全文获取类型
收费全文 | 2330篇 |
免费 | 106篇 |
出版年
2023年 | 15篇 |
2020年 | 40篇 |
2019年 | 63篇 |
2018年 | 99篇 |
2017年 | 113篇 |
2016年 | 102篇 |
2015年 | 80篇 |
2014年 | 71篇 |
2013年 | 591篇 |
2012年 | 70篇 |
2011年 | 85篇 |
2010年 | 67篇 |
2009年 | 71篇 |
2008年 | 72篇 |
2007年 | 57篇 |
2006年 | 53篇 |
2005年 | 44篇 |
2004年 | 44篇 |
2003年 | 35篇 |
2002年 | 47篇 |
2001年 | 43篇 |
2000年 | 38篇 |
1999年 | 26篇 |
1998年 | 32篇 |
1997年 | 36篇 |
1996年 | 26篇 |
1995年 | 22篇 |
1994年 | 16篇 |
1993年 | 15篇 |
1992年 | 20篇 |
1991年 | 10篇 |
1990年 | 13篇 |
1989年 | 17篇 |
1988年 | 12篇 |
1987年 | 11篇 |
1986年 | 12篇 |
1985年 | 16篇 |
1984年 | 23篇 |
1983年 | 24篇 |
1982年 | 22篇 |
1981年 | 15篇 |
1980年 | 21篇 |
1979年 | 17篇 |
1978年 | 19篇 |
1977年 | 14篇 |
1976年 | 15篇 |
1975年 | 13篇 |
1974年 | 9篇 |
1973年 | 8篇 |
1971年 | 8篇 |
排序方式: 共有2436条查询结果,搜索用时 31 毫秒
991.
992.
Michael M. Atkinson Stephen White David McGrane 《The American review of Canadian studies》2016,46(1):55-73
In an influential 2002 study, John Hibbing and Elizabeth Theiss-Morse make the provocative argument that high numbers of Americans seek “stealth democracy,” that is, processes that discover the will of the people without requiring substantial citizen effort. This article applies the concept in a Canadian province and argues that the stealth democracy measure represents an ambiguous amalgam of attitudes that are only loosely related to one another, and which do not appear to represent a single, underlying concept. We draw on 2011 Saskatchewan Election Study data and find that Saskatchewan responses to the stealth democracy items generally parallel the responses gathered in previous studies conducted in the United States, Finland, Britain, and Australia. We move beyond these studies by examining the components of the stealth democracy index. We conclude by suggesting that the concept of stealth democracy be rebuilt to better distinguish among attitudes toward democracy, politics, and governing. 相似文献
993.
Michael F. Lane Timothy J. Horsley Alexandra Charami Weston S. Bittner 《Journal of Field Archaeology》2016,41(3):271-296
Between 2010 and 2012, the AROURA project conducted magnetometric prospection in the ancient polder around the Late Bronze Age (ca. 1300–1190 b.c.) fortress of Glas, mainland Greece. As had been hypothesized, the anomalies detected were consistent with a system of agricultural fields. This system appears to have been irrigated and drained through previously identified hydraulic mechanisms in and around the polder. Comparison of soil profiles of anomalies with those of background areas, including their magnetic susceptibilities, corroborated magnetometric data. Anomalies were traced from sampled to unsampled areas through corresponding reclassified satellite bandwidths. Constituent sediments of features discovered were dated to the Late Bronze Age through AMS radiocarbon and OSL analyses. The results validated the use of extensive geophysics to detect and investigate ancient agricultural landscapes. 相似文献
994.
995.
Michael Powell 《The Journal of imperial and commonwealth history》2016,44(2):352-371
Banishment in English law was circumscribed by the Magna Carta and habeas corpus and prohibited except by legal procedure. The Transportation Act of 1718 legalised exile and enshrined convictism in law. The case of Bancoult (No.2), 2008, which considered the banishment of the Ilois of Chagos Island in the 1960s, brought consideration of banishment into the twentieth century and opened the royal prerogative to modern scrutiny. What becomes clear from this case is that banishment relied on royal prerogative without resort to legal process and was surprisingly routine throughout the British Empire. This article considers the implications of this case and some of the wider history of banishment in the empire. 相似文献
996.
997.
Jan Kluge 《Journal of regional science》2018,58(1):204-223
This paper examines the extent to which sectoral diversification can act as an insurance mechanism against fluctuations in regional gross value‐added growth rates. Portfolio theory is applied to the growth‐instability properties of German districts. Furthermore, a comprehensive diversification measure is defined. Stochastic Frontier Analysis is deployed in order to estimate whether diversification allows regions to achieve more efficient growth‐instability combinations. The results confirm that diversification does generate such effects. Spatial interactions do also play a role: The effects are less pronounced for regions whose economic performance is mainly driven by the surrounding regions. 相似文献
998.
999.
Jane Humphris Michael F. Charlton Jake Keen Lee Sauder Fareed Alshishani 《Journal of Field Archaeology》2018,43(5):399-416
The Royal City of Meroe, ca. 200?km north of Khartoum in the modern-day Republic of the Sudan, was an ancient capital of the Kingdom of Kush. From the 3rd century b.c. to the 4th century a.d., Kushite rulers controlled significant territory from the banks of the Nile at Meroe, in part through their ability to ensure the production of significant quantities of iron. The extensive archaeological remains of Meroitic iron production have been investigated over decades, and recently a series of experimental iron smelts in a replica Meroitic furnace has shed new light on the archaeometallurgical evidence. The data generated during the smelting campaigns has provided an understanding of the type of iron ore used, the construction and operating parameters of the furnace, and the workshop space created by the ancient iron smelters during the later and post-Meroitic times. 相似文献
1000.