1,720,986 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
Ventriculostomia prin lama terminală în cadrul intervenţiei pentru anevrism cerebral erupt
Full text linkEste descrisă o tehnică nouă de ventriculostomie translamina terminalis. Această tehnică se utilizează de obicei în intervenţii pentru anevrisme erupte, în faza acută. Inovaţia are ca scop reducerea ratei complicaţiilor cauzate de hemoragia
subarahnoidiană anevrismală, în special cu extindere în sistemul ventricular, în perioada postoperatorie precoce. Studiul a constat din 13 pacienţi care au fost operaţi cu anevrisme intracraniene erupte, la care paralel s-a efectuat fenestratrea
LT cu ventriculostomie translamina terminalis. A fost plasat un cateter intraventricular în ventricolul III, fi xat şi conectat la un sistem de drenare externă pentru monitorizarea ulterioară a tensiunii intracraniene(TIC) si/sau drenare de LCR.
Date despre drenarea şi sanarea LCR s-a obţinut în toate cazurile. Complicaţii legate de această procedură nu s-au înregistrat. Ca rezultat, am obţinut o însănătoşire mai timpurie şi cu un scor GOS mai bun la aceşti pacienţi, comparativ cu grupul de pacienţi cărora nu li s-a efectuat această procedură. Stomia ventricolului III prin lamina terminalis este o procedură simplă şi o tehnică usoară care poate fi utlizată ca o alternativă ventriculostomiei convenţionale. Această tehnică poate fi indicată în cazurile cînd ventricolul nu este accesibil prin alte tehnici (în cazul utilizării pentru clipare a anevrismului a abordului supraorbital keyhole) şi cînd decizia de a efectua ventriculostomia este luată la fi nele operaţiei de clipare de anevrism
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
The Microneurosurgical Treatment of Supratentorial Cerebral Aneurysms, Technical Issues and Modern Strategies
Full text linkCatedra neurochirurgie, USMF„Nicolae Testemiţanu”
Institutul Neurologie şi Neurochirurgie, ChişinăuIn the past fifteen years endovascular procedures have gradually been replacing neurosurgical approaches in treating some types of intracranial aneurysms. Improved coil and stent technology offers an endovascular cure for more complex intracranial aneurysms [8]. This could be another knock−down for vascular neurosurgery, and for the whole of neurosurgery because neurosurgeons will continue losing important operative techniques and skills.
Among these, the most commonly used craniotomy is the supraorbital keyhole, with a skin incision most often positioned in the eyebrow. Different authors have developed their own modifications of the skin incisions, as well as craniotomy position and techniques to enhance exposure [9,28].
In ultimii 15 ani procedurile endovasculare sunt tot mai des preferate abordurior chirurgicale în tratamentul unor tipuri de aneurisme intracraniene[8]. Este un semnal alarmant pentru neurochirurgia vasculara, cît şi pentru intreaga neurochirurgie, deoarece neurochirurgii continuă să piardă tehnici operatorii importante.
Craniotomia „Keyhole” poate fi executată în regiunea supraorbitală , temporală, retrosigmoidiană, şi interemisferică anterioară. Totuşi cea mai des utilizată craniotomie prin „keyhole” este cea supraorbitală, incizia pielii efectuindu-se prin sprinceană [9,28]
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
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