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   6095篇
  免费   237篇
各国政治   427篇
工人农民   182篇
世界政治   619篇
外交国际关系   440篇
法律   2555篇
中国政治   50篇
政治理论   1988篇
综合类   71篇
  2023年   41篇
  2022年   26篇
  2021年   54篇
  2020年   103篇
  2019年   150篇
  2018年   166篇
  2017年   194篇
  2016年   199篇
  2015年   116篇
  2014年   172篇
  2013年   1028篇
  2012年   170篇
  2011年   174篇
  2010年   173篇
  2009年   180篇
  2008年   158篇
  2007年   218篇
  2006年   190篇
  2005年   225篇
  2004年   227篇
  2003年   209篇
  2002年   226篇
  2001年   120篇
  2000年   115篇
  1999年   97篇
  1998年   90篇
  1997年   92篇
  1996年   90篇
  1995年   92篇
  1994年   95篇
  1993年   78篇
  1992年   84篇
  1991年   91篇
  1990年   62篇
  1989年   65篇
  1988年   64篇
  1987年   63篇
  1986年   67篇
  1985年   62篇
  1984年   53篇
  1983年   62篇
  1982年   48篇
  1981年   56篇
  1980年   38篇
  1979年   37篇
  1978年   32篇
  1977年   33篇
  1976年   30篇
  1974年   15篇
  1972年   15篇
排序方式: 共有6332条查询结果,搜索用时 15 毫秒
871.
872.
This article critiques Hollywood films from the last last 20–30 years that relate to family law. More specifically, this article considers films involving marriage, divorce, child custody, and adoption and focuses on the portrayal of law in those films. While the films are not tightly connected to one another and surely do not share a unified theme, the films do share a surprising skepticism bordering on distrust regarding law, legal procedures, and legal institutions. Hollywood appears to have picked up a general sentiment that family should be a private, intimate sanctuary and is better off without state intrusion through law. The films incorporate this sentiment and also reinforce it by teaching viewers to be leery of law in family matters. Key Points for the Family Court Community:
  • 1 Recent Hollywood films include not only abundant portrayals of family life but also numerous examples of family law.
  • 2 As a result, these Hollywood films have the potential to educate viewers about family law and to prompt certain normative attitudes about family law.
  • 3 In general, Hollywood films invite viewers to be skeptical and even disdainful of family law.
  相似文献   
873.
874.
Kaye DH 《Science & justice》2012,52(2):126-7; author reply 128-30
This letter explains why a recent study purporting to show that exposure to domain-irrelevant information caused DNA analysts to misinterpret a complex mixture does not warrant this conclusion on the basis of the data from the study.  相似文献   
875.
The floral development and potencies [Δ(9) -tetrahydrocannabinol (THC) contents] of cannabis plants were compared when grown indoors under high-pressure sodium lamps consuming electrical power at three densities (270, 400, and 600 W/m(2)). After a 3-week vegetative phase, plants were grown for 8 weeks, with lamps maintaining an artificial day length of 12 h. Foliar and floral yields were measured. Gas chromatography was used to measure the content of the psychoactive cannabinoid THC. Mean yields per unit of electrical power in each lighting regime ranged from 0.9 to 1.6 g/W, the highest being achieved in the lowest irradiance regime. The individual potencies of the separated leaf and flower materials were not affected by increasing irradiance. However, there was a corresponding increase in the overall potency of the aerial plant tissue. This was because of the plants in brighter conditions producing a higher proportion of floral material.  相似文献   
876.
877.
The purpose of this research synthesis was to examine treatment effects across studies of the service providers to offenders with mental illness. Meta-analytic techniques were applied to 26 empirical studies obtained from a review of 12,154 research documents. Outcomes of interest in this review included measures of both psychiatric and criminal functioning. Although meta-analytic results are based on a small sample of available studies, results suggest interventions with offenders with mental illness effectively reduced symptoms of distress, improving offender's ability to cope with their problems, and resulted in improved behavioral markers including institutional adjustment and behavioral functioning. Furthermore, interventions specifically designed to meet the psychiatric and criminal justice needs of offenders with mental illness have shown to produce significant reductions in psychiatric and criminal recidivism. Finally, this review highlighted admission policies and treatment strategies (e.g., use of homework), which produced the most positive benefits. Results of this research synthesis are directly relevant for service providers in both criminal justice and mental health systems (e.g., psychiatric hospitals) as well as community settings by informing treatment strategies for the first time, which are based on empirical evidence. In addition, the implications of these results to policy makers tasked with the responsibility of designating services for this special needs population are highlighted.  相似文献   
878.
Physical restraint of people experiencing mental health problems is a coercive and traumatic procedure which is only legally permitted if it is proportionate to the risk presented. This study sought to examine the decision-making processes used by mental health staff involved in a series of restraint episodes in an acute care setting. Thirty nurses were interviewed either individually or in focus groups to elicit their views on restraint and experience in specific incidents. Four factors which influenced the decision to restrain were identified: contextual demands; lack of alternatives; the escalatory effects of restraint itself; and perceptions of risk. While some of these factors are amenable to change through improvements in practice, training and organisational culture, nurses viewed restraint as a necessary evil, justified on the basis of the unpredictable nature of mental illness and the environment in which they worked.  相似文献   
879.
The purpose of this research was to evaluate the effects of a cognitive training and cell phone intervention on the recidivism of 70 juvenile offenders. Median days to rearrest were 106 for the control group, 191 for the class-only group, and 278 for the class plus cell phone group. Using rearrest as the survival criterion, the survival ratios of the class-only and class plus cell phone groups were 2.64 and 2.94 times longer than the control group, respectively. After controlling for gender, prior arrests, and risk score, the Poisson regression indicated that the class-only and class plus cell phone groups were 51% lower in total arrests than the control group. These results suggest that cognitive training supplemented with a cell phone coach is an effective and cost-efficient intervention for reducing recidivism.  相似文献   
880.
The University of Tennessee Anthropology Research Facility (ARF) is known for its unique contribution to forensic science as a site of human decomposition research. Studies conducted at ARF are integral in our understanding of the processes of human decomposition. As such, the authors are interested in the long-term effects of continuous human decomposition on the soil environment. Soil samples collected from within and outside the ARF were evaluated for moisture content, pH, organic content, total carbon and nitrogen content, and biomass by lipid-bound phosphorus, and total extracted DNA. Analyses revealed no significant differences (p<0.05) among the sampled areas within the facility, and yet demonstrated a possible trend toward increased levels of total N, Lipid-P, and water, suggesting an influx of high-quality nutrients into the ARF soil. Furthermore, elevated pH readings, presumably resulting from ammonification of the soil, were observed in areas of high decomposition. The negative control samples proved significantly different from nearly all samples collected within the facility, the exceptions being total carbon content and extractable DNA. These findings indicate that while landscape samples inside may be similar to themselves, they are dissimilar to those taken in a similar temperate forest biome with no recorded history of human decomposition.  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