1,720,981 research outputs found

    Per un approccio bioarcheologico al caso di Sant'Antioco di Bisarcio (Ozieri, SS): tra archeologia, antropologia fisica e paleopatologia

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    The PhD project is focused on the bioarchaeological analysis of a cemeterial area in use from the second half of the 1300s and the end of the 1700s in the medieval site of Bisarcio, in the North of Sardinia (Italy), seat of a Diocese for almost 500 years.On the basis of the historical and archaeological sources, it wants to fill the gaps related to the demographic data applying taphonomic methods trying to reconstruct funerary rituals and the approach to the concept of death of this human group and bioarcheological methods (macroscopic and biomolecular analyses applied on osteological human remains and sepultures soil samples) providing a biological profile of every skeleton examined, type of activity carried out and the pathologies, reconstructing a cross-section of this society, its demographic and social composition, its living conditions, the characterizing pathocenosis, the sanitation practices at the base of its system and the characteristic type of diet.The data obtained by the analysis of this cemeterial area are compared with the data related to another human sample, from Alghero Lo Quarter, another medieval site, a completely different context, in order to highlight possible similarities or differences between those two human groups, with possible reconstructive hypotheses

    Bioarchaeology: Living and death of farming society in Sardinia, Italy (AD 1300- 1700)

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    This poster highlights the preliminary analysis of the human remains from the cemeterial area along the north side of the Basilica of Saint Antioco of Bisarcio, located near the village of Ozieri (Sassari) in Sardinia (Italy). The church built in the 11th century A.D. and located on isolated vulcanic hill, has been the seat of the Catholic diocese of Bisarchium from 1065 to 1503 and it was rebuilt after a fire in 1174 A.D. Archaeological excavations (2013-2016) have produced a sample of 28 skeletons with a chronology from the 14th century to the 18th century A.D. Physical analyses of different skeletal elements (teeth and bones) have shown to be a valuable tool in tracing change or consistency in activities, lifestyle and diet during a person's life. Especially, enthesopathies (Musculoskeletal Stress Markers) and other occupational stress markers are frequently used to reconstruct past lifestyles and activity patterns of a community. Equally, the record of infections and poor oral health (ante mortem tooth loss, caries, hypoplasia examined in permanent teeth using direct vision and dental explorer) speaks about the paleodiet and health of a human sample. Two skeletons have unusual lesions that would be the results of an infection such as of TBC or Brucellosis: for aDNA extraction the bone surface was decontaminated by mechanical abrasion, followed by 20 min of UV irradiation. Bone coring was then performed in order to extract a small core of internal bone. Each core was grounded in a steel mortar with a steel pestle to obtain bone powder used then for aDNA extraction. DNA was then extracted following a phenol-chloroform procedure following a 24 hour decalcification incubation. To test the presence of M. tuberculosis DNA, the extracted DNA was PCR amplified using M. tuberculosis specific primer pair targeting to a 123-bp fragment of the repetitive element IS6110

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Inhibition of nitric oxide overproduction, directly detected in the blood by ESR spectrometry, is involved in the mechanism of action of ACTH-(1-24) in hemorrhagic shock reversal.

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    Inhibition of nitric oxide overproduction, directly detected in the blood by ESR spectrometry, is involved in the mechanism of action of ACTH-(1-24) in hemorrhagic shock reversal

    Variations on the Author

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    “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

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    We 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

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    We 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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