From gjemma.derrick at SYDNEY.EDU.AU Wed Jun 9 19:35:27 2010 From: gjemma.derrick at SYDNEY.EDU.AU (Gemma Derrick) Date: Thu, 10 Jun 2010 09:35:27 +1000 Subject: Studies investigating the refusal rates of peer reviewing in journals Message-ID: Dear All, We are wondering if someone would be able to help us locate a reference regarding the refusal rates in peer reviewing in journals, or in other words, how many potential reviewers decline the invitation to review a paper or a research proposal. Does anyone know of a study that investigated this? Looking forward to your replies. Kind regards, Gjemma Gjemma Derrick| BSc (Hons) MSc PhD (ANU) Sydney Medical School | School of Public Health The University of Sydney Room 226a Edward Ford Building A27 | The University of Sydney | NSW | 2006 T + 61 2 9114 1226 | F + 61 2 9351 7420 | M + 61 421 343 536 E gjemma.derrick at sydney.edu.au | W http://www.health.usyd.edu.au CRICOS 00026A This email plus any attachments to it are confidential and are subject to a claim for privilege. Any unauthorised use is strictly prohibited. If you receive this email in error, please delete it and any attachments. -------------- next part -------------- An HTML attachment was scrubbed... URL: From jzus at ZJU.EDU.CN Thu Jun 10 00:03:17 2010 From: jzus at ZJU.EDU.CN (JZUS) Date: Thu, 10 Jun 2010 12:03:17 +0800 Subject: Studies investigating the refusal rates of peer reviewing in journals Message-ID: Dear Dr. Gemma Derrick, We did a rought investigation about this topic. Yes, since Journal of Zhejiang University-SCIENCE started the international peer review, it has been almost for 7 years. You can visit our website to see more information about the international reviewers list ( http://www.zju.edu.cn/jzus/reviewer.php ) that will show you much more interesting information . First of all, we have to suppose the referee received the invitation letter, in this condition, at the early three years (2003-2005), the refusal rates was about 70%; However since 2005, the refusal rates was reduced to about 40%; which meand our journal's referees accepting review invitation rate is just increasing year by year. Of course, we have to admit the refusal rates still keep at about 25%, and we analysed the reasons are: 1. They are busy without time for the peer reviewing, but they will answer the editor, and recommend others; 2. They are not intersting in our journals or papers, and they usually did not answer anything (about 8 % since 2008) 3. They are not familiar to this thin topic even though they are in this area,but they will answer the editor or recommend others; Of course, we are collecting the detail data from our EM systerm and keeped record from JZUS(A/B/C),maybe someday, we will publish the research report. Thanks for your attention to the rough analysis, and also welcome your all visit our journals website (http://www.zju.edu.cn/jzus ) for more information, thanks. Sincerely, Helen ZHANG, Managing Editor of JZUS(A/B/C) http://www.zju.edu.cn/jzus http://www.springerlink.com +86-571-87952276 2010-06-10 ======= 2010-06-10 09:35:00 You wrote in your mail:======= >Adminstrative info for SIGMETRICS (for example unsubscribe): >http://web.utk.edu/~gwhitney/sigmetrics.html > >Dear All, > > > >We are wondering if someone would be able to help us locate a reference >regarding the refusal rates in peer reviewing in journals, or in other >words, how many potential reviewers decline the invitation to review a >paper or a research proposal. > > > >Does anyone know of a study that investigated this? > > > >Looking forward to your replies. > > > >Kind regards, > >Gjemma > > > >Gjemma Derrick| BSc (Hons) MSc PhD (ANU) >Sydney Medical School | School of Public Health >The University of Sydney >Room 226a Edward Ford Building A27 | The University of Sydney | NSW | >2006 >T + 61 2 9114 1226 | F + 61 2 9351 7420 | M + 61 421 343 536 >E gjemma.derrick at sydney.edu.au | W http://www.health.usyd.edu.au > > >CRICOS 00026A >This email plus any attachments to it are confidential and are subject >to a claim for privilege. Any unauthorised use is strictly prohibited. >If you receive this email in error, please delete it and any >attachments. > > = = = = = = = = = = = = = = = = = = = = From RogerBrumback at CREIGHTON.EDU Thu Jun 10 04:58:02 2010 From: RogerBrumback at CREIGHTON.EDU (Brumback, Roger A.) Date: Thu, 10 Jun 2010 03:58:02 -0500 Subject: Studies investigating the refusal rates of peer reviewing in journals In-Reply-To: A Message-ID: In the May 2010 issue of the JOURNAL OF CHILD NEUROLOGY, Lorraine Ferris (an officer of WAME -- World Association of Medical Editors) and I published an editorial entitled "Academic Merit, Promotion, and Journal Peer Reviewing: The Role of Academic Institutions In Providing Proper Recognition " [J Child Neurol 2010; 25: 538-540] (http://jcn.sagepub.com/cgi/content/refs/25/5/538). We included some information on this subject. Roger A. Brumback, M.D. Editor-in-Chief, Journal of Child Neurology Creighton University Medical Center Omaha, Nebraska, USA __________________________________________________________________________________ From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Gemma Derrick Sent: Wednesday, June 09, 2010 6:35 PM To: SIGMETRICS at LISTSERV.UTK.EDU Subject: [SIGMETRICS] Studies investigating the refusal rates of peer reviewing in journals We are wondering if someone would be able to help us locate a reference regarding the refusal rates in peer reviewing in journals, or in other words, how many potential reviewers decline the invitation to review a paper or a research proposal. Does anyone know of a study that investigated this? Looking forward to your replies. Kind regards, Gjemma Gjemma Derrick| BSc (Hons) MSc PhD (ANU) Sydney Medical School | School of Public Health The University of Sydney Room 226a Edward Ford Building A27 | The University of Sydney | NSW | 2006 T + 61 2 9114 1226 | F + 61 2 9351 7420 | M + 61 421 343 536? E gjemma.derrick at sydney.edu.au? |?W http://www.health.usyd.edu.au CRICOS 00026A This email plus any attachments to it are confidential and are subject to a claim for privilege. Any unauthorised use is strictly prohibited. If you receive this email in error, please delete it and any attachments. From jzus at ZJU.EDU.CN Thu Jun 10 20:34:50 2010 From: jzus at ZJU.EDU.CN (JZUS) Date: Fri, 11 Jun 2010 08:34:50 +0800 Subject: Studies investigating the refusal rates of peer reviewing in journals Message-ID: In "Learned Publishing, Vol 23,No.2 Aril 2010, titled "Reliability of reviewers' ratings when using public peer review: a case study" that would be interested in this topic, please online http://www.alpsp.org/ngen_public/default.asp?ID=310&groupid=196&groupname=Research+%26+Publications to search this paper, thanks. Helen ZHang, managing editor of JZUS(A/B/C) Editorial Board Member of Learned Publishing VP, Society of China University Journals in Natural Science jzus at zju.edu.cn http://www.zju.edu.cn/jzus http://www.springerlink.com +86-571-87952276 2010-06-11 ======= 2010-06-10 03:58:00 You wrote in your mail:======= >Adminstrative info for SIGMETRICS (for example unsubscribe): >http://web.utk.edu/~gwhitney/sigmetrics.html > >In the May 2010 issue of the JOURNAL OF CHILD NEUROLOGY, Lorraine Ferris (an officer of WAME -- World Association of Medical Editors) and I published an editorial entitled "Academic Merit, Promotion, and Journal Peer Reviewing: The Role of Academic Institutions In Providing Proper Recognition " [J Child Neurol 2010; 25: 538-540] (http://jcn.sagepub.com/cgi/content/refs/25/5/538). We included some information on this subject. > >Roger A. Brumback, M.D. >Editor-in-Chief, Journal of Child Neurology >Creighton University Medical Center >Omaha, Nebraska, USA > > >__________________________________________________________________________________ >From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Gemma Derrick >Sent: Wednesday, June 09, 2010 6:35 PM >To: SIGMETRICS at LISTSERV.UTK.EDU >Subject: [SIGMETRICS] Studies investigating the refusal rates of peer reviewing in journals > >Adminstrative info for SIGMETRICS (for example unsubscribe): http://web.utk.edu/~gwhitney/sigmetrics.html >Dear All, > >We are wondering if someone would be able to help us locate a reference regarding the refusal rates in peer reviewing in journals, or in other words, how many potential reviewers decline the invitation to review a paper or a research proposal. > >Does anyone know of a study that investigated this? > >Looking forward to your replies. > >Kind regards, >Gjemma > >Gjemma Derrick| BSc (Hons) MSc PhD (ANU) >Sydney Medical School | School of Public Health >The University of Sydney >Room 226a Edward Ford Building A27 | The University of Sydney | NSW | 2006 >T + 61 2 9114 1226 | F + 61 2 9351 7420 | M + 61 421 343 536? >E gjemma.derrick at sydney.edu.au? |?W http://www.health.usyd.edu.au > >CRICOS 00026A >This email plus any attachments to it are confidential and are subject to a claim for privilege. Any unauthorised use is strictly prohibited. If you receive this email in error, please delete it and any attachments. = = = = = = = = = = = = = = = = = = = = From jzus at ZJU.EDU.CN Thu Jun 10 20:36:29 2010 From: jzus at ZJU.EDU.CN (JZUS) Date: Fri, 11 Jun 2010 08:36:29 +0800 Subject: Studies investigating the refusal rates of peer reviewing in journals Message-ID: In "Learned Publishing, Vol 23,No.2 Aril 2010, titled "Reliability of reviewers' ratings when using public peer review: a case study" that would be interested in this topic, please online http://www.alpsp.org/ngen_public/default.asp?ID=310&groupid=196&groupname=Research+26+Publications to search this paper, thanks. Helen ZHang, managing editor of JZUS(A/B/C) Editorial Board Member of Learned Publishing VP, Society of China University Journals in Natural Science jzus at zju.edu.cn http://www.zju.edu.cn/jzus http://www.springerlink.com +86-571-87952276 2010-06-11 ======= 2010-06-10 03:58:00 You wrote in your mail:======= >Adminstrative info for SIGMETRICS (for example unsubscribe): >http://web.utk.edu/~gwhitney/sigmetrics.html > >In the May 2010 issue of the JOURNAL OF CHILD NEUROLOGY, Lorraine Ferris (an officer of WAME -- World Association of Medical Editors) and I published an editorial entitled "Academic Merit, Promotion, and Journal Peer Reviewing: The Role of Academic Institutions In Providing Proper Recognition " [J Child Neurol 2010; 25: 538-540] (http://jcn.sagepub.com/cgi/content/refs/25/5/538). We included some information on this subject. > >Roger A. Brumback, M.D. >Editor-in-Chief, Journal of Child Neurology >Creighton University Medical Center >Omaha, Nebraska, USA > > >__________________________________________________________________________________ >From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Gemma Derrick >Sent: Wednesday, June 09, 2010 6:35 PM >To: SIGMETRICS at LISTSERV.UTK.EDU >Subject: [SIGMETRICS] Studies investigating the refusal rates of peer reviewing in journals > >Adminstrative info for SIGMETRICS (for example unsubscribe): http://web.utk.edu/~gwhitney/sigmetrics.html >Dear All, > >We are wondering if someone would be able to help us locate a reference regarding the refusal rates in peer reviewing in journals, or in other words, how many potential reviewers decline the invitation to review a paper or a research proposal. > >Does anyone know of a study that investigated this? > >Looking forward to your replies. > >Kind regards, >Gjemma > >Gjemma Derrick| BSc (Hons) MSc PhD (ANU) >Sydney Medical School | School of Public Health >The University of Sydney >Room 226a Edward Ford Building A27 | The University of Sydney | NSW | 2006 >T + 61 2 9114 1226 | F + 61 2 9351 7420 | M + 61 421 343 536? >E gjemma.derrick at sydney.edu.au? |?W http://www.health.usyd.edu.au > >CRICOS 00026A >This email plus any attachments to it are confidential and are subject to a claim for privilege. Any unauthorised use is strictly prohibited. If you receive this email in error, please delete it and any attachments. = = = = = = = = = = = = = = = = = = = = From j.hartley at PSY.KEELE.AC.UK Mon Jun 14 10:44:52 2010 From: j.hartley at PSY.KEELE.AC.UK (James Hartley) Date: Mon, 14 Jun 2010 15:44:52 +0100 Subject: How might one measure the difficulty of formulae? Message-ID: A colleague of mine has asked about whether or not it is possible to measure the difficulty of formulae in a statistics text. He writes thus: > I certainly agree that it would be helpful if we could > apply a way of measuring the complexity of a textbook statistics formula, > rather than simply noting its occurrence. I don?t know of any such metric > (the only thing that I can think of is the number of alphanumeric > characters in the equation), but I will check into this. (Do you know > anyone to ask about this?) It would certainly be helpful if we had a > cardinal measure of equation complexity, similar to the way that a Flesch > score gives a cardinal measure of word content complexity. > >Anyone any ideas! Cheers Jim James Hartley School of psychology Keele University Staffordshire ST5 5BG UK j.hartley at psy.keele.ac.uk > From eugene.garfield at THOMSONREUTERS.COM Tue Jun 15 00:34:38 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Mon, 14 Jun 2010 23:34:38 -0500 Subject: FW: Personal Alert: 1 items found [Profile:003172] Message-ID: ========================= TITLE: Journal of Radioanalytical and Nuclear Chemistry, 2005- 2009: a citation-based bibliography and impact analysis using Hirsch-type statistics (Bibliography, English) AUTHOR: Braun, T; Andras, S SOURCE: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 285 (1). JUL 2010. p.1-81 SPRINGER, DORDRECHT SEARCH TERM(S): CITATION item_title; CITATION* item_title; JOURNAL item_title ABSTRACT: All papers published in the Journal of Radioanalytical and Nuclear Chemistry (JRNC) in the period 2005-2009 (source dataset) and all papers citing these papers and published in other journals (target dataset) have been compiled. A scientometric analysis of the datasets has been performed using Hirsch-type statistics. A comprehensive bibliography of the citing papers is presented. AUTHOR ADDRESS: S Andras, Journal Radioanalyt & Nucl Chem, Editorial Off, Budapest, Hungary . From vladimir.batagelj at FMF.UNI-LJ.SI Tue Jun 15 02:14:52 2010 From: vladimir.batagelj at FMF.UNI-LJ.SI (Vladimir Batagelj) Date: Tue, 15 Jun 2010 08:14:52 +0200 Subject: How might one measure the difficulty of formulae? Message-ID: <<<-------- James Hartley-------->>> > A colleague of mine has asked about whether or not it is possible to > measure > the difficulty of formulae in a statistics text. He writes thus: > > > I certainly agree that it would be helpful if we could >> apply a way of measuring the complexity of a textbook statistics >> formula, >> rather than simply noting its occurrence. I don?t know of any such >> metric >> (the only thing that I can think of is the number of alphanumeric >> characters in the equation), but I will check into this. (Do you know >> anyone to ask about this?) It would certainly be helpful if we had a >> cardinal measure of equation complexity, similar to the way that a >> Flesch >> score gives a cardinal measure of word content complexity. >> >>Anyone any ideas! Every formula can be represented by a tree. For example (-b+sqrt(b^2-4ac))/(2a) 6 / / \ 5 + * / \ / \ 4 - sqrt 2 a / \ 3 b - / \ 2 ^2 * / / | \ 1 b 4 a c A simple measure of its complexity could be its height (or depth) - in our case h = 6. For a better measure it should be combined in some way with branching structure of the tree. For example: a+b+c+d+e h=2 b=5 f(g(h(p(q(x))))) h=6 b=1 Vlado -- Vladimir Batagelj, University of Ljubljana, FMF, Department of Mathematics Jadranska 19, 1000 Ljubljana, Slovenia http://vlado.fmf.uni-lj.si From loet at LEYDESDORFF.NET Tue Jun 15 03:04:03 2010 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Tue, 15 Jun 2010 09:04:03 +0200 Subject: normalization of citation analysis at the field level Message-ID: Normalization at the field level: fractional counting of citations Journal of Informetrics (forthcoming). Van Raan et al. (2010; arXiv:1003.2113) have proposed a new indicator (MNCS) for field normalization. Since field normalization is also used in the Leiden Rankings of universities, we elaborate our critique of journal normalization in Opthof & Leydesdorff (2010; arXiv:1002.2769) in this rejoinder concerning field normalization. Fractional citation counting thoroughly solves the issue of normalization for differences in citation behavior among fields. This indicator can also be used to obtain a normalized impact factor. Scopus ' SNIP indicator Journal of the American Society for Information Science and Technology (forthcoming). Rejoinder to Moed (2010; at http://arxiv.org/abs/1005.4906): Our main objection is against developing new indicators which, like some of the older ones (for example, the "crown indicator" of CWTS), do not allow for indicating error because they do not provide a statistics, but are based, in our opinion, on a violation of the order of operations. The claim of validity for the SNIP indicator is hollow because the normalizations are based on field classifications which are not valid. Both problems can perhaps be solved by using fractional counting. Loet Leydesdorff & Tobias Opthof _____ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR) Kloveniersburgwal 48, 1012 CX Amsterdam. Tel. +31-20-525 6598; fax: +31-842239111 loet at leydesdorff.net ; http://www.leydesdorff.net/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From isidro.aguillo at CCHS.CSIC.ES Tue Jun 15 05:28:13 2010 From: isidro.aguillo at CCHS.CSIC.ES (Isidro F. Aguillo) Date: Tue, 15 Jun 2010 11:28:13 +0200 Subject: On some webometrics methods In-Reply-To: Message-ID: Dear colleagues: Many of the webometrics papers currently published are based on methods requiring the use of search engines for collecting the web data. I want to warn about the use in some of them of obsolete procedures that should be discarded: - Altavista search engine is still popular as source of web data. However, Altavista and the Alltheweb, a European popular engine, were bought by Yahoo about 2003. Since then they are using the Yahoo database as a source although maintaining different (original) interfaces. Our empirical results show that although the databases are the same, the frequency of the updating of the "mirrors" (Altavista, Alltheweb) is lower than the Yahoo database. Taking into account the still fast growth of the Web, this means that for most of the time Yahoo is providing MORE and fresher results than its mirrors. As there is no technical reason for not using the same operators in the three engines, using Altavista is no longer recommended. - The Web Impact Factor (WIF) was the first web indicator proposed and it become popular because the ratio links/webpages were very similar to the successful ISI Impact factor that uses citations/papers. Unfortunately the distribution of links and webpages follow "power-law" distributions, so most of the time the WIF values are useless providing artifacts that can not be used for comparative purposes. Several recent papers cite the WIF as a useful tool that it is no longer true. Comments? -- =========================== Isidro F. Aguillo, HonPhD Cybermetrics Lab (3C1) IPP-CCHS-CSIC Albasanz, 26-28 28037 Madrid. Spain Editor of the Rankings Web =========================== From vladimir.batagelj at FMF.UNI-LJ.SI Tue Jun 15 17:12:01 2010 From: vladimir.batagelj at FMF.UNI-LJ.SI (Vladimir Batagelj) Date: Tue, 15 Jun 2010 23:12:01 +0200 Subject: How might one measure the difficulty of formulae? In-Reply-To: <23F9E979F1FC49BF936982C69C4BDE4D@vig371267> Message-ID: <<<-------- James Hartley-------->>> > Many thanks for this. Most helpful. I will forward it on to my > colleague! This afternoon I was thinking about a more sensitive measure. One possibility would be complexity = average depth of tree leaves X average degree of internal nodes Vlado -- Vladimir Batagelj, University of Ljubljana, FMF, Department of Mathematics Jadranska 19, 1000 Ljubljana, Slovenia http://vlado.fmf.uni-lj.si From wainer at IC.UNICAMP.BR Tue Jun 15 18:23:56 2010 From: wainer at IC.UNICAMP.BR (Jacques Wainer) Date: Tue, 15 Jun 2010 19:23:56 -0300 Subject: How are "fields" defined in bibliometrics. In-Reply-To: (Loet Leydesdorff's message of "Tue, 15 Jun 2010 09:04:03 +0200") Message-ID: A recent post by Loet Leydesdorff writes: | Fractional citation counting thoroughly solves the issue of | normalization for differences in citation behavior among fields. This and | The claim of validity for the SNIP | indicator is hollow because the normalizations are based on field | classifications which are not valid. How are fields defined? I am interested in sub-areas of Computer Science but I cannot find any definition of which are said sub-areas, and I realized that probably the same problem was solved a a higher lavel, when the different fields fo science were defined. thanks jacques wainer From loet at LEYDESDORFF.NET Wed Jun 16 01:58:21 2010 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Wed, 16 Jun 2010 07:58:21 +0200 Subject: How are "fields" defined in bibliometrics. In-Reply-To: <87vd9k2av7.fsf@ic.unicamp.br> Message-ID: > How are fields defined? I am interested in sub-areas of Computer Science but I cannot find any definition of which are said sub-areas, and I realized that probably the same problem was solved a a higher lavel, when the different fields fo science were defined. Dear Jacques, There have been different attempts to delineate fields in terms of journals, co-citation structures, etc. Sometimes, categories have been designed ex ante in tree-like structure. A sophisticated and literarily warranted classification is that of the Library of Congress. In bibliometrics, one often uses the ISI