1,721,087 research outputs found
Home treatment of infection-related acute respiratory failure in kyphoscoliotic patients on long-term mechanical ventilation
No full textBACKGROUND: In patients with kyphoscoliosis, long-term mechanical ventilation improves chronic
alveolar hypoventilation during spontaneous breathing, improves quality of life, decreases the need
for hospitalization, and improves survival. In these patients respiratory infection can precipitate
acute respiratory failure (ARF) that requires hospitalization. OBJECTIVE: To study the possibility
of home treatment of infection-related ARF in kyphoscoliotic patients on long-term mechanical
ventilation. METHODS: During a period of 4 years, 8 kyphoscoliotic patients (3 women, 5 men,
mean SD age 61 10 y, mean Cobb angle 84 7°), who had been using overnight mechanical
ventilation (delivered by either volume-limited [4] or pressure-limited [4] ventilators) for
31 32 months, developed infection-related ARF. Seven patients agreed to be treated at home, with
an increase of the daily duration of mechanical ventilation to > 20 hours, and antibiotics. Blood
oxygen saturation was monitored via pulse oximetry during mechanical ventilation and overnight,
to determine whether to add or increase supplemental oxygen. A nurse, a general practitioner, and
a chest specialist made scheduled visits to each patient. RESULTS: All 7 patients were successfully
treated at home. In 2 patients supplemental oxygen flow was slightly increased. Two patients who
had not previously been receiving supplemental oxygen received supplemental oxygen for a few
days. The patients progressively decreased the daily duration of mechanical ventilation, according
to their ability to breathe comfortably without mechanical assistance, under the supervision of the
medical staff, and they all returned to their baseline (pre-ARF) condition in 4 weeks. CONCLU-
SION: In kyphoscoliotic patients on long-term mechanical ventilation, home treatment of infection-
related ARF is possible and effective, provided there is adequate collaboration by the patients and
their relatives, and staff well-trained in mechanical ventilation and other aspects of the home care
of these patients
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
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
Natalizumab and cognitive impairment in multiple sclerosis: report of the therapeutical success in two patiens
No full textGlossopharyngeal breathing can allow a lung expansion greater than inspiratory capacity in muscular dystrophy
No full textCo-existence of GNE gene mutation in a case of genetically defined oculopharingeal dystrophy
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