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   424篇
  免费   35篇
各国政治   51篇
工人农民   18篇
世界政治   50篇
外交国际关系   25篇
法律   207篇
中国政治   5篇
政治理论   102篇
综合类   1篇
  2023年   9篇
  2021年   13篇
  2020年   14篇
  2019年   12篇
  2018年   16篇
  2017年   15篇
  2016年   26篇
  2015年   20篇
  2014年   19篇
  2013年   70篇
  2012年   23篇
  2011年   26篇
  2010年   15篇
  2009年   12篇
  2008年   17篇
  2007年   14篇
  2006年   17篇
  2005年   11篇
  2004年   17篇
  2003年   17篇
  2002年   10篇
  2001年   3篇
  2000年   5篇
  1999年   3篇
  1998年   5篇
  1997年   7篇
  1996年   4篇
  1995年   9篇
  1994年   3篇
  1993年   4篇
  1992年   7篇
  1991年   3篇
  1990年   2篇
  1989年   4篇
  1988年   2篇
  1984年   1篇
  1982年   1篇
  1981年   1篇
  1970年   1篇
  1965年   1篇
排序方式: 共有459条查询结果,搜索用时 15 毫秒
261.
Characterization of lesions in hanging deaths   总被引:1,自引:0,他引:1  
Hanging is a common method of committing suicide and a routine task in medico-legal autopsies. The hanging mark is the most relevant external sign and its characteristics are well known, but, for unknown reasons, there are major differences in reports on internal findings. We retrospectively studied 228 consecutive cases of hanging deaths. A complete standard autopsy was performed for every case. We investigated the association between the characteristics of the hanging mark and the frequency of bone, cartilage, soft tissue, and vascular injuries with the mode of suspension. Most cases (75.3%) presented some kind of bone or cartilage fracture, but these were unrelated to any of the variables studied. Vascular lesions are clearly more infrequent: intimal injuries were found in the carotid artery (9.1%), the jugular vein (2.2%), and ruptures of the carotid adventitial layer (21.7%). These could be partially associated with the use of a hard fixed noose and body weight.  相似文献   
262.
Government strategies to attract R&D-intensive FDI   总被引:1,自引:0,他引:1  
Competition among countries to attract the research and development (R&D) activities of multinational enterprises has increased substantially during the last years, but the strategies used by governments in this competition still remain largely unexplored. This paper addresses that gap by proposing a taxonomy of the policy instruments available to stimulate inward R&D-intensive foreign direct investment (FDI) and presenting the results of a comparative case study of two EU countries: Spain and Ireland. The main conclusion is that an efficient promotion of R&D-intensive FDI calls for a closer connection between innovation policy and inward investment promotion, which are two policy areas that have traditionally operated rather separately. In addition, investment promotion agencies targeting R&D-intensive FDI are advised to reconfigure the scope of services they provide by placing more emphasis on after-care, since R&D-intensive FDI tends to be evolutionary rather than purely greenfield.
José GuimónEmail:
  相似文献   
263.
International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - The chief concern of the paper is to initiate discussion on the difference between the private...  相似文献   
264.

A critical analysis of Kelsen’s theory leads to a broad concept of custom, which covers diverse types of customary norms, where the always required conviction of legal bindingness depends on different types of factual and normative reasons. In it we should include a strict concept of custom or legal usage, derogating custom, custom of general international law, custom that establishes an unwritten constitution, custom that establishes a new written constitution, judicial custom which creates a rule of precedent and custom newly expressed in the judicial application of customary rules. The basic norm could be formulated as a constitutive norm: ‘If the norms created through the first historical constitution are effective, then the first historical constitution (and all the norms derived from it) are valid.’ It is thus a customary constitutive rule that recognizes the first historical constitution as valid law. Norms which establish sources of law are constitutive rules, they can be customary norms or legislated norms, but if they are legislated, they have their validity recognized by, directly or indirectly, a constitutive customary norm. By using a broad concept of custom as a conventional practice, Hart implies that general recognition of a customary rule, together with the practice that accompanies it, are sufficient conditions of validity. A doctrine of recognition that is arrived at by means of criticism and a rational reconstruction of the doctrines of Kelsen and Hart regains the essential theses of the traditional recognition theory of Bierling and Engisch.

  相似文献   
265.
Journal of Youth and Adolescence - Latinx families can experience cultural stressors, which can negatively influence their emotional and behavioral health. Few studies have examined if perceived...  相似文献   
266.
