1,721,048 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
Célhőmérséklet a tartós újraélesztés utáni komplex intenzív kezelés során. Állásfoglalás az enyhe terápiás hypothermia mellett = Long term survival of successfully resuscitated patients is primarily determined by their post-cardiac arrest neurological function
Full text linkAbsztrakt:
A keringésmegállásból sikeresen újraélesztett betegeknél a hosszú távú túlélést
elsődlegesen a beteg postresuscitatiós residualis neurológiai károsodása
határozza meg. Amennyiben a beteg hosszan tartó újraélesztést követően a
keringésmegállás utáni szindróma (PCAS – post-cardiac arrest syndrome) részeként
tartósan kómában marad, szervspecifikus intenzív kezelésben kell részesíteni,
melynek célja a beteg hemodinamikai állapotának stabilizálása, a szervperfúzió
normalizálása és a sejtszintű károsodások megelőzése. A PCAS-kezelés egyik
alappillére e betegeknél az agy hypoxiás károsodásának megelőzése kontrollált,
célzott, terápiás enyhe hypothermiás kezeléssel (THT). E kezelés a hypothermia
okozta fiziológiás változások miatt fokozott monitorozást és speciális intenzív
beavatkozásokat igényel, melyek sokszor gátolhatják a kezelés gyakorlati
alkalmazását. A 2013-ban megjelent, célhőmérséklet-orientált kezelést célzó (TTM
– targeted temperature management) vizsgálat azonban megkérdőjelezte a
THT-kezelés szükségességét, ami megváltoztatta az intenzíves társadalom eddigi
PCAS-kezelési gyakorlatát. A jelen cikk célja a két módszer létjogosultságának
összevetése, valamint a THT magyarországi implementációs lehetőségeinek és a
THT-finanszírozásnak a gyakorlati bemutatása. Orv Hetil. 2019; 160(46):
1840–1844.
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Abstract:
If the patient undergoes a long-term resuscitation or remains comatose as part of
the post-cardiac arrest syndrome (PCAS), organ-specific intensive care is urged
to aim hemodynamic stabilisation, normalisation of organ perfusion and
prevention of injuries at cellular level. One of the basic measures of PCAS
intensive care is to prevent hypoxic brain injury by mild therapeutic
hypothermia (THT). The physiological changes of the human body at hypothermic
conditions require high level monitoring and specially focused intensive care
limiting its implementation. The multicentric, controlled, randomized targeted
temperature management (TTM) trial published in 2013 compared the TTM against
the THT in the treatment of PCAS patients. The equal outcome of the 2 methods
has partly changed the practice of the intensivists in the treatment of such
patients. This manuscript gives the pros and cons for each therapeutic method in
post-resuscitation therapy. Nevertheless, the author shows the possible
implementations and the DRG (diagnosis-related group) reimbursement of the
method in Hungary. Orv Hetil. 2019; 160(46): 1840–1844
Intensive management of electrical storm and incessant ventricular arrhythmias
No full textAbstract
Electrical storm (ES) is defined as ventricular tachycardia or ventricular fibrillation occurring at least three times in 24 h leading to hemodynamic unstable state that needs cardioversion or defibrillation. ES may cause fast hemodynamic impairment, leading to “low-perfusion” or “no perfusion” state of the organs, a vicious circle pointing toward cardiogenic shock, multi-organ failure, and pulseless electrical activity. ES in ICD patients may be a strong predictor of arrhythmic and nonarrhythmic death, as well as of rehospitalization. The first step is to start cardiopulmonary resuscitation to achieve complete hemodynamic stabilization to prevent the low-flow or no-flow state. The patient has to be transported to an intensive care unit for further specific treatment. The arrhythmia should be treated with specific antiarrhythmic agents, for example, amiodarone, lidocain and bretylium, and then all the reversible causes have to be detected and treated as fast as possible. Underlying heart disease determines the specific treatment such as coronary revascularization, mechanical circulatory and respiratory support, and ablation of the arrhythmic foci.</jats:p
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
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