1,721,375 research outputs found
L’interruzione di gravidanza: problematiche recenti a 45 anni dalla legge n. 194/1978
No full textSulle problematiche sottese alla concreta prassi applicativa – obiezione di coscienza; Evoluzione tecnica e scientifica ed emergenza sanitaria: l’aborto farmacologico; Sul regime di fornitura dei farmaci
contraccettiv
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
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Replacement of Hard Cr on AISI 316L Steel in Sliding Contacts for the Pharmaceutical Industry: Failure Analysis and Dry Sliding Tests
No full textAustenitic stainless steels (SS) such as AISI 316L are widely used in the pharmaceutical industry in components such as pumps and distributors. However, the poor tribological behaviour of SS 316L requires the use of coatings or surface hardening techniques. Among overlay coating, also electroplated hard chromium coatings have been applied for improving the tribological behaviour of SS 316L. However, hard chromium plating is today recognized as a major source of environmental pollution and different solution for its replacement are available. In the present work, several alternatives are compared, concerning a SS 301 vs. SS 316L contact in packaging components for solid dose processing, where the surface modifications are applied to the SS316L rotating component, dry sliding against a stationary SS 301 part. In particular, the tribological performance of thermal spray coatings (Air Plasma Sprayed (APS) Al2O3-13TiO2 and High Velocity Oxy-Fuel (HVOF) WC-17Co) deposited onto SS 316L is compared with that of the same steel, thermochemically treated by Low Temperature Carburised (LTC). The main advantage of LTC is the ability to increase the hardness of the austenitic steel, owing to the formation of carbon-supersaturated austenite, without adversely affecting corrosion resistance.
In the first step of the work, failure analysis techniques, such as 3-D digital microscopy and SEM/EDS, were used for identifying the main wear mechanisms in components from the SS301/Cr-coated SS 316L contact of the packaging device. Subsequently, laboratory dry sliding tests by a flat-on-cylinder tribometer were carried out, so as to investigate and compare the tribological behaviour of alternative solutions for the replacement of hard Cr. Both Hard Cr and thermal sprayed coatings or LTC treated SS 316L were used as the rotating cylinder, whereas the stationary slider consisted of SS 301. Tests were carried out at room temperature, with applied loads ranging from 5 to 15 N, sliding speed of 0.3 m s-1 and a sliding distance of 1000 m. Among the alternatives for the replacement of hard Cr, LTC treated SS 316 L showed the better tribological behavior in terms of wear (even slightly lower than hard Cr), also leading to lower wear rates in the SS 301 counterpart
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
