全文获取类型
收费全文 | 888篇 |
免费 | 62篇 |
出版年
2023年 | 12篇 |
2021年 | 7篇 |
2020年 | 19篇 |
2019年 | 36篇 |
2018年 | 39篇 |
2017年 | 45篇 |
2016年 | 56篇 |
2015年 | 32篇 |
2014年 | 27篇 |
2013年 | 213篇 |
2012年 | 35篇 |
2011年 | 36篇 |
2010年 | 30篇 |
2009年 | 32篇 |
2008年 | 17篇 |
2007年 | 20篇 |
2006年 | 19篇 |
2005年 | 16篇 |
2004年 | 19篇 |
2003年 | 14篇 |
2002年 | 12篇 |
2001年 | 15篇 |
2000年 | 8篇 |
1999年 | 9篇 |
1998年 | 16篇 |
1997年 | 7篇 |
1996年 | 5篇 |
1995年 | 5篇 |
1994年 | 8篇 |
1993年 | 14篇 |
1992年 | 16篇 |
1991年 | 4篇 |
1988年 | 4篇 |
1987年 | 3篇 |
1986年 | 8篇 |
1985年 | 8篇 |
1984年 | 5篇 |
1983年 | 13篇 |
1982年 | 3篇 |
1981年 | 7篇 |
1980年 | 3篇 |
1979年 | 8篇 |
1978年 | 3篇 |
1977年 | 7篇 |
1976年 | 6篇 |
1972年 | 8篇 |
1971年 | 4篇 |
1970年 | 2篇 |
1969年 | 3篇 |
1968年 | 3篇 |
排序方式: 共有950条查询结果,搜索用时 15 毫秒
851.
Megan Lickliter-Mundon Frank Cantelas Wendy Coble Jeremy Kinney Jennifer McKinnon Jeffrey Meyer Andrew Pietruszka Brad Pilgrim James R. Pruitt Hans Van Tilburg 《Journal of Maritime Archaeology》2018,13(2):167-189
American-produced B-29 Superfortress bomber aircraft flew missions against Imperial Japan in the Pacific Theater from air bases in the Mariana Islands from November 1944 until the end of WWII. Mechanical failures forced many B-29s into the ocean surrounding Saipan and Tinian. Terrestrial wreckage of these aircraft has been located in the Pacific region, but no losses in deep water were located until 2016, when a NOAA exploration cruise investigated sonar targets in the Saipan Channel, between Saipan and Tinian. Disarticulated wreckage from a B-29 was located at 370 m over a large area of the seabed. Telepresence-enabled, non-invasive exploration from NOAA Ship Okeanos Explorer allowed scientists on shore to view live streaming video and to work collaboratively to guide the investigation. Experts in aviation archaeology, corrosion studies, WWII history, forensic studies, marine biology, and oceanography participated in the survey using an ROV, highlighting components which could lead to possible identification of the B-29 in situ, and conducting an environmental characterization of the site. This deep-water aircraft site exemplifies multiple-stakeholder driven research in aviation archaeology and highlights several issues in the value of individual site identification. 相似文献
852.
853.
Andrew O'neil 《Australian journal of political science》2007,42(3):471-487
Given the occasionally vexatious nature of academic discussion in Australia on the subject of terrorism, it is surprising that so little has been written regarding Australia's approach to countering terrorism. This gap in the literature stands in marked contrast to the highly charged debate over the direction of terrorism studies in this country. In seeking to fill this lacuna, the article critically examines the three essential pillars of Australia's counter-terrorism strategy that have evolved since 2001: domestic legislation, intelligence, and regional assistance and engagement. I argue that Australia's counter-terrorist strategy exhibits greater cohesion than many of the critics have been willing to acknowledge. However, I also argue that there remain significant flaws in the Howard government's approach, particularly as it relates to a lack of transparency in justifying new anti-terrorism legislation and Australia's unswerving support for a US global counter-terrorism strategy that has lost its way since the invasion of Iraq in 2003. 相似文献
854.
