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   290篇
  免费   4篇
各国政治   13篇
工人农民   17篇
世界政治   22篇
外交国际关系   18篇
法律   152篇
政治理论   68篇
综合类   4篇
  2022年   3篇
  2020年   2篇
  2018年   2篇
  2017年   4篇
  2016年   11篇
  2015年   3篇
  2014年   3篇
  2013年   53篇
  2012年   5篇
  2011年   4篇
  2010年   7篇
  2009年   9篇
  2008年   11篇
  2007年   11篇
  2006年   6篇
  2005年   14篇
  2004年   9篇
  2003年   10篇
  2002年   7篇
  2001年   4篇
  2000年   3篇
  1999年   3篇
  1998年   8篇
  1997年   4篇
  1996年   5篇
  1995年   5篇
  1994年   3篇
  1993年   6篇
  1992年   6篇
  1991年   8篇
  1990年   5篇
  1989年   2篇
  1988年   3篇
  1987年   3篇
  1986年   5篇
  1984年   2篇
  1981年   2篇
  1980年   2篇
  1979年   3篇
  1978年   3篇
  1977年   4篇
  1975年   4篇
  1974年   5篇
  1973年   3篇
  1971年   2篇
  1970年   3篇
  1967年   2篇
  1965年   2篇
  1958年   1篇
  1943年   1篇
排序方式: 共有294条查询结果,搜索用时 15 毫秒
11.
12.
The end-value theory of charismatic influence is premised on the existence of two basic types of values which underlie and primarily determine all influence relations. Charismatic and transactional influence relations are defined by these value types. A values typology is proposed as a general framework for analysis of influence relations, leadership, and related constructs. Predictive models, both primary and extended, are derived and specified. Implications for testing the models, for the study of a set of related constructs, and for management practice are discussed.  相似文献   
13.
14.
15.
There is broad agreement that neighborhood contexts are important for adolescent development, but there is less consensus about their association with adolescent smoking and alcohol use. Few studies have examined associations between neighborhood socioeconomic contexts and smoking and alcohol use while also accounting for differences in family and peer risk factors for substance use. Data drawn from the Seattle Social Development Project (N?=?808), a gender-balanced (female?=?49%), multiethnic, theory-driven longitudinal study originating in Seattle, WA, were used to estimate trajectories of smoking and alcohol use from 5th to 9th grade. Time-varying measures of neighborhood socioeconomic, family, and peer factors were associated with smoking and alcohol use at each wave after accounting for average growth in smoking and alcohol use over time and demographic differences. Results indicated that living in more socioeconomically disadvantaged neighborhoods, lower family income, lower family general functioning, more permissive family smoking environments, and affiliation with deviant peers were independently associated with increased smoking. Lower family functioning, more permissive family alcohol use environments, and deviant peers were independently associated with increased alcohol use. The effect of neighborhood disadvantage on smoking was mediated by family income and deviant peers while the effect of neighborhood disadvantage on alcohol use was mediated by deviant peers alone. Family functioning and family substance use did not mediate associations between neighborhood disadvantage and smoking or alcohol use. The results highlight the importance of neighborhood, family, and peer factors in early adolescent smoking and alcohol use. Future studies should examine the unique association of neighborhood disadvantage with adolescent smoking net of family socioeconomics, functioning, and substance use, as well as peer affiliations. Better understanding of the role of contextual factors in early adolescent smoking and alcohol use can help bolster efforts to prevent both short and long harms from substance use.  相似文献   
16.
Few studies have examined risk factors of childhood and early adolescent depressive symptomatology trajectories. This study examined self-report depressive symptomatology across a 6-year time period from 2nd to 8th grade to identify latent groups of individuals with similar patterns of depressive phenomena in a sample of 951 children (440 girls, 511 boys). Analyses, using semiparametric group modeling (SGM), identified 5 trajectory groups for girls and boys: low depressed stables, low depressed risers, mildly depressed stables, moderately depressed changers, and moderately depressed risers. Individual risk factors, with the exception of shy/withdrawn behavior, were significantly different across trajectory group membership for boys and girls, as was low-income status for boys. Boys in the low depressed and mildly depressed stable trajectory groups had significantly higher levels of antisocial behavior, attention problems, and lower social competency compared to girls in similar groups. These results suggest that universal prevention programs implemented in early elementary school that target selected risk factors may be helpful in reducing future adolescent mental health problems, specifically depressive symptomatology.  相似文献   
17.
Concepts of federalism are briefly rmiewed with the intent of inquiring whether the states have become entrepreneurial as a result ofthe Reagan devolution. An overview of the contributions to the symposium suggests that support for a theory of cyclicality is not consistently evident in the states. Necessary resatrcesarenotalways present toallow thestates to bethe policyentrepreneurs in the United States.  相似文献   
18.
19.
Abstract: There is an ambivalence in attitudes to public administration as a field of study among both academics and practitioners in Australia. Teachers, researchers, students, public servants seeking training and managers have differing interests and expectations. Disagreements about the field have contributed to the lack of a unified framework of concepts, while the field has fragmented into public administration, public policy and public management, aside from other divisions such as "old" versus "new" public administration. "Education" and "training" have taken diverging paths and academics and practitioners have drifted apart. There needs to be a closer dialogue that can only be based on a generally agreed paradigm for Australian Public Administration as a field of study.  相似文献   
20.
Prevention science has produced information about risk and protective factors that predict adolescent drug use and related problem behaviors. This paper investigates the Communities That Care Youth Survey that measures multiple risk and protective factors. Using a sample of 172,628 students who participated in surveys administered in seven states in 1998, analyses were conducted to test the factor structure of these risk and protective factors and to test the equivalence of the factor models across five racial/ethnic groups (African Americans, Asians or Pacific Islanders, Caucasians, Hispanic Americans, and Native Americans), four grade levels (6th, 8th, 10th, and 12th) and both gender groups. Results support the construct validity of the surveys risk and protective factor scales and indicate that the measures are equally reliable across males and females and five racial/ethnic groups. Implications of these findings for science-based prevention planning are discussed.  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