disconnected: implications for bidirectional citation searches.

    Science.gov (United States)

    Robinson, Karen A; Dunn, Adam G; Tsafnat, Guy; Glasziou, Paul

    2014-07-01

    Reports of randomized controlled trials (RCTs) should set findings within the context of previous research. The resulting network of citations would also provide an alternative search method for clinicians, researchers, and systematic reviewers seeking to base decisions on all available evidence. We sought to determine the connectedness of citation networks of RCTs by examining direct (referenced trials) and indirect (through references of referenced trials, etc) citation of trials to one another. Meta-analyses were used to create citation networks of RCTs addressing the same clinical questions. The primary measure was the proportion of networks where following citation links between RCTs identifies the complete set of RCTs, forming a single connected citation group. Other measures included the number of disconnected groups (islands) within each network, the number of citations in the network relative to the maximum possible, and the maximum number of links in the path between two connected trials (a measure of indirectness of citations). We included 259 meta-analyses with a total of 2,413 and a median of seven RCTs each. For 46% (118 of 259) of networks, the RCTs formed a single connected citation group-one island. For the other 54% of networks, where at least one RCT group was not cited by others, 39% had two citation islands and 4% (10 of 257) had 10 or more islands. On average, the citation networks had 38% of the possible citations to other trials (if each trial had cited all earlier trials). The number of citation islands and the maximum number of citation links increased with increasing numbers of trials in the network. Available evidence to answer a clinical question may be identified by using network citations created with a small initial corpus of eligible trials. However, the number of islands means that citation networks cannot be relied on for evidence retrieval. Copyright © 2014 Elsevier Inc. All rights reserved.

  1. Mining a Web Citation Database for Author Co-Citation Analysis.

    Science.gov (United States)

    He, Yulan; Hui, Siu Cheung

    2002-01-01

    Proposes a mining process to automate author co-citation analysis based on the Web Citation Database, a data warehouse for storing citation indices of Web publications. Describes the use of agglomerative hierarchical clustering for author clustering and multidimensional scaling for displaying author cluster maps, and explains PubSearch, a…

  2. Coastal Change Analysis Program (C-CAP) zone 37 and zone 46 1995 - 2005-era land cover change analysis (NODC Accession 0042593)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains the 1995 - 2005-era classifications of US Gulf Coast, zone 37 and zone 46 and can be used to analyze change. This imagery was collected as...

  3. Biomechanics Scholar Citations across Academic Ranks

    Directory of Open Access Journals (Sweden)

    Knudson Duane

    2015-11-01

    Full Text Available Study aim: citations to the publications of a scholar have been used as a measure of the quality or influence of their research record. A world-wide descriptive study of the citations to the publications of biomechanics scholars of various academic ranks was conducted.

  4. 41 CFR 128-1.152 - Citation.

    Science.gov (United States)

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Citation. 128-1.152 Section 128-1.152 Public Contracts and Property Management Federal Property Management Regulations System (Continued) DEPARTMENT OF JUSTICE 1-INTRODUCTION 1.1-Regulation System § 128-1.152 Citation. The JPMR will be...

  5. 1 CFR 22.2 - Authority citation.

    Science.gov (United States)

    2010-01-01

    ... 1 General Provisions 1 2010-01-01 2010-01-01 false Authority citation. 22.2 Section 22.2 General Provisions ADMINISTRATIVE COMMITTEE OF THE FEDERAL REGISTER PREPARATION, TRANSMITTAL, AND PROCESSING OF DOCUMENTS PREPARATION OF NOTICES AND PROPOSED RULES Notices § 22.2 Authority citation. The authority under...

  6. Citation graph based ranking in Invenio

    CERN Document Server

    Marian, Ludmila; Rajman, Martin; Vesely, Martin

    2010-01-01

    Invenio is the web-based integrated digital library system developed at CERN. Within this framework, we present four types of ranking models based on the citation graph that complement the simple approach based on citation counts: time-dependent citation counts, a relevancy ranking which extends the PageRank model, a time-dependent ranking which combines the freshness of citations with PageRank and a ranking that takes into consideration the external citations. We present our analysis and results obtained on two main data sets: Inspire and CERN Document Server. Our main contributions are: (i) a study of the currently available ranking methods based on the citation graph; (ii) the development of new ranking methods that correct some of the identified limitations of the current methods such as treating all citations of equal importance, not taking time into account or considering the citation graph complete; (iii) a detailed study of the key parameters for these ranking methods. (The original publication is ava...

  7. Academic Citation Practice: A Sinking Sheep?

    Science.gov (United States)

    Rekdal, Ole Bjørn

    2014-01-01

    An explosion in access to electronic databases and digital information is changing the way we view source citation. While the original purpose of referencing--showing the reader exactly where the author got his or her input--is clearly more important than ever, citation is increasingly taking on other roles, ones that have little to do with good…

  8. Gender and citation impact in management research

    DEFF Research Database (Denmark)

    Nielsen, Mathias Wullum

    2017-01-01

    This study investigates the extent to which a gender gap exists in the citation rates of management researchers. Based on a cross-sectional sample of 26,783 publications and 65,436 authorships, we illuminate possible differences in women’s and men’s average citation impact per paper, adjusting...... for covariation attributable to geographical setting, institutional reputation, self-citations, collaborative patterns and journal prestige. We find a marginal difference in citation impact in favor of women management scholars. Women are also slightly more likely than men to author articles among the top-10......% most cited in their field. Yet given the sensitivity of our results to uncertainties in the data, these variations should not be overgeneralized. In the large picture, differences in citation rates appear to be a negligible factor in the reproduction of gender inequalities in management research....

  9. Bibliometrics and citation analysis from the science citation index to cybermetrics

    CERN Document Server

    De Bellis, Nicola

    2009-01-01

    Bibliometrics and Citation Analysis: From the Science Citation Index to Cybermetrics offers a comprehensive overview of theories, techniques, concepts, and applications in the interdisciplinary and steadily growing field of bibliometrics. This book looks at bibliographic citation and citation networks by discussing the past, present, and future of bibliometrics, from its foundations in the Science Citation Index to its expansion into the World Wide Web. It is useful to those in every area of scholarship involved in the quantitative analysis of information exchanges, but also to general readers

  10. A reverse engineering approach to the suppression of citation biases reveals universal properties of citation distributions.

    Science.gov (United States)

    Radicchi, Filippo; Castellano, Claudio

    2012-01-01

    The large amount of information contained in bibliographic databases has recently boosted the use of citations, and other indicators based on citation numbers, as tools for the quantitative assessment of scientific research. Citations counts are often interpreted as proxies for the scientific influence of papers, journals, scholars, and institutions. However, a rigorous and scientifically grounded methodology for a correct use of citation counts is still missing. In particular, cross-disciplinary comparisons in terms of raw citation counts systematically favors scientific disciplines with higher citation and publication rates. Here we perform an exhaustive study of the citation patterns of millions of papers, and derive a simple transformation of citation counts able to suppress the disproportionate citation counts among scientific domains. We find that the transformation is well described by a power-law function, and that the parameter values of the transformation are typical features of each scientific discipline. Universal properties of citation patterns descend therefore from the fact that citation distributions for papers in a specific field are all part of the same family of univariate distributions.

  11. How citation distortions create unfounded authority: analysis of a citation network.

    Science.gov (United States)

    Greenberg, Steven A

    2009-07-20

    To understand belief in a specific scientific claim by studying the pattern of citations among papers stating it. A complete citation network was constructed from all PubMed indexed English literature papers addressing the belief that beta amyloid, a protein accumulated in the brain in Alzheimer's disease, is produced by and injures skeletal muscle of patients with inclusion body myositis. Social network theory and graph theory were used to analyse this network. Citation bias, amplification, and invention, and their effects on determining authority. The network contained 242 papers and 675 citations addressing the belief, with 220,553 citation paths supporting it. Unfounded authority was established by citation bias against papers that refuted or weakened the belief; amplification, the marked expansion of the belief system by papers presenting no data addressing it; and forms of invention such as the conversion of hypothesis into fact through citation alone. Extension of this network into text within grants funded by the National Institutes of Health and obtained through the Freedom of Information Act showed the same phenomena present and sometimes used to justify requests for funding. Citation is both an impartial scholarly method and a powerful form of social communication. Through distortions in its social use that include bias, amplification, and invention, citation can be used to generate information cascades resulting in unfounded authority of claims. Construction and analysis of a claim specific citation network may clarify the nature of a published belief system and expose distorted methods of social citation.

  12. The disastrous boomerang effects of "citation mania".

    Science.gov (United States)

    Perbal, Annick

    2017-08-07

    The recent publication of a commentary article by Dadkhah et al. (J Cell Commun Signal 11:181-185, 2017) which addressed issues raised by the citation of questionable scientific papers in current databases and the recent retraction of manuscripts dealing with the biological properties of the CCN1 protein by Lin et al. (J Biol Chem 291(53):27433, 2016) prompted us to examine how this situation reflects an evolution of the original citation system, endangering scientific communication. We argue that the increasing number of publication retractions that have been witnessed over several years is a direct consequence of the bias created by the inconsistency of citation metrics.

  13. Artifactual increase in journal self-citation.

    Science.gov (United States)

    Tighe, Patrick; Rice, Kevin J; Gravenstein, Nikolaus; Rice, Mark J

    2011-08-01

    After submission of a manuscript to a peer-reviewed anesthesia journal, several authors were asked to cite additional references from the journal to which they submitted. We hypothesized that there were differences among the anesthesiology journals in both the total number of self-citations and the proportion of self-citations to the total number of references in each manuscript for the years 2005 and 2010. We conducted a review of a sample of manuscripts from 2005 and 2010 to examine the number and rate of self-citations. As a secondary analysis, we reviewed impact factor (IF), rate of self-referencing, and contribution of self-citations to IF in the population of manuscripts published in 8 anesthesia journals between 2000 and 2009 using the ISI Journal Citation Reports. The number (P citations among the different journals were significantly different in 2005, with similar results for 2010 in the number (P citations. The mean range of number of self-citations ranged from 0.45 (95% confidence interval [CI], 0.06 to 0.84) to 3.95 (95% CI, 2.2 to 5.7) in 2005 and from 0.25 (95% CI, -0.05 to 0.55) to 4.5 (95% CI, 2.2 to 6.9) in 2010. On a per-journal basis, no difference in the number of self-citations was noted between 2005 and 2010. Analysis of the ISI Journal Citation Reports from 2000 to 2009 suggested a general decline in the contribution of self-cites to the IF over time for the aggregate journals (Spearman correlation coefficient (Rs) -0.25 (95% CI, -0.45 to -0.03), P = 0.02), with the exception of the journal in question (Rs = 0.59 (95% CI, -0.1 to 0.88), P = 0.05). Positive correlations were found between self-cited rate and IF (Rs 0.52, 95% CI, 0.34 to 0.66, P citations differed among anesthesia journals, the contribution of self-citation to IF has declined over time for most anesthesia journals. These results suggest periodic reassessment may be important to ensure that the publication process remains transparent and impartial to bias.

  14. 引用文獻分析與引用動機研究 Citation Analysis and Citation Motivation

    Directory of Open Access Journals (Sweden)

    Ming-yueh Tsay

    2001-06-01

    Full Text Available 無Citation analysis has been an important area of informetrics (or bibliometrics for severai decades. It mainly deals with the study of the relationship between citing and cited documents. A number of studies have been done to explore citation analysis and its applications. These studies have different opinions about the nature and the complexities of the citing process. Theories of citation have been debated for decades and can never be complete. By reviewing many empirical studies, this article describes the development and critique of citation analysis. especially focuses on the citation classifications, citation functions, citation concepts and citation motivations.

  15. Homophily and missing links in citation networks

    CERN Document Server

    Ciotti, Valerio; Nicosia, Vincenzo; Panzarasa, Pietro; Latora, Vito

    2015-01-01

    Citation networks have been widely used to study the evolution of science through the lenses of the underlying patterns of knowledge flows among academic papers, authors, research sub-fields, and scientific journals. Here we focus on citation networks to cast light on the salience of homophily, namely the principle that similarity breeds connection, for knowledge transfer between papers. To this end, we assess the degree to which citations tend to occur between papers that are concerned with seemingly related topics or research problems. Drawing on a large data set of articles published in the journals of the American Physical Society between 1893 and 2009, we propose a novel method for measuring the similarity between articles through the statistical validation of the overlap between their bibliographies. Results suggest that the probability of a citation made by one article to another is indeed an increasing function of the similarity between the two articles. Our study also enables us to uncover missing ci...

  16. Bioinformatics paper exceeds 500 in citation index

    OpenAIRE

    Whyte, Barry James

    2010-01-01

    A scientific paper that includes contributions from scientists at the Virginia Bioinformatics Institute at Virginia Tech, has exceeded 500 citations in the ISI Web of Knowledge, an online academic database that documents the impact of scientific publications.

  17. Data publications correlate with citation impact

    Directory of Open Access Journals (Sweden)

    Florian Leitner

    2016-09-01

    Full Text Available Neuroscience and molecular biology have been generating large datasets over the past years that are reshaping how research is being conducted. In their wake, open data sharing has been singled out as a major challenge for the future of research. We conducted a comparative study of citations of data publications in both fields, showing that the average publication tagged with a data-related term by the NCBI MeSH (Medical Subject Headings curators achieves a significantly larger citation impact than the average in either field. We introduce a new metric, the data article citation index (DAC-index, to identify the most prolific authors among those data-related publications. The study is fully reproducible from an executable Rmd (R Markdown script together with all the citation datasets. We hope these results can encourage authors to more openly publish their data.

  18. Citation Patterns to Traditional and Electronic Preprints

    Directory of Open Access Journals (Sweden)

    Ya-Hsiu Fu

    2003-09-01

    Full Text Available A preprint or an e-print is a research article made publicly available prior to formal publication in a peer-reviewed journal. It is a new form of scholarly communication. To understand how preprint and e-print are used, this paper examined their citation patterns. This research searched the “cited work” field in the SciSearch database. The results showed that more than 657,713 preprints were cited from 1974 to 2003. As to e-print, 109,492 citations to 15 arXiv.org archives from 1991 to 2003 were found. Since1991, the number of citations to preprints had been decreasing, while the e-prints cited had increased. The peak e-print citation rate of 3 years observed was comparable to that of print journals.[Article content in Chinese

  19. Mapping the Chinese Science Citation Database

    CERN Document Server

    Leydesdorff, Loet

    2009-01-01

    Methods developed for mapping the journal structures contained in aggregated journal-journal citations in the Science Citation Index are applied to the Chinese Science Citation Database of the Chinese Academy of Sciences. This database covers 991 journals, of which only 37 had originally English titles. Using factor-analytical and graph-analytical techniques we show that this data is dually structured. The main structure is the intellectual organization of the journals in journal groups (as in the international SCI), but the university-based journals provide an institutional layer that orients this structure towards practical ends (e.g., agriculture). The Chinese Science Citation Database exhibits the characteristics of Mode 2 in the production of scientific knowledge more than its western counterparts. The contexts of application lead to correlation (interfactorial complexity) among the components.

  20. Twitter Predicts Citation Rates of Ecological Research

    OpenAIRE

    Peoples, Brandon K.; Midway, Stephen R.; Dana Sackett; Abigail Lynch; Patrick B Cooney

    2016-01-01

    The relationship between traditional metrics of research impact (e.g., number of citations) and alternative metrics (altmetrics) such as Twitter activity are of great interest, but remain imprecisely quantified. We used generalized linear mixed modeling to estimate the relative effects of Twitter activity, journal impact factor, and time since publication on Web of Science citation rates of 1,599 primary research articles from 20 ecology journals published from 2012-2014. We found a strong po...

  1. Clustering of scientific citations in Wikipedia

    DEFF Research Database (Denmark)

    Nielsen, Finn Årup

    The instances of templates in Wikipedia form an interesting data set of structured information. Here I focus on the cite journal template that is primarily used for citation to articles in scientific journals. These citations can be extracted and analyzed: Non-negative matrix factorization...... is performed on a (article x journal) matrix resulting in a soft clustering of Wikipedia articles and scientific journals, each cluster more or less representing a scientific topic....

  2. Servomotors . (Latest citations from the Aerospace Database)

    Science.gov (United States)

    1997-01-01

    The bibliography contains citations concerning the design, testing, and application of servomotors. AC, DC, and brushless motor drives are discussed. Applications are examined, including use in hydraulic presses; teleprinters; machine tools; sewing machines; and servocontrol devices for instrumentation, robots, and aircraft control. Testing methods evaluate precision, vibration and vibration reduction, and stability of servomotors. (Contains 50-250 citations and includes a subject term index and title list.)

  3. Co-citation, bibliographic coupling and a characterization of lattice citation networks

    OpenAIRE

    Egghe, Leo; Rousseau, Ronald

    2002-01-01

    In this article we study directed, acyclic graphs. We introduce the head and tail order relations and study some of their properties. Recalling the notions of generalized bibliographic coupling and generalized co-citation, and introducing a new property, called the l - property, we come to a characterization of lattices. As document citation networks are concrete realizations of directed acyclic graphs all our results are directly applicable to citation analysis. bibliographic coupling; co...

  4. Citation Sentiment Analysis in Clinical Trial Papers.

    Science.gov (United States)

    Xu, Jun; Zhang, Yaoyun; Wu, Yonghui; Wang, Jingqi; Dong, Xiao; Xu, Hua

    2015-01-01

    In scientific writing, positive credits and negative criticisms can often be seen in the text mentioning the cited papers, providing useful information about whether a study can be reproduced or not. In this study, we focus on citation sentiment analysis, which aims to determine the sentiment polarity that the citation context carries towards the cited paper. A citation sentiment corpus was annotated first on clinical trial papers. The effectiveness of n-gram and sentiment lexicon features, and problem-specified structure features for citation sentiment analysis were then examined using the annotated corpus. The combined features from the word n-grams, the sentiment lexicons and the structure information achieved the highest Micro F-score of 0.860 and Macro-F score of 0.719, indicating that it is feasible to use machine learning methods for citation sentiment analysis in biomedical publications. A comprehensive comparison between citation sentiment analysis of clinical trial papers and other general domains were conducted, which additionally highlights the unique challenges within this domain.

  5. Eastern gas shales bibliography selected annotations: gas, oil, uranium, etc. Citations in bituminous shales worldwide

    Energy Technology Data Exchange (ETDEWEB)

    Hall, V.S. (comp.)

    1980-06-01

    This bibliography contains 2702 citations, most of which are annotated. They are arranged by author in numerical order with a geographical index following the listing. The work is international in scope and covers the early geological literature, continuing through 1979 with a few 1980 citations in Addendum II. Addendum I contains a listing of the reports, well logs and symposiums of the Unconventional Gas Recovery Program (UGR) through August 1979. There is an author-subject index for these publications following the listing. The second part of Addendum I is a listing of the UGR maps which also has a subject-author index following the map listing. Addendum II includes several important new titles on the Devonian shale as well as a few older citations which were not found until after the bibliography had been numbered and essentially completed. A geographic index for these citations follows this listing.

  6. Twitter Predicts Citation Rates of Ecological Research.

    Directory of Open Access Journals (Sweden)

    Brandon K Peoples

    Full Text Available The relationship between traditional metrics of research impact (e.g., number of citations and alternative metrics (altmetrics such as Twitter activity are of great interest, but remain imprecisely quantified. We used generalized linear mixed modeling to estimate the relative effects of Twitter activity, journal impact factor, and time since publication on Web of Science citation rates of 1,599 primary research articles from 20 ecology journals published from 2012-2014. We found a strong positive relationship between Twitter activity (i.e., the number of unique tweets about an article and number of citations. Twitter activity was a more important predictor of citation rates than 5-year journal impact factor. Moreover, Twitter activity was not driven by journal impact factor; the 'highest-impact' journals were not necessarily the most discussed online. The effect of Twitter activity was only about a fifth as strong as time since publication; accounting for this confounding factor was critical for estimating the true effects of Twitter use. Articles in impactful journals can become heavily cited, but articles in journals with lower impact factors can generate considerable Twitter activity and also become heavily cited. Authors may benefit from establishing a strong social media presence, but should not expect research to become highly cited solely through social media promotion. Our research demonstrates that altmetrics and traditional metrics can be closely related, but not identical. We suggest that both altmetrics and traditional citation rates can be useful metrics of research impact.

  7. Twitter Predicts Citation Rates of Ecological Research.

    Science.gov (United States)

    Peoples, Brandon K; Midway, Stephen R; Sackett, Dana; Lynch, Abigail; Cooney, Patrick B

    2016-01-01

    The relationship between traditional metrics of research impact (e.g., number of citations) and alternative metrics (altmetrics) such as Twitter activity are of great interest, but remain imprecisely quantified. We used generalized linear mixed modeling to estimate the relative effects of Twitter activity, journal impact factor, and time since publication on Web of Science citation rates of 1,599 primary research articles from 20 ecology journals published from 2012-2014. We found a strong positive relationship between Twitter activity (i.e., the number of unique tweets about an article) and number of citations. Twitter activity was a more important predictor of citation rates than 5-year journal impact factor. Moreover, Twitter activity was not driven by journal impact factor; the 'highest-impact' journals were not necessarily the most discussed online. The effect of Twitter activity was only about a fifth as strong as time since publication; accounting for this confounding factor was critical for estimating the true effects of Twitter use. Articles in impactful journals can become heavily cited, but articles in journals with lower impact factors can generate considerable Twitter activity and also become heavily cited. Authors may benefit from establishing a strong social media presence, but should not expect research to become highly cited solely through social media promotion. Our research demonstrates that altmetrics and traditional metrics can be closely related, but not identical. We suggest that both altmetrics and traditional citation rates can be useful metrics of research impact.

  8. CiTO, the Citation Typing Ontology

    Science.gov (United States)

    2010-01-01

    CiTO, the Citation Typing Ontology, is an ontology for describing the nature of reference citations in scientific research articles and other scholarly works, both to other such publications and also to Web information resources, and for publishing these descriptions on the Semantic Web. Citation are described in terms of the factual and rhetorical relationships between citing publication and cited publication, the in-text and global citation frequencies of each cited work, and the nature of the cited work itself, including its publication and peer review status. This paper describes CiTO and illustrates its usefulness both for the annotation of bibliographic reference lists and for the visualization of citation networks. The latest version of CiTO, which this paper describes, is CiTO Version 1.6, published on 19 March 2010. CiTO is written in the Web Ontology Language OWL, uses the namespace http://purl.org/net/cito/, and is available from http://purl.org/net/cito/. This site uses content negotiation to deliver to the user an OWLDoc Web version of the ontology if accessed via a Web browser, or the OWL ontology itself if accessed from an ontology management tool such as Protégé 4 (http://protege.stanford.edu/). Collaborative work is currently under way to harmonize CiTO with other ontologies describing bibliographies and the rhetorical structure of scientific discourse. PMID:20626926

  9. Twitter predicts citation rates of ecological research

    Science.gov (United States)

    Peoples, Brandon K.; Midway, Stephen R.; Sackett, Dana K.; Lynch, Abigail; Cooney, Patrick B.

    2016-01-01

    The relationship between traditional metrics of research impact (e.g., number of citations) and alternative metrics (altmetrics) such as Twitter activity are of great interest, but remain imprecisely quantified. We used generalized linear mixed modeling to estimate the relative effects of Twitter activity, journal impact factor, and time since publication on Web of Science citation rates of 1,599 primary research articles from 20 ecology journals published from 2012–2014. We found a strong positive relationship between Twitter activity (i.e., the number of unique tweets about an article) and number of citations. Twitter activity was a more important predictor of citation rates than 5-year journal impact factor. Moreover, Twitter activity was not driven by journal impact factor; the ‘highest-impact’ journals were not necessarily the most discussed online. The effect of Twitter activity was only about a fifth as strong as time since publication; accounting for this confounding factor was critical for estimating the true effects of Twitter use. Articles in impactful journals can become heavily cited, but articles in journals with lower impact factors can generate considerable Twitter activity and also become heavily cited. Authors may benefit from establishing a strong social media presence, but should not expect research to become highly cited solely through social media promotion. Our research demonstrates that altmetrics and traditional metrics can be closely related, but not identical. We suggest that both altmetrics and traditional citation rates can be useful metrics of research impact.

  10. Affordability Tradeoffs Under Uncertainty Using Epoch-Era Analysis

    Science.gov (United States)

    2013-09-30

    large numbers of eras can be constructed through combinatorics , probabilistic state transitions, and other means. Process 9 focuses on the analysis ...pmlkploba=obmloq=pbofbp= Affordability Tradeoffs Under Uncertainty Using Epoch-Era Analysis 30 September 2013 Dr. Donna H. Rhodes, Principal...AND SUBTITLE Affordability Tradeoffs Under Uncertainty Using Epoch-Era Analysis 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6

  11. Coauthorship and Citation Networks for Statisticians

    CERN Document Server

    Ji, Pengsheng

    2014-01-01

    We have collected and cleaned two network data sets: Coauthorship and Citation networks for statisticians. The data sets are based on all research papers published in four of the top journals in statistics from 2003 to the first half of 2012. We analyze the data sets from many different perspectives, focusing on (a) productivity, patterns and trends, (b) centrality, and (c) community structures, and present an array of interesting findings. For (a), we find that over the 10-year period, both the average number of papers per author and the fraction of self citations have been decreasing, but the proportion of distant citations has been increasing. These suggest that the statistics community has become increasingly more collaborative, competitive, and globalized, driven by the boom of online resources and Search Engines. For (b), we identify the most prolific, the most collaborative, and the most highly cited authors. We also identify a handful of "hot" papers and suggest "Variable Selection" and several other ...

  12. Analysis and visualization of citation networks

    CERN Document Server

    Zhao, Dangzhi

    2015-01-01

    Citation analysis-the exploration of reference patterns in the scholarly and scientific literature-has long been applied in a number of social sciences to study research impact, knowledge flows, and knowledge networks. It has important information science applications as well, particularly in knowledge representation and in information retrieval.Recent years have seen a burgeoning interest in citation analysis to help address research, management, or information service issues such as university rankings, research evaluation, or knowledge domain visualization. This renewed and growing interest

  13. Annual Journal citation indices: a comparative study

    CERN Document Server

    Khaleque, Abdul; Sen, Parongama

    2016-01-01

    We study the statistics of citations made to the indexed Science journals in the Journal Citation Reports during the period 2004-2013 using different measures. We consider different measures which quantify the impact of the journals. To our surprise, we find that the apparently uncorrelated measures, even when defined in an arbitrary manner, show strong correlations. This is checked over all the years considered. Impact factor being one of these measures, the present work raises the question whether it is actually a nearly perfect index as claimed often. In addition we study the distributions of the different indices which also behave similarly.

  14. An increasing citation black hole in ecology and evolution.

    Science.gov (United States)

    Rafferty, Anthony R; Wong, Bob B M; Chapple, David G

    2015-01-01

    Citations published in online supplementary material (OSM) are invisible to search engines used to calculate citation counts, potentially negatively impacting popular performance indices and journal rankings that rely on citation counts for quantification. To quantify the number of citations that are "lost" in OSM, we conducted a systematic survey of supplementary citation practices in four high-ranking, society-run journals from two geographical locations (Europe and North America). In 2012, 6% of all citations were only included in the OSM and were therefore not included in citation counts. We found a significant increase in the number of references invisible to citation counting services over the last two decades. A solution to this problem is urgently required and could include journal indexing of citations in OSM or the inclusion of all references in the main text.

  15. Gender Differences in Synchronous and Diachronous Self-citations

    Energy Technology Data Exchange (ETDEWEB)

    Ghiasi, G.; Lariviere, V.; Sugimoto, C.

    2016-07-01

    Citation rates are increasingly used as a currency of science, providing a basis to reward a scientist. Self-citations, an inevitable part of scholarly communication, may contribute to the inflation of citation counts and impose a considerable impact on research evaluation and academic career advancements. Self-citations are classified into two types in this study: synchronous self-citations (self-citations an author gives) and diachronous self-citations (selfcitations an author receives). The main objective of this paper is to provide a comprehensive gendered analysis of synchronous and diachronous self-citations across all scientific disciplines. For this purpose, citation data of 12,725,171 articles published in 2008-2014 are extracted from Web of Science and are further scrutinized for articles of each gender. The findings reveal that men receive citations from their own papers at a higher rate than their women counterparts. They also tend to give more citations to their own publications. Gender gap in citation impact decreases when first-author’s diachronous citations are eliminated in the impact analysis. However, the gap does not vary when all-authors’ diachronous citations are excluded. The results of this research is important for effective gender-related policy-making in the science and technology arena. (Author)

  16. An analysis of the citation climate in neurosurgical literature and description of an interfield citation metric.

    Science.gov (United States)

    Madhugiri, Venkatesh S; Sasidharan, Gopalakrishnan M; Subeikshanan, Venkatesan; Dutt, Akshat; Ambekar, Sudheer; Strom, Shane F

    2015-05-01

    The citation climate in neurosurgical literature is largely undefined. To study the patterns of citation of articles in neurosurgery as a scientific field and to evaluate the performance of neurosurgery journals vis-à-vis journals in other fields. References cited in articles published in neurosurgery journals during a specified time period were analyzed to determine the age of articles cited in neurosurgical literature. In the next analysis, articles published in neurosurgical journals were followed up for 13 years after publication. The postpublication citation patterns were analyzed to determine the time taken to reach the maximally cited state and the time when articles stopped being cited. The final part of the study dealt with the evolution of a new interfield citation metric, which was then compared with other standardized citation indexes. The mean ± SD age of articles cited in neurosurgical literature was 11.6 ± 11.7 years (median, 8 years). Citations received by articles gradually increased to a peak (at 6.25 years after publication in neurosurgery) and then reached a steady state; articles were still cited well into the late postpublication period. Neurosurgical articles published in nonneurosurgical high-impact journals were cited more highly than those in neurosurgical journals, although they took approximately the same time to reach the maximally cited state (7.2 years). The most cited pure neurosurgery journal was Neurosurgery. The citation climate for neurosurgery was adequately described. The interfield citation metric was able to ensure cross-field comparability of journal performance. G1, group 1G2, group 2G3, group 3G4, group 4IFCM, interfield citation metric.

  17. High Citation of Iranian Coauthored articles in comparison with single authored ones: does it link with self-citation

    Directory of Open Access Journals (Sweden)

    Seaid Nazarian

    2012-10-01

    Full Text Available The aim of this research was to investigate the effect of co-authorship and self-citation on the citation rates of Iranian indexed articles in Web of Science (WoS. Research population included Iranian indexed articles in WoS in 2007 which had been received at least one citation. Numbers of articles in the time of research (October & November 2010 was 7355, which 390 of them, using stratified random sampling, was selected as sample. Research results showed that co-authored articles have received more citations than single-authored ones and this difference was statistically significant. On the other hand, self-citation exclusion has significantly reduced the citation rates of both co-authored and single-authored articles. After self-citation exclusion, existing difference between citation rates of co-authored and single-authored articles lost its significance. So, it can be concluded that self-citation exclusion led to reduction of citation rates of Iranian indexed articles in WoS, but this exclusion affected co-authored articles citation rates more than single-authored ones. In other words, high citation of Iranian co-authored articles in comparison with single-authored articles has been affected mainly by self-citation, not by foreign citation. This finding, which was our contribution, contradicted with results of previous researches.

  18. Exploiting citation contexts for physics retrieval

    DEFF Research Database (Denmark)

    Dabrowska, Anna; Larsen, Birger

    2015-01-01

    The text surrounding citations within scientific papers may contain terms that usefully describe cited documents and can benefit retrieval. We present a preliminary study that investigates appending ci- tation contexts from citing documents to cited documents in the iSearch test collection. We...

  19. The citation impact of hydrology journals

    Science.gov (United States)

    Clark, Martyn P.; Hanson, R. Brooks

    2017-06-01

    We examine a suite of journal-level productivity and citation statistics for six leading hydrology journals in order to help authors understand the robustness and meaning of journal impact factors. The main results are (1) the probability distribution of citations is remarkably homogenous across hydrology journals; (2) hydrology papers tend to have a long-lasting impact, with a large fraction of papers cited after the 2 year window used to calculate the journal impact factor; and (3) journal impact factors are characterized by substantial year-to-year variability (especially for smaller journals), primarily because a small number of highly cited papers have a large influence on the journal impact factor. Consequently, the ranking of hydrology journals with respect to the journal impact factor in a given year does not have much information content. These results highlight problems in using citation data to evaluate hydrologic science. We hope that this analysis helps authors better understand journal-level citation statistics, and also helps improve research assessments in institutions and funding agencies.

  20. Citation of serials and some books

    NARCIS (Netherlands)

    Steenis-Kruseman, van M.J.

    1955-01-01

    The abbreviations used are in general in conformity with common usage in botanical taxonomy, though, where possible, the citation has been limited to the minimum necessary for strict taxonomic reference, e.g.: ‘F.v.M. Fragm.’—for F. VON MUELLER, Fragmenta phytographiae Australiae, ‘Walp. Ann.’—for

  1. Citation: A Library Instruction Computer Game.

    Science.gov (United States)

    Koelewyn, Arie C.; Corby, Katherine

    1982-01-01

    A library instruction computer game created at Newberry College, South Carolina challenges players' skill at using the "Readers' Guide," and by noting elapsed time needed to create a bibliography of citations on a given topic, encourages an increase in skill. Computer equipment used, illustrative examples, and five references are noted.…

  2. Data Citation Concept for CMIP6

    Science.gov (United States)

    Stockhause, M.; Toussaint, F.; Lautenschlager, M.; Lawrence, B.

    2015-12-01

    There is a broad consensus among data centers and scientific publishers on Force 11's 'Joint Declaration of Data Citation Principles'. To put these principles into operation is not always as straight forward. The focus for CMIP6 data citations lies on the citation of data created by others and used in an analysis underlying the article. And for this source data usually no article of the data creators is available ('stand-alone data publication'). The planned data citation granularities are model data (data collections containing all datasets provided for the project by a single model) and experiment data (data collections containing all datasets for a scientific experiment run by a single model). In case of large international projects or activities like CMIP, the data is commonly stored and disseminated by multiple repositories in a federated data infrastructure such as the Earth System Grid Federation (ESGF). The individual repositories are subject to different institutional and national policies. A Data Management Plan (DMP) will define a certain standard for the repositories including data handling procedures. Another aspect of CMIP data, relevant for data citations, is its dynamic nature. For such large data collections, datasets are added, revised and retracted for years, before the data collection becomes stable for a data citation entity including all model or simulation data. Thus, a critical issue for ESGF is data consistency, requiring thorough dataset versioning to enable the identification of the data collection in the cited version. Currently, the ESGF is designed for accessing the latest dataset versions. Data citation introduces the necessity to support older and retracted dataset versions by storing metadata even beyond data availability (data unpublished in ESGF). Apart from ESGF, other infrastructure components exist for CMIP, which provide information that has to be connected to the CMIP6 data, e.g. ES-DOC providing information on models and

  3. Workers in the era of globalization

    International Development Research Centre (IDRC) Digital Library (Canada)

    16 déc. 2013 ... India Labour and Employment Report 2014: Workers in the era of globalization ... Arjan de Haan, of IDRC's Employment and Growth program, praised the report's identification of the astonishing realities and opportunities facing India's labour market, and how they highlight the urgent need for job creation in ...

  4. Using incomplete citation data for MEDLINE results ranking.

    Science.gov (United States)

    Herskovic, Jorge R; Bernstam, Elmer V

    2005-01-01

    Information overload is a significant problem for modern medicine. Searching MEDLINE for common topics often retrieves more relevant documents than users can review. Therefore, we must identify documents that are not only relevant, but also important. Our system ranks articles using citation counts and the PageRank algorithm, incorporating data from the Science Citation Index. However, citation data is usually incomplete. Therefore, we explore the relationship between the quantity of citation information available to the system and the quality of the result ranking. Specifically, we test the ability of citation count and PageRank to identify "important articles" as defined by experts from large result sets with decreasing citation information. We found that PageRank performs better than simple citation counts, but both algorithms are surprisingly robust to information loss. We conclude that even an incomplete citation database is likely to be effective for importance ranking.

  5. GPM GROUND VALIDATION UND CITATION NAVIGATION DATA GCPEX V2

    Data.gov (United States)

    National Aeronautics and Space Administration — The GPM Ground Validation UND Citation Navigation Data GCPEx V2 dataset was collected by the Cessna Citation II Research, which was aircraft, owned, and operated by...

  6. GPM Ground Validation UND Citation Navigation Data OLYMPEX V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The GPM Ground Validation UND Citation Navigation Data OLYMPEX dataset supplies navigation data collected by the Cessna Citation II aircraft for flights that...

  7. Citation analysis of the scientific publications of Britton Chance in ISI citation indexes

    Directory of Open Access Journals (Sweden)

    Lin Z. Li

    2014-03-01

    Full Text Available Britton Chance was a pioneer in many scientific fields such as enzymatic reaction kinetics, bioenergetics, metabolism, in vivo NMR, and biophotonics. As an engineer, physical chemist, physicist, physiologist, biophysicist, biochemist, innovator and educator, he had worked in diversified fields over extended periods between 1926 until his death in 2010, at the age of 97. In order to illustrate his scientific career and great impact on research from a new perspective, we employ scientometric analysis tools to analyze the publications of Britton Chance with data downloaded from the ISI Citation Indexes in April 2013. We included articles, reviews and proceeding papers but excluded meeting abstracts. In total, we obtained 1023 publication records with 1236 authors in 266 journals with 17,114 citations from 1945 to 2013. We show the annual publications and citations that Britton Chance received from 1945 to 2013, and generate HistCite maps on the basis of the global citations (GCS and local (self citations (LCS to show the citation relationships among the top-30 publications of Britton Chance. Metabolism and the development of physical methods to probe it appear to be the connecting thread of the lifelong research of Britton Chance. Furthermore, we generate the journal map and co-authorship map to show the broad scope of research topics and collaborators and the high impacts of the scientific oeuvre of Britton Chance ranging from physics, engineering, chemistry and biology to medicine.

  8. Analyzing Data Citations to Assess the Scientific and Societal Value of Scientific Data

    Science.gov (United States)

    Chen, R. S.; Downs, R. R.

    2012-12-01

    Stakeholders in the creation, distribution, support, funding, and use of scientific data can benefit by understanding the value that the data have for society and science. For decades, the scientific community has been using citations of articles in the published scientific literature as one of the primary measures used for evaluating the performance of scientists, departments, institutions, and scientific disciplines. Similarly, citations in the published literature of scientific data may be useful for measuring and assessing the value of the scientific data and the performance of the individuals, projects, programs, and organizations that have contributed to the data and their use. The results of citation analysis and other assessments of the value of data also can contribute to planning for future data collection, development, distribution, and preservation efforts. The planned release of new data citation indexes and the more widespread adoption of unique data identifiers and automated attribution mechanisms have the potential to improve significantly the capabilities for analyzing citations of scientific data. In addition, rapid developments in the systems and capabilities for disseminating data, along with education and workforce development on the importance of data attribution and on techniques for data citation, can improve practices for citing scientific data. Such practices need to lead not only to better aggregate statistics about data citation, but also to improved characterization and understanding of the impact of data use in terms of the benefits for science and society. Analyses of citations in the scientific literature were conducted for data that were distributed by an interdisciplinary scientific data center during a five-year period (1997 - 2011), to identify the scientific fields represented by the journals and books in which the data were cited. Secondary citation analysis also was conducted for a sample of scientific publications that used

  9. Cosmology. (Latest Citations from the NTIS Bibliographic Database)

    Science.gov (United States)

    1995-12-01

    The bibliography contains citations concerning theories and explorations into the origin of the universe. Citations focus on various genesis models including perturbation, unified field and string theories. Large scale structure of the universe, galactic evolution, quantum gravity, dark matter, black holes, entropy, Feynman diagrams and multi-dimensional systems represent areas of coverage. The citations include theoretical investigations and astronomical observations. (Contains 50-250 citations and includes a subject term index and title list.)

  10. Plenary presentations and public citations from The American Association for Thoracic Surgery.

    Science.gov (United States)

    Kamel, Mohamed; Terasaki, Yusuke; Adusumilli, Prasad S; Stiles, Brendon M

    2016-01-01

    We examined the impact of work presented in the plenary sessions at the meeting of The American Association for Thoracic Surgery (AATS), by determining how frequently the published papers corresponding to the session presentations during the past 20 years, were cited; those that were most cited were identified. We reviewed the AATS meeting programs from the 20-year period from 1994 to 2014 and identified the corresponding publications in the Journal of Thoracic and Cardiovascular Surgery (JTCVS) from all abstracts presented at the plenary sessions. Papers were categorized as cardiac, thoracic, or congenital. References were evaluated for subsequent citation in the Web of Science (WoS), and Google Scholar (GS). We determined both the median number of citations overall, and per year. For comparison, we evaluated numbers of citations in WoS from current JTCVS papers in issues containing the 3 most-cited plenary session papers. Among 195 published plenary papers, the median number of citations in WoS and GS was 49 and 76, respectively. The median total number of citations in WoS was as follows: 51 for cardiac-category papers (n = 105); 61 for thoracic (n = 55), and 41 for congenital (n = 35). These values were higher than the median total number of citations for contemporary nonplenary JTCVS papers: cardiac (22, n = 55; P citations per year since publication for plenary publications was 5.9 (cardiac), 6 (thoracic), and 3.7 (congenital), respectively. Publications corresponding to the plenary sessions of the AATS are highly cited and include some of the seminal studies in our field in the past 20 years. Copyright © 2016 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.

  11. Individual, country, and journal self-citation in soil science

    NARCIS (Netherlands)

    Minasny, B.; Hartemink, A.E.; McBratney, A.

    2010-01-01

    Self-citation is common practice in most sciences but it differs between disciplines, countries and journals. Here we report on self-citation in soil science. We investigated citations in the major soil science journals and conducted an analysis on a country basis and for the subdiscipline of

  12. Observations on Citation Practices in Mathematics Education Research. Research Commentary

    Science.gov (United States)

    Leatham, Keith R.

    2015-01-01

    The author argues that the field of mathematics education as a whole can and should improve its citation practices. He discusses 4 forms of citation practice and considers how they vary with respect to transparency of voice. He also discusses several ways that citation practices may misrepresent cited authors' ideas. He concludes with suggestions…

  13. Ranking Economics and Econometrics ISI Journals by Quality Weighted Citations

    NARCIS (Netherlands)

    C-L. Chang (Chia-Lin); M.J. McAleer (Michael)

    2014-01-01

    markdownabstract__Abstract__ The paper analyses academic journal quality and impact using quality weighted citations that are based on the widely-used Thomson Reuters ISI Web of Science citations database (ISI). A recently developed Index of Citations Quality (ICQ), based on quality weighted

  14. Rankings and Trends in Citation Patterns of Communication Journals

    Science.gov (United States)

    Levine, Timothy R.

    2010-01-01

    Journal citations are increasingly used as indicators of the impact of scholarly work. Because many communication journals are not included in the Social Science Citation Index (SSCI), SSCI impact factors are potentially misleading for communication journals. The current paper reports a citation analysis of 30 communication journals based on…

  15. 32 CFR 935.125 - Citation in place of arrest.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Citation in place of arrest. 935.125 Section 935... INSULAR REGULATIONS WAKE ISLAND CODE Peace Officers § 935.125 Citation in place of arrest. In any case in which a peace officer may make an arrest without a warrant, he may issue and serve a citation if he...

  16. 1 CFR 5.8 - Form of citation.

    Science.gov (United States)

    2010-01-01

    ... 1 General Provisions 1 2010-01-01 2010-01-01 false Form of citation. 5.8 Section 5.8 General Provisions ADMINISTRATIVE COMMITTEE OF THE FEDERAL REGISTER THE FEDERAL REGISTER GENERAL § 5.8 Form of citation. Without prejudice to any other form of citation, Federal Register material may be cited by volume...

  17. 37 CFR 41.12 - Citation of authority.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Citation of authority. 41.12... COMMERCE PRACTICE BEFORE THE BOARD OF PATENT APPEALS AND INTERFERENCES General Provisions § 41.12 Citation.... (a) Citations to authority must include: (1) For any United States Supreme Court decision, a United...

  18. 36 CFR 1150.48 - PER: Citation, answer, amendment.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false PER: Citation, answer...; Pleadings and Motions § 1150.48 PER: Citation, answer, amendment. (a) Unless otherwise specified, other..., the citation shall request PER when it appears to the Executive Director that immediate and...

  19. 47 CFR 1.14 - Citation of Commission documents.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Citation of Commission documents. 1.14 Section... Rules of Practice and Procedure General § 1.14 Citation of Commission documents. The appropriate reference to the FCC Record shall be included as part of the citation to any document that has been printed...