Subject Categories, but these are fixed since a long time and fuzzy in the overlappings. Algorithmic classifications are also available. See, for example, as an introduction: Ismael Rafols & Loet Leydesdorff (2009). Content-based and Algorithmic Classifications of Journals: Perspectives on the Dynamics of Scientific Communication and Indexer Effects, Journal of the American Society for Information Science and Technology 60(9) 1823-1835. With best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ From vladimir.batagelj at FMF.UNI-LJ.SI Wed Jun 16 02:53:39 2010 From: vladimir.batagelj at FMF.UNI-LJ.SI (Vladimir Batagelj) Date: Wed, 16 Jun 2010 08:53:39 +0200 Subject: How might one measure the difficulty of formulae? In-Reply-To: <23F9E979F1FC49BF936982C69C4BDE4D@vig371267> Message-ID: PS. In the proposed measure complexity = average depth of tree leaves X average degree of internal nodes the degree is out-degree (number of sons of a node). For example (-b+sqrt(b^2-4ac))/(2a) out-degrees of depth internal nodes 0 / 2 / \ 1 + * 2 2 / \ / \ 2 - sqrt 2 a 1 1 / \ 3 b - 2 / \ 4 ^2 * 1 3 / / | \ 5 b 4 a c Therefore average depth = (3+5+5+5+5+2+2)/7 = 27/7 average degree = (2+2+2+1+1+2+1+3)/8 = 14/8 = 7/4 complexity = 27/7 X 7/4 = 27/4 = 6.75 For an expression consisting of single variable or constant we set complexity = 1. f(g(h(x))) f | g | h | x complexity = 3 X 1 = 3 f(x,y,z) f / | \ x y z complexity = 1 X 3 = 3 There are two possibilities how to treat associative cases such as a + b + c + d The first option is + / / \ \ a b c d complexity = 1 X 4 = 4 and the second + / \ a + / \ b + / \ c d complexity = 9/4 X 2 = 4.5 If the names of variables and functions are of different length the measure can be extended by the additional length term. For example: complexity = average depth of tree leaves X average degree of internal nodes X sqrt(average length of the names) Note also that leaves = variables and constants internal nodes = operations and functions Vlado -- Vladimir Batagelj, University of Ljubljana, FMF, Department of Mathematics Jadranska 19, 1000 Ljubljana, Slovenia http://vlado.fmf.uni-lj.si From Christina.Pikas at JHUAPL.EDU Wed Jun 16 15:59:47 2010 From: Christina.Pikas at JHUAPL.EDU (Pikas, Christina K.) Date: Wed, 16 Jun 2010 15:59:47 -0400 Subject: Nature News special on Science Metrics Message-ID: Might be of interest: http://www.nature.com/news/specials/metrics/index.html Christina ---- Christina K Pikas Librarian The Johns Hopkins University Applied Physics Laboratory Christina.Pikas at jhuapl.edu (240) 228 4812 (DC area) (443) 778 4812 (Baltimore area) -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Wed Jun 16 17:43:37 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Wed, 16 Jun 2010 16:43:37 -0500 Subject: Citation classics in Urology Message-ID: ------------------------------------------------------------------------ -- TITLE: Classics of Urology: A Half Century History of the Most Frequently Cited Articles (1955-2009) (Review, English) AUTHOR: Heldwein, FL; Rhoden, EL; Morgentaler, A SOURCE: UROLOGY 75 (6). JUN 2010. p.1261-1268 ELSEVIER SCIENCE INC, NEW YORK SEARCH TERM(S): CITED item_title KEYWORDS+: STANDARDIZATION SUB-COMMITTEE; URINARY-TRACT FUNCTION; RENAL-CELL CARCINOMA; CONTINENCE SOCIETY; PROSTATECTOMY; TERMINOLOGY; CANCER ABSTRACT: To identify and characterize the most frequently cited articles published in Journals dedicated to Urology over the last 50 years. A Pubmed search was performed of all articles published in the 13 most cited urological journals between 1955 and 2009. Articles with more than 100 citations were identified as "classic", and were analyzed further. Of 97 554 articles published during this time, 1239 articles were cited more than 100 times. The most common topic among classic articles was prostate cancer and prostate-specific antigen (33.5%), followed by bladder cancer and benign prostatic hyperplasia. A further analysis was performed for the 50 most frequently cited articles ("top- 50"). UROLOGY 75: 1261-1268, 2010. (C) 2010 Elsevier Inc. AUTHOR ADDRESS: FL Heldwein, Rua Altamiro Guimaraes,360 Apto,504 Ctr, BR-88015510 Florianopolis, SC, Brazil [ ]<-- Enter an X to order article (IDS: 603PS 00006) ISSN: 0090-4295 ------------------------------------------------------------------------ -- ------------------------------------------------------------------------ ------------ Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu home page: www.eugenegarfield.org Tel: 610-525-8729 Fax: 610-560-4749 Chairman Emeritus, ThomsonReuters Scientific (formerly ISI) 1500 Spring Garden Street, Philadelphia, PA 19130-4067 Editor Emeritus, The Scientist LLC. www.the-scientist.com 400 Market St. Suite 330 Philadelphia, PA 19106-2535 Past President, American Society for Information Science and Technology (ASIS&T) www.asist.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Wed Jun 16 17:53:02 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Wed, 16 Jun 2010 16:53:02 -0500 Subject: Comparative Analysis of Impact Factor and h-index for Pharmacology Journals; THERAPIE 65 (2). MAR-APR 2010. p.129-137 Message-ID: TITLE: Comparative Analysis of Impact Factor and h-index for Pharmacology Journals. (Article, French) AUTHOR: Bador, P; Lafouge, T SOURCE: THERAPIE 65 (2). MAR-APR 2010. p.129-137 EDP SCIENCES S A, LES ULIS CEDEX A SEARCH TERM(S): GARFIELD E rauth; HIRSCH JE P NATL ACAD SCI USA 102:16569 2005; JOURNALS item_title; IMPACT FACTOR* item_title; GARFIELD E SCIENCE 122:108 1955 KEYWORDS: Journal Impact Factor; h-index; Journal ranking ABSTRACT: Comparative Analysis of Impact Factor and h-index for Pharmacology Journals. Using the strictly same parameters (identical two publication years (2004-2005) and identical one-year citation window (2006)), Impact Factor (IF) 2006 was compared with h-index 2006 for one sample of "Pharmacology and Pharmacy" journals computed from the ISI Web of Science. For this sample, the IF and the h-index rankings of the journals are very different. The correlation coefficient between the IF and the h-index is low for "Pharmacology and Pharmacy" journals. The IF and h-index can be completely complementary when evaluating journals of the same scientific discipline. AUTHOR ADDRESS: P Bador, Univ Lyon 1, Ctr Documentat Pharmaceut, Equipe ELICO, ISPB,Fac Pharm, 8 Ave Rockefeller, F-69373 Lyon 08, France ------------------------------------------------------------------------ ------------ Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu home page: www.eugenegarfield.org Tel: 610-525-8729 Fax: 610-560-4749 Chairman Emeritus, ThomsonReuters Scientific (formerly ISI) 1500 Spring Garden Street, Philadelphia, PA 19130-4067 Editor Emeritus, The Scientist LLC. www.the-scientist.com 400 Market St. Suite 330 Philadelphia, PA 19106-2535 Past President, American Society for Information Science and Technology (ASIS&T) www.asist.