1,720,963 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
Commentary to: An aggressive ameloblastic fibroma in a 9‐year‐old child treated with buccal fat graft
No full textBenign odontogenic tumors comprise a complex
group of lesions described in the 2005 WHO
classification based on the presence of odontogenic
epithelium, odontogenic ectomesenchyme, or
both. Ameloblastic fibroma (AF) is defined in
WHO classification as “neoplasm composed of
proliferating odontogenic epithelium embedded in
a cellular ectomesenchymal tissue that resembles
dental papilla, and with varying degrees of inductive
change and dental hard tissue formation. Both the
epithelial and the connective tissue components of
AF are neoplastic.[1] The neoplastic nature of AF
is supported by reports of recurrence after surgery
and by cases of malignant transformation from a
pre‐existing AF.[2,3] AF is a rather uncommon tumor,
accounting for only 2.5% of all odontogenic tumors.
AF raises at any age, ranging from 6 months to
42 years (mean 3.6-15.5 years); it does not show
sex predilection. The lesion occurs in nearly 50‐80%
of cases in posterior areas of the mandible, molar,
or premolar locations as well. About 25% of AF
are associated with permanent tooth eruption
disturbances and impacted tooth, affecting several
teeth too.[4] The rare extraosseous and soft tissue
localization of the lesion is defined “peripheral AF”.
The initial and small lesions are asymptomatic,
whereas large and advanced ones lead to swelling
and jawbone deformities.[2,5] The dimension and
growth of the lesion are not related with patient’s
complain, and the neoformation is frequently
discovered accidentally during a simple dental
radiological examination.[4]
AF may appear radiographically as a well‐defined
uni or multilocular radiolucent lesion, giving rise
to expansion of the cortex, associated or not with
the crown of an unerupted tooth.[2,3,5] Differential
diagnosis may involve dentigerous cyst and
ameloblastoma on a radiological point of view.[4,6]
Tumor size varies from 1 to 8.5 cm.[3,5] Amina
et al. described an exceptionally large AF localized
in the upper jaw, unlike the most common site in the
posterior mandible.[7]
AF exhibits a slower clinical growth than, for
example, an unicystic ameloblastoma, and it does
not demonstrate an infiltrative pattern among
trabeculae of the surrounding bone. It produces
a enlargement of jawbone through a gradual
expansion of cortex so that bony surface appears
intraoperatively smooth.[4,5]
Conservative or extensive (radical) approaches
over AF treatment are advocated by different
authors. In consideration of the innocuous behavior
of the lesion, several authors proposed a meticulous
enucleation or curettage as the initial treatment,
keeping a block resection for recurrence.[5]
Recurrence rate after surgery is a controversial
issue, and it is estimated between 18.3 and
43.5%.[2,3] Residual tumor left at the time of curettage
or enucleation gives rise to recurrence, and this
induce some authors to advocate a more extensive
surgery as first removal of the lesion. Zallen and
coworkers recommends, in detail, a wide excision of
the tumor unless a significant cosmetic deformity is
produced.[3]
Detection of residual tumor and early recurrence
is possible through a long‐term postoperative
control. The follow‐up management does not have
a well‐defined protocol. Pereira plans to see the
patient twice a year and to obtain TC/OPT on yearly
basis for 2 years; any suspicion of recurrence needs
earlier clinical and radiological control.[8] Long‐term
follow‐up carried out by different authors report no
recurrence after conservative procedure (enucleations
and curettage).[2,3,5] Recurrence of AF may potentially
occur as the malignant histological counterpart,
i.e., as an ameloblastic fibrosarcoma.
Ameloblastic fibrosarcoma develops de novo or
in recurrent fibro‐odontoma or AF. The malignant
transformation in an ameloblastic fibrosarcoma
is rare, even though 30‐45% of ameloblastitc
has developed in pre‐existing or recurrent AF or
in ameloblastic fibro‐odotomas.[9] Ameloblastic
fibrosarcoma does not give rise to metastasis and
is associated with a high recurrence rate (35%)
and 20% of patients have died because of
disease within 3 months to 19 years. Most of
these patients had undergone a curettage or an enucleation at the same site 1‐10 years before
the malignant transformation.[9] In ameloblastic
fibrosarcoma transformation the mesenchymal
component becomes malignant, while the epithelial
component does not show signs of malignant
transformation.[5] The mesenchymal part may show
a step‐wise progression to malignancy, making
difficult to differentiate ameloblastic fibrosarcoma
from AF. Immunoistochemical studies (Ki‐65, p53,
PCNA) are useful for identifying the malignancy.[9
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
- …
