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91.
Marco?A.?HaanEmail author S.?Gerhard?Dijkstra Peter?T.?Dijkstra 《Journal of Cultural Economics》2005,29(1):59-78
For centuries, there have been discussions as to whether only experts can judge the quality of cultural output, or whether the taste of the public also has merit. This paper tries to answer that question empirically, using national finals of the Eurovision Song Contest. We show that experts are better judges of quality in the sense that the outcome of finals judged by experts is less sensitive to factors unrelated to quality than the outcome of finals judged by public opinion. Yet, experts are not perfect; their judgment does still depend on such factors. This is also the case in the European finals of the contest. 相似文献
92.
93.
目的观察火针治疗前后大鼠跟腱末端区细胞凋亡情况的变化,探讨火针治疗末端病的作用机理,为末端病的火针治疗提供理论依据。方法采用"电击跳跃法"建立大鼠跟腱末端病模型,施以火针治疗,采用TUNEL法检测细胞凋亡指数(AI)。结果(1)1次火针治疗后,治疗组大鼠末端区主要在跟腱、纤维软骨区、腱围这三个部位的AI比对照组有不同程度降低;(2)经4次火针治疗后,跟腱、纤维软骨区、腱骨关节面软骨、腱围的AI明显低于对照组;(3)4次火针治疗后在跟腱、纤维软骨区、腱骨关节面软骨、腱围的AI明显低于1次火针治疗组。结论(1)8周的"电击跳跃法"成功建立了大鼠跟腱末端病模型。(2)1次火针治疗可以减少末端区的细胞凋亡和修复已凋亡的细胞。(3)4次火针治疗不仅使末端区的凋亡细胞得到修复,而且加速了整个末端区组织和结构的恢复。 相似文献
94.
Web 2.0 has had an impact on library web sites making them more interactive with users, giving rise to the term Library 2.0. What is meant by Web 2.0 tools is generally understood but the degree of implementation of these tools in libraries is largely unknown. This study reports on the implementation of these tools in national libraries all over the world in order to give an objective measure of the impact of Web 2.0 on library web sites. 相似文献
95.
Bülent 《浙江大学学报(A卷英文版)》2010,11(2):106-114
In this study, an electro-mechanical valve (EMV) system for the intake valve ofa fottr stroke, single cylinder, overhead valve and spark ignition (SI) engine was designed and constructed. An engine with the EMV system and a standard engine were tested to observe the effects of the EMV on engine performance and emissions at different speeds under full load. The EMV engine showed improved engine power, engine torque and break specific fuel consumption (BSFC). A 66% decrease in CO emissions was also obtained with the EMV system, but hydrocarbons (HC) and NOx emissions increased by 12% and 13% respectively. 相似文献
96.
对云南省高校开设少数民族传统体育项目公选课的意义、可行性及实施建议进行了阐述,以期促进少数民族传统体育项目得到更好的保护和推广,同时为高校体育教学改革提供一些参考. 相似文献
97.
在介绍虚拟展示模式的基础上,以开发虚拟展馆漫游系统为例,以3DS MAX和Cult 3D为工具,讨论了开发虚拟展馆漫游系统的基本原理、步骤以及控制过程,最终在网页上建立互动产品模型。并讨论了虚拟展示技术的发展前景,认为在多媒体演示交互中具有广阔的应用前景。 相似文献
98.
Isabel Gallego-Álvarez Luis Rodríguez-Domínguez Isabel-María García-Sánchez 《Government Information Quarterly》2010
The implementation of E-government aims at simplifying and improving the transactions between public administrations and their users or customers. The objective of this study is to analyze whether the factors behind the level of development of E-government among municipalities of a specific country are common to the improvement of digital administration in the largest municipalities from 81 countries worldwide. While previous studies provide evidence that municipalities from the same country, mainly those governed by left-wing parties, focus on differentiating themselves in the content of their Web sites, our findings emphasize that internationally, in the most important municipalities worldwide, all the political parties attempt to promote the development of a dynamic and participatory E-government. 相似文献
99.
Emilia B. Halac María Reinoso Marcelo Luda Fernando Marte 《Journal of Cultural Heritage》2012,13(4):469-473
The painting Proas Iluminadas (Illuminated Bows) by Benito Quinquela Martín is studied by Raman spectroscopy in order to analyse the technique and the pigments employed by the artist: ultramarine blue, carbon black, cadmium-sulphure based compounds for the hue of yellow, orange and red; also zinc white, barium yellow, massicot yellow and viridian were observed. The importance of using different excitation laser lines in the analysis of mixtures of pigments is highlighted. The Raman mapping analysis of cross section samples shows the way the artist composed the ground layer: a lead white stratum over a calcite one. It also allows distinguishing between a mixture of components and strata superposition, both presenting the same appearance under an optical microscope. This paper provides information about the materials and techniques used in a period of Argentine art not studied before from this point of view. 相似文献
100.
María Dolores Robles-Ortega Francisco R. Feito Juan J. Jiménez Rafael J. Segura 《Journal of Cultural Heritage》2012,13(3):326-331
Nowadays, some virtual museums include 3D room scenes to show the models of its pieces, just like in real museums. Nevertheless, the generation and maintenance of this kind of scenes is generally difficult and should be done by an expert. For example, any change such as including a new piece or modifying the position of an existing fragment usually requires a different design and the creation of a new scene. In this paper we present a case study on the development of a web-based application to automatize this process. To this end, a database to store both graphic and non-graphic information about the pieces, and some 3D rooms to show them has been created. The designed scenes only contain some pieces of furniture to exhibit the fragments, which will be subsequently included. Thus, when a room is loaded in the web page, its associated pieces are obtained through a query in the database and its models are dynamically included in the original scene. Therefore, the position changes or the inclusion of new pieces are not performed in the 3D model, but in the database. Our application makes the transmission of the knowledge to the general public easier because any new discovered piece can be included in a existing museum effortlessly. 相似文献