全文获取类型
收费全文 | 9672篇 |
免费 | 638篇 |
专业分类
各国政治 | 837篇 |
工人农民 | 413篇 |
世界政治 | 706篇 |
外交国际关系 | 381篇 |
法律 | 5680篇 |
中国共产党 | 1篇 |
中国政治 | 98篇 |
政治理论 | 2105篇 |
综合类 | 89篇 |
出版年
2021年 | 69篇 |
2020年 | 123篇 |
2019年 | 267篇 |
2018年 | 234篇 |
2017年 | 303篇 |
2016年 | 326篇 |
2015年 | 255篇 |
2014年 | 271篇 |
2013年 | 1347篇 |
2012年 | 265篇 |
2011年 | 273篇 |
2010年 | 265篇 |
2009年 | 207篇 |
2008年 | 273篇 |
2007年 | 235篇 |
2006年 | 239篇 |
2005年 | 193篇 |
2004年 | 206篇 |
2003年 | 207篇 |
2002年 | 168篇 |
2001年 | 349篇 |
2000年 | 299篇 |
1999年 | 283篇 |
1998年 | 140篇 |
1997年 | 96篇 |
1996年 | 87篇 |
1995年 | 85篇 |
1994年 | 90篇 |
1993年 | 86篇 |
1992年 | 143篇 |
1991年 | 172篇 |
1990年 | 184篇 |
1989年 | 164篇 |
1988年 | 178篇 |
1987年 | 181篇 |
1986年 | 172篇 |
1985年 | 161篇 |
1984年 | 143篇 |
1983年 | 134篇 |
1982年 | 91篇 |
1981年 | 105篇 |
1980年 | 77篇 |
1979年 | 137篇 |
1978年 | 97篇 |
1977年 | 77篇 |
1976年 | 58篇 |
1975年 | 81篇 |
1974年 | 88篇 |
1973年 | 84篇 |
1971年 | 60篇 |
排序方式: 共有10000条查询结果,搜索用时 8 毫秒
251.
Adrienne Davidson Matthew Lesch Maxime Héroux-Legault Tanya Whyte Zain Asaf Karol Czuba 《Regional & Federal Studies》2017,27(2):103-125
The maintenance of welfare state policies requires citizen support for the provision of a social safety net through taxation and redistribution. Research has shown that a diverse political polity presents a risk to the welfare state; however, Canada bucks the trend and does not see citizen support for economic redistribution decline in response to immigration-based population diversity. Using Canada as our case, we argue that scholars of welfare state politics and redistribution should turn their attention to other sources of population heterogeneity in an effort to better understand how different political cleavages affect citizens’ redistributive preferences. We use an online experimental survey to manipulate the in-group identity of 500 Canadians. The survey enables respondents to identify with other in-group identities along regional, linguistic, income-group, and urban/rural characteristics. Our results find that while Canadians do have a strong baseline preference for redistributive behaviour, regional and linguistic cleavages moderate this outcome. 相似文献
252.
A Concurrent Analysis of Three Institutions that Transform Health Technology‐Based Ventures: Economic Policy,Capital Investment,and Market Approval 下载免费PDF全文
Drawing on institutional theory, this article articulates qualitative insights from a program of research on Canadian health technology‐based ventures to examine the rules that characterize economic policy, capital investment, and regulatory approval as well as the way these institutions enable and constrain the development of ventures at an early stage. Our findings clarify how economic policy integrates these ventures into the entrepreneurial domain, how capital investment configures them for economic value extraction, and how regulatory approval fully releases their market value. These findings help to revisit current policy modernization initiatives by calling attention to the convergence among the three institutions. Rather than operating solely as a source of constraints, these institutions provide a highly integrated market‐oriented space for health technology‐based entrepreneurial activities to unfold. 相似文献
253.
Matthew Woessner Kathleen H. Winters Kyle C. Kopko 《Journal of Political Science Education》2017,13(2):225-238
Undergraduate public law courses often attract students with competing expectations. Some students enroll in these courses to prepare for law school, while others enroll in the courses to gain a broader understanding of courts in the American system of government. These differing student constituencies can create a dilemma for instructors. A course designed to cater to students with a general interest in the judiciary may not afford prelaw students with an appreciation for the demands of the legal profession. Conversely, a course narrowly tailored toward prelaw students risks alienating the majority of students for whom this class may be their only look at the judiciary. As a means to promote pedagogical balance and to appeal to varied student constituencies, we profile five public law simulations in this article that engage students in active learning and promote a greater understanding of law and courts. 相似文献
254.
