1,721,540 research outputs found
The story of Henrietta Lacks: an opportunity to make up for past mistakes
No full textAt the present time, when COVID-19 is disproportionately affecting black people in several countries, the Henrietta Lacks centennial year reminds us of our responsibility to strive for a fairer era of research. The cells of Henrietta Lacks, which were taken without her consent, have been reproduced billions of times for medical purposes. The Henrietta Lacks anniversary urges us to face an issue that is still unsolved, since consent to the collection of patients’ data, the methods of their archiving and their possible dissemination remains a complex question that is still largely outstanding. In addition, in this pandemic era, the anniversary constitutes an opportunity to make up for past injustices and discrimination of the healthcare system
Diabetes in the third millennium: Prognosis improves, but juvenile forms are more frequent.
No full textno abstrac availabl
Influence of water table, irrigation and rootstock on transpiration rate and fruit growth of peach trees
No full textIn a peach orchard (cv. Maria Aurelia) grafted on seedling and GF677, transpiration and absolute fruits growth rate were tested as indexes of temporary water stresses with different water table levels and irrigation regimes. The treatments tested were: shallow and deep water table (85 cm and 225 cm), irrigation with 100% ETe and no irrigation at all. A correlation between transpiration rate and water table levels was not found, although different patterns were obtained for different rootstock and irrigation regimes. Differences in the absolute growth rate were found between the irrigation regimes at different water table level
Biochemical markers and microbiology in post-mortem diagnosis of sepsis: A systematic review
No full textIn many circumstances the forensic pathologist can question whether the dead person experienced sepsis, which caused or contributed to death. The autopsy of a death related to sepsis is a difficult task for the forensic pathologist due to the lack of typical pathological factors as well as clinical and circumstantial information about death. Several authors underlined how forensic biochemistry and microbiology could help in diagnosing a death related to sepsis. The research we carried out analyses the main scientific studies in literature, primarily tracing biochemical markers evaluated to help diagnosing a death related to sepsis. This review analyses the main problems linked to forensic microbiology investigations, whose results are burdened by heavy issues concerning their interpretation, above all when clinical and circumstantial data are lacking
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
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