1,721,052 research outputs found
Conservative management of cocaine-packet ingestion: experience in Milan, the main Italian smuggling center of South American cocaine
No full textTo assess retrospectively the effectiveness and the safety of the conservative medical management of asymptomatic cocaine body-packers
Piezoresistive effects in MOS-FET useful for pressure transducers
No full textThe piezoresistivity coefficients in p- and n- channel MOS transitors manufactured on silicon wafers cut parallel to the (111) and (100) planes as a function of VD and VG and of the temperature, between-20 and 120 C, have been measured with the particular aim of investigating the possible application of MOS transistors for strain measurements, by comparing the advantages and the diadvantages with bulk and diffused resistors. The characteristics of the MOS devices can be consistently better than the corresonding ones of bulk semiconductor strain gauges, partucularly as regards the temperature stability of resistivity and the electrical charactristics
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
Impact of minimally invasive surgery on adrenalectomy for incidental tumors: comparison with laparotomic technique
No full textTo compare laparoscopic and laparotomic techniques for the excision of incidental adrenal tumors
Silicon diffusion in aluminium
No full textSilicon diffusion in aluminium thin films was measured using the configuration of in-
diffusion from two constant sources in a specimen of finite thickness. An electron microprobe
was used to measure the silicon distribution. The data in the temperature range 475–550 C
can be interpreted using the diffusion coefficien
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
Liver perfusion in multiorgan harvesting for transplantation
No full textIn 1984 Starzl described a technique of multiple organ in situ flushing and procurement from heart beating donors that was widely adopted by various transplantation institutions throughout the world. The same author has recently described a simpler, fast technique that seems to provide similar or better results. We report our experience of liver procurement with different procurement procedures
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
