1,720,973 research outputs found
Status dystonicus: management and prevention in children at high risk
Full text linkStatus dystonicus (SD) is a movement disorder emergency associated with significant morbidity and life-threatening events that requires immediate and effective treatment. Nevertheless, SD is currently an under-recognized and undertreated condition, partly due to the lack of a standard definition and because it can be the acute complicated course of both primary and secondary dystonias. In subjects with SD, due to the delay of identification and lacking prevention of trigger and precipitant factors, intensive care management is consistently required
Myoclonic epilepsy of infancy related to YWHAG gene mutation: towards a better phenotypic characterization
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
Risposta non drenata di terreni piroclastici sotto sollecitazioni monotone e cicliche. IARG2022.
Full text linkLa presenza di terreni piroclastici influenza significativamente la vulnerabilità del territorio nei confronti di eventi
estremi di carattere sia idrogeologico che sismico. I depositi piroclastici hanno generalmente una struttura
metastabile e collassabile, che può portare alla loro liquefazione sotto carico monotono, ciclico e dinamico. La
loro struttura potrebbe essere in parte attribuita alla natura delle particelle piroclastiche ed al meccanismo di
deposizione che conferiscono alle particelle particolari caratteristiche di leggerezza, fragilità e porosità interna.
Nella definizione della risposta di tali depositi, particolare attenzione è stata dedicata all’analisi dei meccanismi di
accumulo delle sovrappressioni neutre in condizioni non drenate, finalizzata alla definizione della suscettibilità
alla liquefazione. La sperimentazione condotta ha indicato la possibilità di inquadrare la risposta dei terreni
piroclastici all’interno della teoria dello stato stazionario. Il confronto tra i risultati ottenuti dalle prove triassiali
non drenate monotone e cicliche eseguite su diversi terreni piroclastici, ha permesso di spiegare il meccanismo di
accumulo delle sovrappressioni neutre in condizioni non drenate utilizzando il parametro di stato Ѱ. Tale parametro
sembra essere utile anche per confrontare i risultati ottenuti con quelli ottenuti su sabbie ordinarie. Il parametro di
stato Ѱ ha un chiaro significato fisico e può facilmente essere implementato in un modello più affidabile di
accumulo di sovrappressione neutra non drenata e di valutazione della liquefazione
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
CMV-associated axonal sensory-motor Guillain-Barré syndrome in a child: Case report and review of the literature
No full textBACKGROUND:
Guillain-Barré syndrome is the most frequent cause of flaccid paresis in Western countries. Moreover, CMV infection is the most common antecedent viral infection in adult patients and the presence of specific IGM antiganglioside antibodies is often identified. Instead, Guillain-Barré syndrome following CMV infections is rarely reported in childhood and often presents severe symptoms at onset and longer recovery times.
MATERIAL AND METHODS:
One year of clinical, electrophysiological and serological follow-up of a 9-year old child with axonal sensory-motor Guillain-Barré syndrome following CMV infection is reported. Moreover, the literature data on paediatric sensory-motor axonal GBS and GBS secondary to CMV infection and antiganglioside antibodies are reviewed.
RESULTS:
Our patient presented with paraesthesias and a pattern of weakness showing proximal predominance and affecting the upper limbs more than the lower limbs. At nadir, unilateral facial palsy was also present and he was unable to walk. Electroneurography showed motor-sensory axonal damage. Both anti-CMV and anti-GM2 IgM were positive. After early treatment with IVIG and IV methylprednisolone the patient recovered deambulation. Six months later, his neurological examination was normal and electroneurography showed normal data.
CONCLUSION:
The sensory-motor axonal form of Guillain-Barré syndrome following CMV infection may present a good prognosis and a prompt full recovery also in children, if adequate treatment is started in time
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