Regulatory reforms to public infrastructure services across European Union (EU) countries were aimed at increasing consumer welfare by introducing competition and choice into service markets. However, empirical evaluations have questioned whether these reforms have benefitted all consumers, suggesting that vulnerable groups of service users (especially those with lower levels of formal education), might be locked into poorly performing services. We assess the relationship between the level of competition in electricity and fixed telephony markets in EU countries and evaluate the affordability of these services for different socio‐educational layers. Our findings show that – although in countries where there is a relatively high frequency of switching, inequalities between socio‐educational groups are smaller and eventually disappear – competition as such does not play a part. These results suggest that demand‐side regulation that successfully enables consumer switching has the potential to equalize social welfare, thereby reflecting a possible convergence of regulatory instruments and the central aims of the welfare state in this context. 相似文献
255.
Fred H. Lawson Matteo Legrenzi 《The international spectator : a quarterly journal of the Istituto affari internazionali》2017,52(1):76-87
Why the uprisings that broke out across the Middle East and North Africa in 2010-11 ousted the leaders of republics but left monarchies largely intact remains puzzling. One promising explanation for the resilience of monarchical regimes argues that monarchs exercise repression in a comparatively restrained and largely effective fashion. Proponents of this theory tend to conflate two crucial causal factors: the level of state coercion exercised against opposition activists and the degree of indiscriminateness with which coercion is deployed. By treating these variables as analytically distinct, a more compelling explanation for monarchical resilience can be advanced. The advantages of the revised argument are illustrated by revisiting the divergent trajectories of the uprisings in Bahrain, Oman, Saudi Arabia and Kuwait. 相似文献
256.
257.
This article examines the patterns and changes in public perceptions of domestic income inequality in Hong Kong in the past two decades and explains individual variations in these perceptions. It found that the perceived seriousness of income disparities had been persistently high, while the perceived unjustness of income disparities showed a fluctuating trend. Our findings lent partial support to the structural position thesis that the privileged groups are less likely than the underprivileged groups to consider existing income disparities to be serious and unjust. Nonetheless, the popular understanding of poverty is still biased towards ‘individual’ explanations, and this perhaps explains why the government is less willing to tackle the economic and political foundations of poverty in Hong Kong. 相似文献
258.
259.
Ellen H.Palanca 《东南亚纵横》2001,(11):24-24
自从1979年中国实行改革开放以来,菲中两国的经济关系持续发展。菲律宾对华贸易要比它与世界其他国家的贸易增长得更快。近几年来,我们可以看到,由于菲律宾比素对人民币的比值相对较低,菲律宾对华出口骤增。尽管中国在菲律宾外贸总额中所占的份额已经由80年代的2%增长到现在的4%,但总的来说仍然偏少。 当前的菲中贸易结构以工业制成品为主体。正如其整体贸易结构一样,菲律宾的对华出口贸易以半成品为主。中国的工业制品则包含更多的制成品——电子产品、金属制品和建筑材料。近几年,在中国对菲律宾出口中消费品、食品及食… 相似文献
260.
The activity of calcium pumping adenosine triphosphatase (Ca2+-ATPase) in cardiac sarcoplasmic reticulum plays a pivotal role in myocardiac contraction-relaxation. The Ca2+-ATPase activity is controlled by phosphorylation and dephosphorylation of a sarcoplasmic reticulum protein "phospholamban" in response to neurotransmitters and drugs. To clarify the role of Ca2+-ATPase in the development of cardiac rigor mortis, we examined the changes of cardiac rigidity and cardiac sarcoplasmic reticulum Ca2+-ATPase activity up to 5 h after the decapitation of rats. Fifteen minutes after decapitation, the rats showed a cardiac rigidity on left ventricles. After 30 min, rigidity was obvious over the whole heart. After 1 h, the rigidity reached a high degree which was maintained for the rest of the observation period. On the other hand, the Ca2+-ATPase activity controlled by phosphorylation and dephosphorylation of phospholamban did not change for the whole observation period (5 h). Another Ca2+-ATPase activity representing the total amount of Ca2+-ATPase in sarcoplasmic reticulum gradually decreased. The data suggest that no significant phosphorylation or dephosphorylation of phospholamban occurs for a short time, at least for 5 h, after death and that the Ca2+-ATPase tends to relax the myocardium against the development of cardiac rigor mortis. 相似文献