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
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
A retrospective study of surgical correction of 18 cases (16 dogs) of eversion of nictitating membrane
No full textEverted third eyelid cartilage is a common ocular disease in young, large breed dogs. The
inappropriate third eyelid margin position impairs optimal tear film distribution and drainage
and may contribute to conjunctivitis and exposure keratopathy. This condition was presumed
to be congenital in certain breeds of dogs. Possible unequal growth rates of the bulbar and
palpebral cartilage surfaces and/or an unequal growth rate of the adherent conjunctiva were
hypothesized as contributing factors [1,2]. Different techniques for restoration of the
anatomical position of the everted nictating membrane have been reported. However, few
clinical reports evaluated postoperative results and relapse rate. The purpose of this study is
to describe and evaluate surgical treatment of third eyelid cartilage eversion in dogs, with or
without concomitant nictitans gland prolapse. A retrospective analysis of cases of eversion of
third eyelid cartilage in dogs, between January 2010 and December 2017 was performed.
The sex, breed and age at the time of diagnosis were recorded. The presence of other
concurrent ocular diseases and surgical treatment were also recorded. Follow-up information
was obtained from medical records and subsequently by telephone conversation with the
owner. Sixteen dogs representing 18 everted third eyelid cartilage were included in this study.
The sex distribution included 9 intact males and 7 intact females. Six dogs were Neapolitan
Mastiffs, three were English Bulldogs, two were Great Danes, two were Boxer, with one each
of the following breeds: Dachshund, Cane Corso and Rhodesian Ridgeback. Ages ranged
from 3 months to 8 months. Only two dogs were bilaterally affected. Surgical treatment
provided the excision of 2 mm of the folded cartilage, through posterior conjunctival
approach. The same approach was used to perform a Morgan Pocket technique, also in dogs
without prolapse of the nictitans gland. Incisions were finally apposed by simple continuous
suture with pds 5/0 until 1-2 mm of incision’s end. In one dog a double approach was
performed: the excision of the folded cartilage through anterior conjunctival approach while
the Pocket technique through posterior conjunctival approach, however, mild inflammation of
the third eyelid was observed. All dogs had good results in terms of cartilage correction with
no recurrence. In conclusion, the association of Morgan Pocket technique to the excision of
folded cartilage may be considered in the dogs with everted cartilage, in order to prevent the
prolapse of the gland and probably the relapse of the eversion. Bulbar approach to the
scrolled portion of cartilage, in the dog has the advantage that dissection is easier with less
adhesion of the cartilage to overlying conjunctiva. Although it was suggested [3] that corneal
damage may occur from resulting scarring if approach through the bulbar aspect is chosen,
the association of Pocket technique may be beneficial in reducing the possibility of traumatic
corneal scarring in the postoperative period
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Schirmer tear test value and corneal lesions' incidence during general anesthesia for non-ophthalmic surgery in non-brachycephalic dogs: A pilot study comparing three different lubricant eye drop formulations
Full text linkAim of this blinded, prospective, randomized clinical study was to compare three different lubricant eye drops (LED) in healthy adult dogs undergoing general anaesthesia (GA) for non-ophthalmic surgery. Tear production rate was monitored by means of Schirmer tear test-1 (STT-1), and incidence of post-operative corneal abrasions/ulcerations was detected by corneal staining. A complete ophthalmic examination was performed before premedication, at extubation time and 24 h after GA in twenty-five non-brachycephalic dogs (fifty eyes) undergoing elective orthopaedic or spinal surgery procedures. Dogs were randomly allocated to one of three groups receiving as prophylactic LED either carmellose sodium (GC), or 1% hyaluronic acid (GH), or 0.25% hyaluronic acid (GL). In each eye STT-1 was repeated every hour during GA, before instilling one drop of the assigned LED. In all groups STT-1 values drastically decreased during GA, while 24 h later nine eyes (18%) had STT-1 values lower than 15 mm/minute. All of the three formulations tested were fully effective in preventing corneal ulceration (0% in all groups), while 10% of eyes reported superficial de-epithelialization. Fluorescein staining demonstrated that hourly prophylactic LED application prevented exposure keratopathy during general anesthesia in 90% of the eyes in non-brachycephalic dogs
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