全文获取类型
收费全文 | 173篇 |
免费 | 6篇 |
专业分类
179篇 |
出版年
2019年 | 7篇 |
2018年 | 5篇 |
2017年 | 8篇 |
2016年 | 7篇 |
2015年 | 4篇 |
2014年 | 9篇 |
2013年 | 34篇 |
2012年 | 6篇 |
2011年 | 5篇 |
2010年 | 1篇 |
2009年 | 3篇 |
2008年 | 6篇 |
2007年 | 4篇 |
2006年 | 3篇 |
2005年 | 3篇 |
2004年 | 2篇 |
2003年 | 1篇 |
2002年 | 4篇 |
2001年 | 1篇 |
2000年 | 3篇 |
1999年 | 1篇 |
1998年 | 3篇 |
1997年 | 1篇 |
1995年 | 4篇 |
1994年 | 3篇 |
1993年 | 7篇 |
1992年 | 1篇 |
1991年 | 3篇 |
1990年 | 1篇 |
1989年 | 3篇 |
1988年 | 1篇 |
1987年 | 2篇 |
1985年 | 5篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1974年 | 2篇 |
1972年 | 4篇 |
1969年 | 2篇 |
1968年 | 1篇 |
1967年 | 1篇 |
1966年 | 1篇 |
1953年 | 1篇 |
排序方式: 共有179条查询结果,搜索用时 15 毫秒
91.
Valerie L. Dean 《International Journal of Osteoarchaeology》1995,5(1):1-14
This study explores the changes in sinus and meningeal vessel patterns caused by various types of artificial cranial deformation. Endocranial casts were prepared from six crania exhibiting one of three types of deformation (lambdoid, parallelo-fronto-occipital and fronto-vertico-occipital), as well as from 15 undeformed crania. Vessel and sulcus patterns of each cranium were analysed and these patterns included depth of impressions, size and number of vessels, and directional pathways of vessels. Comparisons were made within and between the different deformation types. The results indicated that deformation has an effect upon the pattern, shape and depth of vessel impressions. Vessels tended to be flattened in the areas directly affected by cranial deformation, and there was often compensatory enlargement of other vessels. Further, three of the six artificially deformed crania exhibited enlarged occipital/marginal sinuses, suggesting that this trait is developmentally plastic and greatly influenced by environmental factors. 相似文献
92.
93.
Gareth Potts 《European Planning Studies》2002,10(8):987-1012
As several senior figures in UK Government have recently professed to want to promote the knowledge-driven economy across the nation, discussion of university-industry ties in less-favoured regions is particularly salient. This account documents how UK central government efforts to encourage greater university-industry links have increasingly taken on a regional dimension but then stresses that these efforts do not constitute a 'regional policy' (in the traditional sense of measures that seek to reduce interregional economic disparities). This activity is then set within the context of overall Government and European Union (EU) funding to universities which is also at odds with stated government aims of lessening regional economic disparities. The article goes on to highlight how mainstream regional policy, particularly that of the European Commission, has seen considerable support for university-industry activity in the regions but has faced an uncertain future due largely to the spectre of fund-draining EU expansion. The article concludes by asking what policies might be pursued for university-industry links to be increased in weaker regions. The underlying aim of the article is to contribute towards raising the profile of universities in debates about reducing interregional economic disparities (that must, in turn, be much higher on the public policy agenda). 相似文献
94.