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Wed Jun 16 18:07:19 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Wed, 16 Jun 2010 17:07:19 -0500 Subject: Eigenfactor Metrics Message-ID: ------------------------------------------------------------------------ - TITLE: The Eigenfactor Metrics (TM): A Network Approach to Assessing Scholarly Journals (Article, English) AUTHOR: West, JD; Bergstrom, TC; Bergstrom, CT SOURCE: COLLEGE & RESEARCH LIBRARIES 71 (3). MAY 2010. p.236-244 ASSOC COLL RESEARCH LIBRARIES, CHICAGO SEARCH TERM(S): GARFIELD E rauth; PRICE DJD rauth; JOURNALS item_title; GARFIELD E JAMA-J AM MED ASSOC 295:90 2006 KEYWORDS+: IMPACT FACTOR ABSTRACT: Limited time and budgets have created a legitimate need for quantitative measures of scholarly work. The well-known journal impact factor is the leading measure of this sort; here we describe an alternative approach based on the full structure of the scholarly citation network. The Eigenfactor Metrics-Eigenfactor Score and Article Influence Score-use an iterative ranking scheme similar to Google's Page Rank algorithm. By this approach, citations from top journals are weighted more heavily than citations from lower-tier publications. Here we describe these metrics and the rankings that they provide. AUTHOR ADDRESS: JD West, Univ Washington, Dept Biol, Seattle, WA 98195 USA ------------------------------------------------------------------------ ------------ Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu home page: www.eugenegarfield.org Tel: 610-525-8729 Fax: 610-560-4749 Chairman Emeritus, ThomsonReuters Scientific (formerly ISI) 1500 Spring Garden Street, Philadelphia, PA 19130-4067 Editor Emeritus, The Scientist LLC. www.the-scientist.com 400 Market St. Suite 330 Philadelphia, PA 19106-2535 Past President, American Society for Information Science and Technology (ASIS&T) www.asist.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Wed Jun 16 18:10:23 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Wed, 16 Jun 2010 17:10:23 -0500 Subject: FW: [IP] he French medical system, in your pocket Message-ID: From: Ted Nelson > Reply-To: tandm at xanadu.net Dear Friends: The Carte Vitale is a green plastic credit card with a small gold memory chip in the middle. Each of the 61 million residents of France carries it all the time. Embedded in the gold metallic square is a digital record of every doctor visit, referral, injection, operation, x-ray, diagnostic test, prescription, warning, etc together with a report on how much the doctor billed and how much was paid, by the insurance funds and by the patient. Everybody in France has this card. A child under 15 has his records maintained on his mothers card. When the doctor receives the card from his patient he slides it into a small reader on his desk and the patients medical record is displayed on the doctor's computer screen. Thus, doctors and hospitals do not have large file cabinets full of records. The doctor proposes a remedy (shot, course of drugs, referral to specialist, whatever) and types a record of the visit and his treatment. That goes onto the carte vitale. The patient takes his carte vitale with him to the drug store, or hospital or specialist and the treatment is carried out. The golf chip is encrypted and there is no breach of patient privacy from lost cards. When the doctor completes his treatment and enters the days treatment on card, he simply hits the "transmit" key and all the billing information is transmitted to each of the relevant insurance plans. The insurance funds are required to pay him and pay him quickly. They do. No quibbles. Doctors and hospitals do not need to hire clerks and administrative people to bill insurance companies. No necessity to hire collection companies. No paper handlers. No secretaries or office managers. No administrative or clerical personnel whose main task is billing hundreds of payers and documenting all medical procedures. This email is not a political statement by me. I am not endorsing the universal health care system of France, Germany, England, Switzerland, Canada, Japan, Taiwan or any other country. I just wanted to let you know how this amazing Carte Vitale card saves a huge amount of money in France. Best regards, Jack -- Theodor Holm Nelson PhD Founder of computer hypertext, 1960 Fifty years fighting for a better world of rich parallel documents, visibly connected. . Visiting Professor of Electronics and Computer Science University of Southampton, UK. Archives -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 465 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 1588 bytes Desc: image002.jpg URL: From eugene.garfield at THOMSONREUTERS.COM Wed Jun 16 20:27:10 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Wed, 16 Jun 2010 19:27:10 -0500 Subject: FW: Citation Inflation - Science News Message-ID: For readers outside the US, Science News is a popular weekly digest published by the Society for Science and the Public. This digest relates to a paper by Bryan Neff and Julian Olden in the June issue of BioScience which may be familiar to some readers.. If you access the link that follows you can also read another piece by the same author (Raloff) on Citation Amnesia. EG http://www.sciencenews.org/view/generic/id/60283/title/Citation_inflatio n Citation Inflation - Science News Many journals - and the authors who publish their novel data and analyses in them - rely on "impact factors " as a gauge of the importance and prestige of their work. These ratios quantify how often a journal's papers were cited by peer-reviewed studies during the subsequent two years. And there's been a presumption that the more a journal's papers have been cited, the more important they must have been. However, a new analysis turns up subtle ways that journals can game the system to artificially inflate that impact factor. Because the authors of the new study can't read the intent of a journal's editors, they can't identify whether any particular publication tinkered with its policies to deliberately foster that inflation - or whether changes made for other purposes merely had that ancillary effect. What they can say is that many journals' impact factors no longer accurately reflect what this yardstick was designed to measure. An impact factor of 2 would indicate that on average, each paper published in the preceding two years had been cited twice in major peer-reviewed journals. To investigate claims of impact inflation, Bryan Neff of the University of Western Ontario , in London, and Julian Olden of the University of Washington , in Seattle, looked at all 70 peer-reviewed ecological journals that had consistently yielded an impact factor of at least 1 over the preceding five years. They used the Web of Science , one of the three primary journal-indexing sources, to download citation records for all papers published in the 70 journals between 1998 and 2007. After excluding 14 outlier articles for their excessive citations (i.e. "falling more than seven standard deviations from the regression line"), Neff and Olden focused their study on the remaining 72,298 papers. Over the 10 year period, published works cited from 8 to 330 other papers, with an average of 52. But this rate has not been static. On average, they found, "papers have cited 0.67 additional papers each year." Moreover, about 14 percent of citations, based on a random sampling of 100 publications, were to papers published in the preceding two years. So newer papers tend to cite more publications - and proportionately more recent publications - than did the older journal articles, Neff and Olden report in the June BioScience. Together, these factors contributed most to