全文获取类型
收费全文 | 216篇 |
免费 | 17篇 |
出版年
2023年 | 4篇 |
2021年 | 3篇 |
2020年 | 4篇 |
2019年 | 5篇 |
2018年 | 11篇 |
2017年 | 13篇 |
2016年 | 13篇 |
2015年 | 8篇 |
2014年 | 5篇 |
2013年 | 51篇 |
2012年 | 7篇 |
2011年 | 10篇 |
2010年 | 7篇 |
2009年 | 5篇 |
2008年 | 7篇 |
2007年 | 5篇 |
2006年 | 2篇 |
2005年 | 6篇 |
2004年 | 2篇 |
2003年 | 6篇 |
2002年 | 4篇 |
2001年 | 3篇 |
2000年 | 3篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1989年 | 2篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 2篇 |
1983年 | 3篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 3篇 |
1979年 | 1篇 |
1977年 | 1篇 |
1976年 | 4篇 |
1975年 | 2篇 |
1973年 | 3篇 |
1972年 | 1篇 |
1971年 | 2篇 |
1969年 | 1篇 |
1968年 | 1篇 |
1954年 | 2篇 |
排序方式: 共有233条查询结果,搜索用时 15 毫秒
201.
Sally Lindsay 《The Canadian geographer》2004,48(1):35-51
Given the recent focus of medical geography on the social influences of health and illness, this paper draws upon a socio‐theoretical framework to show the link between pregnancy health and the spaces of everyday life. The health of pregnant women is becoming increasingly important given that 85 percent of women work during their pregnancy. Employment during pregnancy is consistently linked with good health for infants; however, large discrepancies exist on the effects for employed mothers. This study estimates the health effect of women's employment during pregnancy with data from the National Longitudinal Survey of Children and Youth. Findings show that women's involvement in paid employment has a beneficial impact for infants compared to women not involved in paid labour. Women who work one job or more per week experience more health problems than women who work less than one job per week. Finally, women who work in male‐dominated and gender‐neutral workspaces experience significantly more prenatal problems than women in female‐dominated workspaces. In conclusion, there is evidence to support that differences in employment status, number of workplaces involved in and gendered workspaces influence the experience of health and illness that are negotiated in the spaces of everyday life. 相似文献
202.
A Reexamination of Output Convergence in the U.S. States: Toward Which Level(s) are they Converging?
ChiYoung Choi 《Journal of regional science》2004,44(4):713-741
Abstract. This paper reexamines the issue of output convergence among the 48 states in the continental United States. Implementing multiple panel data techniques to state per capita output during the period 1929–2001 reveals little evidence of stochastic convergence in all 48 states, but some evidence among collections of states at the regional level. This observation may suggest that output convergence in the United States has proceeded among geographically neighboring states rather than among distant states, notwithstanding the nearly complete integration of product and factor markets. Our findings appear to be robust to a subsample analysis, although the intensity of convergence varies with the choice of output measure and deflator. Industrial structures and geographic proximity are considered as potential explanations for the regional pattern of output growth dynamics. 相似文献
203.
204.
Geographers have argued that the emergence of the geospatial web, or geoweb, represents a radical shift away from the state's monopolization of geospatial technologies. Like the public participation geographic information systems (PPGIS) movement before it, the geoweb research agenda has emphasized a desire for empowerment and participatory democracy. However, this research agenda has also inherited a conceptualization of power that emphasizes the linkages between empowerment and public visibility, and this paper argues that this inheritance opens potentially sensitive geoweb data to exploitation. Geographers therefore have an important role to play in emphasizing the need to explore ways of harnessing the power of the geoweb for marginalized communities while nonetheless maintaining those communities' privacy. This paper uses work with the Maijuna indigenous people of Peru as a case study to begin a discussion about how the political goals of disempowered people may be best obtained through both public and private uses of the geoweb. 相似文献
205.
Sally Shortall Bettina Bock 《Gender, place and culture : a journal of feminist geography》2015,22(5):662-669
Gender relations are socially constructed. Space and culture are key factors in this process. We consider how women's identity is constructed in rural areas of Europe. In particular, we examine the ability of gender mainstreaming to advance gender equality through the EU Rural Development Programme – the single most expensive European policy. We offer both overarching theoretical perspectives and specific case studies. 相似文献
206.