Andrew M. Wilson PhD 《Domes : digest of Middle East studies》2014,23(2):215-234
The border proposal of David Makovsky, who, served as an advisor to Martin Indyk during the recent Israeli‐Palestinian peace talks, is analyzed from the standpoint of viable contiguity — the degree to which the border, particularly where there is Israeli annexation of settlement blocs, offers provision for access, living space, and transportation infrastructure for the Palestinian population in adjacent areas. While at some locales his proposed border improves contiguity for Palestinians compared with the current situation unilaterally imposed by Israel, more attention needs to be given to the ways it would adversely affect the quality of life of the Palestinian population in the cities and villages adjacent to those settlement blocs. This leads to the suggestion that a more comprehensive solution to border issues will feature the establishment of joint economic zones and binational administrative authorities, which can manage the entanglement of roads and populations in ways that will maximize the potential for economic development. 相似文献
855.
Adolfo F. Gil Gustavo A. Neme Andrew Ugan Robert H. Tykot 《International Journal of Osteoarchaeology》2014,24(1):31-41
Stable oxygen isotopes (δ18O) from human bone apatite from central western Argentina (30º–37ºS latitude) were analysed to understand changes in human residential mobility during the Late Holocene. This region contains evidence for the use of domesticated plants over the last 2000 years (Zea mays, Cucurbita sp. and Phaseolus sp., among others), and previous models of prehistoric occupation have suggested a distinct change in mobility and population movement associated with their incorporation. The importance of these domesticates also seems to have varied geographically, being greater in the northern part of the region and declining as one moves south toward the limit with Patagonia. Expectations about patterns of residential mobility have varied accordingly. To better evaluate these models, we analysed carbonate δ18O from the bone apatite of 71 individuals with radiocarbon dates spanning the last 6000 years. Given the existing evidence, we expected to see temporal and geographic differences in their oxygen isotope values associated with changes in residential mobility and the incorporation of different sources of drinking water available within the region. These expectations were not met. Significant variations were seen across all samples compared, both temporal and geographic, with no discernible differences among them. The data suggest that populations throughout the area were all highly mobile, and that this did not change with the incorporation of domesticates. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
856.
857.
858.
859.
Radical democrats and geographers have argued that democracy requires a vibrant contestatory politics to challenge the contemporary “post‐political” conjuncture. Despite suggestions of post‐political processes in Aotearoa New Zealand, there are signs of a more vibrant politics. In 2010 an environmental campaign called “2Precious2Mine” captured the national geographic imaginary. Drawing on this example, we argue that although a space was opened for a vibrant contestatory politics, its effects were paradoxical. The campaign both reinforced the hegemonic narratives of neoliberal (post)colonial Aotearoa New Zealand, and simultaneously produced moments that challenged this apparent post‐politicising trajectory. While we argue that such frameworks are useful, there is a risk that without cognisance of the situated nature of politics and closure, they both lose their political and academic explanatory purchase. Post‐politics becomes at risk of constructing that which it seeks to describe, while radical democracy ends up falling short of its aims. 相似文献
860.
Andrew D. Buck 《Mediterranean Historical Review》2015,30(2):107-124
In the summer of 1158, Manuel I Komnenos, emperor of Byzantium, brought a large force into Cilicia to quell Armenian resistance and to seek retribution for an attack launched on the Byzantine island of Cyprus by Renaud of Châtillon, prince of Antioch. In haste, Renaud came to the city of Mamistra, and performed a humiliating penance before agreeing to imperial overlordship. Historians have long conceived of this act as one forced on Renaud by Manuel and King Baldwin III of Jerusalem, and as marking the creation of a political condominium, which divided Antioch between these two rulers. This article seeks to challenge the established opinion by drawing attention to the diplomatic skill demonstrated by the Antiochenes, and the independence with which they pursued and secured close and favourable ties to Byzantium. 相似文献