全文获取类型
收费全文 | 385篇 |
免费 | 3篇 |
专业分类
388篇 |
出版年
2024年 | 8篇 |
2023年 | 5篇 |
2022年 | 5篇 |
2021年 | 5篇 |
2020年 | 23篇 |
2019年 | 27篇 |
2018年 | 23篇 |
2017年 | 22篇 |
2016年 | 29篇 |
2015年 | 14篇 |
2014年 | 9篇 |
2013年 | 64篇 |
2012年 | 22篇 |
2011年 | 5篇 |
2010年 | 11篇 |
2009年 | 17篇 |
2008年 | 20篇 |
2007年 | 11篇 |
2006年 | 12篇 |
2005年 | 10篇 |
2004年 | 3篇 |
2003年 | 7篇 |
2002年 | 10篇 |
2001年 | 9篇 |
2000年 | 7篇 |
1999年 | 2篇 |
1997年 | 5篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1993年 | 1篇 |
排序方式: 共有388条查询结果,搜索用时 15 毫秒
1.
In traditional Bantu-speaking societies in southern Africa, drought is caused by breaches in rules of pollution. At times of severe drought (3–5 consecutive seasons), rainmakers ascend special hills to perform special rituals. The archaeological signature of this unique activity forms a cultural proxy for drought. New research shows that burnt daga structures also correlate with high δ15N values for small stock. Burnt structures thus form a new component to the proxy. According to the ethnography, farmers implicated in the cause burnt their grain bins, and sometimes houses, as a ritual of cleansing. The dating of these structures provides a revised climatic sequence for the plateau portion of the summer rainfall region. Among other new results, there was a drought at the end of the Mapungubwe period (ca. AD 1300). At about AD 1650, droughts associated with the arrival of maize caused people to stop growing it as food for a while. 相似文献
2.
Isotopic analysis of skeletons excavated during the 1950s has confirmed that they are the remains of shipwreck victims: slaves on board the Portuguese slaving brig Pacquet Real when it sank on 18 May 1818. Twenty-five slaves drowned and the remaining 133 became Prize Negroes at the Cape. The isotopic signatures are consistent with values expected for people living in an African village eating a terrestrially based diet. Analyses of different skeletal elements, i.e., teeth, long bone, and rib, are shown to be a valuable tool in tracing change or consistency in diet during a person's life, because different skeletal elements form at different stages of life and, subsequently, remodel at different rates. A comparison of isotope ratios from different skeletal elements indicates a change in diet in all these individuals, probably coincident with their enslavement. Variation between individuals in the isotopic composition of diets eaten early in life is sufficiently large to deduce heterogeneous origins for the group. 相似文献
3.
城市蔬菜供应关联"民众一生活"和"社会一管理"两条渡动线,难怪通过"文革"夺权的造反派,在蔬菜供应淡季时,也得派人勘踏田头,各方调运,促进上市."文革"前,上海以三角地菜场为服务典范;"文革"中,上海以长寿支路菜场为服务样板.前后"优质服务"的套路、特色并无二致,支持系统的政治符号和政治指向,却因强调为"政治路线服务"而不一样.同时,蔬菜供应的背后,还存在着相当严重的贪污盗窃活动. 相似文献
4.
We investigate urban GDP per capita growth across the EU12 usingdata for functionally defined cities—rather than administrativeregions. We test hypotheses on the role of human capital, EUintegration and fragmentation of urban government and explorespatial dependence and mechanisms of spatial interaction. Resultsare acceptable on standard econometric tests without measuresof spatial interaction but there is spatial dependence. If variablesreflecting spatial adjustment are included, they are statisticallysignificant and eliminate spatial dependence. Not only do theresults now provide consistent estimates of parameters, butthey also support relevant theoretical insights and show nationalborders are still significant barriers to economic adjustment.People in Europe are sticky so it is unreasonable to assumespatial disparities will disappear. Our findings also implythat cities in Europe form national rather than a single continentalsystem. 相似文献
5.
Andrew D. Roberts 《The Journal of imperial and commonwealth history》2016,44(5):798-814
ABSTRACTBefore the Second World War, most Africans from British Tropical Africa who studied abroad were seeking qualifications in three professions: law, medicine and the Church. In all these, they could be reasonably sure of employment on their return. True, government employment was problematic, but law and medicine did offer the alternative – often more lucrative – of private practice. Much more threatening to colonial authority were arts students: those who read philosophy, literature, politics or sociology. This article focuses on several men who graduated in Britain or the USA: Kobina Sekyi, J.B. Danquah, James Aggrey, Bankole Awoonor-Renner (Gold Coast); Eyo Ita, Nathaniel Fadipe, Nnamdi Azikiwe – and his (mostly Igbo) protégés (Nigeria); Hosea Nyabongo, Balamu Mukasa, Ernest Kalibala (Uganda); Peter Koinange (Kenya). It concludes by surveying the career of Nicholas Ballanta-Taylor (Sierra Leone), who studied music in New York and in 1927 won a fellowship from the Guggenheim Foundation for musicological research in Africa. Of these pioneer African Africanists, four wrote successful doctoral theses, Azikiwe published an academic study. Aggrey and Fadipe died prematurely. Danquah applied his intellect to essentially non-academic pursuits. Ballanta, worked as a practical musician in the 1930s, but his African research remains virtually unpublished. 相似文献
6.
