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   534篇
  免费   23篇
各国政治   19篇
工人农民   68篇
世界政治   129篇
外交国际关系   19篇
法律   233篇
中国政治   7篇
政治理论   78篇
综合类   4篇
  2023年   3篇
  2022年   1篇
  2021年   5篇
  2020年   9篇
  2019年   11篇
  2018年   26篇
  2017年   25篇
  2016年   28篇
  2015年   18篇
  2014年   12篇
  2013年   72篇
  2012年   19篇
  2011年   13篇
  2010年   20篇
  2009年   17篇
  2008年   25篇
  2007年   21篇
  2006年   27篇
  2005年   22篇
  2004年   32篇
  2003年   27篇
  2002年   27篇
  2001年   9篇
  2000年   19篇
  1999年   6篇
  1998年   12篇
  1997年   6篇
  1996年   6篇
  1995年   9篇
  1994年   4篇
  1993年   8篇
  1992年   5篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1987年   1篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1982年   2篇
  1981年   1篇
  1978年   1篇
  1973年   2篇
排序方式: 共有557条查询结果,搜索用时 15 毫秒
91.
Gross  Kimberly  Wronski  Julie 《Political Behavior》2021,43(2):585-613
Political Behavior - What will motivate citizens to support efforts to help those in need? Charitable organizations seeking support for their cause will often use the story of a specific individual...  相似文献   
92.
93.
The purpose of this study is to examine domestic violence shelter workers' perceptions of child maltreatment reporting. A sample of 82 professionals from domestic violence shelters across the United States participated in a survey focusing on a variety of different types of reports and the frequency of both positive and negative outcomes arising from these reports. Possible outcomes included in the study are damage to the relationship between the worker and the battered woman, disempowerment of the battered woman, discouragement from seeking further help, protection of the child, further traumatization of the child, further disruption to the family, and damage to the woman's likelihood of maintaining custody. Significant differences in perceived impact are found based on identity of abuser (spousal batterer vs. battered woman) and nature of report (child as witness to domestic violence vs. child as victim of abuse). These results point to the complexity of perceptions regarding the impact of reporting.  相似文献   
94.
On the basis of simultaneously sampled postmortem blood specimens from the left and right femoral veins the pre-analytical variation of methadone measurements was evaluated and compared to the analytical variation. The material consisted of a series of 27 duplicate samples from routine autopsy cases comprising mainly drug addicts. A chiral LC-MS/MS method was used for measurement of the R- and S-enantiomers of methadone and its main metabolite 2-ethyl-1,5-dimethyl-3,3-diphenylpyrrolinium (EDDP). The analytical CV% was determined to be in the range 3-4% for methadone enantiomers and 4-6% for EDDP enantiomers. The total measurement uncertainty (CV(T)) was estimated from the pre-analytical variation (CV(PA)), analytical variation proper (CV(A)), and variation related to calibration (traceability) (CV(Cal)) according to the relationship CV(T) = [CV(2)(PA) + CV(2)(A) + CV(2)(cal)](0.5). Uncertainty related to calibration concerned a component related to the purity of drug reference compound and a contribution from the production of calibrator solutions (CV(Cal)<1%). Pre-analytical sampling variation was estimated from the duplicate measurements of blood samples after subtraction of the analytical component. The pre-analytical variation amounted to a CV% of 19-21% for R- and S-methadone and 30-38% for R- and S-EDDP, i.e. considerably larger than the other components. Due to the squared addition principle, the resulting total uncertainty (CV(T)) became largely identical to the CV(PA), i.e. 19-21% for R- and S-methadone and 31-38% for R- and S-EDDP enantiomers. Accordingly, CV(T) exceeded CV(A) by a factor 5 or more. Dominance of the pre-analytical component of variation may also be likely for other compounds measured in postmortem blood samples. Thus, the width of the 95%-uncertainty interval (+/-2CV(T)) for a postmortem measurement is largely determined by the pre-analytical component of variation. This should be kept in mind when judging on the uncertainty of postmortem measurement results.  相似文献   
95.
The European Union has some of the world's most ambitious and highly developed environmental laws on its books, but their effectiveness is severely compromised by non-compliance. With the UNECE Aarhus Convention (1998), Europe launched an innovative legal experiment, democratizing environmental enforcement by conferring third party citizens and environmental non-governmental organizations (ENGOs) with legal rights of access to environmental information, public participation, and access to justice in environmental matters. Based on some 2000 surveys and over 150 interviews with stakeholders from three Member States – France, Ireland, and the Netherlands – we adopt a holistic, 360° perspective, capturing the views of regulated parties, NGOs, and the general public on this private governance experiment. Our data provide important new insights into the practical effectiveness of Europe's laws enabling private environmental enforcement, its (intended and unintended) effects on farmers' compliance decisions in the vital area of nature conservation, and how law might be used to stimulate pro-environmental predispositions.  相似文献   
96.
Little research has examined the consequences of a suicide for social or family networks. Because suicide occurs within families, the focus on the aftermath of suicide within families is an important next step to determine exactly how to help survivors. In this article, we review and summarize the research on the impact of suicide on individuals within families and on family and social networks. We begin with a discussion of family changes following suicide. Next, we discuss the effects of suicide on social networks overall and responses of children and the elderly to a suicide in the family. Finally, we identify key issues that remain to be resolved in family survivor research and make recommendations for future studies.  相似文献   
97.
We investigated the forensic efficacy of the 30 insertion/deletion (Indel) markers included in the Qiagen Investigator® DIPplex kit in 529 Pakistani individuals from five major subpopulations in Pakistan (Punjabi, Pashtun, Sindhi, Saraiki, and Baloch). In the Sindhi population, the distribution of HLD81 and HLD97 alleles deviated from Hardy-Weinberg equilibrium after Bonferroni correction. The combined match probability ranged from 2.0E-12 (Pashtun and Baloch) to 1.0E-12 (Sindhi), and the mean paternity exclusion power varied from 0.995 (Punjabi, Sindhi, and Saraiki) to 0.996 (Pashtun and Baloch). The high combined power of discrimination (0.999 999 999 999 97) and low combined match probability (1.7E-12) for all subpopulations studied support the utility of the 30 Indel markers for forensic identification in the studied subpopulations. The allele frequencies of the Indel markers in the Pakistani subpopulations were compared with those from 18 other populations. The results show that the populations clustered according to geography. The subpopulations investigated in this work showed a close genetic relationship with others from Pakistan, as well as with South Central Asian and Middle Eastern populations. The results suggest that the Investigator® DIPplex kit can be useful as a supplementary tool for human identification in the five Pakistani subpopulations investigated in this study.Supplemental data for this article is available online at https://doi.org/10.1080/20961790.2021.1933366 .  相似文献   
98.
99.
Theories of resistance have informed ethnographic research over the last two decades. Researchers have been concerned to document the significance of counter-cultural acts of resistance and have highlighted intersections of class, gender and “race” within the processes of resistance. However, questions of sexuality have been largely silenced. This paper focuses on the experiences of six women who identify themselves as lesbian and attempts to assert the importance of sexuality within debates on resistance and accommodation. The experiences of these women reveal that lesbians are willing and able to use a conscious collage of bodily signifiers to resist the discourse of compulsory (hetero)sexuality. The “continuum of resistance” illuminated in this paper can encompass both the lesbian who wears her sexuality on a t-shirt and the lesbian who “passes” in a heterosexual frock.  相似文献   
100.
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