1,721,028 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Assessing Gender Equality in Italian Animal Science: A Case Study on Academic Careers and Research Outcomes
Get PDFThis paper focuses on gender issues within the Italian Animal Science and Production Association (ASPA), which includes both academic and non-academic researchers involved in animal sciences. Data from the association’s archives in 2023 and bibliometric data obtained from Scopus and Web of Science were used. This study highlighted how within the ASPA and in that part of the academic realm falling within the field of animal science, a noticeable gender gap still exists, albeit decreasing over time at a very slow pace. There is clear vertical segregation, with a minority of women occupying full professor positions, and horizontal segregation with a low percentage of women involved in animal science disciplines closer to STEM fields, such as “Animal breeding and genetics”. At the bibliometric level, gender differences in bibliometric indicators are observed, favouring men, although these differences are not significant when considering the academic position, scientific sector, and age. In the official journal of the ASPA (Italian Journal of Animal Science), women are under-represented in prestigious positions such as first, last, and corresponding authors. Scientific societies, academic institutions, and research organizations are called upon to do their part to accelerate the process of overcoming these inequalities
The Valdostana goat: a genome-wide investigation of the distinctiveness of its selective sweep regions
No full textThe Valdostana goat is an alpine breed, raised only in the northern Italian region of the Aosta Valley. This breed’s main purpose is to produce milk and meat, but is peculiar for its involvement in the “Batailles de Chèvres,” a recent tradition of non-cruel fight tournaments. At both the genetic and genomic levels, only a very limited number of studies have been performed with this breed and there are no studies about the genomic signatures left by selection. In this work, 24 unrelated Valdostana animals were screened for runs of homozygosity to identify highly homozygous regions. Then, six different approaches (ROH comparison, Fst single SNPs and windows based, Bayesian, Rsb, and XP-EHH) were applied comparing the Valdostana dataset with 14 other Italian goat breeds to confirm regions that were different among the comparisons. A total of three regions of selection that were also unique among the Valdostana were identified and located on chromosomes 1, 7, and 12 and contained 144 genes. Enrichment analyses detected genes such as cytokines and lymphocyte/leukocyte proliferation genes involved in the regulation of the immune system. A genetic link between an aggressive challenge, cytokines, and immunity has been hypothesized in many studies both in humans and in other species. Possible hypotheses associated with the signals of selection detected could be therefore related to immune-related factors as well as with the peculiar battle competition, or other breed-specific traits, and provided insights for further investigation of these unique regions, for the understanding and safeguard of the Valdostana breed
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Genomic insights into the recent evolution and biodiversity of Italian sheep breeds
No full textItaly hosts a remarkable ovine biodiversity shaped by centuries of history, regional traditions, and environmental heterogeneity. This diversity sustains agricultural production as well as ecosystem services and cultural heritage. Yet, many
local breeds are undergoing severe demographic decline. To explore these dynamics, we analyzed census data from all
registered Italian sheep, which revealed highly variable situations across breeds but confirmed that most are currently at
risk of extinction. To complement this picture, we genotyped 34 Italian sheep populations using the Ovine50K BeadChip
and compared them with foreign breeds with recognized herd books in Italy. Genomic analyses of diversity (including
inbreeding and effective population size), population structure, and genomic background provided insights into the state
of genetic variation and relationships among breeds, including patterns of introgression. By comparing these results with
data from populations sampled twenty years ago, we assessed temporal changes in diversity, genomic background, and
selection signatures. Fst analyses highlighted genomic regions that have undergone the most marked shifts, allowing us
to explore associated genes and QTLs. Correlations between Fst and environmental changes across 20 variables further
emphasized the role of local adaptation in shaping genomic landscapes. In addition, local ancestry inference in two breeds
(Gentile di Puglia and Nera di Arbus) with evidence of recent admixture identified genomic regions influenced by gene
flow. Overall, our study illustrates the complex evolutionary dynamics of Italian sheep breeds and underscores the importance of integrating demographic analyses with genomic tools to guide their conservation and sustainable management
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
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