Rodrigo V. Cardoso 《European Planning Studies》2016,24(12):2197-2216
Within the debates about the socio-economic advantages of cohesive urban regions, several barriers to institutional integration are said to exist, especially when a metropolitan government is absent and integration relies on inter-municipal cooperation. Some barriers are associated with different urban region structures, such as the asymmetric power relations and sociocultural contrasts between municipalities in systems with dominant core cities, or the lack of a leading city to overcome fragmentation and provide a shared identity in polycentric urban regions (PURs). This paper investigates whether urban regions formed around second-tier cities, whose features depart from both dominant core and PUR models, are able to mitigate these barriers when pursuing integration strategies. The analysis relies on interviews with municipal leaders in three representative European case studies, examining how they perceive the barriers to inter-municipal relations in second-tier urban regions. The findings show that perceptions vary not only between regions, with the three cases following different trajectories of integration, but also within regions, according to the geographical and socio-economic context of municipalities and the legacy of past relations. In general, barriers to integration are not minimized without explicit efforts to rebalance power relations, approach political cultures, mobilize core city leadership and develop a metropolitan identity. 相似文献
7.
Paul Maylam 《African Historical Review》2016,48(1):21-35
Over the years, many members of the Rhodes University community have proudly claimed their university to be a kind of transplanted Oxford, while others have viewed this claim as pretentious – hence the derogatory label ‘Oxford in the bush’. This article explores the connections and comparison between the two institutions. In the early twentieth century, both universities strongly identified with the British imperial cause; and for decades Rhodes University regularly celebrated its symbolic association with the historical figure of Cecil Rhodes, who also happens to be one of the most commemorated figures in Oxford. There was also a shared ethos, as both laid stress on a style of education that was character-building, a prerequisite for which was a strong grounding in the classics. There was, too, a cultural affinity between Rhodes and Oxford, exemplified in the strict segregation of the sexes, the importance attached to sporting achievement, and a tendency to engage in frivolous activities. The article goes on to show how over time the Oxford tradition at Rhodes came to be challenged and undermined, especially from the late 1960s onwards. 相似文献
8.
James Denbow Jeannette Smith Nonofho Mathibidi Ndobochani Kirsten Atwood Duncan Miller 《Journal of archaeological science》2008
Excavations at the site of Bosutswe on the eastern edge of the Kalahari Desert in Botswana have uncovered over 4 m of deposit ranging in age from CE 700 to 1700. Our research has produced quantitative and qualitative measures of the material and ecological dimensions that structured the everyday actions and behaviors through which social identities were constituted, maintained, and transformed during the period when the polities of Toutswe, Mapungubwe, Great Zimbabwe and Khami rose to power. By examining the material dimensions that underlay shifting relations of production, exchange, and social stratification we are able to contextualize the social judgments that ascribed value to material goods and food ways, while specifying the ways these were used to create and naturalize social relationships and power differentials. Stable isotope analyses, combined with evidence of vitrified dung, further enable us to suggest changes in herd management strategies used by the inhabitants of the site to compensate for ecological changes brought about by long-term occupation, while at the same time enabling them to economically tie subordinates to them as social divisions became more rigidly defined after CE 1300. The cultural and economic changes that took place at Bosutswe thus directly impact our understanding of the social transformations that immediately preceded contemporary configurations of ethnicity in Botswana. 相似文献
9.
Kevin G Ward 《Transactions (Institute of British Geographers : 1965)》2000,25(2):169-185
One of the most profound changes of the last two decades has been in the form and the function of local government. Its role as part of the local state has been challenged through the re-scaling and re-configuration of many of its aims. This paper examines the growth of business sector involvement and the ascendancy of the partnership model in urban development, as part of an analysis of the changes and the continuities that stretch across the local government – local governance conceptualization of political relations. I start the paper with a discussion of the main issues in the local governance literature as a precursor to a commentary onImrie and Raco's (1999) recent paper, 'How New is the New Local Governance? Lessons from the United Kingdom'. The wider literature is drawn upon to discuss some of the theoretical approaches used to analyse this much-vaunted transformation and three key themes are used to structure the remainder of the paper. I argue that Imrie and Raco caricature the work of other academics in order to make their claims over omissions from the literature. In doing so, they ignore or under-play how state restructuring and the logic of capital has often been the object of analysis, rather that the voluntarist incorporation of business élites into the local governing apparatus. Using empirical examples from three English cities I argue that while, on the one hand, their examples are revealing and serve to sensitize current debates around governance, the state and regulation, on the other hand, there is still a need to interpret these 'local' politics within a broader and more scale-sensitive framework and in more abstract terms. This demands a clear distinction between local governance as a concept, and its investigation in an empirical way. 相似文献
10.
Carolyn Cartier 《Eurasian Geography and Economics》2019,60(4):376-399
ABSTRACTSince the late twentieth century, the subject of China becoming urban has appeared in the scholarship across the disciplines while spectacular images of China’s cities, and narratives about their developmental achievements, have proliferated in global media. Simultaneously, the parallel “spatial turn” in social thought invigorated geographical approaches to cities and urban change. Yet at this promising meeting ground, between contemporary geographical thought and urban-industrial transformation in China, research has tended to demonstrate a “loss of space” through patterns of dependence on analog circulation of exemplar paradigms that derive from the history of the capitalist city and liberal political economy. What drives this condition and what do we know about its practices and proliferation? This inquiry challenges research design and the politics of theory to consider how routine adoption of capital-centric concepts for research on cities in China arguably reflects the priority of paradigms in the disciplines and their conjunctures with exemplarity in Chinese society and political philosophy. These interstices facilitate application of analog models, and selective adoption of empirical information to suit them, with the paradoxical result of portraying cities in China through multiple capitalist aesthetics including a relatively narrow range of empirics framed by market-based social thought. 相似文献