1,720,966 research outputs found
Detection of clonal T cell populations with closely related T cell receptor junctional sequences in persons at high risk for human immunodeficiency virus (HIV) infection and in patients acutely infected with HIV
gammadelta T lymphocytes in the peripheral blood of patients with tuberculosis with and without HIV co-infection.
High prevalence of GB virus C infection in a group of Italian patients with hepatitis of unknown etiology.
Prevalence of the recently discovered GB virus C(GBV-C) was evaluated in a cohort of 49 Italian patients with acute or chronic hepatitis of unknown etiology (non-A-E hepatitis) and in a control group of 100 healthy blood donors. The GBV-C genomes could be detected by polymerase chain reaction (PCR) with reverse transcription in 35% of the acute and 39% of the chronic hepatitis patients; only 1 of the control subjects had a positive response. All PCR products hybridized with a specific probe in a colorimetric assay, and the analysis of the sequences of the amplified cDNAs fully confirmed the specificity of the assay. Furthermore, the alignment of the predicted translation products identified two recurrent amino acid substitutions in 6 patients, suggesting the possible existence of at least 2 different GBV-C subtypes. Thus, GBV-C may be an important agent, contributing, at least in Italy, to a significant number of the cases of hepatitis of unknown etiology
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
“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
Effect of highly active antiretroviral therapy (HAART) and hepatitis C Co-infection on hyperlipidemia in HIV-infected patients: a retrospective longitudinal study
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