1,720,961 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    Conservative Treatment of Idiopathic Clubfoot. The Ponseti Method – Approved Standard // Консервативно лечение на вродено еквиноварусно ходило. Методът на Понсети-утвърден стандарт

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    Лечението на еквиноварусното ходило е едно от големите предизвикателства в съвременната ортопедична наука и практика. Натрупаният опит в широко прилаганите в миналото различни оперативни процедури е съпровождан с огромни разочарования от ранните и късни рецидиви с лош за ходилото функционален край. Съвременното изучаване на структурните особености в съединителната тъкан на новороденото извеждат на преден план през последните десетилетия няколко консервативни метода в лечението, при които честотата на усложненията са значително редуцирани. Методът на Понсети се утвърди като принципно нов консервативен подход с в лечението на еквиноварусното ходило. Следвайки точно правилата в изпълнението му, успеваемостта в лечението достига до 92% с минимален риск от рецидиви. Настоящото проучване потвърждава високата успеваемост, но и изследва детайлно грешките, които се допускат от лекаря специалист, както и всички други обстоятелства, възникващи по време на лечението, които са причина за неуспехи – грешки или рецидиви.All orthopedists who have faced with the problems of clubfoot, in the past and nowadays, share the same opinion that achieving a success is a difficult task, regardless the management is conducted conservatively or surgically. The fact determined to be essential is that the early start leads to better results. Modern studies have established the role of the so-called “embryonic myosin” which later is substituted with normal myosin while the child is growing. This protein has proven extremely susceptible to manipulation and very sensitive to surgical influence. Thus, gradually and gentle casting in a specific sequence manages to achieve the correction of ligaments, joint capsules and tendons; the rearranged tarsal and metatarsal bones are remodeled. At the same time, upon surgical accesses by different methods this protein is quickly converted to rough scar tissue, which deteriorates the functions of the operated foot even short term after surgery. The objective of this paper is to provide results of the treatment of idiopathic clubfoot by Ponseti Method which convincingly demonstrate that if conducted correctly, the method ensures success. Patients. This study included 165 children (228 feet) with clubfoot within the period from 2001 to 2016. The criteria for inclusion were idiopathic type of deformity for which no previous surgical methods of treatment have been conducted till this point. All of them were treated using the protocol described by Ponseti. Results. Strictly adhering to Ponseti protocol, 29 feet (13%) were treated only by casting, and the other 199 (87%) were treated by casting and subsequent Achilles tenotomy. The average number of castings - 8 ; Recurrences of equinus and adduction - 34 (15%) feet; a second relapse in 21 (9%) feet,; unsuccessful results - 7 feet Discussion. The results obtained (97% successful correction within the follow-up period) correlate with those of other authors in the short-term. The reasons for recurrences occurred were analyzed as the preponderant role was the improper maintenance of the abduction device in the post-casting period. Conclusions. The high final result of 97% corrected feet makes the Ponseti method much more successful and preferred both by doctors who undertake to treat congenital clubfoot and by parents of children with such disease

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    Potentials and Evaluations of Extracorporeal Shock Wave Therapy (Orthotripsy) Applied For Diseases and Injuries of the Limbs // Възможности и оценка на Екстракорпоралната шоково вълнова терапия (Ортотрипсия) при травми и заболявания на крайниците

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    Екстракорпоралната шоково вълнова терапия е нов метод, чието приложение в ортопедичната практика нараства постоянно. Основни направления, където тя се прилага, са забавено срастване или несрастване на кости, тендо или ентезопатии, като периартрит на раменна става, плантарен фасциит, хумерален епикондилит, както и по-нови сфери, като аваскуларната некроза на бедреа глава. Методът е с доказана ефективност, както на базата на класическите схващания за причиняване на микрофрактури или микролезии в увредените тъкани, така и с новите доказателства за биологичния ефект върху увредени и болезнени тъкани. Представените собствени резултати за костно възстановяване на псевдоартрози при средно 64 процента от пациентите, успехи при лечението на раменен периартрит - 75 процента, плантарен фасциит-71 процента, епикондилити - 69 процента, както и успешно лечение на аваскуларна некроза на бедрената глава в началните й фази - 54 процента , правят метода актуален за ортопедичната практика. Неговите безспорни предимства са неинвазивност, липса на странични нежелани действия, кратък период за възстановяване, ненарушаване на терена, в случай че се наложи оперативно лечение на следващ етап. Лекотата в изпълнение на процедурата правят ортотрипсията предпочитана за пациента методика на лечение. Не на последно място е и ниската цена в сравнение с оператините методи. Това е първият разширен труд на тази тема на български език, който представя повече от 130 референции към натрупания съвременен опит в тази ортопедична методика. Приложените протоколи за приложение в отделните заболявания прави настоящата работа ръководство за - приложение на ортотрипсията в ежедневната практика.Extracorporeal shock wave therapy is a new method in orthopedic practice steadily gaining consistent application. Main areas of its application are delayed bones adhesion or non-adhesion of the bones, tendo- or enthesopathy such as Periarthritis of the shoulder joint, Plantar Fasciitis, Humeral Epicondylitis, as well as in new areas such as Avascular Necrosis of the Femoral Head. The method was proven effective, based both on classical concept of causing micro fracture or micro lesions in damaged tissue, together with new evidence of biological effects on damaged and painful tissue. Based on researcher’s own results for bone recovery during Pseudarthrosis at an average 64 percent of patients, the success in treating Periarthritis - 75 percent, Plantar Fasciitis -71 percent, Epicondylitis - 69 rates, and successful treatment of Avascular Necrosis of the Femoral Head at its initial phase - 54 percent, makes the method popular in orthopedic practice. The method is non- invasive, shows lack of by-side adverse effects and there is a short period of recovery after application. These are some of its indisputable advantages together with an undistorted area left behind if surgery is required at a next stage. Its ease of execution and procedural rules make orthotripsy a prefereable patients’ treatment method. Last but not least is the low price to be taken into consideration compared to the surgical methods

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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
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