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   1663篇
  免费   108篇
各国政治   149篇
工人农民   106篇
世界政治   202篇
外交国际关系   117篇
法律   891篇
中国政治   1篇
政治理论   302篇
综合类   3篇
  2023年   21篇
  2022年   18篇
  2021年   37篇
  2020年   61篇
  2019年   68篇
  2018年   97篇
  2017年   105篇
  2016年   101篇
  2015年   60篇
  2014年   90篇
  2013年   256篇
  2012年   72篇
  2011年   60篇
  2010年   35篇
  2009年   40篇
  2008年   51篇
  2007年   57篇
  2006年   53篇
  2005年   48篇
  2004年   55篇
  2003年   49篇
  2002年   33篇
  2001年   47篇
  2000年   41篇
  1999年   17篇
  1998年   14篇
  1997年   17篇
  1996年   6篇
  1995年   11篇
  1994年   12篇
  1993年   11篇
  1992年   12篇
  1991年   9篇
  1990年   7篇
  1989年   5篇
  1988年   8篇
  1987年   7篇
  1985年   4篇
  1984年   3篇
  1983年   4篇
  1982年   6篇
  1980年   5篇
  1979年   6篇
  1978年   5篇
  1973年   8篇
  1972年   3篇
  1971年   8篇
  1968年   3篇
  1966年   3篇
  1965年   5篇
排序方式: 共有1771条查询结果,搜索用时 15 毫秒
981.
High rates of mental illnesses and victimization have been reported for prison populations. This study estimates physical and sexual victimization rates (inmate-on-inmate and staff-on-inmate) for people with and without mental illnesses residing in Spanish prisons. A random sample of 2484 male and 225 female inmates was drawn from eight prisons in Spain. Self-report data were collected on victimization, mental illness and sociodemographic characteristics. Prevalence rates of physical and sexual victimization during the past six months in prison among men with mental illnesses were higher than for men without reported mental illnesses (39.1% vs. 16.4% and 8.6% vs. 3.3%, respectively). Similar comparative results were found for women with and without mental illnesses (29.7% vs. 17.5% and 13.3% vs. 10.3%, respectively). A positive association was found between mental illnesses and victimization. This evidence suggests the need for integrated trauma treatment and proactive steps to protect incarcerated persons from violence during incarceration.  相似文献   
982.
In recent years understanding of poverty and of ways in which people escape from or fall into poverty has become more holistic. This should improve the capabilities of policy analysts and others working to reduce poverty, but it also makes analysis more complex. This article describes a simple schema which integrates multi-dimensional, multi-level, and dynamic understandings of poverty, of poor people's livelihoods, and of changing roles of agricultural systems. The article suggests three broad types of strategy pursued by poor people: ‘hanging in’, ‘stepping up’, and ‘stepping out’. This simple schema explicitly recognises the dynamic aspirations of poor people, diversity among them, and livelihood diversification. It also brings together aspirations of poor people with wider sectoral, inter-sectoral, and macro-economic questions about policies necessary for the realisation of those aspirations.  相似文献   
983.
Three types of relations are entangled nowadays in dealing with issues concerning national cultural security on both the theoretical and practical levels: (1) the relation between one’s own culture and that of other ethnic groups; (2) the relation between advanced and underdeveloped parts of culture; (3) the relation between one’s ethnic culture and so-called foreign advanced culture as related to the previous two. Accordingly, three modes of thinking are likely adopted in handling issues concerning national cultural security: to antagonize one’s own culture with that of other ethnic groups, that is, taking the “me or you” attitude; to dualize cultures as the “advanced” and the “underdeveloped”, that is, believing things to be good if not bad, or vice versa; and to assert that the ethnic are the advanced, that is, taking the “only-megood” stance. It is a very demanding job to maintain national culture and to pursue cultural development at the same time. Only when cultures are grouped into those without distinction between the advanced and the underdeveloped and those with such distinction can the relation between the ethnic and the advanced be properly handled. With the former, it is essential to maintain the ethnicity of one’s own culture before the cultural security is safeguarded. With the latter, however, the pursuit of advanced cultures and the advocacy of the advanced part of a particular culture is a key to ensuring and safeguarding the national cultural security. Hence, it is important to enhance the public awareness of cultural security, and more essentially for the government to offer scientifi cally appropriate orientation towards cultural security and to frame related policies.  相似文献   
984.
