1,720,961 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
sj-pdf-1-imr-10.1177_03000605221100134 - Supplemental material for Clinical outcomes of AngioJet rheolytic thrombectomy in the treatment of May–Thurner syndrome-related deep venous thrombosis
No full textSupplemental material, sj-pdf-1-imr-10.1177_03000605221100134 for Clinical outcomes of AngioJet rheolytic thrombectomy in the treatment of May–Thurner syndrome-related deep venous thrombosis by Wei Wen-Cheng Hsin Chun-Hsien Hsuan-Tzu Yang, Ta-Wei Su, I-Hao Su, Sung-Yu Chu, Po-Jen Ko, Yu Sheng-Yueh Lee Chun-Hui in Journal of International Medical Research</p
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
NMR line shape studies of static and dynamic systems
No full textNMR line shapes for polycrystalline samples under static, sample spinning and molecular dynamic exchange motion have been investigated. Of particular interests are the line shapes of quadrupole nuclei under the above conditions. The line shapes governed by the following conditions are discussed. (1) The field dependence of the NMR static powder line shape in the presence of both shift anisotropy and the second order quadrupole interaction of half integer quadrupolar nuclear spins are studied. From the field dependence of the critical frequencies, the interaction parameters as well as the mutual orientation of the interaction tensors can be conveniently determined. This method, never before proposed, provides an easy approach in determining the locations and the local electronic environments of the quadrupole nucleus. (2) The powder spectrum of the second order quadrupole interactions in the presence of rapid sample spinning has been studied for ('133)Cs (I = 3/2) nucleus in the Zeolite. The changes of the quadrupole coupling constants and the asymmetry parameters provides a reasonable indication of the process of the hydration of the sample. (3) The dynamic NMR powder spectra of the second order quadrupole interaction plus nonnegligible shift anisotropy has been studied in detail for the ('23)Na (I = 3/2) nucleus in the compound NaMo(,4)O(,6). This study provides information concerning the equilibrium location of the sodium nucleus and indicates a structural incommensuration. The effect of molecular dynamics upon the second order central transition has been demonstrated for the first time. (4) The variable-angle sample spinning line shape of a spin-half nucleus under a heteronuclear dipolar interaction between the quadrupole spin and the spin-half nucleus is strongly dependent upon the quadrupole moment and the asymmetry of the quadrupole nucleus. Hence it provides an indirect tool in studying the quadrupole nucleus in a manner not possible to probe by conventional NMR. These studies have been applied to distinguish the different structural sites in Zr(,6)Cl(,12)H and ZrClO(,x)H(,y) which are produced in mixed form during synthesis.</p
Autobiography Re-defined: A Discussion of Anita Endrezze\ue2s Life Writing Throwing Fire at the Sun, Water at the Moon
No full textThis thesis investigates autobiography from the standpoint of Native Americans, using Anita Endrezze\ue2s work as my anchor text. Drawing on Hertha Wong\ue2s critical position on Native American life writing, I argue that Anita Endrezze\ue2s autobiography, Throwing Fire at the Sun, Water at the Moon (2000), widens the scope of traditional generic limitations. The first chapter is the introduction, which delineates the theme of the thesis and introduces Yaqui history and Endrezze\ue2s family and cultural background. The second chapter analyzes what characterizes Native American autobiography by borrowing Hertha Wong\ue2s standpoint. Hertha Wong is one of the first theorists who yearn to widen the scope of the well-established generic limitations. She theorizes Native American autobiography by putting its etymology (\ue2self,\ue2 \ue2life,\ue2 and \ue2writing\ue2) under scrutiny. Wong\ue2s critical base is the key thread of the chapter, and other critics\ue2 positions on Native American life writing are also provided as subsidizing points. Chapter Three revolves around how Endrezee conceptualizes \ue2the self\ue2 in her autobiographical narratives. Wong argues that Native Americans never regard the self as a separate entity from their community. Correspondingly, Endrezze consciously strives to construct a communal self in her personal narratives. To reach the aim, she relates herself to her relatives, her ancestors, and the present-day Yaquis. Besides, through her homing-in journey, she makes a direct connection to her ancestral homeland. Therefore, the representation of the self is not only community-based but also localized. Chapter Four aims to show that Endrezze\ue2s life narratives go beyond the realms of humans. That is, her autobiography resists anthropocentric narratives. She tells stories about the corn, the rain, and a wide variety of plants and animals. It is through the assistance of non-humans that human life is sustainable. Chapter Five aims to argue that Endrezze\ue2s autobiography shatters the fallacy that Native American culture is in demise. On the contrary, it is burgeoning. Endrezze uses her autobiography to fight back. Endrezze attempts to hybridize the languages to pose some reading obstacles to Euro-Americans. Besides, inserting her paintings at the end of autobiography is also a political act because it subverts traditional writing system. She mocks at the mono-dimensional narratives. Chapter Six is my conclusion, in which Endrezze\ue2s cultural and literary contributions are re-affirmed. It is my deep hope that Endrezze\ue2s book can, as her book title symbolizes, become another form of fire/water to continue the life of Yaquis
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
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