首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   84篇
  免费   3篇
  2019年   1篇
  2018年   6篇
  2017年   1篇
  2016年   10篇
  2015年   5篇
  2014年   8篇
  2013年   25篇
  2012年   4篇
  2011年   5篇
  2010年   2篇
  2008年   2篇
  2007年   1篇
  2005年   3篇
  2004年   1篇
  2003年   1篇
  2002年   3篇
  2001年   2篇
  2000年   2篇
  1999年   1篇
  1997年   1篇
  1994年   1篇
  1989年   1篇
  1959年   1篇
排序方式: 共有87条查询结果,搜索用时 0 毫秒
1.
2.
This paper describes new rock art sites in the region east of Idfu, where at least 50 sites with several thousands of petroglyphs offer huge potential for future research. Site ET-A/WB 4 provides the largest representation of a boat yet discovered in the Eastern Desert; it is part of a scene extending over about 10 m of rock with boats, animals and human figures in procession. This scene and another one from site ET-A/WB 5 can be dated to the transition from the prehistoric to the dynastic periods. All sites in the Wadi el-Barramiya are endangered due to their location near a main road used by construction works and visitors.
Résumé Dans cet article quelques sites à gravures rupestres récemment découverts dans la région à l'est d'Idfu sont décrits. Une cinquantaine de ces sites avec des milliers de pétroglyphes présentent un potentiel énorme pour les recherches futures. Le site ET-A/WB 4 nous donne la représentation d'un bâteau la plus grande connue jusqu' à présent dans le désert oriental d'Egypte. Cette représentation cependant ne constitue qu'un morceau d'un tableau qui se prolonge sur environ 10 m de la surface rocheuse avec des bâteaux, des animaux et des formes humaines en cortège. Ce tableau ainsi qu'un autre du site ET-A/WB 5 peut être situé chronologiquement à la transition de l'époque préhistorique et l'époque dynastique. Tous les sites du Wadi el-Barramiya sont menacés en raison de leur proximité d'une grande route fréquentée par les touristes et aussi par les travaux publics.
  相似文献   
3.
This paper explores attempts to establish a network of firms and organizations to develop the multimedia industry at a regional level. The paper sets out its review in the context of the regional economy, and then details the nature of the networking process under investigation. An evaluation of networking in this context is provided, based on detailed empirical research. Lessons are drawn from the experiences of seeking economic modernization through organizational networks.  相似文献   
4.
New industrial innovation policies like smart specialization aim at boosting economic growth by diversification towards more complex and higher value economic activities. This paper proposes a conceptual and analytical framework to support the design and implementation of such policies considering place-specific preconditions, particularly the differentiation of the regional system of innovation and entrepreneurship and the degree of current industrial diversification. The paper expands on the links between these preconditions and the barriers and opportunities for industrial diversification. Consequently, it proposes an archetypical place-based policy framework covering overall policy objectives as well as measures at the level of actors, networks, and the institutional and organizational support structures.  相似文献   
5.
Der deutsch-tschechische Grenzraum liegt gewisserma?en in einer Sandwich-Position zwischen verschiedenen europ?ischen Makroregionen; auf europ?ischer Ebene wird er bislang eher als Verbindungselement wahrgenommen. Seine innere Struktur ist von einer relativ geringen Besiedlungsdichte und ausgepr?gten Stadt-Land-Unterschieden gekennzeichnet. Im Frühjahr 2006 gründeten die beiden nationalen Regierungen eine deutsch-tschechische Arbeitsgruppe für Raumentwicklung. Der Artikel skizziert, welche Ziele und Erwartungen damit verbunden werden und welche Funktionen ein solches Gremium übernehmen kann. Dazu wird zun?chst die Ausgangssituation dieses Raumes skizziert. Abschlie?end wird das m?gliche Leitbild des „Mitteleurop?ischen Kristalls“ vorgestellt.  相似文献   
6.
It is widely acknowledged in the literature that the study of blame avoidance behavior (BAB) exhibited by public officials is scattered and unconcentrated, and that, for the most part, it neglects both contextual factors and comparative research. These deficits inhibit the production of the kind of generalized findings necessary to better understand potential consequences for the policy process and the workings of political systems. We address these deficits by developing a framework that takes stock of blame avoidance research, clarifies the explanatory potential of contextual factors, and allows for a systematic context‐sensitive cross‐case analysis. For illustrative purposes, the framework is applied to the Home Insulation Program in Australia as a critical case. This case reveals the explanatory potential of contextual factors for the understanding of BAB and the consequences thereof. We conclude by stating the advantages of our framework and explain how it can be used for comparative research.  相似文献   
7.
Debates on how to address societal challenges have moved to the forefront of academic and policy concerns. Of particular importance is the growing awareness that to deal with issues such as ageing, it will be necessary to implement concerted efforts on technological, social, institutional or political fronts. Drawing on a number of theoretical perspectives – including socio-technical transitions and embedded state theory – the aim of this paper is to identify and understand different approaches to the governance of such system innovations by comparing state responses to assisted living in two contrasting national systems of care, namely that of the UK and Norway. Its findings highlight that state-supported and funded experimentation projects have been instrumental in designing and implementing system innovation: through their emphasis on co-design and co-creation, these projects demonstrated the value of early implementation pilots to explore the ‘fit’ between novel technologies and prevailing practices and institutional structures in national systems of care. Still, competition, biases or conflicting interests should not be ignored between well-established agents and institutions and experimental solutions whose efficacy remains relatively untested and which involve a combination of new technical, social, organizational and institutional solutions.  相似文献   
8.
9.
10.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号