1,721,125 research outputs found
Alfa-interferon in the treatment of essential thrombocythemia: clinical results and evaluation ofits biological effects on the hematopoietic neoplastic clone. Italian Cooperative Group on Essentyal Thrombocytemia
No full textThrombotic thrombocytopenic purpura: relapse and pregnancy
No full textThrombotic thrombocytopenic purpura: relapse and pregnanc
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
Procoagulant cellular activity and disseminated intravascular coagulation in acute non-lymphoid leukaemia
No full textProcoagulant cellular activity (PCA) in the classification of acute leukemia.
No full textThe procoagulant cellular activity (PCA) of leukemic cells was evaluated, before and after endotoxin stimulation, in 38 patients with acute leukemia at presentation subdivided according to the FAB classification. In the M4 and M5 subgroups the stimulated leukemic cells showed a significant increase in the production of PCA compared with freshly isolated cells. No evident PCA was documented in M1 and M2 AML as well as in the majority of acute lymphoid leukemias tested, both before and after endotoxin stimulation. The myeloid and lymphoid leukemic cells appear to behave similarly to normal leucocytes, within which only monocyte/macrophages are capable of producing PCA following endotoxin stimulation. These findings suggest that in human leukemic cells the endotoxin-induced production of PCA may be considered a indicator of monocyte/macrophage differentiation and thus represent a valuable diagnostic tool in the classification of acute leukemias
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