impact inflation over the surveyed decade, they say. The duo also looked at whether journals published review papers, which tend to be more heavily cited down the road than do single-study papers. "We found that there were strong positive relationships between the proportion of review papers published and the impact factor of the journal," they say, "as well as the change in impact factor over the past five years." This suggests that impact factors "should control for the proportion of reviews published," Neff and Olden argue, or should compute them separately for journals that publish reviews and those that do not. In fact, they contend that too many papers are essentially lazy and cite review papers rather than looking up and citing the original papers mentioned in the review. Citing this primary literature instead would "also help to alleviate the disproportionate effect reviews appear to have on impact factors," they maintain. Some editors may also encourage authors to cite recent papers that appeared in their publication, which would help boost impact factors, observes Alan Wilson of Auburn University in Alabama. But one potentially important inflationary factor rests outside those editors' hands: the growing proliferation of new journals. Impact calculations sort of assume that the pool of journals from which citations emerge will remain constant over time. In fact, that pool is increasing. And as the pool of potential citers expands, so does the likelihood that any given journal's papers will be mentioned. Sixty one of the 70 journals that Neff and Olden studied reported an increase in impact factor over the 10 years studied. However, the researchers found, only one-third of the total beat their calculated inflation rate of 0.23 per year. Four percent matched the inflation rate and 62 percent fell below it. Journals whose impact factors climbed faster than the rate of inflation often were those with the highest starting impact factor. It's like the rich getting richer fastest. Three years ago, Wilson investigated the inflation issue and found a link between journal financing and impact factor. Nonprofit journals tended to be oldest and have the lowest impact factors. For-profit journals or those published by nonprofit organizations but via a for-profit publisher had higher impact factors. Subscription rates of for-profit journals tend to cost substantially more than for journals published by nonprofits. And because authors try to publish in the highest-impact journal that will take their papers, a pressure can develop to submit manuscripts to the more expensive journals, he said. Moreover, libraries across the nation have had to cut back on their journal budgets. Here too, impact factor may be developing into an increasingly distorted metric for deciding how they can get the biggest bang for their subscriptions bucks. Neff and Olden cite other papers in recent years showing similar indications of impact-factor inflation in other fields, although their new rate for ecology journals seems to lead the pack. Clearly, the two argue, there must be a more equitable way to measure publishing value than this simple - and easy to manipulate - metric. * Email * | * Print * | * Found in: Ecology , Education , Environment and Science & Society -------------- next part -------------- An HTML attachment was scrubbed... URL: From David.Watkins at SOLENT.AC.UK Thu Jun 17 06:04:17 2010 From: David.Watkins at SOLENT.AC.UK (David Watkins) Date: Thu, 17 Jun 2010 11:04:17 +0100 Subject: SIGMETRICS Digest - 15 Jun 2010 to 16 Jun 2010 (#2010-78) In-Reply-To: Message-ID: How are "fields" defined in bibliometrics....? Dear Jacques You say you are interested in sub-fields of computer science, so it depends on how much 'granularity' you want. Science is a social activity so you only get part of the picture using quantitative bibliometrics - and less of it as the scale reduces. Diana Reader and I used a combination of ACA and cluster analysis to identify sub-fields in 'Entrepreneurship Research' - a very contentious topic since some argue that even the 'metafield' at that level doesn't warrant such a label. We then checked out the validity of the clusters using qualitative methods and got good agreement by the scholars in the metafield that the sub-fields had some substance. Time consuming (Diana's PhD!), but it worked out well. Regards David Watkins Professor of Management Development Southampton Business School Reader, D. and D. Watkins (2006). "The Social and Collaborative Nature of Entrepreneurship Scholarship: A Co-Citation and Perceptual Analysis." Entrepreneurship Theory and Practice 30(3): 417-441. This article explores the structure of the "metafield" of entrepreneurship in two related ways. First, author co-citation analysis establishes a collective view of the structure of the entrepreneurship literature as perceived by its research-active members. The co-citation frequencies of 78 prominent entrepreneurship researchers were analyzed using multivariate techniques. Cluster analysis and multidimensional scaling were used to explore the intellectual structure of entrepreneurship research by identifying groups of scholars whose work falls into similar areas. Factor analysis was then used to identify the underlying themes that characterize and define the field. Finally, the scholars within these nominal groupings were approached using individualized questionnaires to explore what social interactions might parallel, reflect, or underpin the intellectual ones. The study has given empirical support to a number of oft-quoted beliefs about entrepreneurship as a field of study, such as: (1) the occurrence of fragmentation from an early stage in its development; (2) that the difficulty of categorizing subfields unambiguously mirrors that in the metafield itself; (3) that there is a relative paucity of scholarship cited across-as opposed to within-these subfields; and (4) that there is evolution within the meta-field of national differences in the topics studied and citation patterns thereto. In addition, the study demonstrates that there are real and robust social and collaborative networks underlying the generation of the work which is cited jointly by third parties. The latter authors may be unaware of these networks. Equally, the co-cited authors, while recognizing overlapping interests, may have difficulty in categorizing this commonality in their contributions. Entrepreneurship research is shown to be very much a social activity, although this may be invisible to outsiders or novitiates. From eugene.garfield at THOMSONREUTERS.COM Thu Jun 17 20:04:35 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Thu, 17 Jun 2010 19:04:35 -0500 Subject: FW: Nature June 17th issue with special features on metrics Message-ID: Here are some links to today's issue of Nature, which features a discussion of metrics in several articles including commentaries by David Pendlebury, Tibor Braun and many others. : http://www.nature.com/nature/journal/v465/n7300/pdf/465845a.pdf http://www.nature.com/news/2010/100616/pdf/465860a.pdf http://www.nature.com/news/2010/100616/pdf/465864a.pdf http://www.nature.com/nature/journal/v465/n7300/pdf/465870a.pdf (requires sub to see) -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Sat Jun 19 13:58:54 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Sat, 19 Jun 2010 12:58:54 -0500 Subject: LACK OF GENDER BIAS IN CITATION RATES OF PUBLICATIONS BY DENDROCHRONOLOGISTS Message-ID: ------------------------------------------------------------------------ -- TITLE: LACK OF GENDER BIAS IN CITATION RATES OF PUBLICATIONS BY DENDROCHRONOLOGISTS: WHAT IS UNIQUE ABOUT THIS DISCIPLINE? (Article, English) AUTHOR: Copenheaver, CA; Goldbeck, K; Cherubini, P SOURCE: TREE-RING RESEARCH 66 (2). 