1,721,129 research outputs found
Provenience, technology, morphology and the use of proto-solutrean and solutrean points from Vale Boi (Algarve, southern portugal) : preliminary results / Provenance, technologie, morphologie et utilisation des pointes du proto-solutréen et du solutréen du site de Vale Boi (Algarve, Portugal méridional) : résultats préliminaires
No full textProvenance, technologie, morphologie et utilisation des pointes du proto-solutréen et du solutréen du site de Vale Boi (Algarve, Portugal méridional) : résultats préliminaires. The long Upper Paleolithic sequence (from Gravettian to Magdalenian) present at the site of Vale
Boi, makes this site a reference for this Paleolithic human occupations in the south of the Iberian peninsula. This paper presents preliminary data on Proto-Solutrean and Solutrean points from different perspectives : raw material diversity and possible provenience, technology, morphological variability, and function.La longue séquence du Paléolithique supérieur (depuis le Gravettien jusqu’au Magdalénien)
du gisement de Vale Boi, en fait une référence pour la connaissance de l’occupation humaine paléolithique du Sud de la Péninsule Ibérique. Ce travail présente les résultats préliminaires concernant les pointes solutréennes sous différentes perspectives : la diversité de matières premières et son origine probable, la technologie, la variabilité morphologique et la fonctionnalité.Gibaja Bao Juan F., Ferreira Bicho Nuno. Provenience, technology, morphology and the use of proto-solutrean and solutrean points from Vale Boi (Algarve, southern portugal) : preliminary results / Provenance, technologie, morphologie et utilisation des pointes du proto-solutréen et du solutréen du site de Vale Boi (Algarve, Portugal méridional) : résultats préliminaires. In: Le Solutréen 40 ans après Smith’66. Tours : Fédération pour l'édition de la Revue archéologique du Centre de la France, 2013. pp. 185-196. (Supplément à la Revue archéologique du centre de la France, 47
Análisis antracológico del sitio Cabeço da Amoreira (Muge, Portugal) nuevos datos del Corte Oeste 2 del Área Jean Roche
No full textCabeço da Amoreira (8100 y 7500 cal BP) es uno de los concheros que integran el complejo de Muge —Portugal—. Dadas sus dimensiones y la cantidad de artefactos recuperados, Cabeço Amoreira es considerado uno de los tres sitios principales de este complejo Mesolítico. El objetivo de este trabajo es dar a conocer los primeros resultados obtenidos a partir del estudio antracológico de la muestras de madera carbonizada recuperadas en el Área de excavación de Jean Roche «corte oeste 2» del sitio Cabeço da Amoreira (Santarém, Portugal). Los resultados alcanzados evidencian un uso heterogéneo y local de las especies leñosas utilizadas como combustible por parte de los ocupantes de Cabeço Amoreira: Pinus pinaster, Pinus pinea/pinaster, Pinus tp. sylvestris, Pinus sp., Quercus subg. Quercus, Quercus ilex/Q. coccifera, Quercus sp., cf. Salix, Arbutus unedo, Monocotilodóneas.Cabeço da Amoreira (8100 to 7500 cal BP) is a shellmidden integrates the Muge shellmidden Mesolithic complex. Due to the size of the settlement and its archaeological assemblage, Cabeço da Amoreira can be considered one of the main sites of the Mesolithic complex. The goal of this work is to present the first results of the charcoal analyses carried out on samples recovered in 2010, from excavation area named Jean Roche, more specifically, in the West Profile 2, of Cabeço da Amoreira (Santarém, Portugal). The results show a local and heterogeneous use of woodland species for fuel by the Cabeço da Amoreira populations: Pinus pinaster, Pinus pinea/pinaster, Pinus tp. sylvestris, Pinus sp., Quercus subg. Quercus, Quercus ilex/Q. coccifera, Quercus sp., cf. Salix, Arbutus unedo and Monocotyledons.Fil: Monteiro, Patricia Diogo. Universidad de Algarve; PortugalFil: Caruso, Laura Lihue. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Bicho, Nuno. Universidad de Algarve; Portuga
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
New experiments and a model-driven approach for interpreting Middle Stone Age Lithic Point Function using the Edge Damage Distribution Method
No full textThe Middle Stone Age (MSA) is associated with early evidence for symbolic material culture and complex technological innovations. However, one of the most visible aspects of MSA technologies are unretouched triangular stone points that appear in the archaeological record as early as 500,000 years ago in Africa and persist throughout the MSA. How these tools were being used and discarded across a changing Pleistocene landscape can provide insight into how MSA populations prioritized technological and foraging decisions. Creating inferential links between experimental and archaeological tool use helps to establish prehistoric tool function, but is complicated by the overlaying of post-depositional damage onto behaviorally worn tools. Taphonomic damage patterning can provide insight into site formation history, but may preclude behavioral interpretations of tool function. Here, multiple experimental processes that form edge damage on unretouched lithic points from taphonomic and behavioral processes are presented. These provide experimental distributions of wear on tool edges from known processes that are then quantitatively compared to the archaeological patterning of stone point edge damage from three MSA lithic assemblages--Kathu Pan 1, Pinnacle Point Cave 13B, and Die Kelders Cave 1. By using a model-fitting approach, the results presented here provide evidence for variable MSA behavioral strategies of stone point utilization on the landscape consistent with armature tips at KP1, and cutting tools at PP13B and DK1, as well as damage contributions from post-depositional sources across assemblages. This study provides a method with which landscape-scale questions of early modern human tool-use and site-use can be addressed
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
Holocene demographic changes and the emergence of complex societies in prehistoric Australia
Get PDFA continental-scale model of Holocene Australian hunter-gatherer demography and mobility is generated using radiocarbon data and geospatial techniques. Results show a delayed expansion and settlement of much of Australia following the termination of the late Pleistocene until after 9,000 years ago (or 9ka). The onset of the Holocene climatic optimum (9-6ka) coincides with rapid expansion, growth and establishment of regional populations across ~75% of Australia, including much of the arid zone. This diffusion from isolated Pleistocene refugia provides a mechanism for the synchronous spread of pan-continental archaeological and linguistic attributes at this time (e.g. Pama-Nyungan language, Panaramitee art style, backed artefacts). We argue longer patch residence times were possible at the end of the optimum, resulting in a shift to more sedentary lifestyles and establishment of low-level food production in some parts of the continent. The onset of El Niño - Southern Oscillation (ENSO; 4.5-2ka) restricted low-level food production, and resulted in population fragmentation, abandonment of marginal areas, and reduction in ranging territory of ~26%. Importantly, climate amelioration brought about by more pervasive La Niña conditions (post-2ka), resulted in an intensification of the mobility strategies and technological innovations that were developed in the early- to mid-Holocene. These changes resulted in population expansion and utilization of the entire continent. We propose that it was under these demographically packed conditions that the complex social and religious societies observed at colonial contact were formed
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
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