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51.
The authors propose a scheme of economic regionalization for Cuba, based on Soviet Marxist principles. These include the idea of objective existence of a region, independently of man's will; the need for considering future developmental prospects; energy supply; the prerequisites for integrated development of the regional economy; the presence of a regional specialization; maximum promotion of a geographical division of labor, and the factor of the country's defense capability. The resulting system of six regions in described.  相似文献   
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White and Hamilton (J World Prehist 22: 357–97, 2009) have proposed a model for the origin of the Southeast Asian Bronze Age founded on seven AMS radiocarbon determinations from the Northeast Thai site of Ban Chiang, which would date the initial Bronze Age there to about 2000 BC. Since this date is too early for the derivation of a bronze industry from the documented exchange that linked Southeast Asia with Chinese states during the 2nd millennium BC, they have identified the Seima-Turbino 3rd millennium BC forest-steppe technology of the area between the Urals and the Altai as the source of the Southeast Asian Bronze Age. We challenge this model by presenting a new chronological framework for Ban Chiang, which supports our model that the knowledge of bronze metallurgy reached Southeast Asia only in the late 2nd millennium BC, through contact with the states of the Yellow and Yangtze valleys.  相似文献   
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Journal of Archaeological Research - The Late Bronze Age (1700–900 BC) represents an extremely dynamic period for Mediterranean Europe. Here, we provide a comparative survey of the...  相似文献   
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Agricultural research in marginal dry areas can contribute to reducing poverty through the development of technological, institutional and policy options for poor farmers. Such research should address diversified opportunities and development pathways. This article analyses the diversity of livelihood strategies of rural people living in the Khanasser Valley in northwestern Syria, an area that is typical of marginal drylands. It proposes an operational classification of households based on their different livelihood strategies, applying an integrated methodology within a Sustainable Livelihoods framework. Households are classified into three clusters: agriculturists, labourers and pastoralists. The article examines the diversity of livelihoods involved, and considers where and how research should be directed to have greatest impact on poverty. Given that rural households are not homogeneous but dynamic entities, with diverse assets, capabilities and opportunities, the definition of household typologies can help to target development research. The article concludes that while agriculturists benefit most, poor labourers with enough land can also gain from pro‐poor agricultural research. The poorest households with little land, and pastoralists, benefit little or only indirectly.  相似文献   
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Although historians of the long eighteenth century have broadened our understanding of the concept of improvement beyond the agrarian reforms of a landed elite, to other social groups and geographical settings, the private ownership and access to the resources of the oceans and seas are phenomena that have until recently been largely neglected. This paper examines the concept of improvement in the maritime context by exploring a range of tensions between whaling as a form of economic private self-interest on the one hand and as a source of disinterested, virtuous knowledge about the oceans and the animal kingdom on the other hand. William Scoresby, a leading whaling captain and improver, embodied the spirit of those northern European nations which competed to improve the maritime sphere of the northern ocean by implementing different social and technical schemes of enlightenment. He went further than developing new and more efficient and profitable whaling technologies by cultivating disinterested virtue through providing privately obtained natural history specimens from the Greenland Seas for gentleman of science. This in turn gave him entry to participate in the civic circles of polite science and imperial networks of natural history. Although the ascent from industrial whaling in pursuit of profit to disinterested whaling in pursuit of science and exploration made perfect sense to Scoresby, his implicit social improvement laid him open to criticism from those who for different reasons disapproved of the marriage of industrial artisanship and polite natural history. The complexity of Scoresby's identity as an improver is revealed through Robert Jameson, the Professor of Natural History at Edinburgh University, who jealously controlled access to Scoresby's specimens, research, and publications from the Greenland Seas, while simultaneously promoting Scoresby as an intrepid, disinterested captain capable of representing the nation as an Arctic explorer. Through Jameson's Wernerian Natural History Society, they called on government to finance Arctic exploration to reach the North Pole, benefit science, and subsidise the costs through whaling. Their plans were consistent with a long tradition of commercial improvement serving state interests. The Royal Navy's response, to wrest control of Arctic exploration, was by contrast, not a rejection of improvement per se, but rather a determination to place itself at the centre of improvement, by renewing the Board of Longitude with elite, improvement-minded, gentlemen of science, while damning Scoresby with faint praise as an accomplished artisan.  相似文献   
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This paper examines the evolution of territorial imbalances in per capita income in the Central and Eastern Europe regions between 1990 and 2001. In order to overcome the limitations of conventional convergence analysis, we have combined a non-parametric approach that allows us to study the dynamics of the entire cross-section distribution, with a series of theoretical results and measures taken from the literature on personal income distribution. The results obtained show an overall reduction in regional inequality over the study period. This process has been compatible with the simultaneous presence of between-country convergence and within-country divergence. Likewise, we have observed a reduction in the development gap between the sample regions and Western Europe. In any event, the polarization of the distribution under consideration has decreased, while the registered level of intra-distribution mobility is relatively low. Furthermore, the analysis highlights the important role played in explaining the distribution dynamics by factors such as the national component, spatial location, productive structure, agglomeration economies and the percentage of gross domestic product devoted to investment.  相似文献   
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A reliable assessment of historical metallic tie-rods requires both the estimation of actual tensile load and the identification of dominant defects. Despite high defectiveness resulting from traditional metalworking techniques, so far the latter aspect has not been duly addressed in the literature. In this article, several methodologies are discussed aimed at integrating the usual inspection practice. All studies were performed on the tie-rods of Milan Cathedral. Metallurgical analyses allowed to recognize the main features of the material. Mechanical characterization in the perspective of Elasto-Plastic Fracture Mechanics (EPFM) indicated the conditions for crack propagation. Several Non-Destructive Techniques (NDTs) commonly used in Mechanical Engineering (i.e., guided waves, eddy currents, pulsed active thermography) were examined and adapted to this unconventional application. Based on the combination of all the mentioned methods, a multidisciplinary procedure was defined, which allows the evaluation of the crack significance with reference to the estimated working stress.  相似文献   
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The Port‐Vendres 4 shipwreck is evidence of coastal export trade between Hispania Citerior and Narbonne in 40/30 BC. The cargo is made up of a particular assemblage of Roman wine amphoras (Pascual 1, Dressel 1B and Lamboglia 2) destined for Gallic markets. Archaeological and archaeometric analyses conducted on a selection of the amphoras allowed the provenance of the cargo to be identified as Hispania Citerior and the central‐southern Tyrrhenian coast of Italy. Iluro and/or Baetulo are proposed as the ports of departure, enabling the reconstruction of the trade route and the historical and economic significance of this shipwreck.  相似文献   
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