1,720,955 research outputs found
Explotación de recursos en época medieval – análisis del contenido del cálculo dental de la necrópolis de Cal Guardià (VII-IX cal AD; Argentona, Barcelona)
Get PDFMicroscopic analysis of dental calculus’ content from archaeological contexts provides direct information about food consumption, environment and lifestyle of past societies. In the present study we analyse the dental calculus of eight individuals belonging to the early medieval (7th-9th c. AD) necropolis of Cal Guardià (Argentona, Barcelona).
The methodology employed consisted in sampling the dental tartar, disaggregating it with acid and observing, through optical microscopy the microremains preserved. The findings were describedand compared through modern reference collections and atlas.
Several categories of microdebris, such as starch grains, phytoliths and pollen were found.
Taxonomic identification of starch granules and phytoliths points out the consumption of crops, while pollen provides information about the palaeoenvironment.
This is the first time that dental calculus analysis was performed in this region targeting a medieval osteological collection. The results are consistent with previous archaeological and archaeobotanical studies. These finds shed new light on the habits and diet of the Catalan medieval communities.El an lisis microsc pico del contenido de dep sitos de c lculo dental en contextos arqueol gicos
es una metodolog a que puede aportar informaci n directa de la paleodieta, paleoambiente y estilos
de vida antiguos. En el presente estudio se analiza el c lculo dental de ocho individuos de la
necr polis altomedieval (VII-IX cal AD) de Cal Guardi (Argentona, Barcelona).
La metodolog a aplicada consisti en remover los dep sitos de t rtaro de los dientes,
disgregarlos, observarlos mediante microscop a ptica y describir los microrestos hallados para su
posterior comparaci n e identificaci n mediante colecciones de referencia actuales y atlas.
Se encontraron varias categor as de microelementos como gr nulos de almid n, fitolitos y polen,
entre otros. La identificaci n taxon mica de los primeros evidencia el consumo de cereales, mientras
que el polen se relaciona m s al paleoambiente.
Es la primera vez que se analiza el c lculo dental en esta regi n y en una colecci n osteol gica
medieval. Los resultados encajan con estudios arqueol gicos y arqueobot nicos previos. Estos
hallazgos apuntan nuevas informaciones sobre los h bitos y dieta de las comunidades medievales
catalanas
Cremation practices coexisting at the S'Illot des Porros Necropolis during the Second Iron Age in the Balearic Islands (Spain)
No full textThe necropolis of S'Illot des Porros, one of the most important prehistoric funerary sites of the Balearic Islands (Spain), was in use from the VIth and Vth century BCE until the 1st century CE. Located in a funerary area which contains two cementeries and one sanctuary, this site is constituted by three funerary chambers named A, B and C, respectively. Investigations on all the human burnt bone remains of the chambers, carried out mainly by the X-ray diffraction and supplemented in some cases by Fourier Transform Infrared spectroscopy pointed to the simultaneous use of inhumation and cremation funerary rites, probably due to existing social differences. In particular, it was argued that the chambers were differentiated, i.e., B was dedicated to inhumations and A to cremations, the cremations found in chamber B very likely being a result of a cleaning-purification of the burial area. Moreover, chamber C, which is the most ancient (IVth century BCE) and with the largest number of inhumed remains, contains the smallest number of remains that were exposed to fire and just in one case it seems possible to attribute a genuine high-temperature cremation. (C) 2010 Elsevier GmbH. All rights reserved
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
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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