2010. p.127-133 TREE-RING SOC, TUCSON SEARCH TERM(S): CITATION item_title; CITATION* item_title KEYWORDS: gender bias; citation; publishing; women in science KEYWORDS+: SCHOLARLY PRODUCTIVITY; WOMEN; IMPACT; LIBRARIANSHIP; PERSPECTIVES; DECISIONS; JOURNALS; SCIENCE; TRENDS ABSTRACT: Most academic disciplines have a gender bias that exists in the recognition of research publications: women's publications are cited at lower rates than men's publications. In this paper, we examined whether a similar gender bias existed for publications by dendrochronologists. Tree-ring research is a fairly small field where males outnumber females, and therefore the sample size was limited to 20 female dendrochronologists and 20 male dendrochronologists. It was determined that native language (English or non-native English speaker), current employment (government or academic), and gender of the first- author do not significantly influence a paper's probability of being cited. However. years since dissertation completion was a good predictor of a paper's citation rate. We suggest that the high productivity of female dendrochronologists and a pattern of co-authoring with male colleagues bring the work of females to the attention of their male colleagues and thus eliminate the gender bias in citation of women's work common to other disciplines. AUTHOR ADDRESS: CA Copenheaver, Virginia Tech, Dept Forest Resources & Environm Conservat, Blacksburg, VA 24061 USA [ ]<-- Enter an X to order article (IDS: 607IK 00005) ISSN: 1536-1098 ------------------------------------------------------------------------ ------------ Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu home page: www.eugenegarfield.org Tel: 610-525-8729 Fax: 610-560-4749 Chairman Emeritus, ThomsonReuters Scientific (formerly ISI) 1500 Spring Garden Street, Philadelphia, PA 19130-4067 Editor Emeritus, The Scientist LLC. www.the-scientist.com 400 Market St. Suite 330 Philadelphia, PA 19106-2535 Past President, American Society for Information Science and Technology (ASIS&T) www.asist.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Tue Jun 22 12:22:34 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Tue, 22 Jun 2010 11:22:34 -0500 Subject: Effect of cooperation between Chinese scientific journals and international publishers on journals' impact factor Message-ID: ------------------------------------------------------------------------ -- TITLE: Effect of cooperation between Chinese scientific journals and international publishers on journals' impact factor (Article, English) AUTHOR: Wang, SH; Wang, HJ; Weldon, PR SOURCE: JOURNAL OF INFORMETRICS 4 (3). JUL 2010. p.233-238 ELSEVIER SCIENCE BV, AMSTERDAM SEARCH TERM(S): JOURNALS item_title; IMPACT FACTOR* item_title KEYWORDS: Chinese scientific journals; International publishers; Impact factor KEYWORDS+: LANGUAGE ACADEMIC JOURNALS ABSTRACT: Growing cooperation between Chinese journals and international publishers invites an investigation of the effect of this cooperation, based on an analysis of journal IF changes. Data from 23 Chinese academic journals were chosen from about 50 English-language academic journals indexed by SCI or SCIE and with a long history of cooperation. The data do not suggest that cooperation has improved the journals' IF thus far. It appears that cooperation is generally limited to international distribution, and this has a weak influence on the quality of the journal and its IF, even though the papers can be accessed by worldwide users through publishers' international distribution networks. Cooperation with international publishers is one step, but actively working on the quality of the journals is a more important step. (C) 2009 Elsevier Ltd. All rights reserved. AUTHOR ADDRESS: SH Wang, China Univ Geosci, Editorial Off Journal, Wuhan 430074, Peoples R China [ ]<-- Enter an X to order article (IDS: 607YQ 00003) ISSN: 1751-1577 ------------------------------------------------------------------------ ------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Tue Jun 22 12:22:34 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Tue, 22 Jun 2010 11:22:34 -0500 Subject: No subject Message-ID: Email: jacso at hawaii.edu ------------------------------------------------------------------------ -- TITLE: Eigenfactor and article influence scores in the Journal Citation Reports (Review, English) AUTHOR: Jacso, P SOURCE: ONLINE INFORMATION REVIEW 34 (2). 2010. p.339-348 EMERALD GROUP PUBLISHING LIMITED, BINGLEY SEARCH TERM(S): CITATION item_title; GARFIELD E rauth; PENDLEBURY DA rauth; CITATION* item_title; JOURNAL item_title; GARFIELD E AM DOC 14:195 1963; GARFIELD E SCIENCE 178:471 1972 KEYWORDS: Influence; Information science; Serials; Eigenvalues and eigenfunctions; Libraries KEYWORDS+: IMPACT FACTOR DATA; GOOGLE SCHOLAR; H-INDEX; INDICATORS; SCIENCE; INFORMETRICS; MANAGEMENT; LIBRARIES; RANKINGS ABSTRACT: Purpose - This sequel to the earlier testing and evaluation of the five-year Journal Impact Factor (JIF-5) in the enhanced version of the Journal Citation Reports (JCR) (released in January and July 2009 for the 2007 and 2008 journal collections, respectively) seeks to assess and compare the impact on the ranking of journals by two other performance indicators. Design/methodology/approach - Both the Eigenfactor Score (EFS) and the Article Influence Score (AIS) use a five-year target window in the algorithm to quantify the scholarly impact at the overall journal level and at the article level, respectively. Findings - The paper examines how the rank positions of 52 library and information science journals change when the set of journals are ranked by the Eigenfactor metrics in relation to the JIF-5 indicator. Originality/value - The principle behind Google's PageRank is where a web page or site got ranked in the search results based not merely on the number of incoming links, but also on the status/prestige of the linking sites based on the PageRank scores of those linking sites. This is a recursively calculated permanent value until the next year's edition. AUTHOR ADDRESS: P Jacso, Univ Hawaii, Honolulu, HI 96822 USA [ ]<-- Enter an X to order article (IDS: 608JW 00008) ISSN: 1468-4527 ------------------------------------------------------------------------ ------------ Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu home page: www.eugenegarfield.org Tel: 610-525-8729 Fax: 610-560-4749 Chairman Emeritus, ThomsonReuters Scientific (formerly ISI) 1500 Spring Garden Street, Philadelphia, PA 19130-4067 Editor Emeritus, The Scientist LLC. www.the-scientist.com 400 Market St. Suite 330 Philadelphia, PA 19106-2535 Past President, American Society for Information Science and Technology (ASIS&T) www.asist.