首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   343篇
  免费   18篇
各国政治   15篇
工人农民   39篇
世界政治   17篇
外交国际关系   14篇
法律   190篇
中国共产党   1篇
中国政治   17篇
政治理论   63篇
综合类   5篇
  2023年   8篇
  2022年   5篇
  2021年   4篇
  2020年   13篇
  2019年   19篇
  2018年   16篇
  2017年   23篇
  2016年   17篇
  2015年   13篇
  2014年   18篇
  2013年   35篇
  2012年   31篇
  2011年   14篇
  2010年   21篇
  2009年   19篇
  2008年   13篇
  2007年   18篇
  2006年   14篇
  2005年   13篇
  2004年   9篇
  2003年   7篇
  2002年   5篇
  2001年   6篇
  2000年   3篇
  1999年   2篇
  1998年   1篇
  1997年   1篇
  1992年   3篇
  1990年   2篇
  1988年   3篇
  1987年   1篇
  1986年   1篇
  1984年   1篇
  1983年   2篇
排序方式: 共有361条查询结果,搜索用时 15 毫秒
231.
Some scholars have argued that environmental regulatory pressures constrain organizations' financial opportunities, while others maintain that environmental regulations can spur product and technology innovations and encourage greater operational efficiencies. Advocates on both sides have evidence in support of their positions. However, considering both perspectives in tandem and recognizing that other factors may be associated with improved financial performance, we may find that neither position is valid, or that both are. Relying on data for manufacturing facilities in seven countries, this study shows that more stringent environmental policy regimes are related to diminished firm profits. Yet organizations that are motivated by a green production focus—defined as enhancing internal efficiencies and new product and technology development—are more likely to improve their environmental performance. They also demonstrate a greater probability of benefiting financially, thereby offsetting the cost of regulation or accruing a net gain.  相似文献   
232.
In 2004, European competition law had been considerable changed by the introduction of the new Council Regulation No. 1/2003. One of the major renewals was the replacement of the centralized notification system for inter-company cooperations in favor of a so-called legal exemption system. We analyze the implications of this reform and its arising uncertainty on the agreements firms implement, especially on innovative agreements like vertical R&D agreements. By means of a decision theoretic approach, we show that the law’s intention to reduce the incentive to establish illegal cartels will be reached but innovating cooperations might be prevented. To avoid this unintended side effect, fines but not the monitoring activities should be increased.  相似文献   
233.
Globalization discourse is concerned with the effects of spatial change—changes in the shape, scale and extensity or social processes—and the effects of temporal change—particularly changes to, or away from, modernity. By drawing together both axes of change, globalization discourse suggests a way of navigating this tension. However, it is argued here that most globalization theories accord primacy to one of these axes, which results in them being conflated. As a result, globalization theories are often presented in highly systemic terms and downplay the diversity of social processes.  相似文献   
234.
When analysing trace materials and degraded DNA the issue of human specificity is highly important. Especially when it comes down to the analysis of mitochondrial DNA which is extremely susceptible to contamination authenticity is the main question. Therefore in the presented study mitochondrial primers were tested on their human specificity. In all cases it was possible to amplify DNA of animals with human mt-primers. These unintentional amplifications could only be decreased by choosing austere PCR parameters. The study implies the importance of comprehensive evaluation of primers, chemicals and PCR parameters.  相似文献   
235.
International Environmental Agreements: Politics, Law and Economics - While Regional Fisheries Management Organizations (RFMOs) face many challenges in their pursuit of sustainable resource...  相似文献   
236.
Literature on Canada-United States (US) counter-terrorism (CT) cooperation from the early 2000s presumed that Canadian CT policy was driven by US security imperatives and fear, leaving little room for Canada to develop its own path in fighting terrorism. It presumed that: the Canadian government was more worried about the US reaction to terrorism than terrorism itself; Canadian security policy sought to be “separate but cooperative”; and Canadian policy was informed by “wise” understandings of the US. We argue these assumptions no longer hold. Since 2011, with the rise of the Islamic State and foreign fighter activity, the Canadian government took independent steps to address national security concerns in a multilateral environment. We use process tracing to track evolutions in the Passenger Protect Program (Canada's “no-fly list” policy), showing how Canada has increasingly asserted agency in response to violent extremism. It suggests the prior scholarly consensus on the US role in Canadian CT policy must be rethought.  相似文献   
237.
Martin  Nicole S.  Blinder  Scott 《Political Behavior》2021,43(4):1487-1510
Political Behavior - Research shows that ethnic minority candidates often face an electoral penalty at the ballot box. In this study, we argue that this penalty depends on both candidate and voter...  相似文献   
238.
239.
Using qualitative data-mining methods, this study analyzed 39 child welfare case records in order to identify examples of skillful practice. Conducted in partnership with a public child welfare agency in northern California, the study found that child welfare workers are implementing many of the practices promoted by statewide and national child welfare practice frameworks. Broad categories of skillful practice identified included: (1) effective communication by social workers, (2) support for client self-determination, and (3) active intervention strategies. Study findings provide support for incorporating case record review processes in training and supervision in order to integrate practice-based expertise with research-based evidence.  相似文献   
240.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号