  20. Unraveling Scientific Impact : Citation Types in Marketing Journals

    NARCIS (Netherlands)

    S. Stremersch (Stefan); N.M.A. Camacho (Nuno); S. Vanneste (Sofie); I.W.J. Verniers (Isabel)

    2014-01-01

    textabstractThe number of citations a paper receives is the most commonly used measure of scientific impact. In this paper, we study not only the number but also the type of citations that 659 marketing articles generated. We discern five citation types: application, affirmation, negation, review

  1. Local Citation Analysis of Graduate Biology Theses: Collection Development Implications

    Science.gov (United States)

    Miller, Laura Newton

    2011-01-01

    This paper will focus on the citation analysis of graduate masters theses from Carleton University's Biology Department with implications for library collection management decisions. Twenty-five masters theses were studied to determine citation types and percentages, ranking of journals by frequency of citation and by number of authors citing, and…

  2. Predicting the long-term citation impact of recent publications

    NARCIS (Netherlands)

    Stegehuis, Clara; Litvak, Nelli; Waltman, Ludo

    2015-01-01

    A fundamental problem in citation analysis is the prediction of the long-term citation impact of recent publications. We propose a model to predict a probability distribution for the future number of citations of a publication. Two predictors are used: The impact factor of the journal in which a

  3. A Ten Year Citation Analysis of Major Australian Research Institutions

    Science.gov (United States)

    Batterham, Robin J.

    2011-01-01

    The introduction of the Excellence in Research for Australia scheme has heightened debate amongst research institutions over the use of metrics such as citations, especially given the ready availability of citation data. An analysis is presented of the citation performance of nine Australian universities and the Commonwealth Scientific, Industrial…

  4. Predicting the long-term citation impact of recent publications

    NARCIS (Netherlands)

    Stegehuis, Clara; Litvak, Nelli; Waltman, Ludo

    A fundamental problem in citation analysis is the prediction of the long-term citation impact of recent publications. We propose a model to predict a probability distribution for the future number of citations of a publication. Two predictors are used: the impact factor of the journal in which a

  5. Revistas Iberoamericanas de Educación en SciELO Citation Index y Emerging Source Citation Index

    National Research Council Canada - National Science Library

    Rafael Repiso; Evaristo Jiménez-Contreras; Ignacio Aguaded

    2017-01-01

    El presente trabajo es un análisis de las revistas de Educación iberoamericanas en SciELO Citation Index y Emerging Source Citation Index, dos de los nuevos productos incorporados a Web of Science...

  6. Like a Hurricane: A Citation Analysis of Emergency Management Scholarly Literature

    Science.gov (United States)

    Noe, Jennifer; Furay, Julia

    2013-01-01

    This bibliometric study used citation analysis to uncover citing characteristics in the burgeoning academic field of emergency management. Of the 281 degree programs listed by the Federal Emergency Management Agency nationwide, those at community colleges accounted for 17% of the total. Using the interdisciplinary database of Academic Search…

  7. Geographic trends of scientific output and citation practices in psychiatry.

    Science.gov (United States)

    Igoumenou, Artemis; Ebmeier, Klaus; Roberts, Nia; Fazel, Seena

    2014-12-06

    Measures of research productivity are increasingly used to determine how research should be evaluated and funding decisions made. In psychiatry, citation patterns within and between countries are not known, and whether these differ by choice of citation metric. In this study, we examined publication characteristics and citation practices in articles published in 50 Web of Science indexed psychiatric and relevant clinical neurosciences journals, between January 2004 and December 2009 comprising 51,072 records that produced 375,962 citations. We compared citation patterns, including self-citations, between countries using standard x(2) tests. We found that most publications came from the USA, with Germany being second and UK third in productivity. USA articles received most citations and the highest citation rate with an average 11.5 citations per article. The UK received the second highest absolute number of citations, but came fourth by citation rate (9.7 citations/article), after the Netherlands (11.4 citations/article) and Canada (9.8 citations/article). Within the USA, Harvard University published most articles and these articles were the most cited, on average 20.0 citations per paper. In Europe, UK institutions published and were cited most often. The Institute of Psychiatry/Kings College London was the leading institution in terms of number of published records and overall citations, while Oxford University had the highest citation rate (18.5 citations/record). There were no differences between the self-citation practices of American and European researchers. Articles that examined some aspect of treatment in psychiatry were the most published. In terms of diagnosis, papers about schizophrenia-spectrum disorders were the most published and the most cited. We found large differences between and within countries in terms of their research productivity in psychiatry and clinical neuroscience. In addition, the ranking of countries and institutions differed widely

  8. Geopressured geothermal bibliography. Volume 1 (citation extracts)

    Energy Technology Data Exchange (ETDEWEB)

    Hill, T.R.; Sepehrnoori, K.

    1981-08-01

    This bibliography was compiled by the Center for Energy Studies at The University of Texas at Austin to serve as a tool for researchers in the field of geopressured geothermal energy resources. The bibliography represents citations of papers on geopressured geothermal energy resources over the past eighteen years. Topics covered in the bibliography range from the technical aspects of geopressured geothermal reservoirs to social, environmental, and legal aspects of tapping those reservoirs for their energy resources. The bibliography currently contains more than 750 entries. For quick reference to a given topic, the citations are indexed into five divisions: author, category, conference title, descriptor, and sponsor. These indexes are arranged alphabetically and cross-referenced by page number.

  9. Citation classics in periodontology: a controlled study.

    Science.gov (United States)

    Nieri, Michele; Saletta, Daniele; Guidi, Luisa; Buti, Jacopo; Franceschi, Debora; Mauro, Saverio; Pini-Prato, Giovanpaolo

    2007-04-01

    The aims of this study were to identify the most cited articles in Periodontology published from January 1990 to March 2005; and to analyse the differences between citation Classics and less cited articles. The search was carried out in four international periodontal journals: Journal of Periodontology, Journal of Clinical Periodontology, International Journal of Periodontics and Restorative Dentistry and Journal of Periodontal Research. The Classics, that are articles cited at least 100 times, were identified using the Science Citation Index database. From every issue of the journals that contained a Classic, another article was randomly selected and used as a Control. Fifty-five Classics and 55 Controls were identified. Classic articles were longer, used more images, had more authors, and contained more self-references than Controls. Moreover Classics had on the average a bigger sample size, often dealt with etiopathogenesis and prognosis, but were rarely controlled or randomized studies. Classic articles play an instructive role, but are often non-Controlled studies.

  10. Weathering the storm: how can thoracic surgery training programs meet the new challenges in the era of less-invasive technologies?

    Science.gov (United States)

    Prasad, Sunil M; Massad, Malek G; Chedrawy, Edgar G; Snow, Norman J; Yeh, Joannie T; Lele, Himalaya; Tarakji, Ahmed; Maniar, Hersh S; Herren, Heather; Gay, William A

    2009-06-01

    The introduction of new technologies has shifted some resident index procedures to nonsurgical specialists. We examined the operative case volume of thoracic surgery residents during the last 6 years to objectively identify changes and trends. Program and resident data from 2002 to 2007 were entered into a database and analyzed. Program match information was obtained from the National Resident Matching Program. Resident operative experience and board examination results were obtained from the American Board of Thoracic Surgery. A total of 795 residents qualified for the written American Board of Thoracic Surgery examination; 627 residents graduated from 2-year programs, and 168 residents graduated from 3-year programs. The total number of resident cases was higher in 3-year programs compared with 2-year programs in all 10 index categories studied (P Training programs have so far weathered the storm by maintaining index volume with a new case mix, but significant trends in revascularization procedures are concerning. This study indicates a significant advantage in case volume and board pass rates among 3-year programs. Thoracic residency programs should be reorganized so that the number of residents does not exceed the capacity of the program to provide a meaningful experience.

  11. Author self-citation in the general medicine literature.

    Science.gov (United States)

    Kulkarni, Abhaya V; Aziz, Brittany; Shams, Iffat; Busse, Jason W

    2011-01-01

    Author self-citation contributes to the overall citation count of an article and the impact factor of the journal in which it appears. Little is known, however, about the extent of self-citation in the general clinical medicine literature. The objective of this study was to determine the extent and temporal pattern of author self-citation and the article characteristics associated with author self-citation. We performed a retrospective cohort study of articles published in three high impact general medical journals (JAMA, Lancet, and New England Journal of Medicine) between October 1, 1999 and March 31, 2000. We retrieved the number and percentage of author self-citations received by the article since publication, as of June 2008, from the Scopus citation database. Several article characteristics were extracted by two blinded, independent reviewers for each article in the cohort and analyzed in multivariable linear regression analyses. Since publication, author self-citations accounted for 6.5% (95% confidence interval 6.3-6.7%) of all citations received by the 328 articles in our sample. Self-citation peaked in 2002, declining annually thereafter. Studies with more authors, in cardiovascular medicine or infectious disease, and with smaller sample size were associated with more author self-citations and higher percentage of author self-citation (all p≤0.01). Approximately 1 in 15 citations of articles in high-profile general medicine journals are author self-citations. Self-citation peaks within about 2 years of publication and disproportionately affects impact factor. Studies most vulnerable to this effect are those with more authors, small sample size, and in cardiovascular medicine or infectious disease.

  12. Citation Patterns of Engineering, Statistics, and Computer Science Researchers: An Internal and External Citation Analysis across Multiple Engineering Subfields

    Science.gov (United States)

    Kelly, Madeline

    2015-01-01

    This study takes a multidimensional approach to citation analysis, examining citations in multiple subfields of engineering, from both scholarly journals and doctoral dissertations. The three major goals of the study are to determine whether there are differences between citations drawn from dissertations and those drawn from journal articles; to…

  13. "'Jackin’ for Beats'": DJing for Citation Critique

    Directory of Open Access Journals (Sweden)

    Todd Craig

    2013-10-01

    Full Text Available A challenge in teaching English composition is helping students envision plagiarism as “borrowing” – showing love to author(s and/or text(s that further their argument(s, versus “stealing” – biting someone’s style and words. Alastair Pennycook (1996 and Sarah Wakefield (2006 have contributed pieces to the elaborate plagiarism/citation puzzle, while Houston Baker situated the hip-hop DJ in seminal text Black Studies, Rap and the Academy (1993. Merging these moments introduces critical questions: Did Diddy invent “the remix” or become the illest beat-biter ever? How did DJ/Producers Pete Rock and Large Professor pay homage to previous musical genres to further hip-hop remix production without just taking 4-8 bar samples, copying sources and claiming unethical ownership? And how can this discussion provide students a window into citation conversations? This article will remix these “texts” to introduce the idea of DJ Rhetoric to discuss plagiarism. Through the lens of the hip-hop DJ in writing classrooms, one can foster an appreciation of the difference between “love and theft” in student citation. This article will couple examples from hip-hop music/culture while simultaneously remixing interviews from various hip-hop DJ/producers to help answer these difficult questions.

  14. Towards a simple mathematical theory of citation distributions.

    Science.gov (United States)

    Katchanov, Yurij L

    2015-01-01

    The paper is written with the assumption that the purpose of a mathematical theory of citation is to explain bibliometric regularities at the level of mathematical formalism. A mathematical formalism is proposed for the appearance of power law distributions in social citation systems. The principal contributions of this paper are an axiomatic characterization of citation distributions in terms of the Ekeland variational principle and a mathematical exploration of the power law nature of citation distributions. Apart from its inherent value in providing a better understanding of the mathematical underpinnings of bibliometric models, such an approach can be used to derive a citation distribution from first principles.

  15. A small world of citations? The influence of collaboration networks on citation practices.

    Directory of Open Access Journals (Sweden)

    Matthew L Wallace

    Full Text Available This paper examines the proximity of authors to those they cite using degrees of separation in a co-author network, essentially using collaboration networks to expand on the notion of self-citations. While the proportion of direct self-citations (including co-authors of both citing and cited papers is relatively constant in time and across specialties in the natural sciences (10% of references and the social sciences (20%, the same cannot be said for citations to authors who are members of the co-author network. Differences between fields and trends over time lie not only in the degree of co-authorship which defines the large-scale topology of the collaboration network, but also in the referencing practices within a given discipline, computed by defining a propensity to cite at a given distance within the collaboration network. Overall, there is little tendency to cite those nearby in the collaboration network, excluding direct self-citations. These results are interpreted in terms of small-scale structure, field-specific citation practices, and the value of local co-author networks for the production of knowledge and for the accumulation of symbolic capital. Given the various levels of integration between co-authors, our findings shed light on the question of the availability of 'arm's length' expert reviewers of grant applications and manuscripts.

  16. On the evolution and utility of annual citation indices

    CERN Document Server

    Khaleque, Abdul; Sen, Parongama

    2014-01-01

    We study the statistics of citations made to the top ranked indexed journals for Science and Social Science databases in the Journal Citation Reports using different measures. Total annual citation and impact factor, as well as a third measure called the annual citation rate are used to make the detailed analysis. We observe that the distribution of the annual citation rate has an universal feature - it shows a maximum at the rate scaled by half the average, irrespective of how the journals are ranked, and even across Science and Social Science journals, and fits well to log-Gumbel distribution. Correlations between different quantities are studied and a comparative analysis of the three measures is presented. The newly introduced annual citation rate factor helps in understanding the effect of scaling the number of citation by the total number of publications. The effect of the impact factor on authors contributing to the journals as well as on editorial policies is also discussed.

  17. Citation patterns and trends of systematic reviews about mindfulness.

    Science.gov (United States)

    Chiesa, Alberto; Fazia, Teresa; Bernardinelli, Luisa; Morandi, Gabriella

    2017-08-01

    We performed a citation analysis of the literature about mindfulness aimed at describing the most significant topics and the impact of more relevant papers. We classified 128 systematic reviews about mindfulness-based intervention retrieved in Scopus according to their object, the population included and the type of mindfulness proposed. The citation counting was reported. The cumulative citation numbers per chronological years and article life were analyzed thorough a linear regression model. 1) We observed a general increase in the number of reviews published from 2003 to 2016; 2) two reviews collected the 33% of the overall citations; 3) citation counting for clinical and mixed population collected the 90% of total citations; 4) clinical reviews had higher cumulative citation per publication/year growth. As mindfulness research advances, higher attention should be given to the mechanisms by which mindfulness interventions work so as to provide fruitful insights for future research. Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. A citation-analysis of economic research institutes.

    Science.gov (United States)

    Ketzler, Rolf; Zimmermann, Klaus F

    2013-06-01

    The citation analysis of the research output of the German economic research institutes presented here is based on publications in peer-reviewed journals listed in the Social Science Citation Index for the 2000-2009 period. The novel feature of the paper is that a count data model quantifies the determinants of citation success and simulates their citation potential. Among the determinants of the number of cites the quality of the publication outlet exhibits a strong positive effect. The same effect has the number of the published pages, but journals with size limits also yield more cites. Field journals get less citations in comparison to general journals. Controlling for journal quality, the number of co-authors of a paper has no effect, but it is positive when co-authors are located outside the own institution. We find that the potential citations predicted by our best model lead to different rankings across the institutes than current citations indicating structural change.

  19. Islamic World Science Citation Center (ISC): Evaluating Scholary Journals Based on Citation Analysis.

    Science.gov (United States)

    Mehrad, Jaffar; Arastoopoor, Sholeh

    2012-03-01

    Citation analysis is currently one of the most widely used metrics for analyzing the scientific contribution in different fields. The Islamic World Science Citation Center (ISC) aims at promoting technical cooperation among Muslim scientists and their respected centers based on these theories. It also facilitates the accessibility of knowledge and research contribution among them. This paper aims at revealing some of the outmost features of ISC databases, in order to give a fairly clear view of what it is and what are its products. The paper consists of three major parts. After an introduction about the Islamic World Science Citation Center, the paper deals with major tools and products of ISC. In the third part ISCs' journal Submission system is presented as an automatic means, by which users can upload journals' papers into the respected databases. Some complementary remarks have been made regarding the current state of ISC and its future plans.

  20. Capturing citation activity in three health sciences departments: a comparison study of Scopus and Web of Science.

    Science.gov (United States)

    Sarkozy, Alexandra; Slyman, Alison; Wu, Wendy

    2015-01-01

    Scopus and Web of Science are the two major citation databases that collect and disseminate bibliometric statistics about research articles, journals, institutions, and individual authors. Liaison librarians are now regularly called upon to utilize these databases to assist faculty in finding citation activity on their published works for tenure and promotion, grant applications, and more. But questions about the accuracy, scope, and coverage of these tools deserve closer scrutiny. Discrepancies in citation capture led to a systematic study on how Scopus and Web of Science compared in a real-life situation encountered by liaisons: comparing three different disciplines at a medical school and nursing program. How many articles would each database retrieve for each faculty member using the author-searching tools provided? How many cited references for each faculty member would each tool generate? Results demonstrated troubling differences in publication and citation activity capture between Scopus and Web of Science. Implications for librarians are discussed.

  1. A generalized view of self-citation: direct, co-author, collaborative, and coercive induced self-citation.

    Science.gov (United States)

    Ioannidis, John P A

    2015-01-01

    The phenomenon of self-citation can present in many different forms, including direct, co-author, collaborative, and coercive induced self-citation. It can also pertain to the citation of single scientists, groups of scientists, journals, and institutions. This article presents some case studies of extreme self-citation practices. It also discusses the implications of different types of self-citation. Self-citation is not necessarily inappropriate by default. In fact, usually it is fully appropriate but often it is even necessary. Conversely, inappropriate self-citation practices may be highly misleading and may distort the scientific literature. Coercive induced self-citation is the most difficult to discover. Coercive Induced self-citation may happen directly from reviewers of articles, but also indirectly from reviewers of grants, scientific advisors who steer a research agenda, and leaders of funding agencies who may espouse spending disproportionately large funds in research domains that perpetuate their own self-legacy. Inappropriate self-citation can be only a surrogate marker of what might be much greater distortions of the scientific corpus towards conformity to specific opinions and biases. Inappropriate self-citations eventually affect also impact metrics. Different impact metrics vary in the extent to which they can be gamed through self-citation practices. Citation indices that are more gaming-proof are available and should be more widely used. We need more empirical studies to dissect the impact of different types of inappropriate self-citation and to examine the effectiveness of interventions to limit them. Copyright © 2014. Published by Elsevier Inc.

  2. Link Label Prediction in Signed Citation Network

    KAUST Repository

    Akujuobi, Uchenna

    2016-04-12

    Link label prediction is the problem of predicting the missing labels or signs of all the unlabeled edges in a network. For signed networks, these labels can either be positive or negative. In recent years, different algorithms have been proposed such as using regression, trust propagation and matrix factorization. These approaches have tried to solve the problem of link label prediction by using ideas from social theories, where most of them predict a single missing label given that labels of other edges are known. However, in most real-world social graphs, the number of labeled edges is usually less than that of unlabeled edges. Therefore, predicting a single edge label at a time would require multiple runs and is more computationally demanding. In this thesis, we look at link label prediction problem on a signed citation network with missing edge labels. Our citation network consists of papers from three major machine learning and data mining conferences together with their references, and edges showing the relationship between them. An edge in our network is labeled either positive (dataset relevant) if the reference is based on the dataset used in the paper or negative otherwise. We present three approaches to predict the missing labels. The first approach converts the label prediction problem into a standard classification problem. We then, generate a set of features for each edge and then adopt Support Vector Machines in solving the classification problem. For the second approach, we formalize the graph such that the edges are represented as nodes with links showing similarities between them. We then adopt a label propagation method to propagate the labels on known nodes to those with unknown labels. In the third approach, we adopt a PageRank approach where we rank the nodes according to the number of incoming positive and negative edges, after which we set a threshold. Based on the ranks, we can infer an edge would be positive if it goes a node above the

  3. Analysis of citations in four MIE proceedings.

    Science.gov (United States)

    Köhler, C O

    1987-01-01

    Scientific work in medical informatics has been going on for more than 25 years; the results of this work are published in one way or another. How are these publications used to avoid the invention of the wheel for the second and third time? To get an overview of this, four proceedings of the Medical Informatics Europe conferences out of the last eight years have been analysed, to show the behaviour of authors in different countries and in different years in respect of citations.

  4. Comparing and contrasting poverty reduction performance of social welfare programs across jurisdictions in Canada using Data Envelopment Analysis (DEA): an exploratory study of the era of devolution.

    Science.gov (United States)

    Habibov, Nazim N; Fan, Lida

    2010-11-01

    In the mid-1990s, the responsibilities to design, implement, and evaluate social welfare programs were transferred from federal to local jurisdictions in many countries of North America and Europe through devolution processes. Devolution has caused the need for a technique to measure and compare the performances of social welfare programs across multiple jurisdictions. This paper utilizes Data Envelopment Analysis (DEA) for a comparison of poverty reduction performances of jurisdictional social welfare programs across Canadian provinces. From the theoretical perspective, findings of this paper demonstrates that DEA is a promising method to evaluate, compare, and benchmark poverty reduction performance across multiple jurisdictions using multiple inputs and outputs. This paper demonstrates that DEA generates easy to comprehend composite rankings of provincial performances, identifies appropriate benchmarks for each inefficient province, and estimates sources and amounts of improvement needed to make the provinces efficient. From a practical perspective the empirical results presented in this paper indicate that Newfoundland, Prince Edwards Island, and Alberta achieve better efficiency in poverty reduction than other provinces. Policy makers and social administrators of the ineffective provinces across Canada may find benefit in selecting one of the effective provinces as a benchmark for improving their own performance based on similar size and structure of population, size of the budget for social programs, and traditions with administering particular types of social programs. Copyright (c) 2009 Elsevier Ltd. All rights reserved.

  5. Handoffs in the era of duty hours reform: a focused review and strategy to address changes in the Accreditation Council for Graduate Medical Education Common Program Requirements.

    Science.gov (United States)

    DeRienzo, Christopher M; Frush, Karen; Barfield, Michael E; Gopwani, Priya R; Griffith, Brian C; Jiang, Xiaoyin; Mehta, Ankit I; Papavassiliou, Paulie; Rialon, Kristy L; Stephany, Alyssa M; Zhang, Tian; Andolsek, Kathryn M

    2012-04-01

    With changes in the Accreditation Council for Graduate Medical Education (ACGME) Common Program Requirements related to transitions in care effective July 1, 2011, sponsoring institutions and training programs must develop a common structure for transitions in care as well as comprehensive curricula to teach and evaluate patient handoffs. In response to these changes, within the Duke University Health System, the resident-led Graduate Medical Education Patient Safety and Quality Council performed a focused review of the handoffs literature and developed a plan for comprehensive handoff education and evaluation for residents and fellows at Duke. The authors present the results of their focused review, concentrating on the three areas of new ACGME expectations--structure, education, and evaluation--and describe how their findings informed the broader initiative to comprehensively address transitions in care managed by residents and fellows. The process of developing both institution-level and program-level initiatives is reviewed, including the development of an interdisciplinary minimal data set for handoff core content, training and education programs, and an evaluation strategy. The authors believe the final plan fully addresses both Duke's internal goals and the revised ACGME Common Program Requirements and may serve as a model for other institutions to comprehensively address transitions in care and to incorporate resident and fellow leadership into a broad, health-system-level quality improvement initiative.

  6. Methodological Considerations for Use of Routine Health Information System Data to Evaluate Malaria Program Impact in an Era of Declining Malaria Transmission.

    Science.gov (United States)

    Ashton, Ruth A; Bennett, Adam; Yukich, Joshua; Bhattarai, Achuyt; Keating, Joseph; Eisele, Thomas P

    2017-09-01

    Coverage of malaria control interventions is increasing dramatically across endemic countries. Evaluating the impact of malaria control programs and specific interventions on health indicators is essential to enable countries to select the most effective and appropriate combination of tools to accelerate progress or proceed toward malaria elimination. When key malaria interventions have been proven effective under controlled settings, further evaluations of the impact of the intervention using randomized approaches may not be appropriate or ethical. Alternatives to randomized controlled trials are therefore required for rigorous evaluation under conditions of routine program delivery. Routine health management information system (HMIS) data are a potentially rich source of data for impact evaluation, but have been underused in impact evaluation due to concerns over internal validity, completeness, and potential bias in estimates of program or intervention impact. A range of methodologies were identified that have been used for impact evaluations with malaria outcome indicators generated from HMIS data. Methods used to maximize internal validity of HMIS data are presented, together with recommendations on reducing bias in impact estimates. Interrupted time series and dose-response analyses are proposed as the strongest quasi-experimental impact evaluation designs for analysis of malaria outcome indicators from routine HMIS data. Interrupted time series analysis compares the outcome trend and level before and after the introduction of an intervention, set of interventions or program. The dose-response national platform approach explores associations between intervention coverage or program intensity and the outcome at a subnational (district or health facility catchment) level.

  7. Authors attain comparable or slightly higher rates of citation publishing in an open access journal (CytoJournal) compared to traditional cytopathology journals - A five year (2007-2011) experience.

    Science.gov (United States)

    Frisch, Nora K; Nathan, Romil; Ahmed, Yasin K; Shidham, Vinod B

    2014-01-01

    The era of Open Access (OA) publication, a platform which serves to better disseminate scientific knowledge, is upon us, as more OA journals are in existence than ever before. The idea that peer-reviewed OA publication leads to higher rates of citation has been put forth and shown to be true in several publications. This is a significant benefit to authors and is in addition to another relatively less obvious but highly critical component of the OA charter, i.e. retention of the copyright by the authors in the public domain. In this study, we analyzed the citation rates of OA and traditional non-OA publications specifically for authors in the field of cytopathology. We compared the citation patterns for authors who had published in both OA and traditional non-OA peer-reviewed, scientific, cytopathology journals. Citations in an OA publication (CytoJournal) were analyzed comparatively with traditional non-OA cytopathology journals (Acta Cytologica, Cancer Cytopathology, Cytopathology, and Diagnostic Cytopathology) using the data from web of science citation analysis site (based on which the impact factors (IF) are calculated). After comparing citations per publication, as well as a time adjusted citation quotient (which takes into account the time since publication), we also analyzed the statistics after excluding the data for meeting abstracts. Total 28 authors published 314 publications as articles and meeting abstracts (25 authors after excluding the abstracts). The rate of citation and time adjusted citation quotient were higher for OA in the group where abstracts were included (P citation than the publications in the traditional non-OA journals in the field of cytopathology over a 5 year period (2007-2011). However, this increase was statistically insignificant if the meeting abstracts were excluded from the analysis. Overall, the rates of citation for OA and non-OA were slightly higher to comparable.

  8. Survey of formal and informal citation in Google search engine

    Directory of Open Access Journals (Sweden)

    Afsaneh Teymourikhani

    2016-03-01

    Full Text Available Aim: Informal citations is bibliographic information (title or Internet address, citing sources of information resources for informal scholarly communication and always neglected in traditional citation databases. This study is done, in order to answer the question of whether informal citations in the web environment are traceable. The present research aims to determine what proportion of web citations of Google search engine is related to formal and informal citation. Research method: Webometrics is the method used. The study is done on 1344 research articles of 98 open access journal, and the method that is used to extract the web citation from Google search engine is “Web / URL citation extraction". Findings: The findings showed that ten percent of the web citations of Google search engine are formal and informal citations. The highest formal citation in the Google search engine with 19/27% is in the field of library and information science and the lowest official citation by 1/54% is devoted to the field of civil engineering. The highest percentage of informal citations with 3/57% is devoted to sociology and the lowest percentage of informal citations by 0/39% is devoted to the field of civil engineering. Journal Citation is highest with 94/12% in the surgical field and lowest with 5/26 percent in the philosophy filed. Result: Due to formal and informal citations in the Google search engine which is about 10 percent and the reduction of this amount compared to previous research, it seems that track citations by this engine should be treated with more caution. We see that the amount of formal citation is variable in different disciplines. Cited journals in the field of surgery, is highest and in the filed of philosophy is lowest, this indicates that in the filed of philosophy, that is a subset of the social sciences, journals in scientific communication do not play a significant role. On the other hand, book has a key role in this filed

  9. A Tri-Citation Analysis Exploring the Citation Image of Kurt Lewin.

    Science.gov (United States)

    Marion, Linda S.

    2002-01-01

    Presents the initial phase of a comparison of cocitation and social network analysis methods for the study of scholarly communication, based on a case study of the intellectual contributions of Kurt Lewin, a social psychologist. Highlights include an author tri-citation analysis; cluster analysis; multidimensional scaling; and diffusion of ideas.…

  10. Using Citation Indexes, Citation Searching, and Bibliometrics to Improve Chemistry Scholarship, Research, and Administration

    Science.gov (United States)

    Buntrock, Robert E.

    2016-01-01

    Citation searching and bibliometrics are terms foreign to many chemists and educators, yet well-known and used by librarians and information specialists. This article aims to help chemistry students, educators, and other readers of this "Journal" to better appreciate and use these powerful and profound methods. Although these subjects…

  11. Towards a “Book Publishers Citation Reports”. First approach using the “ Book Citation Index”

    Directory of Open Access Journals (Sweden)

    Torres-Salinas, Daniel

    2012-12-01

    Full Text Available The absence of books and book chapters in the Web of Science Citation Indexes (SCI, SSCI and A&HCI has always been considered an important flaw but the Thomson Reuters ‘Book Citation Index’ database was finally available in October of 2010 indexing 29,618 books and 379,082 book chapters. The Book Citation Index opens a new window of opportunities for analyzing Humanities and Social Sciences from a bibliometric point of view. The main objective of this article is to analyze different impact indicators referred to the scientific publishers included in the Book Citation Index for the Social Sciences and Humanities fields during 2006-2011. This way we construct what we have called the ‘Book Publishers Citation Reports’. For this, we present a total of 19 rankings according to the different disciplines in Humanities & Arts and Social Sciences & Law with six indicators for scientific publishers.

    La ausencia de libros y capítulos de libros en los índices de citas presentes en las bases de datos de la Web of Science ha sido tradicionalmente una de sus más importantes debilidades. Sin embargo, Thomson Reuters en Octubre de 2010 lanzó el Book Citation Index, un nuevo índice de citas que contaba con 29.618 libros y 379.082 capítulos de libros. Este producto ha abierto nuevas posibilidades para el análisis bibliométrico de campos como las Humanidades y las Ciencias Sociales. Precisamente el objetivo principal de esta nota es analizar a través de diferentes indicadores las editoriales de los ámbitos de Humanidades y Ciencias Sociales indexadas en el Book Citation Index durante los años 2006-2011. Más concretamente se ha probado la posibilidad de desarrollar un ranking de editoriales de libros basado en la citación y la producción de las mismas. Para ello se presentan una colección de rankings con seis indicadores bibliométricos para un total de 19 disciplinas científicas.

  12. Citation ranking versus peer evaluation of senior faculty research performance

    DEFF Research Database (Denmark)

    Meho, Lokman I.; Sonnenwald, Diane H.

    2000-01-01

    indicator of research performance of senior faculty members? Citation data, book reviews, and peer ranking were compiled and examined for faculty members specializing in Kurdish studies. Analysis shows that normalized citation ranking and citation content analysis data yield identical ranking results....... Analysis also shows that normalized citation ranking and citation content analysis, book reviews, and peer ranking perform similarly (i.e., are highly correlated) for high-ranked and low-ranked senior scholars. Additional evaluation methods and measures that take into account the context and content......The purpose of this study is to analyze the relationship between citation ranking and peer evaluation in assessing senior faculty research performance. Other studies typically derive their peer evaluation data directly from referees, often in the form of ranking. This study uses two additional...

  13. How citation boosts promote scientific paradigm shifts and Nobel Prizes

    CERN Document Server

    Mazloumian, Amin; Helbing, Dirk; Lozano, Sergi; Fortunato, Santo; 10.1371/journal.pone.0018975

    2011-01-01

    Nobel Prizes are commonly seen to be among the most prestigious achievements of our times. Based on mining several million citations, we quantitatively analyze the processes driving paradigm shifts in science. We find that groundbreaking discoveries of Nobel Prize Laureates and other famous scientists are not only acknowledged by many citations of their landmark papers. Surprisingly, they also boost the citation rates of their previous publications. Given that innovations must outcompete the rich-gets-richer effect for scientific citations, it turns out that they can make their way only through citation cascades. A quantitative analysis reveals how and why they happen. Science appears to behave like a self-organized critical system, in which citation cascades of all sizes occur, from continuous scientific progress all the way up to scientific revolutions, which change the way we see our world. Measuring the "boosting effect" of landmark papers, our analysis reveals how new ideas and new players can make their...

  14. The Normalization of Citation Counts Based on Classification Systems

    Directory of Open Access Journals (Sweden)

    Andreas Barth

    2013-08-01

    Full Text Available If we want to assess whether the paper in question has had a particularly high or low citation impact compared to other papers, the standard practice in bibliometrics is to normalize citations in respect of the subject category and publication year. A number of proposals for an improved procedure in the normalization of citation impact have been put forward in recent years. Against the background of these proposals, this study describes an ideal solution for the normalization of citation impact: in a first step, the reference set for the publication in question is collated by means of a classification scheme, where every publication is associated with a single principal research field or subfield entry (e.g., via Chemical Abstracts sections and a publication year. In a second step, percentiles of citation counts are calculated for this set and used to assign the normalized citation impact score to the publications (and also to the publication in question.

  15. Authorship and citation manipulation in academic research

    Science.gov (United States)

    2017-01-01

    Some scholars add authors to their research papers or grant proposals even when those individuals contribute nothing to the research effort. Some journal editors coerce authors to add citations that are not pertinent to their work and some authors pad their reference lists with superfluous citations. How prevalent are these types of manipulation, why do scholars stoop to such practices, and who among us is most susceptible to such ethical lapses? This study builds a framework around how intense competition for limited journal space and research funding can encourage manipulation and then uses that framework to develop hypotheses about who manipulates and why they do so. We test those hypotheses using data from over 12,000 responses to a series of surveys sent to more than 110,000 scholars from eighteen different disciplines spread across science, engineering, social science, business, and health care. We find widespread misattribution in publications and in research proposals with significant variation by academic rank, discipline, sex, publication history, co-authors, etc. Even though the majority of scholars disapprove of such tactics, many feel pressured to make such additions while others suggest that it is just the way the game is played. The findings suggest that certain changes in the review process might help to stem this ethical decline, but progress could be slow. PMID:29211744

  16. AAS Publishing News: Astronomical Software Citation Workshop

    Science.gov (United States)

    Kohler, Susanna

    2015-07-01

    Do you write code for your research? Use astronomical software? Do you wish there were a better way of citing, sharing, archiving, or discovering software for astronomy research? You're not alone! In April 2015, AAS's publishing team joined other leaders in the astronomical software community in a meeting funded by the Sloan Foundation, with the purpose of discussing these issues and potential solutions. In attendance were representatives from academic astronomy, publishing, libraries, for-profit software sharing platforms, telescope facilities, and grantmaking institutions. The goal of the group was to establish “protocols, policies, and platforms for astronomical software citation, sharing, and archiving,” in the hopes of encouraging a set of normalized standards across the field. The AAS is now collaborating with leaders at GitHub to write grant proposals for a project to develop strategies for software discoverability and citation, in astronomy and beyond. If this topic interests you, you can find more details in this document released by the group after the meeting: http://astronomy-software-index.github.io/2015-workshop/ The group hopes to move this project forward with input and support from the broader community. Please share the above document, discuss it on social media using the hashtag #astroware (so that your conversations can be found!), or send private comments to julie.steffen@aas.org.

  17. Database citation in full text biomedical articles.

    Science.gov (United States)

    Kafkas, Şenay; Kim, Jee-Hyub; McEntyre, Johanna R

    2013-01-01

    Molecular biology and literature databases represent essential infrastructure for life science research. Effective integration of these data resources requires that there are structured cross-references at the level of individual articles and biological records. Here, we describe the current patterns of how database entries are cited in research articles, based on analysis of the full text Open Access articles available from Europe PMC. Focusing on citation of entries in the European Nucleotide Archive (ENA), UniProt and Protein Data Bank, Europe (PDBe), we demonstrate that text mining doubles the number of structured annotations of database record citations supplied in journal articles by publishers. Many thousands of new literature-database relationships are found by text mining, since these relationships are also not present in the set of articles cited by database records. We recommend that structured annotation of database records in articles is extended to other databases, such as ArrayExpress and Pfam, entries from which are also cited widely in the literature. The very high precision and high-throughput of this text-mining pipeline makes this activity possible both accurately and at low cost, which will allow the development of new integrated data services.

  18. The citation pattern of Brazilian economists

    Directory of Open Access Journals (Sweden)

    João Ricardo Faria

    2007-03-01

    Full Text Available This paper studies the determinants of international citations by Brazilian economists in papers published in the top domestic journals in 1994 and 2004. Brazilian research in economics has become more open to international influence and widespread geographically; researchers more specialized and technically oriented and the research topics more diversified. However, Brazil is plagued by editorial favoritism, reflected in the negative and significant impact of references to the works authored by domestic journals editors on international citations. We also find that longer technical papers written on topics other than the economic history of Brazil are more likely to cite foreign literature.Este artigo estuda os determinantes das citações internacionais dos economistas brasileiros em artigos publicados nas principais revistas domésticas de economia nos anos 1994 e 2004. A pesquisa de economia no Brasil se tornou mais aberta à influencia internacional e mais espalhada geograficamente; os pesquisadores mais especializados e tecnicamente orientados e os tópicos de pesquisa mais diversificados. Entretanto, a pesquisa continua sendo prejudicada pelo favoritismo editorial, refletido no impacto negativo e significante das referências dos autores aos trabalhos dos editores das revistas domésticas sobre as citacoes internacionais. Constatamos que artigos técnicos mais longos sobre tópicos que não sejam sobre história econômica do Brasil têm maior chance de citar a literatura internacional.

  19. Authorship and citation manipulation in academic research.

    Science.gov (United States)

    Fong, Eric A; Wilhite, Allen W

    2017-01-01

    Some scholars add authors to their research papers or grant proposals even when those individuals contribute nothing to the research effort. Some journal editors coerce authors to add citations that are not pertinent to their work and some authors pad their reference lists with superfluous citations. How prevalent are these types of manipulation, why do scholars stoop to such practices, and who among us is most susceptible to such ethical lapses? This study builds a framework around how intense competition for limited journal space and research funding can encourage manipulation and then uses that framework to develop hypotheses about who manipulates and why they do so. We test those hypotheses using data from over 12,000 responses to a series of surveys sent to more than 110,000 scholars from eighteen different disciplines spread across science, engineering, social science, business, and health care. We find widespread misattribution in publications and in research proposals with significant variation by academic rank, discipline, sex, publication history, co-authors, etc. Even though the majority of scholars disapprove of such tactics, many feel pressured to make such additions while others suggest that it is just the way the game is played. The findings suggest that certain changes in the review process might help to stem this ethical decline, but progress could be slow.

  20. Citation Analysis of Hepatitis Monthly by Journal Citation Report (ISI), Google Scholar, and Scopus.

    Science.gov (United States)

    Miri, Seyyed Mohammad; Raoofi, Azam; Heidari, Zahra

    2012-09-01

    Citation analysis as one of the most widely used methods of bibliometrics can be used for computing the various impact measures for scholars based on data from citation databases. Journal Citation Reports (JCR) from Thomson Reuters provides annual report in the form of impact factor (IF) for each journal. We aimed to evaluate the citation parameters of Hepatitis Monthly by JCR in 2010 and compare them with GS and Sc. All articles of Hepat Mon published in 2009 and 2008 which had been cited in 2010 in three databases including WoS, Sc and GS gathered in a spreadsheet. The IFs were manually calculated. Among the 104 total published articles the accuracy rates of GS and Sc in recording the total number of articles was 96% and 87.5%. There was a difference between IFs among the three databases (0.793 in ISI [Institute for Scientific Information], 0.945 in Sc and 0.85 GS). The missing rate of citations in ISI was 4% totally. Original articles were the main cited types, whereas, guidelines and clinical challenges were the least ones. None of the three databases succeed to record all articles published in the journal. Despite high sensitivity of GS comparing to Sc, it cannot be a reliable source for indexing since GS has lack of screening in the data collection and low specificity. Using an average of three IFs is suggested to find the correct IF. Editors should be more aware on the role of original articles in increasing IF and the potential efficacy of review articles in long term impact factor.

  1. Incites into Citation Linking using the OAI-PMH

    CERN Multimedia

    CERN. Geneva

    2005-01-01

    deposit process. This highly-distributed approach to citation linking utilises the OAI-PMH to transfer structured citation data between IRs and citation indexing services. OpenURL - a standard for contextual linking using bibliographic data - is now a NISO standard. As well as it's linking role, OpenURL is a useful standard for the transfer of bibliographic data for the purposes of...

  2. Semi-automatic Citation Correction with Lemon8-XML

    Directory of Open Access Journals (Sweden)

    MJ Suhonos

    2009-03-01

    Full Text Available The Lemon8-XML software application, developed by the Public Knowledge Project (PKP, provides an open-source, computer-assisted interface for reliable citation structuring and validation. Lemon8-XML combines citation parsing algorithms with freely-available online indexes such as PubMed, WorldCat, and OAIster. Fully-automated markup of entire bibliographies may be a genuine possibility using this approach. Automated markup of citations would increase bibliographic accuracy while reducing copyediting demands.

  3. Ecological recovery in ERA

    DEFF Research Database (Denmark)

    EFSA Scientific Committee (Scientific Committee); Topping, Christopher John

    2016-01-01

    EFSA performs environmental risk assessments (ERAs) for single potential stressors such as plant protection products, genetically modified organisms and feed additives and for invasive alien species that are harmful for plant health. In this risk assessment domain, the EFSA Scientific Committee...... ecological recovery for any assessed products, and invasive alien species that are harmful for plant health. This framework proposes an integrative approach based on well-defined specific protection goals, scientific knowledge derived by means of experimentation, modelling and monitoring, and the selection...... of focal taxa, communities, processes and landscapes to develop environmental scenarios to allow the assessment of recovery of organisms and ecological processes at relevant spatial and temporal scales....

  4. The Ripple Effect: Citation Chain Reactions of a Nobel Prize

    DEFF Research Database (Denmark)

    Faber Frandsen, Tove; Nicolaisen, Jeppe

    2013-01-01

    This paper explores the possible citation chain reactions of a Nobel Prize using the mathematician Robert J. Aumann as a case example. The results show that the award of the Nobel Prize in 2005 affected not only the citations to his work, but also affected the citations to the references in his...... scientific oeuvre. The results indicate that the spillover effect is almost as powerful as the effect itself. We are consequently able to document a ripple effect in which the awarding of the Nobel Prize ignites a citation chain reaction to Aumann's scientific ouvre and to the references in its nearest...

  5. GPM Ground Validation UND Citation Cloud Microphysics OLYMPEX V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The GPM Ground Validation UND Citation Cloud Microphysics OLYMPEX dataset includes measurements of cloud microphysics, state of the atmosphere parameters,...

  6. GPM GROUND VALIDATION UND CITATION CLOUD MICROPHYSICS GCPEX V2

    Data.gov (United States)

    National Aeronautics and Space Administration — The GPM Ground Validation UND Citation Cloud Microphysics GCPEx dataset includes instrument measurements of cloud microphysics, state of atmosphere parameters. bulk...

  7. Incites into Citation Linking using the OAI-PMH

    CERN Multimedia

    CERN. Geneva

    2005-01-01

    There are some 300 repositories of research material (Source: IAR), most of which have an OAI-PMH interface, but no current Institutional Repositories export reference data - nor do they provide their users with citation impact metrics. We propose a model for extending IR's to be citation aware and to expose that data to citation indices using the OAI-PMH and OpenURL. We present some techniques for the export of citation data using the OAI-PMH in Citebase Search. As part of a proposed Open Access Citation Information study we have developed a proposal for the integration of reference parsing and linking into the author- deposit process. This highly-distributed approach to citation linking utilises the OAI-PMH to transfer structured citation data between IRs and citation indexing services. OpenURL - a standard for contextual linking using bibliographic data - is now a NISO standard. As well as it's linking role, OpenURL is a useful standard for the transfer of bibliographic data for the purposes of citation in...

  8. GPM GROUND VALIDATION UND CITATION NAVIGATION DATA IPHEx V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The GPM Ground Validation UND Citation Navigation Data IPHEx dataset consists of files containing records that include flight time, aircraft location (latitude,...

  9. For-Profit Alternative Programs and Schools of Choice: Structuring Safety and College-for-All in an Era of Market-Based School Reform

    OpenAIRE

    Zaragoza-Petty, Alma L.

    2016-01-01

    Market-based school reform incentivizes schools to invest in the academic preparation and well-being of students. These imperatives, often articulated in terms of safety and the college preparation of students, are seen as issues traditional public schools have been unable to address adequately. In turn, alternative programs and schools of choice are positioned as viable solutions. Using critical ethnography methodology, this dissertation is based on a case study analysis of one such schoolin...

  10. 引用文獻分析與引用動機研究 Citation Analysis and Citation Motivation

    OpenAIRE

    Ming-yueh Tsay

    2001-01-01

    Citation analysis has been an important area of informetrics (or bibliometrics) for severai decades. It mainly deals with the study of the relationship between citing and cited documents. A number of studies have been done to explore citation analysis and its applications. These studies have different opinions about the nature and the complexities of the citing process. Theories of citation have been debated for decades and can never be complete. By reviewing many empirical studies, this art...