The implicit association test (IAT) is increasingly used to detect automatic attitudes. Yet a fundamental question remains about this measure: How well can it predict individual judgments? Though studies find that IAT scores shape individual evaluations, these inquiries do not account for an array of well-validated, theoretically relevant variables, thus raising the challenge of omitted variable bias. For scholars using the IAT, the risk here is one of misattributing to implicit attitudes what can be better explained by alternate and rigorous self-reports of explicit constructs. This paper examines the IAT’s performance in the context of U.S. immigration politics. Using a representative web survey of adults, I demonstrate the IAT effectively captures implicit attitude toward Latino immigrants. Critically, I then show these attitudes substantively mold individual preferences for illegal and legal immigration policy, net of political ideology, socio-economic concerns, and well-established measures of intolerance toward immigrants, such as authoritarianism and ethnocentrism. Combined, these results suggest the IAT measures attitudes that are non-redundant and potent predictors of individual political judgments.  相似文献   
985.
The Forensic Anthropology Service of the Medical Examiner's Office of Porto Alegre was created in September 1997 to examine human skeletons, establish identification and identify lesions that may explain death. From September 1997 to December 2006, 344 skeletons were examined (mean: 37 examinations/year), and 322 were human remains. Most skeletal remains belonged to men (61%) whose age was estimated at 21-50 years (61%). The most frequent bone lesions were caused by fractures (71%), firearm projectiles (11%) and the effects of weather (10%). Antemortem bone changes due to consolidated fractures, degenerative bone processes, congenital bone diseases, and medical procedures were found in 38 skeletal remains (14%). Identification was possible in 83 cases (26%); of these, 78% were identified by DNA analysis, 16% by dental examination, and 6% by anatomic changes associated with healed fractures.  相似文献   
986.
This study investigates the role of neighborhoods in adolescent violence in poor neighborhoods in San Juan, Puerto Rico. The study is part of a larger longitudinal project examining risk and resilience in adolescents' ages 12 to 15 years old and their caregivers. Using a cross-sectional design, a self-completion questionnaire, and an interviewer questionnaire, the authors assessed violent behaviors among participants across demographics, characteristics, and neighborhood social disorganization using the concepts of physical disorders and social disorder. Adolescent violence was positively associated with social disorder. The finding that adults in these neighborhoods walk around with visible firearms and engage in fighting, may have led adolescents to perceive that violence is an accepted behavior. Furthermore, socially disorganized neighborhoods might be less likely to organize on their own behalf because the occurrence of negative experience limits the amount of social support and resources that are available in the neighborhood.  相似文献   
987.
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   
988.
POPULATIONS: Over 102 unrelated Mestizos, 102 Native Amerindian (Kichwas), and 102 African Americans who represent the three largest communities of the country Ecuador (South America).  相似文献   
989.
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   
990.
Currently, aluminum stub with carbon adhesive devices are used to collect inorganic gunshot residues (GSR) from the hands of a shooter. In an ideal shooting case, the gunshot particles do not persist for more than 2 h in the hands of the shooter, provided that the hands have not been washed. However, for forensic analysis and inference, the extended persistence of GSR would be desirable. This study investigates a novel GSR sampling and detection protocol. Sampling was performed in the nostrils using swab devices impregnated in ethylenediaminetetraacetic acid (EDTA). The GSRs persisted for longer periods in nasal mucus than on the hands, and particles were detected 6 h after shooting occurred. The analytical determination was conducted by scanning laser ablation-inductively coupled plasma-mass spectrometry (SLA-ICPMS) which enable the identification of the number of particles and their elemental composition. Seventeen isotope signals corresponding to 13C, 205Tl and 15 analytes that are usually associated with the composition of GSR residues were monitored: 27Al, 29Si, 31P, 33S, 35Cl, 39K, 44Ca, 57Fe, 60Ni, 63Cu, 66Zn, 118Sn, 121Sb, 137Ba, and 208Pb. The SLA technique enabled the reduction of the swab analysis time to 40 min. The effectiveness of this methodology was evaluated with two types of firearms: a pistol and a shotgun. The results indicated that the methodology proposed for the analysis of the nasal GSR was effective and that it can improve or complement the forensic analyses and inferences presented in a court.  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