1,721,006 research outputs found
Childhood and adolescent migraine: a neuropsychiatric disorder?
No full textMigraine is a neurological disorder characterized by unilateral head pain, nausea and/or vomiting and
altered sensory perception (particularly phono- and/or photophobia). It is a common and disabling condition
in children and adolescents, just as it is in adults; its origins, pathophysiology and long-term course
are still not fully understood.
Biological factors are currently held to be crucial in the aetiopathogenesis of primary headaches, such
as migraine. In children and adolescents, we hypothesize that for migraine to develop, life events and
their psychological processing are fundamental and can act in two different ways: either as a predisposing
factor, inducing a chronic state of anxiety or depression (even subclinical), or as a trigger factor, activating
a cascade of psychological events which, in turn, activate the biological mechanisms that produce
the migraine attack. According to our hypothesis, psychological processing of life events (i.e. how the
child perceives and mentally processes them) is the main factor in migraine aetiopathogenesis. This
hypothesis has important implications in terms of diagnostic and therapeutic choices for children and
adolescents with migrain
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
Migraine and tension-type headache in childood and adolescence: is the psychotherapeutic approch more or less effective than traditional outpatient treatment? A controlled trial.
No full textDiscriminative ability and diagnostic utility of standardized diagnostic instruments for children in a clinical setting
No full textAbstract in formato elettronic
Pharmacological treatment of anorexia nervosa: a retrospective study in preadolescents and adolescents.
No full textVariations 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
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