Trevor Dean 《European Review of History》2011,18(4):545-561
This paper examines a key issue in the history of the climate in the pre-instrumental period, that is, how to use narrative sources which make frequent references to weather events, but which need contextualised interpretation. The paper follows an argument that climatological techniques for deriving temperature indices from chronicles, though they have become increasingly elaborate and refined, nevertheless leave out much that is of interest to the social historian. This paper explores the area of the what-is-left-behind when chronicle narratives are reduced to numerical indices. Investigating a broad range of Latin and Italian chronicles from fourteenth and fifteenth-century Italy, the paper draws three main conclusions: that sensitivity to weather events not only varied greatly among writers (as one might expect) but so too did their use of severe weather to serve the purposes of narrative (through sequencing, metaphor and analogy); that sensitivity to meteorological anomaly changed during the period, especially in the fifteenth century with the spread of prognosticating verses; and that the broadening of chroniclers' interests in weather, both ordinary and extraordinary, and in its effects on everyday, material life may allow a connection to and re-evaluation of the Burckhartian idea of the Renaissance ‘discovery of the world’. 相似文献
95.
C. Richard Bates Mark Lawrence Martin Dean Philip Robertson 《International Journal of Nautical Archaeology》2011,40(2):404-416
Rapid advances in geophysical techniques over the past decade have provided the maritime archaeological community with significant opportunities for re‐defining the procedures for wreck‐site mapping, evaluation and monitoring. The techniques which offer most potential for high‐resolution survey are acoustic‐based and include sidescan sonar, swath‐bathymetry sonar and multibeam sonar. These techniques were tested on an artificial test‐site in Plymouth Sound and over the wreck of the Stirling Castle. Results demonstrate that the techniques can provide the maritime archaeologist with the opportunity to rapidly and cost‐effectively map and monitor small, centimetric changes on sites, with the potential for long‐term monitoring and management. © 2009 The Authors 相似文献
96.
Andrea Rishworth Ashika Niraula Jennifer Dean Kathi Wilson Effat Ghassemi Amanda Baldo 《The Canadian geographer》2023,67(2):253-271
The Canadian government recently launched initiatives to promote immigrant settlement outside of traditional gateway cities, in small towns and rural areas. These initiatives attempt to mitigate socio-economic impacts of population decline, and address barriers to successful integration in urban areas. Drawing on the geographies of hope, this paper examines how newcomers navigate hopes as they imagine rural resettlement in Ontario. Based on focus groups with immigrants (n = 50), the findings suggest that newcomers' imagined rural futures are a dynamic and mobile process, shaped by competing hopes for a stable life. Rural imaginaries can sometimes provide a generative space to realize hopes and develop new future aspirations, other times they can constrain hopes for intergenerational futures. We contend that newcomer hopes arise in moments of relocation uncertainty, shaped by competing visions, interests, and priorities at individual and collective scales. Newcomers' expectations of rural futures are always enlivened with a sense of optimism for what has not yet become, but are equally replete with angst and anxiety for the future. This article concludes that future geographic research on migration-hope-place interactions, particularly in the health subfield, should engage constructions, experiences, and enactments of hope that mediate relocations and the policies governing them. 相似文献
97.
98.
99.
Dean M. Hanink 《Geographical analysis》1989,21(2):122-133
Product differentiation trade models have been developed in order to account for some contemporary patterns of international trade that are inexplicable under the theory of comparative advantage. This paper presents the case for the geographical differentiation of products. A generalized geographical product differentiation model of trade competition in industrial third markets is outlined within a discrete choice framework. The model treats product price and quality, as determined by country of origin, as distinct variables in export competition. An indirect empirical test of the model's validity, using the cases of export competition between the United States and the Federal Republic of Germany and the United States and Japan, indicates that the generalized model is worthwhile in its ability to account for successful trade competition. 相似文献
100.
The Northeast is comprised of interior and coastal areas that were historically occupied by Iroquoians and Algonquians respectively. This brief review sets aside most Euroamerican historical archaeology and developments prior to A.D. 900 to concentrate on recent research that has dominated regional attention and is most likely to be of interest to archaeologists working elsewhere. The review argues that while Iroquoian archaeologists often work with or against broad controlling models of long standing, archaeologists in the Maritimes and New England more often focus on technical problems that are relevant to shared interests in broad topical issues. The contrast relates to both differences in the their databases and differences in how archaeological research is conceived. 相似文献