全文获取类型
收费全文 | 1366篇 |
免费 | 65篇 |
专业分类
各国政治 | 103篇 |
工人农民 | 76篇 |
世界政治 | 111篇 |
外交国际关系 | 108篇 |
法律 | 687篇 |
中国共产党 | 1篇 |
中国政治 | 19篇 |
政治理论 | 323篇 |
综合类 | 3篇 |
出版年
2023年 | 12篇 |
2022年 | 16篇 |
2021年 | 42篇 |
2020年 | 47篇 |
2019年 | 64篇 |
2018年 | 63篇 |
2017年 | 74篇 |
2016年 | 67篇 |
2015年 | 45篇 |
2014年 | 66篇 |
2013年 | 224篇 |
2012年 | 60篇 |
2011年 | 81篇 |
2010年 | 28篇 |
2009年 | 41篇 |
2008年 | 45篇 |
2007年 | 63篇 |
2006年 | 43篇 |
2005年 | 21篇 |
2004年 | 38篇 |
2003年 | 27篇 |
2002年 | 27篇 |
2001年 | 25篇 |
2000年 | 28篇 |
1999年 | 14篇 |
1998年 | 12篇 |
1997年 | 13篇 |
1996年 | 16篇 |
1995年 | 14篇 |
1994年 | 10篇 |
1993年 | 11篇 |
1992年 | 13篇 |
1991年 | 10篇 |
1990年 | 8篇 |
1989年 | 8篇 |
1988年 | 7篇 |
1987年 | 5篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1984年 | 9篇 |
1982年 | 3篇 |
1981年 | 2篇 |
1979年 | 2篇 |
1978年 | 3篇 |
1977年 | 4篇 |
1969年 | 3篇 |
1967年 | 1篇 |
1966年 | 1篇 |
1965年 | 1篇 |
1963年 | 1篇 |
排序方式: 共有1431条查询结果,搜索用时 15 毫秒
991.
992.
993.
994.
995.
Any system for the protection of intellectual property rights (IPRs) has three main kinds of distributive effects. It will determine or influence: (a) the types of objects that will be developed and for which IPRs will be sought; (b) the differential access various people will have to these objects; and (c) the distribution of the IPRs themselves among various actors. What this means to the area of pharmaceutical research is that many urgently needed medicines will not be developed at all, that the existing medicines will not be suitable for countries with a precarious health infrastructure or not target the disease variety that is prevalent in poorer regions. Such effects are commonly captured under the rubric of the “10/90 gap” in biomedical research. High prices will also restrict access to medicines as well endanger compliance to treatment schemes. IPRs are mainly held by multinational corporations situated in the developed world, which not only raises egalitarian concerns, but also severely limits the possibilities of companies in poorer countries to realize improvements on existing inventions, as they cannot financially afford to secure freedom to operate, which systematically shrinks the number of potential innovators. Those inequities lead to an enormous burden for the global poor and since no institution is willing to assume the responsibility to fulfil the right to health and the corresponding right of access to essential medicines, we have to analyse alternatives or additions to the actual intellectual property regimes in order to create new incentives to fill this gap. 相似文献
996.
Ruben van den Boer 《北京周报(英文版)》2013,56(33):48
My decision to come to China was a pretty simple one:curiosity.I am originally from Holland,but have always been fascinated with China-this mysterious and rising oriental superpower.I bought books and movies on the country,wishing to satisfy my questions.On the contrary,it only inspired more.With China’s economy booming,many amazing career opportunities are currently open to foreigners like me.It was a very natural decision for me to come to explore the possibilities in China.Beijing brims with opportunities and ancient Chinese culture,which is the reason I have made it my home. 相似文献
997.
998.
Frank J. van Rijnsoever Leon Welle Sjoerd Bakker 《The Journal of Technology Transfer》2014,39(4):635-661
The aim of this paper is to empirically examine the influence of credibility on the likelihood to grant consortia of collaborating actors an innovation subsidy. Theorizing from the viewpoint of resource dependence theory and the sociology of expectations, we hypothesize that four types of credibility of influence: scientific credibility, market credibility, expectation track record, and generated social capital. We operate on two levels of analysis, the actor and the consortium. We quantitatively analyze the Dutch electric vehicle subsidy program as case. We develop a model that accurately forecasts which consortia are most likely to receive subsidies. We demonstrate that generated social capital and market credibility positively influence the likelihood of receiving innovation subsidies, while scientific credibility sources and expectation track record have a negative influence. Based on these findings we provide policy recommendations and avenues for further research. 相似文献
999.
1000.