1,720,960 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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
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
Rapidly reversible closure of mini-laparotomy during laparoscopic colorectal surgery
No full textSpecimen extraction has been described as the Achilles heel of laparoscopic colonic surgery. In most cases, this extraction is performed via a tailored, appropriately placed mini-laparotomy incision. Immediate closure of this mini-laparotomy following specimen extraction waists operative time and prevents the incision from being used for access later on in the procedure. The use of hand assist devices to allow reversible closure has been reported, not without its own drawbacks including cost and difficulty of use. We hereby describe a technique of creating a rapidly reversible closure of the mini-laparotomy incision using a simple wound protector. This technique is simple, easily reproducible, inexpensive, and effective, leading to time savings in the operating room when applied properly. © 2007 Excerpta Medica Inc. All rights reserved.Balli JE, 2000, SURG ENDOSC-ULTRAS, V14, P1034, DOI 10.1007-s004640000223; Braga M, 2002, ANN SURG, V236, P759, DOI 10.1097-01.SLA.0000036269.60340.AE; Fleshman J.W., 1996, DIS COLON RECTUM S, V39, P53; Ghezzi F, 2002, SURG ENDOSC, V16, P1691, DOI 10.1007-s00464-002-9043-z; Gill IS, 2002, J UROLOGY, V167, P238, DOI 10.1016-S0022-5347(05)65423-7; Kang JC, 2004, SURG ENDOSC, V18, P577, DOI 10.1007-s00464-003-8148-3; Leroy J, 2004, SURG ENDOSC, V18, P281, DOI 10.1007-s00464-002-8877-8; Miller CE, 2001, CURR OPIN OBSTET GYN, V13, P399, DOI 10.1097-00001703-200108000-00005; MONSON JRT, 1995, BRIT J SURG, V82, P150, DOI 10.1002-bjs.1800820205; Nakajima K, 2004, SURG ENDOSC, V18, P102, DOI 10.1007-s00464-002-8648-6; SCHWENK W, 2005, COCHRANE DB SYST REV, DOI DOI 10.1002-14651858.CD003145.PUB2; Varkarakis I, 2005, BJU INT, V95, P27, DOI 10.1111-j.1464-410X.2005.05194.x; Winslow ER, 2002, SURG ENDOSC, V16, P1420, DOI 10.1007-s00464-002-8837-311
Solid pseudopapillary neoplasm of the pancreas in a 12-year-old female: Case report and review of the literature
No full textSolid pseudopapillary neoplasms of the pancreas (SPNP) are rare pancreatic tumors that occur predominantly in young women, with very few cases reported in men. While the origin of the tumor may be unclear, it is characterized by a distinct histological appearance and a clinical course highlighting its low malignant potential. SPNP have an excellent prognosis and are potentially curable provided they are managed appropriately by complete surgical resection. In the rare instances where metastatic disease is encountered, surgical debulking has been shown to prolong survival. The role of chemotherapy and radiation therapy in the management of SPNP is still controversial. We report here on an unusual occurrence of SPNP in the area of the head of the pancreas in a 12-year-old female treated by pancreatico-duodenectomy, together with a review of the literature. © Georg Thieme Verlag KG Stuttgart.Casanova M, 2003, MED PEDIATR ONCOL, V41, P74, DOI 10.1002-mpo.10289; Colović R, 2000, Srp Arh Celok Lek, V128, P393; Huang HL, 2005, WORLD J GASTROENTERO, V11, P1403; KLOPPEL G, 1991, VIRCHOWS ARCH A, V418, P179, DOI 10.1007-BF01600295; Lee DH, 2001, J ULTRAS MED, V20, P1229; Maffuz A, 2005, LANCET ONCOL, V6, P185, DOI 10.1016-S1470-2045(05)01770-5; MAO C, 1995, SURGERY, V188, P821; Martin RCG, 2002, ANN SURG ONCOL, V9, P35, DOI 10.1245-aso.2002.9.1.35; Merkle EM, 1996, Z GASTROENTEROL, V34, P743; Ng KH, 2003, ANZ J SURG, V73, P410, DOI 10.1046-j.1445-2197.2003.t01-1-02634.x; Papavramidis T, 2005, J AM COLL SURGEONS, V200, P965, DOI 10.1016-j.jmacollsurg.2005.02.011; Rebhandl W, 2001, J SURG ONCOL, V76, P289, DOI 10.1002-jso.1048; WARD HC, 1993, J PEDIATR SURG, V28, P89, DOI 10.1016-S0022-3468(05)80363-X107
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