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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
The evolution of the common walnut cultivation (Juglans regia L.) in Italy. By pure plantations to polycyclicals
No full textIl presente lavoro riguarda lo studio degli accrescimenti di cinque piantagioni di noce comune (Juglans regia L) in relazione alle caratteristiche stazionarie e alle varie ipotesi di consociazione che li caratterizzano, localizzate in varie località del centro-nord Italia, realizzati in varie epoche e con criteri progettuali differenti tra loro, e distinte in due tipologie di impianti: monociclici monobiettivo e policiclici multi-obiettivo.
Per gli impianti monociclici, sono stati analizzati gli accrescimenti in diametro e altezza del noce per i singoli impianti, al sesto e tredicesimo anno di età, sulla base delle varie tesi, presenti all’interno di ogni singola piantagione, e in particolar modo alla percentuale e alle specie azotofissatrici consociate (Alnus cordata L, Elaeagnus umbellata T, Alnus Cordata L + Elaeagnus umbellata T). In seguito è stata effettuata una comparazione complessiva delle tre piantagione analizzate, con l’obiettivo di valutare l’effetto delle consociazioni e la loro interazione con le differenti condizioni stazionali. I risultati mostrano come, in condizioni di fertilità scarsa e media, l’effetto della consociazione ha effetti positivi sull’accrescimento del noce, se confrontato con quello in purezza, sia rispetto all’altezza che in termini di accrescimento diametrico. In terreni a media-bassa fertilità, l’effetto delle azotofissatrici sul noce si traduce in accrescimenti maggiori e in una migliore qualità delle piante, che quindi presentano una forma più slanciata e un fusto più dritto. In condizioni di fertilità elevata, l’effetto delle azotofissatrici sul noce risulta essere secondario.
Anche per i policiclici è stata effettuata l’analisi per ogni singolo impianto, per valutarne lo sviluppo a scala locale. Si tratta di due impianti dove il noce è consociato con il pioppo ibrido I214, con specie ad elevata produttività (i.e. biomassa) e con alcune piante accessorie. In questi impianti, le piante di noce e pioppo presentano due disposizioni diverse dei filari: per fila singola uno, per fila binata l’altro. Non essendoci differenze particolari in termini di specie consociate e di condizione stazionarie, per il noce il confronto tra i differenti impianti ha riguardato il modulo di impianto (in file singole e binate), le distanze nella fila e la consociazione con le specie da biomassa (Short rotation coppice, SRC). I risultati mostrano come il noce a 8 metri consociato con SRC di nocciolo sia quello più sviluppato, rispetto a quello consociato con SRC di carpino nero. Essendo un impianto dove i prodotti attesi riguardano anche il pioppo e le specie da biomassa, è stata effettuata una analisi sintetica per descriverli. Il pioppo in fila singola registra i diametri maggiori, indipendentemente dalla distanza a cui è messo a dimora. Nelle biomasse si registra una maggiore produttività da parte del nocciolo nell’impianto in fila binata, anche se bisogna sottolineare la differente epoca di stima delle biomasse nelle due piantagioni.This study concerns the analysis of five plantations of common walnut (Juglans regia L), in relation to the stationary characteristics and the different hypothesis of intercropping that characterize them, from various places in Northern and Central Italy, which were established at different times and through alternative techniques, and grouped into the following two types: single-objective monocyclic, and multi-objective polycyclic.
For the monocyclic plantations, both the diameter and height increment of the walnut were assessed for each plantation, at the sixth and the thirteenth year of age, according to the alternative management strategies previously defined for each plantation and in particular to the percentage and nitrogen-fixing species intercropping (Alnus cordata L, Elaeagnus umbellata T, Alnus cordata L + Elaeagnus umbellata T). Then, a comparison between the three plantations was carried out, in order to evaluate the effect of intercropping, as well as and their response to different site conditions. The results show that in medium-low fertility conditions, the consociation has positive effects on the walnut growth, if compared with the same in pure stands, regarding both the diameter and height increment. In medium-low fertility conditions, the effect of nitrogen-fixing on the walnut results in a higher individual growth and in an increased wood quality. In these cases, the stems are more slender and straighter. In high fertility conditions, the effects of the nitrogen-fixation on the walnut seem to be secondary.
Even for the polycyclic plantations, the analysis for each individual plant was carried out, in order to evaluate their growth at the local scale. In these two plants, the walnut is associated with the I214 hybrid poplar, especially for the production of biomass, with some other species. In these plants, walnut and poplar species have two different row arrangements: single row and double row. Considering that in this case there are no large differences between terms of secondary species and site conditions, the comparison between the different systems for the walnut concerned the implant module (in single and double rows), the distances between the rows, and intercropping with biomass species (Short rotation coppice, SRC). The results show that the walnut trees at 8 meters is the most developed if associated with the hazel SRC, in comparison with that associated with the hornbeam SRC. Being a plant where the expected products also concern the poplar and biomass species, it was carried out summary analysis to describe them. The poplar in single row has larger diameters, regardless of the distance to which it is planted. Concerning the results in biomass production, a higher productivity is obtained in common hazel plants on twin-rows, despite the two plantations have different ages.Dottorato di ricerca in Scienze agro-forestali, delle tecnologie agro-industriali e del territorio rurale. I sistemi forestali (XXVIII ciclo
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
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