全文获取类型
收费全文 | 279篇 |
免费 | 10篇 |
出版年
2023年 | 3篇 |
2022年 | 1篇 |
2021年 | 1篇 |
2020年 | 6篇 |
2019年 | 8篇 |
2018年 | 18篇 |
2017年 | 20篇 |
2016年 | 15篇 |
2015年 | 12篇 |
2014年 | 10篇 |
2013年 | 47篇 |
2012年 | 10篇 |
2011年 | 10篇 |
2010年 | 8篇 |
2009年 | 10篇 |
2008年 | 6篇 |
2007年 | 3篇 |
2006年 | 4篇 |
2005年 | 3篇 |
2004年 | 4篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2001年 | 3篇 |
2000年 | 4篇 |
1999年 | 2篇 |
1998年 | 4篇 |
1997年 | 6篇 |
1996年 | 5篇 |
1995年 | 5篇 |
1994年 | 5篇 |
1993年 | 4篇 |
1992年 | 4篇 |
1991年 | 3篇 |
1990年 | 6篇 |
1989年 | 5篇 |
1988年 | 4篇 |
1987年 | 5篇 |
1986年 | 9篇 |
1985年 | 1篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1975年 | 1篇 |
1974年 | 1篇 |
1973年 | 2篇 |
1972年 | 1篇 |
1971年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有289条查询结果,搜索用时 15 毫秒
21.
22.
Mariana de Campos Françozo 《History & Anthropology》2017,28(3):349-374
This article analyses a collection of 26 watercolour drawings which portray ethnographic types from the Americas, Asia, and Africa. These drawings, presently kept at the British Library, were made for John Locke by his servant Sylvester Brounower during Locke’s exile in the Netherlands in the 1680s. 相似文献
23.
The territorial and spatial planning impacts of European Union (EU) economic and competition policies have remained under-researched in the field of European spatial planning, in contrast to other EU policy fields. This briefing explores how two elements of the EU competition policy, the regulation of “state aid” and the liberalization of “services of general interest (SGI)”, have significant implications for the pursuit of the objective of territorial cohesion through spatial planning and territorial development policies at different scales. The paper first reviews the development of the concept of territorial cohesion in the EU discourse and policy agenda since the mid-1990s, as well as the contribution of public services (Services of General Interest, or SGI in EU jargon) to it. It, then, reviews how the EU state aid rules and liberalization policies affect the state's ability to intervene (i) in support of sub-national territories which are lagging behind or suffering decline, and (ii) in the provision of public services across the national territory, specifically in peripheral regions or areas where the provision is not catered for by the market. The conclusion of the paper outlines the additional challenges to the pursuit of territorial cohesion in the EU posed by the post-2008 economic crisis and suggests avenues for future research. 相似文献
24.
ABSTRACT We investigate how cross‐country differences in firms' fixed set‐up costs affect the trade‐off between global efficiency and spatial equity. Our analysis reveals that the standard assumption of symmetry in set‐up costs masks the existence of an interesting effect: the range of available varieties depends on the spatial distribution of firms. In such a setting, where the market outcome leads to excessive agglomeration in the symmetric case, a planner may opt for asymmetric set‐up costs and even more agglomeration. We show that the planner will always favor lower set‐up costs in the large country with more agglomeration when the consumer's marginal preference for variety is high, or with less agglomeration when the consumer's marginal preference for variety is low. 相似文献
25.
Fran Martin 《Children's Geographies》2008,6(4):437-450
In the context of education in England, an argument is put forward that Geography, as it is conceptualised in the National Curriculum, does not connect to either primary school pupils or their teachers. Reasons for this are explored and a proposal is made for a new paradigm for primary geography: ethnogeography. This proposal parallels work on ethnomathematics, which provides a political agenda to the study of maths and itself draws from Paulo Freire's politicization and consciousness raising through adult literacy. This pattern is applied to learning in geographical education. Drawing on the findings of a recent research project, a case is argued for ethnogeography and the implications for primary Initial Teacher Education courses, learners and the curriculum in primary schools and are considered. 相似文献
26.
27.
28.
29.
30.
Erwan Messager Aïcha Badou François Fröhlich Brigitte Deniaux David Lordkipanidze Pierre Voinchet 《Archaeological and Anthropological Sciences》2010,2(1):25-34
Mineralised fruits and seeds are frequently found in archaeological sediments but their chemical nature has not been often
examined. The nature and the origin of these archaeobotanical remains have to be investigated to understand their taphonomic
history. Fruits or seeds can be mineralised not only by replacement mineralisation but also by biomineralisation during the
plant life. The mineral components of three fossil fruits sampled on the Pleistocene site of Dmanisi were analysed and compared
with their modern analogues. Analyses were carried out by means of an environmental scanning electron microscope, equipped
with an energy dispersive X-ray device and by means of a Fourier transform infrared spectrometer. Biogenic carbonates and/or
biogenic silica were identified in the fossil and modern fruits of some taxa. Comparison between fossil and modern specimens
has shown that molecular reorganisation occurred in carbonate and in biogenic silica during fossilisation, through diagenetic
processes. The resulting stable mineral structures confer an exceptional preservation to fruits in sediments. Taking into
account these taphonomic specificities (transformation and differential preservation), the chronological and palaeoenvironmental
aspects of the mineralised fruits are discussed. 相似文献