全文获取类型
收费全文 | 531篇 |
免费 | 9篇 |
专业分类
各国政治 | 30篇 |
工人农民 | 19篇 |
世界政治 | 40篇 |
外交国际关系 | 34篇 |
法律 | 243篇 |
中国政治 | 3篇 |
政治理论 | 149篇 |
综合类 | 22篇 |
出版年
2020年 | 6篇 |
2019年 | 5篇 |
2018年 | 9篇 |
2017年 | 13篇 |
2016年 | 16篇 |
2015年 | 8篇 |
2014年 | 10篇 |
2013年 | 70篇 |
2012年 | 18篇 |
2011年 | 11篇 |
2010年 | 19篇 |
2009年 | 5篇 |
2008年 | 15篇 |
2007年 | 7篇 |
2006年 | 11篇 |
2005年 | 11篇 |
2004年 | 16篇 |
2003年 | 12篇 |
2002年 | 22篇 |
2001年 | 11篇 |
2000年 | 12篇 |
1999年 | 11篇 |
1998年 | 11篇 |
1997年 | 17篇 |
1996年 | 7篇 |
1995年 | 9篇 |
1994年 | 12篇 |
1992年 | 8篇 |
1991年 | 9篇 |
1990年 | 9篇 |
1989年 | 16篇 |
1988年 | 7篇 |
1987年 | 10篇 |
1986年 | 8篇 |
1985年 | 6篇 |
1984年 | 11篇 |
1983年 | 7篇 |
1982年 | 6篇 |
1981年 | 6篇 |
1980年 | 6篇 |
1979年 | 3篇 |
1978年 | 4篇 |
1977年 | 6篇 |
1976年 | 5篇 |
1974年 | 4篇 |
1973年 | 3篇 |
1972年 | 5篇 |
1971年 | 6篇 |
1967年 | 4篇 |
1966年 | 3篇 |
排序方式: 共有540条查询结果,搜索用时 31 毫秒
451.
Insanity has long been viewed as an excuse rather than a justification: Insane people are acquitted not because they did nothing wrong, but because they are considered morally blameless for their wrongful conduct. A new substantive test based on justificatory rather than exculpatory principles—a quasisubjective justification (QSJ) test—is compared to Finkel's relative culpability test, and to two excuse oriented tests, ALI and IDRA, across seven cases. QSJ and Finkel's test both produced significant verdict differences, whereas ALI and IDRA verdicts were not significantly different. The QSJ effect, however, was observed only in cases judged low in justification, and thus did not play a determinative role across cases; other variables, such as perceived severity of the disorder and culpability for bringing about the disorder, to which only Finkel's test was sensitive, seem to have more explanatory power. 相似文献
452.
453.
This paper examines the hypothesis that the Great Contraction was the result of rational rent-seeking by members of the Federal Reserve System. In contrast to the AST hypothesis, evidence on the share prices of member banks that survived the contraction suggests that the owners of these banks suffered an absolute decline in real wealth and a decline relative to a broad spectrum of other investment alternatives. Furthermore, monetary surprises had no statistically discernible effect on the share prices of these banks. This evidence conflicts with the notion that rational rent-seeking would lead the owners of member banks and their bureaucratic conspirators in the Federal Reserve System to unleash a policy with the goal of contracting the money supply by 35 percent. 相似文献
454.
显示和判定心肌早期病变的染色方法研究 总被引:4,自引:1,他引:4
作者用探讨的变色酸2R亮绿法和其他10余种染色方法,对心血管病猝死的尸检心肌和经心电、Mb、CPK、LDH、SOD诊断有急性心肌损伤的多种大量动物实验材料观察结果,证明心肌早期病变有染色性质异常,对显示和判定心肌早期病变有实用价值。提出并讨论了心肌早期病变及其显示、判定方法。 相似文献
455.
456.
457.
Euan Cameron 《International Review of Law, Computers & Technology》2002,16(2):211-218
458.
Fraser Cameron 《政治学》2002,22(2):68-75
The 11 September terrorist attacks have led the United States to reassess its foreign policy. The overwhelming priority is the defeat of terrorism and to further this end the United States is prepared to engage with states, regardless of their democratic credentials, willing and able to help the United States on the terrorist front. There is little sign, however, that the new-found interest in promoting multilateral co-operation to deal with terrorism is spilling over into other policy areas. The United States shows no sign of modifying its opposition to a number of international treaties and agreements – such as Kyoto, CTBT or the ICC – all of which its closest allies support. The US approach may be described as 'utilitarian multilateralism'. 相似文献
459.
460.
Vernet Lasrado Stephen Sivo Cameron Ford Thomas O’Neal Ivan Garibay 《The Journal of Technology Transfer》2016,41(2):205-219
Business incubators have become a popular policy option and economic development intervention tool. However, recent research shows that incubated firms may not benefit significantly from their incubator relationships, and may even be more vulnerable to failure post departure (graduation) from an incubator. These findings suggest that the impact of business incubation on new venture viability may be contingent on the type of support offered by an incubator and attributes of business environments within which incubation services are provided. Incubation services that protect and isolate ventures from key resource dependencies may hinder venture development and increase subsequent vulnerability to environmental demands. Alternatively, incubation services that help ventures connect and align with key resource dependencies are likely to promote firm survival. We propose that incubators vary in the services and resources they offer, and that university incubators typically provide greater connectivity and legitimacy with respect to important contingencies associated with key industry and community stakeholders. This leads us to propose that university affiliation is an important contingency that affects the relationship between firms’ participation in incubators and their subsequent performance. The purpose of this study is to evaluate this contingency by examining whether firms graduating from university incubators attain higher levels of post-incubation performance than firms participating in non-university affiliated incubators. We test this by evaluating the performance of a sample of graduated firms associated with the population of university-based incubators in the US contrasted against the performance of a matched cohort of non-incubated firms. The analysis uses an enhanced dataset that tracks the number of employees, sales, and the entry and graduation (departure) points of incubated firms from a university incubation program, so as to delineate the scope of influence of the incubator. 相似文献