1,720,999 research outputs found
Interface Pressures at the Bridge of the Nose: Prevention and Treatment
No full textNoninvasive ventilation (NIV) has assumed a prominent role in the treatment of patients with both acute and chronic respiratory failure. The correct choice of the interface (type and size of the mask) to be used is fundamental both for NIV effectiveness, but also to prevent any complications including injuries and facial pressure ulcers. The nose is the most frequent site of the appearance of skin breakdown and ulcers. When the interface for NIV is applied incorrectly, the high pressure generated to the bridge of the nose leads to skin breakdown and pressure ulcer formation. Necrosis can extend to deeper structures such as subcutaneous tissues, cartilage and nasal bones leading to permanent damage. For these reasons, the nasal and/or oronasal mask must be carefully chosen by the physician based on the patient’s characteristics and environmental factors. Furthermore, the healthcare staff in hospitalized patients, the patient himself, and his caregivers must all be trained to recognize any critical issues and to use different approaches for preventing nasal lesions. Besides, health-care staff must be able to recognize and treat any nasal lesions early before they are complicated with ulcers and irreversible lesions. The lack of attention to these seemingly trivial factors can lead to NIV failure and permanent damage that may be susceptible to legal remedies
Commentary on "Major Complications Associated with Conventional Transbronchial Needle Aspiration"
No full text
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
Tra scettici e adattazionisti: nuovi sviluppi nello studio dell’evoluzione del linguaggio
No full textIl dibattito sull’evoluzione del linguaggio umano si è cristallizzato
intorno a una diatriba, che rischia di essere sterile, tra scettici (ben rappresentati
da un recente articolo provocatorio a opera di Hauser et al.) e
adattazionisti convinti che il linguaggio sia solo un istinto o un modulo
gradualmente evolutosi per selezione naturale come “adattamento per”
funzioni generali della comunicazione. In questo articolo analizzeremo
criticamente entrambe le posizioni e proporremo due casi come esempi
di una possibile “terza via”
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
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