  11. Second Nuclear Era

    Energy Technology Data Exchange (ETDEWEB)

    Weinberg, A.M.; Spiewak, I.; Barkenbus, J.N.; Livingston, R.S.; Phung, D.L.

    1984-03-01

    The Institute for Energy Analysis with support from The Andrew W. Mellon Foundation has studied the decline of the present nuclear era in the United States and the characteristics of a Second Nuclear Era which might be instrumental in restoring nuclear power to an appropriate place in the energy options of our country. The study has determined that reactors operating today are much safer than they were at the time of the TMI accident. A number of concepts for a supersafe reactor were reviewed and at least two were found that show considerable promise, the PIUS, a Swedish pressurized water design, and a gas-cooled modular design of German and US origin. Although new, safer, incrementally improved, conventional reactors are under study by the nuclear industry, the complete lack of new orders in the United States will slow their introduction and they are likely to be more expensive than present designs. The study recommends that supersafe reactors be taken seriously and that federal and private funds both be used to design and, if feasible, to build a prototype reactor of substantial size. 146 references, 8 figures, 2 tables.

  12. Choosing and using citation and bibliographic database software (BDS).

    Science.gov (United States)

    Hernandez, David A; El-Masri, Maher M; Hernandez, Cheri Ann

    2008-01-01

    The diabetes educator/researcher is faced with a proliferation of diabetes articles in various journals, both online and in print. Keeping track of cited references and remembering how to cite the references in text and the bibliography can be a daunting task for the new researcher and a tedious task for the experienced researcher. The challenge is to find and use a technology, such as bibliographic database software (BDS), which can help to manage this information overload. This article focuses on the use of BDS for the diabetes educator who is undertaking research. BDS can help researchers access and organize literature and make literature searches more efficient and less time consuming. Moreover, the use of such programs tends to reduce errors associated with the complexity of bibliographic citations and can increase the productivity of scholarly publications. The purpose of this article is to provide an overview of BDS currently available, describe how it can be used to aid researchers in their work, and highlight the features of different programs. It is important for diabetes educators and researchers to explore the many benefits of such BDS programs and consider their use to enhance the accuracy and efficiency of accessing and citing references of their research work and publications. Armed with this knowledge, researchers will be able to make informed decisions about selecting BDS which will meet their usage requirements.

  13. PubMedReco: A Real-Time Recommender System for PubMed Citations.

    Science.gov (United States)

    Samuel, Hamman W; Zaïane, Osmar R

    2017-01-01

    We present a recommender system, PubMedReco, for real-time suggestions of medical articles from PubMed, a database of over 23 million medical citations. PubMedReco can recommend medical article citations while users are conversing in a synchronous communication environment such as a chat room. Normally, users would have to leave their chat interface to open a new web browser window, and formulate an appropriate search query to retrieve relevant results. PubMedReco automatically generates the search query and shows relevant citations within the same integrated user interface. PubMedReco analyzes relevant keywords associated with the conversation and uses them to search for relevant citations using the PubMed E-utilities programming interface. Our contributions include improvements to the user experience for searching PubMed from within health forums and chat rooms, and a machine learning model for identifying relevant keywords. We demonstrate the feasibility of PubMedReco using BMJ's Doc2Doc forum discussions.

  14. Citation distribution profile in Brazilian journals of general medicine

    Directory of Open Access Journals (Sweden)

    Luiggi Araujo Lustosa

    Full Text Available CONTEXT AND OBJECTIVE: Impact factors are currently the bibliometric index most used for evaluating scientific journals. However, the way in which they are used, for instance concerning the study or journal types analyzed, can markedly interfere with estimate reliability. This study aimed to analyze the citation distribution pattern in three Brazilian journals of general medicine. DESIGN AND SETTING: This was a descriptive study based on numbers of citations of scientific studies published by three Brazilian journals of general medicine. METHODS: The journals analyzed were São Paulo Medical Journal, Clinics and Revista da Associação Médica Brasileira. This survey used data available from the Institute for Scientific Information (ISI platform, from which the total number of papers published in each journal in 2007-2008 and the number of citations of these papers in 2009 were obtained. From these data, the citation distribution was derived and journal impact factors (average number of citations were estimated. These factors were then compared with those directly available from the ISI Journal of Citation Reports (JCR. RESULTS: Respectively, 134, 203 and 192 papers were published by these journals during the period analyzed. The observed citation distributions were highly skewed, such that many papers had few citations and a small percentage had many citations. It was not possible to identify any specific pattern for the most cited papers or to exactly reproduce the JCR impact factors. CONCLUSION: Use of measures like "impact factors", which characterize citations through averages, does not adequately represent the citation distribution in the journals analyzed.

  15. DUID prevalence in Colorado's DUI citations.

    Science.gov (United States)

    Wood, Ed; Salomonsen-Sautel, Stacy

    2016-06-01

    There are limited studies that measure the prevalence of driving under the influence of drugs (DUID) based upon impairment measures because most prevalence studies are based on drug tests. The aim of this study was to provide the first estimate of DUID prevalence in Colorado using data collected by Colorado law enforcement officers in vehicular homicide (VH) and vehicular assault (VA) cases, and reported in court records. The four research questions of this study were answered by completing independent t-tests or Mann-Whitney U tests, Pearson chi-square analyses or Fisher's exact tests, and Kruskal-Wallis tests. Seventy percent (119 out of 170) of the cases involved alcohol only and 30% (51 out of 170) involved drugs. Of the latter cases, 32 cases involved a combination of alcohol and drugs and 19 cases identified drugs only, with no alcohol. Marijuana was the most commonly cited drug (23 cases); however, it was the sole impairing substance identified in only three cases. Polydrug use was very common among DUID cases, which makes it difficult to identify which drug or drugs caused the impairment responsible for the Driving Under the Influence citation. This study revealed tha (a) drugged driving is a frequent cause of DUI citations in cases charged with VH or VA; (b) that polydrug use, rather than marijuana, is the most common cause of drugged driving in Colorado; and (c) that current warrant procedures render blood test results meaningless in cases of marijuana-impairment. States should collect and analyze DUID data to ensure legislators focus on the right DUID problems to improve biological testing for drugs, adopt more appropriate roadside testing, and enact stronger DUID laws to protect the public. Copyright © 2016 Elsevier Ltd and National Safety Council. All rights reserved.

  16. Two Decades of Research on Strategic Alliances: Analysis of Citations, Co-citations and Themes Researched

    Directory of Open Access Journals (Sweden)

    Manuel Portugal Ferreira

    2014-12-01

    Full Text Available Research on strategic alliances has a long tradition in management studies. Strategic alliances have been investigated using multiple theoretical lenses from RBV to agency and transaction cost, and diverse contexts, from the semiconductor to airline industries. In this study we scrutinize the extant strategic alliance research in thirtyone top-ranked business/management journals, over a twenty-year period, from 1993 to 2012. In a sample of 866 articles we conducted citation and co-citation analyses employing social network techniques and factor analysis to identify research themes and make sense of the stock of accumulated knowledge and theoretical trends. We were able to identify some shifts in research over time, namely from a focus on performance and theoretical emphasis on transaction cost theory and governance concerns, moving to a learning and knowledge transfer approach, social networks and collaboration. This study provides the foundations over which future research may develop to fill conceptual and empirical gaps.

  17. Ethical Considerations in Citing Scientific Literature and Using Citation Analysis in Evaluation of Research Performance.

    Science.gov (United States)

    Kotiaho, Janne S.

    2002-01-01

    Examines possible sources of bias in the citation process and discusses consequences they may have on researchers. Discusses subjective and biased choice of citations; whether to cite reviews or original publications; citation errors; and whether citation analysis is a good measure of quality. Concludes citation analysis may be far from ideal way…

  18. Predictive Aspects of a Stochastic Model for Citation Processes.

    Science.gov (United States)

    Glanzel, W.; Schubert, A.

    1995-01-01

    A statistical model for citation processes is presented as a particular version of a nonhomogenous birth process. The mean value function and special transition probabilities, which can readily be calculated on the basis of known and estimated parameters, give essential information on the change of citation impact in time. (10 references) (KRN)

  19. Using citation data to improve retrieval from MEDLINE.

    Science.gov (United States)

    Bernstam, Elmer V; Herskovic, Jorge R; Aphinyanaphongs, Yindalon; Aliferis, Constantin F; Sriram, Madurai G; Hersh, William R

    2006-01-01

    To determine whether algorithms developed for the World Wide Web can be applied to the biomedical literature in order to identify articles that are important as well as relevant. DESIGN AND MEASUREMENTS A direct comparison of eight algorithms: simple PubMed queries, clinical queries (sensitive and specific versions), vector cosine comparison, citation count, journal impact factor, PageRank, and machine learning based on polynomial support vector machines. The objective was to prioritize important articles, defined as being included in a pre-existing bibliography of important literature in surgical oncology. RESULTS Citation-based algorithms were more effective than noncitation-based algorithms at identifying important articles. The most effective strategies were simple citation count and PageRank, which on average identified over six important articles in the first 100 results compared to 0.85 for the best noncitation-based algorithm (p PageRank more than simple citation count. However, in spite of citation lag, citation-based algorithms remain more effective than noncitation-based algorithms. CONCLUSION Algorithms that have proved successful on the World Wide Web can be applied to biomedical information retrieval. Citation-based algorithms can help identify important articles within large sets of relevant results. Further studies are needed to determine whether citation-based algorithms can effectively meet actual user information needs.

  20. Analysis of Scifinder Scholar and Web of Science Citation Searches.

    Science.gov (United States)

    Whitley, Katherine M.

    2002-01-01

    With "Chemical Abstracts" and "Science Citation Index" both now available for citation searching, this study compares the duplication and uniqueness of citing references for works of chemistry researchers for the years 1999-2001. The two indexes cover very similar source material. This analysis of SciFinder Scholar and Web of…

  1. 1 CFR 8.9 - Form of citation.

    Science.gov (United States)

    2010-01-01

    ... 1 General Provisions 1 2010-01-01 2010-01-01 false Form of citation. 8.9 Section 8.9 General Provisions ADMINISTRATIVE COMMITTEE OF THE FEDERAL REGISTER SPECIAL EDITIONS OF THE FEDERAL REGISTER CODE OF FEDERAL REGULATIONS § 8.9 Form of citation. The Code of Federal Regulations may be cited by title and...

  2. Borrowed Authority: The American Catholic Bishops' Argument by Citation

    Science.gov (United States)

    O'Keefe, Meaghan M.

    2015-01-01

    Rhetorical use of citation is a means of indirectly reaffirming authority while avoiding the appearance of argument. It is therefore an especially useful strategy for people and institutions with compromised public images. This article compares the American Catholic bishops' written citational patterns in the United States Conference of Catholic…

  3. A document clustering and ranking system for exploring MEDLINE citations.

    Science.gov (United States)

    Lin, Yongjing; Li, Wenyuan; Chen, Keke; Liu, Ying

    2007-01-01

    A major problem faced in biomedical informatics involves how best to present information retrieval results. When a single query retrieves many results, simply showing them as a long list often provides poor overview. With a goal of presenting users with reduced sets of relevant citations, this study developed an approach that retrieved and organized MEDLINE citations into different topical groups and prioritized important citations in each group. A text mining system framework for automatic document clustering and ranking organized MEDLINE citations following simple PubMed queries. The system grouped the retrieved citations, ranked the citations in each cluster, and generated a set of keywords and MeSH terms to describe the common theme of each cluster. Several possible ranking functions were compared, including citation count per year (CCPY), citation count (CC), and journal impact factor (JIF). We evaluated this framework by identifying as "important" those articles selected by the Surgical Oncology Society. Our results showed that CCPY outperforms CC and JIF, i.e., CCPY better ranked important articles than did the others. Furthermore, our text clustering and knowledge extraction strategy grouped the retrieval results into informative clusters as revealed by the keywords and MeSH terms extracted from the documents in each cluster. The text mining system studied effectively integrated text clustering, text summarization, and text ranking and organized MEDLINE retrieval results into different topical groups.

  4. Evaluating Academic Journals Using Impact Factor and Local Citation Score

    Science.gov (United States)

    Chung, Hye-Kyung

    2007-01-01

    This study presents a method for journal collection evaluation using citation analysis. Cost-per-use (CPU) for each title is used to measure cost-effectiveness with higher CPU scores indicating cost-effective titles. Use data are based on the impact factor and locally collected citation score of each title and is compared to the cost of managing…

  5. References and Bibliographical Citations in Research Works: A ...

    African Journals Online (AJOL)

    This paper highlighted the r elevance and ind ispensab ility of reference and bibliographical citations in any research work. It identified the problems students and researchers encounter in making correct, appropriate and relevant bibliographical citations and addressed them by discussing various methods and formats of ...

  6. A Multiyear Citation Analysis of Three Rehabilitation Journals

    Science.gov (United States)

    Cook, Daniel W.; Hulett, Laura

    2004-01-01

    Using citation analysis, 3 rehabilitation journals were compared on average number of articles published per year, average number of references per article, number of self-citations, and number of times published articles were cited by other journals for the 4-year periods of 1999 through 2002 and 1977 through 1980. These data were then related to…

  7. From Attention to Citation, What and How Does Altmetrics Work?

    CERN Document Server

    Wang, Xianwen; Fang, Zhichao; Mao, Wenli

    2014-01-01

    Scholarly and social impacts of scientific publications could be measured by various metrics. In this study, the relationship between various metrics of 63,805 PLOS research articles are studied. Generally, article views correlate well with citation, however, different types of article view have different levels of correlation with citation, when pdf download correlates the citation most significantly. It's necessary for publishers and journals to provide detailed and comprehensive article metrics. Although the low correlation between social attention and citation is confirmed by this study and previous studies, more than ever, we find that social attention is highly correlated with article view, especially the browser html view. Social attention is the important source that bringing network traffic to browser html view and may lead to citation subsequently. High altmetric score has the potential role in promoting the long-term academic impact of articles, when a conceptual model is proposed to interpret the ...

  8. Journal rankings by citation analysis in health sciences librarianship.

    Science.gov (United States)

    Fang, M L

    1989-01-01

    The purpose of this study was to identify objectively a hierarchical ranking of journals for health sciences librarians with faculty status. Such a guideline can indicate a journal's value for promotion and tenure consideration. Lists of recent research articles (1982-1986) in health sciences librarianship, and articles written by health sciences librarians, were compiled by searching Social SCISEARCH and MEDLINE. The journals publishing those articles are presented. Results show BMLA as the most prominent journal in the field. Therefore, citations from articles in BMLA from 1982 to 1986 were chosen as a sample for citation analysis. Citation analysis was employed to identify the most frequently cited journals. Some characteristics of the citations in BMLA are also discussed. The ranking of journals based on citation frequency, as a result, was identified. PMID:2655785

  9. Models for predicting and explaining citation count of biomedical articles.

    Science.gov (United States)

    Fu, Lawrence D; Aliferis, Constantin

    2008-11-06

    The single most important bibliometric criterion for judging the impact of biomedical papers and their authors work is the number of citations received which is commonly referred to as citation count. This metric however is unavailable until several years after publication time. In the present work, we build computer models that accurately predict citation counts of biomedical publications within a deep horizon of ten years using only predictive information available at publication time. Our experiments show that it is indeed feasible to accurately predict future citation counts with a mixture of content-based and bibliometric features using machine learning methods. The models pave the way for practical prediction of the long-term impact of publication, and their statistical analysis provides greater insight into citation behavior.

  10. Data Citation Services in the High-Energy Physics Community

    CERN Document Server

    Herterich, Patricia

    2016-01-01

    A paradigm change in scholarly communication is underway. Supporting Open Science, an effort to make scientific research data accessible to all interested parties by openly publishing research and encouraging others to do the same thereby making it easier to communicate scientific knowledge, is a part of the change that has become increasingly important for (digital) libraries. Digital libraries are able to play a significant role in enabling Open Science by facilitating data sharing, discovery and re-use. Because data citation is often mentioned as one incentive for data sharing, enabling data citation is a crucial feature of research data services. In this article we present a case study of data citation services for the High-Energy Physics (HEP) community using digital library technology. Our example shows how the concept of data citation is implemented for the complete research workflow, covering data production, publishing, citation and tracking of data reuse. We also describe challenges faced and distil...

  11. Assessing citation networks for dissemination and implementation research frameworks.

    Science.gov (United States)

    Skolarus, Ted A; Lehmann, Todd; Tabak, Rachel G; Harris, Jenine; Lecy, Jesse; Sales, Anne E

    2017-07-28

    A recent review of frameworks used in dissemination and implementation (D&I) science described 61 judged to be related either to dissemination, implementation, or both. The current use of these frameworks and their contributions to D&I science more broadly has yet to be reviewed. For these reasons, our objective was to determine the role of these frameworks in the development of D&I science. We used the Web of Science™ Core Collection and Google Scholar™ to conduct a citation network analysis for the key frameworks described in a recent systematic review of D&I frameworks (Am J Prev Med 43(3):337-350, 2012). From January to August 2016, we collected framework data including title, reference, publication year, and citations per year and conducted descriptive and main path network analyses to identify those most important in holding the current citation network for D&I frameworks together. The source article contained 119 cited references, with 50 published articles and 11 documents identified as a primary framework reference. The average citations per year for the 61 frameworks reviewed ranged from 0.7 to 103.3 among articles published from 1985 to 2012. Citation rates from all frameworks are reported with citation network analyses for the framework review article and ten highly cited framework seed articles. The main path for the D&I framework citation network is presented. We examined citation rates and the main paths through the citation network to delineate the current landscape of D&I framework research, and opportunities for advancing framework development and use. Dissemination and implementation researchers and practitioners may consider frequency of framework citation and our network findings when planning implementation efforts to build upon this foundation and promote systematic advances in D&I science.

  12. Causes of Low and High Citation Potentials in Science: Citation Analysis of Biochemistry and Plant Physiology Journals.

    Science.gov (United States)

    Marton, Janos

    1983-01-01

    Citation data of 16 biochemistry and plant physiology journals show that reasons for lower citation potentials of plant physiology articles are: (1) readership is narrower for plant physiology journals; (2) plant physiologists can cite fewer thematically relevant new articles; and (3) plant physiology research fields are more isolated. References…

  13. Application of progressive nucleation mechanism for the citation behavior of individual papers of different authors.

    Science.gov (United States)

    Sangwal, Keshra

    2012-09-01

    The basic concepts and equations of the progressive nucleation mechanism (PNM) are presented first for the growth and decay of items. The mechanism is then applied to describe the cumulative citations L and citations ΔL per year of the individual most-cited papers i of four selected Polish professors as a function of citation duration t. It was found that the PNM satisfactorily describes the time dependence of cumulative citations L of the papers published by different authors with sufficiently high citations ΔL, as represented by the highest yearly citations ΔL(max) during the entire citation period t (normal citation behavior). The citation period for these papers is less than 15 years and it is even 6-8 years in several cases. However, for papers with citation periods exceeding about 15 years, the growth behavior of citations does not follow the PNM in the entire citation period (anomalous citation behavior), and there are regions of citations in which the citation data may be described by the PNM. Normal and anomalous citation behaviors are attributed, respectively, to the occurrence and nonoccurrence of stationary nucleation of citations for the papers. The PNM also explains the growth and decay of citations ΔL per year of papers exhibiting normal citation behavior.

  14. Economic impact of the introduction of machine perfusion preservation in a kidney transplantation program in the expanded donor era: cost-effectiveness assessment.

    Science.gov (United States)

    Gómez, V; Galeano, C; Diez, V; Bueno, C; Díaz, F; Burgos, F J

    2012-11-01

    Kidney transplantations (KT) from expanded criteria donors (ECD) show a higher rate of delayed graft function (DGF) that increases postoperative costs because of the prolonged hospital stay as well as the needs for dialysis and additional diagnostic procedures. Hypothermic machine perfusion (MP) might be superior to cold storage (CS) to reduce the relative risks of DGF and primary nonfunction (PNF) as well as to increase 1-year graft survival. The aim of the study was to determine the relative cost-effectiveness of two different storage methods: MP versus CS. A probabilistic decision tree was developed to compare MP and CS as graft preservation methods. The structure of the model was populated by review of the literature and outcomes of KT from ECD in our center. The model estimated budget impact and incremental cost-effectiveness ratio in terms of DGF and PNF cases. The cost comparison of methods for KT preservation included: hospitalization and intermediate care unit stay; post-KT dialysis; graft removal; immunosuppressive regimen; treatment of acute rejection episodes; as well as costs of preservation solutions and pulsatile preservation device or storage containers. Resource consumption for CS stratified by graft function varied from $8,159 for immediate graft function (IGF) recipients to $10,865 for DGF recipients to $25,933 for PNF recipients. Meanwhile, resource consumption for MP varied from $9,522 for IGF to $12,228 for DGF to $27,297 for PNF recipients. The main components of resource consumption were hospitalization stay (41.5%-53.9%); graft explantation (20.2%), and the need for dialysis (16.0%). The budget impact per patient for the introduction of MP was $505. However, the incremental cost-effectiveness ratio was $3,369 for each DGF- or PNF- saved case. The introduction of the MP preservation technology in a KT program form ECD is cost-effective in terms of savings for DGF and PNF cases. Copyright © 2012 Elsevier Inc. All rights reserved.

  15. {sup 18}F-FDG PET/CT heterogeneity quantification through textural features in the era of harmonisation programs: a focus on lung cancer

    Energy Technology Data Exchange (ETDEWEB)

    Lasnon, Charline [University Hospital, Nuclear Medicine Department, Caen (France); Biologie et Therapies Innovantes des Cancers Localement Agressifs, Universite de Caen Normandie, INSERM, Caen (France); Normandie University, Caen (France); Majdoub, Mohamed; Lavigne, Brice; Visvikis, Dimitris [LaTIM, INSERM UMR 1101, Brest (France); Do, Pascal [Thoracic Oncology, Francois Baclesse Cancer Centre, Caen (France); Madelaine, Jeannick [Caen University Hospital, Pulmonology Department, Caen (France); Hatt, Mathieu [LaTIM, INSERM UMR 1101, Brest (France); CHRU Morvan, INSERM UMR 1101, Laboratoire de Traitement de l' Information Medicale (LaTIM), Groupe ' Imagerie multi-modalite quantitative pour le diagnostic et la therapie' , Brest (France); Aide, Nicolas [University Hospital, Nuclear Medicine Department, Caen (France); Biologie et Therapies Innovantes des Cancers Localement Agressifs, Universite de Caen Normandie, INSERM, Caen (France); Normandie University, Caen (France); Caen University Hospital, Nuclear Medicine Department, Caen (France)

    2016-12-15

    Quantification of tumour heterogeneity in PET images has recently gained interest, but has been shown to be dependent on image reconstruction. This study aimed to evaluate the impact of the EANM/EARL accreditation program on selected {sup 18}F-FDG heterogeneity metrics. To carry out our study, we prospectively analysed 71 tumours in 60 biopsy-proven lung cancer patient acquisitions reconstructed with unfiltered point spread function (PSF) positron emission tomography (PET) images (optimised for diagnostic purposes), PSF-reconstructed images with a 7-mm Gaussian filter (PSF{sub 7}) chosen to meet European Association of Nuclear Medicine (EANM) 1.0 harmonising standards, and EANM Research Ltd. (EARL)-compliant ordered subset expectation maximisation (OSEM) images. Delineation was performed with fuzzy locally adaptive Bayesian (FLAB) algorithm on PSF images and reported on PSF{sub 7} and OSEM ones, and with a 50 % standardised uptake values (SUV){sub max} threshold (SUV{sub max50%}) applied independently to each image. Robust and repeatable heterogeneity metrics including 1st-order [area under the curve of the cumulative histogram (CH{sub AUC})], 2nd-order (entropy, correlation, and dissimilarity), and 3rd-order [high-intensity larger area emphasis (HILAE) and zone percentage (ZP)] textural features (TF) were statistically compared. Volumes obtained with SUV{sub max50%} were significantly smaller than FLAB-derived ones, and were significantly smaller in PSF images compared to OSEM and PSF{sub 7} images. PSF-reconstructed images showed significantly higher SUVmax and SUVmean values, as well as heterogeneity for CH{sub AUC}, dissimilarity, correlation, and HILAE, and a wider range of heterogeneity values than OSEM images for most of the metrics considered, especially when analysing larger tumours. Histological subtypes had no impact on TF distribution. No significant difference was observed between any of the considered metrics (SUV or heterogeneity features) that we

  16. Multiple Citation Indicators and Their Composite across Scientific Disciplines.

    Directory of Open Access Journals (Sweden)

    John P A Ioannidis

    2016-07-01

    Full Text Available Many fields face an increasing prevalence of multi-authorship, and this poses challenges in assessing citation metrics. Here, we explore multiple citation indicators that address total impact (number of citations, Hirsch H index [H], co-authorship adjustment (Schreiber Hm index [Hm], and author order (total citations to papers as single; single or first; or single, first, or last author. We demonstrate the correlation patterns between these indicators across 84,116 scientists (those among the top 30,000 for impact in a single year [2013] in at least one of these indicators and separately across 12 scientific fields. Correlation patterns vary across these 12 fields. In physics, total citations are highly negatively correlated with indicators of co-authorship adjustment and of author order, while in other sciences the negative correlation is seen only for total citation impact and citations to papers as single author. We propose a composite score that sums standardized values of these six log-transformed indicators. Of the 1,000 top-ranked scientists with the composite score, only 322 are in the top 1,000 based on total citations. Many Nobel laureates and other extremely influential scientists rank among the top-1,000 with the composite indicator, but would rank much lower based on total citations. Conversely, many of the top 1,000 authors on total citations have had no single/first/last-authored cited paper. More Nobel laureates of 2011-2015 are among the top authors when authors are ranked by the composite score than by total citations, H index, or Hm index; 40/47 of these laureates are among the top 30,000 by at least one of the six indicators. We also explore the sensitivity of indicators to self-citation and alphabetic ordering of authors in papers across different scientific fields. Multiple indicators and their composite may give a more comprehensive picture of impact, although no citation indicator, single or composite, can be expected to

  17. Multiple Citation Indicators and Their Composite across Scientific Disciplines.

    Science.gov (United States)

    Ioannidis, John P A; Klavans, Richard; Boyack, Kevin W

    2016-07-01

    Many fields face an increasing prevalence of multi-authorship, and this poses challenges in assessing citation metrics. Here, we explore multiple citation indicators that address total impact (number of citations, Hirsch H index [H]), co-authorship adjustment (Schreiber Hm index [Hm]), and author order (total citations to papers as single; single or first; or single, first, or last author). We demonstrate the correlation patterns between these indicators across 84,116 scientists (those among the top 30,000 for impact in a single year [2013] in at least one of these indicators) and separately across 12 scientific fields. Correlation patterns vary across these 12 fields. In physics, total citations are highly negatively correlated with indicators of co-authorship adjustment and of author order, while in other sciences the negative correlation is seen only for total citation impact and citations to papers as single author. We propose a composite score that sums standardized values of these six log-transformed indicators. Of the 1,000 top-ranked scientists with the composite score, only 322 are in the top 1,000 based on total citations. Many Nobel laureates and other extremely influential scientists rank among the top-1,000 with the composite indicator, but would rank much lower based on total citations. Conversely, many of the top 1,000 authors on total citations have had no single/first/last-authored cited paper. More Nobel laureates of 2011-2015 are among the top authors when authors are ranked by the composite score than by total citations, H index, or Hm index; 40/47 of these laureates are among the top 30,000 by at least one of the six indicators. We also explore the sensitivity of indicators to self-citation and alphabetic ordering of authors in papers across different scientific fields. Multiple indicators and their composite may give a more comprehensive picture of impact, although no citation indicator, single or composite, can be expected to select all the

  18. Power-law citation distributions are not scale-free

    Science.gov (United States)

    Golosovsky, Michael

    2017-09-01

    We analyze time evolution of statistical distributions of citations to scientific papers published in the same year. While these distributions seem to follow the power-law dependence we find that they are nonstationary and the exponent of the power-law fit decreases with time and does not come to saturation. We attribute the nonstationarity of citation distributions to different longevity of the low-cited and highly cited papers. By measuring citation trajectories of papers we found that citation careers of the low-cited papers come to saturation after 10-15 years while those of the highly cited papers continue to increase indefinitely: The papers that exceed some citation threshold become runaways. Thus, we show that although citation distribution can look as a power-law dependence, it is not scale free and there is a hidden dynamic scale associated with the onset of runaways. We compare our measurements to our recently developed model of citation dynamics based on copying-redirection-triadic closure and find explanations to our empirical observations.

  19. Context Sensitive Article Ranking with Citation Context Analysis

    CERN Document Server

    Doslu, Metin

    2015-01-01

    It is hard to detect important articles in a specific context. Information retrieval techniques based on full text search can be inaccurate to identify main topics and they are not able to provide an indication about the importance of the article. Generating a citation network is a good way to find most popular articles but this approach is not context aware. The text around a citation mark is generally a good summary of the referred article. So citation context analysis presents an opportunity to use the wisdom of crowd for detecting important articles in a context sensitive way. In this work, we analyze citation contexts to rank articles properly for a given topic. The model proposed uses citation contexts in order to create a directed and weighted citation network based on the target topic. We create a directed and weighted edge between two articles if citation context contains terms related with the target topic. Then we apply common ranking algorithms in order to find important articles in this newly cre...

  20. Citation Index: an indispensable information retrieval tool for research and evaluation

    OpenAIRE

    Kademani, B. S.; Vijai Kumar, *

    2002-01-01

    This paper highlights the information explosion, the need for bibliographic control, the need for information retrieval tools. Explains the emergence of Citation Index, concept of citation indexing, reasons for citing, its structure (print and electronic versions of Science citation Index and Social Science Citation Index ), and application of citation index. It also discusses the search effectiveness, factors taken into consideration for coverage of journals in citation indexes, Journal Cita...

  1. Citation indices for social media articles in urology.

    Science.gov (United States)

    Calopedos, Ross J S; Garcia, Cindy; Rashid, Prem; Murphy, Declan G; Lawrentschuk, Nathan; Woo, Henry H

    2017-05-01

    To evaluate the impact of publications on urological participation in social media (SoMe) by virtue of citations in the urological and non-urological literature. On 15 March 2016, a PubMed search was undertaken using the names of the major SoMe platforms in current use and associated with the field of urology. The search term 'urolog*' was used to specifically capture articles that could be associated with 'urology', 'urologist' or 'urological'. Exclusion criteria for analysis included non-English language articles, articles published for the first time online in any form after 1 March 2015, articles irrelevant to the topic of SoMe, and letters of correspondence. Included articles were then searched in Google Scholar and citations analysed to determine if citations were from the urological literature or non-urological literature. Citations from non-urological journals were considered to be as such even if authored by urologists and on the subject of urology and SoMe. Prior to exclusions as defined in the methods, our PubMed search yielded 232 articles of which 17 were non-English language and 66 had been published after 1 March 2015. Allowing for 12 months after the most recent articles were published, we found that the mean number of total citations in any journal was 20.8. There were more citations in journals not specific to urology, with 8.3 citations in urological journals, compared to 12.6 citations in non-urological journals. Urological SoMe journal articles are highly cited, particularly in the non-urological literature. It is likely that the magnitude of citations has positively contributed to the impact factors of the almost all journals publishing these manuscripts. © 2017 The Authors BJU International © 2017 BJU International Published by John Wiley & Sons Ltd.

  2. Citation indexing and evaluation of scientific papers.

    Science.gov (United States)

    Margolis, J

    1967-03-10

    Evaluation by means of citation patterns can be successful only insofar as published papers and their bibliographies reflect scientific activity and nothing else. Such an innocent descrip tion is becoming less and less tenable. The present scientific explosion gave rise to more than a proportional pub lication explosion, which not only re flects the scientific explosion but has its own dynamics and vicious circles. Publication of results is probably the main means of accomplishing the al most impossible task of accounting for time and money spent on research. Inevitably, this puts a premium on quantity at the expense of quality, and, as with any other type of inflation, the problem worsens: the more papers are written, the less they count for and the greater is the pressure to publish more. What makes matters worse is the fact that the sheer volume of the"litera ture" makes it increasingly difficult to separate what is worthwhile from the rest. Critical reviews have become somewhat of a rarity, and editorial judgment is usually relegated to ref erees, who are contemporaries and, per haps, competitors of the authors-a situation which has its own undesirable implications (11, 18). It requires little imagination to discover other vicious circles, all arising from distortion of the primary reasons for publishing the results of scientific inquiry. There are, it is true, signs of ad justment to this crisis, partly due to some easing of the pressure to pub lish at all costs, and partly due to the readers' changing attitudes toward the flood of publications. An increasing amount of research is now being car ried out in the form of collective proj ects in large institutions where publica tion is no longer the standard method of accounting for individual work. At the same time there is apparent an in creasing tendency for scientific journals to polarize into the relatively few leading ones which carry important informa tion and the many subsidiary journals which serve as

  3. Cigarette smoking in the business environment. January 1970-November 1988 (Citations from the Management Contents data base). Report for January 1970-November 1988

    Energy Technology Data Exchange (ETDEWEB)

    1988-12-01

    This bibliography contains citations concerning the impact of cigarette smoking in the workplace. Costs and benefits of corporate smoking policies are considered. Health promotions and an employee's right to smoke are discussed. Space considerations, designated smoking areas, and corporate smoking policy implementation are examined. Corporate programs that encourage employees to quit smoking as part of employee fitness plans are considered. (Contains 50 citations fully indexed and including a title list.)

  4. Reheating-era leptogenesis

    Directory of Open Access Journals (Sweden)

    Yuta Hamada

    2016-12-01

    Full Text Available We propose a novel leptogenesis scenario at the reheating era. Our setup is minimal in the sense that, in addition to the standard model Lagrangian, we only consider an inflaton and higher dimensional operators. The lepton number asymmetry is produced not by the decay of a heavy particle, but by the scattering between the standard model particles. After the decay of an inflaton, the model is described within the standard model with higher dimensional operators. The Sakharov's three conditions are satisfied by the following way. The violation of the lepton number is realized by the dimension-5 operator. The complex phase comes from the dimension-6 four lepton operator. The universe is out of equilibrium before the reheating is completed. It is found that the successful baryogenesis is realized for the wide range of parameters, the inflaton mass and reheating temperature, depending on the cutoff scale. Since we only rely on the effective Lagrangian, our scenario can be applicable to all mechanisms to generate neutrino Majorana masses.

  5. Reheating-era leptogenesis

    Energy Technology Data Exchange (ETDEWEB)

    Hamada, Yuta, E-mail: hamada@gauge.scphys.kyoto-u.ac.jp; Kawana, Kiyoharu

    2016-12-10

    We propose a novel leptogenesis scenario at the reheating era. Our setup is minimal in the sense that, in addition to the standard model Lagrangian, we only consider an inflaton and higher dimensional operators. The lepton number asymmetry is produced not by the decay of a heavy particle, but by the scattering between the standard model particles. After the decay of an inflaton, the model is described within the standard model with higher dimensional operators. The Sakharov's three conditions are satisfied by the following way. The violation of the lepton number is realized by the dimension-5 operator. The complex phase comes from the dimension-6 four lepton operator. The universe is out of equilibrium before the reheating is completed. It is found that the successful baryogenesis is realized for the wide range of parameters, the inflaton mass and reheating temperature, depending on the cutoff scale. Since we only rely on the effective Lagrangian, our scenario can be applicable to all mechanisms to generate neutrino Majorana masses.

  6. Homo Citans and Carbon Allotropes: For an Ethics of Citation.

    Science.gov (United States)

    Hoffmann, Roald; Kabanov, Artyom A; Golov, Andrey A; Proserpio, Davide M

    2016-09-05

    Cite we must, cite we do. We cite because we are links in a chain, using properties and methods validated by others. We also cite to negotiate the anxiety of influence. And to be fair. After outlining the reasons for citation, we use two case studies of citation amnesia in the field of hypothetical carbon allotropes to present a computer-age search tool (SACADA) in that subsubfield. Finally, we advise on good search practice, including what to do if you miss a citation. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  7. Mokranjac in the works of his successors - from the citation imitation to the citation polemics

    Directory of Open Access Journals (Sweden)

    Božidarević Saša

    2017-01-01

    Full Text Available Using the interdisciplinary approach to Stevan Mokranjac’s Garlands [Rukoveti] and his successors in the Serbian choral music after World War II, while simultaneously relying on Dubravka Oraić Tolić’s Theory of Citation (1990, I have continued the work of distinguished scholars in the field of Serbian postwar music and their diverse analytical experiences. Whilst critically evaluating the existing analytical interpretations, in this article I have pointed to the alternative solutions and interpretations of the relevant issues of the organisation of the musical flow of Garlands and related formal types in almost all relevant musicotextual segments. Departing from the problems posed by the phenomena of intertextuality and citational procedures as elaborated by Dubravka Oraić Tolić, in this article I focus on their different embodiments as established in the relation between Stevan Mokranjac’s Garlands and garlands and similar forms of the second half of the 20th century; I also specify analytical methods and their creative application on the analysis of individual choral works. During this process, certain different types of the intertexual communication in the garlands written by members of different generations required more precise definition, i.e. additions and redefining of the existing terminology of the theory of citations, and an introduction of new terms. The selected analysed sample incorporates both the works that nowadays constitute the basis of the choral concert repertoire, and the works which are nowadays mostly neglected and not so attractive to performers and music theorists.Analytical issues discussed in this study have repeatedly pointed to the importance of Stevan Mokranjac’s Garlands as a paradigm for the authors of the second half of the 20th century, and repeated the vitality of his creative contributions to Serbian music. This has, in turn, reinforced the common knowledge on the work of Mokranjac as the

  8. Citation advantage of open access articles.

    Directory of Open Access Journals (Sweden)

    Gunther Eysenbach

    2006-05-01

    Full Text Available Open access (OA to the research literature has the potential to accelerate recognition and dissemination of research findings, but its actual effects are controversial. This was a longitudinal bibliometric analysis of a cohort of OA and non-OA articles published between June 8, 2004, and December 20, 2004, in the same journal (PNAS: Proceedings of the National Academy of Sciences. Article characteristics were extracted, and citation data were compared between the two groups at three different points in time: at "quasi-baseline" (December 2004, 0-6 mo after publication, in April 2005 (4-10 mo after publication, and in October 2005 (10-16 mo after publication. Potentially confounding variables, including number of authors, authors' lifetime publication count and impact, submission track, country of corresponding author, funding organization, and discipline, were adjusted for in logistic and linear multiple regression models. A total of 1,492 original research articles were analyzed: 212 (14.2% of all articles were OA articles paid by the author, and 1,280 (85.8% were non-OA articles. In April 2005 (mean 206 d after publication, 627 (49.0% of the non-OA articles versus 78 (36.8% of the OA articles were not cited (relative risk = 1.3 [95% Confidence Interval: 1.1-1.6]; p = 0.001. 6 mo later (mean 288 d after publication, non-OA articles were still more likely to be uncited (non-OA: 172 [13.6%], OA: 11 [5.2%]; relative risk = 2.6 [1.4-4.7]; p < 0.001. The average number of citations of OA articles was higher compared to non-OA articles (April 2005: 1.5 [SD = 2.5] versus 1.2 [SD = 2.0]; Z = 3.123; p = 0.002; October 2005: 6.4 [SD = 10.4] versus 4.5 [SD = 4.9]; Z = 4.058; p < 0.001. In a logistic regression model, controlling for potential confounders, OA articles compared to non-OA articles remained twice as likely to be cited (odds ratio = 2.1 [1.5-2.9] in the first 4-10 mo after publication (April 2005, with the odds ratio increasing to 2.9 (1

  9. Indicators of the interdisciplinarity of journals: diversity, centrality, and citations

    NARCIS (Netherlands)

    Leydesdorff, L.; Rafols, I.

    2011-01-01

    A citation-based indicator for interdisciplinarity has been missing hitherto among the set of available journal indicators. In this study, we investigate network indicators (betweenness centrality), unevenness indicators (Shannon entropy, the Gini coefficient), and more recently proposed

  10. Analysis of Journal Citations in Thesis/Dissertations of Post ...

    African Journals Online (AJOL)

    Analysis of Journal Citations in Thesis/Dissertations of Post Graduates of the Department of Political Science, University of Calabar, Nigeria and Their Availability in the University Library: A Re-Visitation.

  11. Patent Citations and Financial Analysts’ Long-Term Growth Forecasts

    National Research Council Canada - National Science Library

    Jincheol Bae; Wonchang Hur; Jaehong Lee; Jaimin Goh

    2017-01-01

    ...’ innovation outputs, on financial analysts’ long-term growth forecasts for firms. We find that financial analysts are more likely to issue long-term forecasts for firms with higher patent citations...

  12. GPM GROUND VALIDATION UND CITATION CLOUD MICROPHYSICS GCPEX V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The University of North Dakota (UND) Cessna Citation aircraft, an in-situ platform for the GCPEX campaign, carried a suite of instruments for measurements of cloud...

  13. GPM GROUND VALIDATION UND CITATION NAVIGATION DATA GCPEX V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The Cessna Citation II Research aircraft owned and operated by the University of North Dakota (UND) participated in the GPM Cold-season Precipitation Experiment...

  14. Patent Citations and Financial Analysts’ Long-Term Growth Forecasts

    Directory of Open Access Journals (Sweden)

    Jincheol Bae

    2017-05-01

    Full Text Available This paper examines the influence of patent citations, a proxy for the quality of firms’ innovation outputs, on financial analysts’ long-term growth forecasts for firms. We find that financial analysts are more likely to issue long-term forecasts for firms with higher patent citations. In addition, we find that financial analysts’ long-term forecasts are more positive for firms with high patent citations. These results imply that patent citations increase financial analysts’ coverage, and result in more positive forecasts for firms with impactful patents. Considering that financial analysts play important roles in allocating financial resources in capital markets, our findings suggest that patents are valuable assets for firms in securing capital from capital markets, and are thus essential for the sustainable growth of firms.

  15. challenges with reference citations among postgraduate students at ...

    African Journals Online (AJOL)

    User

    2012-12-30

    Dec 30, 2012 ... The researchers' experience while working on the Kwame Nkrumah University of ... 2012 Kwame Nkrumah University of Science and Technology (KNUST) ... Keywords: Documentation Styles, Citation, Bibliographic, KNUST.

  16. Parsing citations in biomedical articles using conditional random fields.

    Science.gov (United States)

    Zhang, Qing; Cao, Yong-Gang; Yu, Hong

    2011-04-01

    Citations are used ubiquitously in biomedical full-text articles and play an important role for representing both the rhetorical structure and the semantic content of the articles. As a result, text mining systems will significantly benefit from a tool that automatically extracts the content of a citation. In this study, we applied the supervised machine-learning algorithms Conditional Random Fields (CRFs) to automatically parse a citation into its fields (e.g., Author, Title, Journal, and Year). With a subset of html format open-access PubMed Central articles, we report an overall 97.95% F1-score. The citation parser can be accessed at: http://www.cs.uwm.edu/∼qing/projects/cithit/index.html. Copyright © 2011 Elsevier Ltd. All rights reserved.

  17. Anechoic Chambers: Aerospace Applications. (Latest Citations from the Aerospace Database)

    Science.gov (United States)

    1996-01-01

    The bibliography contains citations concerning the design, development, performance, and applications of anechoic chambers in the aerospace industry. Anechoic chamber testing equipment, techniques for evaluation of aerodynamic noise, microwave and radio antennas, and other acoustic measurement devices are considered. Shock wave studies on aircraft models and components, electromagnetic measurements, jet flow studies, and antenna radiation pattern measurements for industrial and military aerospace equipment are discussed. (Contains 50-250 citations and includes a subject term index and title list.)

  18. The role of the ADS in software discovery and citation

    Science.gov (United States)

    Accomazzi, Alberto

    2018-01-01

    As the primary index of scholarly content in astronomy and physics, the NASA Astrophysics Data System (ADS) is collaborating with the AAS journals and the Zenodo repository in an effort to promote the preservation of scientific software used in astronomy research and its citation in scholarly publications. In this talk I will discuss how ADS is updating its service infrastructure to allow for the publication, indexing, and citation of software records in scientific articles.