The present study was designed to examine trajectories of personal identity coherence and confusion among Hispanic recent-immigrant adolescents, as well as the effects of these trajectories on psychosocial and risk-taking outcomes. Personal identity is extremely important in anchoring young immigrants during a time of acute cultural change. A sample of 302 recently immigrated (5 years or less in the United States at baseline) Hispanic adolescents (Mage?=?14.51 years at baseline; SD?=?0.88 years, range 14–17) from Miami and Los Angeles (47?% girls) completed measures of personal identity coherence and confusion at the first five waves of a six-wave longitudinal study; and reported on positive psychosocial functioning, depressive symptoms, and externalizing problems at baseline and at Time 6. Results indicated that identity coherence increased linearly across time, but that there were no significant changes in confusion over time and no individual differences in confusion trajectories. Higher baseline levels of, and improvements in, coherence predicted higher levels of self-esteem, optimism, and prosocial behavior at the final study timepoint. Higher baseline levels of confusion predicted lower self-esteem, greater depressive symptoms, more aggressive behavior, and more rule breaking at the final study timepoint. These results are discussed in terms of the importance of personal identity for Hispanic immigrant adolescents, and in terms of implications for intervention.  相似文献   
267.
This paper analyses the art policies deployed by old Spanish nobility in the second half of the nineteenth century, and in particular those who became involved in organising what were then known as retrospective art exhibitions. The old nobility, whose families held titles that dated back to the sixteenth and seventeenth centuries and belonged to the category of Grandes (Grandees) of Spain, joined together in the Diputación de la Grandeza de España – a private association created in opposition to the new nobility. It was a consultative institution attached to the Crown and created in 1815 under the honorary presidency of the King. This paper argues that the distinction sought by this regrouping of the old nobility does not imply lack of engagement in the new artistic model based on the notion of fine arts, in which they were responsible for a number of rather telling nuances. As well as sharing with the bourgeoisie the general idea that the arts were in need of protection, the nobility cultivated the image that patronage of the arts was linked to tradition, and this had consequences for the evaluation of history, the musealisation of their private collections and the public reception of old art.  相似文献   
268.
Behavioral and mental health outcomes have been associated with experiencing high levels of stress. Yet, little is known about the link between the nature of stressors, their accumulation over time, and the risk for externalizing and internalizing outcomes. Compared to the general population, African Americans are exposed to a disproportionate number of stressors beginning earlier in life. Incorporating Agnew’s General Strain Theory into the study of stress, this study examined whether different kinds of stressors are equally salient in the risk for violent behaviors and depressive symptoms among African Americans transitioning into young adulthood. It further examined the effects of the accumulation of stressors in different life domains and their effect on risks. This study utilized data from an African American subsample of an ongoing longitudinal study that followed 604 adolescents (53?% females) from 9th grade into adulthood. Multilevel growth curve models were used to examine how changes in stressors across multiple life domains related to violent behaviors and depressive symptoms. We found that continued exposure to perceived daily stress and racial discrimination stress increased the risk for violent behaviors during young adulthood, and exhibited a nonlinear relationship between the accumulation of stressors and risk for violence. Moreover, we found that exposure to perceived daily stress, financial stress, neighborhood stress, and racial discrimination stress increased the risk of depressive symptoms and led to a linear relationship between the accumulation of stressors and risk for depressive symptoms. Findings suggest identifiable stressors that can persist over time to influence risks at young adulthood.  相似文献   
269.
Researchers have noted increasingly the public health importance of addressing discriminatory policies towards lesbian, gay, and bisexual (LGB) populations. At present, however, we know little about the mechanisms through which policies affect LGB populations’ psychological well-being; in other words, how do policies get under our skin? Using data from a study of sexual minority young men (N = 1,487; M = 20.80 (SD = 1.93); 65 % White; 92 % gay), we examined whether statewide bans (e.g., same-sex marriage, adoption) moderated the relationship between fatherhood aspirations and psychological well-being. Fatherhood aspirations were associated with lower depressive symptoms and higher self-esteem scores among participants living in states without discriminatory policies. In states with marriage equality bans, fatherhood aspirations were associated with higher depressive symptoms and lower self-esteem scores, respectively. Fatherhood aspirations were associated negatively with self-esteem in states banning same-sex and second parent adoptions, respectively. Our findings underscore the importance of recognizing how anti-equality LGB policies may influence the psychosocial development of sexual minority men.  相似文献   
270.
The emergence of the economic and financial crisis has already shown important electoral and political consequences in southern Europe. Drawing on the experience of two bailed-out countries, Greece and Portugal, we use original data collected before and after 2008 to examine how patterns of political representation have changed during this period. We argue that austerity measures have significantly affected the way MPs represent their electorates, namely in terms of policy congruence. In addition, the economic crisis has also deepened the legitimacy crisis in both countries. Finally, we find that the short-term impact of the crisis has had a greater impact on voters' attitudes than on those of their representatives.  相似文献   
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