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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
An unusual case of autonomous hyperparathyroidism in a patient with X-linked hypophosphatemic rickets and kallmann syndrome
No full textWe are reporting an unusual patient who presented to our medical center at 18 years of age for evaluation of disabling bilateral lower extremity deformity and delayed puberty. Extensive clinical, laboratory, and radiologic evaluation confirmed the coexistence of 2 X-linked inherited disorders, X-linked hypophosphatemic rickets (XLH) and Kallmann syndrome (KS). Treatment with oral phosphate and calcitriol along with intramuscular testosterone injections was initiated. Despite a dramatic response, the course of treatment was complicated by secondary hyperparathyroidism and, 13 years later, by the development of an autonomous parathyroid adenoma that was surgically resected. Furthermore, the coexistence of XLH and KS has not been reported before. We believe that the proximity of the KAL-1 gene (Xp 22.3), involved in the pathogenesis of KS, to the phosphate regulating endopeptidase on the X chromosome gene (Xp 22.1-22.2), involved in XLH, might be responsible for this association. © Copyright 2009 Southern Society for Clinical Investigation.Alem AM, 2000, KIDNEY INT, V58, P396, DOI 10.1046-j.1523-1755.2000.00178.x; Almqvist EG, 2006, CLIN ENDOCRINOL, V64, P58, DOI 10.1111-j.1365-2265.2005.02416.x; Alon US, 2008, CLIN J AM SOC NEPHRO, V3, P658, DOI 10.2215-CJN.04981107; ARNAUD C, 1971, SCIENCE, V173, P845, DOI 10.1126-science.173.3999.845; Azam N, 2003, ENDOCRINOLOGY, V144, P3463, DOI 10.1210-en.2003-0255; Blydt-Hansen TD, 1999, PEDIATR NEPHROL, V13, P607; CARPENTER TO, 1994, J CLIN ENDOCR METAB, V78, P1378, DOI 10.1210-jc.78.6.1378; Decker PA, 2001, WORLD J SURG, V25, P708; ECAROTCHARRIER B, 1988, ENDOCRINOLOGY, V123, P768; FIRTH RG, 1985, AM J MED, V78, P669, DOI 10.1016-0002-9343(85)90411-5; GLORIEUX FH, 1972, NEW ENGL J MED, V287, P481, DOI 10.1056-NEJM197209072871003; GLORIEUX FH, 1991, NEW ENGL J MED, V325, P1875, DOI 10.1056-NEJM199112263252609; HARDELIN JP, 1992, P NATL ACAD SCI USA, V89, P8190, DOI 10.1073-pnas.89.17.8190; HYP-Consortium, 1995, NAT GENET, V11, P130; INSOGNA KL, 1983, J CLIN INVEST, V71, P1562, DOI 10.1172-JCI110912; KNUDTZON J, 1995, CLIN ENDOCRINOL, V42, P199, DOI 10.1111-j.1365-2265.1995.tb01863.x; KROHN HP, 1997, ADV EXP MED BIOL, V81, P345; LEWY JE, 1972, J PEDIATR, V81, P294, DOI 10.1016-S0022-3476(72)80298-1; Makitie O, 2003, CLIN ENDOCRINOL, V58, P163, DOI 10.1046-j.1365-2265.2003.01685.x; McHenry Christopher R, 2006, Endocr Pract, V12, P294; Quarles LD, 2003, AM J PHYSIOL-ENDOC M, V285, pE1, DOI 10.1152-ajpendo.00016.2003; RIVKEES SA, 1992, J CLIN ENDOCR METAB, V75, P1514, DOI 10.1210-jc.75.6.1514; SAGGAGH Y, 2000, HUM MUTAT, V16, P1; Savio RM, 2004, ARCH SURG-CHICAGO, V139, P218, DOI 10.1001-archsurg.139.2.218; Schmitt CP, 2004, PEDIATR NEPHROL, V19, P473, DOI 10.1007-s00467-004-1443-y; SILVER J, 2002, AM J PHYSIOL-RENAL, V283, P367; SULLIVAN W, 1992, J CLIN ENDOCR METAB, V75, P879, DOI 10.1210-jc.75.3.879; Tenenhouse HS, 2003, J AM SOC NEPHROL, V14, P240, DOI 10.1097-01.ASN.0000045045.47494.71; Tournis S. T., 2005, Journal of Musculoskeletal and Neuronal Interactions, V5, P150; VERGE CF, 1991, NEW ENGL J MED, V325, P1843, DOI 10.1056-NEJM199112263252604; WINTERS RW, 1958, MEDICINE, V37, P97, DOI 10.1097-00005792-195805000-0000110
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Medical treatment of insulinomas: The role of diphenylhydantoin
No full textSurgical removal of the insulinoma continues to be the treatment of choice. Medical therapy should be considered in patients who cannot undergo surgery. We are reporting our experience with regard to the efficacy of Diphenylhydantoin (DPH) in controlling hypoglycemia and suppressing insulin release in patients with insulinomas. DPH was administered orally at a dose of 300-400 mg-day to three patients with documented endogenous insulin excess. The first two patients received the drug temporarily during the preoperative period, with resolution of the hypoglycemic attacks, normalization of blood glucose, and reduction of insulin levels. Subsequent surgery confirmed the presence of insulin-secreting pancreatic tumor. Cure was achieved after excision of the tumor. The third patient represented a diagnostic and threrapeutic challenge. An insulin-secreting tumor located in the body of the pancreas was diagnosed in a patient with type 2 diabetes and end stage renal disease. The patient's poor cardiac function contraindicated surgery. DPH resulted in an excellent sustained control of his blood sugar and a fall in insulin levels for several months. We believe that DPH is a potent inhibitor of insulin secretion and, thus, is suitable as a temporary therapeutic measure in the preoperative period of patients with insulinoma, as well as an alternative to surgery for those who are not surgical candidates. © 2009 International Journal of Diabetes Mellitus.
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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