  19. Citation Type Analysis on Humanity Literature of Taiwan

    Directory of Open Access Journals (Sweden)

    Ming-Yueh Tsay

    2014-04-01

    Full Text Available Using informetrics and citation analysis, the present study explores and compares characteristics and types of citations in the humanity journal articles that published in Taiwan. Research articles published in 2011, from top humanity journals, assessed by the Institute of Humanities and Social Sciences, National Science Council in Taiwan, were collected and analyzed. The analysis was done by structure of journal article and location of citations. In addition to citations appearing in the text, the phenomena of citation type will be compared and discussed in the latter part. The results of this study revealed articles of literature, history, philosophy and arts were mostly argumentative, while linguistic articles tended to comply with IMRAD (Introduction, Methods and Materials, Results,And Discussion formats. Introducing primary materials from original works, humanity scholars tended to cite for factual descriptions or to support authors’ perspectives. Secondary materials, such as later studies on the original works by other scholars, were seen the most in the disciplines of linguistics while the least in that of history. In general, the distribution of citation types is similar between articles in domestic and foreign journals; merely minor differences occurred among disciplines. While citing characteristics and information needs of humanities scholars revealed in this study may contribute to collection development of libraries or refinement of information services to researchers, suggestions based on analysis of research results may also serve as reference for standardization of writing and publication of journal articles in Taiwan. Aiming at further exploration of citations, this study is expected to provide a better understanding of the nature of citations and to serve as a foundation for future empirical studies.

  20. Citation Analysis of PJCR Humanities Journals during 2003-2007

    OpenAIRE

    Roya Maghsoudi Daryeh

    2011-01-01

    By using citation analysis, this article has studied humanities journals of Persian Journal Citation Report (PJCR) during 2003-2007. In this research "Impact Factor" and "Immediacy Index" of these journals were investigated and top publishers were determined according to the Impact Factor indicator. Findings showed that more than 75% of these journals have Impact Factor during mentioned years, while only 30% journals have Immediacy Index. Comparing the average Impact Factor of humanities jour...

  1. Antimatter. (Latest citations from the INSPEC database). Published Search

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-01-01

    The bibliography contains citations concerning physical theory, testing, and practical applications of antimatter. Related nuclear phenomena, matter-antimatter interactions, relativity, antigravity, formation of the universe, and space-time configurations are described. The roles of cosmic rays, black holes, antiprotons, and positrons are discussed. Antimatter propulsion spacecraft are briefly cited. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  2. Antimatter. (Latest citations from the INSPEC database). Published Search

    Energy Technology Data Exchange (ETDEWEB)

    1994-12-01

    The bibliography contains citations concerning physical theory, testing, and practical applications of antimatter. Related nuclear phenomena, matter-antimatter interactions, relativity, antigravity, formation of the universe, and space-time configurations are described. The roles of cosmic rays, black holes, antiprotons, and positrons are discussed. Antimatter propulsion spacecraft are briefly cited. (Contains a minimum of 182 citations and includes a subject term index and title list.)

  3. The citation wake of publications detects nobel laureates' papers.

    Science.gov (United States)

    Klosik, David F; Bornholdt, Stefan

    2014-01-01

    For several decades, a leading paradigm of how to quantitatively assess scientific research has been the analysis of the aggregated citation information in a set of scientific publications. Although the representation of this information as a citation network has already been coined in the 1960s, it needed the systematic indexing of scientific literature to allow for impact metrics that actually made use of this network as a whole, improving on the then prevailing metrics that were almost exclusively based on the number of direct citations. However, besides focusing on the assignment of credit, the paper citation network can also be studied in terms of the proliferation of scientific ideas. Here we introduce a simple measure based on the shortest-paths in the paper's in-component or, simply speaking, on the shape and size of the wake of a paper within the citation network. Applied to a citation network containing Physical Review publications from more than a century, our approach is able to detect seminal articles which have introduced concepts of obvious importance to the further development of physics. We observe a large fraction of papers co-authored by Nobel Prize laureates in physics among the top-ranked publications.

  4. S-index: Measuring significant, not average, citation performance

    Science.gov (United States)

    Antonoyiannakis, Manolis

    2009-03-01

    We recently [1] introduced the ``citation density curve'' (or cumulative impact factor curve) that captures the full citation performance of a journal: its size, impact factor, the maximum number of citations per paper, the relative size of the different-cited portions of the journal, etc. The citation density curve displays a universal behavior across journals. We exploit this universality to extract a simple metric (the ``S-index'') to characterize the citation impact of ``significant'' papers in each journal. In doing so, we go beyond the journal impact factor, which only measures the impact of the average paper. The conventional wisdom of ranking journals according to their impact factors is thus challenged. Having shown the utility and robustness of the S-index in comparing and ranking journals of different sizes but within the same field, we explore the concept further, going beyond a single field, and beyond journals. Can we compare different scientific fields, departments, or universities? And how should one generalize the citation density curve and the S-index to address these questions? [1] M. Antonoyiannakis and S. Mitra, ``Is PRL too large to have an `impact'?'', Editorial, Physical Review Letters, December 2008.

  5. An exploration of crowdsourcing citation screening for systematic reviews

    Science.gov (United States)

    Mortensen, Michael L.; Adam, Gaelen P.; Trikalinos, Thomas A.; Kraska, Tim

    2017-01-01

    Systematic reviews are increasingly used to inform health care decisions, but are expensive to produce. We explore the use of crowdsourcing (distributing tasks to untrained workers via the web) to reduce the cost of screening citations. We used Amazon Mechanical Turk as our platform and 4 previously conducted systematic reviews as examples. For each citation, workers answered 4 or 5 questions that were equivalent to the eligibility criteria. We aggregated responses from multiple workers into an overall decision to include or exclude the citation using 1 of 9 algorithms and compared the performance of these algorithms to the corresponding decisions of trained experts. The most inclusive algorithm (designating a citation as relevant if any worker did) identified 95% to 99% of the citations that were ultimately included in the reviews while excluding 68% to 82% of irrelevant citations. Other algorithms increased the fraction of irrelevant articles excluded at some cost to the inclusion of relevant studies. Crowdworkers completed screening in 4 to 17 days, costing $460 to $2220, a cost reduction of up to 88% compared to trained experts. Crowdsourcing may represent a useful approach to reducing the cost of identifying literature for systematic reviews. PMID:28677322

  6. Semantic Web for Reliable Citation Analysis in Scholarly Publishing

    Directory of Open Access Journals (Sweden)

    Ruben Tous

    2011-03-01

    Full Text Available Analysis of the impact of scholarly artifacts is constrained by current unreliable practices in cross-referencing, citation discovering, and citation indexing and analysis, which have not kept pace with the technological advances that are occurring in several areas like knowledge management and security. Because citation analysis has become the primary component in scholarly impact factor calculation, and considering the relevance of this metric within both the scholarly publishing value chain and (especially important the professional curriculum evaluation of scholarly professionals, we defend that current practices need to be revised. This paper describes a reference architecture that aims to provide openness and reliability to the citation-tracking lifecycle. The solution relies on the use of digitally signed semantic metadata in the different stages of the scholarly publishing workflow in such a manner that authors, publishers, repositories, and citation-analysis systems will have access to independent reliable evidences that are resistant to forgery, impersonation, and repudiation. As far as we know, this is the first paper to combine Semantic Web technologies and public-key cryptography to achieve reliable citation analysis in scholarly publishing

  7. Patterns of citation when Korean scientists cite other Korean scientists

    Directory of Open Access Journals (Sweden)

    Yeonok Chung

    2016-08-01

    Full Text Available Citation patterns of Korean scientists are investigated by analyzing the references of the papers authored by Korean chemists and published in two journals of different standing. Particular interest is given to how frequently Korean researchers quote the papers written by other Korean researchers and whether there is any difference in the citation pattern when Korean researchers publish their papers in a top international journal or in a domestic journal. Two journals in the category of multidisciplinary chemistry, the Journal of the American Chemical Society and the Bulletin of the Korean Chemical Society, are chosen and a detailed analysis of the references of the papers written by Korean authors in 2015 was performed. The author self-citation rate is found to be much larger than the citation rate of other Korean authors. It is also found that the percentage of self-citations and the percentage of the references by Korean authors excluding self-citations are both significantly larger in the Bulletin of the Korean Chemical Society than in the Journal of the American Chemical Society. Interpretations of the results based on social exchange theory are proposed.

  8. Enhanced recovery after surgery (ERAS) versus conventional postoperative care in colorectal surgery.

    NARCIS (Netherlands)

    Teeuwen, P.H.; Bleichrodt, R.P.; Strik, C.; Groenewoud, J.J.; Brinkert, W.; Laarhoven, C.J.H.M. van; Goor, H. van; Bremers, A.J.A.

    2010-01-01

    BACKGROUND: Enhanced Recovery After Surgery (ERAS) programs are associated with reduced hospital morbidity and mortality. The aim of the present study was to evaluate whether the introduction of ERAS care improved the adverse events in colorectal surgery. In a cohort study, mortality, morbidity, and

  9. Integrated Community Energy Systems: engineering analysis and design bibliography. [368 citations

    Energy Technology Data Exchange (ETDEWEB)

    Calm, J.M.; Sapienza, G.R.

    1979-05-01

    This bibliography cites 368 documents that may be helpful in the planning, analysis, and design of Integrated Community Energy Systems. It has been prepared for use primarily by engineers and others involved in the development and implementation of ICES concepts. These documents include products of a number of Government research, development, demonstration, and commercialization programs; selected studies and references from the literature of various technical societies and institutions; and other selected material. The key programs which have produced cited reports are the Department of Energy Community Systems Program (DOE/CSP), the Department of Housing and Urban Development Modular Integrated Utility Systems Program (HUD/MIUS), and the Department of Health, Education, and Welfare Integrated Utility Systems Program (HEW/IUS). The cited documents address experience gained both in the U.S. and in other countries. Several general engineering references and bibliographies pertaining to technologies or analytical methods that may be helpful in the analysis and design of ICES are also included. The body of relevant literature is rapidly growing and future updates are therefore planned. Each citation includes identifying information, a source, descriptive information, and an abstract. The citations are indexed both by subjects and authors, and the subject index is extensively cross-referenced to simplify its use.

  10. MScanner: a classifier for retrieving Medline citations.

    Science.gov (United States)

    Poulter, Graham L; Rubin, Daniel L; Altman, Russ B; Seoighe, Cathal

    2008-02-19

    many features may indicate relevance. Its web interface simplifies the task of classifying Medline citations, compared to building a pre-filter and classifier specific to the topic. The data sets and open source code used to obtain the results in this paper are available on-line and as supplementary material, and the web interface may be accessed at http://mscanner.stanford.edu.

  11. Relative Citation Ratio (RCR): A New Metric That Uses Citation Rates to Measure Influence at the Article Level.

    Science.gov (United States)

    Hutchins, B Ian; Yuan, Xin; Anderson, James M; Santangelo, George M

    2016-09-01

    Despite their recognized limitations, bibliometric assessments of scientific productivity have been widely adopted. We describe here an improved method to quantify the influence of a research article by making novel use of its co-citation network to field-normalize the number of citations it has received. Article citation rates are divided by an expected citation rate that is derived from performance of articles in the same field and benchmarked to a peer comparison group. The resulting Relative Citation Ratio is article level and field independent and provides an alternative to the invalid practice of using journal impact factors to identify influential papers. To illustrate one application of our method, we analyzed 88,835 articles published between 2003 and 2010 and found that the National Institutes of Health awardees who authored those papers occupy relatively stable positions of influence across all disciplines. We demonstrate that the values generated by this method strongly correlate with the opinions of subject matter experts in biomedical research and suggest that the same approach should be generally applicable to articles published in all areas of science. A beta version of iCite, our web tool for calculating Relative Citation Ratios of articles listed in PubMed, is available at https://icite.od.nih.gov.

  12. Relative Citation Ratio (RCR): A New Metric That Uses Citation Rates to Measure Influence at the Article Level

    Science.gov (United States)

    Hutchins, B. Ian; Yuan, Xin; Santangelo, George M.

    2016-01-01

    Despite their recognized limitations, bibliometric assessments of scientific productivity have been widely adopted. We describe here an improved method to quantify the influence of a research article by making novel use of its co-citation network to field-normalize the number of citations it has received. Article citation rates are divided by an expected citation rate that is derived from performance of articles in the same field and benchmarked to a peer comparison group. The resulting Relative Citation Ratio is article level and field independent and provides an alternative to the invalid practice of using journal impact factors to identify influential papers. To illustrate one application of our method, we analyzed 88,835 articles published between 2003 and 2010 and found that the National Institutes of Health awardees who authored those papers occupy relatively stable positions of influence across all disciplines. We demonstrate that the values generated by this method strongly correlate with the opinions of subject matter experts in biomedical research and suggest that the same approach should be generally applicable to articles published in all areas of science. A beta version of iCite, our web tool for calculating Relative Citation Ratios of articles listed in PubMed, is available at https://icite.od.nih.gov. PMID:27599104

  13. Relative Citation Ratio (RCR: A New Metric That Uses Citation Rates to Measure Influence at the Article Level.

    Directory of Open Access Journals (Sweden)

    B Ian Hutchins

    2016-09-01

    Full Text Available Despite their recognized limitations, bibliometric assessments of scientific productivity have been widely adopted. We describe here an improved method to quantify the influence of a research article by making novel use of its co-citation network to field-normalize the number of citations it has received. Article citation rates are divided by an expected citation rate that is derived from performance of articles in the same field and benchmarked to a peer comparison group. The resulting Relative Citation Ratio is article level and field independent and provides an alternative to the invalid practice of using journal impact factors to identify influential papers. To illustrate one application of our method, we analyzed 88,835 articles published between 2003 and 2010 and found that the National Institutes of Health awardees who authored those papers occupy relatively stable positions of influence across all disciplines. We demonstrate that the values generated by this method strongly correlate with the opinions of subject matter experts in biomedical research and suggest that the same approach should be generally applicable to articles published in all areas of science. A beta version of iCite, our web tool for calculating Relative Citation Ratios of articles listed in PubMed, is available at https://icite.od.nih.gov.

  14. 29 CFR 2700.23 - Review of a subsequent citation or order.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Review of a subsequent citation or order. 2700.23 Section... COMMISSION PROCEDURAL RULES Contests of Citations and Orders § 2700.23 Review of a subsequent citation or order. (a) The contesting party shall file any subsequent citation or order that modifies or terminates...

  15. 29 CFR 2700.21 - Effect of filing notice of contest of citation or order.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Effect of filing notice of contest of citation or order... REVIEW COMMISSION PROCEDURAL RULES Contests of Citations and Orders § 2700.21 Effect of filing notice of contest of citation or order. (a) The filing of a notice of contest of a citation or order issued under...

  16. 15 CFR Appendix D to Part 30 - AES Filing Citation, Exemption and Exclusion Legends

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false AES Filing Citation, Exemption and... Appendix D to Part 30—AES Filing Citation, Exemption and Exclusion Legends I. USML Proof of Filing Citation AES ITN Example: AES X20060101987654. II. AES Proof of Filing Citation subpart A § 30.7 AES ITN...

  17. Bibliometric Rankings of Journals Based on the Thomson Reuters Citations Database

    NARCIS (Netherlands)

    C-L. Chang (Chia-Lin); M.J. McAleer (Michael)

    2015-01-01

    markdownabstract__Abstract__ Virtually all rankings of journals are based on citations, including self citations by journals and individual academics. The gold standard for bibliometric rankings based on citations data is the widely-used Thomson Reuters Web of Science (2014) citations database,

  18. Citation Classics in "Suicide and Life Threatening Behavior": A Research Note

    Science.gov (United States)

    Stack, Steven

    2012-01-01

    The number of citations a scholarly work receives is a common measure of its impact on the scientific literature; "citation classics" are the most highly cited works. The content of "Suicide and Life-Threatening Behavior" ("SLTB") citation classics is described here. The impact of "SLTB" citation classics is compared to their counterparts in…

  19. Turning the Tables on Citation Analysis One More Time: Principles for Comparing Sets of Documents

    NARCIS (Netherlands)

    Leydesdorff, Loet; Bornmann, Lutz; Mutz, Ruediger; Opthof, Tobias

    2011-01-01

    We submit newly developed citation impact indicators based not on arithmetic averages of citations but on percentile ranks. Citation distributions are-as a rule-highly skewed and should not be arithmetically averaged. With percentile ranks, the citation score of each paper is rated in terms of its

  20. Turning the tables in citation analysis one more time: principles for comparing sets of documents

    NARCIS (Netherlands)

    Leydesdorff, L.; Bornmann, L.; Mutz, R.; Opthof, T.

    2011-01-01

    We submit newly developed citation impact indicators based not on arithmetic averages of citations but on percentile ranks. Citation distributions are-as a rule-highly skewed and should not be arithmetically averaged. With percentile ranks, the citation score of each paper is rated in terms of its

  1. End of an era?

    DEFF Research Database (Denmark)

    Abrahamson, Peter

    2016-01-01

    At the end of 2015, China put an end to the one-child policy (OCP), thereby terminating the largest family planning program in human history. For nearly four decades it had shaped relations between generations and between men and women to an extent never before seen. Today, China struggles...

  2. Mandatory and Self-citation; Types, Reasons, Their Benefits and Disadvantages.

    Science.gov (United States)

    Hemmat Esfe, Mohammad; Wongwises, Somchai; Asadi, Amin; Karimipour, Arash; Akbari, Mohammad

    2015-12-01

    This paper defines and discusses two important types of citations, self-citation and mandatory citation, in engineering journals. Citation can be classified in three categories: optional; semi-mandatory; and mandatory. There are some negative and positive impacts for the authors' paper and journals' reputation if mandatory citation of a paper or set of papers is requested. These effects can be different based on the recommended papers for citing in the new research. Mandatory citation has various types discussed in this paper. Self-citation and its reasons and impacts are also discussed in the present study.

  3. Identifying Anomalous Citations for Objective Evaluation of Scholarly Article Impact.

    Directory of Open Access Journals (Sweden)

    Xiaomei Bai

    Full Text Available Evaluating the impact of a scholarly article is of great significance and has attracted great attentions. Although citation-based evaluation approaches have been widely used, these approaches face limitations e.g. in identifying anomalous citations patterns. This negligence would inevitably cause unfairness and inaccuracy to the article impact evaluation. In this study, in order to discover the anomalous citations and ensure the fairness and accuracy of research outcome evaluation, we investigate the citation relationships between articles using the following factors: collaboration times, the time span of collaboration, citing times and the time span of citing to weaken the relationship of Conflict of Interest (COI in the citation network. Meanwhile, we study a special kind of COI, namely suspected COI relationship. Based on the COI relationship, we further bring forward the COIRank algorithm, an innovative scheme for accurately assessing the impact of an article. Our method distinguishes the citation strength, and utilizes PageRank and HITS algorithms to rank scholarly articles comprehensively. The experiments are conducted on the American Physical Society (APS dataset. We find that about 80.88% articles contain contributed citations by co-authors in 26,366 articles and 75.55% articles among these articles are cited by the authors belonging to the same affiliation, indicating COI and suspected COI should not be ignored for evaluating impact of scientific papers objectively. Moreover, our experimental results demonstrate COIRank algorithm significantly outperforms the state-of-art solutions. The validity of our approach is verified by using the probability of Recommendation Intensity.

  4. [Citation patterns in Portuguese and Brazilian biomedical journals].

    Science.gov (United States)

    Lopes, Sílvia Costa; Santos, Tiago S; Lopes, Pedro Faria; Fernandez-Llimos, Fernando

    2012-01-01

    Bibliographic references of scientific articles are the source for calculating impact indexes frequently used for the assignment of funding to research projects. Different citation patterns may result in measurement bias of these impact indexes. To analyze citation patterns of Brazilian and Portuguese biomedical journals regarding the geographic origin of the sources cited. As part of the v+biomed project, a convenience sample of 11 biomedical journals, 4 Portuguese and 7 Brazilian, was gathered including the following subject categories: General and Internal Medicine, Public Health, Gynecology and Obstetrics, and Surgery. All the references from all the articles published in all the issues (except supplements) in 2009 and 2010 were retrieved. The type of source cited and its geographic origin were analyzed. A total of 102 issues from the 11 journals, containing 1430 articles, with a total of 32782 references were analyzed. No differences were found regarding the number of authors, pages or references between articles from Brazilian and Portuguese journals. Brazilian journals presented higher prevalence of English language and cited significantly more journals from their own country (30.1%) comparing to Portuguese journals (5.4%). Additionally, a lower citation rate to journals from the other country analyzed was evident in Brazilian (0.1%) when compared to Portuguese (3.2%) journals, as well as a higher self-citation of Brazilian journals (Brazil - 5.6%, Portugal - 2.1%). A different citation pattern between Portuguese and Brazilian biomedical journals was found, consisting of a higher citation rate from Brazilian to other Brazilian journals and to themselves. This differential in citation patterns may have implications on impact indexes determination which warrant further investigation.

  5. Citation bias in reported smoking prevalence in people with schizophrenia.

    Science.gov (United States)

    Chapman, Simon; Ragg, Mark; McGeechan, Kevin

    2009-03-01

    A meta-analysis of 42 studies on tobacco smoking among schizophrenia subjects found an average smoking prevalence of 62% (range=14-88%). Statements are common, however, in the research literature and the media that between 80% and 90% of people with schizophrenia smoke. The purpose of the present paper was therefore to determine if citation bias exists in the over-citation and reportage of studies finding high rates of smoking prevalence in schizophrenia subjects. Two hypotheses were tested: (i) that studies on the prevalence of smoking in people with schizophrenia reporting high smoking rates would be cited more often than studies reporting lower rates; and (ii) that statements about smoking rates among schizophrenic people on the Internet would report very high rates more often than more realistic, less dramatic rates. A 10% increase in reported prevalence of smoking was associated with a 61% (95% confidence interval (CI)=30-98%) increase in citation rate. Journal impact factor (IF) was significantly associated with citation rate (p=0.001) but the country in which a study was carried out did not have an effect (p=0.90). After adjusting for IF, a 10% increase in prevalence of smoking was associated with a 28% increase (95%CI=1-62%) in citation rate. This bias is mirrored on the Internet, where statements abound about uncommonly highly rates of smoking by people with schizophrenia. Studies reporting very high prevalence of smoking among people with schizophrenia are cited more often than those studies reporting a low prevalence, a result consistent with citation bias. This citation bias probably contributes to the misinformation available on the Internet, and may have adverse policy and clinical implications.

  6. Identifying Anomalous Citations for Objective Evaluation of Scholarly Article Impact.

    Science.gov (United States)

    Bai, Xiaomei; Xia, Feng; Lee, Ivan; Zhang, Jun; Ning, Zhaolong

    2016-01-01

    Evaluating the impact of a scholarly article is of great significance and has attracted great attentions. Although citation-based evaluation approaches have been widely used, these approaches face limitations e.g. in identifying anomalous citations patterns. This negligence would inevitably cause unfairness and inaccuracy to the article impact evaluation. In this study, in order to discover the anomalous citations and ensure the fairness and accuracy of research outcome evaluation, we investigate the citation relationships between articles using the following factors: collaboration times, the time span of collaboration, citing times and the time span of citing to weaken the relationship of Conflict of Interest (COI) in the citation network. Meanwhile, we study a special kind of COI, namely suspected COI relationship. Based on the COI relationship, we further bring forward the COIRank algorithm, an innovative scheme for accurately assessing the impact of an article. Our method distinguishes the citation strength, and utilizes PageRank and HITS algorithms to rank scholarly articles comprehensively. The experiments are conducted on the American Physical Society (APS) dataset. We find that about 80.88% articles contain contributed citations by co-authors in 26,366 articles and 75.55% articles among these articles are cited by the authors belonging to the same affiliation, indicating COI and suspected COI should not be ignored for evaluating impact of scientific papers objectively. Moreover, our experimental results demonstrate COIRank algorithm significantly outperforms the state-of-art solutions. The validity of our approach is verified by using the probability of Recommendation Intensity.

  7. A review on citation amnesia in depression and inflammation research.

    Science.gov (United States)

    Maes, Michael

    2015-01-01

    Once original scientific results are published the author has the "intellectual property" and may claim ownership. Discovery credit is one of the most important "rewards" for scientists and thus incorrect credits undermine the reward system of science. Scientists who publish should therefore give proper credit and acknowledge the primary sources. Failure to do so is regarded as "citation negligence", "the disregard syndrome", "citation amnesia", "plagiarism by omission", "bibliographic plagiarism" or "citation plagiarism", and may range from an unconscious or conscious "failure to credit a prior discoverer so as to give an improper impression of priority" to "the appropriation of another person's ideas or results without given proper credit". False discovery credit is considered to be "a menace to honest science", "a serious transgression" or "intellectual theft, be it intentional or not". This paper describes some examples of citation amnesia showing that scientists often fail to credit prior sources and give false discovery credit to other scientists. One example is the association between major depression and activated immuno-inflammatory pathways, a discovery by European groups and published in many papers since 1990. Now, 25 years later, it is commonplace that these theories are credited to secondary American sources whose work in "the last decade", did or did not examine these pathways in major depression. This gives an improper impression of priority of American-based scientists. Here it is proposed that this citation amnesia and plagiarism reinforced the wrong science and had negative effects on the development of immune-inflammatory biomarkers and new immune-related treatments for depression. It is concluded that journal editors should improve their citation standards to guarantee correct assignment of discovery credit for example by demanding a signed pledge from the authors that correct citations to the primary sources were made.

  8. How citation boosts promote scientific paradigm shifts and nobel prizes.

    Directory of Open Access Journals (Sweden)

    Amin Mazloumian

    Full Text Available Nobel Prizes are commonly seen to be among the most prestigious achievements of our times. Based on mining several million citations, we quantitatively analyze the processes driving paradigm shifts in science. We find that groundbreaking discoveries of Nobel Prize Laureates and other famous scientists are not only acknowledged by many citations of their landmark papers. Surprisingly, they also boost the citation rates of their previous publications. Given that innovations must outcompete the rich-gets-richer effect for scientific citations, it turns out that they can make their way only through citation cascades. A quantitative analysis reveals how and why they happen. Science appears to behave like a self-organized critical system, in which citation cascades of all sizes occur, from continuous scientific progress all the way up to scientific revolutions, which change the way we see our world. Measuring the "boosting effect" of landmark papers, our analysis reveals how new ideas and new players can make their way and finally triumph in a world dominated by established paradigms. The underlying "boost factor" is also useful to discover scientific breakthroughs and talents much earlier than through classical citation analysis, which by now has become a widespread method to measure scientific excellence, influencing scientific careers and the distribution of research funds. Our findings reveal patterns of collective social behavior, which are also interesting from an attention economics perspective. Understanding the origin of scientific authority may therefore ultimately help to explain how social influence comes about and why the value of goods depends so strongly on the attention they attract.

  9. Highest Impact Articles in Microsurgery: A Citation Analysis.

    Science.gov (United States)

    Kim, Kuylhee; Ibrahim, Ahmed M S; Koolen, Pieter G L; Markarian, Mark K; Lee, Bernard T; Lin, Samuel J

    2015-09-01

    Microsurgery has developed significantly since the inception of the first surgical microscope. There have been few attempts to describe "classic" microsurgery articles. In this study citation analysis was done to identify the most highly cited clinical and basic science articles published in five peer-reviewed plastic surgery journals. Thomson/Reuters web of knowledge was used to identify the most highly cited microsurgery articles from five journals: Plastic and Reconstructive Surgery, Annals of Plastic Surgery, Journal of Plastic, Reconstructive & Aesthetic Surgery, Journal of Reconstructive Microsurgery, and Microsurgery. Articles were identified and sorted based on the number of citations and citations per year. The 50 most cited clinical and basic science articles were identified. For clinical articles, number of total citations ranged from 120 to 691 (mean, 212.38) and citations per year ranged from 30.92 to 3.05 (mean, 9.33). The most common defect site was the head and neck (n = 15, 30%), and flaps were perforator and muscle/musculocutaneous flaps (n = 10 each, 20%, respectively). For basic science articles, number of citations ranged from 71 to 332 (mean, 130.82) and citations per year ranged from 2.20 to 11.07 (mean, 5.27). There were 27 animal, 21 cadaveric, and 2 combined studies. The most highly cited microsurgery articles are a direct reflection of the educational and clinical trends. Awareness of the most frequently cited articles may serve as a basis for core knowledge in the education of plastic surgery trainees. III. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

  10. Lovely but dangerous: The impact of patent citations on patent duration

    OpenAIRE

    Maurseth, Per Botolf

    2001-01-01

    - What is the impact of patent citations on patent renewal behaviour? Patent citations are commonly used as an indicator of technology spillovers. For cited patents therefore, patent citations have a potentially ambiguous impact. On the one hand, patent citations may indicate a scientific breakthrough, a high value of the cited patent and therefore a long survival period. On the other hand, patent citations may indicate competing innovations that render the cited patent obsolete. By discri...

  11. Implications for the Consideration of References Instead of Citations for the Bibliometric Laws and Science Evaluation

    OpenAIRE

    Silio Martinez, Teresa; Aguillo, Isidro F.

    2006-01-01

    INTRODUCTION: Citation indexes are produced by counting de-contextualised citations, which result from the transformation of references into citations, generating two different objects -two different signs-. This causes an ambiguity of both signs which is relevant for citation indexes and for science evaluation. METHODOLOGY: Two methods were used: 1) Qualitatively: It is performed a semiotic analysis in order to distinguish between bibliographic references and citations in terms of electronic...

  12. A Falsification of the Citation Impediment in the Taxonomic Literature.

    Science.gov (United States)

    Steiner, Florian M; Pautasso, Marco; Zettel, Herbert; Moder, Karl; Arthofer, Wolfgang; Schlick-Steiner, Birgit C

    2015-09-01

    Current science evaluation still relies on citation performance, despite criticisms of purely bibliometric research assessments. Biological taxonomy suffers from a drain of knowledge and manpower, with poor citation performance commonly held as one reason for this impediment. But is there really such a citation impediment in taxonomy? We compared the citation numbers of 306 taxonomic and 2291 non-taxonomic research articles (2009-2012) on mosses, orchids, ciliates, ants, and snakes, using Web of Science (WoS) and correcting for journal visibility. For three of the five taxa, significant differences were absent in citation numbers between taxonomic and non-taxonomic papers. This was also true for all taxa combined, although taxonomic papers received more citations than non-taxonomic ones. Our results show that, contrary to common belief, taxonomic contributions do not generally reduce a journal's citation performance and might even increase it. The scope of many journals rarely featuring taxonomy would allow editors to encourage a larger number of taxonomic submissions. Moreover, between 1993 and 2012, taxonomic publications accumulated faster than those from all biological fields. However, less than half of the taxonomic studies were published in journals in WoS. Thus, editors of highly visible journals inviting taxonomic contributions could benefit from taxonomy's strong momentum. The taxonomic output could increase even more than at its current growth rate if: (i) taxonomists currently publishing on other topics returned to taxonomy and (ii) non-taxonomists identifying the need for taxonomic acts started publishing these, possibly in collaboration with taxonomists. Finally, considering the high number of taxonomic papers attracted by the journal Zootaxa, we expect that the taxonomic community would indeed use increased chances of publishing in WoS indexed journals. We conclude that taxonomy's standing in the present citation-focused scientific landscape could

  13. Tweeting birds: online mentions predict future citations in ornithology.

    Science.gov (United States)

    Finch, Tom; O'Hanlon, Nina; Dudley, Steve P

    2017-11-01

    The rapid growth of online tools to communicate scientific research raises the important question of whether online attention is associated with citations in the scholarly literature. The Altmetric Attention Score (AAS) quantifies the attention received by a scientific publication on various online platforms including news, blogs and social media. It has been advanced as a rapid way of gauging the impact of a piece of research, both in terms of potential future scholarly citations and wider online engagement. Here, we explore variation in the AAS of 2677 research articles published in 10 ornithological journals between 2012 and 2016. On average, AAS increased sevenfold in just five years, primarily due to increased activity on Twitter which contributed 75% of the total score. For a subset of 878 articles published in 2014, including an additional 323 ornithology articles from non-specialist journals, an increase in AAS from 1 to 20 resulted in a predicted 112% increase in citation count from 2.6 to 5.5 citations per article. This effect interacted with journal impact factor, with weaker effects of AAS in higher impact factor journals. Our results suggest that altmetrics (or the online activity they measure), as well as complementing traditional measures of scholarly impact in ornithology such as citations, may also anticipate or even drive them.

  14. Citation metrics of excellence in sports biomechanics research.

    Science.gov (United States)

    Knudson, Duane

    2017-11-13

    This study extended research on key citation metrics of winners of two career scholar awards in sports biomechanics. Google Scholar (GS) was searched using Harzing's Publish or Perish software for the 13 most recent winners of the ISBS Geoffrey Dyson Award and the ASB Jim Hay Memorial Award. Returned records were corrected for author, and publications excluded for all but peer-reviewed journal articles, proceedings articles, chapters and books in English. These recent award winners had published about 150 publications that had been cited typically 4,082 and 6,648 times over a 26- and 28-year period before receiving these career awards for sports biomechanics research. Estimated median citations at time of their awards were 2,927 and 4,907 for the Dyson and Hay awards, respectively. Award winners had mean Hirsh indexes of 32-45 and mean h i of 19-28. Their mean g indexes (59-84) and their numerous citation classics (C > 100) indicated that they had many influential publications. The citation metrics of these scholars were outstanding and consistent with recent studies of top scholars in biomechanics and kinesiology/exercise science. Careful searching, cleaning and interpretation of several scholar-level citation metrics may provide useful confirmatory evidence for evaluations of awards committees.

  15. Ranking Scientific Publications Based on Their Citation Graph

    CERN Document Server

    Marian, L; Rajman, M

    2009-01-01

    CDS Invenio is the web-based integrated digital library system developed at CERN. It is a suite of applications which provides the framework and tools for building and managing an autonomous digital library server. Within this framework, the goal of this project is to implement new ranking methods based on the bibliographic citation graph extracted from the CDS Invenio database. As a first step, we implemented the Citation Count as a baseline ranking method. The major disadvantage of this method is that all citations are treated equally, disregarding their importance and their publication date. To overcome this drawback, we consider two different approaches: a link-based approach which extends the PageRank model to the bibliographic citation graph and a time-dependent approach which takes into account time in the citation counts. In addition, we also combined these two approaches in a hybrid model based on a time-dependent PageRank. In the present document, we describe the conceptual background behind our new...

  16. Citation Impact of Collaboration in Radiology Research.

    Science.gov (United States)

    Rosenkrantz, Andrew B; Parikh, Ujas; Duszak, Richard

    2017-11-01

    Team science involving multidisciplinary and multi-institutional collaboration is increasingly recognized as a means of strengthening the quality of scientific research. The aim of this study was to assess associations between various forms of collaboration and the citation impact of published radiology research. In 2010, 876 original research articles published in Academic Radiology, the American Journal of Roentgenology, JACR, and Radiology were identified with at least one radiology-affiliated author. All articles were manually reviewed to extract features related to all authors' disciplines and institutions. Citations to these articles through September 2016 were extracted from Thomson Reuters Web of Science. Subsequent journal article citation counts were significantly higher (P analysis, the strongest independent predictors of the number of citations were authors from multiple countries (β = 9.14, P = .002), a nonuniversity collaborator (β = 4.80, P = .082), and at least seven authors (β = 4.11, P = .038). With respect to subsequent journal article citations, various forms of collaboration are associated with greater scholarly impact of published radiology research. To enhance the relevance of their research, radiology investigators are encouraged to pursue collaboration across traditional disciplinary, institutional, and geographic boundaries. Copyright © 2017 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  17. 100 classic papers of interventional radiology: A citation analysis.

    Science.gov (United States)

    Crockett, Matthew T; Browne, Ronan Fj; MacMahon, Peter J; Lawler, Leo

    2015-04-28

    To define the 100 citation classic papers of interventional radiology. Using the database of Journal Citation Reports the 40 highest impact factor radiology journals were chosen. From these journals the 100 most cited interventional radiology papers were chosen and analysed. The top paper received 2497 citations and the 100(th) paper 200 citations. The average number of citations was 320. Dates of publication ranged from 1953 - 2005. Most papers originated in the United States (n = 67) followed by Italy (n = 20) and France (n = 10). Harvard University (n = 18) and Osped Civile (n = 11) were the most prolific institutions. Ten journals produced all of the top 100 papers with "Radiology" and "AJR" making up the majority. SN Goldberg and T Livraghi were the most prolific authors. Nearly two thirds of the papers (n = 61) were published after 1990. This analysis identifies many of the landmark interventional radiology papers and provides a fascinating insight into the changing discourse within the field. It also identifies topics, authors and institutions which have impacted greatly on the specialty.

  18. APA Citation Style (6th Edition)

    OpenAIRE

    2014-01-01

    ARP-AA-12-003 Acquisition Research Handbook Series This handbook is one of a series of four produced for the Acquisition Research Program (ARP) at the Naval Postgraduate School. The purpose of the ARP Handbook Series is to provide helpful information in a user-friendly format to assist graduate students and others in improving their research and writing skills.

  19. News from the Library : Citation counts: Web of Science @ CERN

    CERN Multimedia

    CERN Library

    2010-01-01

    The online information resources available to the CERN Community have recently increased by an additional database: Web of Science. WoS is a collection of several databases, among them the Science Citation Index, the Conference Proceedings Index and the Journal Citation Reports. The first two products allow you to perform subject, author and title searches, and most importantly you can obtain a list of papers citing a specific article, or navigate to the articles cited by the same article. Besides the retrieval and navigation features, analytical tools allow you to produce statistics and graphs describing the impact of a publication. Finally, the Journal Citation Reports database provides you with the well known – and often disputed – Impact Factor. Access to Web of Science: http://library.web.cern.ch/library/Library/wos.html Please provide feedback to library.desk@cern.ch.

  20. [Medycyna Pracy: the scopus-based analysis of citations].

    Science.gov (United States)

    Przyłuska, Jolanta

    2006-01-01

    Medycyna Pracy, a Polish bimonthly published since 1950, forms a long-standing documentation of studies carried out in the area of workers' health protection. The journal is primarily addressed to occupational health physicians and work hygiene specialists in Poland. It is indexed by numerous foreign information services (e.g., MEDLINE, EMBASE, BIOSIS PREVIEWS, BIOLOGICAL ABSTRACTS, SCOPUS) and thus promotes Polish research in occupational medicine throughout the world. The quantitative analysis for the years 1996-2005, grounded on the SCOPUS database, presents an average number of citations concerning a given volume, frequency of citations, articles most frequently cited, and countries, in which articles published in Medycyna Pracy have been referred to. A growing number of citations observed in the recent years signify the importance of issues investigated and discussed in the journal as well as its role in the world-wide circulation of scientific information.

  1. Prestige versus citation volume as journal indices in cognitive neuroscience.

    Science.gov (United States)

    Ward, Jamie

    2014-01-01

    In recent years, alternative measures of a journal's influence have been developed to those based on citation metrics (such as Impact Factor). This includes the Scimago Journal Rank (SJR) which is adapted from algorithms used to prioritize webpages in search engines. It is considered a measure of "prestige" insofar as it takes into account the importance of links/citations and not just their total number. Taking a sample of 38 journals from within the field of cognitive neuroscience, it is shown that SJR and Impact Factor correlate highly (r = .83) but with a few large discrepancies in rankings. This journal, Cognitive Neuroscience, fares better on the prestige-based measure than might otherwise be expected from its citation-based rank.

  2. Data reuse and the open data citation advantage.

    Science.gov (United States)

    Piwowar, Heather A; Vision, Todd J

    2013-01-01

    Background. Attribution to the original contributor upon reuse of published data is important both as a reward for data creators and to document the provenance of research findings. Previous studies have found that papers with publicly available datasets receive a higher number of citations than similar studies without available data. However, few previous analyses have had the statistical power to control for the many variables known to predict citation rate, which has led to uncertain estimates of the "citation benefit". Furthermore, little is known about patterns in data reuse over time and across datasets. Method and Results. Here, we look at citation rates while controlling for many known citation predictors and investigate the variability of data reuse. In a multivariate regression on 10,555 studies that created gene expression microarray data, we found that studies that made data available in a public repository received 9% (95% confidence interval: 5% to 13%) more citations than similar studies for which the data was not made available. Date of publication, journal impact factor, open access status, number of authors, first and last author publication history, corresponding author country, institution citation history, and study topic were included as covariates. The citation benefit varied with date of dataset deposition: a citation benefit was most clear for papers published in 2004 and 2005, at about 30%. Authors published most papers using their own datasets within two years of their first publication on the dataset, whereas data reuse papers published by third-party investigators continued to accumulate for at least six years. To study patterns of data reuse directly, we compiled 9,724 instances of third party data reuse via mention of GEO or ArrayExpress accession numbers in the full text of papers. The level of third-party data use was high: for 100 datasets deposited in year 0, we estimated that 40 papers in PubMed reused a dataset by year 2, 100 by

  3. Data reuse and the open data citation advantage

    Directory of Open Access Journals (Sweden)

    Heather A. Piwowar

    2013-10-01

    Full Text Available Background. Attribution to the original contributor upon reuse of published data is important both as a reward for data creators and to document the provenance of research findings. Previous studies have found that papers with publicly available datasets receive a higher number of citations than similar studies without available data. However, few previous analyses have had the statistical power to control for the many variables known to predict citation rate, which has led to uncertain estimates of the “citation benefit”. Furthermore, little is known about patterns in data reuse over time and across datasets. Method and Results. Here, we look at citation rates while controlling for many known citation predictors and investigate the variability of data reuse. In a multivariate regression on 10,555 studies that created gene expression microarray data, we found that studies that made data available in a public repository received 9% (95% confidence interval: 5% to 13% more citations than similar studies for which the data was not made available. Date of publication, journal impact factor, open access status, number of authors, first and last author publication history, corresponding author country, institution citation history, and study topic were included as covariates. The citation benefit varied with date of dataset deposition: a citation benefit was most clear for papers published in 2004 and 2005, at about 30%. Authors published most papers using their own datasets within two years of their first publication on the dataset, whereas data reuse papers published by third-party investigators continued to accumulate for at least six years. To study patterns of data reuse directly, we compiled 9,724 instances of third party data reuse via mention of GEO or ArrayExpress accession numbers in the full text of papers. The level of third-party data use was high: for 100 datasets deposited in year 0, we estimated that 40 papers in PubMed reused a

  4. Citation et allusion dans le Décaméron

    OpenAIRE

    Perrus, Claude

    2013-01-01

    Étant donné la complexité du réseau intertextuel présent dans le Décaméron, cette étude se borne à l'examen de quelques cas de citations, de réminiscences, et surtout d'allusions en relation avec la stratégie de l'auteur, la pratique allusiva occupant un large espace dans l'œuvre de Boccace. Y sont distinguées les citations présentes dans le discours auctorial (proemio, discours d'exorde et de conclusion des narrateurs) – discours de défense ou usage ludique voire parodique de la citation – e...

  5. Data reuse and the open data citation advantage

    Science.gov (United States)

    Vision, Todd J.

    2013-01-01

    Background. Attribution to the original contributor upon reuse of published data is important both as a reward for data creators and to document the provenance of research findings. Previous studies have found that papers with publicly available datasets receive a higher number of citations than similar studies without available data. However, few previous analyses have had the statistical power to control for the many variables known to predict citation rate, which has led to uncertain estimates of the “citation benefit”. Furthermore, little is known about patterns in data reuse over time and across datasets. Method and Results. Here, we look at citation rates while controlling for many known citation predictors and investigate the variability of data reuse. In a multivariate regression on 10,555 studies that created gene expression microarray data, we found that studies that made data available in a public repository received 9% (95% confidence interval: 5% to 13%) more citations than similar studies for which the data was not made available. Date of publication, journal impact factor, open access status, number of authors, first and last author publication history, corresponding author country, institution citation history, and study topic were included as covariates. The citation benefit varied with date of dataset deposition: a citation benefit was most clear for papers published in 2004 and 2005, at about 30%. Authors published most papers using their own datasets within two years of their first publication on the dataset, whereas data reuse papers published by third-party investigators continued to accumulate for at least six years. To study patterns of data reuse directly, we compiled 9,724 instances of third party data reuse via mention of GEO or ArrayExpress accession numbers in the full text of papers. The level of third-party data use was high: for 100 datasets deposited in year 0, we estimated that 40 papers in PubMed reused a dataset by year 2

  6. Geographic bias in citation rates of conservation research.

    Science.gov (United States)

    Meijaard, Erik; Cardillo, Marcel; Meijaard, Emily M; Possingham, Hugh P

    2015-06-01

    We investigated whether the impact of conservation science is greater for research conducted in countries with more pressing conservation problems. We quantified research impact for 231 countries based on 2 citation metrics (mean cites per paper and h index) and fitted models predicting research impact based on number of threatened bird and mammal species (as a measure of conservation importance of a country) and a range of demographic variables. Citation rates of conservation research increased as a country's conservation need increased and as human population, quality of governance, and wealth increased. Even after accounting for these factors, citation rates among regions and countries within regions varied significantly. The conservation research community needs to consider ways to begin addressing the entrenched disadvantages some countries have when it comes to initiating projects and producing high-quality research. © 2015 Society for Conservation Biology.

  7. VALUATION IN THE CONSTITUTIONAL ERA

    African Journals Online (AJOL)

    Brimer

    VALUATION IN THE CONSTITUTIONAL ERA. WJ du Plessis *. Which way you ought to go depends on where you want to get to... - Lewis Carroll, Alice in Wonderland1. 1. Introduction. The Constitution established a single system of law shaped by the Constitution itself.2 It protected certain existing rights but it also initiated ...

