1,720,968 research outputs found
Evaluation of fetal pulmonary maturity by gas-chromatographic analysis of amniotic fluid palmitic acid/stearic acid (P/S) ratio
No full textGas-chromatographic analysis of the fatty acids (P/S ratio) in 212 samples of amniotic fluid, 35 samples of vernix caseosa and 35 samples of the pellets obtained after centrifugation of the amniotic fluid were carried out to evaluate the effects of contaminants that might be present in amniotic fluid on the P/S ratio. The P/S ratio is used as an index of the degree of maturity of the fetal or neonatal lungs. Analysis of variance applied to the means of the P/S values for each of above materials showed them to be significantly different and attests to the importance of centrifugation for obtaining valid results. We propose a standard procedure of centrifugation for 60 minutes at 3500 X g followed by extraction and gas-chromatography as a rapid, valid way to measure the P/S ratio
Measurement error of absolute CD4+ T lymphocyte count double platform evaluations for the assessment of laboratory performance in lymphocyte immunophenotyping quality control (QC)
No full text[Evaluation of arachidonic acid in amniotic fluid before and during labor]
No full textArachidonic acid is considered to be one of the precursors in prostaglandin synthesis. For this reason, arachidonic acid was measured in a series of amniotic fluid. Samples in order to rest the hypothesis that the beginning of uterine activity is accompanied by a rise of its concentration. In fact, it could be shown that in amniotic fluid from patients in labor arachidonic acid levels are much higher than in amniotic fluid from patients without uterine activity
Formation kinetics of the lidocaine metabolite (MEGX) in patients with chronic active hepatitis and cirrhosis
No full textFibrinolisi Sistemica in Pazienti con Angina Instabile Refrattaria
No full textTerapia medica Sperimentale in Pazienti con Angina Instabile
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
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