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The use of the laryngeal tube disposable (LT-D) by paramedics during out-of-hospital resuscitation-An observational study concerning ERC guidelines 2005
No full textIn the current guidelines of the European Resuscitation Council (ERC), tracheal intubation. as an instrument for securing the airway during resuscitation, has become less important for persons not trained in this method. For those persons, different supraglottic airway devices are recommended by the ERC. The present investigation deals with the application of the laryngeal tube disposable (LT-D) during pre-hospital resuscitation by paramedics. Methods: During a period of 2 years (2006-2008), we registered all cardiac arrest situations in which the LT-D had been applied according to the ERC guidelines 2005. Therefore, we investigated one emergency medical system in Germany. Results: During the defined period, 92 resuscitation attempts, recorded on standardised data sheets, were included. The LT-D was used in 46% of all cardiac arrest situations. Overall, the LT-D was successfully inserted in more than 90% of all cases on first attempt. In 95% of all cases, no problems concerning ventilation of the patient were described. Conclusion: As an alternative airway device recommended by the ERC in 2005, the LT-D may enable airway control rapidly and effectively. Additionally, by using the LT-D, a reduced "no-flow-time" and a better outcome may be possible. (c) 2008 Elsevier Ireland Ltd. All rights reserved
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
The use of the laryngeal tube disposable by paramedics during out-of-hospital cardiac arrest: a prospectively observational study (2008-2012)
No full textThe Summary In the previous and the current guidelines of the European Resuscitation Council (ERC), endotracheal intubation (ETI), as an instrument for ventilation during resuscitation, was confirmed as less important for paramedics not trained in this method. For those, during resuscitation, the laryngeal tube is recommended by the ERC as a supraglottic airway device. The present study investigated prospectively the use of the laryngeal tube disposable (LT-D) by paramedics in prehospital emergency cases. Methods During a 42-month period (Sept 2008-Feb 2012), we prospectively registered all prehospital cardiac arrest situations in which the LT-D had been applied by paramedics (from one emergency medical service in Germany). Results During the defined period, 133 attempts, recorded on standardised data sheets, were enrolled into the investigation. Three were excluded from the study because of use during a trauma situation. Therefore, 130 patients were evaluated in this study. For this, the LT-D was used in 98% of all cases during resuscitation, and in about 2% of other emergencies (eg, trauma). With regard to resuscitation, adequate ventilation/oxygenation was described as possible in 83% of all included cases. In 66% of all cases, no problems concerning the insertion of the LT-D were described by the paramedics. No significant problems were reported in 93%. In 7% (n=9 cases), no insertion of the LT-D was possible. Instead of bag-mask-valve ventilation, the LT-D was used as a first-line airway device in about 66%. Between the two defined groups, no statistically significant differences were found (p>0.05). Conclusions As an alternative airway device during resuscitation, recommended by the ERC in 2005 and 2010, the LT-D may enable ventilation rapidly and, as in most of our described cases, effectively. Additionally, by using the LT-D in a case of cardiac arrest, a reduced 'hands-off time' and, therefore, a high chest compression rate may be possible. Our investigation showed that the LT-D was often used as an alternative to bag-mask-ventilation and to ETI as well. However, we were able to describe more problems in the use of the LT-D than earlier investigations. Therefore, in future, more studies concerning the use of alternative airway devices in comparison with ETI and/or video-laryngoscopy seem to be necessary
Variations on the Author
Get PDF“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
Get PDFWe 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
Get PDFWe 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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