Sally K. May Melissa Marshall Inés Domingo Sanz Claire Smith 《Public Archaeology》2017,16(3-4):172-190
In this paper we investigate the pedagogy of archaeological field schools. Specifically, we explore the combination of tertiary level field schools and Indigenous community (or community-based) archaeology. Using a detailed case study of a rock art field school in Arnhem Land, Australia, we explore the processes and outcomes of combining archaeological field training with the ideas and methods of community archaeology. We discuss the relationship and unique challenges faced by such community archaeology field schools, particularly that of balancing the priorities of competing stakeholders. Our discussion illustrates the complexities of training students to work in an environment where cultural belief systems are still strongly linked to sites and landscapes. While the challenges are numerous, the outcomes, particularly for students, provide an unparalleled educational experience, one that cannot be obtained in any other learning format. 相似文献
207.
Biostratigraphic Evidence Relating to the Age‐Old Question of Hannibal's Invasion of Italy,I: History and Geological Reconstruction
下载免费PDF全文
![点击此处可从《Archaeometry》网站下载免费的PDF全文](/ch/ext_images/free.gif)
W. C. Mahaney C. C. R. Allen P. Pentlavalli A. Kulakova J. M. Young R. W. Dirszowsky A. West B. Kelleher S. Jordan C. Pulleyblank S. O'Reilly B. T. Murphy K. Lasberg P. Somelar M. Garneau S. A. Finkelstein M. K. Sobol V. Kalm P. J. M. Costa R. G. V. Hancock K. M. Hart P. Tricart R. W. Barendregt T. E. Bunch M. W. Milner 《Archaeometry》2017,59(1):164-178
Controversy over the alpine route that Hannibal of Carthage followed from the Rhône Basin into Italia has raged amongst classicists and ancient historians for over two millennia. The motivation for identifying the route taken by the Punic Army through the Alps lies in its potential for identifying sites of historical archaeological significance and for the resolution of one of history ' s most enduring quandaries. Here, we present stratigraphic, geochemical and microbiological evidence recovered from an alluvial floodplain mire located below the Col de la Traversette (~3000 m asl—above sea level) on the French/Italian border that potentially identifies the invasion route as the one originally proposed by Sir Gavin de Beer (de Beer 1974 ). The dated layer is termed the MAD bed (mass animal deposition) based on disrupted bedding, greatly increased organic carbon and key/specialized biological components/compounds, the latter reported in Part II of this paper. We propose that the highly abnormal churned up (bioturbated) bed was contaminated by the passage of Hannibal ' s animals, possibly thousands, feeding and watering at the site, during the early stage of Hannibal ' s invasion of Italia (218 bc ). 相似文献
208.
209.
The stable carbon isotope compositions (δ13C) of tropical lake sediments and soils have been used to reconstruct the occurrence of prehistoric maize cultivation and its relative importance through time. This study assesses some of the possible variables affecting the response of lake sediment bulk organic carbon isotope (δ13CTOC) values to variations in the scale of prehistoric maize cultivation and the potential of this proxy to yield quantitative estimates of the scale of prehistoric maize agriculture in small tropical watersheds. High resolution analyses of δ13CTOC values, maize pollen concentrations, and mineral influx were conducted on sediments deposited during a ∼220 year period of prehistoric maize agriculture in the watershed of Laguna Castilla, a small lake in the mid-elevations of the Cordillera Central, Dominican Republic. Close correspondence between δ13CTOC values and maize pollen concentrations in the Laguna Castilla sediment record indicates a close relationship between the isotopic values and the scale of prehistoric maize cultivation. Correlations between the δ13CTOC signature and mineral influx indicate that the isotope record is also sensitive to variations in allochthonous carbon delivery. This study establishes that sedimentary δ13CTOC values can provide a highly sensitive proxy of the spatial scale of prehistoric maize agriculture in small tropical watersheds, but emphasizes the need for a better understanding of sediment dynamics and carbon cycling in anthropogenically modified landscapes before this proxy can be widely employed in diverse archaeological settings. 相似文献
210.