共查询到7条相似文献,搜索用时 15 毫秒
1.
Andrea Bonaccorsi 《Minerva》2008,46(3):285-315
The article addresses the issue of dynamics of science, in particular of new sciences born in twentieth century and developed
after the Second World War (information science, materials science, life science). The article develops the notion of search
regime as an abstract characterization of dynamic patterns, based on three dimensions: the rate of growth, the degree of internal
diversity of science and the associated dynamics (convergent vs. proliferating), and the nature of complementarity. The article
offers a conceptual discussion for the argument that new sciences follow a different pattern than established sciences and
presents preliminary evidence drawn from original data in particle physics, computer science and nanoscience.
相似文献
Andrea BonaccorsiEmail: |
2.
Matthew Stanley 《Minerva》2008,46(2):181-194
This paper argues that that political context of British science popularization in the inter-war period was intimately tied
to contemporary debates about religion and science. A leading science popularizer, the Quaker astronomer A.S. Eddington, and
one of his opponents, the materialist Chapman Cohen, are examined in detail to show the intertwined nature of science, philosophy,
religion, and politics.
Matthew Stanley is associate professor in the Gallatin School at New York University. He conducts research on the history of the physical sciences as well as the history of science and religion. 相似文献
Matthew StanleyEmail: |
Matthew Stanley is associate professor in the Gallatin School at New York University. He conducts research on the history of the physical sciences as well as the history of science and religion. 相似文献
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Trade in information goods is particularly sensitive to the strength of intellectual property rights (IPR) and encounters
an apparently different pattern of imitation threat compared with manufacturing trade, but the information goods trade–IPR
nexus is less systematically investigated. This article analyzes whether and how U.S. information goods exports are sensitive
to national differences in IPR protection and the degree of threat-of-imitation from the dynamic perspective. Employing the
technique of instrumental variables for a dynamic panel model to consider the hysteretic effect and controlling the endogeneity
problem, the empirical results show that the strength of the importing country’s IPR protection overall exhibits a trade-enhancing
effect, supporting the standpoint that stronger IPR protection will induce more trade. Moreover, we adopt the piracy rate
as a proxy for threat-of-imitation to examine its role on the information goods trade–IPR nexus. Empirical findings validate
the prevalence of the market expansion effect wherever the degree of imitation threat of importing countries is high or low,
because the technology level and production cost of reproduction are very low. It implies that the existing theory on threat-of-imitation
may not apply to the information goods trade.
相似文献
Yi-Ju HuangEmail: |
6.
Gillian Doyle 《Journal of Cultural Economics》2000,24(1):1-26
Since the early 1990s, regulators across the globehave faced increasing pressure from media firms toliberalise domestic media and cross-media ownershiprestrictions. Based on empirical research carried outin the U.K., this paper examines the ``economic' case putforward in favour of deregulation. Findings suggestthat, although factors other than size will affectperformance, there is generally a strong and positivecorrelation between the market share and the operatingprofitability of firms involved in either televisionor radio broadcasting or newspaperpublishing. But, with regard to cross-media ownershipof television and newspapers, there is nocompelling evidence that diagonal integration bringsabout inherent synergies, economies of scope or othereconomic benefits. Thus, whereas a variety ofeconomic efficiency gains may be available to justifya relaxation of restrictions over monomedia expansion,few such benefits can be found in support ofderegulating cross-ownership of television andnewspapers. 相似文献
7.
Sara Bianchin Monica Favaro Pietro Alessandro Vigato Guido Botticelli Gioia Germani Silvia Botticelli 《Journal of Cultural Heritage》2009,10(3):379-387
The scientific approach to the restoration and monitoring of mural paintings, at S. Girolamo Chapel – SS. Annunziata Church in Florence, is reported as a fruitful example of the synergic collaboration between restorers and scientists in the planning and development of conservative interventions. Before restoration, the painting technique and the state of preservation of the pictorial cycle have been investigated firstly by close examination of the painted surfaces and then by optical and/or SEM-EDS microscopy and μFT-IR spectroscopy on appropriately selected samples. In particular, the original constituent materials and those belonging to subsequent restorations were characterized together with those originating from decay processes. In this mural painting cycle, a peculiar “fresco” technique has been used although an auxiliary binder for pigment distemper has been also employed. The use of this technique, sometimes in an improper way together with uncorrected restoration interventions, are the main responsible of the unsatisfactory state of conservation of many painted areas. Preliminary conservation trials and scientific studies were carried out to design the most convenient restoration intervention and to verify the correctness and non-invasive of the necessary operations. Special attention was devoted to cleaning procedures, continuously monitored by a physico-chemical methodology, mainly based on microinvasive, microscopic and spectroscopic investigations, to evaluate the efficiency, advantages and drawbacks of the proposed cleaning procedures and define the most appropriate ones. Finally, specific decay markers have been recognized, by a comparison of the results obtained from the detached samples with those deriving from artificially aged models, to be used for a correct future monitoring and maintenance of the wall paintings. 相似文献