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71.
72.
A simple mathematical expression is proposed to estimate spectra reduction damping factors for seismic design of systems with viscous dampers. The expression is obtained from the ratios between ordinates of uniform hazard spectra associated with two different return intervals (50 and 125 years), corresponding to sites with different types of soil within the Valley of Mexico. The expression proposed depends on the dominant period of the soil, and on both the vibration period and damping ratio of the structural system. Values of the damping factors proposed here are comparable to those recommended by different authors and seismic design building codes.  相似文献   
73.
This paper continues the characterization of the lead isotopic fingerprint of ancient copper mines in the north‐west of Spain. In this work, the lead isotopic compositions found in copper ores from the La Profunda mine are presented. Azurites and malachites sampled from this deposit were subjected to lead isotope analysis by multicollector ICP–MS. The results showed a clear radiogenic lead signature compatible with the presence of uranium‐rich minerals (such as zeunerite) in the same mining complex. Moreover, a rare copper artefact, found in the galleries of the mine during its modern exploitation, was also analysed and showed that local mineral was used for its manufacturing.  相似文献   
74.
This article analyses how neoliberal restructuring encouraged the use of participatory methods in agricultural research in Bolivia and how, at a later stage, participatory development initiatives had to be adapted to prevent conflicts with the post‐neoliberal views of farmer organizations. The article contributes to the debate on the normalization of participatory methods in agrarian development. Engaging with Foucault's work on governmentality and neoliberalism, our analysis goes beyond interpretations of participation which conceptualize it exclusively as a technology of power to discipline subjects. Drawing on a distinction between a liberal and a neoliberal moment in the restructuring of agricultural research, we study the case of PROINPA (Foundation for the Promotion and Research of Andean Products), a national NGO that was once part of the state system for agricultural research but was then privatized. Although PROINPA employed participation mainly to enhance managerial effectiveness, it also facilitated moments of participation from below. We argue that participation designed by this type of NGO is not just ‘technical’ as PROINPA professionals would like to perceive it, nor is it simply ‘political’ as critical views on participation hold. Instead it is malleable in the sense that each actor is involved in finding a new balance between technical, economic and political considerations.  相似文献   
75.
Over the last decade, the global value chain (GVC) approach, with its associated notions of chain governance and firm upgrading, has proliferated as a mode of analysis and of intervention amongst development institutions. This article examines the adoption and adaptation of GVCs at four multilateral agencies in order to understand the purchase of value chain approaches within the development field. Mixing GVC perspectives with other theoretical influences and applied practices, these institutions deploy value chain frameworks to signal a new generation of policies that promise both to consolidate, and to advance beyond, the market fundamentalism of the Washington Consensus. To achieve this, value chain development frameworks craft interventions directed toward various constellations of firm and non‐firm actors as a ‘third way’ between state‐minimalist and state‐coordinated approaches. The authors identify key adaptations of the GVC framework including an emphasis on value chain governance as an instrument to correct market failure in partnership with state and development agencies, and upgrading as a de facto tool for poverty reduction. They find that efforts are ongoing to construct a ‘post’ to the Washington Consensus and that the global value chain is enabling this process by providing a new language and new object of development intervention: ‘the chain’ and the local–global linkages that comprise it.  相似文献   
76.
In the multidisciplinary project presented here, 12 known monastic grounds in Iceland were surveyed by a group of medievalists from different fields in the summers of 2009, 2010 and 2011. The aim of the survey was to increase knowledge of the Icelandic monastic garden and of the plants that were known and used there; to look for possible medieval cultural relict plants; to observe continental influence on the island; and to vitalize discussion and research. Landscape and plants were surveyed at the 12 monastic sites, and full botanical investigations made. Many of the plants found have a medieval past as medicinal and utility plants, and some of their properties may have been common knowledge to medieval Icelanders. An investigation of written sources and archaeological and archaeobotanical findings from excavated sites added to the investigators’ knowledge. So were there monastic gardens in Iceland in the Middle Ages? The answer is a rather confident yes. With all the evidence combined, the investigators were able to trace the deliberate use of medicinal, food and utility plants in the monastic contexts. Whether they were cultivated, tended in situ, gathered growing wild or imported is another matter. Continental influence was more evident than has previously been observed.  相似文献   
77.
Jacobean devotion and national awareness are closely related in the Poema de Fernán González (PFG). The great advance of the Reconquest in the thirteenth century and the reevaluation of the past that it caused enabled the broad Hispanic perspective of the PFG. Spain is not only a distant and longed-for reality (“regnum Gothorum”) but a current political concept. This is the frame of the PFG's intense Castilian sentiment. Castile is the bastion of the Visigothic monarchy, which did not yield to the Muslims and was the foundation for the recovery of Spain. The territorial diversity becomes the outstanding feature of this country, in which the “Montaña” takes an important role. Confronting the proposal of the cult of Saint Millán by the Monastery of San Millán de la Cogolla, the author of the PFG, aware of the damages that such a cult was causing to his monastery, clings to the Jacobean devotion that achieved a broad Hispanic scope.  相似文献   
78.
Ji?í (George) Procháska (1749–1820), a Czech anatomist, physiologist, and neuroscientist of the eighteenth century, ranks among the major figures of Czech and European cultural history. The works of Ji?í Procháska, due to historical circumstances, were published mostly in Latin and only some in German. However, given that only one treatise was partially translated into English, the results of his extensive research activities are currently unavailable to the international scientific community. The achievements of Ji?í Procháska undoubtedly belong to the major intellectual heritage of European science and certainly deserve attention as such, although his research reflected the time in which he lived and therefore has been reevaluated by later researchers. Undoubtedly, it is our duty not only to remember the work and legacy of Ji?í Procháska, which significantly influenced the development of our knowledge, but also to try to critically assess his contribution in terms of today. This article surveys the important biographical events of Ji?í Procháska’s life, taking into account the significance of his research.  相似文献   
79.
The shift from the linear to the innovation system-based approach has resulted in the emergence of differentiated regional innovation policy. However, certain common presumptions bind these location-specific policies together. The set of information that is used to design these policies and the set of information excluded are fairly similar. The theoretical sections of this paper provide a critical review on the informational basis of regional innovation policy by contrasting the interpretations of the welfare effects of technological change in the utilitarian tradition and in Sen's capability approach. The empirical sections analyse the correspondence of the innovation capacity and welfare (well-being) situation in a Hungarian micro-regional data set. We conclude that the conventional informational basis of innovation policy is too narrow from a welfare perspective. Not only should the differences in the innovation systems, but also the peculiarities of the region's welfare situation be considered during the design of innovation policy.  相似文献   
80.
Classification of artifacts has long marked a significant edge between theory and practice in archaeology. While considering classification to be a necessary methodological device, most practitioners also recognize that it carries with it built-in assumptions. This essay approaches the issue by way of a specific stone tool type from Old World sites: the burin. By asking “what is a burin?” the study shows the need to reconsider typologies to reflect changes in research questions and progress in dating methods, especially when working with museum collections and secondary data between regions and across national traditions, and the need to study whole collections from the perspective of technological choices.  相似文献   
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