1,722,628 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
Spectroscopic properties of the hypermetalated monohydroxides M₂OH (M=Li, Na, K)
Full text linkWydział Chemii: Zakład Fotochemii i SpektroskopiiZwiązki typu M₂OH (M = Li, Na, K) są najprostszymi związkami „hypermetalicznymi“ powstającymi przez przyłączenie atomu metalu do odpowiedniego wodorotlenku. Zostały one zaobserwowane dotychczas jedynie w doświadczeniach z naddźwiękowymi wiązkami molekularnymi metodami spektrometrii masowej. Dane literaturowe dotyczące tych połączeń są nieliczne. Celem pracy było zbadanie struktury równowagowej i właściwości spektroskopowych cząsteczek typu M₂OH (M = Li, Na, K) zaawansowanymi metodami chemii kwantowej.W wyniku obliczeń ab initio otrzymano struktury równowagowe oraz 6-wymiarowe powierzchnie energii potencjalnej dla elektronowych stanów podstawowych w przypadku rodników typu M₂OH oraz odpowiadających im kationów. Badano również efekty wpływu korelacji elektronów rdzeniowych na parametry równowagowe. Poziomy energii wibracyjno-rotacyjnej oraz stałe spektroskopowe różnych izotopomerów wyznaczono metodą perturbacyjną. Przewidywane stałe spektroskopowe mogą być pomocne w dalszych badaniach eksperymentalnych nad związkami hypermetalicznymi typu M₂OH oraz ułatwić analizę widm tych związków.W wyniku badań znaleziono, że struktura równowagowa cząsteczek związków hypermetalicznych typu M2OH jest strukturą płaską, o symetrii C₂v, ze znacznie dłuższym wiązaniem MO w porównaniu z wiązaniem OH. Uwzględnienie korelacji elektronów rdzeniowych wydaje się być wyraźnie istotne. Zmiana równowagowej długości wiązania MO jest większa niż wiązania OH. Wartości częstotliwości drgań harmonicznych i anharmonicznych związanych z rozciąganiem wiązania OH są dla rodników M₂OH podobne, natomiast w przypadku pozostałych drgań, związanych z atomem metalu, wartości te są zdecydowanie różne. Uwzględnienie efektów relatywistycznych w przypadku cząsteczek zawierających atomy potasu K₂OH i K₂OH+ jest konieczne.Widma wibracyjne i rotacyjne rodników i kationów są wyraźnie różne. Wyznaczone stałe spektroskopowe pomogą w przyszłości w analizie wysokorozdzielczych widm wibracyjno-rotacyjnych poszczególnych cząsteczek.M₂OH – type compounds (M = Li, Na, K) are the simplest “hypermetalated” compounds created by attaching a metal atom to the corresponding metal monohydroxide. They have been observed so far only in experiments with supersonic molecular beams by mass spectrometry. Literature data on these compounds are very limited.The aim of presented study was to investigate the equilibrium structure and spectroscopic properties of the M₂OH (M = Li, Na, K) molecules using the state-of-the-art methods of quantum chemistry. The equilibrium structures and 6-dimansional potential energy surfaces of the M₂OH radicals and the corresponding cations in their electronic ground states have been determined from accurate ab initio calculations. The effects of the core-electron correlation on the calculated molecular parameters were investigated. The vibration- rotation energy levels and spectroscopic constants of various isotopic species were calculated by a perturbational approach. The predicted spectroscopic constants may serve as a useful guide for detecting these species by vibration- rotation spectroscopy and for assigning their spectra.As a result of this research has been found that the equilibrium molecular structure of the “hypermetalated” M₂OH molecule is planar of C₂v symmetry. The metal-oxygen MO bond is predicted to be much longer than the OH bond. The inclusion of the core-electron correlation effects appeared to be very substantial. The change for the equilibrium MO bond length is larger, than that for the OH bond. The values of the harmonic and anharmonic vibration frequencies associated with stretching the OH bond are predicted to be similar for all of the M₂OH radicals under consideration. For the other vibrational modes involving the metal atoms M, the predicted harmonic and anharmonic vibration frequencies are definitely different. To predict the spectroscopic properties of the M₂OH molecules containing potassium (K₂OH and K₂OH +), it was necessary to account for the relativistic effects.The vibrational and rotational spectra of the M₂OH radicals and the M₂OH+ cations are predicted to be markedly different. The predicted spectroscopic constants can help in the future analysis of high-resolution spectra of these molecules
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