全文获取类型
收费全文 | 157篇 |
免费 | 6篇 |
出版年
2020年 | 5篇 |
2019年 | 6篇 |
2018年 | 10篇 |
2017年 | 6篇 |
2016年 | 10篇 |
2015年 | 5篇 |
2014年 | 4篇 |
2013年 | 36篇 |
2012年 | 6篇 |
2011年 | 4篇 |
2010年 | 3篇 |
2009年 | 1篇 |
2008年 | 3篇 |
2007年 | 2篇 |
2006年 | 1篇 |
2005年 | 4篇 |
2004年 | 3篇 |
2003年 | 2篇 |
2002年 | 1篇 |
2001年 | 4篇 |
1999年 | 4篇 |
1998年 | 2篇 |
1997年 | 3篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1993年 | 3篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1989年 | 1篇 |
1986年 | 2篇 |
1984年 | 1篇 |
1982年 | 4篇 |
1981年 | 2篇 |
1980年 | 1篇 |
1979年 | 3篇 |
1978年 | 1篇 |
1977年 | 2篇 |
1975年 | 1篇 |
1972年 | 1篇 |
1970年 | 1篇 |
1967年 | 2篇 |
1966年 | 2篇 |
排序方式: 共有163条查询结果,搜索用时 31 毫秒
31.
32.
By Emma Pomeroy Jennifer Grant Devin Ward Sam Benady Ma Cristina Reinoso del Río José Ma Gutierrez López 《Post-Medieval Archaeology》2013,47(2):239-255
SUMMARY: In 2014, during construction work at the ex-Civil Hospital in Gibraltar, excavations led by the Gibraltar Museum revealed a major, previously unknown burial ground containing more than 200 skeletons. We present the historical, archaeological and radiometric dating evidence from the site alongside the results of initial osteological analyses. The data indicate that the burials pertain to an earlier 16th-century Spanish hospice, and therefore stand to offer new insights into the functioning of this early modern hospital and the health and movements of people at a time of incipient globalization. 相似文献
33.
Júlio Cesar. de A. Marsola Gerald Grellet-Tinner Felipe C. Montefeltro Juliana M. Sayão Annie Schmaltz Hsiou Max C. Langer 《Alcheringa: An Australasian Journal of Paleontology》2013,37(4):563-567
Marsola, J.C.A., Grellet-Tinner, G., Montefeltro, F.C., Sayão, J.M., Hsiou, A.S. & Langer, M.C., 2014. The first fossil avian egg from Brazil. Alcheringa 38, 563–567. ISSN 0311-5518.In contrast to the rich record of eggs from non-avian dinosaurs, complete eggs attributable to Mesozoic birds are relatively scarce. Nevertheless, several well-preserved specimens have been discovered over the last three decades revealing functional and phylogenetic characters that shed light on the breeding strategies of extinct birds. Here we report the first fossil avian egg from Brazil, which was discovered in Upper Cretaceous strata of São Paulo in the southeastern part of the country. The taxonomic identity and structural features of the biomineralized tissues were determined using a combination of Scanning Electron Microscopy, Wave Dispersion Energy analyses and Computed Tomography. These show that the 125.5-μm-thick shell of the 31.4?×?19.5?mm egg incorporates three structural layers of similar thickness with both prismatic and aprismatic boundaries. Close similarity between the Brazilian bird egg and those of enantiornithines from the Upper Cretaceous Bajo de la Carpa Formation (Río Colorado Subgroup) of Argentina advocates affinity with basal Ornithothoraces. Furthermore, coherency of their depositional contexts might imply a compatible preference for breeding and nesting environments.Júlio Cesar de A. Marsola [juliomarsola@gmail. com], Annie Schmaltz Hsiou [anniehsiou@ffclrp. usp. br] and Max C. Langer [mclanger@ffclrp. usp. br], Laboratório de Paleontologia de Ribeirão Preto, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, São Paulo state, 14040-901, Brazil. Gerald Grellet-Tinner [locarnolugano@gmail. com], Centro Regional de Investigaciones La Rioja—Consejo Nacional de Investigaciones Científicas y Técnicas, Entre Ríos y Mendoza s/n, 5301 Anillaco, Argentina; Orcas Island Museum, PO Box 134, 181 North Beach Road, Eastsound, WA 98245. Felipe C. Montefeltro [felipecmontefeltro@gmail. com], Departamento de Zoologia, Universidade Estadual Paulista, Avenida 24A 1515, Rio Claro, São Paulo State, 13506-900, Brazil. Juliana M. Sayão [jmsayao@gmail. com], Laboratório de Diversidade do Nordeste, Núcleo de Biologia, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Rua do Alto do Reservatório s/n, Bela Vista, Vitória de Santo Antão, Pernambuco state, 52050-480, Brazil. Received 18.12.2013; revised 30.4.2014; accepted 18.5.2014. 相似文献
34.
