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   1099篇
  免费   89篇
各国政治   112篇
工人农民   72篇
世界政治   134篇
外交国际关系   63篇
法律   619篇
中国政治   4篇
政治理论   184篇
  2023年   19篇
  2022年   8篇
  2021年   26篇
  2020年   37篇
  2019年   43篇
  2018年   75篇
  2017年   96篇
  2016年   67篇
  2015年   56篇
  2014年   62篇
  2013年   178篇
  2012年   54篇
  2011年   42篇
  2010年   20篇
  2009年   20篇
  2008年   45篇
  2007年   41篇
  2006年   41篇
  2005年   40篇
  2004年   43篇
  2003年   47篇
  2002年   34篇
  2001年   20篇
  2000年   16篇
  1999年   10篇
  1998年   6篇
  1997年   5篇
  1996年   2篇
  1995年   3篇
  1994年   3篇
  1993年   2篇
  1992年   2篇
  1991年   3篇
  1990年   1篇
  1989年   1篇
  1988年   2篇
  1987年   1篇
  1984年   2篇
  1983年   1篇
  1979年   2篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1975年   1篇
  1973年   1篇
  1972年   2篇
  1968年   2篇
  1967年   1篇
  1966年   1篇
  1964年   1篇
排序方式: 共有1188条查询结果,搜索用时 15 毫秒
11.
12.
Electoral opposition to long‐established authoritarian regimes may be loyal or rejectionist. Loyal oppositionists vote to send a selective signal to rulers; rejectionist oppositionists vote blank or void the ballot in full disapproval. In Cuba, the number of candidates equals the number of seats, yet voters may vote blank, void, or selectively (choosing some but not all candidates on the ballot), although the Communist Party has campaigned for all candidates. This article uses a unique dataset for Cuba's 2013 National Assembly elections to study aggregate opposition outcomes. It shows the emergence of a loyal opposition, which sometimes votes for and sometimes against Communist Party candidates. The rejectionist opposition, stable over time, never votes for Communist Party candidates; it is found where the Communist Party behaves monopolistically. This combined opposition has better national‐level political information; it comes from more educated or larger urban areas or areas closer to Havana.  相似文献   
13.
La presencia recurrente del color rojo en La ocasión de Saer desempeña una función desestabilizadora en relación a la representación figurativa. En el artículo se establecen analogías entre esta función y el elemento voluble, no mimético de la pintura que el pensador e historiador de arte, Georges Didi-Huberman, denomina como “pan” en contraste con el detalle, categoría asociada con el carácter icónico de la pintura. Al igual que el “pan”, las manchas rojas en la novela apuntan a la dimensión de lo real que se resiste a la legibilidad y señala los límites de la narrativa realista. Saer se vale de contrastes cromáticos para aludir a tensiones políticas y epistemólogicas y a las paradojas de escribir una novela situada en el siglo diecinueve pero incorporando la experiencia literaria del siglo veinte.  相似文献   
14.
We discuss how far accountability practices may be relevant to the success of independent regulators in countries without a tradition of administrative autonomy. We develop a conceptualisation of agency accountability failures and develop an analytical framework to examine the life and termination of the Spanish regulatory agency for telecommunications, CMT (Comisión del Mercado de las Telecomunicaciones - Telecommunications Market Commission). We argue that the CMT’s termination was related, among other reasons, to accountability failures in its institutional design. The paper relies on a variety of sources, including legislation, literature, media coverage, and semistructured interviews with agency officials and several stakeholders.  相似文献   
15.
Using an innovative survey of protest participants and nonparticipants from five major street demonstrations in Mexico City in 2011 and 2012, this study tests the assumption that influences on protest participation vary across different types of events; namely, ritual demonstrations and reactive protests. The comparison is based on two assumptions: that these are two of the dominant forms of protest in contemporary Latin America, and that specifying the context for different types of social movement participation provides a better understanding of the individual mobilization process for groups seeking to defend their rights or gain new benefits. The comparative analyses reveal some crucial differences. Political interest and previous political experience are more influential in the decision to take part in reactive demonstrations. For ritual demonstrations, the decision to participate tends to be driven more by personal and organizational connections.  相似文献   
16.
International research collaboration (IRC) is associated with both positive and negative effects on the performance of research in emerging economies. While some authors claim that North–South collaborations improve scientific quality and visibility for Southern countries, others claim that it may entail the reorientation of research to comply with Northern agendas. South–South collaborations are thought to increase the focus on local affairs, therefore leading to a relatively small number of scientific international publications appearing in “high quality” journals. Research on the impact of IRC beyond publications in international journals has been neglected despite the importance of other products in knowledge creation. This research uses a broad range of scientific outputs to empirically assess such assumptions and explore the outcomes of IRC in Colombia. Results from multivariate regressions and nonparametric analyses show that, contrary to common assumptions, Colombian research teams collaborating with partners from the global South report higher scientific production, while those collaborating with Northern countries seem to contribute to local knowledge the most.  相似文献   
17.
18.
Ammonium nitrate fuel oil is an explosive mixture found in most antipersonnel landmines (APL) buried throughout the Colombian territory. During more than 50 years of internal conflict, the Colombian government has found that trained dogs are the most effective method to detect APL. However, the olfactive signature in ANFO is unknown and also if there are differences in detection related to the explosive manufacturing origin. Therefore, this work begins with the analytical validation of the method used to determine ammonia, in its derivatized form as carbamate, released by home-made ANFO using HS-SPME-GC-FID. Once validated, the method was used to identify ammonia and other organic volatile compounds present in ANFO, under laboratory and simulated field conditions. The validation process includes the evaluation of the optimum conditions for the derivation and extraction of butylcarbamate, the determination of the working ranges with linear response in FID, the limits of detection and quantification, the sensitivity, and the precision. The results of the validation established linearity and sensitivity in a concentration between 20 and 120 mg/L, as well as low limits of detection and quantification of 6.4 and 21.4 mg/L, respectively. Also, an intermediate precision of 11% for butylcarbamate with a repeatability of 8%. The validated method showed in real samples of home-made ANFO besides ammonia, the presence of low molecular methylamines, and also exhibited differences in volatile compositions according to the origin. The objective of this work is to offer a reliable analytical methodology for the extraction and analysis of volatile compounds from ANFO.  相似文献   
19.
20.
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