1,721,118 research outputs found
The effect of ZnO nanoparticles morphology on the barrier and antibacterial properties of hybrid ZnO/graphene oxide/montmorillonite coatings for flexible packaging
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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
On the conceptual design of a macro micro robot manipulator for cochlear microrobot operations Koklear mikrorobot operasyonları için bir makro mikro robot manipülatörünün tasarımı
No full textÖZETRobotik teknolojilerinin tıp bilimlerinde kullanılması, başka türlü uygulanması mümkün olmayan birçok tedavi olanağını sağlamıştır. Bu alanda görülen teknolojik büyüme sayesinde, çeşitli tıbbi tanılar ve cerrahi operasyonlar için mikro robotların entegrasyonu gibi yeni çözümler önerilmeye başlandı. Aralarındaki tartışmalı senaryolardan biri, iç kulak içinde kök hücre uygulamaları ile kokleada bulunan saç hücrelerinin üretilmesi fikri olarak verilebilir. Bu fikir güncel tıp literatüründe çokça vurgulansa da, in vivo olarak dar koklear kanallara kök hücre transferi yöntemi hala belirsiz bir operasyondur. Bu nedenle, küçük olan koklear çalışma alanlarında tıbbi mikro robotların kullanımını sağlayacak olası yöntemlerin geliştirilmesi zorlu bir işlemdir. Buna müteakiben, mevcut tez, yapısal tasarımından önce, koklea içinde bulunan bağlantısız aktive edilen mikro robotun hareketini oluşturmak için uç efektöründe elektromanyetik aktüatör taşıyacak bir makro-mikro cerrahi robot manipülatörünün çalışma alanı karakterizasyonunu tanıtmaya çalışmaktadır. Tedavi sırasında insan kafasının manipülatör için doğal bir engel olacağından, hem engel boyutlandırmasını hem de koklear lokalizasyonunu ortaya çıkarmak için taranan iç kulak modeli ile yetişkin bireylerin antropomorfik verileri kullanılmıştır. Tez boyunca elde edilen veriler ve istenen hareket özellikleri yardımıyla manipülatörün mikro kısmının kısıtlı çalışma alanı ve çalışma alanı optimize edilmiş kavramsal yapısal tasarımı ortaya çıkarmak için kinematik sentez prosedürü önerilmiştir.ABSTRACTUtilization of robotics in medical sciences has initiated many treatment opportunities that are otherwise impossible to be applied. Thanks to exponential technological growth through the field, new solutions, such as the integration of microrobots for surgical operations, have been started to be proposed for a variety of medical cases. One of the controversial scenarios amongst them can be given as the idea of generating hair cells located in cochlea by utilizing stem cell applications inside inner ear. Although the idea emphasized a lot in current medical literature, method of stem cell transfer to the narrow cochlear canals in vivo is still an unclear operation. Thus development of any possible methods that will ensure the usage of medical microrobots in small cochlear workspace is a challenging procedure. In light of this, prior to its structural design, current thesis tries to introduce workspace characterization of a macro-micro surgical robot manipulator that will carry an electromagnetic actuator at its end effector in order to generate motion of untethered microrobot located inside the cochlea. Due to the fact that human head will be a natural obstacle for the manipulator during the treatment, anthropomorphic data of adult individuals were utilized along with the scanned model of inner ear for revealing both obstacle dimensioning and cochlear localization. Throughout the thesis by the help of acquired data and desired motion characteristics constrained workspace of the micro portion of the manipulator was proposed along with a kinematic synthesis procedure to reveal its workspace optimized conceptual structural design
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