1,720,971 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
Understanding the volcanic response to edifice collapse : a case study of the Poto and Paetahi formations at Mt. Taranaki : a thesis submitted in partial fulfilment of a Philosophiae Doctor degree in Earth Science, Volcanic Risk Solutions, School of Agriculture and Environment, Massey University, New Zealand
No full textStratovolcanoes are unstable and prone to collapse. Depressurisation from collapse events can possibly impact the subvolcanic plumbing system. This may cause a change in the eruptive size, style and frequency of eruptive activity following a collapse.
Mt. Taranaki in New Zealand provides a unique opportunity to investigate the influence of edifice collapse on eruptive behaviour. The extensive ring plain around Mt. Taranaki is dominated by debris-avalanche deposits (DAD) recording the last > 200 kyr of eruptive history including at least fourteen events. The medial ring plain provides a stratigraphic record of the last 30 ka of eruptive history comprising four DADs including two of the largest to have occurred in Mt. Taranaki’s history the 27.3 ka (5.85 km³) Ngaere and 24.8 ka (> 7.5 Understanding the volcanic response to edifice collapse. A case study of the Poto and Paetahi Formations at Mt. Taranaki Understanding the volcanic response to edifice collapse. A case study of the Poto and Paetahi Formations at Mt. Taranaki km³ Pungarehu DAD. The (27.3-23.1 ka) Poto and Paetahi Formations deposited across the eastern and southeastern sector of the ring plain are used to investigate the effects of depressurisation on the magmatic system.
A detailed stratigraphic analysis of medial to distal exposures of the Poto and Paetahi Formations was undertaken across the eastern and southeastern sectors of the Taranaki ring plain. Changes in lithosedimentological characteristics were used to identify single and multiphase eruptive events. Isopach and Isopleth mapping of the deposits show a period of increased explosive activity within Mt. Taranaki’s history. The deposits were analysed for grain size distributions, componentry, juvenile and density, as well as X-ray tomography to define vesicle and crystal number densities and volumes. Geochemical analysis on whole rock, glass, feldspar, and pyroxene crystals was conducted to create a detailed account of the changes within the Poto and Paetahi Formations and infer the response to edifice collapse. This study found that the relative abundance of lithics informed processes of conduit stability throughout the eruptive period, with increase abundance reflecting conduit excavation. Components were divided into juveniles, lithics and free crystals with subcategories established for each lithology class. Micro-Computed X-ray tomography indicated the high percentage of small bubbles present within the juvenile deposits.
Twenty-eight subplinian eruptions produced at least ~3 km³ of tephra across the eastern and southeastern Taranaki ring plain within a ~4 kyr period, producing single and multiphase eruptive events with eruption column heights between 10-20 km and individual deposit volumes of 0.01-0.26 km³. Variations in the relative abundance of lithic clasts and density analysis of juvenile deposits reflect changing conduit conditions throughout the Poto and Paetahi Formations. Connected porosities and the abundance of juvenile clasts increased during stable conduit conditions due to the formation of gas flow pathways. A decrease in connected porosities and increase in the abundance of lithics indicated conduit excavation through unstable/ widening events, disrupting the formation of gas flow networks.
Large populations of small bubbles (2.75 x 10-7 mm-3) are indicated through high vesicle number densities (VND) (9.03 x 1015 – 1.74 x 1016 cm-3), reflecting the domination of late-stage bubble nucleation within the upper conduit by fast ascending magmas occurring throughout the Poto and Paetahi Formations. Vesicle size populations reflect the onset location of bubble nucleation within the system. Changes in vesicle size distributions and oscillatory crystal rims throughout the sequence reflect cycles of magma recharge and storage occurring below Mt. Taranaki. Single stage nucleation events reflect the rapid ascent of magma through the system, while bubble coalescence indicates some magma stalled within the mid-to-upper crustal system. Whole rock compositions from these tephra vary between 3.03 – 5.19 wt.% MgO and reflect an evolution in magmatic composition overtime. Depressurisation from the eastern Ngaere collapse resulted in an increase in MgO wt.% (from 4.06 wt.% to 4.55 wt.%), decrease in VND (from 1.53 x 1016 to 9.76 x 1015 cm-3), but uniform vesicle volumes (VV) (from 4.9 to 4.8 %). This indicates a change in magmatic overpressure and deactivation of the mid-to-upper crustal system. The younger (23.1 – 24.1 Ka) Paetahi Formation is more evolved than the Poto Formation (27.3-25 Ka), reflecting the re-activation of the mid-to-upper crustal system throughout the regrowth period. Continued evolution in magmatic composition (from 3.62 wt.% to 3.14 wt.% MgO), increase in VND (from 1.15 x1016 to 1.29x1016 cm-3) and decrease in VV (from 7.1 to 3.3%) following the western Pungarehu collapse (~2,500 years after the Ngaere) reflects no depressurisation on the shallow volcanic system. The observed differences in response to collapse events is due to the relative height of the edifice and location of the conduit/ vent.
The sedimentological, textural, and geochemical analysis of the Poto and Paetahi tephra formations demonstrate the changes to eruptive activity following collapse events. However, these results highlight the relationship between edifice height, lithostatic pressure and the magmatic system. The Ngaere collapse depressurized a fully grown edifice (~ 2500 m), shifting the vent location within the scar and destabilized the remanent cone. The relatively short time between collapse events (~2,500 years) saw the western remanent cone collapse before Mt. Taranaki had fully regrown. This did not cause a significant change on the magmatic system below and allowed for the continued regrowth. This study highlights a need to understand the relationship between hazardous volcanic phenomena to generate more accurate hazard scenarios for stratovolcanoes which are prone to edifice collapse
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
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