1,720,956 research outputs found
Bone remodeling following a lower leg fracture in the 11.000-year-old hunter-gatherer Vado all'Arancio 1 (Italy)
Going Beyond Counting First Authors in Author Co-citation Analysis
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
Variations on the Author
“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
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
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
A biomechanical approach to the reconstruction of activity patterns in Neolithic Western Liguria (Italy)
This paper investigates the changes in
upper and lower limb robusticity and activity patterns
that accompanied the transition to a Neolithic subsistence
in western Liguria (Italy). Diaphyseal robusticity measures
were obtained from cross-sectional geometric properties
of the humerus and femur in a sample of 16 individuals
(eight males and eight females) dated to about 6,000–
5,500 BP. Comparisons with European Late Upper Paleolithics
(LUP) indicate increased humeral robusticity in
Neolithic Ligurian (NEOL) males, but not in females, with
a significant reduction in right-left differences in both
sexes. Sexual dimorphism in robusticity increases in
upper and lower limb bones. Regarding the femur, while
all female indicators of bending strength decrease steadily
through time, values for NEOL males approach those of
LUP. This suggests high, and unexpected, levels of mechanical
stress for NEOL males, probably reflecting the
effects of the mountainous terrain on lower limb remodeling.
Comparisons between NEOL males and a small sample
of LUP hunter-gatherers from the same area support
this interpretation. In conclusion, cross-sectional geometry
data indicate that the transition to Neolithic economies
in western Liguria did not reduce functional requirements
in males, and suggest a marked sexual division of
labor involving a more symmetrical use of the upper limb,
and different male-female levels of locomotory stress.
When articulated with archaeological, faunal, paleopathological,
and ethnographic evidence, these results support
the hypothesis of repetitive, bimanual use of axes tied to
pastoral activities in males, and of more sedentary tasks
linked to agriculture in females
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