全文获取类型
收费全文 | 1537篇 |
免费 | 312篇 |
出版年
2023年 | 7篇 |
2021年 | 16篇 |
2020年 | 22篇 |
2019年 | 107篇 |
2018年 | 89篇 |
2017年 | 103篇 |
2016年 | 135篇 |
2015年 | 96篇 |
2014年 | 106篇 |
2013年 | 328篇 |
2012年 | 100篇 |
2011年 | 104篇 |
2010年 | 75篇 |
2009年 | 62篇 |
2008年 | 74篇 |
2007年 | 70篇 |
2006年 | 46篇 |
2005年 | 24篇 |
2004年 | 41篇 |
2003年 | 32篇 |
2002年 | 21篇 |
2001年 | 21篇 |
2000年 | 30篇 |
1999年 | 7篇 |
1998年 | 15篇 |
1997年 | 20篇 |
1996年 | 12篇 |
1995年 | 14篇 |
1994年 | 11篇 |
1993年 | 4篇 |
1992年 | 5篇 |
1991年 | 3篇 |
1989年 | 2篇 |
1987年 | 6篇 |
1986年 | 3篇 |
1985年 | 3篇 |
1982年 | 5篇 |
1981年 | 1篇 |
1980年 | 3篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 6篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1974年 | 2篇 |
1971年 | 2篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1968年 | 1篇 |
1951年 | 1篇 |
排序方式: 共有1849条查询结果,搜索用时 15 毫秒
111.
Florence Valle‐Dubois Ruth Dassonneville Jean‐Franois Godbout 《Nations & Nationalism》2020,26(2):344-365
Can age, period and cohort effects help explain support for Quebec sovereignty? Previous work on this question has focused mostly on the effects of age and cohort. We contribute to this debate by adding a period perspective. As such, our study is the first to investigate the impact of age, cohort and period effects in a single study of opinion towards sovereignty in Quebec. We take advantage of an original dataset that includes survey data collected between 1985 and 2012. We use these data to examine the impact of age, birth year and survey year on support for this constitutional option among francophone Quebeckers. Our results are in line with previous work: we show that younger Quebeckers are more likely to support sovereignty, and that some cohorts – namely, respondents born between 1945 and 1959 – are also more likely to favour this option. Perhaps more surprisingly, we find that specific events are comparatively the most important factor to explain fluctuations in Quebeckers' attitudes towards sovereignty. 相似文献
112.
Anna McLauchlan 《Scottish Geographical Journal》2017,133(2):83-100
Swimming is a popular form of recreation and exercise in the UK and US. Swimming can take place outdoors but, particularly in the UK, largely takes place in designated indoor pools. Existing research tends to focus on ‘public’ or ‘municipal’ pools leaving broader spatial geographies of swimming pool provision under explored. In response to concern about swimming pool closures, this paper draws from extensive archival research into all swimming pools in the City of Glasgow, Scotland, since the first opened in 1804. Formal and informal programmes of pool building and closure were revealed. Rather than decreasing, public provision has remained constant for the last 100?years but become progressively more spread out in relation to the city’s changing size. Broadening exploration beyond the ‘public’ category exposed a vast drop in school pool numbers around the year 2000 due to a Private Finance Initiative project that consolidated the secondary school estate and outsourced school building management. The lessons: researching all types of swimming pool through time greatly enriches understandings of the changing meaning and extent of public service provision. 相似文献
113.
Khirbat al‐Mana‘iyya: an early Islamic‐period copper‐smelting site in south‐eastern Wadi ‘Araba,Jordan
下载免费PDF全文
![点击此处可从《Arabian Archaeology and Epigraphy》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Ian W.N. Jones Erez Ben‐Yosef Brita Lorentzen Mohammad Najjar Thomas E. Levy 《Arabian Archaeology and Epigraphy》2017,28(2):297-314
Recent excavations in south‐eastern Wadi ‘Araba in Jordan have revealed the first early Islamic‐period copper‐smelting site known in the eastern side of the valley, which extends south of the Dead Sea to the Gulf of ‘Aqaba. Five test pits were excavated in 2012 at Khirbat al–Mana‘iyya, a prominent copper‐smelting camp in south‐eastern Wadi ‘Araba, Jordan. The results of these excavations demonstrate that the site was primarily active in the seventh–ninth century AD. Its distance from the copper sources of south‐west ‘Araba suggests that its location was chosen based on proximity to wood and water resources, rather than copper ore deposits. The discovery that the site dates to the early Islamic period has implications for previous and future work in south‐east ‘Araba. In particular, it challenges the common—until now—view of the region as virtually devoid of settlement during this period. 相似文献
114.
115.
116.
117.
Neolithic nomadism in south‐east Arabia — strontium and oxygen isotope ratios in human tooth enamel from al‐Buhais 18 and Umm al‐Quwain 2 in the Emirates of Sharjah and Umm al‐Quwain (UAE)
下载免费PDF全文
![点击此处可从《Arabian Archaeology and Epigraphy》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Human skeletal remains from the Neolithic sites BHS18 in the interior of the Sharjah Emirate and the Neolithic shell midden UAQ2 (Umm al‐Quwain) on the coast of the Persian Gulf (United Arab Emirates, UAE) were analysed for their isotope ratios of strontium (87Sr/86Sr) and oxygen (18O/16O). The results are not in agreement with earlier assumptions about a Neolithic nomadism between inland regions and the south‐eastern coast of the Persian Gulf. Existing evidence of nomadic movements of the people from BHS18 most possibly refers to transhumance within the mountains in the hinterland. The strontium isotope measurements on human skeletons from UAQ2 on the contrary indicate uninterrupted residence of this population on the coast. Nevertheless, evidence was found of individual mobility between inland regions and the coast. 相似文献
118.
119.
120.