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   606篇
  免费   21篇
各国政治   37篇
工人农民   101篇
世界政治   65篇
外交国际关系   30篇
法律   284篇
中国政治   11篇
政治理论   95篇
综合类   4篇
  2024年   1篇
  2023年   9篇
  2022年   1篇
  2021年   5篇
  2020年   15篇
  2019年   29篇
  2018年   13篇
  2017年   32篇
  2016年   32篇
  2015年   23篇
  2014年   20篇
  2013年   111篇
  2012年   20篇
  2011年   27篇
  2010年   18篇
  2009年   18篇
  2008年   32篇
  2007年   18篇
  2006年   18篇
  2005年   27篇
  2004年   19篇
  2003年   10篇
  2002年   13篇
  2001年   4篇
  2000年   9篇
  1999年   9篇
  1998年   10篇
  1997年   8篇
  1996年   9篇
  1995年   7篇
  1994年   9篇
  1993年   10篇
  1992年   7篇
  1991年   4篇
  1990年   3篇
  1989年   5篇
  1988年   2篇
  1987年   3篇
  1985年   7篇
  1984年   1篇
  1983年   4篇
  1982年   1篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
  1976年   1篇
排序方式: 共有627条查询结果,搜索用时 15 毫秒
101.
102.

Purpose

This study investigated genetic and environmental commonalities and differences between aggressive and non-aggressive antisocial behavior (ASB) in male and female child and adolescent twins, based on a newly developed self-report questionnaire with good reliability and external validity -- the Self-Report Delinquency Interview (SR-DI).

Methods

Subjects were 780 pairs of twins assessed through laboratory interviews at three time points in a longitudinal study, during which the twins were: (1) ages 9-10 years; (2) age 11-13 years, and (3) age 16-18 years.

Results

Sex differences were repeatedly observed for mean levels of ASB. In addition, diverse change patterns of genetic and environmental emerged, as a function of sex and form of ASB, during the development from childhood to adolescence. Although there was some overlap in etiologies of aggressive and non-aggressive ASB, predominantly in shared environmental factors, their genetic overlap was moderate and the non-shared environmental overlap was low.

Conclusions

Taken together, these results reinforced the importance of differentiating forms of ASB and further investigating sex differences in future research. These results should be considered in future comparisons between youth self-report and parental or teacher report of child and adolescent behavior, and may help elucidate commonalities and differences among informants.  相似文献   
103.
104.
Freedom from personal attack and security of one's personal possessions are goals to which almost everyone subscribes ¾ from the derelicts clutching their bottles of cheap wine to millionaires worried about intrusions into their mansions. Reducing the risk of crime against our homes, our property and ourselves is a goal about which much consensus exists (Levine, et al., 1980: 22). Since formal means of crime control through the Criminal Justice Agencies only have been found to be ineffective, women must turn to community‐oriented policing as a welcome alternative for self‐protection. This article discusses the strategies women employ to cope with the rising incidence of crime.  相似文献   
105.
This study examined whether social support tied to relocation efforts and neighborhood social climate may mediate the effects of stressful life events on mental health outcomes following Hurricane Katrina. Participants were 108 adult persons made homeless by Hurricane Katrina and evacuated to Columbia, South Carolina. Civic leaders developed an intervention model that emphasized (a) a one-stop point of entry, (b) living in hotels and apartments rather than shelters, and (c) matching hotels with volunteer “hosts” to assist in relocation efforts. Results revealed that perceived neighborhood factors and satisfaction with host relationship were related to several mental health outcomes. Neighborhood social climate partially mediated several mental health outcomes. Implications of this intervention model and the utility of social ecological perspectives on homelessness interventions are discussed.  相似文献   
106.
This article provides evidence from a randomised control trial conducted among potato farmers in Ecuador about the impact of mobile phone text messages on farmer knowledge about and adoption of integrated pest management (IPM) practices. Using psychological constructs, we examine competing explanations for non-standard decision-making leading to low adoption of beneficial agricultural technologies. Farmers who received text messages have significantly higher knowledge and are more likely to adopt most IPM practices than those in the control group. Findings provide evidence that text messages lead to behavioural changes by reducing inattention and sub-optimal heuristics in the face of complex decisions.  相似文献   
107.
The Cuban situation reveals how long-lasting late-adolescent formed views, grounded in lived experiences, often prove to be, and how they may maintain meaning even after people emigrate. Those experiences may be differently interpreted depending on social class as well as age. Building on the work of Mannheim, a historically grounded generational frame of analysis helps explain why Cubans initially divided deeply over the revolution, with many of those who opposed it uprooting. It also helps explain why the first émigrés who fled the revolution continued to oppose the social transformation of their homeland, even as they assimilated in their adopted country. They continued being committed to ideas formed in their pre-immigration past. The historically grounded generational frame of analysis also helps explain why the Cuba-born who experienced the Special Period viewed life differently, whether they remained in Cuba or emigrated.  相似文献   
108.
109.
The term professional is used in a variety of ways as people discuss issues of professionalism in the public service. There are a1so some particular concerns regarding potential conflicts between ideas of democratic control over people who have expert knowledge and skills. These various ideas of professionalism are examined, and a series of more precise defintione are offered. Time-stratified systems theory is used to clarify the concepts and to indicate how control can be exercised over various types of public employees depending upon the concept of professional being used.  相似文献   
110.
基于GEM模型的资源型企业可持续发展障碍因素分析   总被引:3,自引:0,他引:3  
资源型企业可持续发展对于经济生产和生态保护具有重要意义。本文以GEM模型为分析框架,探讨了我国资源型企业可持续发展的障碍因素;通过进一步对各个因素的理论分析,找出了影响我国资源型企业可持续发展的"瓶颈";最后,针对我国资源型企业可持续发展的现状,提出相应的对策与建议。  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