全文获取类型
收费全文 | 353篇 |
免费 | 5篇 |
专业分类
358篇 |
出版年
2024年 | 2篇 |
2023年 | 3篇 |
2021年 | 2篇 |
2020年 | 15篇 |
2019年 | 18篇 |
2018年 | 26篇 |
2017年 | 22篇 |
2016年 | 14篇 |
2015年 | 20篇 |
2014年 | 15篇 |
2013年 | 45篇 |
2012年 | 29篇 |
2011年 | 20篇 |
2010年 | 13篇 |
2009年 | 12篇 |
2008年 | 15篇 |
2007年 | 15篇 |
2006年 | 19篇 |
2005年 | 9篇 |
2004年 | 7篇 |
2003年 | 9篇 |
2002年 | 5篇 |
2001年 | 6篇 |
2000年 | 3篇 |
1999年 | 1篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1995年 | 3篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1980年 | 1篇 |
排序方式: 共有358条查询结果,搜索用时 15 毫秒
41.
历史研究需要进行科学分期,由于所研究的对象不同,因而分期的标准也不尽相同。20世纪中日俄(苏)三国关系史可分为7个时期。1900-1917年为两强凌-弱时期;1917-1931年为三国关系初次变化时期;1931-1945年为战争笼罩三国时期;1945-1949年为三国关系特殊时期;1949-1960年为三国关系再次变化时期;1960-1972年为敌友关系相互转变时期;1972-1991年为三国关系终趋正常时期。 相似文献
42.
关于中日钓鱼岛争端中"美国因素"的历史考察 总被引:4,自引:0,他引:4
郭永虎 《中国边疆史地研究》2005,15(4):111-117
文章对中日钓鱼岛争端中的“美国因素”进行了系统考察。二战后美国的日本政策与钓鱼岛问题的产生、发展及变化有着密切联系。在冷战的国际背景下,美国政府通过托管琉球与“第27号令”将中国钓鱼岛纳入其托管之下。20世纪70年代初美国又将钓鱼岛的“施政权”作为冲绳的一部分“归还”给日本,为中日钓鱼岛争端打下“楔子”。冷战结束以来,美国政府在钓鱼岛主权归属上由“模糊中立”到当今小布什政府的“小心介入”,反映了美国政府在钓鱼岛问题立场上的变化。 相似文献
43.
Alison Mountz 《Political Geography》2011,30(3):118-128
From offshore border enforcement to detention centers on remote islands, struggles over human smuggling, detention, asylum, and associated policies play out along the geographical margins of the nation-state. In this paper, I argue that islands are part of a broader enforcement archipelago of detention, a tactic of migration control. Island enforcement practices deter, detain, and deflect migrants from the shores of sovereign territory. Islands thus function as key sites of territorial struggle where nation-states use distance, invisibility, and sub-national jurisdictional status (Baldacchino & Milne, 2006) to operationalize Ong’s (2006) ‘graduated zones of sovereignty’. In sites that introduce ambiguity into migrants’ legal status, state and non-state actors negotiate and illuminate geopolitical arrangements that structure mobility. This research traces patterns among distant and distinct locations through examination of sovereign and biopolitical powers that haunt asylum-seekers detained on islands. Offshore detention, in turn, fuels spatial strategies employed in onshore detention practices internal to sovereign territory. 相似文献
44.
Torben C. Rick Brendan J. Culleton Carley B. Smith John R. Johnson Douglas J. Kennett 《Journal of archaeological science》2011
Stable carbon (δ13C) and nitrogen (δ15N) isotope analyses of dog (Canis familiaris), island fox (Urocyon littoralis), and human bone collagen from CA-SRI-2 (AD 130–1830) on Santa Rosa Island, California provide a proxy of diet and the relationships between humans and these animals. Carbon isotopic signatures indicate that Native Americans and their dogs at CA-SRI-2 subsisted almost exclusively on marine resources, while the island fox ate primarily terrestrial foods. Nitrogen isotopes and archaeofaunal remains indicate that humans and dogs also ate higher trophic level foods, including finfishes, marine mammals, and seabirds with smaller amounts of shellfish. The CA-SRI-2 island foxes appear to have eaten higher amounts of terrestrial foods, similar to the diets observed in modern fox populations. These data generally confirm the commensal relationship assumed to exist between domesticated dogs and people, but the carbon isotopic composition of dogs is enriched ∼2‰ compared to humans. We hypothesize that the difference in carbon isotopes between dogs and humans may have resulted from a higher consumption of C3 plants with lower δ13C values by humans, or less likely from the ingestion by dogs of significant amounts of bone collagen, which is enriched by ∼4‰ over associated muscle. 相似文献
45.