  8. How accessibility influences citation counts: The case of citations to the full text articles available from ResearchGate

    Directory of Open Access Journals (Sweden)

    Mohammad Sababi

    2017-08-01

    Full Text Available It is generally believed that the number of citations to an article can positively be correlated to its free online availability. In the present study, we investigated the possible impact of academic social networks on the number of citations. We chose the social web service “ResearchGate” as a case. This website acts both as a social network to connect researchers, and at the same time, as an open access repository to publish post-print version of the accepted manuscripts and final versions of open access articles. We collected the data of 1823 articles published by the authors from four different universities. By analyzing these data, we showed that although different levels of full text availability are observed for the four universities, there is always a significant positive correlation between full text availability and the citation count. Moreover, we showed that both post-print version and publisher’s version (i.e., final published version of the archived manuscripts receive more citations than non-OA articles, and the difference in the citation counts of post-print manuscripts and publisher’s version articles is nonsignificant.

  9. Cultural and Technological Issues and Solutions for Geodynamics Software Citation

    Science.gov (United States)

    Heien, E. M.; Hwang, L.; Fish, A. E.; Smith, M.; Dumit, J.; Kellogg, L. H.

    2014-12-01

    Computational software and custom-written codes play a key role in scientific research and teaching, providing tools to perform data analysis and forward modeling through numerical computation. However, development of these codes is often hampered by the fact that there is no well-defined way for the authors to receive credit or professional recognition for their work through the standard methods of scientific publication and subsequent citation of the work. This in turn may discourage researchers from publishing their codes or making them easier for other scientists to use. We investigate the issues involved in citing software in a scientific context, and introduce features that should be components of a citation infrastructure, particularly oriented towards the codes and scientific culture in the area of geodynamics research. The codes used in geodynamics are primarily specialized numerical modeling codes for continuum mechanics problems; they may be developed by individual researchers, teams of researchers, geophysicists in collaboration with computational scientists and applied mathematicians, or by coordinated community efforts such as the Computational Infrastructure for Geodynamics. Some but not all geodynamics codes are open-source. These characteristics are common to many areas of geophysical software development and use. We provide background on the problem of software citation and discuss some of the barriers preventing adoption of such citations, including social/cultural barriers, insufficient technological support infrastructure, and an overall lack of agreement about what a software citation should consist of. We suggest solutions in an initial effort to create a system to support citation of software and promotion of scientific software development.

  10. Characteristics associated with citation rate of the medical literature.

    Directory of Open Access Journals (Sweden)

    Abhaya V Kulkarni

    Full Text Available BACKGROUND: The citation rate for articles is viewed as a measure of their importance and impact; however, little is known about what features of articles are associated with higher citation rate. METHODOLOGY/PRINCIPAL FINDINGS: We conducted a cohort study of all original articles, regardless of study methodology, published in the Lancet, JAMA, and New England Journal of Medicine, from October 1, 1999 to March 31, 2000. We identified 328 articles. Two blinded, independent reviewers extracted, in duplicate, nine variables from each article, which were analyzed in both univariable and multivariable linear least-squares regression models for their association with the annual rate of citations received by the article since publication. A two-way interaction between industry funding and an industry-favoring result was tested and found to be significant (p = 0.02. In our adjusted analysis, the presence of industry funding and an industry-favoring result was associated with an increase in annual citation rate of 25.7 (95% confidence interval, 8.5 to 42.8 compared to the absence of both industry funding and industry-favoring results. Higher annual rates of citation were also associated with articles dealing with cardiovascular medicine (13.3 more; 95% confidence interval, 3.9 to 22.3 and oncology (12.6 more; 95% confidence interval, 1.2 to 24.0, articles with group authorship (11.1 more; 95% confidence interval, 2.7 to 19.5, larger sample size and journal of publication. CONCLUSIONS/SIGNIFICANCE: Large trials, with group authorship, industry-funded, with industry-favoring results, in oncology or cardiology were associated with greater subsequent citations.

  11. Arengud rahvusvahelises eraõiguses / Ilona Nurmela

    Index Scriptorium Estoniae

    Nurmela, Ilona, 1976-

    2000-01-01

    Põlvnemisest, samasooliste "abielust" ja sugu vahetanud isikute abiellumisvõimalustest Eesti ja rahvusvahelises eraõiguses. Rooma ja Brüsseli konventsioonidest. Euroopa Liidu õiguse mõjust rahvusvahelisele eraõigusele

  12. Editorial - Wikipedia popularity from a citation analysis point of view

    OpenAIRE

    Alireza Noruzi

    2009-01-01

    This study aims to provide an overview of the citation rate of Wikipedia since its launch in 2004. It is worth noting that since its inception Wikipedia, the free international multi-lingual encyclopedia, has been subject to criticism (Fasoldt, 2004; Orlowski, 2005; Lipczynska, 2005). Wikipedia as a popular web resource appears in response to every keyword search on Google. One way to test the popularity of a web resource is to use citation analysis method to predict to what extend it is cite...

  13. Document co-citation analysis to enhance transdisciplinary research.

    Science.gov (United States)

    Trujillo, Caleb M; Long, Tammy M

    2018-01-01

    Specialized and emerging fields of research infrequently cross disciplinary boundaries and would benefit from frameworks, methods, and materials informed by other fields. Document co-citation analysis, a method developed by bibliometric research, is demonstrated as a way to help identify key literature for cross-disciplinary ideas. To illustrate the method in a useful context, we mapped peer-recognized scholarship related to systems thinking. In addition, three procedures for validation of co-citation networks are proposed and implemented. This method may be useful for strategically selecting information that can build consilience about ideas and constructs that are relevant across a range of disciplines.

  14. Bibliometric Analysis of the Citation Patterns in Chinese Librarianship: an International Electronic Journal

    Directory of Open Access Journals (Sweden)

    Kotti Thavamani

    2015-06-01

    Full Text Available This paper analyzed the citation patterns in the Chinese Librarianship: An International Electronic Journal (CLIEJ. A total of 142 articles and 2,229 citations were examined to ascertain the contributions by year, citation patterns by period, contributions by forms, authorship patterns, and ranking of journals by citation numbers. 2012 and 2013 were the most productive years of CLIEJ. 47 articles (33.098% top the list with 11-20 citations. A total of 3,231 authors were identified in the 2,229 citations. 2013 was the year with 344 (15.433% citations. Most of the citations (1,126; 50.515% were from journal articles. 1,684 (52.120% of the total citations were from journal articles with multiple authors.

  15. Citation classics in suicide and life threatening behavior: a research note.

    Science.gov (United States)

    Stack, Steven

    2012-12-01

    The number of citations a scholarly work receives is a common measure of its impact on the scientific literature; "citation classics" are the most highly cited works. The content of Suicide and Life-Threatening Behavior (SLTB) citation classics is described here. The impact of SLTB citation classics is compared to their counterparts in journals having published the most suicide papers. All data are from the ISI electronic venue on the Web of Science and refer to the number of citations the top 1% of works received in each of ten journals from 1975 through August 10, 2011. Among all ten journals, SLTB ranked first in the number of works on suicide. The principle theme of half of SLTB suicide classics was literature review. The median number of citations for SLTB citation classics (top 1%) was 121.5, with a range between 96 and 279 citations, but classics from generalized psychiatric journals received more citations as anticipated. Journal impact factors explained 73% of the variance in classic's citation counts across journals. On average, suicide classics received 30% more citations than all classics. Among a second group of five specialized suicide journals, however, SLTB ranked first in average 5-year impact. Although SLTB produced the highest number of suicide articles of any journal, SLTB's citation classics received fewer citations than suicide classics in high-impact/prestige, general journals. Future work is needed to assess what predicts which SLTB articles ultimately become citation classics. © 2012 The American Association of Suicidology.

  16. Highly Cited Occupational Therapy Articles in the Science Citation Index Expanded and Social Sciences Citation Index: A Bibliometric Analysis.

    Science.gov (United States)

    Brown, Ted; Gutman, Sharon A; Ho, Yuh-Shan; Fong, Kenneth N K

    A bibliometric analysis was completed of highly cited occupational therapy literature and authors published from 1991 to 2014 and accessible in the Science Citation Index Expanded (SCI-Expanded) and Social Sciences Citation Index (SSCI) databases. Data were obtained from the SCI-Expanded and SSCI. Articles referenced >100 times were categorized as highly cited articles (HCA). Of 6,486 articles found, 31 were categorized as HCA. The American Journal of Occupational Therapy published the largest number of HCA (n = 8; 26%). The 31 HCA were distributed across seven countries: United States (20 articles), Canada (3), United Kingdom (3), Australia (2), the Netherlands (1), New Zealand (1), and Sweden (1). The three authors with the highest Y-index were S. J. Page, F. Clark, and W. Dunn. A latency period of 4 to 5 yr post-publication appears to be needed for a journal article to gain citations.

  17. Recognition of Emerging Technology Trends. Class-selective study of citations in the U.S. Patent Citation Network

    CERN Document Server

    Bruck, Péter; Szente, Judit; Tobochnik, Jan; Érdi, Péter

    2016-01-01

    By adopting a citation-based recursive ranking method for patents the evolution of new fields of technology can be traced. Specifically, it is demonstrated that the laser / inkjet printer technology emerged from the recombination of two existing technologies: sequential printing and static image production. The dynamics of the citations coming from the different "precursor" classes illuminates the mechanism of the emergence of new fields and give the possibility to make predictions about future technological development. For the patent network the optimal value of the PageRank damping factor is close to 0.5; the application of d=0.85 leads to unacceptable ranking results.

  18. Results of a Citation Analysis of Knowledge Management in Education

    Science.gov (United States)

    Uzunboylu, Huseyin; Eris, Hasan; Ozcinar, Zehra

    2011-01-01

    The purpose of this study was to examine research and trends in knowledge management in education (KME) published in selected professional sources during the period 1990-2008. Citation analysis was used in this study to investigate documents related to KME, which were indexed in the Web of Science, Education Researches Information Center and…

  19. Annotated bibliography on high-intensity linear accelerators. [240 citations

    Energy Technology Data Exchange (ETDEWEB)

    Jameson, R.A.; Roybal, E.U.

    1978-01-01

    A technical bibliography covering subjects important to the design of high-intensity beam transport systems and linear accelerators is presented. Space charge and emittance growth are stressed. Subject and author concordances provide cross-reference to detailed citations, which include an abstract and notes on the material. The bibliography resides in a computer database that can be searched for key words and phrases.

  20. Page number not for citation purposes 1 Assessment of the ...

    African Journals Online (AJOL)

    Page number not for citation purposes 1 Assessment of the household availability of oral rehydration salt in rural Botswana. ... The health education and community sensitization efforts need to go beyond health facilities via other means like the media and community based approaches. Approaches aimed at improving the ...

  1. Citations to Wikipedia in Chemistry Journals: A Preliminary Study

    Science.gov (United States)

    Brazzeal, Bradley

    2011-01-01

    Wikipedia has been the subject of an increasing number of studies. Many of these have focused on the quality of Wikipedia articles and the use of Wikipedia by students. Little research has focused on the use of Wikipedia by scholars. This study helps to fill that gap by examining citations to Wikipedia in chemistry journals from three major…

  2. Software and the Scientist: Coding and Citation Practices in Geodynamics

    Science.gov (United States)

    Hwang, Lorraine; Fish, Allison; Soito, Laura; Smith, MacKenzie; Kellogg, Louise H.

    2017-11-01

    In geodynamics as in other scientific areas, computation has become a core component of research, complementing field observation, laboratory analysis, experiment, and theory. Computational tools for data analysis, mapping, visualization, modeling, and simulation are essential for all aspects of the scientific workflow. Specialized scientific software is often developed by geodynamicists for their own use, and this effort represents a distinctive intellectual contribution. Drawing on a geodynamics community that focuses on developing and disseminating scientific software, we assess the current practices of software development and attribution, as well as attitudes about the need and best practices for software citation. We analyzed publications by participants in the Computational Infrastructure for Geodynamics and conducted mixed method surveys of the solid earth geophysics community. From this we learned that coding skills are typically learned informally. Participants considered good code as trusted, reusable, readable, and not overly complex and considered a good coder as one that participates in the community in an open and reasonable manor contributing to both long- and short-term community projects. Participants strongly supported citing software reflected by the high rate a software package was named in the literature and the high rate of citations in the references. However, lacking are clear instructions from developers on how to cite and education of users on what to cite. In addition, citations did not always lead to discoverability of the resource. A unique identifier to the software package itself, community education, and citation tools would contribute to better attribution practices.

  3. Who's Who in Introductory Psychology Textbooks: A Citation Analysis Redux

    Science.gov (United States)

    Griggs, Richard A.; Christopher, Andrew N.

    2016-01-01

    It is important to assess periodically how introductory textbooks portray our discipline because introductory psychology is the most popular psychology course, almost all teachers use textbooks for it, and textbooks play a major role in defining the course for students. To do so, past studies have used textbook citation analyses. We analyzed…

  4. Geopressured geothermal bibliography. Volume I. Citation extracts. Second edition

    Energy Technology Data Exchange (ETDEWEB)

    Sepehrnoori, K.; Carter, F.; Schneider, R.; Street, S.; McGill, K.

    1983-05-01

    This annoted bibliography contains 1131 citations. It represents reports, papers, and articles appearing over the past eighteen years covering topics from the scientific and technical aspects of geopressured geothermal reservoirs to the social, environmental, and legal considerations of exploiting those reservoirs for their energy resources. Six indexes include: author, conference title, descriptor, journal title, report number, and sponsor. (MHR)

  5. Citation Behaviors Observed in Japanese EFL Students' Argumentative Writing

    Science.gov (United States)

    Kamimura, Taeko

    2014-01-01

    Effective use of outside source texts is one of the key components of successful academic writing. This study aims at clarifying Japanese university EFL students' citation behaviors in producing argumentative writing. Twenty-six Japanese university EFL students wrote an argumentative essay. Their essays were analyzed quantitatively by six…

  6. Comparing Medline citations using modified N-grams

    Science.gov (United States)

    Nawab, Rao Muhammad Adeel; Stevenson, Mark; Clough, Paul

    2014-01-01

    Objective We aim to identify duplicate pairs of Medline citations, particularly when the documents are not identical but contain similar information. Materials and methods Duplicate pairs of citations are identified by comparing word n-grams in pairs of documents. N-grams are modified using two approaches which take account of the fact that the document may have been altered. These are: (1) deletion, an item in the n-gram is removed; and (2) substitution, an item in the n-gram is substituted with a similar term obtained from the Unified Medical Language System  Metathesaurus. N-grams are also weighted using a score derived from a language model. Evaluation is carried out using a set of 520 Medline citation pairs, including a set of 260 manually verified duplicate pairs obtained from the Deja Vu database. Results The approach accurately detects duplicate Medline document pairs with an F1 measure score of 0.99. Allowing for word deletions and substitution improves performance. The best results are obtained by combining scores for n-grams of length 1–5 words. Discussion Results show that the detection of duplicate Medline citations can be improved by modifying n-grams and that high performance can also be obtained using only unigrams (F1=0.959), particularly when allowing for substitutions of alternative phrases. PMID:23715801

  7. Comparing Medline citations using modified N-grams.

    Science.gov (United States)

    Nawab, Rao Muhammad Adeel; Stevenson, Mark; Clough, Paul

    2014-01-01

    We aim to identify duplicate pairs of Medline citations, particularly when the documents are not identical but contain similar information. Duplicate pairs of citations are identified by comparing word n-grams in pairs of documents. N-grams are modified using two approaches which take account of the fact that the document may have been altered. These are: (1) deletion, an item in the n-gram is removed; and (2) substitution, an item in the n-gram is substituted with a similar term obtained from the Unified Medical Language System Metathesaurus. N-grams are also weighted using a score derived from a language model. Evaluation is carried out using a set of 520 Medline citation pairs, including a set of 260 manually verified duplicate pairs obtained from the Deja Vu database. The approach accurately detects duplicate Medline document pairs with an F1 measure score of 0.99. Allowing for word deletions and substitution improves performance. The best results are obtained by combining scores for n-grams of length 1-5 words. Results show that the detection of duplicate Medline citations can be improved by modifying n-grams and that high performance can also be obtained using only unigrams (F1=0.959), particularly when allowing for substitutions of alternative phrases.

  8. GENERAL MECHANISMS OF CITATION SYSTEM OF SCIENTIFIC ARTICLES

    Directory of Open Access Journals (Sweden)

    Віктор Дмитрович ГОГУНСЬКИЙ

    2016-02-01

    Full Text Available Transformation competitive environment of higher education in the creation of effective mechanisms of management research encourages research teams and individual researchers to analyze their activity Publication search methods for improvement of citations of scientific publications. The paper analyzed the life cycle of scientific publications and show that the way to promote scientific articles in the world community inherent properties of Markov processes. Application of Markov chains allows top ground the need for active participation of the authors in the distribution of its publications in different scientometric databases, repositories of scientific and social networks. Markov model to describe decomposition of scientists made certain discrete states and proposed a schematic diagram of transitions between them. The model's 5A fully reflect the properties of the system. Communication influences the probability of changing system states with consistent movement along the trajectory from a lack of information about the publication to familiarize with it because of the positive attitude to state its citation. This is a must as well as a negative attitude to the publications. Proved that improve performance citation of scientific publications in the case of using Google Scholar, ORCID, Mendeley, Academia, ResearchGate, and others. The active participation of authors in their publications available in these systems leads to an increase in the proportion of articles that are available to colleagues in the global scientific community that is becoming one of the factors of increase in citations.

  9. Analysis of bibliometric indicators to determine citation bias

    Science.gov (United States)

    Publications from the 1995 to 2004 period (and cited throughout July 2013) were analyzed to determine if the plant species used in research studies influenced the number of citations that papers received. Bibliometric data of papers from 108 plant species were obtained for the research fields of Gen...

  10. 75 FR 76056 - FEDERAL REGISTER CITATION OF PREVIOUS ANNOUNCEMENT:

    Science.gov (United States)

    2010-12-07

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION Sunshine Act Meeting FEDERAL REGISTER CITATION OF PREVIOUS ANNOUNCEMENT: STATUS: Closed meeting. PLACE: 100 F Street, NE., Washington, DC. DATE AND TIME OF PREVIOUSLY ANNOUNCED MEETING: Thursday...

  11. Competitive Funding, Citation Regimes, and the Diminishment of Breakthrough Research

    Science.gov (United States)

    Young, Mitchell

    2015-01-01

    At first glance Sweden looks like a researcher's paradise with high levels of GDP investment in research and high scores on citation indexes, yet recent studies have suggested that Sweden might be losing its edge in groundbreaking research. This paper explores why that is happening by examining researchers' logics of decision-making at a large…

  12. Important Literature in Endocrinology: Citation Analysis and Historial Methodology.

    Science.gov (United States)

    Hurt, C. D.

    1982-01-01

    Results of a study comparing two approaches to the identification of important literature in endocrinology reveals that association between ranking of cited items using the two methods is not statistically significant and use of citation or historical analysis alone will not result in same set of literature. Forty-two sources are appended. (EJS)

  13. Discovering Information Use in Agricultural Economics: A Citation Study

    Science.gov (United States)

    Zhang, Li

    2007-01-01

    This citation study investigated the research needs and activity of U.S. agricultural economists. Journals were the dominant format of cited sources. Books, government publications, and working papers formed the other important types of references, whereas electronic sources were sparsely used. Subject scatter in this interdisciplinary field was…

  14. Fat Grafting: A Citation Analysis of the Seminal Articles

    Directory of Open Access Journals (Sweden)

    Cormac W. Joyce, MB, BCh

    2015-01-01

    Conclusions: The scientific relevance of a published work is reflected in the number of citations from peers that it receives. Therefore, the 100 most-cited papers in fat grafting have been the most influential articles on this field, and they are likely to be the ones that are remembered most.

  15. Citation analysis of doctoral theses submitted to the department of ...

    African Journals Online (AJOL)

    Most of the citations were to journals and books. Majority of the sources cited were old. Also, most reference materials were foreign in origin. The study highlights the need for more grants to ease the purchase of more recent and relevant materials for research work. Indigenous publishers are also encouraged to motivate ...

  16. Citation Analysis of Skinner's "Verbal Behavior:" 1984-2004

    Science.gov (United States)

    Dymond, S.; O'Hora, D.; Whelan, R.; O'Donovan, A.

    2006-01-01

    The present study undertook an updated citation analysis of Skinner's (1957) "Verbal Behavior". All articles that cited "Verbal Behavior" between 1984 and 2004 were recorded and content analyzed into one of five categories; four empirical and one nonempirical. Of the empirical categories, studies that employed a verbal operant from Skinner's…

  17. Cyber-Bullying in School Settings: A Research Citation Analysis

    Science.gov (United States)

    Piotrowski, Chris

    2011-01-01

    Research on the topic of cyber-bullying has proliferated over the past decade, particularly on its impact on school-aged children. Thus, it would be of interest to examine the scope and extent of research interest in the topic in scholarly publications. This paper reports on a reference citation analysis of the database PsycINFO, using…

  18. [Citation analysis of papers from Chinese Journal of Gastrointestinal Surgery].

    Science.gov (United States)

    Zhang, Ling; Guo, Hong-bo; Li, Shan; Li, Yan-ping

    2013-01-01

    To analyze and evaluate the quality and academic level of the Chinese Journal of gastrointestinal surgery. Based on the data from WanFang data, a statistical research was carried out with the methods of bibliometrics and citation analysis to investigate the Details of the papers from Chinese Journal of gastrointestinal surgery cited by other journal articles.The important analysis indexes included number of published papers, number of cited papers, citation frequency, citation time distribution and difference, authors and citation journal distribution, etc. Of all the 1442 papers published by the Chinese Journal of gastrointestinal surgery. From 2007 to 2011, 392 papers are cited, which account for about 27.18% of all cited numbers with total cited 998 times .. Immediacy index from 2009-2011 were respectively 0.08, 0.04 and 0.08. Cited half-life was 0.08 in 2011. A relatively large proportion of papers published in the journal have ever been cited, indicating that the whole quality of the journal is considerably high. But due to its relatively short history of publication the journal still lacks papers with deep impact and great significance.

  19. A Review of Citation Analysis Methodologies for Collection Management

    Science.gov (United States)

    Hoffmann, Kristin; Doucette, Lise

    2012-01-01

    While there is a considerable body of literature that presents the results of citation analysis studies, most researchers do not provide enough detail in their methodology to reproduce the study, nor do they provide rationale for methodological decisions. In this paper, we review the methodologies used in 34 recent articles that present a…

  20. Adding Value to Scholarly Journals through a Citation Indexing System

    Science.gov (United States)

    Zainab, A. N.; Abrizah, A.; Raj, R. G.

    2013-01-01

    Purpose: The purpose of this paper is to relate the problems identified about scholarly journal publishing in Malaysia to establish motivation for the system development; to describe the design of MyCite, a Malaysian citation indexing system and to highlight the added value to journals and articles indexed through the generation of bibliometrics…

  1. Exploiting citation networks for large-scale author name disambiguation

    CERN Document Server

    Schulz, Christian; Petersen, Alexander M; Penner, Orion; Helbing, Dirk

    2014-01-01

    We present a novel algorithm and validation method for disambiguating author names in very large bibliographic data sets and apply it to the full Web of Science (WoS) citation index. Our algorithm relies only upon on the author and citation graphs available for the whole period covered by the WoS. A pair-wise publication similarity metric, which is based on common co-authors, self-citations, shared references and citations, is established to perform a two-step agglomerative clustering that first connects linked papers and then merges similar clusters. This parameterized model is optimized towards an h-index based recall, which favors the inclusion of well-cited publications, and a name-initials-based precision using WoS metadata and cross-referenced Google Scholar profiles. Despite the use of limited metadata, we reach a recall of 87% and a precision of 88% with a preference for researchers with high $h$-index values. 47 million articles of WoS can be disambiguated on a single machine in less than a day. We d...

  2. Manajemen Pendidikan dalam Era Reformasi

    Directory of Open Access Journals (Sweden)

    Willem Mantja

    2016-02-01

    Full Text Available Planning, Organizing, actuating, and controlling are the functions of educational management of all kinds of fields of management. The differences between educational management and others are in the components of its substances. Educational management components include instructional, personnel, student, facilitation, financial, include and school public relation management. The educational managers in the reform era require a competence and managerial skills to perform their jobs as professional managers

  3. Into the Era of shifts

    DEFF Research Database (Denmark)

    Dencik, Lars

    2005-01-01

    Globalization and new communication technologies shape new increasingly unpredictable living conditions. Societies as individuals face a world og growing predictive impotence. Traditions loose their power as guides for maneuvering - where traditions was reflection will be. At the same time peoples......, life styles, experiences and sexuality. Even thougts and feelings.In the era of shifts we shall be living with ever more design in an ever less designed world....

  4. Power laws in citation distributions: evidence from Scopus.

    Science.gov (United States)

    Brzezinski, Michal

    Modeling distributions of citations to scientific papers is crucial for understanding how science develops. However, there is a considerable empirical controversy on which statistical model fits the citation distributions best. This paper is concerned with rigorous empirical detection of power-law behaviour in the distribution of citations received by the most highly cited scientific papers. We have used a large, novel data set on citations to scientific papers published between 1998 and 2002 drawn from Scopus. The power-law model is compared with a number of alternative models using a likelihood ratio test. We have found that the power-law hypothesis is rejected for around half of the Scopus fields of science. For these fields of science, the Yule, power-law with exponential cut-off and log-normal distributions seem to fit the data better than the pure power-law model. On the other hand, when the power-law hypothesis is not rejected, it is usually empirically indistinguishable from most of the alternative models. The pure power-law model seems to be the best model only for the most highly cited papers in "Physics and Astronomy". Overall, our results seem to support theories implying that the most highly cited scientific papers follow the Yule, power-law with exponential cut-off or log-normal distribution. Our findings suggest also that power laws in citation distributions, when present, account only for a very small fraction of the published papers (less than 1 % for most of science fields) and that the power-law scaling parameter (exponent) is substantially higher (from around 3.2 to around 4.7) than found in the older literature.

  5. A bibliometric analysis of the citation classics of acute appendicitis.

    Science.gov (United States)

    Varzgalis, Manvydas; Bowden, Dermot J; Mc Donald, Ciaran K; Kerin, Michael J

    2017-07-01

    Acute appendicitis is one of the most commonly encountered emergency surgical conditions. An understanding of the most highly cited research works in this field is key to good evidence based clinical practice. To perform a bibliometric analysis on the 100 most frequently cited articles in the field of acute appendicitis. The database of the Institute for Scientific Information (ISI) Web of Science Expanded citation index was searched to identify the 100 most frequently cited articles in the field of acute appendicitis. The web of science expanded citation index tracks article citations made since 1946. The top 100 most frequently cited articles were selected for analysis in this series. The most frequently cited article was cited 649 times and the least cited three article 93 times. The average number of citations per article was 167.74. The top 100 cited articles originated from 17 countries. Over half of the papers originated from the USA. Fifty-one of the papers concentrated on diagnostics of acute appendicitis. Thirty-six papers looked at the treatment of acute appendicitis with 30 of these dealing with the surgical management of the disease. There were 6 studies at level 1a, 20 studies at level 1b and 43,5,17 and 9 studies at levels 2, 3, 4 and 5 respectively. Bibliometric analysis of the citation classics in a given field can provide interesting insights into the relationship between the quality of research outputs and clinical practice. The study of acute appendicitis remains an active field of research with a growing body of higher quality evidence underpinning our clinical practice.

  6. Citation classics in central nervous system inflammatory demyelinating disease.

    Science.gov (United States)

    Kim, Jee-Eun; Park, Kang M; Kim, Yerim; Yoon, Dae Y; Bae, Jong S

    2017-06-01

    To identify and analyze the characteristics of the most influential articles about central nervous system (CNS) inflammatory demyelinating disease. The Institute for Scientific Information (ISI) Web of Science database and the 2014 Journal Citation Reports Science Edition were used to retrieve the top 100 cited articles on CNS inflammatory demyelinating disease. The citation numbers, journals, years of publication, authorships, article types, subjects and main issues were analyzed. For neuromyelitis optica (NMO), articles that were cited more than 100 times were regarded as a citation classic and described separately. The top 100 cited articles were published between 1972 and 2011 in 13 journals. The highest number of articles (n = 24) was published in Brain, followed by The New England Journal of Medicine (n = 21). The average number of citations was 664 (range 330-3,897), and 64% of the articles were from the United States and the United Kingdom. The majority of the top 100 cited articles were related to multiple sclerosis (n = 87), and only a few articles reported on other topics such as NMO (n = 9), acute disseminated encephalomyelitis (n = 2) and optic neuritis (n = 2). Among the top 100 cited articles, 77% were original articles. Forty-one citation classics were found for NMO. Our study provides a historical perspective on the research progress on CNS inflammatory demyelinating disease and may serve as a guide for important advances and trends in the field for associated researchers.

  7. HPT Roots and Branches: Analyzing over 45 Years of the Field's Own Citations. Part 2: Book Citations

    Science.gov (United States)

    Huglin, Linda M.

    2009-01-01

    This article is the second in a series of three that reviews the citation patterns of references cited in the collection of the International Society for Performance Improvement literature (journal articles from 1962-2007 and chapters in all three human performance technology handbooks). An analysis of books and book chapters cited is included, as…

  8. Identification of long-term concept-symbols among citations: Do common intellectual histories structure citation behavior?

    NARCIS (Netherlands)

    Comins, J.A.; Leydesdorff, L.

    Citation classics” are not only highly cited, but also cited during several decades. We explore whether the peaks in the spectrograms generated by Reference Publication Years Spectroscopy (RPYS) indicate such long-term impact by comparing across RPYS for subsequent time intervals. Multi-RPYS

  9. HPT Roots and Branches: Analyzing over 45 Years of the Field's Own Citations. Part 1--Journal Citations

    Science.gov (United States)

    Huglin, Linda M.

    2009-01-01

    This article is the first of a series of three that reviews the citation patterns of references cited in the entire collection of International Society for Performance Improvement (ISPI) journal articles (1962-2007) and all chapters published in the three editions of "Handbook of Human Performance Technology" (1992, 1999, and 2006). It includes an…

  10. HPT Roots and Branches: Analyzing over 45 Years of the Field's Own Citations. Part 3: Author Citations

    Science.gov (United States)

    Huglin, Linda M.

    2010-01-01

    This is the third and final article in a series of three that reviews the citation patterns of references cited in the entire collection of International Society for Performance Improvement journal articles (1962-2007) and all chapters published in the three human performance technology handbooks (Pershing, 2006; Stolovitch & Keeps, 1992, 1999).…

  11. Déjà vu-A study of duplicate citations in Medline

    National Research Council Canada - National Science Library

    Errami, Mounir; Hicks, Justin M; Fisher, Wayne; Trusty, David; Wren, Jonathan D; Long, Tara C; Garner, Harold R

    2008-01-01

    ...: eTBLAST, an automated citation matching tool, and Déjà vu, the duplicate citation database, are freely available at http://invention.swmed.edu/ and http://spore.swmed.edu/dejavu Contact: harold.garner@utsouthwestern.edu

  12. Improved citation status of World Journal Gastroenterology in 2004: Analysis of all reference citations by WJG and citations of WJG articles by other SCI journals during 1998-2004.

    Science.gov (United States)

    Ma, Lian-Sheng; Pan, Bo-Rong; Li, Wu-Zhou; Guo, Shi-Yu

    2005-01-07

    To determine the citation status in 2004 and the citation trend of WJG by analyzing all articles cited by WJG and all WJG articles cited by SCI journals during 1998-2004. The total number of published articles and reference citations in WJG, authors' self-citations, WJG's self-citations, citations of WJG articles by SCI journals and inappropriate citations in WJG during 1998-2004 were statistically analyzed. Data on self-citations of the articles published between 1998 and August 2004 (Issues 1-16) were from ISI SCI-E, and data on self-citations of articles published after August 2004 (Issues 17-24) were from the WJG Editorial Office. Data on citations of WJG articles by other journals between 1998 and August 2004 were from ISI SCI-E. Annual number of published articles: WJG published 179, 144, 211, 174, 236, 634 and 830 articles, respectively, in 1998, 1999, 2000, 2001, 2002, 2003 and 2004. The number in 2004 increased by 594, compared to that in 2002, giving an increased rate of 251.7%. Annual references cited by WJG were 2 123, 2 125, 6 244, 8 883, 11 442, 23 218 and 25 971, respectively, in 1998-2004. The average number was 31.3 per WJG article in 2004, which was less than that (48.5) in 2002, giving a reduction rate of 35.5%. Authors of WJG cited 125, 126, 343, 210, 354, 310 and 470 of their own published articles, respectively, in 1998-2004. The average number of authors' self-citations was 0.57 per WJG article in 2004, which was decreased by 0.93 or 62.0%, compared with that in 2002. Annual numbers of journal's self-citations: Authors of WJG articles cited 5, 7, 373, 733, 1474, 1947 and 1412 of WJG articles, respectively, in 1998-2004. The average number of journal's self-citations was 1.70 per WJG article in 2004, which decreased by 4.55 or 72.8%. No WJG article was cited in 1998 by other SCI journals. However, the number of citations steadily increased afterwards, with 16, 18, 39, 85, 372 and 580, respectively, in 1999-2004. The average number of citations

  13. Developing Data Citations from Digital Object Identifier Metadata

    Science.gov (United States)

    Wanchoo, L.; James, N.

    2015-12-01

    NASA's Earth Science Data and Information System (ESDIS) Project has been processing information for the registration of Digital Object Identifiers (DOI) for the last five years of which an automated system has been in operation for the last two years. The ESDIS DOI registration system has registered over 2000 DOIs with over 1000 DOIs held in reserve until all required information has been collected. By working towards the goal of assigning DOIs to the 8000+ data collections under its management, ESDIS has taken the first step towards facilitating the use of data citations with those products. When registering DOIs, ESDIS requires certain DOI elements be collected for the DOI landing page as recommended by NASA's Earth Science Data System Working Group (ESDSWG). The landing page provides sufficient information to 1) identify NASA data as referenced in a science publication, 2) credit data creators and distributors, and 3) access the data itself enabling the trace-ability and reproducibility of the data. However, the required elements for this DOI landing page are also the core required elements for forming an Earth science data citation. Data citations are getting significant attention from the scientific community and data centers alike. So to encourage the citing of Earth science data products, each product DOI landing page displays a sample data citation and makes the required citation elements available to DataCite for use in its Data Citation generation tool. This paper will describe that process. ESDIS data centers are constantly developing technologies to better serve the Earth science user community such as Geospatial Interactive Online Visualization ANd aNalysis Infrastructure (GIOVANNI), Land and Atmospheric Near Real-Time Capability for EOS (LANCE), and advanced tools that support virtual data collections, and virtual data products. These all provide easier access to data and make possible the creation of data products with user specified parameters

  14. References that anyone can edit: review of Wikipedia citations in peer reviewed health science literature.

    Science.gov (United States)

    Bould, M Dylan; Hladkowicz, Emily S; Pigford, Ashlee-Ann E; Ufholz, Lee-Anne; Postonogova, Tatyana; Shin, Eunkyung; Boet, Sylvain

    2014-03-06

    To examine indexed health science journals to evaluate the prevalence of Wikipedia citations, identify the journals that publish articles with Wikipedia citations, and determine how Wikipedia is being cited. Bibliometric analysis. Publications in the English language that included citations to Wikipedia were retrieved using the online databases Scopus and Web of Science. To identify health science journals, results were refined using Ulrich's database, selecting for citations from journals indexed in Medline, PubMed, or Embase. Using Thomson Reuters Journal Citation Reports, 2011 impact factors were collected for all journals included in the search. Resulting citations were thematically coded, and descriptive statistics were calculated. 1433 full text articles from 1008 journals indexed in Medline, PubMed, or Embase with 2049 Wikipedia citations were accessed. The frequency of Wikipedia citations has increased over time; most citations occurred after December 2010. More than half of the citations were coded as definitions (n = 648; 31.6%) or descriptions (n=482; 23.5%). Citations were not limited to journals with a low or no impact factor; the search found Wikipedia citations in many journals with high impact factors. Many publications are citing information from a tertiary source that can be edited by anyone, although permanent, evidence based sources are available. We encourage journal editors and reviewers to use caution when publishing articles that cite Wikipedia.

  15. analysis of journal citations in thesis/dissertations of post graduates ...

    African Journals Online (AJOL)

    User

    A citation analysis of theses/dissertations from Department of Political Science, University of. Calabar, Calabar – Nigeria from 2006 – 2010 was undertaken to determine the most cited journals by graduate students and their availability in the University library. There were 343 journal citations and a cumulative citation ...

  16. Citation Rate of Highly-Cited Papers in 100 Kinesiology-Related Journals

    Science.gov (United States)

    Knudson, Duane

    2015-01-01

    This study extended previous research on several citation-based bibliometric variables for highly cited articles in a large (N = 100) number of journals related to Kinesiology. Total citations and citation rate of the 30 most highly cited articles in each journal were identified by searchers of "Google Scholar (GS)". Other major…

  17. The New Generation of Citation Indexing in the Age of Digital Libraries

    Science.gov (United States)

    Liu, Mengxiong; Cabrera, Peggy

    2008-01-01

    As the Web is becoming a powerful new medium in scientific publication and scholarly communication, citation indexing has found a new application in the digital environment. The authors reviewed the new developments in Web-based citation indexing and conducted a case study in three major citation search tools, "Web of Science", "Scopus" and…

  18. What Do Citation Patterns Reveal about the Outdoor Education Field? A Snapshot 2000-2013

    Science.gov (United States)

    Brookes, Andrew; Stewart, Alistair

    2016-01-01

    This study considered what insights into outdoor education (OE) research and scholarship could be gleaned from citation indices and patterns. Citation indices have long been used as ranking tools in the physical sciences, and more recently have been used in humanities and social sciences. High citation measures indicate high research impact,…

  19. 40 CFR 152.93 - Citation of a previously submitted valid study.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Citation of a previously submitted... Data Submitters' Rights § 152.93 Citation of a previously submitted valid study. An applicant may... the citation is necessary. (b) Study previously submitted by another person. If the applicant is not...

  20. Citation Help in Databases: The More Things Change, the More They Stay the Same

    Science.gov (United States)

    Van Ullen, Mary; Kessler, Jane

    2012-01-01

    In 2005, the authors reviewed citation help in databases and found an error rate of 4.4 errors per citation. This article describes a follow-up study that revealed a modest improvement in the error rate to 3.4 errors per citation, still unacceptably high. The most problematic area was retrieval statements. The authors conclude that librarians…

  1. Prevalence and Citation Advantage of Gold Open Access in the Subject Areas of the Scopus Database

    Science.gov (United States)

    Dorta-González, Pablo; Santana-Jiménez, Yolanda

    2018-01-01

    The potential benefit of open access (OA) in relation to citation impact has been discussed in the literature in depth. The methodology used to test the OA citation advantage includes comparing OA vs. non-OA journal impact factors and citations of OA vs. non-OA articles published in the same non-OA journals. However, one problem with many studies…

  2. Age-Specific Citation Rates and the Egghe-Rao Function.

    Science.gov (United States)

    Burrell, Quentin L.

    2003-01-01

    Extends connections between retrospective citation age studies and reliability theory by considering the failure rate function from reliability, re-interpreted as the age-specific citation rate (ASCR). This is linked to earlier studies of retrospective citation distributions by Egghe and Ravichandra Rao who introduced a function claimed to…

  3. A large-scale analysis of impact factor biased journal self-citations

    NARCIS (Netherlands)

    Chorus, C.G.; Waltman, Ludo

    2016-01-01

    Based on three decades of citation data from across scientific fields of science, we study trends in impact factor biased self-citations of scholarly journals, using a purpose-built and easy to use citation based measure. Our measure is given by the ratio between i) the relative share of journal

  4. Answer Me These Questions Three: Using Online Training to Improve Students' Oral Source Citations

    Science.gov (United States)

    Buerkle, C. Wesley; Gearhart, Christopher C.

    2017-01-01

    This experimental study examines an online module designed to increase student competence in oral citation behavior using a mastery training strategy. Students in the experimental condition provided complete citations at a higher rate and provided more citation information for traditional and web-based sources compared with a control group without…

  5. Scholarly Publishing in the Internet Age: A Citation Analysis of Computer Science Literature.

    Science.gov (United States)

    Goodrum, Abby A.; McCain, Katherine W.; Lawrence, Steve; Giles, C. Lee

    2001-01-01

    Discussion of changes in scholarly communication due to the World Wide Web focuses on a comparison of two views of information production and use in computer-related research based on citation analysis of publications on the Web using autonomous citation indexing and a parallel citation analysis of traditional journal literature. (Author/LRW)

  6. Scientific citations favor positive results : a systematic review and meta-analysis

    NARCIS (Netherlands)

    Duyx, Bram; Urlings, Miriam J.E.; Swaen, Gerard M.H.; Bouter, Lex M.; Zeegers, Maurice P.

    2017-01-01

    Objectives Citation bias concerns the selective citation of scientific articles based on their results. We brought together all available evidence on citation bias across scientific disciplines and quantified its impact. Study Design and Setting An extensive search strategy was applied to the Web of

  7. A Co-Citation Network of Young Children's Learning with Technology

    Science.gov (United States)

    Tang, Kai-Yu; Li, Ming-Chaun; Hsin, Ching-Ting; Tsai, Chin-Chung

    2016-01-01

    This paper used a novel literature review approach--co-citation network analysis--to illuminate the latent structure of 87 empirical papers in the field of young children's learning with technology (YCLT). Based on the document co-citation analysis, a total of 206 co-citation relationships among the 87 papers were identified and then graphically…

  8. Hot Topics and Popular Papers in Evolutionary Psychology: Analyses of Title Words and Citation Counts in Evolution and Human Behavior, 1979 – 2008

    Directory of Open Access Journals (Sweden)

    Gregory D. Webster

    2009-07-01

    Full Text Available What do evolutionary psychologists study, which are their most highly cited articles, and which variables predict high citation counts? These are important questions for any emerging science. To help answer these questions, we present new empirical research on publication trends in evolutionary psychology's flagship journal, Evolution and Human Behavior (and its predecessor, Ethology and Sociobiology, from its inception in 1979 to 2008. First, analyses of 8,631 title words published in these journals between 1979 and 2008 (808 articles show an increasing interest in researching sex, sex differences, faces, and attractiveness. For example, during the Ethology and Sociobiology era (1979–1996, the most frequent title words were “evolutionary,” “human,” “behavior,” “reproductive,” “evolution,” “selection,” and “altruism,” whereas during the Evolution and Human Behavior era (1997–2008, they were “sex,” “attractiveness,” “differences,” “sexual,” “human,” “male,” and “facial.” Second, we reveal the 20 most-cited articles in these journals, which show the importance of research teams. Third, citation analyses for these journals between 1979 and 2002 (562 articles suggest articles that cite more references are in turn cited more themselves (r = .44, R2 = .19. Lastly, we summarize recent research that suggests evolutionary psychology is not only surviving, but also thriving, as a new interdisciplinary science.

  9. PENGELOLAAN SANGGAR KEGIATAN BELAJAR (SKB) PADA ERA OTONOMI DAERAH

    OpenAIRE

    Widodo Widodo

    2015-01-01

    This study aimed to describe the management implementation of Learning Activities Gallery (LAG) in the autonomy era. Description of Non-formal Education program management, Human Resources management, and financial management. Its purpose is able to create (1) facilities and able to bridge regions to the center, (2) the emergence of creativity in the construc-tion area, (3) political stability and regional centers, (4) the assurance of business continuity, and (5) open communication. But in f...

  10. PENGELOLAAN SANGGAR KEGIATAN BELAJAR (SKB PADA ERA OTONOMI DAERAH

    Directory of Open Access Journals (Sweden)

    Widodo Widodo

    2015-03-01

    Full Text Available This study aimed to describe the management implementation of Learning Activities Gallery (LAG in the autonomy era. Description of Non-formal Education program management, Human Resources management, and financial management. Its purpose is able to create (1 facilities and able to bridge regions to the center, (2 the emergence of creativity in the construc-tion area, (3 political stability and regional centers, (4 the assurance of business continuity, and (5 open communication. But in fact the management of LAG was facing problems regarding the amount of funding that was not sufficient, human resources was not professional, and the prog-ram did not develop. Research used qualitative case studies approach of various problems in some LAG. Then dialogic analyzed by Milles and Huberman included; data collection, data reduc-tion, data display and conclusions. The study found that LAG management in the autonomy era, there was already successful and the support of the local government, but most of the LAG was not growing even threatened dissolved or merged. LAG institutional management were not well developed caused by the lack of professional Human Resources, the lack of funding support. So from some of these problems were concluded that LAG management in the era of regional auto-nomy had a tendency to decrease or even unprofessional. Regional autonomy must consider LAG as a unit organizer non-formal and informal education programs with the full support of the government both funds and human resources professionals.

