1,720,984 research outputs found
[Arterial digital angiography in patients with supratentorial reversible ischemic arteriopathy].
No full text[Usefulness of magnetic resonance in truncal ischemia. A report of 2 clinical cases].
No full textTwo cases of pontine ischaemia located in the distribution area of the perforating paramedian branches are reported. In both cases the lesion was documented by nuclear magnetic resonance whereas the CAT scan was normal in both patients. Clinical symptoms correlated well with the site and extent of the lesion documented by MR
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
Occlusion of the extracranial internal carotid artery in the acute stroke; angiographic findings within 6 hours.
No full textWe studied by angiography 80 patients within 6 hours from the onset of symptoms of supratentorial ischaemic stroke. Occlusion of the internal carotid artery in the extracranial segment was found in 19 patients, at the bifurcation in 11 and at the cervical level in 8. While in the chronic phase of stroke, internal carotid artery occlusion in the cervical segment is an uncommon angiographic finding, we found a high frequency of occlusion at this level (8 out of 19) in our patients. Cervical segment occlusion may be due to a dissecting aneurysm or to an intracranial carotid artery occlusion (embolic or atherothrombotic) with subsequent migration of the clot down to this level. A direct embolic occlusion may be postulated as well
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
[X-ray computerized tomography aspects and clinico-pathogenetic correlates in cerebrovascular pathology in the acute phase].
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