Jonathan Kay Kamakawiwo'ole Osorio 《Oceania; a journal devoted to the study of the native peoples of Australia, New Guinea, and the Islands of the Pacific》2011,81(3):297-301
ABSTRACT Despite the enormous efforts made to civilize the Hawaiian, the Maori, the Samoan, and Fijian, Islanders have not forgotten all of their stories and in fact many Pacific peoples are in a position to recover much of the knowledge that sustained communities for thousands of years. There is hope in what we have done to reclaim our heritages—finding our voices in our languages, stories, and songs, our perspectives in our arts and literatures, our muscle and will in our own political advocacy and pursuit of our rights in courts and international arenas. There is need, however, for a new vision that reunites human beings with all of their relations in the world, a vision necessary to sustain a very difficult struggle. 相似文献
46.
Karl Bruno 《Scandinavian journal of history》2013,38(5):624-645
The engagement of Swedish industry in the Liberian American–Swedish Minerals Company (LAMCO), which mined iron in Liberia between 1963 and 1989, was the largest Swedish commercial investment in Africa during the Cold War. In this paper I investigate how political and administrative actors of the Swedish government conceptualized the link between private and public interests in the context of LAMCO’s operations, and how this shaped Swedish government policy towards the company and Liberia. I identify two phases: a phase of almost unanimous political support for LAMCO and close Swedish–Liberian relations from ca. 1955 to 1965, and a more fragmented phase following 1965, during which LAMCO was increasingly understood as a political liability. My findings show how business interests could figure into Swedish foreign policy during the Cold War, highlighting the coherence with which Swedish industry and government acted in relation to the commercial interests in Liberia before ca. 1965, but also the lack of coherence – between government and industry as well as within the state apparatus – that followed the turn to a more activist policy after the mid-1960s. 相似文献
47.
A Spanish Man‐o‐War in New Zealand? The 1864 wreck of Grafton and its lessons for pre‐Cook shipwreck claims
下载免费PDF全文

Peter Petchey Rachael Egerton William Boyd 《International Journal of Nautical Archaeology》2015,44(2):362-370
This paper considers the 1864 wreck of Grafton in the Auckland Islands, and its implications for wreck analysis and pre‐Cook exploration claims. The captain of Grafton, Thomas Musgrave, stated that the schooner was built from the wreck of a Spanish man‐o‐war, and archaeological analysis of the wreck found that the timbers are a tropical South American species, and had possibly been reused. The implications of this are clear; it is possible that timbers that originated in pre‐Cook (1769) ships lie in New Zealand, but without a full understanding of the historical and archaeological context of any such timbers, including their reuse in later ships, it is not possible to claim proof of pre‐Cook European exploration of New Zealand. 相似文献
48.
Plant microfossil analysis was carried out on 12 soil samples from a variety of landscape features at three locations (100–250 m a.s.l.) along a 950 m transect at Te Niu, Easter Island. Pollen and phytolith assemblages were dominated by palms and ground ferns, and suggested disturbed forest. We identified pollen of bottle gourd (Lagenaria siceraria) and starch grains of the common yam (Dioscorea alata), sweet potato (Ipomoea batatas) and taro (Colocasia esculenta). The data suggest a mixed-crop, dryland production system at Te Niu dominated by yam and sweet potato, and supplemented by taro and bottle gourd. The data provide direct evidence of crop type and range, supporting the indirect evidence (topographic and landscape features, field and historical research, comparisons with elsewhere in the Pacific) that much of the rock covered landscape of Easter Island was used for intensive horticulture. 相似文献
49.
We explore diet and mobility in Middle Archaic Florida using human burials and faunal remains from the Harris Creek archaeological site (8Vo24) on Tick Island. We conducted stable carbon and oxygen isotopic (δ13C, δ18O) analyses of 50 human enamel samples and strontium isotopic (87Sr/86Sr) analysis of a subset of 10. Most individuals (46/50) subsisted on local freshwater and terrestrial resources, with relatively depleted δ13C values (C3) and δ18O values matching those of central and north Florida water resources within the St. Johns River valley. Eight of 10 burials have local, within valley 87Sr/86Sr values. Two human burials yield marine δ13C and 87Sr/86Sr values, which we interpret as evidence for across valley movement from the coast. Another two individuals show depleted δ18O values, likely obtained from northern rivers. We also identified potential food resources and non-local foods from the Harris Creek faunal assemblage. We found six species with estuarine and marine habitat preferences; two of which, whelk and quahog, indicate that people of Harris Creek traveled to or traded with coastal areas. 相似文献
50.
We report analysis of ancient mitochondrial DNA sequences from nine archaeological specimens (8 femura and 1 incissor) of Rattus exulans excavated from Anakena Beach Dune on Rapa Nui. Sequence of a 239-base-pair fragment of the hypervariable mitochondrial control region reveals a single mitochondrial DNA (mtDNA) sequence of all samples corresponding to the R9 haplotype prevalent in East Polynesia. This suggests a single or very limited introduction of Rattus exulans to the island. Rapa Nui, like other remote islands of Polynesia, remained effectively isolated following colonization. 相似文献