  11. Citation analysis: A social and dynamic approach to knowledge organization

    DEFF Research Database (Denmark)

    Hjørland, Birger

    2013-01-01

    Knowledge organization (KO) and bibliometrics have traditionally been seen as separate subfields of library and information science, but bibliometric techniques make it possible to identify candidate terms for thesauri and to organize knowledge by relating scientific papers and authors to each...... be considered superior for all purposes. The main difference between traditional knowledge organization systems (KOSs) and maps based on citation analysis is that the first group represents intellectual KOSs, whereas the second represents social KOSs. For this reason bibliometric maps cannot be expected ever...... a distinct approach to KO which is characterized by its social, historical and dynamic nature, its close dependence on scholarly literature and its explicit kind of literary warrant. The two main methods, co-citation analysis and bibliographic coupling represent different things and thus neither can...

  12. Citation bias of hepato-biliary randomized clinical trials

    DEFF Research Database (Denmark)

    Kjaergard, Lise L; Gluud, Christian

    2002-01-01

    The objective of this study was to assess whether trials with a positive (i.e., statistically significant) outcome are cited more often than negative trials. We reviewed 530 randomized clinical trials on hepato-biliary diseases published in 11 English-language journals indexed in MEDLINE from 1985......-1996. From each trial, we extracted the statistical significance of the primary study outcome (positive or negative), the disease area, and methodological quality (randomization and double blinding). The number of citations during two calendar years after publication was obtained from Science Citation Index...... that positive trials are cited significantly more often than negative trials. The association was not explained by disease area or methodological quality....

  13. Inheritance Patterns in Citation Networks Reveal Scientific Memes

    Directory of Open Access Journals (Sweden)

    Tobias Kuhn

    2014-11-01

    Full Text Available Memes are the cultural equivalent of genes that spread across human culture by means of imitation. What makes a meme and what distinguishes it from other forms of information, however, is still poorly understood. Our analysis of memes in the scientific literature reveals that they are governed by a surprisingly simple relationship between frequency of occurrence and the degree to which they propagate along the citation graph. We propose a simple formalization of this pattern and validate it with data from close to 50 million publication records from the Web of Science, PubMed Central, and the American Physical Society. Evaluations relying on human annotators, citation network randomizations, and comparisons with several alternative approaches confirm that our formula is accurate and effective, without a dependence on linguistic or ontological knowledge and without the application of arbitrary thresholds or filters.

  14. Inheritance Patterns in Citation Networks Reveal Scientific Memes

    Science.gov (United States)

    Kuhn, Tobias; Perc, Matjaž; Helbing, Dirk

    2014-10-01

    Memes are the cultural equivalent of genes that spread across human culture by means of imitation. What makes a meme and what distinguishes it from other forms of information, however, is still poorly understood. Our analysis of memes in the scientific literature reveals that they are governed by a surprisingly simple relationship between frequency of occurrence and the degree to which they propagate along the citation graph. We propose a simple formalization of this pattern and validate it with data from close to 50 million publication records from the Web of Science, PubMed Central, and the American Physical Society. Evaluations relying on human annotators, citation network randomizations, and comparisons with several alternative approaches confirm that our formula is accurate and effective, without a dependence on linguistic or ontological knowledge and without the application of arbitrary thresholds or filters.

  15. The importance of proper citation of references in biomedical articles.

    Science.gov (United States)

    Masic, Izet

    2013-01-01

    In scientific circles, the reference is the information that is necessary to the reader in identifying and finding used sources. The basic rule when listing the sources used is that references must be accurate, complete and should be consistently applied. On the other hand, quoting implies verbatim written or verbal repetition of parts of the text or words written by others that can be checked in original. Authors of every new scientific article need to explain how their study or research fits with previous one in the same or similar fields. A typical article in the health sciences refers to approximately 20-30 other articles published in peer reviewed journals, cite once or hundreds times. Citations typically appear in two formats: a) as in-text citations where the sources of information are briefly identified in the text; or b) in the reference list at the end of the publication (book chapter, manuscript, article, etc.) that provides full bibliographic information for each source. Group of publishers met in Vancouver in 1978 and decided to prescribe uniform technical propositions for publication. Adopted in the 1979 by the National Library of Medicine in Bethesda, then the International Committee of Medical Journals Editors (ICMJE), whose review in 1982 entered the official application by 300 international biomedical journals. Authors writing articles for publication in biomedical publications used predominantly citation styles: Vancouver style, Harward style, PubMed style, ICMJE, APA, etc. The paper gives examples of all of these styles of citation to the authors in order to facilitate their applications. Also in this paper is given the review about the problem of plagiarism which becomes more common in the writing of scientific and technical articles in biomedicine.

  16. Statistical regularities in the rank-citation profile of scientists

    OpenAIRE

    Petersen, Alexander M.; Stanley, H. Eugene; Succi, Sauro

    2011-01-01

    Recent "science of science" research shows that scientific impact measures for journals and individual articles have quantifiable regularities across both time and discipline. However, little is known about the scientific impact distribution at the scale of an individual scientist. We analyze the aggregate scientific production and impact of individual careers using the rank-citation profile c_{i}(r) of 200 distinguished professors and 100 assistant professors. For the entire range of paper r...

  17. Feature engineering for MEDLINE citation categorization with MeSH.

    Science.gov (United States)

    Jimeno Yepes, Antonio Jose; Plaza, Laura; Carrillo-de-Albornoz, Jorge; Mork, James G; Aronson, Alan R

    2015-04-08

    Research in biomedical text categorization has mostly used the bag-of-words representation. Other more sophisticated representations of text based on syntactic, semantic and argumentative properties have been less studied. In this paper, we evaluate the impact of different text representations of biomedical texts as features for reproducing the MeSH annotations of some of the most frequent MeSH headings. In addition to unigrams and bigrams, these features include noun phrases, citation meta-data, citation structure, and semantic annotation of the citations. Traditional features like unigrams and bigrams exhibit strong performance compared to other feature sets. Little or no improvement is obtained when using meta-data or citation structure. Noun phrases are too sparse and thus have lower performance compared to more traditional features. Conceptual annotation of the texts by MetaMap shows similar performance compared to unigrams, but adding concepts from the UMLS taxonomy does not improve the performance of using only mapped concepts. The combination of all the features performs largely better than any individual feature set considered. In addition, this combination improves the performance of a state-of-the-art MeSH indexer. Concerning the machine learning algorithms, we find that those that are more resilient to class imbalance largely obtain better performance. We conclude that even though traditional features such as unigrams and bigrams have strong performance compared to other features, it is possible to combine them to effectively improve the performance of the bag-of-words representation. We have also found that the combination of the learning algorithm and feature sets has an influence in the overall performance of the system. Moreover, using learning algorithms resilient to class imbalance largely improves performance. However, when using a large set of features, consideration needs to be taken with algorithms due to the risk of over-fitting. Specific

  18. Robustness and discriminatory strength of citation-based journal indicators

    DEFF Research Database (Denmark)

    Andersen, Jens Peter; Christensen, Anette Luther

    subject categories. As this is a work in progress, subject and indicator selection is not yet complete, nor is data acquisition. RESULTS: Examplar data may be seen in figure 1, displaying the robustness of the journal impact factor for describing citations. REFERENCES: Lehmann, S., Jackson, A.D., Lautrup......, B. (2006). Measures for Measures. Nature, 444:1003-1006Figure: Robustness of the journal impact factor....

  19. The Importance of Proper Citation of References in Biomedical Articles

    Science.gov (United States)

    Masic, Izet

    2013-01-01

    In scientific circles, the reference is the information that is necessary to the reader in identifying and finding used sources. The basic rule when listing the sources used is that references must be accurate, complete and should be consistently applied. On the other hand, quoting implies verbatim written or verbal repetition of parts of the text or words written by others that can be checked in original. Authors of every new scientific article need to explain how their study or research fits with previous one in the same or similar fields. A typical article in the health sciences refers to approximately 20-30 other articles published in peer reviewed journals, cite once or hundreds times. Citations typically appear in two formats: a) as in-text citations where the sources of information are briefly identified in the text; or b) in the reference list at the end of the publication (book chapter, manuscript, article, etc.) that provides full bibliographic information for each source. Group of publishers met in Vancouver in 1978 and decided to prescribe uniform technical propositions for publication. Adopted in the 1979 by the National Library of Medicine in Bethesda, then the International Committee of Medical Journals Editors (ICMJE), whose review in 1982 entered the official application by 300 international biomedical journals. Authors writing articles for publication in biomedical publications used predominantly citation styles: Vancouver style, Harward style, PubMed style, ICMJE, APA, etc. The paper gives examples of all of these styles of citation to the authors in order to facilitate their applications. Also in this paper is given the review about the problem of plagiarism which becomes more common in the writing of scientific and technical articles in biomedicine. PMID:24167381

  20. Inheritance patterns in citation networks reveal scientific memes

    OpenAIRE

    Tobias Kuhn; Matjaž Perc; Dirk Helbing

    2014-01-01

    Memes are the cultural equivalent of genes that spread across human culture by means of imitation. What makes a meme and what distinguishes it from other forms of information, however, is still poorly understood. Our analysis of memes in the scientific literature reveals that they are governed by a surprisingly simple relationship between frequency of occurrence and the degree to which they propagate along the citation graph. We propose a simple formalization of this pattern and we validate i...

  1. Does Self-Citation Influence Quantitative Measures of Research Productivity Among Academic Oral and Maxillofacial Surgeons?

    Science.gov (United States)

    Susarla, Srinivas M; Swanson, Edward W; Lopez, Joseph; Peacock, Zachary S; Dodson, Thomas B

    2015-10-01

    Quantitative measures of research productivity depend on the citation frequency of a publication. Citation-based metrics, such as the h-index (total number of publications h that have at least h citations), can be susceptible to self-citation, resulting in an inflated measure of research productivity. The purpose of the present study was to estimate the effect of self-citation on the h-index among academic oral and maxillofacial surgeons (OMSs). The present study was a cross-sectional study of full-time academic OMSs in the United States. The predictor variable was the frequency of self-citation. The primary outcome of interest was the h-index. Other study variables included demographic factors and citation metrics. Descriptive, bivariate, and regression statistics were computed. The study sample consisted of 325 full-time academic OMSs. Most surgeons were men (88.3%); approximately 40% had medical degrees. The study subjects had an average of 23.5 ± 37.1 publications. The mean number of self-citations was 15 + 56. The sample's mean h-index was 6.6 ± 7.6 and was associated with self-citation (r = 0.71, P citations. After adjusting for PhD degree, total number of publications, and academic rank, an increasing self-citation rate influenced the h-index (r = 0.006, P citations were more likely to have their h-index influenced by self-citation. Self-citation among full-time academic OMSs does not substantially affect the h-index. Surgeons in the top quartile of self-citation rates are more likely to influence their h-index. Copyright © 2015 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  2. A semi-supervised approach using label propagation to support citation screening.

    Science.gov (United States)

    Kontonatsios, Georgios; Brockmeier, Austin J; Przybyła, Piotr; McNaught, John; Mu, Tingting; Goulermas, John Y; Ananiadou, Sophia

    2017-08-01

    Citation screening, an integral process within systematic reviews that identifies citations relevant to the underlying research question, is a time-consuming and resource-intensive task. During the screening task, analysts manually assign a label to each citation, to designate whether a citation is eligible for inclusion in the review. Recently, several studies have explored the use of active learning in text classification to reduce the human workload involved in the screening task. However, existing approaches require a significant amount of manually labelled citations for the text classification to achieve a robust performance. In this paper, we propose a semi-supervised method that identifies relevant citations as early as possible in the screening process by exploiting the pairwise similarities between labelled and unlabelled citations to improve the classification performance without additional manual labelling effort. Our approach is based on the hypothesis that similar citations share the same label (e.g., if one citation should be included, then other similar citations should be included also). To calculate the similarity between labelled and unlabelled citations we investigate two different feature spaces, namely a bag-of-words and a spectral embedding based on the bag-of-words. The semi-supervised method propagates the classification codes of manually labelled citations to neighbouring unlabelled citations in the feature space. The automatically labelled citations are combined with the manually labelled citations to form an augmented training set. For evaluation purposes, we apply our method to reviews from clinical and public health. The results show that our semi-supervised method with label propagation achieves statistically significant improvements over two state-of-the-art active learning approaches across both clinical and public health reviews. Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.

  3. Potentially coercive self-citation by peer reviewers: a cross-sectional study.

    Science.gov (United States)

    Thombs, Brett D; Levis, Alexander W; Razykov, Ilya; Syamchandra, Achyuth; Leentjens, Albert F G; Levenson, James L; Lumley, Mark A

    2015-01-01

    Peer reviewers sometimes request that authors cite their work, either appropriately or via coercive self-citation to highlight the reviewers' work. The objective of this study was to determine in peer reviews submitted to one biomedical journal (1) the extent of peer reviewer self-citation; (2) the proportion of reviews recommending revision or acceptance versus rejection that included reviewer self-citations; and (3) the proportion of reviewer self-citations versus citations to others that included a rationale. Peer reviews for manuscripts submitted in 2012 to the Journal of Psychosomatic Research were evaluated. Data extraction was performed independently by two investigators. There were 616 peer reviews (526 reviewers; 276 manuscripts), of which 444 recommended revision or acceptance and 172 rejection. Of 428 total citations, there were 122 peer reviewer self-citations (29%) and 306 citations to others' work (71%). Self-citations were more common in reviews recommending revision or acceptance (105 of 316 citations; 33%) versus rejection (17/112; 15%; pcitations with no rationale (26 of 122; 21%) was higher than for citations to others' work (15 of 306; 5%; pcitation in peer reviews is common and may reflect a combination of appropriate citation to research that should be cited in published articles and inappropriate citation intended to highlight the work of the peer reviewer. Providing instructions to peer reviewers about self-citation and asking them to indicate when and why they have self-cited may help to limit self-citation to appropriate, constructive recommendations. Copyright © 2014 Elsevier Inc. All rights reserved.

  4. Co-authorship of Iranian Researchers in Science, Social Science, Art and Humanities Citation Indexes in the Web of Science between 2000 and 2006

    Directory of Open Access Journals (Sweden)

    Farideh Osareh

    2010-09-01

    Full Text Available The present study determines the co-authorship factor in the Iranian scientific output between 2000 and 2006 as reflected in the science, social science art and humanities citation indexes made available through the Web of Science database. Webometric indicators were used. The data were extracted in plain text from WOS, analyzed using HistCite software and counted in MS Office Excel program. Of the Total of 25320 documents indexed, 24480 documents were in Science Citation Index, 783 in Social Citation Index and 57 in Art and Humanities index. The findings indicated that co-authorship factor in the period studied had been on the rise. The highest participation rate belonged to the documents with two or three authors. General coauthorship factor was 0.59. The year 2006 had the highest coauthorship factor (0.62 while the year 2000 had the least (0.55. Bradford and Lotka laws were applied to the data sets. The Lotka’s Law only held true for the science citation index. The Bradford’s Law, however, held true for all indexes. In all citation indexes, the United States with 1865 documents (7.38 had the highest degree of coauthorship in Iranian scientific output.

  5. Road rage: relationships with borderline personality and driving citations.

    Science.gov (United States)

    Sansone, Randy A; Lam, Charlene; Wiederman, Michael W

    2010-01-01

    The objectives of this study were to determine: (1) the prevalence of self-reported road rage in a primary care sample; (2) the relationship, if any, between road rage and borderline personality disorder (BPD); and (3) whether those with road rage have a greater prevalence of different types of driving citations compared to those without road rage. Using a consecutive, cross-sectional sample of primary care outpatients, we surveyed 419 individuals. The prevalence of self-reported road rage in this sample was 35.3%. BPD was significantly more prevalent among participants with road rage (24.8% vs. 9.8%). Compared to those without road rage, those with road rage reported statistically significantly higher numbers of different types of driving citations, including moving and non-moving violations, as well as having had a driver's license suspended. There were no differences between the groups with regard to vehicular crashes or driving while intoxicated. About one-third of individuals reported road rage. The prevalence of BPD was significantly higher among those with road rage compared to those without road rage, and is likely to be one of the contributory variables to reckless driving. Individuals who reported road rage appear to be less disciplined drivers and are subject to more types of driving citations, although they do not report greater rates of vehicular crashes or driving while intoxicated.

  6. Citations to articles citing Benford's law: a Benford analysis

    CERN Document Server

    Mir, Tariq Ahmad

    2016-01-01

    The observation that in large data the occurrence of first significant digits of numbers is often governed by a logarithmically decreasing distribution, quite far from the ordinarily expected uniform distribution, is called Benford's law (BL). It was first reported by S. Newcomb and many decades later independently by F. Benford. Due to its counter-intuitiveness the law was ignored for decades as a mere curious observation. However, huge swell in number of publications which the law has seen lately is an indication of its remarkable resurgence. The law has come a long way, from obscurity to now being a regular subject of books, peer reviewed papers, patents, blogs and news. Here, we use Google Scholar (GS) to collect the data on the number of citations received by the articles citing the original papers of Newcomb and Benford, and then investigate whether the leading digits of this citations data are distributed according to the law they discovered. We find that the monthly citations data of the articles citi...

  7. Tarbijalepingud rahvusvahelises eraõiguses / Margus Kingisepp

    Index Scriptorium Estoniae

    Kingisepp, Margus, 1969-

    1997-01-01

    Tarbijalepingute reguleerimisest erinevates riikides, 1955. a. Haagi konventsioonist ja 1980. a. Rooma konventsioonist, rahvusvahelisest jurisdiktsioonist tarbijalepingute puhul ning rahvusvahelise eraõiguse sätetest Eesti õiguses

  8. Research citation analysis of nursing academics in Canada: identifying success indicators.

    Science.gov (United States)

    Hack, Thomas F; Crooks, Dauna; Plohman, James; Kepron, Emma

    2010-11-01

    This article is a report of a citation analysis of research publications by Canadian nursing academics. Citation analysis can yield objective criteria for assessing the value of published research and is becoming increasingly popular as an academic evaluation tool in universities around the world. Citation analysis is useful for examining the research performance of academic researchers and identifying leaders among them. The journal publication records of 737 nursing academics at 33 Canadian universities and schools of nursing were subject to citation analysis using the Scopus database. Three primary types of analysis were performed for each individual: number of citations for each journal publication, summative citation count of all published papers and the Scopus h-index. Preliminary citation analysis was conducted from June to July 2009, with the final analysis performed on 2 October 2009 following e-mail verification of publication lists. The top 20 nursing academics for each of five citation categories are presented: the number of career citations for all publications, number of career citations for first-authored publications, most highly cited first-authored publications, the Scopus h-index for all publications and the Scopus h-index for first-authored publications. Citation analysis metrics are useful for evaluating the research performance of academic researchers in nursing. Institutions are encouraged to protect the research time of successful and promising nursing academics, and to dedicate funds to enhance the research programmes of underperforming academic nursing groups. © 2010 The Authors. Journal of Advanced Nursing © 2010 Blackwell Publishing Ltd.

  9. [The impact factor and citation frequency of Chinese Journal of Ophthalmology from 2000 to 2009].

    Science.gov (United States)

    Wu, Kun-fang; Wen, Feng

    2011-08-01

    From the point of impact factor and citation to evaluate the academic level and influence of Chinese Journal of Ophthalmology (CJO). Using the impact factor (IF) data provided by China Science and Technology Journal Citation Reports (CJCR), and the information of Chinese Medical citation Index (CMCI/CMCC integrated version), the citations from CJO were collected and analyzed with bibliometric methods. From 2000 to 2008, the IF of CJO were 0.573, 0.863, 0.702, 0.745, 0.877, 1.031, 0.807, 0.875 and 0.533. From 2000 to 2009, 2485 papers were published in CJO, 1562 of them were referenced (9294 times). The frequency of total citation rate was 62.86%. The region with the highest citation frequency was Guangdong (2661 times), followed by Beijing (2200 times), Shandong (926 times) and Shanghai (901 times). As to the institution, the top of rank was Zhongshan Ophthalmic Center of Sun Yat-Sen University (with 277 papers, 201 citations and 2193 times of citation frequency) and Beijing Tongren Eye Center (with 197 papers, 106 citations and 507 times of citation frequency). The IF of CJO was stable, and ranked first in domestic academic of Ophthalmology. Meanwhile, it had a higher frequency of Citation, which shows that CJO has high quality and strong influence, and become one of main core ophthalmology journals in China.

  10. Fame and obsolescence: Disentangling growth and aging dynamics of patent citations

    Science.gov (United States)

    Higham, K. W.; Governale, M.; Jaffe, A. B.; Zülicke, U.

    2017-04-01

    We present an analysis of citations accrued over time by patents granted by the United States Patent and Trademark Office in 1998. In contrast to previous studies, a disaggregation by technology category is performed, and exogenously caused citation-number growth is controlled for. Our approach reveals an intrinsic citation rate that clearly separates into an—in the long run, exponentially time-dependent—aging function and a completely time-independent preferential-attachment-type growth kernel. For the general case of such a separable citation rate, we obtain the time-dependent citation distribution analytically in a form that is valid for any functional form of its aging and growth parts. Good agreement between theory and long-time characteristics of patent-citation data establishes our work as a useful framework for addressing still open questions about knowledge-propagation dynamics, such as the observed excess of citations at short times.

  11. Stochastic dynamical model of a growing citation network based on a self-exciting point process.

    Science.gov (United States)

    Golosovsky, Michael; Solomon, Sorin

    2012-08-31

    We put under experimental scrutiny the preferential attachment model that is commonly accepted as a generating mechanism of the scale-free complex networks. To this end we chose a citation network of physics papers and traced the citation history of 40,195 papers published in one year. Contrary to common belief, we find that the citation dynamics of the individual papers follows the superlinear preferential attachment, with the exponent α=1.25-1.3. Moreover, we show that the citation process cannot be described as a memoryless Markov chain since there is a substantial correlation between the present and recent citation rates of a paper. Based on our findings we construct a stochastic growth model of the citation network, perform numerical simulations based on this model and achieve an excellent agreement with the measured citation distributions.

  12. From Excessive Journal Self-Cites to Citation Stacking: Analysis of Journal Self-Citation Kinetics in Search for Journals, Which Boost Their Scientometric Indicators.

    Science.gov (United States)

    Heneberg, Petr

    2016-01-01

    Bibliometric indicators increasingly affect careers, funding, and reputation of individuals, their institutions and journals themselves. In contrast to author self-citations, little is known about kinetics of journal self-citations. Here we hypothesized that they may show a generalizable pattern within particular research fields or across multiple fields. We thus analyzed self-cites to 60 journals from three research fields (multidisciplinary sciences, parasitology, and information science). We also hypothesized that the kinetics of journal self-citations and citations received from other journals of the same publisher may differ from foreign citations. We analyzed the journals published the American Association for the Advancement of Science, Nature Publishing Group, and Editura Academiei Române. We found that although the kinetics of journal self-cites is generally faster compared to foreign cites, it shows some field-specific characteristics. Particularly in information science journals, the initial increase in a share of journal self-citations during post-publication year 0 was completely absent. Self-promoting journal self-citations of top-tier journals have rather indirect but negligible direct effects on bibliometric indicators, affecting just the immediacy index and marginally increasing the impact factor itself as long as the affected journals are well established in their fields. In contrast, other forms of journal self-citations and citation stacking may severely affect the impact factor, or other citation-based indices. We identified here a network consisting of three Romanian physics journals Proceedings of the Romanian Academy, Series A, Romanian Journal of Physics, and Romanian Reports in Physics, which displayed low to moderate ratio of journal self-citations, but which multiplied recently their impact factors, and were mutually responsible for 55.9%, 64.7% and 63.3% of citations within the impact factor calculation window to the three journals

  13. From Excessive Journal Self-Cites to Citation Stacking: Analysis of Journal Self-Citation Kinetics in Search for Journals, Which Boost Their Scientometric Indicators

    Science.gov (United States)

    2016-01-01

    Bibliometric indicators increasingly affect careers, funding, and reputation of individuals, their institutions and journals themselves. In contrast to author self-citations, little is known about kinetics of journal self-citations. Here we hypothesized that they may show a generalizable pattern within particular research fields or across multiple fields. We thus analyzed self-cites to 60 journals from three research fields (multidisciplinary sciences, parasitology, and information science). We also hypothesized that the kinetics of journal self-citations and citations received from other journals of the same publisher may differ from foreign citations. We analyzed the journals published the American Association for the Advancement of Science, Nature Publishing Group, and Editura Academiei Române. We found that although the kinetics of journal self-cites is generally faster compared to foreign cites, it shows some field-specific characteristics. Particularly in information science journals, the initial increase in a share of journal self-citations during post-publication year 0 was completely absent. Self-promoting journal self-citations of top-tier journals have rather indirect but negligible direct effects on bibliometric indicators, affecting just the immediacy index and marginally increasing the impact factor itself as long as the affected journals are well established in their fields. In contrast, other forms of journal self-citations and citation stacking may severely affect the impact factor, or other citation-based indices. We identified here a network consisting of three Romanian physics journals Proceedings of the Romanian Academy, Series A, Romanian Journal of Physics, and Romanian Reports in Physics, which displayed low to moderate ratio of journal self-citations, but which multiplied recently their impact factors, and were mutually responsible for 55.9%, 64.7% and 63.3% of citations within the impact factor calculation window to the three journals

  14. The Oligopoly of Academic Publishers in the Digital Era.

    Directory of Open Access Journals (Sweden)

    Vincent Larivière

    Full Text Available The consolidation of the scientific publishing industry has been the topic of much debate within and outside the scientific community, especially in relation to major publishers' high profit margins. However, the share of scientific output published in the journals of these major publishers, as well as its evolution over time and across various disciplines, has not yet been analyzed. This paper provides such analysis, based on 45 million documents indexed in the Web of Science over the period 1973-2013. It shows that in both natural and medical sciences (NMS and social sciences and humanities (SSH, Reed-Elsevier, Wiley-Blackwell, Springer, and Taylor & Francis increased their share of the published output, especially since the advent of the digital era (mid-1990s. Combined, the top five most prolific publishers account for more than 50% of all papers published in 2013. Disciplines of the social sciences have the highest level of concentration (70% of papers from the top five publishers, while the humanities have remained relatively independent (20% from top five publishers. NMS disciplines are in between, mainly because of the strength of their scientific societies, such as the ACS in chemistry or APS in physics. The paper also examines the migration of journals between small and big publishing houses and explores the effect of publisher change on citation impact. It concludes with a discussion on the economics of scholarly publishing.

  15. The Oligopoly of Academic Publishers in the Digital Era.

    Science.gov (United States)

    Larivière, Vincent; Haustein, Stefanie; Mongeon, Philippe

    2015-01-01

    The consolidation of the scientific publishing industry has been the topic of much debate within and outside the scientific community, especially in relation to major publishers' high profit margins. However, the share of scientific output published in the journals of these major publishers, as well as its evolution over time and across various disciplines, has not yet been analyzed. This paper provides such analysis, based on 45 million documents indexed in the Web of Science over the period 1973-2013. It shows that in both natural and medical sciences (NMS) and social sciences and humanities (SSH), Reed-Elsevier, Wiley-Blackwell, Springer, and Taylor & Francis increased their share of the published output, especially since the advent of the digital era (mid-1990s). Combined, the top five most prolific publishers account for more than 50% of all papers published in 2013. Disciplines of the social sciences have the highest level of concentration (70% of papers from the top five publishers), while the humanities have remained relatively independent (20% from top five publishers). NMS disciplines are in between, mainly because of the strength of their scientific societies, such as the ACS in chemistry or APS in physics. The paper also examines the migration of journals between small and big publishing houses and explores the effect of publisher change on citation impact. It concludes with a discussion on the economics of scholarly publishing.

  16. Impact factor of Korean Journal of Pediatrics on Korean Medical Citation Index and Science Citation Index of Web of Science.

    Science.gov (United States)

    Bae, Chong Woo; Choi, Sun Hee; Han, Man Yong; Rha, Yeong Ho; Lee, Young Jin

    2011-04-01

    The total number of times a paper is cited, also known as the impact factor (IF) of a medical journal, is widely implied in evaluating the quality of a research paper. We evaluated the citation index data as an IF of Korean J Pediatr in Korean Medical Citation Index (KoMCI) and JCI of Web of Science. We calculated the IF of Korean J Pediatr at KoMCI supervised by Korean Association of Medical Journal Editors. And we estimated the IF of Korean J Pediatr by the JCI of Web of Science although it was never officially reported. The IF of Korean J Pediatr on KoMCI has increased from 0.100 in the year 2000, to 0.205 in 2008, and 0.326 in 2009. Although the IF of Korean J Pediatr was 0.006 in 2005, 0.018 in 2006, 0.028 in 2008, 0.066 in 2009, and 0.018 in 2010 according to the JCI of Web of Science, the number of citations are steadily increasing. Understanding and realizing the current status will be a stepping stone for further improvement. The next objective of the Korean J Pediatr is to become registered in the SCI or SCIE. Increasing the IF according to the JCI of Web of Science is crucial in order to achieve this goal.

  17. A simple index for the high-citation tail of citation distribution to quantify research performance in countries and institutions.

    Directory of Open Access Journals (Sweden)

    Alonso Rodríguez-Navarro

    Full Text Available BACKGROUND: Conventional scientometric predictors of research performance such as the number of papers, citations, and papers in the top 1% of highly cited papers cannot be validated in terms of the number of Nobel Prize achievements across countries and institutions. The purpose of this paper is to find a bibliometric indicator that correlates with the number of Nobel Prize achievements. METHODOLOGY/PRINCIPAL FINDINGS: This study assumes that the high-citation tail of citation distribution holds most of the information about high scientific performance. Here I propose the x-index, which is calculated from the number of national articles in the top 1% and 0.1% of highly cited papers and has a subtractive term to discount highly cited papers that are not scientific breakthroughs. The x-index, the number of Nobel Prize achievements, and the number of national articles in Nature or Science are highly correlated. The high correlations among these independent parameters demonstrate that they are good measures of high scientific performance because scientific excellence is their only common characteristic. However, the x-index has superior features as compared to the other two parameters. Nobel Prize achievements are low frequency events and their number is an imprecise indicator, which in addition is zero in most institutions; the evaluation of research making use of the number of publications in prestigious journals is not advised. CONCLUSION: The x-index is a simple and precise indicator for high research performance.

  18. Bibliometrics of systematic reviews: analysis of citation rates and journal impact factors

    Science.gov (United States)

    2013-01-01

    Background Systematic reviews are important for informing clinical practice and health policy. The aim of this study was to examine the bibliometrics of systematic reviews and to determine the amount of variance in citations predicted by the journal impact factor (JIF) alone and combined with several other characteristics. Methods We conducted a bibliometric analysis of 1,261 systematic reviews published in 2008 and the citations to them in the Scopus database from 2008 to June 2012. Potential predictors of the citation impact of the reviews were examined using descriptive, univariate and multiple regression analysis. Results The mean number of citations per review over four years was 26.5 (SD ±29.9) or 6.6 citations per review per year. The mean JIF of the journals in which the reviews were published was 4.3 (SD ±4.2). We found that 17% of the reviews accounted for 50% of the total citations and 1.6% of the reviews were not cited. The number of authors was correlated with the number of citations (r = 0.215, P reviews published in the top quartile of JIFs (≥ 5.16) received citations in the bottom quartile (eight or fewer), whereas 9% of reviews published in the lowest JIF quartile (≤ 2.06) received citations in the top quartile (34 or more). Six percent of reviews in journals with no JIF were also in the first quartile of citations. Conclusions The JIF predicted over half of the variation in citations to the systematic reviews. However, the distribution of citations was markedly skewed. Some reviews in journals with low JIFs were well-cited and others in higher JIF journals received relatively few citations; hence the JIF did not accurately represent the number of citations to individual systematic reviews. PMID:24028376

  19. Nuclear facility decommissioning and site remedial actions: A selected bibliography, Volume 18. Part 1B: Citations with abstracts, sections 10 through 16

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-09-01

    This bibliography contains 3,638 citations with abstracts of documents relevant to environmental restoration, nuclear facility decontamination and decommissioning (D and D), uranium mill tailings management, and site remedial actions. The bibliography contains scientific, technical, financial, and regulatory information that pertains to DOE environmental restoration programs. The citations are separated by topic into 16 sections, including (1) DOE Environmental Restoration Program; (2) DOE D and D Program; (3) Nuclear Facilities Decommissioning; (4) DOE Formerly Utilized sites Remedial Action Program; (5) NORM-Contaminated Site Restoration; (6) DOE Uranium Mill Tailings Remedial Action Project; (7) Uranium Mill Tailings Management; (8) DOE Site-Wide Remedial Actions; (9) DOE Onsite Remedial Action Projects; (10) Contaminated Site Remedial Actions; (11) DOE Underground Storage Tank Remediation; (12) DOE Technology Development, Demonstration, and Evaluation; (13) Soil Remediation; (14) Groundwater Remediation; (15) Environmental Measurements, Analysis, and Decision-Making; and (16) Environmental Management Issues.

  20. Nuclear facility decommissioning and site remedial actions: A selected bibliography, Volume 18. Part 1A: Citations with abstracts, sections 1 through 9

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-09-01

    This bibliography contains 3,638 citations with abstracts of documents relevant to environmental restoration, nuclear facility decontamination and decommissioning (D and D), uranium mill tailings management, and site remedial actions. The bibliography contains scientific, technical, financial, and regulatory information that pertains to DOE environmental restoration programs. The citations are separated by topic into 16 sections, including (1) DOE Environmental Restoration program; (2) DOE D and D Program; (3) Nuclear Facilities Decommissioning; (4) DOE Formerly Utilized Sites Remedial Action Program; (5) NORM-Contaminated Site Restoration; (6) DOE Uranium Mill Tailings Remedial Action Project; (7) Uranium Mill Tailings Management; (8) DOE Site-Wide Remedial Actions; (9) DOE Onsite Remedial Action Projects; (10) Contaminated Site Remedial Actions; (11) DOE Underground Storage Tank Remediation; (12) DOE Technology Development, Demonstration, and Evaluation; (13) Soil Remediation; (14) Groundwater Remediation; (15) Environmental Measurements, Analysis, and Decision-Making; and (16) Environmental Management Issues.

  1. Edited volumes, monographs and book chapters in the Book Citation Index (BKCI) and Science Citation Index (SCI, SoSCI, A&HCI)

    NARCIS (Netherlands)

    Leydesdorff, L.; Felt, U.

    2012-01-01

    In 2011, Thomson-Reuters introduced the Book Citation Index (BKCI) as part of the Science Citation Index (SCI). The interface of the Web of Science version 5 enables users to search for both 'Books' and 'Book Chapters' as new categories. Books and book chapters, however, were always among the cited

  2. "Books" and "book chapters" in the Book Citation Index (BCI) and Science Citation Index (SCI, SoSCI, A&HCI)

    NARCIS (Netherlands)

    Leydesdorff, L.; Felt, U.; Grove, A.

    2012-01-01

    In 2011, Thomson-Reuters introduced the Book Citation Index (BKCI) as part of the Science Citation Index (SCI). The interface of the Web of Science version 5 enables users to search for both "Books" and "Book Chapters" as new categories. Books and book chapters, however, were always among the cited

  3. Definition and identification of journals as bibliographic and subject entities: Librarianship versus ISI Journal Citation Reports methods and their effect on citation measures

    NARCIS (Netherlands)

    Bensman, S.J.; Leydesdorff, L.

    2009-01-01

    This paper explores the ISI Journal Citation Reports (JCR) bibliographic and subject structures through Library of Congress (LC) and American research libraries cataloging and classification methodology. The 2006 Science Citation Index JCR Behavioral Sciences subject category journals are used as an

  4. [Era of enhanced recovery after surgery and robotic gastric cancer surgery].

    Science.gov (United States)

    Zhou, Yanbing

    2017-05-25

    Enhanced recovery after surgery (ERAS) has been rapidly developing by combining several techniques with evidence-based adjustments, including preoperative education, preoperative carbohydrate loading, epidural or regional anesthesia, early initiation of enteral nutrition, ambulation and multi-modal pain management. The core part of ERAS is to reduce and reverse surgical stress and therefore greatly improve clinical outcome. Under the guidance of ERAS, perioperative management of robotic gastric cancer operation should follow the basic principles of ERAS and clinical pathway to maximize the advantages of the robotic surgery. ERAS protocol is safe and feasible for patients undergoing robotic radical gastrectomy and it can reduce surgical stress, shorten hospital stay, improve quality of life and does not increase complications, whose mechanism may be associated with the reduction of inflammation and insulin resistance, the decrease of resting energy exposure, and the protection of mitochondria function. It is worth emphasizing that it is very important to fully understand the changes of pathophysiology during perioperative period, to strictly implement the ERAS pathway based on optimized evidence-based medicine, to cooperate closely with the multidisciplinary team, to observe and manage the postoperative complications dynamically by systemic classification. The improvement of ERAS program on the outcome of patients should be summarized regularly and the new interventional strategies should be evaluated further according to the international standard.

  5. Psychiatry in the Nazi era.

    Science.gov (United States)

    Seeman, Mary V

    2005-03-01

    To update Canadian psychiatrists on recent information from newly discovered Berlin archives about the actions of physicians, especially psychiatrists, during the era of National Socialism in Germany and to encourage introspection about the role of the medical profession, its relationship with government, and its vulnerability to manipulation by ideology and economic pressures. This is a selective review of the literature on the collaboration of physicians, especially psychiatrists, in the sterilization, experimentation, and annihilation of patients with mental illness before and during World War II. Directed to value the health of the nation over the care of individual patients and convinced that a hierarchy of worth distinguished one person from another, German psychiatrists were enlisted to commit atrocities during the Nazi period. The values of care and compassion can be eroded; this knowledge demands constant vigilance.

  6. A comparative study of first and all-author co-citation counting, and two different matrix generation approaches applied for author co-citation analyses

    DEFF Research Database (Denmark)

    Schneider, Jesper Wiborg; Larsen, Birger; Ingwersen, Peter

    2009-01-01

    Aim: The present article contributes to the current methodological debate concerning author co-citation analyses. (ACA) The study compares two different units of analyses, i.e. first- versus inclusive all-author co-citation counting, as well as two different matrix generation approaches, i.......e. a conventional multivariate and the so-called Drexel approach, in order to investigate their influence upon mapping results. The aim of the present study is therefore to provide more methodological awareness and empirical evidence concerning author co-citation studies. Method: The study is based on structured...... XML documents extracted from the IEEE collection. These data allow the construction of ad-hoc citation indexes, which enables us to carry out the hitherto largest all-author co-citation study. Four ACA are made, combining the different units of analyses with the different matrix generation approaches...

  7. S-Net: High-level coordination for the many-core era

    NARCIS (Netherlands)

    Grelck, C.; Scholz, S.-B.; Shafarenko, A.

    2010-01-01

    S-Net is a coordination language that aims at reconciling the legacy world of sequential software and programming techniques with the hardware reality in the many-core era. This is achieved through a near-complete separation of conventional application programming from concurrency-related concerns.

  8. Identifying Scientific Project-generated Data Citation from Full-text Articles: An Investigation of TCGA Data Citation

    Directory of Open Access Journals (Sweden)

    Jiao Li

    2016-06-01

    Full Text Available Purpose: In the open science era, it is typical to share project-generated scientific data by depositing it in an open and accessible database. Moreover, scientific publications are preserved in a digital library archive. It is challenging to identify the data usage that is mentioned in literature and associate it with its source. Here, we investigated the data usage of a government-funded cancer genomics project, The Cancer Genome Atlas (TCGA, via a full-text literature analysis. Design/methodology/approach: We focused on identifying articles using the TCGA dataset and constructing linkages between the articles and the specific TCGA dataset. First, we collected 5,372 TCGA-related articles from PubMed Central (PMC. Second, we constructed a benchmark set with 25 full-text articles that truly used the TCGA data in their studies, and we summarized the key features of the benchmark set. Third, the key features were applied to the remaining PMC full-text articles that were collected from PMC. Findings: The amount of publications that use TCGA data has increased significantly since 2011, although the TCGA project was launched in 2005. Additionally, we found that the critical areas of focus in the studies that use the TCGA data were glioblastoma multiforme, lung cancer, and breast cancer; meanwhile, data from the RNA-sequencing (RNA-seq platform is the most preferable for use. Research limitations: The current workflow to identify articles that truly used TCGA data is labor-intensive. An automatic method is expected to improve the performance. Practical implications: This study will help cancer genomics researchers determine the latest advancements in cancer molecular therapy, and it will promote data sharing and data-intensive scientific discovery. Originality/value: Few studies have been conducted to investigate data usage by government-funded projects/programs since their launch. In this preliminary study, we extracted articles that use TCGA data

  9. Author Self-Citation in the Otolaryngology Literature: A Pilot Study.

    Science.gov (United States)

    Tolisano, Anthony M; Song, Sungjin A; Cable, Benjamin B

    2016-02-01

    To determine the prevalence of author self-citation in the field of otolaryngology. A retrospective review of bibliographic references in 5 otolaryngology journals. Five high-impact otolaryngology journals were reviewed over a 3-month period between January and March 2014 to identify the pattern of author self-citations. Data included study type, otolaryngology topic, authorship, total citations, author self-citations, and country of origin. Nearly two-thirds of articles contained at least 1 self-citation, with an average of 2.6 self-citations per article. Self-citations represented nearly 10% of total citations. Articles with at least 1 self-citation had more authors (5.8 vs 4.9, P otolaryngology literature is common and compares similarly to other medical specialties previously studied. Self-citation should not be considered inappropriate, as it is often done to expand on earlier research. Nevertheless, editors, researchers, and readers should be aware of this increasingly recognized phenomenon and its associated potential implications to the process of scientific inquiry. © American Academy of Otolaryngology—Head and Neck Surgery Foundation 2015.

  10. Citation analysis of Canadian psycho-oncology and supportive care researchers.

    Science.gov (United States)

    Hack, Thomas F; Crooks, Dauna; Plohman, James; Kepron, Emma

    2014-02-01

    The purpose of this study was to conduct a historical review of psycho-oncology and supportive care research in Canada using citation analysis and to review the clinical impact of the research conducted by the most highly cited researchers. The lifetime journal publication records of 109 psycho-oncology and supportive care researchers in Canada were subject to citation analysis using the Scopus database, based on citations since 1996 of articles deemed relevant to psychosocial oncology and supportive care, excluding self-citations. Three primary types of analysis were performed for each individual: the number of citations for each journal publication, a summative citation count of all published articles, and the Scopus h-index. The top 20 psycho-oncology/supportive care researchers for each of five citation categories are presented: the number of citations for all publications; the number of citations for first-authored publications; the most highly cited first-authored publications; the Scopus h-index for all publications; and the Scopus h-index for first-authored publications. The three most highly cited Canadian psycho-oncology researchers are Dr. Kerry Courneya (University of Alberta), Dr. Lesley Degner, (University of Manitoba), and Dr. Harvey Chochinov (University of Manitoba). Citation analysis is useful for examining the research performance of psycho-oncology and supportive care researchers and identifying leaders among them.

  11. Self-citation of Medical and Non-medical Universities in Northern Iran.

    Science.gov (United States)

    Jahani, Mohammad Ali; Yaminfirooz, Mousa

    2016-12-01

    Self-citation is one of the main challenges in the evaluation of researchers' scientific output. This study aimed at comparing the institutional self-citation among the universities located in Northern Iran. This study was conducted as a scientometric study. Research population included all scientific productions of 16 Northern Iran Universities with at least 100 indexed documents indexed in the Web of Science (WoS) by 2 June 2015. The citation analysis section of WoS was used for data collection. SPSS was applied for data analysis. Study hypotheses were tested with two independent sample t-test and paired sample t-test. Producing 16,399 papers, northern Iran universities had 5.33% of contribution in Iran's scientific production. They received 84,058 citations with 17% and 12% of self-citations belonged to the non-medical and medical universities, respectively. Testing hypotheses revealed that increase in received citations significantly increases the rate of self-citation and increase in scientific production does not necessarily increase the rate of self-citation. The rate of self-citation in the studied universities was not relatively high. However, investigating into the factors affecting the rate of and motives for self-citation needs further research.

