1,721,030 research outputs found
XPS BINDING-ENERGIES AND NET ATOMIC CHARGES - CNDO, EHT AND ABINITIO CORRELATIONS FOR SUBSTITUTED AZOLIDINES
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Verification of layered structures in SnO2/metal based gas sensors by x-ray microanalysis
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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
X-ray photoelectron spectroscopy characterization of stain-etched luminescent porous silicon films
No full textThe surface and in-depth chemical nature of the photoluminescent stained Si layer obtained with a novel procedure based on HF/HNO3 is presented. Oxide-free porous Si surfaces result from controlled preparation, storing and handling of samples, as revealed by parallel X-ray photoelectron spectroscopy and X-ray-induced Anger electron spectroscopy measurements, coupled with Ar+ ion sputtering. The present findings support the model for the porous layer of oxidized samples of Si grains embedded in a silica gel matrix
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