118,244 research outputs found
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Some Comments on the Question Whether Co-Occurrence Data Should Be Normalized
No full textIn a recent article in JASIST, L. Leydesdorff and L. Vaughan (2006) asserted that raw cocitation data should be analyzed directly, without first applying a normalization such as the Pearson correlation. In this communication, it is argued that there is nothing wrong with the widely adopted practice of normalizing cocitation data. One of the arguments put forward by Leydesdorff and Vaughan turns out to depend crucially on incorrect multidimensional scaling maps that are due to an error in the PROXSCAL program in SPSS.multidimensional scaling;PROXSCAL;Pearson correlation;author cocitation analysis;co-occurrence data;normalization
A remark on a paper of
No full textAbstract A classical theorem of Ramanujan relates an integral of Dedekind eta-function to a special value of a Dirichlet L-function at s = 2. Ahlgren, Berndt, Yee and Zaharescu have generalized this result. In this paper, we generalize this result to the context of holomorphic cusp forms on the upper half space
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
Letter from unknown writer to Jesse L. Boyce
No full textLetter to Jesse L. Boyce from unknown author (possibly Jack) about the investigation into the powder magazine located in the Grand Canyon. Some personal news is included in the letter such as the writer's marriage to the daughter of C.A. Taylor, former Supervisor of Cochise County
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Vocational rehabilitation, work resumption and disability pension : a register-study of cases granted vocational rehabilitation by social insurance offices in a Swedish county
No full textIncreasing figures for long-term sickness absence and disability pension are problems for many European countries where they have increased to burdensome levels, socially and financially. In a European study in 2003, Sweden showed the highest proportion of sick-listed with 4.5% of the employed work force absent due to sickness.The primary aim of this thesis was to study the outcomes of decisions taken at the Social Insurance Offices in a Swedish county with regard to work resumption after vocational rehabilitation (VR). Another specific aim was to evaluate whether social insurance officers show conformity of attitude regarding professional practice in their application of the insurance system. The reasoning behind this is that outside the legal framework and official policy, consciously or subconsciously, there is a selection of sick-listed persons to VR, and that the selection influences the outcome with respect to work resumption or disability pension.The study is based on all 832 clients granted VR (4.7 % of about 17,000 cases of sick listing) from six local social insurance offices in Sweden during 1998-99. Data were collected from mainframe registers and other records at each office. The register study was combined with a questionnaire study addressed to 30 social insurance officers at the offices. The questions concerned attitudes to the insurance system and the officers practice and application of the system.The proportion of clients with sickness allowance that received any VR measures varied among the offices from 1.2 % to 8.7 %. Among those granted VR 36% were men and 64% women. The predominant diagnosis group was musculoskeletal disorders/pain conditions. Of all cases receiving VR, 52.4% resumed work and 46.2% ended with a disability pension allowance. Two years after finalised VR a large proportion of the temporary disability pensions had become permanent. Among cases granted VR, those undergoing detailed investigation showed the lowest figures of work resumption, while those who did job training showed higher figures. The distinguishing factor between remaining at work and relapsing into sick-leave by the two-year follow-up was the duration of sick-leave.Those most likely (odds ratios) to remain at work two years after completed rehabilitation were industrial employees who had short sickness absence, had been selected for job training as a VR measure and were aged 16-29 years. Intra-county differences occurred in processing cases of sick-leavers who take part in VR measures. The local social insurance offices with the highest and lowest outcome rates of work resumption and disability pension, respectively, selected clients for VR from different categories of cases. The differences in characteristics appeared as duration of sick-listing. The offices whose clients had long sickness absence, including processing time for VR, and frequently used detailed investigation as a VR measure, showed more disability pension grants as outcomes of VR. Social insurance officers from different local insurance offices differed in their attitudes towards the social insurance system and its clients.List of scientific papersI. Ahlgren A, Bergroth A, Ekholm J (2004). Work resumption or not after rehabilitation? A descriptive study from six social insurance offices. Int J Rehabil Res. 27(3): 171-80. https://pubmed.ncbi.nlm.nih.gov/15319686II. Ahlgren A, Broman L, Bergroth A, Ekholm J (2005). Disability pension despite vocational rehabilitation? A study from six social insurance offices of a county. Int J Rehabil Res. 28(1): 33-42. https://pubmed.ncbi.nlm.nih.gov/15729095III. Ahlgren A, Bergroth A, Ekholm J, Schüldt K (2006). Work resumption after vocational rehabilitation. A follow-up two years after completed rehabilitation. [Submitted]IV. Ahlgren A, Bergroth A, Ekholm J, Schüldt K (2006). Selection of clients for vocational rehabilitation at six local social insurance offices. A combined register and questionnaire study on rehabilitation measures and attitudes among social insurance officers. [Submitted]</p
Some Comments on the Question Whether Co-occurrence Data Should Be Normalized
No full textIn a recent paper in the Journal of the American Society for Information Science and Technology, Leydesdorff and Vaughan assert that raw cocitation data should be analyzed directly, without first applying a normalization like the Pearson correlation. In this report, it is argued that there is nothing wrong with the widely adopted practice of normalizing cocitation data. One of the arguments put forward by Leydesdorff and Vaughan turns out to depend crucially on incorrect multidimensional scaling maps that are due to an error in the PROXSCAL program in SPSS.Multidimensional scaling;Author cocitation analysis;Co-occurrence data;Normalization;PROXSCAL;Pearson correlation
Sarah L. Blum Author Visit - Warrior Nurse: PTSD and Healing
No full textHear Sarah L. Blum, author of Women Under Fire: Abuse in the Military, discuss her newest book, Warrior Nurse: PTSD and Healing followed by a Q&A and book signing.
Sarah L. Blum is a decorated Vietnam veteran who served as an operating room nurse during the intense fighting of 1967. In recognition of her service, she was awarded the Army Commendation Medal.
Sponsored by CWU Veterans Center and CWU Libraries.https://digitalcommons.cwu.edu/libraryevents/1252/thumbnail.jp
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