全文获取类型
收费全文 | 457篇 |
免费 | 23篇 |
专业分类
各国政治 | 52篇 |
工人农民 | 41篇 |
世界政治 | 44篇 |
外交国际关系 | 22篇 |
法律 | 149篇 |
中国政治 | 4篇 |
政治理论 | 149篇 |
综合类 | 19篇 |
出版年
2023年 | 2篇 |
2022年 | 3篇 |
2021年 | 4篇 |
2020年 | 5篇 |
2019年 | 10篇 |
2018年 | 8篇 |
2017年 | 10篇 |
2016年 | 12篇 |
2015年 | 14篇 |
2014年 | 9篇 |
2013年 | 95篇 |
2012年 | 10篇 |
2011年 | 11篇 |
2010年 | 10篇 |
2009年 | 13篇 |
2008年 | 23篇 |
2007年 | 11篇 |
2006年 | 9篇 |
2005年 | 12篇 |
2004年 | 10篇 |
2003年 | 15篇 |
2002年 | 14篇 |
2001年 | 13篇 |
2000年 | 6篇 |
1999年 | 12篇 |
1998年 | 10篇 |
1997年 | 10篇 |
1996年 | 6篇 |
1995年 | 6篇 |
1994年 | 6篇 |
1993年 | 4篇 |
1992年 | 6篇 |
1991年 | 7篇 |
1990年 | 3篇 |
1989年 | 12篇 |
1988年 | 7篇 |
1987年 | 5篇 |
1986年 | 8篇 |
1985年 | 3篇 |
1984年 | 6篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1981年 | 4篇 |
1980年 | 6篇 |
1979年 | 4篇 |
1977年 | 3篇 |
1976年 | 3篇 |
1974年 | 3篇 |
1971年 | 2篇 |
1970年 | 3篇 |
排序方式: 共有480条查询结果,搜索用时 15 毫秒
371.
McGloin JM Pratt TC 《International journal of offender therapy and comparative criminology》2003,47(3):253-271
Drawing on the emerging life-course paradigm in criminological theory, this study examines the relationship between cognitive ability and delinquent behavior within a sample of inner-city youth. The results indicate that net of statistical controls, cognitive ability maintains a robust inverse relationship with the likelihood of the onset of delinquency, the early onset of delinquency, and the persistence of delinquency during the 18-year period covered by the dataset. Furthermore, cognitive ability mediates the effect of concentrated disadvantage on both the onset and early onset of delinquency. Overall, the results of this study suggest that cognitive ability is an important criminogenic risk factor that has important implications for both correctional interventions and the continued development of structural and multilevel theories of crime. 相似文献
372.
373.
374.
375.
376.
Sleep disturbance in adolescents: Sleep quality,sleep habits,beliefs about sleep,and daytime functioning 总被引:6,自引:0,他引:6
Kathleen Kirmil-Gray Jean R. Eagleston Elizabeth Gibson Carl E. Thoresen 《Journal of youth and adolescence》1984,13(5):375-384
This study examined the prevalence and correlates of sleep disturbance in adolescents. Two hundred seventy-seven 9th- and 10th-grade students completed a questionnaire on sleep quality, sleep habits, beliefs about sleep, and daytime mood and functioning. Based on their responses, subjects were classified as good sleepers (66%), occasional poor sleepers (23%), and chronic poor sleepers (11%). Occasional and chronic poor sleepers reported being significantly more depressed, without energy, tense, moody, and irritable and less rested and alert than good sleepers. They were also more likely to describe themselves negatively. However, poor sleepers were not consistently more tired than good sleepers. Rather, they tended to be least tired in the evening, the time when most good sleepers reported feeling tired. There were few differences in the sleep habits and beliefs about sleep of good and poor sleepers. All subjects reported shifts in bedtimes and waketimes from weekdays to weekends, with occasional and chronic poor sleepers showing a tendency toward greater shifts, a possible factor contributing to their sleep disturbance. Occasional and chronic poor sleepers also reported more observable behaviors and feelings of stress than good sleepers. The need for early intervention with particular attention to teaching adolescents about good sleep habits and the need for stable bedtimes and waketimes and the possibility of joint intervention on daytime stress and sleeping problems are discussed. 相似文献
377.
378.
379.
380.