1,721,002 research outputs found
Unilateral facial palsy in an adolescent with guillain-barré syndrome
No full textGuillain-Barré syndrome (GBS) is the most common and most severe acute demyelinating polyneuropathy with ∼0.8 to 1.1/100,000 incidence in pediatric population. Unlike adult patients, incidence of facial nerve involvement in children with GBS has not yet been determined possibly because of rare use of magnetic resonance imaging in childhood-onset GBS. In the present study, we describe a girl with GBS who presented unilateral peripheral facial palsy, confirmed by neuroimaging and electrophysiological evaluation. We suggest that both neuroimaging and detailed electrophysiological evaluation should be integrated into the work-up of such patients. We also wish to highlight the importance of evaluating cranial nerve involvement as a potential indicator of severity of disease
Intraventricular hemorrhage in preterm newborn: Predictors of mortality
No full textBACKGROUND AND AIM: Intraventricular haemorrhage (IVH) is a cause of morbidity and mortality in preterm infants. It occurs primarily in preterm newborns with an incidence of about 20% and, despite the evolution of neonatal care that allows more and better survival, continues to be a cause of morbidity and mortality in all intensive care units. Our research aimed to evaluate the independent risk factors of mortality and the relative odds ratio for each degree of IVH. METHODS: In this retrospective study were included 96 preterm infants, born between 23^ and 36^ weeks of gestational age, which developed IVH of degree two-three-four diagnosed by means of cranial ultrasound. It was made a comparison within the sample by distinguishing the group with IVH degree two from degrees three and four. RESULTS: IVH of degree three and four was independently associated with mortality. We found a higher number of deaths in the GAs <= 26 weeks (p <0.01), which was also an independent predictor of mortality. CONCLUSION: With this study it was further highlighted the high mortality of patients with an elevated degrees of IVH and low birth weight and early gestational age. These data, of important clinical relevance, oblige us to find new therapeutic strategies aimed at reducing the serious consequences of that disease
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
The complex relation between executive functions and language in preschoolers with developmental language disorders
Full text linkBackgrounds: The relationship between linguistic difficulties and cognitive impairments in children with developmental language disorders (DLDs) is receiving growing interest in international research. Executive functions (EF) appear to be weak in these children. The current investigation aims at exploring the relationship between difficulties in two components of EF (i.e., updating and inhibition) and the linguistic and narrative skills of 16 DLD preschoolers matched with 24 typically developing peers. Methods: Updating skills were tested by administering the forward and backward digit recall subtests of the Wechsler Scales, while children’s inhibition abilities were assessed by completion of Developmental Neuropsychological Assessment (NEPSY-II) inhibition tasks. Information on the linguistic skills of the participants was collected through a set of subtests included in the Batteria per la Valutazione del Linguaggio in bambini dai 4 ai 12 anni (Batteria per la Valutazione del Linguaggio; BVL_4-12), assessing articulatory and phonological discrimination skills, lexical production/comprehension, grammatical production/comprehension, and narrative production skills. Results: Findings revealed that DLD children performed significantly lower than their peers on both updating and inhibitory tasks. Linguistic difficulties were found in the DLD group on articulatory/phonological skills, grammatical production/comprehension, and lexical informativeness on narrative production. Measures of EF correlated with linguistic and narrative measures. Conclusion: The current study confirms a significant association between DLD’s performances on EF and displayed linguistic skills, suggesting the need to include the assessment of executive functions to target early intervention rehabilitation programs for children with DLDs
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