全文获取类型
收费全文 | 641篇 |
免费 | 17篇 |
专业分类
各国政治 | 38篇 |
工人农民 | 27篇 |
世界政治 | 16篇 |
外交国际关系 | 18篇 |
法律 | 467篇 |
中国政治 | 13篇 |
政治理论 | 77篇 |
综合类 | 2篇 |
出版年
2024年 | 38篇 |
2023年 | 151篇 |
2022年 | 2篇 |
2021年 | 37篇 |
2020年 | 7篇 |
2019年 | 3篇 |
2018年 | 15篇 |
2017年 | 10篇 |
2016年 | 14篇 |
2015年 | 9篇 |
2014年 | 8篇 |
2013年 | 59篇 |
2012年 | 15篇 |
2011年 | 22篇 |
2010年 | 22篇 |
2009年 | 23篇 |
2008年 | 19篇 |
2007年 | 32篇 |
2006年 | 13篇 |
2005年 | 10篇 |
2004年 | 17篇 |
2003年 | 4篇 |
2002年 | 6篇 |
2001年 | 5篇 |
2000年 | 10篇 |
1999年 | 10篇 |
1998年 | 6篇 |
1997年 | 5篇 |
1996年 | 6篇 |
1995年 | 4篇 |
1994年 | 9篇 |
1993年 | 5篇 |
1992年 | 8篇 |
1991年 | 9篇 |
1990年 | 4篇 |
1989年 | 5篇 |
1988年 | 4篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1984年 | 4篇 |
1983年 | 2篇 |
1982年 | 4篇 |
1981年 | 2篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1973年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1968年 | 1篇 |
1956年 | 1篇 |
排序方式: 共有658条查询结果,搜索用时 15 毫秒
11.
12.
Won S. Choi PhD Edward F. Ellerbeck MD Harsohena Kaur MD Niaman Nazir MBBS MPH Jasjit S. Ahluwalia MD MPH MS 《Journal of youth and adolescence》2006,35(6):969-975
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
13.
This paper applies the theory of team production to thelegislative process and tests the empiricalimplications of that theory using a uniquestate-level data set. Empirically testablehypotheses are derived from the theory,including predictions that free riding willincrease as chamber (or majority) sizeincreases, and that legislativeinstitutions (such as committee structureand staffing levels) can mitigate freeriding. The hypotheses are tested using apooled state-level data set developed fromthe session laws of twenty-three statelegislatures. The empirical results areconsistent with the major hypotheses. 相似文献
14.
Rogers A 《Development in Practice》2000,10(2):236-244
The ?Literacy comes second? model is an experimental approach that may hold greater promise for the future than the traditional literacy classes. The model works with groups that already exist within the community, such as religious groups, groups meeting for business, residents? groups (especially in urban areas), local government and political groups. The main characteristic of these groups is that, from the point of view of literacy, they are mixed groups consisting of men and women who have different levels of literacy skills. The group members share their skills and experiences; thus every member is valued. The justification for the approach comes from an adult learning theory, which states that adults learn best through doing things in their own lives for real. In general, the goal for this approach is that people will learn how to read and write and use literacy skills to achieve developmental tasks. 相似文献
15.
16.
17.
Student peer aggression has become an issue of considerable concern in schools and their surrounding communities. While a considerable volume of research and writing now exists on how this problem might be best managed, little has been written concerning the place of law in the management process. Nonetheless, in view of the long term effects of student peer aggression on both aggressors and aggressed, it behoves school administrators and teachers to have a sound awareness of the many issues associated with this form of behaviour. In particular it is advisable for staff to have a sound appreciation of the potential legal repercussions that can be the result of a failure to exercise an appropriate level of the duty of care owed to students in relation to peer aggression. This article examines recent research into student peer aggression in Australia and elsewhere. Reasons advanced to explain this form of behaviour are discussed, the characteristics of aggressors and aggressed examined, and consequences of student peer aggression explored. The legal remedies available are identified and discussed and measures needed to manage the problem are suggested. 相似文献
18.
19.
20.
Tahir MA Rogers C Alkhayyat M el-Gohary M Budowle B Balamurugan K 《Journal of forensic sciences》1999,44(6):1314-1315
This study demonstrates that the locus D1S80 is highly polymorphic in the Bahrainian population. There were 24 different D1S80 alleles and 51 distinct genotypes observed in 198 Bahrainians. There was one allele observed that was smaller than the 14 repeat allele. This data set meets the Hardy-Weinberg expectations (HWE) and could be a useful marker for parentage testing and forensic applications. 相似文献