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201.
Applications of modern methods for analyzing data with missing values, based primarily on multiple imputation, have in the last half‐decade become common in American politics and political behavior. Scholars in this subset of political science have thus increasingly avoided the biases and inefficiencies caused by ad hoc methods like listwise deletion and best guess imputation. However, researchers in much of comparative politics and international relations, and others with similar data, have been unable to do the same because the best available imputation methods work poorly with the time‐series cross‐section data structures common in these fields. We attempt to rectify this situation with three related developments. First, we build a multiple imputation model that allows smooth time trends, shifts across cross‐sectional units, and correlations over time and space, resulting in far more accurate imputations. Second, we enable analysts to incorporate knowledge from area studies experts via priors on individual missing cell values, rather than on difficult‐to‐interpret model parameters. Third, because these tasks could not be accomplished within existing imputation algorithms, in that they cannot handle as many variables as needed even in the simpler cross‐sectional data for which they were designed, we also develop a new algorithm that substantially expands the range of computationally feasible data types and sizes for which multiple imputation can be used. These developments also make it possible to implement the methods introduced here in freely available open source software that is considerably more reliable than existing algorithms.  相似文献   
202.
Prior research has linked the innovative behavior of public sector employees to desirable outcomes such as improved efficiency and higher public service quality. However, questions regarding the drivers of innovative behavior among employees have received limited attention. This article employs psychological empowerment theory to examine the underlying processes by which entrepreneurial leadership and public service motivation (PSM) shape innovative behavior among civil servants. Based on three‐wave data from 281 Chinese civil servants and their 59 department heads, entrepreneurial leadership is found to positively influence subordinates' innovative behavior by enhancing two dimensions of psychological empowerment: meaning and impact. Additionally, PSM was found to influence subordinates' innovative behavior by enhancing the dimensions of meaning and competence. These findings suggest that to facilitate innovative behavior among employees, public organizations should consider introducing training that encourages leaders to serve as entrepreneurial role models and recruit employees with high levels of PSM.  相似文献   
203.
In recent years, scholars have expended considerable efforts to understand the executive appointment process and the forces influencing the choices made by the president and the Senate. However, some factors integral to theoretical models have not been well integrated empirically, and other relevant factors have not been incorporated much at all. Here, we focus on one determinant corresponding to the former critique—nominee ideology—and another corresponding to the latter—the independence of decision makers in the targeted agencies. We examine a series of theoretically driven hypotheses regarding the effects of both ideology and independence on who gets nominated and if and when nominees are eventually confirmed. Results show nominee ideology and decision maker independence matter a great deal and factor into presidential strategic choices and senatorial responses in ways according to expectations. Our findings have important ramifications for understanding appointments empirically and for future theoretical development.  相似文献   
204.
The (unheralded) first step in many applications of automated text analysis involves selecting keywords to choose documents from a large text corpus for further study. Although all substantive results depend on this choice, researchers usually pick keywords in ad hoc ways that are far from optimal and usually biased. Most seem to think that keyword selection is easy, since they do Google searches every day, but we demonstrate that humans perform exceedingly poorly at this basic task. We offer a better approach, one that also can help with following conversations where participants rapidly innovate language to evade authorities, seek political advantage, or express creativity; generic web searching; eDiscovery; look‐alike modeling; industry and intelligence analysis; and sentiment and topic analysis. We develop a computer‐assisted (as opposed to fully automated or human‐only) statistical approach that suggests keywords from available text without needing structured data as inputs. This framing poses the statistical problem in a new way, which leads to a widely applicable algorithm. Our specific approach is based on training classifiers, extracting information from (rather than correcting) their mistakes, and summarizing results with easy‐to‐understand Boolean search strings. We illustrate how the technique works with analyses of English texts about the Boston Marathon bombings, Chinese social media posts designed to evade censorship, and others.  相似文献   
205.
Foreign aid is usually seen as a form of international cooperation. Thus, the expectation is that states engaged in international rivalry with one another should be unlikely to provide each other aid. However, they do provide their enemies aid. We consider how situations of uncertainty influence aid transfers between states. We argue that states may provide each other aid to limit uncertainty from potential regime changes that could lead to war. Such uncertainty is particularly bad for rivals who are prone to militarized conflict. We find that rivals may provide one another foreign aid when one of the countries is experiencing regime-threatening levels of domestic instability. We compare these results to the behavior of nonrivals and find that: Rivals are likely to provide their enemies aid in times of uncertainty; rivals are no less likely to give aid to each other than are nonrivals; and rivals provide more aid during times of instability than do nonrivals.  相似文献   
206.
Seattle-based PATH is one of the world’s largest not-for profit organisations focused on improving health in low-income countries. This article argues the history of this understudied organisation is critical to understanding how collective action focused on facilitating developing countries’ access to essential health technologies is structured. Since its establishment almost 40 years ago, the organisation has been a catalyst for multidisciplinary public–private collaboration that has produced affordable, culturally appropriate health technologies. From its origins in reproductive health, enabling contraceptive technology transfers and advising on regulatory standards, to its more recent managerial roles in the development of inexpensive vaccines produced in developing countries, PATH has repeatedly illustrated how public–private collaboration in product research and development can increase poor populations’ access to essential health technologies. This in turn has provided substance to the contested narrative that engaging business is critical to reducing global health disparities.  相似文献   
207.
In December 1998, Peter Mandelson MP, one of the principal architects of the Labour Party's victory in the May 1997 general election, dramatically resigned as Secretary of State for Trade and Industry. Nevertheless, despite his relatively brief period in that office, Mr. Mandelson left his imprint on policy through the publication in November 1998 of a major White Paper, 'Our Competitive Future: Building the Knowledge Driven Economy'. The White Paper sets out the New Labour analysis of the national political economy in a globalized world economy and is very much influenced by Mr. Mandelson's experience of the entrepreneurial spirit during his fact-finding visit to the United States of America. This article seeks to chart the relationship between New Labour's desire to foster the development of the corporate sector within a vibrant entrepreneurial culture and the need to ensure that the integrity of the market is preserved in an arena which is seen as inimicable to strong regulatory intervention by the state. As well as mapping New Labour's political rhetoric onto contemporary debates in corporate governance, the analysis will involve an examination of the interface between business practice and morality. In particular, the article will focus upon the role of the conception of company directors as 'responsible risk takers' and the upon the use of name-and-shame sanctions in the development of an entrepreneurial culture in which all corporate enterprises are seen as having a legitimate societal 'licence to operate'.  相似文献   
208.
This article suggests that lawyers and courts are largely oblivious to scientific insights regarding the value and limitations of latent fingerprint evidence. It proceeds through a detailed historical analysis of the way fingerprint evidence has been reported and challenged. It compares legal responses with mainstream scientific research. Our analysis shows that fingerprint evidence is routinely equated with categorical proof of identity notwithstanding scientific warnings that such an approach is ‘indefensible’. We find that legal challenges to latent fingerprint evidence have been uniformly focused on adjectival issues (e.g. compliance with enabling legislation), leaving the validity and accuracy of this subjective comparison technique virtually unexamined since its first reception at the very beginning of the twentieth century. Lack of legal engagement with validity, error and scientific research suggest that adversarial procedures have not worked effectively to secure scientifically reliable expert evidence and that legal personnel struggle with elementary scientific reasoning.  相似文献   
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