Attempts to transform political agendas are closely associated with the role of the media in shaping perceptions, reflecting programs of political organisations, influencing institutional practices and applying pressure on divergent interests. By examining the role of an influential news magazine in voicing concerns about welfare and environment policies over a 40-year period, this article tests arguments about the salience of 'old' and 'new' politics issues as well as the changing character of debates about these questions in efforts to create a sustainable, competitive and global economy. Apart from examining the capacity of the media to change their storylines (or ways of thinking about an issue), the article considers how they attempt to draw on credible news sources to substantiate their reports. 相似文献
36.
37.
38.
Hilary Grant 《International Journal of Heritage Studies》2018,24(6):573-584
Hailed as ‘cathedrals of the plains’ and ‘prairie sentinels’, grain elevators are iconic of Saskatchewan, Canada. Yet with fewer than four hundred and twenty of the original 3300 still standing, Saskatchewan’s historic grain elevators are disappearing at an alarmingly accelerated rate. The loss of historic grain elevators is twice the average loss in historic fabric in Canada in a third of the time despite their being the most widely cited heritage structure by Saskatchewanians. This paper deciphers this dilemma through Nancy Fraser’s three-dimensional model of participatory parity, which serves to reconcile cultural, economic and political pressures on the heritage field and rebalances the field’s disproportionate focus on recognition. This model reveals how larger systems of representation and distribution are impacting official grain elevator recognition under Saskatchewan’s Heritage Property Act (1980) and proposes solutions to increase grain elevator preservation in Saskatchewan. 相似文献
39.
Eva Svensson Hilde Rigmor Amundsen Ingunn Holm Hans Hulling Annie Johansson Jan Löfgren 《International Journal of Heritage Studies》2018,24(1):17-34
There is a rich, but unacknowledged, heritage of rural subalterns, crofters, in Scandinavia. A Swedish-Norwegian interdisciplinary research-network investigated the most prominent category – the remains of crofts. Due to industrialisation, urbanisation and the modern welfare state, the institution of crofting was abolished, and many crofters left for opportunities elsewhere. The welfare state transformed a landscape of living and working people into a one filled with relicts mostly from the nineteenth century. Although numerous and important to local citizens, these sites fall outside the authorised heritage discourse (AHD) in terms of both research and heritage management. This paper takes an environmental justice perspective to challenge the AHD. Three themes are in focus: (1) bringing out the history of a subaltern and marginalised group of people; (2) promoting crofts as heritage of importance to local citizens and demanding complex management due to the various historical narratives and risks; (3) considering the crofting landscapes in relation to the (economisation) framing of heritage in development processes, especially in relation to fair development in present rural communities. 相似文献
40.
Utilizing data from a survey of 60 national public interest group founders, this paper addresses two related questions: (a) What factors explain the (relatively) recent proliferation of public interest groups? (b) What factors determine in which policy areas public interest group activity is most likely? The results of the data analysis suggest that several factors have contributed to group proliferation. Among the most important are law group start-up costs, the spread of affluence and education, an increase in patron activity, and rapid societal change. The results also suggest that public interest group activity is most likely in issue areas of interest to well-educated, affluent whites. Ultimately, however, the data suggest there is bound to be a great deal of uncertainty in the public interest group universe. Because group start-up costs are so low and the entrepreneurial pod is so large and varied, virtually any type of public interest group dealing with any issue could form at any time. 相似文献