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Tue Jun 22 12:22:34 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Tue, 22 Jun 2010 11:22:34 -0500 Subject: new indicator of journal citation impact, denoted as source normalized impact per paper (SNIP). Message-ID: Email: moed at cwts.leidenuniv.nl ------------------------------------------------------------------------ TITLE: Measuring contextual citation impact of scientific journals (Article, English) AUTHOR: Moed, HF SOURCE: JOURNAL OF INFORMETRICS 4 (3). JUL 2010. p.265-277 ELSEVIER SCIENCE BV, AMSTERDAM SEARCH TERM(S): GARFIELD E rauth; HIRSCH JE P NATL ACAD SCI USA 102:16569 2005; SEGLEN PO J AM SOC INFORM SCI 45:1 1994; JOURNALS item_title; CITATION item_title; CITATION* item_title; GARFIELD E BRIT MED J 313:411 1996; GARFIELD E SCIENCE 178:471 1972 KEYWORDS: Journal metrics; Journal impact factor; Reference practices; Database coverage; Scopus; Source normalization KEYWORDS+: TOOL; SYSTEM; OUTPUT ABSTRACT: This paper explores a new indicator of journal citation impact, denoted as source normalized impact per paper (SNIP). It measures a journal's contextual citation impact, taking into account characteristics of its properly defined subject field, especially the frequency at which authors cite other papers in their reference lists, the rapidity of maturing of citation impact, and the extent to which a database used for the assessment covers the field's literature. It further develops Eugene Garfield's notions of a field's 'citation potential' defined as the average length of references lists in a field and determining the probability of being cited, and the need in fair performance assessments to correct for differences between subject fields. A journal's subject field is defined as the set of papers citing that journal. SNIP is defined as the ratio of the journal's citation count per paper and the citation potential in its subject field. It aims to allow direct comparison of sources in different subject fields. Citation potential is shown to vary not only between journal subject categories - groupings of journals sharing a research field - or disciplines (e. g., journals in mathematics, engineering and social sciences tend to have lower values than titles in life sciences), but also between journals within the same subject category. For instance, basic journals tend to show higher citation potentials than applied or clinical journals, and journals covering emerging topics higher than periodicals in classical subjects or more general journals. SNIP corrects for such differences. Its strengths and limitations are critically discussed, and suggestions are made for further research. All empirical results are derived from Elsevier's Scopus. (C) 2010 Elsevier Ltd. All rights reserved. AUTHOR ADDRESS: HF Moed, Leiden Univ, Ctr Sci & Technol Studies CWTS, POB 905, NL-2300 AX Leiden, Netherlands [ ]<-- Enter an X to order article (IDS: 607YQ 00007) ISSN: 1751-1577 ------------------------------------------------------------------------ ------------ Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu home page: www.eugenegarfield.org Tel: 610-525-8729 Fax: 610-560-4749 Chairman Emeritus, ThomsonReuters Scientific (formerly ISI) 1500 Spring Garden Street, Philadelphia, PA 19130-4067 Editor Emeritus, The Scientist LLC. www.the-scientist.com 400 Market St. Suite 330 Philadelphia, PA 19106-2535 Past President, American Society for Information Science and Technology (ASIS&T) www.asist.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Tue Jun 22 12:22:35 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Tue, 22 Jun 2010 11:22:35 -0500 Subject: No subject Message-ID: Email: Sidney Redner (redner at bu.edu) ------------------------------------------------------------------------ TITLE: Community structure of the physical review citation network (Article, English) AUTHOR: Chen, P; Redner, S SOURCE: JOURNAL OF INFORMETRICS 4 (3). JUL 2010. p.278-290 ELSEVIER SCIENCE BV, AMSTERDAM SEARCH TERM(S): CITATION item_title; CITATION* item_title KEYWORDS: Citation network; Modularity; Community structure; Physical review KEYWORDS+: MODEL; POLYACETYLENE; SOLITONS ABSTRACT: We investigate the community structure of physics subfields in the citation network of all Physical Review publications between 1893 and August 2007. We focus on well-cited publications (those receiving more than 100 citations), and apply modularity maximization to uncover major communities that correspond to clearly identifiable subfields of physics. While most of the links between communities connect those with obvious intellectual overlap, there sometimes exist unexpected connections between disparate fields due to the development of a widely applicable theoretical technique or by cross fertilization between theory and experiment. We also examine communities decade by decade and also uncover a small number of significant links between communities that are widely separated in time. (C) 2010 Elsevier Ltd. All rights reserved. AUTHOR ADDRESS: S Redner, Boston Univ, Dept Phys, Ctr Polymer Studies, 590 Commonwealth Ave, Boston, MA 02215 USA [ ]<-- Enter an X to order article (IDS: 607YQ 00008) ISSN: 1751-1577 -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSONREUTERS.COM Tue Jun 22 12:32:44 2010 From: eugene.garfield at THOMSONREUTERS.COM (Eugene Garfield) Date: Tue, 22 Jun 2010 11:32:44 -0500 Subject: Are Shorter Article Titles More Attractive for Citations? Message-ID: Full text available at : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2859422/ ------------------------------------------------------------------------ -- TITLE: Are Shorter Article Titles More Attractive for Citations? Crosssectional Study of 22 Scientific Journals (Article, English) AUTHOR: Habibzadeh, F; Yadollahie, M SOURCE: CROATIAN MEDICAL JOURNAL 51 (2). APR 2010. p.165-170 MEDICINSKA NAKLADA, ZAGREB SEARCH TERM(S): GARFIELD E rauth; JOURNALS item_title; CITATION* item_title; GARFIELD E JAMA-J AM MED ASSOC 295:90 2006; GARFIELD E CAN MED ASSOC J 161:979 1999 KEYWORDS+: IMPACT FACTOR ABSTRACT: Aim 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. Methods 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. Results 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 (P < 0.001, t test). Overall, articles with longer titles received more citations - Spearman rho = 0.266 - when titles were measured in characters, and rho = 0.244 when titles were measured in words (P < 0.001). This association was found for 7 of 8 journals with impact factor > 10 and for 2 out of 14 journals with impact factor < 10 (P < 0.001, Fisher exact test). Conclusion Longer 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. AUTHOR ADDRESS: F Habibzadeh, POB 71955-575, Shiraz 71955, Iran ------------------------------------------------------------------------ ------------ Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu home page: www.eugenegarfield.org Tel: 610-525-8729 Fax: 610-560-4749 Chairman Emeritus, ThomsonReuters Scientific (formerly ISI) 1500 Spring Garden Street, Philadelphia, PA 19130-4067 Editor Emeritus, The Scientist LLC. www.the-scientist.com 400 Market St. Suite 330 Philadelphia, PA 19106-2535 Past President, American Society for Information Science and Technology (ASIS&T) www.asist.org -------------- next part -------------- An HTML attachment was scrubbed... URL: