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   913篇
  免费   31篇
各国政治   56篇
工人农民   22篇
世界政治   70篇
外交国际关系   41篇
法律   563篇
中国政治   19篇
政治理论   165篇
综合类   8篇
  2024年   39篇
  2023年   153篇
  2022年   3篇
  2021年   38篇
  2020年   10篇
  2019年   21篇
  2018年   21篇
  2017年   25篇
  2016年   18篇
  2015年   17篇
  2014年   18篇
  2013年   90篇
  2012年   22篇
  2011年   25篇
  2010年   29篇
  2009年   26篇
  2008年   26篇
  2007年   25篇
  2006年   23篇
  2005年   20篇
  2004年   29篇
  2003年   19篇
  2002年   14篇
  2001年   13篇
  2000年   18篇
  1999年   18篇
  1998年   23篇
  1997年   14篇
  1996年   10篇
  1995年   4篇
  1994年   13篇
  1993年   11篇
  1992年   13篇
  1991年   11篇
  1990年   8篇
  1989年   5篇
  1988年   7篇
  1987年   5篇
  1986年   11篇
  1985年   3篇
  1984年   6篇
  1983年   5篇
  1982年   4篇
  1981年   4篇
  1980年   2篇
  1979年   5篇
  1978年   4篇
  1977年   5篇
  1973年   2篇
  1964年   2篇
排序方式: 共有944条查询结果,搜索用时 0 毫秒
51.
52.
Behaviors developed in adolescence influence health later in life. The purpose of this study was to investigate the frequency of health care provider's discussion of health behaviors with overweight and non-overweight adolescents and identify demographic and health behaviors related to exercise, hours of television viewing, and weight issues associated with these discussions. A Cross sectional survey of urban adolescents was conducted. Trained interviewers administered surveys over a three month period in 2001 at an urban academic pediatric and adolescent clinic. The 252 adolescents surveyed had a mean age of 15 with 49% categorized as being at risk for overweight/overweight and 51% as normal weight using the CDC percentiles for BMI. While 16% of the adolescents reported that their physician or nurse discussed the amount of television they watched, rates of discussion related to exercise (58%), and weight (54%) were much higher. In multivariate analyses, health care provider discussions with adolescents regarding exercise were more common for overweight (O.R.=2.42, 95% C.I. [1.28–4.57]) and at risk for overweight (O.R.=1.98, 95% C.I. [1.03–3.81]) adolescents, whereas physician discussion of television viewing was not associated with weight. Discussions of weight were more common for female (O.R.=2.18, 95% C.I. [1.21–3.95]), African-American (O.R.=2.53, 95% C.I. [1.40–4.57]), and overweight (O.R.=3.92, 95% C.I. [1.97–7.81]) adolescents. Even after adjusting for weight, race and gender strongly influenced the frequency of discussions about weight in physician offices. Although health care providers frequently address weight and exercise with adolescents, more discussions related to sedentary behaviors such as television viewing may be warranted to address adolescent obesity.Received PhD in Epidemiology from University of California, San Diego. Research interests include smoking prevention and cessation among adolescents and health promotion interventions.Received MD from University of Missouri-Kansas City and MPH from Johns Hopkins University. Research interests include health services research and research in support of measurable, systematic improvements in the quality of medical care.Received medical degree from Christian Medical College, Punjab, India and Master of Public Health from University of Kansas School of Medicine. Research interests include diet and physical activity behaviors, role of the environment in obesity and obesity prevention, especially among children and adolescents.Received MBBS from Allama Iqbal Medical College, Punjab University, Lahore, Pakistan and MPH from University of Kansas Medical Center. Research interests include smoking cessation, database design, implementation, data management and analysis, and use of information technology in health care settings.Director, Cancer Prevention, Control, and Population Sciences, Kansas Cancer Institute. Received MD/MPH from Tulane University and MS from Harvard School of Public Health. Research interests include disparities in healthcare; smoking cessation among underserved populations, specifically African Americans; diet, nutrition, obesity, and physical activity.  相似文献   
53.
2007年6月,美韩双方签署了《美韩自由贸易协定》。美韩之间为什么要签署该协定?该协定对两国国内分别产生了哪些影响?该协定为何至今没能获得美国国会的通过?针对上述问题,本文结合美国贸易政策理论,从体系、国家和社会三个层面对其进行了分析。《美韩自由贸易协定》的签署及其实施,在体系层面上将会为双方带来经济、政治和战略上的多重收益,而在社会层面上却产生了不同的反应。尽管由于国内经济困难和利益集团的掣制使得协定的通过还面临不小的阻力,但基于协定所蕴含的重要价值和两国政府对此认识的高度一致,协定获得通过只是时间上的问题。  相似文献   
54.
55.
This article discusses and illustrates organizational changes as initiated by ownership transition. It develops and elaborates three different pathways that organizations might follow through the process of transformation from government departments to state‐owned enterprises, and then to privately‐owned companies: the incremental, radical and reductive pathways. The research reported here is based on 11 case studies of New Zealand privatized companies. The pathway approach develops and extends existing models of transitional organizational trajectories, emphasizing the importance of antecedent conditions of organizational development, current environmental patterns and the strategic choices of the government and new owners.  相似文献   
56.
57.
58.
59.
We surveyed public school educators on the workplace incivility and workplace bullying they experienced and obtained their ratings of the organizational climate of the school. We used multilevel modeling to determine the effects of individual-level and school-level predictors. Ratings of school climate were significantly related to incivility and bullying. We found inverse relationships— the better the organizational climate, the lower the incivility and bullying. Several demographic variables of educators and two school-level variables were not significant predictors. Leaders who focus on improving organizational climate may find that their efforts benefit both student achievement and relationships among educators.  相似文献   
60.
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