  12. Production and citation of cochrane systematic reviews: a bibliometrics analysis.

    Science.gov (United States)

    Shen, Jiantong; Li, Youping; Clarke, Mike; Du, Liang; Wang, Li; Zhong, Dake

    2014-05-06

    To evaluate the production and utilization of Cochrane systematic reviews(CSRs) and to analyze its influential factors, so as to improve the capacity of translating CSRs into practice. All CSRs and protocols were retrieved from the Cochrane Library ISSUE 2, 2011 and citation data were retrieved from SCI database. Citation analysis was used to analyze the situation of CSRs production and utilization. CSR publication had grown from an annual average of 32 to 718 documents. Only one developing country was among the ten countries with the largest amount of publications. High income countries accounted for 83% of CSR publications and 90.8% of cited counts. 34.7% of CSRs had a cited count of 0, while only 0.9% had been cited more than 50 times. Highly cited CSRs were published in England, Australia, Canada, USA and other high income countries. The countries with a Cochrane center or a Cochrane methodology group had a greater capability of CSRs production and citing than others. The CSRs addressing the topics of diseases were more than those targeted at public health issues. There was a big gap in citations of different interventions even for the same topic. The capability of CSR production and translation grew rapidly, but varied among countries and institutions, which was affected by several factors such as the capability of research, the resourcesand the applicability of the evidence. It is important to improve evidence translation through educating, training and prioritizing the problems based on real demands of end user. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  13. Research performance evaluation and citation in the Arabic countries

    Directory of Open Access Journals (Sweden)

    karima Al Salihi

    2013-02-01

    Full Text Available There are a vast number of journals in different disciplines issued in the Arabic language, however the majority of these journals are not currently indexed internationally or provide abstracts. This short communication presents information about the ranking of the Arabic countries in regard to published documents, citations and H-index to the period from 1996-2011 according SJR SCIMAGO LAB powered by Scopus, in addition to presenting the numbers of veterinary sciences documents that were published from 1996-2011 in each country, and the name of journals that included in the Scopus index, and originated from different Arabic countries.

  14. Software papers and citation in the AAS Journals

    Science.gov (United States)

    Robitaille, Thomas; Lintott, Chris

    2018-01-01

    At the start of 2016, AAS Publishing released a policy statement that officially opened the door for papers describing novel software to be published in the AAS Journals without a requirement for novel results to also be included. This statement also describes how the use of software should be cited in articles. In this talk, I will give an overview of this policy and will give an overview of the growth of software papers and software citation in AAS Journals over the last two years.

  15. Macromolecule Mass Spectrometry: Citation Mining of User Documents

    Science.gov (United States)

    2003-11-14

    alpha 12.7, hemoglobin 3.3, globin 2.6, human 2.0, chain 1.4, gamma 1.0, esi 0.9, milk 0.9, lactamas 0.8, alpha.beta 0.8, subunit 0.8, glycat 0.8...journals, organizations). 15. SUBJECT TERMS 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT 18. NUMBER OF PAGES 89 19a. NAME OF...dissemination and impacts of the initial cited papers is also a key feature of Citation Mining, it was desired to limit the analysis to one paper from each

  16. Developing Data Citations from Digital Object Identifier Metadata

    Science.gov (United States)

    James, Nathan; Wanchoo, Lalit

    2015-01-01

    NASA's Earth Science Data and Information System (ESDIS) Project has been processing information for the registration of Digital Object Identifiers (DOI) for the last five years of which an automated system has been in operation for the last two years. The ESDIS DOI registration system has registered over 2000 DOIs with over 1000 DOIs held in reserve until all required information has been collected. By working towards the goal of assigning DOIs to the 8000+ data collections under its management, ESDIS has taken the first step towards facilitating the use of data citations with those products. Jeanne Behnke, ESDIS Deputy Project Manager has reviewed and approved the poster.

  17. Scholarly productivity of united states academic cardiothoracic anesthesiologists: influence of fellowship accreditation and transesophageal echocardiographic credentials on h-index and other citation bibliometrics.

    Science.gov (United States)

    Pagel, Paul S; Hudetz, Judith A

    2011-10-01

    The h-index allows the evaluation of scholarly output in academics, but this bibliometric statistic has not been applied extensively to measure productivity in anesthesiology. The authors tested the hypothesis that the h-index is dependent on academic rank, American College of Graduate Medical Education (ACGME) accreditation of the training program, and National Board of Echocardiography credentials in perioperative transesophageal echocardiography (TEE) in United States academic cardiothoracic anesthesiologists. Observational. Internet analysis. United States academic cardiothoracic anesthesiologists. None. Faculty members from 30 randomly selected fellowship programs with or without accreditation were identified using the Society of Cardiovascular Anesthesiologists web site. The status of each faculty member's credentials in perioperative TEE was defined using the "verify certification" function on the National Board of Echocardiography web site. Publications, citations, citations/publication, and the h-index for each faculty member were obtained using Scopus. Two hundred fifty-nine cardiothoracic anesthesiologists (204 men and 55 women) were identified (8 instructors [3%], 123 assistant professors [48%], 56 associate professors [22%], 63 professors [24%], and 9 chairpersons [3%]). The average cardiothoracic anesthesiologist had an h-index of 6 ± 7 with 28 ± 46 publications, 499 ± 988 total citations, and 13 ± 18 citations per publication. The h-index increased significantly (p professors [3 ± 3], associate professors [7 ± 5], professors [12 ± 8], and chairpersons [18 ± 13]). Significant differences in the number of publications and total citations also were observed among ranks. Differences in the h-index among ranks were observed regardless of program accreditation status or transesophageal echocardiographic credentials. Faculty members working in American College of Graduate Medical Education-accredited programs had more publications and citations and

  18. Predicting long-term citation impact of articles in social and personality psychology.

    Science.gov (United States)

    Haslam, Nick; Koval, Peter

    2010-06-01

    The citation impact of a comprehensive sample of articles published in social and personality psychology journals in 1998 was evaluated. Potential predictors of the 10-yr. citation impact of 1580 articles from 37 journals were investigated, including number of authors, number of references, journal impact factor, author nationality, and article length, using linear regression. The impact factor of the journal in which articles appeared was the primary predictor of the citations that they accrued, accounting for 30% of the total variance. Articles with greater length, more references, and more authors were cited relatively often, although the citation advantage of longer articles was not proportionate to their length. A citation advantage was also enjoyed by authors from the United States of America, Canada, and the United Kingdom. 37% of the variance in the total number of citations was accounted for by the study variables.

  19. Statistical regularities in the rank-citation profile of scientists.

    Science.gov (United States)

    Petersen, Alexander M; Stanley, H Eugene; Succi, Sauro

    2011-01-01

    Recent science of science research shows that scientific impact measures for journals and individual articles have quantifiable regularities across both time and discipline. However, little is known about the scientific impact distribution at the scale of an individual scientist. We analyze the aggregate production and impact using the rank-citation profile c(i)(r) of 200 distinguished professors and 100 assistant professors. For the entire range of paper rank r, we fit each c(i)(r) to a common distribution function. Since two scientists with equivalent Hirsch h-index can have significantly different c(i)(r) profiles, our results demonstrate the utility of the β(i) scaling parameter in conjunction with h(i) for quantifying individual publication impact. We show that the total number of citations C(i) tallied from a scientist's N(i) papers scales as [Formula: see text]. Such statistical regularities in the input-output patterns of scientists can be used as benchmarks for theoretical models of career progress.

  20. Identifying the Academic Rising Stars via Pairwise Citation Increment Ranking

    KAUST Repository

    Zhang, Chuxu

    2017-08-02

    Predicting the fast-rising young researchers (the Academic Rising Stars) in the future provides useful guidance to the research community, e.g., offering competitive candidates to university for young faculty hiring as they are expected to have success academic careers. In this work, given a set of young researchers who have published the first first-author paper recently, we solve the problem of how to effectively predict the top k% researchers who achieve the highest citation increment in Δt years. We explore a series of factors that can drive an author to be fast-rising and design a novel pairwise citation increment ranking (PCIR) method that leverages those factors to predict the academic rising stars. Experimental results on the large ArnetMiner dataset with over 1.7 million authors demonstrate the effectiveness of PCIR. Specifically, it outperforms all given benchmark methods, with over 8% average improvement. Further analysis demonstrates that temporal features are the best indicators for rising stars prediction, while venue features are less relevant.

  1. The Astrophysics Source Code Library: Supporting software publication and citation

    Science.gov (United States)

    Allen, Alice; Teuben, Peter

    2018-01-01

    The Astrophysics Source Code Library (ASCL, ascl.net), established in 1999, is a free online registry for source codes used in research that has appeared in, or been submitted to, peer-reviewed publications. The ASCL is indexed by the SAO/NASA Astrophysics Data System (ADS) and Web of Science and is citable by using the unique ascl ID assigned to each code. In addition to registering codes, the ASCL can house archive files for download and assign them DOIs. The ASCL advocations for software citation on par with article citation, participates in multidiscipinary events such as Force11, OpenCon, and the annual Workshop on Sustainable Software for Science, works with journal publishers, and organizes Special Sessions and Birds of a Feather meetings at national and international conferences such as Astronomical Data Analysis Software and Systems (ADASS), European Week of Astronomy and Space Science, and AAS meetings. In this presentation, I will discuss some of the challenges of gathering credit for publishing software and ideas and efforts from other disciplines that may be useful to astronomy.

  2. Statistical regularities in the rank-citation profile of scientists

    CERN Document Server

    Petersen, Alexander M; Succi, Sauro

    2011-01-01

    Recent "science of science" research shows common regularities in the publication patterns of scientific papers across time and discipline. Here we analyze the complete publication careers of 300 scientists and find remarkable regularity in the functional form of the rank-citation profile c_{i}(r) for each scientist i =1...300. We find that the rank-ordered citation distribution c_{i}(r) can be approximated by a discrete generalized beta distribution (DGBD) over the entire range of ranks r, which allows for the characterization and comparison of c_{i}(r) using a common framework. The functional form of the DGBD has two scaling exponents, beta_i and gamma_i, which determine the scaling behavior of c_{i}(r) for both small and large rank r. The crossover between two scaling regimes suggests a complex reinforcement or positive-feedback relation between the impact of a scientist's most famous papers and the impact of his/her other papers. Moreover, since two scientists with equivalent Hirsch h-index values may hav...

  3. A new era of thromboelastometry.

    Science.gov (United States)

    Crochemore, Tomaz; Piza, Felipe Maia de Toledo; Rodrigues, Roseny Dos Reis; Guerra, João Carlos de Campos; Ferraz, Leonardo José Rolim; Corrêa, Thiago Domingos

    2017-06-12

    Severe hemorrhage with necessity of allogeneic blood transfusion is common complication in intensive care unit and is associated with increased morbidity and mortality. Prompt recognition and treatment of bleeding causes becomes essential for the effective control of hemorrhage, rationalizing the use of allogeneic blood components, and in this way, preventing an occurrence of their potential adverse effects. Conventional coagulation tests such as prothrombin time and activated partial thromboplastin time present limitations in predicting bleeding and guiding transfusion therapy in critically ill patients. Viscoelastic tests such as thromboelastography and rotational thromboelastometry allow rapid detection of coagulopathy and goal-directed therapy with specific hemostatic drugs. The new era of thromboelastometry relies on its efficacy, practicality, reproducibility and cost-effectiveness to establish itself as the main diagnostic tool and transfusion guide in patients with severe active bleeding. RESUMO A hemorragia grave com necessidade de transfusão de sangue e componentes é uma complicação frequente na unidade de terapia intensiva e está associada ao aumento da morbidade e da mortalidade. A identificação adequada e o tratamento precoce da causa específica da coagulopatia tornam-se fundamentais para o controle efetivo da hemorragia, racionalizando a utilização de sangue e componentes, e desta forma, prevenindo a ocorrência de efeitos adversos. Testes convencionais da coagulação (tempo de ativação de protrombina e tempo de tromboplastina parcial ativada) apresentam limitações para prever sangramento e guiar a terapia transfusional em pacientes graves. Testes viscoelásticos como a tromboelastografia e tromboelastometria rotacional permitem a rápida detecção da coagulopatia e orientam a terapia de forma individualizada, alvo dirigida com drogas hemostáticas específicas. A nova era da tromboelastometria confia na sua eficácia, praticidade

  4. The Historical Path of Evaluation as Reflected in the Content of Evaluation and Program Planning

    DEFF Research Database (Denmark)

    Ayob, Abu H.; Morell, Jonathan A.

    2016-01-01

    This paper examines the intellectual structure of evaluation by means of citation analysis. By using various article attributes and citation counts in Google Scholar and (Social) Science Citation Index Web of Science, we analyze all articles published in Evaluation and Program Planning from 2000...

  5. Early Modern “Citation Index”? Medical Authorities in Academic Treatises on Plague (1480–1725)

    OpenAIRE

    Karel Černý

    2012-01-01

    The paper deals with the problem of early modern scientific citations. It attempts to establish a measure of scientific popularity in a specific area of the academic medicine in a way which resembles a modern evaluation of scientific activity (citation index). For this purpose an analysis of a series of plague treatises written between 1480 and 1725 in Europe was conducted. Citations for various historical medical authorities (Hippocrates, Galen, etc.) are given in Tables which reflect a long...

  6. Croatian Medical Journal citation score in Web of Science, Scopus, and Google Scholar.

    Science.gov (United States)

    Sember, Marijan; Utrobicić, Ana; Petrak, Jelka

    2010-04-01

    To analyze the 2007 citation count of articles published by the Croatian Medical Journal in 2005-2006 based on data from the Web of Science, Scopus, and Google Scholar. Web of Science and Scopus were searched for the articles published in 2005-2006. As all articles returned by Scopus were included in Web of Science, the latter list was the sample for further analysis. Total citation counts for each article on the list were retrieved from Web of Science, Scopus, and Google Scholar. The overlap and unique citations were compared and analyzed. Proportions were compared using chi(2)-test. Google Scholar returned the greatest proportion of articles with citations (45%), followed by Scopus (42%), and Web of Science (38%). Almost a half (49%) of articles had no citations and 11% had an equal number of identical citations in all 3 databases. The greatest overlap was found between Web of Science and Scopus (54%), followed by Scopus and Google Scholar (51%), and Web of Science and Google Scholar (44%). The greatest number of unique citations was found by Google Scholar (n=86). The majority of these citations (64%) came from journals, followed by books and PhD theses. Approximately 55% of all citing documents were full-text resources in open access. The language of citing documents was mostly English, but as many as 25 citing documents (29%) were in Chinese. Google Scholar shares a total of 42% citations returned by two others, more influential, bibliographic resources. The list of unique citations in Google Scholar is predominantly journal based, but these journals are mainly of local character. Citations received by internationally recognized medical journals are crucial for increasing the visibility of small medical journals but Google Scholar may serve as an alternative bibliometric tool for an orientational citation insight.

  7. Protective clothing: Fire and radiation environments. (Latest citations from the NTIS bibliographic database). Published Search

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-11-01

    The bibliography contains citations concerning clothing design, fabrication, and testing for personal protection from exposure to flames and radiation. Citations discuss the treatment of fibers and textiles, testing for physiological tolerances, and methods of decontamination after exposure. Discussed also are user acceptance and proper use of protective clothing by firefighters, nuclear energy personnel, and others. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  8. Does a Long Reference List Guarantee More Citations? Analysis of Malaysian Highly Cited and Review Papers

    OpenAIRE

    Ale Ebrahim, Nader; Ebrahimian, H.; Mousavi, Maryam; Tahriri, Farzad

    2015-01-01

    Earlier publications have shown that the number of references as well as the number of received citations are field-dependent. Consequently, a long reference list may lead to more citations. The purpose of this article is to study the concrete relationship between number of references and citation counts. This article tries to find an answer for the concrete case of Malaysian highly cited papers and Malaysian review papers. Malaysian paper is a paper with at least one Malaysian affiliation. A...

  9. Impact of the web on citation and information-seeking behaviour of academics

    OpenAIRE

    2012-01-01

    D.Litt. et Phil. This study investigated the impact of the Web on the information-seeking and citation behaviour of Unisa academics. The research study was executed in two phases. Phase 1 consisted of a Web citation analysis and phase 2 a questionnaire. Phase 1 explored how the availability of Web information resources affected the scholarly citation behaviour of Unisa academics by determining the relationship between Web-based references and non-Web-based references in the reference lists...

  10. El lenguaje en la era digital

    Directory of Open Access Journals (Sweden)

    Juan Carlos Vergara Silva

    1998-02-01

    Con base en la interrelación entre lenguaje y pensamiento se plantea el papel fundamental que el lenguaje ocupa en el modelo económico, educativo y cultural generado por la aparición de la era digital o era del conocimiento. en este artículo se evidencian los retos que genera una era marcada por un esquema digital en el desarrollo y uso de habilidades comunicativas tanto en la docencia superior como en el ejercicio profesional eficiente.

  11. Periodistas para la era digital

    Directory of Open Access Journals (Sweden)

    Fernando Villalobos G.

    2014-12-01

    Full Text Available La formación de los periodistas del siglo XXI en la era digital se concibe como un reto y el mayor desafío. Los medios digitales demandan especialización y dominio de las nuevas tecnologías. Las universidades, principales gestores de este cambio, en la sociedad del conocimiento, requieren trabajar en la reformulación de nuevos pensum y en tres terrenos fundamentales: el perfil del egresado, el estilo pedagógico y el nuevo modo de relacionarse con el mundo exterior. Se necesita de una oferta académica referida al ciberperiodismo y a la cibercomunicación. La profesión periodística, y específicamente la formación de los comunicadores registra cambios importantes debido a las nuevas tecnologías, ahora el aula es el mundo globalizado e interconectado por la gran autopista de la información, por ello, la formación del comunicador social, demanda renovadas prácticas educativas. Las universidades deben repensar el papel que están obligadas a desempeñar, reformular los pensum académicos y ofertar la cibercomunicación y el ciberperiodismo para estar al día de las grandes transformaciones.

  12. A THIRD ERA OF MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Liviu NEAMŢU

    2009-12-01

    Full Text Available Management like any social activity through specific stages of development trends from general society. Following these historical trends, this study summarizes the evolution of management at four stages of a full cycle of development, from a informal management to one perfect formalized. These stages of development are found differential represented at the various economic development regions in the world. Evolution increasingly grouped patterns of management and generalization for schools of thought management determines the current global development of worldwide management. For the current stage of evolution may be called as "the third era of management" or "imperial period” in which management pressures on individuals, employers or subordinate, are enormous. Evolution of companies, of markets and national economies also the global economy is driven by the current trend in management, leading to very strong mutations in the relationship of forces. The world economy is in what is called "war of resources" and the alternative that we believe is necessary in this "human management" although speculative trends of concentration of capital are binding on any plans or state regulators global ethical management.

  13. Citations and references as keys to relevance ranking in interactive IR

    DEFF Research Database (Denmark)

    Ingwersen, Peter

    2012-01-01

    According to the principle of Polyrepresentation (Ingwersen & Järvelin, 2005; Ingwersen, 2012) bibliographic references in scientific documents as well as citations to documents have the potential of serving as useful features for re-ranking of retrieved documents. References (and thus citations...... been demonstrated to improve retrieval performance (Skov et al. 2008), whereas the number of citations has not provided similar improvements. The presentation will discuss the following phenomena and characteristics of references and citations as means for relevance re-ranking: 1) Are academic...

  14. Scientific citations favor positive results: a systematic review and meta-analysis.

    Science.gov (United States)

    Duyx, Bram; Urlings, Miriam J E; Swaen, Gerard M H; Bouter, Lex M; Zeegers, Maurice P

    2017-08-01

    Citation bias concerns the selective citation of scientific articles based on their results. We brought together all available evidence on citation bias across scientific disciplines and quantified its impact. An extensive search strategy was applied to the Web of Science Core Collection and Medline, yielding 52 studies in total. We classified these studies on scientific discipline, selection method, and other variables. We also performed random-effects meta-analyses to pool the effect of positive vs. negative results on subsequent citations. Finally, we checked for other determinants of citation as reported in the citation bias literature. Evidence for the occurrence of citation bias was most prominent in the biomedical sciences and least in the natural sciences. Articles with statistically significant results were cited 1.6 (95% confidence interval [CI] 1.3-1.8) times more often than articles with nonsignificant results. Articles in which the authors explicitly conclude to have found support for their hypothesis were cited 2.7 (CI 2.0-3.7) times as often. Article results and journal impact factor were associated with citation more often than any other reported determinant. Similar to what we already know on publication bias, also citation bias can lead to an overrepresentation of positive results and unfounded beliefs. Copyright © 2017 Elsevier Inc. All rights reserved.

  15. A Large-Scale Analysis of Impact Factor Biased Journal Self-Citations.

    Science.gov (United States)

    Chorus, Caspar; Waltman, Ludo

    2016-01-01

    Based on three decades of citation data from across scientific fields of science, we study trends in impact factor biased self-citations of scholarly journals, using a purpose-built and easy to use citation based measure. Our measure is given by the ratio between i) the relative share of journal self-citations to papers published in the last two years, and ii) the relative share of journal self-citations to papers published in preceding years. A ratio higher than one suggests that a journal's impact factor is disproportionally affected (inflated) by self-citations. Using recently reported survey data, we show that there is a relation between high values of our proposed measure and coercive journal self-citation malpractices. We use our measure to perform a large-scale analysis of impact factor biased journal self-citations. Our main empirical result is, that the share of journals for which our measure has a (very) high value has remained stable between the 1980s and the early 2000s, but has since risen strongly in all fields of science. This time span corresponds well with the growing obsession with the impact factor as a journal evaluation measure over the last decade. Taken together, this suggests a trend of increasingly pervasive journal self-citation malpractices, with all due unwanted consequences such as inflated perceived importance of journals and biased journal rankings.

  16. A Large-Scale Analysis of Impact Factor Biased Journal Self-Citations.

    Directory of Open Access Journals (Sweden)

    Caspar Chorus

    Full Text Available Based on three decades of citation data from across scientific fields of science, we study trends in impact factor biased self-citations of scholarly journals, using a purpose-built and easy to use citation based measure. Our measure is given by the ratio between i the relative share of journal self-citations to papers published in the last two years, and ii the relative share of journal self-citations to papers published in preceding years. A ratio higher than one suggests that a journal's impact factor is disproportionally affected (inflated by self-citations. Using recently reported survey data, we show that there is a relation between high values of our proposed measure and coercive journal self-citation malpractices. We use our measure to perform a large-scale analysis of impact factor biased journal self-citations. Our main empirical result is, that the share of journals for which our measure has a (very high value has remained stable between the 1980s and the early 2000s, but has since risen strongly in all fields of science. This time span corresponds well with the growing obsession with the impact factor as a journal evaluation measure over the last decade. Taken together, this suggests a trend of increasingly pervasive journal self-citation malpractices, with all due unwanted consequences such as inflated perceived importance of journals and biased journal rankings.

  17. Growing complex network of citations of scientific papers: Modeling and measurements

    Science.gov (United States)

    Golosovsky, Michael; Solomon, Sorin

    2017-01-01

    We consider the network of citations of scientific papers and use a combination of the theoretical and experimental tools to uncover microscopic details of this network growth. Namely, we develop a stochastic model of citation dynamics based on the copying-redirection-triadic closure mechanism. In a complementary and coherent way, the model accounts both for statistics of references of scientific papers and for their citation dynamics. Originating in empirical measurements, the model is cast in such a way that it can be verified quantitatively in every aspect. Such validation is performed by measuring citation dynamics of physics papers. The measurements revealed nonlinear citation dynamics, the nonlinearity being intricately related to network topology. The nonlinearity has far-reaching consequences including nonstationary citation distributions, diverging citation trajectories of similar papers, runaways or "immortal papers" with infinite citation lifetime, etc. Thus nonlinearity in complex network growth is our most important finding. In a more specific context, our results can be a basis for quantitative probabilistic prediction of citation dynamics of individual papers and of the journal impact factor.

  18. Citation Analysis of the Indian Journal of Information, Library and Society

    OpenAIRE

    Ramesh, L. S. R. C. V.; Nagaraju, A. V. S. S.

    2000-01-01

    Analyses the citations provided in articles of the Indian Journal of Information, Library and Society (IJILIS), during 1995-1999. The journal received 7 citations per article. About 67.5 % of articles had 1-20 citations. More citations were from the books and periodicals than the other type of materials. Tendency of authors seems to cite indegenous work more as compared to the documents published in other countries. Out of 138 citing articles, 37 articles have no references. Dr. S.R. Ranga...

  19. MEMAKNAI SUMPAH PEMUDA DI ERA REFORMASI

    Directory of Open Access Journals (Sweden)

    Sutejo K. Widodo

    2013-03-01

    Full Text Available The moment of Sumpah Pemuda (Young Man Oath took place 84 years ago, reflecting the spirit of nationalism that is still very important in this Reformation era. This paper endeavors to dig deeper meaning of Sumpah Pemuda in its pre-independence era and applying it to our contemporary situation. The method used here is historical research using literature resources, such as articles, books, and other readings in internet. It is then concluded that the spirit of Sumpah Pemuda should be our contemplative materials and valuable Iesson so that Reformation era may succeed in achieving national goals stated in the Constitution, a society that is fair, prosperous, and democratic. Keywords: Sumpah Pemuda, Reformation era, nationalism.

  20. ERA DISTRIBUTION OF INFORMATION SYSTEMS JOURNALS

    National Research Council Canada - National Science Library

    Lamp, John W; Fisher, Julie

    2010-01-01

    ... – and from commercial and open access publishers. This paper investigates the distribution of information systems journals over the various ERA parameters and comments on a claim of bias whereby the ranking of a journal is positively influenced...

  1. Implementation of Data Citations and Persistent Identifiers at the ORNL DAAC

    Science.gov (United States)

    Cook, R. B.; Santhana Vannan, S.; Devarakonda, Ranjeet; McMurry, B. F.; Kidder, J. H.; Shanafield, H. A.; Palanisamy, G.

    2013-12-01

    As research in Earth Science becomes more data intensive, a critical requirement of data archives is that data needs to be easily discovered, accessed, and used. One approach to improving data discovery and access is through data citations coupled with Digital Object Identifiers (DOI). Beginning in 1998, the Oak Ridge National Laboratory Distributed Active Archive Center (ORNL DAAC) has issued data product citations that have been accepted and used in AGU and other peer-reviewed journals. Citation elements established by the ORNL DAAC are similar to those used for journal articles (authors, titles, information to locate, and version), and beginning in 2007 included a DOI that is persistent, actionable, specific, and complete. The citation approach used at the DAAC also allows for referring to specific subsets of the data, by including within the citation the temporal and spatial portions of the data actually used. Citations allow others to find data and reproduce the results of the research article, and also use those data to test new hypotheses, design new sample collections, or construct or evaluate models. In addition to enhancing discovery and access of the data used in a research article, the citation gives credit to data generators, data centers and their funders, and, through citation indices, determine the scientific impact of a data set. The ORNL DAAC has developed a database that links research articles and their use of ORNL DAAC data products. The database allows determination of who, in which journal, and how the data have been used, in a manner analogous to author citation indices. The ORNL DAAC has been an initial contributor to the Thomson Reuters Data Citation Index. In addition, research data products deposited at the ORNL DAAC are linked using DOIs to relevant articles in Elsevier journals available on ScienceDirect. The ultimate goal of this implementation is that citations to data products become a routine part of the scientific process.

  2. [Analysis of articles and citations of Chinese Journal of Pediatrics from 1950 to 2009].

    Science.gov (United States)

    Leng, Jing; Hu, Yan-Ping; Li, Lin-Ping

    2011-01-01

    To explore the articles, authors and citations of the articles published in Chinese Journal of Pediatrics, and have a clear view of the characteristics of this journal in its different development stages. Bibliometric methods were used to analyze the published articles, cooperation, regional distribution, core authors, corresponding authors and high-quantities of publication institutes, and also to calculate the number of citations per paper, types of citations, language-based citation number, Price index, self-cited rate and the distribution of journals based on citations. Totally 5534 academic articles were published during the 60 years, of which the number of articles written by more than one author was 4669 (80.71%), with a degree of collaboration as 3.87, and a rate of collaboration as 84.37%. The number of articles by a single author was 865 (19.29%). As for the regions from where the papers were submitted, the top one was Beijing, which had 1495 articles published (27.01%). The top 15 institutes in number of articles had published 2254 articles (40.73%). The average citation rate was 84.15%, and the number of citations was 48 854. The number of citations per paper was 10.06, the Price index and self-cited rate were 55.57% and 6.12%, respectively. The number of citations from foreign language literature was 35 781 (69.1%). The citation number of journals was 43 266 (84.5%), which is markedly higher than the citations of books and others. Chinese Journal of Pediatrics has a wide distribution of authors and a high cooperative rate. This journal has a group of high-level core authors since founded in 1950, and it shows an adequate ability of absorbing and using scientific information. The articles published in this journal not only objectively reflected the distribution of the research powers, but also the development status of pediatrics in our country.

  3. New era of electronic brachytherapy.

    Science.gov (United States)

    Ramachandran, Prabhakar

    2017-04-28

    Traditional brachytherapy refers to the placement of radioactive sources on or inside the cancer tissues. Based on the type of sources, brachytherapy can be classified as radionuclide and electronic brachytherapy. Electronic brachytherapy uses miniaturized X-ray sources instead of radionuclides to deliver high doses of radiation. The advantages of electronic brachytherapy include low dose to organs at risk, reduced dose to treating staff, no leakage radiation in off state, less shielding, and no radioactive waste. Most of these systems operate between 50 and 100 kVp and are widely used in the treatment of skin cancer. Intrabeam, Xoft and Papillon systems are also used in the treatment of intra-operative radiotherapy to breast in addition to other treatment sites. The rapid fall-off in the dose due to its low energy is a highly desirable property in brachytherapy and results in a reduced dose to the surrounding normal tissues compared to the Ir-192 source. The Xoft Axxent brachytherapy system uses a 2.25 mm miniaturized X-ray tube and the source almost mimics the high dose rate Ir-192 source in terms of dose rate and it is the only electronic brachytherapy system specifically used in the treatment of cervical cancers. One of the limiting factors that impede the use of electronic brachytherapy for interstitial application is the source dimension. However, it is highly anticipated that the design of miniaturized X-ray tube closer to the dimension of an Ir-192 wire is not too far away, and the new era of electronic brachytherapy has just begun.

  4. A new era of competitiveness.

    Science.gov (United States)

    Theadore, Jason C

    2011-01-01

    Many of my family, friends, and colleagues would describe me as competitive and that at times I overuse this skill with a win-at-all-costs attitude. I would tend to agree. I love to win. Yet for me winning is not about me, it is as our coaches suggest, about others. I was recently asked by a new clinical leader if I missed taking care of patients. Without thinking, my response was that I take part in the care (add value) of every patient as a leader. Every decision we make as leaders (coaches) impacts many others regardless of the magnitude of our decision and, at times, our direct involvement. Operational excellence, in any field, is about winning. We all have different definitions of winning, defined by the strategic vision for our organizations. An organization's managers, supervisors, and employees all play an important role in the team to achieve the vision of the organization. As some elite coaches have suggested, winning starts with each of us being our best. Today's environment requires consistent change. Yet many in the radiology field change the wrong things for the wrong reasons. Many organizations and individuals look for instant gratification, specifically in this new era of competitiveness. Many evaluate what their competitors are doing in the market, what cars their neighbors are buying, or become jealous over a friend's success. Focusing on others and not improving yourself takes your focus away from what is important-you and the team you lead. Keeping your focus on your operations and what you can control may very well help you coach a winning team.

  5. New era of electronic brachytherapy

    Science.gov (United States)

    Ramachandran, Prabhakar

    2017-01-01

    Traditional brachytherapy refers to the placement of radioactive sources on or inside the cancer tissues. Based on the type of sources, brachytherapy can be classified as radionuclide and electronic brachytherapy. Electronic brachytherapy uses miniaturized X-ray sources instead of radionuclides to deliver high doses of radiation. The advantages of electronic brachytherapy include low dose to organs at risk, reduced dose to treating staff, no leakage radiation in off state, less shielding, and no radioactive waste. Most of these systems operate between 50 and 100 kVp and are widely used in the treatment of skin cancer. Intrabeam, Xoft and Papillon systems are also used in the treatment of intra-operative radiotherapy to breast in addition to other treatment sites. The rapid fall-off in the dose due to its low energy is a highly desirable property in brachytherapy and results in a reduced dose to the surrounding normal tissues compared to the Ir-192 source. The Xoft Axxent brachytherapy system uses a 2.25 mm miniaturized X-ray tube and the source almost mimics the high dose rate Ir-192 source in terms of dose rate and it is the only electronic brachytherapy system specifically used in the treatment of cervical cancers. One of the limiting factors that impede the use of electronic brachytherapy for interstitial application is the source dimension. However, it is highly anticipated that the design of miniaturized X-ray tube closer to the dimension of an Ir-192 wire is not too far away, and the new era of electronic brachytherapy has just begun. PMID:28529679

  6. Relative Citation Ratio of Top Twenty Macedonian Biomedical Scientists in PubMed: A New Metric that Uses Citation Rates to Measure Influence at the Article Level

    Directory of Open Access Journals (Sweden)

    Mirko Spiroski

    2016-06-01

    Conclusion: It is necessary to accept top twenty Macedonian biomedical scientists as an example of new metric that uses citation rates to measure influence at the article level, rather than qualification of the best Macedonian biomedical scientists.

  7. Bibliometrics, citation indexing, and the journals of nursing.

    Science.gov (United States)

    Smith, Derek R; Hazelton, Michael

    2008-12-01

    Bibliometric research has risen in popularity during recent years and an increasing number of investigations now have examined the nursing literature. Our article provides a comprehensive overview of citation-based research in the nursing profession, as well as a discussion of bibliometrics, journal impact factors, and international publishing trends. The debate on evidence-based practice and its potential influence and relevance for nursing scholars is also covered. Although journal performance indicators are, no doubt, important for the contemporary nursing academic, it is the core research skills and attributes that nursing scholars, academics, and educators will need to consider more carefully in future if the next generation of professional nurse researchers is to truly flourish.

  8. Dominance of foreign citations in Brazilian orthopedics journals.

    Science.gov (United States)

    Teixeira, Renan Kleber Costa; Yamaki, Vitor Nagai; Rosa, Rita de Cássia Rodrigues; de Barros, Rui Sergio Monteiro; Botelho, Nara Macedo

    2014-01-01

    To evaluate whether there is any preference for citing journals from other countries to the detriment of Brazilian journals, in three Brazilian orthopedics journals. All the references of articles published in 2011 by the journals Acta Ortopédica Brasileira, Coluna/Columna and Revista Brasileira de Ortopedia were evaluated to as certain how many of these came from Brazilian journals and how many from foreign journals. 3813 references distributed among 187 articles were analyzed. Out of this total, 306 (8.02%) were from Brazilian journals. There was no difference between the three journals analyzed. There were 76 articles (40.64%) without any citations of articles in Brazilian journals and only two articles (1%) cited more Brazilian articles than articles published elsewhere. There is a need for Brazilian researchers to cite articles from Brazilian journals more often.

  9. Discussion on International Policies in Higher Education: citation analysis

    Directory of Open Access Journals (Sweden)

    Nancy Sánchez-Tarragó

    2015-11-01

    Full Text Available This work aims promoting an understanding of internationalization in higher education, as part of a broader research exploring its dimensions from the Information Science. Its aim is to identify the most significant work in this area and analyze their intellectual structure, from which reflections on the implications for the establishment of university policies are made. For this, a citation and cocitation analysis of scientific literature on the subject registered in the Scopus database and a documentary analysis of the most cited articles is performed. Multivariate analysis techniques as cluster analysis and multidimensional scaling are used. The study clusters authors and journals on topics as Concepts and models of internationalization; Intercultural communication; International mobility and migration; Neoliberalism, globalization and academic capitalism. The key aspects identified allowed reflecting on internationalization policies discussions, including the motivations and objectives of internationalization and the dichotomy between the search for international visibility and intercultural dimension.

  10. Bibliographic Citations With Special Reference Indian Bibliographic Standard

    Directory of Open Access Journals (Sweden)

    Reshmi Sarkar

    2015-08-01

    Full Text Available Bibliographic citation is playing an important role today to ensure the completeness of all research activities. They occupy an integral part as a reference in all types of resources need. The author while writing a paper takes the references from a number of documents and finally quotes them with its bibliographic details to recognize the work of earlier authors in the same field of study. With the virtually exponential growth in the research literatures throughout the 20th century it has become clear that the larger the literature the more difficult are the problems caused by poorly crafted bibliographic references. Scholarly societies like publishers of research journals have either produced their own or have endorsed common bibliographic style manuals or standards. In this study we have studied several style manuals and standards for bibliographic referencing and several editorial guidelines for this purpose to compare them. Indian bibliographic standard gets special attention.

  11. Electronic journals and scholarly communication: a citation and reference study

    Directory of Open Access Journals (Sweden)

    Stephen P. Harter

    1996-01-01

    Full Text Available The journal is fundamental to formal scholarly communication. This research reports highlights and preliminary findings from an empirical study of scholarly electronic journals. The purpose of the research is to assess the impact of electronic journals (e-journals on scholarly communication, by measuring the extent to which they are being cited in the literature, both print and electronic. The intent is to provide a snapshot of the impact e-journals were having on scholarly communication at a given point in time, roughly the end of 1995. This study provides one measure of that impact, specifically on the formal, as opposed to informal, communication process. The study also examines the forms in which scholars cite e-journals, the accuracy and completeness of citations to e-journals, and practical difficulties faced by scholars and researchers who wish to retrieve e-journals through the networks.

  12. Citation Analysis of the Korean Journal of Urology From Web of Science, Scopus, Korean Medical Citation Index, KoreaMed Synapse, and Google Scholar.

    Science.gov (United States)

    Huh, Sun

    2013-04-01

    The Korean Journal of Urology began to be published exclusively in English in 2010 and is indexed in PubMed Central/PubMed. This study analyzed a variety of citation indicators of the Korean Journal of Urology before and after 2010 to clarify the present position of the journal among the urology category journals. The impact factor, SCImago Journal Rank (SJR), impact index, Z-impact factor (ZIF, impact factor excluding self-citation), and Hirsch Index (H-index) were referenced or calculated from Web of Science, Scopus, SCImago Journal & Country Ranking, Korean Medical Citation Index (KoMCI), KoreaMed Synapse, and Google Scholar. Both the impact factor and the total citations rose rapidly beginning in 2011. The 2012 impact factor corresponded to the upper 84.9% in the nephrology-urology category, whereas the 2011 SJR was in the upper 58.5%. The ZIF in KoMCI was one fifth of the impact factor because there are only two other urology journals in KoMCI. Up to 2009, more than half of the citations in the Web of Science were from Korean researchers, but from 2010 to 2012, more than 85% of the citations were from international researchers. The H-indexes from Web of Science, Scopus, KoMCI, KoreaMed Synapse, and Google Scholar were 8, 10, 12, 9, and 18, respectively. The strategy of the language change in 2010 was successful from the perspective of citation indicators. The values of the citation indicators will continue to increase rapidly and consistently as the research achievement of authors of the Korean Journal of Urology increases.

  13. The Citation Landscape of Scholarly Literature in LGBT Studies: A Snapshot for Subject Librarians

    Science.gov (United States)

    Antell, Karen

    2012-01-01

    This paper reports the results of a citation analysis of the scholarly literature of LGBT Studies. EBSCO's LGBT Life database was used to gather a sample of 4,321 citations from core scholarly journals in the field of LGBT Studies, covering the time period 1974 to 2010. The analysis reveals that, although LGBT Studies as an area of scholarship…

  14. Knowledge linkage structures in communication studies using citation analysis among communication journals

    NARCIS (Netherlands)

    Park, H.W.; Leydesdorff, L.

    2009-01-01

    This research analyzes a "who cites whom" matrix in terms of aggregated journal-journal citations to determine the location of communication studies on the academic spectrum. Using the Journal of Communication as the seed journal, the 2006 data in the Journal Citation Reports are used to map

  15. Citation Analysis for the Modern Instructor: An Integrated Review of Emerging Research

    Directory of Open Access Journals (Sweden)

    Chris Piotrowski

    2013-07-01

    Full Text Available While online instructors may be versed in conducting e-Research (Hung, 2012; Thelwall, 2009, today’s faculty are probably less familiarized with the rapidly advancing fields of bibliometrics and informetrics. One key feature of research in these areas is Citation Analysis, a rather intricate operational feature available in modern indexes such as Web of Science, Scopus, Google Scholar, and PsycINFO. This paper reviews the recent extant research on bibliometrics within the context of citation analysis. Particular focus is on empirical studies, review essays, and critical commentaries on citation-based metrics across interdisciplinary academic areas. Research that relates to the interface between citation analysis and applications in higher education is discussed. Some of the attributes and limitations of citation operations of contemporary databases that offer citation searching or cited reference data are presented. This review concludes that: a citation-based results can vary largely and contingent on academic discipline or specialty area, b databases, that offer citation options, rely on idiosyncratic methods, coverage, and transparency of functions, c despite initial concerns, research from open access journals is being cited in traditional periodicals, and d the field of bibliometrics is rather perplex with regard to functionality and research is advancing at an exponential pace. Based on these findings, online instructors would be well served to stay abreast of developments in the field.

  16. Predictors of Citation Rate in Psychology: Inconclusive Influence of Effect and Sample Size.

    Science.gov (United States)

    Hanel, Paul H P; Haase, Jennifer

    2017-01-01

    In the present article, we investigate predictors of how often a scientific article is cited. Specifically, we focus on the influence of two often neglected predictors of citation rate: effect size and sample size, using samples from two psychological topical areas. Both can be considered as indicators of the importance of an article and post hoc (or observed) statistical power, and should, especially in applied fields, predict citation rates. In Study 1, effect size did not have an influence on citation rates across a topical area, both with and without controlling for numerous variables that have been previously linked to citation rates. In contrast, sample size predicted citation rates, but only while controlling for other variables. In Study 2, sample and partly effect sizes predicted citation rates, indicating that the relations vary even between scientific topical areas. Statistically significant results had more citations in Study 2 but not in Study 1. The results indicate that the importance (or power) of scientific findings may not be as strongly related to citation rate as is generally assumed.

  17. Comparison of Journal Citation Reports and Scopus Impact Factors for Ecology and Environmental Sciences Journals

    Science.gov (United States)

    Gray, Edward; Hodkinson, Sarah Z.

    2008-01-01

    Impact factors for journals listed under the subject categories "ecology" and "environmental sciences" in the Journal Citation Reports database were calculated using citation data from the Scopus database. The journals were then ranked by their Scopus impact factor and compared to the ranked lists of the same journals derived from Journal…

  18. Impact of Voluntary Accreditation on Deficiency Citations in U.S. Nursing Homes

    Science.gov (United States)

    Wagner, Laura M.; McDonald, Shawna M.; Castle, Nicholas G.

    2012-01-01

    Purpose of the Study: This study examines the association between nursing home accreditation and deficiency citations. Design and Methods: Data originated from a web-based search of The Joint Commission (TJC) accreditation and On-line Survey Certification of Automated Records from 2002 to 2010. Deficiency citations were divided into 4 categories:…

  19. Correlating Libcitations and Citations in the Humanities with WorldCat and Scopus Data

    DEFF Research Database (Denmark)

    Zuccala, Alesia Ann; White, Howard D.

    2015-01-01

    when books are divided by main Dewey class. The overall results are inconclusive, however, because the Scopus citation counts for the books tend to be very low. Further correlational research should probably use the much higher book citation counts from Google Scholar. Nevertheless, a qualitative...

  20. Asbestos in drinking water. (Latest citations from the Selected Water Resources Abstracts data base). Published Search

    Energy Technology Data Exchange (ETDEWEB)

    1992-09-01

    The bibliography contains citations concerning the occurrence and problems associated with drinking water contaminated by asbestos fibers. Water supply contamination by asbestos cement pipes and factors involved in the release of asbestos fibers are discussed. Topics also include distribution data, epidemiology studies, health effects, detection, and measurement methods. (Contains a minimum of 114 citations and includes a subject term index and title list.)

  1. Micropropagation. (Latest citations from the Life Sciences Collection database). Published Search

    Energy Technology Data Exchange (ETDEWEB)

    1993-01-01

    The bibliography contains citations concerning micropropagation of various plants. Topics examine micropropagation culture media, automation systems, use of growth stimulants and cytokinins, industrial micropropagation, and production of disease-free plants. Micropropagation of ornamental trees, potato, blueberry, apple, algae, citrus, grape, and gymnosperms are described. (Contains a minimum of 61 citations and includes a subject term index and title list.)

  2. Teaching the Vocabulary of Citation: Action Research in a Southeast Asian Context

    Science.gov (United States)

    Lynch, Jena

    2016-01-01

    This action research project sought to investigate the role of explicit citation vocabulary instruction in the learning of citation style guidelines for an English for Academic Purposes (EAP) writing course at an English-medium university in Northern Thailand. The participants consisted of 120 undergraduate students enrolled in the EAP writing…

  3. 48 CFR 47.104-5 - Citation of Government rate tenders.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Citation of Government rate tenders. 47.104-5 Section 47.104-5 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION CONTRACT MANAGEMENT TRANSPORTATION General 47.104-5 Citation of Government rate tenders. When 49 U...

  4. PRN 98-5: New Forms for the Certification with Respect to Citation of Data

    Science.gov (United States)

    In 1998, EPA established new forms for citation of data to support the registration or reregistration of pesticide products. These forms are EPA Form 8570-34 (“Certification with Respect to Citation of Data”) and 8570-35 (“Data Matrix”).

