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Determining hand laterality during human evolution is important in order to identify brain hemispheric lateralization for motor tasks and, indirectly, to gain information on the complex cognitive functions of the human brain. In this paper, we present a new method for inferring handedness from lithic evidence. The study is based on an analysis of the scatter patterns of lithic remains from stone-knapping episodes. An experimental programme was carried out by 14 knappers (eight right-handed and six left-handed), ranging from individuals that had never even struck two pebbles together to individuals who were quite familiar with prehistoric tools and had some degree of practice. The results of the experiment show that the material scatter patterns of right- and left-handed knappers at group level are different, but they do overlap at certain intervals. At the individual level, the probability of falsely ascribing left- and right-handedness has also been estimated. In addition, we have adapted this method to be applied to the archaeological record. In this case, only well-preserved knapping events with no post-depositional alterations can be used to assign left- or right-handed knappers, with the former being more reliably detected than the latter.  相似文献   
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The Renaissance saw the first systematic anatomical and physiological studies of the brain and human body because scientists, for the first time in centuries, were allowed to dissect human bodies for study. Renaissance artists were frequently found at dissections and their attention to detail can be observed in their products. Scientists themselves were increasingly artistic, and they created astonishing anatomical models and illustrations that can still be studied. The cross-fertilization of art and science in the Renaissance resulted in more scientific analyses of neuroanatomy as well as more creative ways in which such analyses could be depicted. Both art and science benefited from the reciprocal ways in which the two influenced each other even as they provided new ways of explaining the mysteries of the human body and mind.  相似文献   
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This contribution looks at land property relations in a peasant community in the central highlands of Peru. Rather than using a rights‐based approach, the authors propose a ‘practice force field approach’ for their analysis of property relations under communal land tenure regimes. Their study combines qualitative ethnographic case studies with quantitative analysis of data on land distribution. In contrast to rights‐based approaches, this perspective understands the legal discourses that people draw upon to explain property relations as ‘justifying rule talk’ rather than the reflection of a system of property rights. It is shown how property relations are shaped in mediated interactive processes, where official rules, moral principles, shared histories and strategic games come together. The authors use this practice force field approach to study Usibamba, an Andean community that has developed a true disciplinary regime of communal governance based on control over land. The role of ‘rule talk’ and the function of elaborate local systems of land registration are examined in the context of the annual reallocation of communal land. Particular attention is paid to the performance of the president of the comunidad during this delicate process and his reflections on the course of events.  相似文献   
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This paper explores the industrial affiliation and linkages of research and technology organizations (RTOs) in nine North Italian regions highly specialized in advanced manufacturing and introduces a methodology to assess the potential for a cross-regional technology platform. RTOs are supposed to operate in the development and application phases of innovation and are expected to provide access to key enabling technologies and R&D infrastructures. An original survey panel of 55 Italian RTOs is used and Social network analysis is introduced to assess the potential of RTOs to operate as a single cross-regional platform across key industrial and technology domains. Centrality measures are used to build an empirical model on the factors that drive the higher centrality of RTOs. Centrality is increased by convergence on few key technology priorities and is positively correlated with collaborative ventures, the number of contracts with firms and the presence of distinctive R&D infrastructures. Such a platform rests on specialized regional hubs, it operates with no gatekeepers and it only partially exploits geographical and technological proximity within the network. Future research avenues are discussed to improve the function of technology diffusion of RTOs in a cross-regional perspective.  相似文献   
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Gortyn was an important Cretan town from the late Archaic to the Hellenistic period and then became one of the provincial capitals of the Roman Empire. It controlled the whole of Crete and Cyrenaica and was a flourishing centre of trade and agricultural products in the first centuries of our era. In more than 100 years, many portions of the Greek and Roman town were unearthed under the supervision of the Italian Archaeological School of Athens and a considerable number of stone artefacts found, many of them made of imported marble since the local variety was grey and of poor quality. Statuary and other prestigious marble sculpted artefacts found in Gortyn were sampled and subjected to archaeometric examination (by way of optical microscopy in thin section, powder X-Ray diffraction and mass spectometry for the determination of the C and O isotopic ratio) in order to identify the quarries they came from. The results obtained from the analysis of several dozen white marble objects have indicated the use of a quite wide variety of species including Parian (from Lakkoi), Pentelic, Thasian (dolomitic and calcitic) and (occasionally) Proconnesian marbles. The first three, especially Pentelic, were used for most of the statuary.  相似文献   
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ABSTRACT

This paper investigates the positioning of actors characterized by different natures in a regional innovation network and explores how these actors improve their innovation capabilities by assuming prominence or brokering positions. Innovation capability is widely seen to be the driving force in building regional competitive advantage, therefore investigating how the positioning of actors improves their innovation-related activities is relevant in terms of regional competitiveness. This paper builds on a survey conducted on the Sicilian regional area in Italy. A questionnaire was used to collect data concerning the relationships established between actors and the extent to which these relationships impact actors’ innovation capability. Results suggest that regional actors cannot be considered as a homogeneous group regarding their positioning in a regional network and that the innovation benefits of assuming different network positions depend on their nature. This paper offers some theoretical implications to the literature on regional innovation network and practical suggestions to organizations and regional policy makers.  相似文献   
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The microbiologist Jean Comandon is famous for his studies on the movement of the syphilis bacteria as differentiated in various forms by ultramicroscope. He was also a pioneer on the technical application of the microcinematography in laboratory research. His collaboration with clinicians and surgeons in the study of various pathological disorders is little known. From 1918 to the 1920s, he collaborated with such neurologists as André Thomas, Jean Athanase Sicard, and others in the study of various neurological disorders by using cinematography as a scientific tool for understanding the clinical and pathological mechanisms of diseases. These collaborations allowed him to be involved in the beginnings of the French cinematography industry, especially with Charles Pathé who established a small film studio laboratory in Vincennes where a multidisciplinary group improved the application of cinematography in clinical medical practice.  相似文献   
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