全文获取类型
收费全文 | 2155篇 |
免费 | 64篇 |
专业分类
各国政治 | 169篇 |
工人农民 | 108篇 |
世界政治 | 127篇 |
外交国际关系 | 91篇 |
法律 | 1385篇 |
中国政治 | 23篇 |
政治理论 | 300篇 |
综合类 | 16篇 |
出版年
2023年 | 12篇 |
2022年 | 13篇 |
2020年 | 47篇 |
2019年 | 42篇 |
2018年 | 67篇 |
2017年 | 86篇 |
2016年 | 82篇 |
2015年 | 39篇 |
2014年 | 50篇 |
2013年 | 252篇 |
2012年 | 60篇 |
2011年 | 71篇 |
2010年 | 55篇 |
2009年 | 57篇 |
2008年 | 65篇 |
2007年 | 61篇 |
2006年 | 57篇 |
2005年 | 63篇 |
2004年 | 61篇 |
2003年 | 66篇 |
2002年 | 46篇 |
2001年 | 73篇 |
2000年 | 53篇 |
1999年 | 50篇 |
1998年 | 20篇 |
1997年 | 19篇 |
1996年 | 21篇 |
1995年 | 12篇 |
1994年 | 19篇 |
1993年 | 21篇 |
1992年 | 32篇 |
1991年 | 36篇 |
1990年 | 39篇 |
1989年 | 42篇 |
1988年 | 36篇 |
1987年 | 27篇 |
1986年 | 38篇 |
1985年 | 28篇 |
1984年 | 21篇 |
1983年 | 18篇 |
1982年 | 12篇 |
1981年 | 18篇 |
1980年 | 12篇 |
1979年 | 19篇 |
1978年 | 21篇 |
1977年 | 18篇 |
1971年 | 18篇 |
1970年 | 17篇 |
1968年 | 19篇 |
1967年 | 12篇 |
排序方式: 共有2219条查询结果,搜索用时 15 毫秒
951.
952.
Garcia Y Garma IO 《Estudios demográficos y urbanos》1989,4(1):53-74, 215-6
Data from 6 fertility surveys conducted in Mexico between 1969-87 were used to compare rural and urban fertility and to determine whether a significant level of contraceptive usage could be achieved in rural areas despite their lack of socioeconomic development. Age-specific marital fertility rates were calculated for the 4 national-level and 2 rural fertility surveys. The index of fertility control developed by Coale and Trussel was calculated for rural, urban, and all areas. The marital total fertility rate in rural areas declined from 10.6 in 1970 to 7.4 in 1982, a decline of 2.5% annually. From 1982-87 the annual rate of decline in rural fertility slowed to 1.6%, reaching 6.8 children in 1987. The urban marital total fertility rate declined from 7.72 in 1976 to 5.03 in 1987, while the marital total fertility rate for Mexico as a whole declined from 9.04 in 1976 to 5.85 in 1987. The indices of fertility control showed slowly increasing use of contraception in rural areas starting from the very low level of 1969. The urban index of fertility control showed some contraceptive use for all age groups in all surveys. The increases in contraceptive usage were considerable in rural areas from 1976-82 and much less marked in urban areas. From 1982-87 the inverse was observed and the fertility decline in urban areas was more marked. The condition of natural fertility found in rural areas in 1969 subsequently disappeared. Over time, fertility decline and use of contraception have intensified. Contraception is widely practiced in urban areas and is continuing to become more prevalent. The rural fertility decline in 1976-82 suggests that at least sometimes increases in fertility control are more important in rural areas than in urban areas. The theory of modernization, which holds that fertility decline in developed countries is attributable to factors associated with the process of modernization, thus comes into question. However, it is probable that a sustained fertility decline in the most depressed rural areas will be achieved only with substantial socioeconomic change. 相似文献
953.
954.
The Proper Purpose Rule as a Constraint on Directors’ Autonomy – Eclairs Group Limited v JKX Oil & Gas plc
下载免费PDF全文
![点击此处可从《The Modern law review》网站下载免费的PDF全文](/ch/ext_images/free.gif)
The recent case of Eclairs Group Limited v JKX Oil & Gas plc highlights the pressures faced by company directors in change of control situations, in which they may be tempted to take action to prevent or discourage such change. The Supreme Court decision provides important clarity on the scope of the proper purpose rule in these (and other) situations. We explore the implications of different judicial interpretations of the proper purpose rule for the autonomy of directors in their decision‐making. We do this by focusing on the scope of the proper purpose rule, whether a subjective or objective test is employed in the application of the rule and the test for causation where a director is motivated by mixed purposes. 相似文献
955.
956.
Netherlands International Law Review - Around the world many survivors of so-called ‘historical’ abuses persist in seeking truth and justice decades after rights violations have been... 相似文献
957.
Efrén O. Pérez 《Political Behavior》2016,38(3):603-634
Growing evidence shows that mass opinion varies by interview language, yet modest theory exists to explain this result. I propose a framework where language impacts survey response by making some political concepts more mentally accessible. I claim that concepts vary by how associated they are with certain languages, which means people are more likely to acquire a construct when it is tied to the tongue one speaks. Hence, recalling concepts from memory should be easier when the language a construct is linked to matches the tongue one interviews in, thereby intensifying people’s opinions. I test my theory by manipulating the interview language in two U.S. surveys of English/Spanish bilingual Latino adults. I generally find that language influences the accessibility of concepts. For example, subjects report higher opinion levels for concepts that are tied more to their interview language, such as American identity among English interviewees. Subjects who interview in English are also less likely to refuse completing items measuring knowledge about U.S. politics, and more likely to answer them quickly. Items reflecting constructs that are highly labile (e.g. anti-Obama affect) or very crystallized (e.g., partisanship) do not display these patterns. I then rule out that language effects are mostly mediated by a heightened sense of anxiety, anger, pride or efficacy that emerges when bilingual subjects interview in one of their languages. 相似文献
958.
959.
960.