  5. A century of citation classics in otolaryngology-head and neck surgery journals revisited.

    Science.gov (United States)

    Coelho, Daniel H; Edelmayer, Luke W; Fenton, John E

    2014-06-01

    Citation classics have traditionally been defined in the smaller medical specialties as any article published in a peer-reviewed journal that has received 100 or more citations from other articles also published in peer-reviewed journals. This study aimed to determine patterns of citation classics changes in the medical field otorhinolaryngology and head and neck surgery (OHNS) over the past decade and serves as a follow-up to an original study published in 2002, "A Century of Citation Classics in Otolaryngology-Head & Neck Surgery." Bibliometric analysis. Using the Journal Citation Reports and Web of Science, OHNS journals were selected and assessed for the content of citation classics. Nine-hundred five citation classics were found, over 11-fold more than 1 decade prior. Other significant changes were seen in country of origin, decade of publication, number of authors per article, subspecialty of article, and most frequently discussed topics. The dramatic rise in quantity and nature of citation classics in the past decade may be due to unprecedented advancements in information technology and communication, allowing studies and experiments to be performed, written, reviewed, published, and cited at rapid rates. NA. © 2013 The American Laryngological, Rhinological and Otological Society, Inc.

  6. Citation Practices among Non-Native Expert and Novice Scientific Writers

    Science.gov (United States)

    Mansourizadeh, Kobra; Ahmad, Ummul K.

    2011-01-01

    Citation is one of the most prominent features of academic writing through which academic writers both exhibit the breadth of their scholarship in a specific research area and subtly demonstrate their memberships of the disciplinary community. Citations are important rhetorical devices that allow seasoned writers to promote their current research…

  7. Mapping the Field of Educational Administration Research: A Journal Citation Network Analysis

    Science.gov (United States)

    Wang, Yinying; Bowers, Alex J.

    2016-01-01

    Purpose: The purpose of this paper is to uncover how knowledge is exchanged and disseminated in the educational administration research literature through the journal citation network. Design/ Methodology/Approach: Drawing upon social network theory and citation network studies in other disciplines, the authors constructed an educational…

  8. The more publication, the higher impact factor: citation analysis of top nine gastroenterology and hepatology journals.

    Science.gov (United States)

    Karimi Elizee, Pegah; Karimzadeh Ghassab, Romina; Raoofi, Azam; Miri, Seyyed Mohammad

    2012-12-01

    The impact factor (IF), as the most important criterion for journal's quality measurement, is affected by the self-citation and number of publications in each journal. To find out the relationship between the number of publications and self-citations in a journal, and their correlations with IF. Self-citations and impact factors of nine top gastroenterology and hepatology journals were assessed during the seven recent years (2005-2011) through Journal Citation Reports (JCR, ISI Thomson Reuters). Although impact factors of all journals increased during the study, five out of nine journals increased the number of publications from 2005 to 2011. There was an increase in self-citation only in the journal of HEPATOLOGY (499 in 2005 vs. 707 in 2011). Impact factors of journals (6.5 ± 3.5) were positively correlated with total number of publications (248.6 ± 91.7) (R: 0.688, P impact factor without self-citation (6.08 ± 3.3) had a correlation (R: 0.672, P < 0.001) with the number of published items (248.6 ± 91.7). The number of articles and self-citation have definite effects on IF of a journal and because IF is the most prominent criterion for journal's quality measurement, it would be a good idea to consider factors affecting on IF such as self-citation.

  9. Citations for Randomized Controlled Trials in Sepsis Literature: The Halo Effect Caused by Journal Impact Factor.

    Science.gov (United States)

    Zhang, Zhongheng; Poucke, Sven Van

    2017-01-01

    Citations for randomized controlled trials (RCT) are important for the dissemination of study results. However, predictors of citations for RCTs have not been investigated. The study aimed to investigate the predictors of citations for RCTs in sepsis literature. RCTs that investigated the efficacy of treatment strategies on clinical outcomes in sepsis patients were included, and publication dates were restricted to the period from 2000 to 2016. Risk of bias was assessed using the Cochrane handbook for systematic reviews and interventions. A multivariable linear regression model was built to investigate the independent variables associated with total citations. In total, 160 RCTs met our inclusion criteria and were included for analysis. The median of total citations was 28.5 (IQR: 6-76). The journal impact factor (IF) for articles was 6.312 (IQR: 3.143-7.214). The dependent variable was transformed by the square root to improve normality and meet the assumption of homoscedasticity. The journal IF (coefficient: 0.2; 95% CI: 0.16, 0.25) was independently associated with total citations. Large samples were associated with more total citations (coefficient: 0.0026; 95% CI: 0.0013, 0.0039). The study demonstrated that the journal IF was a major determinant of the RCT's total citation number.

  10. Paraquat toxicity. (Latest citations from the Life Sciences Collection database). Published Search

    Energy Technology Data Exchange (ETDEWEB)

    1993-05-01

    The bibliography contains citations concerning the toxic effects of the herbicide paraquat on humans and animals. Topics include clinical and pathological findings, biochemical mechanisms, effects of oxygen, pulmonary effects of exposure, and effects on freshwater and marine organisms. The contamination of marijuana plants with paraquat is also considered. (Contains 250 citations and includes a subject term index and title list.)

  11. Citation Analysis for Collection Development: A Comparative Study of Eight Humanities Fields

    Science.gov (United States)

    Knievel, Jennifer E.; Kellsey, Charlene

    2005-01-01

    This study analyzes 9,131 citations from the 2002 volumes of journals in eight humanities fields: art, classics, history, linguistics, literature, music, philosophy, and religion. This study found that citation patterns varied widely among humanities disciplines. Due to these differences, it is important for librarians with humanities collection…

  12. Differences in citation frequency of clinical and basic science papers in cardiovascular research

    NARCIS (Netherlands)

    Opthof, T.

    2011-01-01

    In this article, a critical analysis is performed on differences in citation frequency of basic and clinical cardiovascular papers. It appears that the latter papers are cited at about 40% higher frequency. The differences between the largest number of citations of the most cited papers are even

  13. Citation Mining: Integrating Text Mining and Bibliometrics for Research User Profiling.

    Science.gov (United States)

    Kostoff, Ronald N.; del Rio, J. Antonio; Humenik, James A.; Garcia, Esther Ofilia; Ramirez, Ana Maria

    2001-01-01

    Discusses the importance of identifying the users and impact of research, and describes an approach for identifying the pathways through which research can impact other research, technology development, and applications. Describes a study that used citation mining, an integration of citation bibliometrics and text mining, on articles from the…

  14. Perspectives of EFL Doctoral Students on Challenges of Citations in Academic Writing

    Science.gov (United States)

    Jomaa, Nayef Jomaa; Bidin, Siti Jamilah

    2017-01-01

    Purpose: Citation is vital in academic writing but particularly challenging for novice writers who use English as a second or foreign language. While much is known about citations types and functions, scarce knowledge is available about what makes citing a complicated procedure. Hence, this study explores the difficulties in citing and integrating…

  15. Quantitative and Qualitative Analysis of Editor Behavior through Potentially Coercive Citations

    Directory of Open Access Journals (Sweden)

    Claudiu Herteliu

    2017-06-01

    Full Text Available How much is the h-index of an editor of a well-ranked journal improved due to citations which occur after his/her appointment? Scientific recognition within academia is widely measured nowadays by the number of citations or h-index. Our dataset is based on a sample of four editors from a well-ranked journal (impact factor, IF, greater than 2. The target group consists of two editors who seem to benefit by their position through an increased citation number (and subsequently h-index within the journal. The total amount of citations for the target group is greater than 600. The control group is formed by another set of two editors from the same journal whose relations between their positions and their citation records remain neutral. The total amount of citations for the control group is more than 1200. The timespan for which the citations’ pattern has been studied is 1975–2015. Previous coercive citations for a journal’s benefit (an increase of its IF has been indicated. To the best of our knowledge, this is a pioneering work on coercive citations for personal (editors’ benefit. Editorial teams should be aware about this type of potentially unethical behavior and act accordingly.

  16. Integrative vs. Non-Integrative Citations among Native and Nonnative English Writers

    Science.gov (United States)

    Rabab'ah, Ghaleb; Al-Marshadi, Ahmed

    2013-01-01

    This study investigates citation practices among native and nonnative English writers. Five Master EFL theses written by Arab EFL learners were compared to 5 Master EFL theses written by native speakers of English. Adopting Swales' (1990) categorization, the employed citation patterns were analyzed and categorized into two types: integral and…

  17. 1 CFR 21.23 - Parallel citations of Code and Federal Register.

    Science.gov (United States)

    2010-01-01

    ..., TRANSMITTAL, AND PROCESSING OF DOCUMENTS PREPARATION OF DOCUMENTS SUBJECT TO CODIFICATION General References § 21.23 Parallel citations of Code and Federal Register. For parallel reference, the Code of Federal... 1 General Provisions 1 2010-01-01 2010-01-01 false Parallel citations of Code and Federal Register...

  18. Citations of "ETR&D" and Related Journals, 1990-2004

    Science.gov (United States)

    Gall, James E.; Ku, Heng-Yu; Gurney, Keyleigh; Tseng, Hung-Wei; Yeh, Hsin-Te; Chen, Qin

    2010-01-01

    Scientific communication in the field of educational technology was examined by analyzing references from and citations to articles published in "Educational Technology Research and Development" ("ETR&D") for the period 1990-2004 with particular emphasis on other journals found in the citation record. Data were collected on the 369 core articles…

  19. Significant Signs: A Case Study of Citation Practices in Educational Research

    Science.gov (United States)

    Hansen, Michael

    2016-01-01

    Citations have a central role in the dynamic process of knowledge development and as measures of research performance--yet little is known about their role in educational research or the qualities they are assumed to measure. Based on a citation context analysis, this study shows how a paradigmatic reference within classroom research has been used…

  20. Information Use in History Research: A Citation Analysis of Master's Level Theses

    Science.gov (United States)

    Sherriff, Graham

    2010-01-01

    This article addresses the need for quantitative investigation into students' use of information resources in historical research. It reports the results of a citation analysis of more than 3,000 citations from master's level history theses submitted between 1998 and 2008 at a mid-sized public university. The study's results support the hypotheses…

  1. Who Is Citing Whom: Citation Network Analysis among HRD Publications from 1990 to 2007

    Science.gov (United States)

    Jo, Sung Jun; Jeung, Chang-Wook; Park, Sunyoung; Yoon, Hea Jun

    2009-01-01

    A citation network analysis among four journals in human resource development (HRD) was conducted to discover the major themes of published articles in HRD. A total of 1,410 articles from 1990 to 2007 were coded. Main path analysis, influence analysis, and reduced network analysis were conducted for citation network analysis. The key findings are…

  2. Scientific impact of studies published in temporarily available radiation oncology journals: a citation analysis.

    Science.gov (United States)

    Nieder, Carsten; Geinitz, Hans; Andratschke, Nicolaus H; Grosu, Anca L

    2015-01-01

    The purpose of this study was to review all articles published in two temporarily available radiation oncology journals (Radiation Oncology Investigations, Journal of Radiosurgery) in order to evaluate their scientific impact. From several potential measures of impact and relevance of research, we selected article citation rate because landmark or practice-changing research is likely to be cited frequently. The citation database Scopus was used to analyse number of citations. During the time period 1996-1999 the journal Radiation Oncology Investigations published 205 articles, which achieved a median number of 6 citations (range 0-116). However, the most frequently cited article in the first 4 volumes achieved only 23 citations. The Journal of Radiosurgery published only 31 articles, all in the year 1999, which achieved a median number of 1 citation (range 0-11). No prospective randomized studies or phase I-II collaborative group trials were published in these journals. Apparently, the Journal of Radiosurgery acquired relatively few manuscripts that were interesting and important enough to impact clinical practice. Radiation Oncology Investigations' citation pattern was better and closer related to that reported in several previous studies focusing on the field of radiation oncology. The vast majority of articles published in temporarily available radiation oncology journals had limited clinical impact and achieved few citations. Highly influential research was unlikely to be submitted during the initial phase of establishing new radiation oncology journals.

  3. Differences in citation frequency of clinical and basic science papers in cardiovascular research

    NARCIS (Netherlands)

    Opthof, Tobias

    In this article, a critical analysis is performed on differences in citation frequency of basic and clinical cardiovascular papers. It appears that the latter papers are cited at about 40% higher frequency. The differences between the largest number of citations of the most cited papers are even

  4. Social Gerontology--Integrative and Territorial Aspects: A Citation Analysis of Subject Scatter and Database Coverage

    Science.gov (United States)

    Lasda Bergman, Elaine M.

    2011-01-01

    To determine the mix of resources used in social gerontology research, a citation analysis was conducted. A representative sample of citations was selected from three prominent gerontology journals and information was added to determine subject scatter and database coverage for the cited materials. Results indicate that a significant portion of…

  5. Students Use More Books after Library Instruction: An Analysis of Undergraduate Paper Citations

    Science.gov (United States)

    Cooke, Rachel; Rosenthal, Danielle

    2011-01-01

    In fall 2008, students from first-year Composition I and upper-level classes at Florida Gulf Coast University participated in a citation analysis study. The citation pages of their research papers revealed that the students used more books, more types of sources, and more overall sources when a librarian provided instruction. When these results…

  6. An evaluation of impacts in "Nanoscience & nanotechnology:" Steps towards standards for citation analysis

    NARCIS (Netherlands)

    Leydesdorff, L.

    2013-01-01

    One is inclined to conceptualize impact in terms of citations per publication, and thus as an average. However, citation distributions are skewed, and the average has the disadvantage that the number of publications is used in the denominator. Using hundred percentiles, one can integrate the

  7. [Analysis of the impact of Archivos de Bronconeumología through the Science Citation Index].

    Science.gov (United States)

    García, F; Mayoralas, S; Dorgham, A; Granda, I; Perpiñá, M; Casan, P; Xaubet, A; Agustí, A G; Alvarez-Sala, J L

    2001-12-01

    To describe the impact factor of Archivos de Bronconeumología from 1997 until 2000 and to identify the patterns of citation of the journal and topics having the greatest impact. SCISEARCH was used to locate citations of articles published by Archivos de Bronconeumología between 1995 and 1999. The following data were collected for each article: year of publication, authors, journal, country of publication, language, specialty or specialties, institution(s), residence of the first author and topic. The impact factor was calculated as the ratio of citations received in one year by articles published in Archivos de Bronconeumología during the two previous years and the total number of articles published by Archivos de Bronconeumología over the two years under study. The impact factor of Archivos de Bronconeumología was 0.107 in 1997, 0.089 in 1998, 0.105 in 1999 and 0.119 in 2000. Citations were found in a wide range of source journals, with respiratory system publications having little weight. Citations were made mainly by Spanish authors (75%) and self-citation was restrained (21.1%). Topics related to tuberculosis and respiratory infections (23.6% of the citations received) and chronic obstructive pulmonary disease (12.5%) made the greatest impact. The impact factor of Archivos de Bronconeumología is modest, although higher than those of some other publications included in Journal Citation Reports.

  8. Determinants of the citation rate of medical research publications from a developing country.

    Science.gov (United States)

    Annalingam, Anupama; Damayanthi, Hasitha; Jayawardena, Ranil; Ranasinghe, Priyanga

    2014-01-01

    The number of citations received by an article is considered as an objective marker judging the importance and the quality of the research work. The present study aims to study the determinants of citations for research articles published by Sri Lankan authors. Papers were selectively retrieved from the SciVerse Scopus® (Elsevier Properties S.A, USA) database for 10 years from 1st January 1997 to 31st December 2006, of which 50% were selected for inclusion by simple random sampling. The primary outcome measure was citation rate (defined as the number of citations during the 2 subsequent years after publication). Citation data was collected using the SciVerse Scopus® Citation Analyzer and self citations were excluded. A linear regression analysis was performed with 'number of citations' as the continuous dependent variable and other independent variables. The number of publications has steadily increased during the period of study. Over three quarter of papers were published in international journals. More than half of publications were research studies (55.3%), and most of the research studies were descriptive cross-sectional studies (27.1%). The mean number of citations within 2 years of publication was 1.7 and 52.1% of papers were not cited within the first two years of publication. The mean number of citations for collaborative studies (2.74) was significantly higher than that of non-collaborative studies (0.66). The mean number of citations did not significantly change depending on whether the publication had a positive result (2.08) or not (2.92) and was also not influenced by the presence (2.30) or absence (1.99) of the main study conclusion in the title of the article. In the linear regression model, the journal rank, number of authors, conducting the study abroad, being a research study or systematic review/meta-analysis and having regional and/or international collaboration all significantly increased the number of citations. The journal rank, number

  9. Era Transmídia

    Directory of Open Access Journals (Sweden)

    Rodrigo Dias Arnaut

    2011-12-01

    Full Text Available A abordagem transmídia se mostra cada vez mais atual e interessante por integrar todos os conceitos de produção de conteúdos em uma única metodologia e processo de criação e distribuição. Atualmente, e cada vez mais, as pessoas, o público em geral é um potencial produtor de conteúdo nas novas mídias, seja através de uma simples câmera fotográfica, um telefone celular, um PC ou mesmo do mais sofisticado tablet. Nesta nova dinâmica, o mercado (conjunto de: audiência, mídia, concorrência e demais agentes apresenta novas plataformas de comuni-cação que, devido a sua abertura e amplo acesso, trazem consigo uma grande perda de controle do que é publi-cado e do próprio contexto originalmente planejado, pois a mídia espontânea e a interpretação do público criam novos caminhos para a história principal do projeto.A necessidade do mercado em estreitar relacionamento com seus clientes ou públicos (cada segmento de mercado é considerado um público diferente passa por uma grande transformação, que se implementada de forma impul-siva e despreparada, no que diz respeito à análise do público-alvo, aos formatos de distribuição e à mensagem enviada, pode acarretar na perda de oportunidades e propostas de comunicação. O foco dos projetos transmídia é utilizar  metodologias e  processos mais completos e abrangentes, do ponto de vista das áreas de criação de con-teúdo, tecnologia, marketing e outras, utilizando as melhores plataformas de mídia para o sucesso do projeto. De forma resumida o grupo de estudos em transmídia, #EraTransmídia, irá apresentar seus conceitos com o objetivo de proporcionar o engajamento social multiplataforma para resultados positivos.

  10. A Study on Developing and Refining a Large Citation Service System

    Directory of Open Access Journals (Sweden)

    Kwang-Young Kim

    2013-06-01

    Full Text Available Today, citation index information is used as an outcome scale of spreading technology and encouraging research. Article citation information is an important factor to determine the authority of the relevant author. Google Scholar uses the article citation information to organize academic article search results with a rank algorithm. For an accurate analysis of such important citation index information, large amounts of bibliographic data are required. Therefore, this study aims to build a fast and efficient system for large amounts of bibliographic data, and to design and develop a system for quickly analyzing cited information for that data. This study also aims to use and analyze citation data to be a basic element for providing various advanced services to the academic article search system.

  11. High-ranked social science journal articles can be identified from early citation information.

    Science.gov (United States)

    Stern, David I

    2014-01-01

    Do citations accumulate too slowly in the social sciences to be used to assess the quality of recent articles? I investigate whether this is the case using citation data for all articles in economics and political science published in 2006 and indexed in the Web of Science. I find that citations in the first two years after publication explain more than half of the variation in cumulative citations received over a longer period. Journal impact factors improve the correlation between the predicted and actual future ranks of journal articles when using citation data from 2006 alone but the effect declines sharply thereafter. Finally, more than half of the papers in the top 20% in 2012 were already in the top 20% in the year of publication (2006).

  12. Self-Enhancement in Scientific Research: The Self-citation Bias

    Directory of Open Access Journals (Sweden)

    Marc Brysbaert

    2011-08-01

    Full Text Available A typical psychology article contains 3 to 9 self-citations, depending on the length of the reference list (10% of all citations. In contrast, cited colleagues rarely receive more than 3 citations. This is what we call the self-citation bias: the preference researchers have to refer to their own work when they guide readers to the relevant literature. We argue that this finding is difficult to understand within the traditional, science-based view, which says that reference lists are there to help the reader. It is more easily understood within a social view of reference lists which argues that scientists form groups and that reference lists partly reflect well-known phenomena in social psychology and group dynamics. Within this view, the self-citation bias is a self-serving bias motivated by self-enhancement and self-promotion.

  13. Classic articles in Psychology in the Science Citation Index Expanded: A bibliometric analysis.

    Science.gov (United States)

    Ho, Yuh-Shan; Hartley, James

    2016-11-01

    Who today are the most highly cited psychologists listed in the Web of Science? This paper reports answers to this question by using the Science Citation Index Expanded to find out. This index covers over 280,350 documents in the Psychology category of the Web of Science from 1900 to 2013 and lists the most highly cited papers published between 1927 and 2012. For example, in 2013, an article published by Jacob Cohen in 1992 obtained (1) the highest ranking with 1,068 citations, (2) the highest for total citations per year, and (3) was ranked 3rd for the total number of citations since publication by 2013. New technology thus provides a seismic shift in the ways that we can obtain and analyse data like these. Indeed, the results for the top 10 articles indicate that practical and methodological papers now receive more citations than the more theoretical papers usually found in earlier surveys. © 2015 The British Psychological Society.

  14. Citation analysis in health care sciences. Innovative investigation or seductive pseudo-science?

    Science.gov (United States)

    Rigby, M

    2014-01-01

    Citations of scientific papers in health care have become a subject of interest, as in any scientific sector. However, such a metric, while useful in a simple way, can become subject to too much credibility, and therefore to advanced analyses which are not soundly grounded even if methodologically valid. The objective was to contextualise citation indices in health care science, juxtaposed with a parallel analytic paper. The literature was reviewed and set against the objectives of metrics of literature and of researchers. The strengths and weaknesses of citation indices in the health sector were identified, with practical examples of perverse effects, and compared with the core objectives of health care development. Citation indices in health care science have a value, but this is limited to giving a broad overview. Other measures of effectiveness, including impact on education, on health care development, and on stimulation of applied developments, are needed rather than spuriously scientific advanced analyses of citation counts.

  15. Currencies of Science: discussing disciplinary “exchange rates” for citations and Mendeley readership

    Energy Technology Data Exchange (ETDEWEB)

    Costas, R.; Perianes-Rodriguez, A.; Ruiz-Castillo, J.

    2016-07-01

    In 1998 Garfield stated that “[t]he Mertonian description of normal science describes citations as the currency of science. Scientists make payments, in the form of citations, to their preceptors”. The idea of citations as a currency of science was also discussed by Wouters (1999) who suggested that the “role of the citation might also be compared with that of money, especially if the evaluative use of scientometrics is taken into account. Whenever the value of an article is expressed in its citation frequency, the citation is probably the most important unit of a ‘currency of science’”. Thus, citations have been seen as currency able to reward scientists for their work and scientific merit, being an integral part, together with authorship and acknowledgements, of the so-called “reward triangle” (Cronin & Weaver, 1995)2. This role of citations as main currency in evaluative scientometrics has gone unchallenged until recently. The emergence of new ways of measuring the reception of scientific publications by different audiences in the form of the so-called “altmetrics” (Haustein, et al. 2015a; Priem, et al. 2010) probably represents the most important attempt of expanding the system of currencies of science. However, research on altmetrics suggest that there are critical differences with citations: in coverage (Thelwall, et al. 2013), main characteristics (Haustein, et al., 2015), correlations (Costas, et al. 2015b; Haustein, et al. 2014), and interpretation (Haustein et al., 2016). These results essentially highlight the limited potential of most of these metrics as realistic alternatives to citations. (Author)

  16. Characteristics and longevity of electronic citations in four leading biomedical journals in Spain.

    Science.gov (United States)

    Valcárcel de Laiglesia, María Ángel; Alfonso, Fernando; Miró, Òscar; Casademont, Jordi; Burbano Santos, Pablo; Burillo-Putze, Guillermo; Fernández Pérez, Cristina; Martín-Sánchez, Francisco Javier

    2014-10-01

    We aimed to determine the frequency of use and accessibility over time of electronic citations in Revista Española de Cardiología and 3 other Spanish biomedical journals, and to identify the factors that influence the accessibility and retrievability of these links. A cross-sectional, descriptive study was performed of all the references in articles published in the first issue of each even year from 2002 to 2012 in selected journals. Data were collected on the journal, publication, references, and links. The variables analyzed were the percentage of articles with at least 1 electronic citation, the percentage of electronic citations with respect to the total number of citations in the full sample, and the percentages of link accessibility and retrievability. We included 377 articles, of which 73 (19.4%; 95% confidence interval, 15.2%-23.5%) had at least 1 electronic citation, and a total of 7077 references, of which 164 (2.3%; 95% confidence interval, 2.0%-2.7%) were electronic citations. Revista Española de Cardiología had 17 (15.2%) and 38 (1.3%), respectively. Use of electronic citations significantly increased over time (linear tendency, P citations (27.5%; 95% confidence interval, 20.3%-34.6%) had complete additional information. Retrievability was significantly associated with the amount of additional information (linear tendency, P citations are increasingly used in some Spanish biomedical journals. Access to electronic citations is lost over time, and the probability of its retrieval is associated with the existence of additional information. Copyright © 2014 Sociedad Española de Cardiología. Published by Elsevier Espana. All rights reserved.

  17. PHOBOS in the LHC era

    Energy Technology Data Exchange (ETDEWEB)

    Steinberg, Peter, E-mail: peter.steinberg@bnl.gov

    2015-01-15

    The PHOBOS experiment ran at the RHIC collider from 2000 to 2005, under the leadership of Wit Busza. These proceedings summarize selected PHOBOS results, highlighting their continuing relevance amidst the wealth of new results from the lead–lead program at the Large Hadron Collider (LHC)

  18. Education Tax Credits in a Post-"Zelman" Era: Legal, Political, and Policy Alternatives to Vouchers?

    Science.gov (United States)

    Huerta, Luis A.; d'Entremont, Chad

    2007-01-01

    This article examines an emerging preference for education tax credit programs in a post-"Zelman" era. First, the authors detail the origin of tax credits and the types of existing plans. Second, they review the assumptions underlying the supposed advantages that may favor tax credits as a feasible alternative to vouchers. Third, they…

  19. Turkish Publications in Science Citation Index and Citation Index-Expanded Indexed Journals in the Field of Anaesthesiology: A Bibliographic Analysis.

    Science.gov (United States)

    Özbilgin, Şule; Hancı, Volkan

    2017-02-01

    Our study aimed to assess Turkish publications in Science Citation Index (SCI) and Science Citation Index Expanded (SCI-E) indexed journals in the field of 'anaesthesiology'. Journals related to 'anaesthesiology' in the Science Citation Index-Expanded database of 'Thomson Reuter Web of Science' were searched. The search engine of Institute for Scientific Information (ISI) Web of Science (WoS) was used in the advanced mode by typing 'IS=ISSN number' to identify publications in the journal. By typing 'IS=ISSN number AND CU=Turkey', Turkish papers on anaesthesiology were found. If Turkish and non-Turkish authors had collaborated, the article was included in the search when the corresponding author had provided a Turkey-based address. The catalogue information and statistics were used to determine Turkish publications as the percentage of total publications and the annual mean number of Turkish publications. In WoS, 'SU=anesthesiology' was used to determine the number, country, year and topic distributions of publications from 1975 to date and within the last 10 years. The citation numbers and h-indices were determined based on the country for publications within the last 10 years. From 1975 to the early 2000s Turkey was 20th in the list of countries with highest number of publications on anaesthesiology, however in the last 10 years Turkey moved up to 18th place. Its mean citation number has been 4.64, and it remains the 2nd lowest country pertaining to citations among the 22 countries with the most number of publications. According to the percentage of publications in the field of anaesthesiology, the journals with highest rate of Turkish publications were Revista Brasileira de Anestesiologia, European Journal of Anaesthesiology and Journal of Anesthesia. In the field of anaesthesiology, the highest number of articles from Turkey was published in Revista Brasileira de Anestesiologia, European Journal of Anaesthesiology and Journal of Anesthesia. The mean citation

  20. Citation searching: a systematic review case study of multiple risk behaviour interventions.

    Science.gov (United States)

    Wright, Kath; Golder, Su; Rodriguez-Lopez, Rocio

    2014-06-03

    The value of citation searches as part of the systematic review process is currently unknown. While the major guides to conducting systematic reviews state that citation searching should be carried out in addition to searching bibliographic databases there are still few studies in the literature that support this view. Rather than using a predefined search strategy to retrieve studies, citation searching uses known relevant papers to identify further papers. We describe a case study about the effectiveness of using the citation sources Google Scholar, Scopus, Web of Science and OVIDSP MEDLINE to identify records for inclusion in a systematic review.We used the 40 included studies identified by traditional database searches from one systematic review of interventions for multiple risk behaviours. We searched for each of the included studies in the four citation sources to retrieve the details of all papers that have cited these studies.We carried out two analyses; the first was to examine the overlap between the four citation sources to identify which citation tool was the most useful; the second was to investigate whether the citation searches identified any relevant records in addition to those retrieved by the original database searches. The highest number of citations was retrieved from Google Scholar (1680), followed by Scopus (1173), then Web of Science (1095) and lastly OVIDSP (213). To retrieve all the records identified by the citation tracking searching all four resources was required. Google Scholar identified the highest number of unique citations.The citation tracking identified 9 studies that met the review's inclusion criteria. Eight of these had already been identified by the traditional databases searches and identified in the screening process while the ninth was not available in any of the databases when the original searches were carried out. It would, however, have been identified by two of the database search strategies if searches had been

  1. Which percentile-based approach should be preferred for calculating normalized citation impact values? An empirical comparison of five approaches including a newly developed citation-rank approach (P100)

    NARCIS (Netherlands)

    Bornmann, L.; Leydesdorff, L.; Wang, J.

    2013-01-01

    For comparisons of citation impacts across fields and over time, bibliometricians normalize the observed citation counts with reference to an expected citation value. Percentile-based approaches have been proposed as a non-parametric alternative to parametric central-tendency statistics. Percentiles

  2. Communicating mathematics in the digital era

    CERN Document Server

    Borwein, Jonathan; Rodrigues, Jose Francisco

    2008-01-01

    The digital era has dramatically changed the ways that researchers search, produce, publish, and disseminate their scientific work. These processes are still rapidly evolving due to improvements in information science, new achievements in computer science technologies, and initiatives such as DML and open access journals, digitization projects, scientific reference catalogs, and digital repositories. These changes have prompted many mathematicians to play an active part in the developments of the digital era, and have led mathematicians to promote and discuss new ideas with colleagues from other fields, such as technology developers and publishers. This book is a collection of contributions by key leaders in the field, offering the paradigms and mechanisms for producing, searching, and exploiting scientific and technical scholarship in mathematics in the digital era.

  3. EndNote and Reference Manager Citation formats compared to "instructions to authors" in top medical journals.

    Science.gov (United States)

    Brahmi, Frances A; Gall, Carole

    2006-01-01

    The study compared citation format in EndNote version 7 and Reference Manager version 11 with the citation format for references found in the instructions to authors from the most significant medical literature. The resulting information should be very useful to those who depend on citation management software to format and organize their references for publication in medicine, and librarians and others who teach the use of citation management software.

  4. Understanding real-world adherence in the directly acting antiviral era: A prospective evaluation of adherence among people with a history of drug use at a community-based program in Toronto, Canada.

    Science.gov (United States)

    Mason, Kate; Dodd, Zoë; Guyton, Mary; Tookey, Paula; Lettner, Bernadette; Matelski, John; Sockalingam, Sanjeev; Altenberg, Jason; Powis, Jeff

    2017-09-01

    Direct acting antiviral (DAA) treatments for Hepatitis C (HCV) are now widely available with sustained virologic response (SVR) rates of >90%. A major predictor of response to DAAs is adherence, yet few real-world studies evaluating adherence among marginalized people who use drugs and/or alcohol exist. This study evaluates patterns and factors associated with non-adherence among marginalized people with a history of drug use who were receiving care through a primary care, community-based HCV treatment program where opiate substitution is not offered on-site. Prospective evaluation of chronic HCV patients initiating DAA treatment. Self-report medication adherence questionnaires were completed weekly. Pre/post treatment questionnaires examined socio-demographics, program engagement and substance use. Missing adherence data was counted as a missed dose. Of the 74 participants, who initiated treatment, 76% were male, the average age was 54 years, 69% reported income from disability benefits, 30% did not have stable housing and only 24% received opiate substitution therapy. Substance use was common in the month prior to treatment initiation with, 11% reported injection drug use, 30% reported non-injection drug use and 18% moderate to heavy alcohol use. The majority (85%) were treatment naïve, with 76% receiving sofosbuvir/ledipasvir (8-24 weeks) and 22% Sofosbuvir/Ribarvin (12-24 weeks). The intention to treat proportion with SVR12 was 87% (60/69). In a modified ITT analysis (excluding those with undetectable RNA at end of treatment), 91% (60/66) achieved SVR12. Overall, 89% of treatment weeks had no missed doses. 41% of participants had at least one missed dose. In multivariate analysis the only factor independently associated with weeks with missed doses was moderate to heavy alcohol use (p=0.05). This study demonstrates that strong adherence and SVR with DAAs is achievable, with appropriate supports, even in the context of substance use, and complex health

  5. Comparison of Journal Self-Citation Rates between Some Chinese and Non-Chinese International Journals

    Science.gov (United States)

    Yang, Zu-Guo; Gao, Feng; Zhang, Chun-Ting

    2012-01-01

    Background The past 3 decades have witnessed a boost in science development in China; in parallel, more and more Chinese scientific journals are indexed by the Journal Citation Reports issued by Thomson Reuters (SCI). Evaluation of the performance of these Chinese SCI journals is necessary and helpful to improve their quality. This study aimed to evaluate these journals by calculating various journal self-citation rates, which are important parameters influencing a journal impact factor. Methodology/Principal Findings We defined three journal self-citation rates, and studied these rates for 99 Chinese scientific journals, almost exhausting all Chinese SCI journals currently available. Likewise, we selected 99 non-Chinese international (abbreviated as ‘world’) journals, with each being in the same JCR subject category and having similar impact factors as their Chinese counterparts. Generally, Chinese journals tended to be higher in all the three self-citation rates than world journal counterparts. Particularly, a few Chinese scientific journals had much higher self-citation rates. Conclusions/Significance Our results show that generally Chinese scientific journals have higher self-citation rates than those of world journals. Consequently, Chinese scientific journals tend to have lower visibility and are more isolated in the relevant fields. Considering the fact that sciences are rapidly developing in China and so are Chinese scientific journals, we expect that the differences of journal self-citation rates between Chinese and world scientific journals will gradually disappear in the future. Some suggestions to solve the problems are presented. PMID:23173041

  6. Are shorter article titles more attractive for citations? Cross-sectional study of 22 scientific journals.

    Science.gov (United States)

    Habibzadeh, Farrokh; Yadollahie, Mahboobeh

    2010-04-01

    To investigate the correlation between the length of the title of a scientific article and the number of citations it receives, in view of the common editorial call for shorter titles. Title and the number of citations to all articles published in 2005 in 22 arbitrarily chosen English-language journals (n=9031) were retrieved from citation database Scopus. The 2008 journal impact factors of these 22 journals were also retrieved from Thomson Reuters' Journal Citation Report (JCR). Assuming the article title length as the independent variable, and the number of citations to the article as the dependent variable, a linear regression model was applied. The slope of the regression line for some journals (n=6, when titles were measured in characters but 7 when titles were measured in words) was negative - none was significantly different from 0. The overall slope for all journals was 0.140 (when titles were measured in characters) and 0.778 (when titles were measured in words), which is significantly different from 0 (Ptitles received more citations - Spearman rho=0.266 - when titles were measured in characters, and rho=0.244 when titles were measured in words (P10 and for 2 out of 14 journals with impact factor titles seem to be associated with higher citation rates. This association is more pronounced for journals with high impact factors. Editors who insist on brief and concise titles should perhaps update the guidelines for authors of their journals and have more flexibility regarding the length of the title.

  7. Citation parameters of contact lens-related articles published in the ophthalmic literature.

    Science.gov (United States)

    Cardona, Genís; Sanz, Joan P

    2014-09-01

    This study aimed at exploring the citation parameters of contact lenses articles published in the Ophthalmology thematic category of the Journal Citation Reports (JCR). The Thompson Reuters Web of Science database was accessed to record bibliometric information and citation parameters of all journals listed under the Ophthalmology area of the 2011 JCR edition, including the journals with main publication interests in the contact lens field. In addition, the same database was used to unveil all contact lens-related articles published in 2011 in the same thematic area, whereupon differences in citation parameters between those articles published in contact lens and non-contact lens-related journals were explored. Significant differences in some bibliometric indicators such as half-life and overall citation count were found between contact lens-related journals (shorter half-life and fewer citations) and the median values for the Ophthalmology thematic area of the JCR. Visual examination of all Ophthalmology journals uncovered a total of 156 contact lens-related articles, published in 28 different journals, with 27 articles each for Contact Lens & Anterior Eye, Eye & Contact Lens, and Optometry and Vision Science. Significant differences in citation parameters were encountered between those articles published in contact lens and non-contact lens source journals. These findings, which disclosed contact lenses to be a fertile area of research, may be of interest to researchers and institutions. Differences in bibliometric indicators are of relevance to avoid unwanted bias when conducting between- and within-discipline comparisons of articles, journals, and researchers.

  8. The highly-cited Electrocardiogram-related articles in science citation index expanded: characteristics and hotspots.

    Science.gov (United States)

    Yang, Xianglin; Gu, Jiaojiao; Yan, Hong; Xu, Zhi; Ren, Bing; Yang, Yaming; Yang, Xiaodong; Chen, Qi; Tan, Shaohua

    2014-01-01

    We used bibliometric analysis methodology in the expanded Science Citation Index to identify highly-cited electrocardiogram (ECG)-related articles with total citations (TC2012) exceeding 100 from the publication year to 2012. Web of Science search tools were used to identify the highly-cited articles. The aspects analyzed for highly cited publications included effect of time on citation analysis, journals and Web of Science categories, number of authors per publication, originating institutions and countries, total citation and total citation per year life cycles of articles (C2012) and research hotspots. Results showed that a total of 467 electrocardiogram-related publications were regarded as the highly-cited publications. TC2012 ranged from 101 to 2879, with 215 as the average number of citations. No highly-cited publications have emerged yet during the first two years of the present 2010 Decade. All 11 countries and institutions originating highly-cited ECG-related publications were developed countries, USA in 9 of them. Four subject categories were identified as hotspots by total citations TC2012 and C2012: atrial fibrillation, long QT syndrome, angina and myocardial infarction, and risk factor analysis and health evaluation. Copyright © 2014 Elsevier Inc. All rights reserved.

  9. Accuracy of citation and quotation in foot and ankle surgery journals.

    Science.gov (United States)

    Luo, Ma; Li, Charles Chuan; Molina, Domingo; Andersen, Clark R; Panchbhavi, Vinod K

    2013-07-01

    A recent review of technical editing of research suggests that over one third of references cited in articles in medical journals have some inaccuracies and one fifth of quotations to references in these articles are not accurate. Two hundred and forty-nine citation references and 408 quotes from 25 articles published in 5 orthopaedic journals were randomly selected to determine referencing accuracy. The presence of citation errors was examined by 1 of the authors while the presence of quotation errors was determined by 2 of the authors. Full copies of articles as well as the references were obtained to compare the accuracies. The total citation error rate was 41% (103 out of 249 references), and the total quotation error rate was 20% (80 out of 408 quotes) for the 5 orthopaedic journals. Citation and quotation errors were still relatively common in orthopaedic journals. While we did not identify any factors associated with citation and quotation errors, the use of technical editing may reduce the amount of citation errors. Readers and authors should be aware that many citations of studies are inaccurate and one should review the original source if it is to be used in another publication or to guide clinical treatment.

  10. Clinical reports of pulmonary metastasectomy for colorectal cancer: a citation network analysis.

    Science.gov (United States)

    Fiorentino, F; Vasilakis, C; Treasure, T

    2011-03-29

    Pulmonary metastasectomy for colorectal cancer is a commonly performed and well-established practice of ∼50 years standing. However, there have been no controlled studies, randomised or otherwise. We sought to investigate the evidence base that has been used in establishing its status as a standard of care. Among 51 papers used in a recent systematic review and quantitative synthesis, a citation network analysis was performed. A total of 344 publications (the 51 index papers and a further 293 cited in them) constitute the citation network. The pattern of citation is that of a citation cascade. Specific analyses show the frequent use of historical or landmark papers, which add authority. Papers expressing an opposing viewpoint are rarely cited. The citation network for this common and well-established practice provides an example of selective citation. This pattern of citation tends to escalate belief in a clinical practice even when it lacks a high-quality evidence base and may create an impression of more authority than is warranted.

  11. Chinese librarianship in the digital era

    CERN Document Server

    Fang, Conghui

    2013-01-01

    The library in China has been transformed by rapid socioeconomic development, and the proliferation of the Internet. The issues faced by Chinese libraries andlibrarians are those faced by library practitioners more globally, however, China also has its own unique set of issues in the digital era, including developmental imbalance between East and West, urban and rural areas, and availability of skilled practitioners. Chinese Librarianship in the Digital Era is the first book on Chinese libraries responding to these issues, and more.The first part of the book places discussion in historical con

  12. Chemical and biological warfare: Biology, chemistry, and toxicology. (Latest citations from the NTIS bibliographic database). Published Search

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-11-01

    The bibliography contains citations concerning the physiological effects, physicochemical effects, and toxicology of chemical and biological warfare agents. Citations discuss toxic chemicals, chemical agent simulants, detoxification and decontamination, environmental toxicity, and land pollution. Detection techniques and warning systems are examined in a separate bibliography. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  13. 29 CFR 2700.20 - Notice of contest of a citation or order issued under section 104 of the Act.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Notice of contest of a citation or order issued under... MINE SAFETY AND HEALTH REVIEW COMMISSION PROCEDURAL RULES Contests of Citations and Orders § 2700.20 Notice of contest of a citation or order issued under section 104 of the Act. (a) Who may contest. (1) An...

  14. How to improve the prediction based on citation impact percentiles for years shortly after the publication date?

    NARCIS (Netherlands)

    Bornmann, L.; Leydesdorff, L.; Wang, J.

    2014-01-01

    The findings of Bornmann, Leydesdorff, and Wang (2013b) revealed that the consideration of journal impact improves the prediction of long-term citation impact. This paper further explores the possibility of improving citation impact measurements on the base of a short citation window by the

  15. 75 FR 49379 - Correction to Internal Citation of “Extremely Flammable Solid” and “Flammable Solid”

    Science.gov (United States)

    2010-08-13

    ... COMMISSION 16 CFR Part 1500 Correction to Internal Citation of ``Extremely Flammable Solid'' and ``Flammable... for small packages, minor hazards, and special circumstances to correct internal citations to the... 1500 to read as follows: PART 1500-- 0 1. The authority citation for part 1500 continues to read as...

  16. 40 CFR 152.95 - Citation of all studies in the Agency's files pertinent to a specific data requirement.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Citation of all studies in the Agency... PROCEDURES Procedures To Ensure Protection of Data Submitters' Rights § 152.95 Citation of all studies in the... for a data requirement by citation of all studies in the Agency's files pertinent of that data...

  17. 29 CFR 1903.18 - Failure to correct a violation for which a citation has been issued.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 5 2010-07-01 2010-07-01 false Failure to correct a violation for which a citation has... SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR INSPECTIONS, CITATIONS AND PROPOSED PENALTIES § 1903.18 Failure to correct a violation for which a citation has been issued. (a) If an inspection...

  18. Construction of a Pragmatic Base Line for Journal Classifications and Maps Based on Aggregated Journal-Journal Citation Relations

    NARCIS (Netherlands)

    Leydesdorff, L.; Bornmann, L.; Zhou, P.

    2016-01-01

    A number of journal classification systems have been developed in bibliometrics since the launch of the Citation Indices by the Institute of Scientific Information (ISI) in the 1960s. These systems are used to normalize citation counts with respect to field-specific citation patterns. The best known

  19. Corpus and Method for Identifying Citations in Non-Academic Text (Open Access, Publisher’s Version)

    Science.gov (United States)

    2014-05-31

    scien - tific research. Extracting and analyzing citations in non- academic text can improve citation analysis by identifying technical trends earlier...digital docu- ments. In Proceedings of the Asian Digital Library Confer- ence, pages 47–62. Eugene Garfield. 1972. Citation analysis as a tool in journal

  20. Citation analysis with medical subject Headings (MeSH) using the Web of Knowledge: A new routine

    NARCIS (Netherlands)

    Leydesdorff, L.; Opthof, T.

    2013-01-01

    Citation analysis of documents retrieved from the Medline database (at the Web of Knowledge) has been possible only on a case-by-case basis. A technique is presented here for citation analysis in batch mode using both Medical Subject Headings (MeSH) at the Web of Knowledge and the Science Citation