The Role of Leading Firms in the Evolution of SME Clusters: Evidence from the Leather Products Cluster in Florence

Clusters that emerged in the past have changed during the latest decades, so that today the research challenge in economic geography is on their evolution over time. The aim of this paper is to update the evolutionary path of SME Italian clusters, which faced the economic crisis are undergoing a process of decline in the number of firms. Furthermore, changes in the techno-economic landscape and in the competitive environment have generated new challenges. In this context, some leading firms, able to connect local resources (and firms) to global networks, have emerged over time and today they act as a gatekeeper. The focus will be on local networks interacting with leading firms and particular attention will be devoted to the pattern of co-evolution and to the geographical dimension of this co-evolutionary process. To empirically verify if other firms in the cluster may co-evolve with the leading firm over time, a deep analysis of the Gucci network in the leather products cluster in Florence will be carried out.     

Characterisation of the pigments in a Ptolemaic Egyptian <Emphasis Type="BoldItalic">Book of the Dead</Emphasis> papyrus

A relevant subject of study in the sphere of ancient Egyptian painting technology is given by the evolution of the palette across New Kingdom, Ptolemaic and Roman periods. Functionally to secondary factors such as geographic occurrence of minerals and type of associated surface, the employment of certain painting materials provides relevant insights into particular issues such as relative dating of the object and social rank of the owner. The Book of the Dead of Amenemhet (ROM 978 × 43.1, middle Ptolemaic Period) has been analysed at the Department of Restoration and Conservation of Archivals, Graphics and Book Illumination of the Cologne Institute of Conservation Sciences (Germany). Together with visible reflectance spectroscopy, digital and optical microscopy, devices such as XRD, SEM-EDX and FT-IR have been successfully employed for the characterization of the pigments from the polychrome funerary papyrus displayed at the Royal Ontario Museum, Toronto (Canada). The present research took place within a series of investigations performed at the CICS, devoted to the interdisciplinary study of funerary Egyptian papyri dating from the early 18th Dynasty onwards.     

Ontology of the self and material culture: Arrow-making among the Awá hunter-gatherers (Brazil)

The Awá are a group of hunter-gatherers in transition to agriculture living in the Brazilian Amazon forest. After contact with mainstream society from the 1970s onwards, their culture, and especially their material culture, has undergone important transformations. Many traditional technologies and artifacts have been lost, especially those related to women. In this context, the persistence of arrow-making, although threatened by the spread of shotguns, is remarkable. During ethnoarchaeological work conducted between 2005 and 2009, we have been able to observe that the everyday making and use of arrows cannot be explained in neither functional nor symbolic terms alone. From our observations, we conclude that making and using arrows is indissolubly woven with the self of Awá men and, for that reason, we consider that only a relational-ontological approach can help us understand the deep relationship between men and arrows. Finally, we argue that the Awá case offers new possibilities to investigate technologies of the self in other non-modern societies.     

Upper Palaeolithic hunter-gatherer subsistence in Mediterranean coastal environments: an isotopic study of the diets of the earliest directly-dated humans from Sicily

The subsistence of hunter-gatherers in the Mediterranean Basin has been the object of few studies, which have not fully clarified the role of aquatic resources in their diets. Here we present the results of AMS radiocarbon dating and of isotope analyses on the earliest directly-dated human remains from Sicily, the largest island in the Mediterranean Sea. The radiocarbon determinations show that the Upper Palaeolithic (Epigravettian) humans from Grotta di San Teodoro (15 232–14 126 cal. BP) and Grotta Addaura Caprara (16 060–15 007 cal. BP) date to the Late-glacial and were possibly contemporary. The diets of these individuals were dominated by the protein of large terrestrial mammalian herbivores, such as red deer (Cervus elaphus). There is no evidence for the consumption of marine resources, which is probably the result not only of the oligotrophic nature of the Mediterranean, but also perhaps of the lack of adequate technology for exploiting intensively the resources from this sea. In spite of being contemporaneous and of the cultural and technological affinities present between the San Teodoro and Addaura humans, the carbon (δ¹³C) and nitrogen (δ¹⁵N) isotope composition of their bone collagen suggests that significant differences were present in their diets. In particular, the hunter-gatherers from Grotta di San Teodoro, in NE Sicily where coastal plains are backed by high mountain chains (Monti Nebrodi), probably had easy access to resources such as anadromous brown trout (Salmo trutta), which might not have been similarly available in the NW of the island, where reliefs are noticeably lower and watercourses fewer and farther between. This study shows that the high biodiversity of this region, which results from the complex topography of Mediterranean landscapes, was probably exploited opportunistically by Late-glacial foragers. Our data also suggest that intensification and diversification of food acquisition in Sicily did not start in the closing stages of the late Pleistocene, as in other Mediterranean regions, probably because the island had only been (re-)colonized by humans around the Last Glacial Maximum.     

Sailing virtual canoes across Oceania: revisiting island accessibility

Understanding sailing conditions is a basic requirement for understanding the two periods of settlement of the distant islands of Oceania, initially from the Bismarck Islands off New Guinea as far as Samoa and later from Samoa throughout East Polynesia. The question of a “navigational threshold” between these two worlds is the focus of this paper. A computer simulation is presented that quantifies the difficulty of sailing virtual canoes in the differing wind conditions in both areas. The model demonstrates substantial differences in ease of voyaging up to and beyond Samoa. That this measure is so markedly different between these two worlds gives support for the hypothesised pause between the discovery and settlement of islands West and East of Samoa.     

旅行的意义:大众旅游者自我发展的视角

旅游已成为个体寻求自我发展的一种手段。本文以大众旅游者个体为研究对象,探索旅游对旅游者自我发展的影响及其作用机制。研究运用扎根理论研究方法,对所搜集的资料逐级编码、概念化和范畴化,发现大众旅游者自我认知的变化具有普遍性,构建了旅游者情境自我发展过程的框架,最终得到核心范畴——旅游者自我发展。研究发现,旅游者在旅游过程中或结束后对自我的内省能够促进自我发展;影响旅游者内省行为的两条路径分别是情绪过程和意志过程;情绪过程受到旅游者对旅游情境因素的知觉和出游动机的双重影响;意志过程主要受旅游者出游动机的影响。