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  总被引:1,自引:0,他引:1  
From the normative perspective of EU regional policy, polycentric spatial development has been seen as an effective tool to overcome regional disparities since the adoption of the European Spatial Development Perspective. However, the impact of a polycentric spatial structure on equal spatial development is ambiguous and still waits for its clarification. This paper examines the relationship by focusing on the local scale, where medium-sized towns play a crucial role as local centres in everyday human lives. Using functional regions of the Czech Republic, this paper defines polycentric urban systems at the micro-regional scale. Subsequently, the level of mono/polycentricity is compared with intra-regional disparities. Based on the results of the analysis, it can be argued that the connection of polycentricity with balanced spatial development is strongly determined by selected indicators. However, the findings do not provide evidence about the strictly positive impact of polycentricity on intra-regional disparities. In a light of these results, the conclusion is rather sceptical about the unique role of polycentricity in spatial development and due to the lack of similar studies, further research is recommended.  相似文献   
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ABSTRACT

Medieval women's involvement with artworks and building campaigns can sometimes be hidden, particularly when, as with architectural patronage, that involvement is familial and multi-generational; it is also likely to be routinely underestimated by scholars in the absence of the artworks themselves. This paper discusses various interactions between royal women, art and architecture from the turn of the tenth century to the arrival of the Normans in England and the Anglo-Normans in Ireland. Moving to portable objects, the analysis of two lost artworks – Edith of Wilton's alb, described by Goscelin, and Derbforgaill of Mide's chalice given to Mellifont – suggests that historical sources can be more revealing of iconography and meaning than is often assumed. Finally, a brief examination of the Ælfflæd/Frithestan/Cuthbert embroideries shows that these fit the same paradigms as the lost works, and that they may offer some further insight into Ælfflæd's status and fate.  相似文献   
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This paper aims at the comprehension of feasible development trajectories conceptualized within the new path-development model in the case of two less developed regions in Central Europe (CE). The main new element of this paper comprises the examination of the perception of key barriers and mechanisms hindering particular evolutionary trajectories by regional stakeholders and their comparison with those conceptualized in the literature. Although conceptual characteristics of prevailing path types in different regional innovation systems do exist, empirical verification from less developed regions such as those in CE is insufficient. On the basis of interviews with regional stakeholders, a typology of barriers for pathways conceptualized to date was elaborated from a CE perspective. Our study showed that the feasibility of a more radical path is hindered by a wide range of barriers operating at different levels. The elaborated typology of barriers for various path-development trajectories outlined the main hindrances constraining key regional actors, linkages and institutions. Given the general weakness of the overall RIS, path-extension and path-modernization trajectories are bound to be the most realistic options for this type of less developed regions. Our study revealed existing regional dynamics as built predominately upon incremental changes within rooted but prospective industrial branches.  相似文献   
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Southeastern Central Europe is quite rich in finds of progressive Neandertals from Middle Paleolithic contexts and early modern humans associated with evolved Upper Paleolithic (Aurignacian and Pavlovian). There are no human fossils that can be related to the transitional Middle-Upper Paleolithic units (the Bohunician and the Szeletian); thus, from anthropology we know only that the transitional period began with Neandertals and ended with modern humans. The archaeological record is more complex. The Jankovichian industries of Hungary differ from the mostly non-Levallois Middle Paleolithic of Central Europe in the presence of some Levallois; they seem to be technologically related to the Levallois-Leptolithic Bohunician industries of Moravia, dated to 43,000–38,000 B.P., which are the first transitional Upper Paleolithic unit. The appearance of the Szeletian before 42,000 B.P. in Hungary and at about 39,000 in Moravia represents a technological variation of the transition, although retaining marked local Middle Paleolithic elements. The date of the appearance of the typical Aurignacian, the first culture clearly related to modern humans, is unclear, but it certainly developed after 36,000 B.P. and has several dates between 35,000 and 30,000 B.P.  相似文献   
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Scholars generally dismiss the ideas of the eighteenth-century founder of the Royal Irish Academy, Charles Vallancey, who argued for links between ancient Irish, Phoenician, and Scythian languages and cultures. Vallancey's antiquarian writings were widely known at the time and impacted upon thinkers such as William Jones, who first correctly articulated the links between Indo-European languages. Earlier, Vallancey had hypothesized similar links and a “common source” of world languages, relying on Irish origin legends and supposed similarities between Ireland and the “Orient.” Though inaccurate, his ideas spurred fuller investigations, prompting philologers in new directions. The father of semiotics, Charles Sanders Peirce, argued for the value of speculative reasoning, outlining the logic of discovery. For Peirce “abduction” is the beginning of the scientific method, the formation of a hypothesis. Reading Vallancey's speculations as abductive suggestions accounts for his prominence at the time and asserts his influence in the history of philology and linguistics.  相似文献   
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Charles Bridge in Prague, founded in 1357, is one of the most prominent historical structures in Europe. It interconnects two Prague districts, the Lesser Town and the Old Town districts, separated by the Vltava River. In the past, the bridge underwent a variety of repairs and retrofits. Within the framework of the moderate repair carried into effect in 2007 to 2010, a measuring system was installed in the bridge, and the temperature and moisture content at selected gauge points have been continuously monitored for a period of 2 years. This article presents non-linear, fully coupled modeling of both fields utilizing a parallel version of the simple finite elements (SIFEL) computer code. Its cogency is validated against experimentally obtained data that serve as inputs for the second stage of a thermo-mechanical analysis—the detailed and mechanics-oriented simulations of the bridge as a whole.  相似文献   
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