全文获取类型
收费全文 | 67184篇 |
免费 | 3002篇 |
专业分类
各国政治 | 4464篇 |
工人农民 | 2818篇 |
世界政治 | 5882篇 |
外交国际关系 | 3817篇 |
法律 | 30964篇 |
中国共产党 | 11篇 |
中国政治 | 747篇 |
政治理论 | 20507篇 |
综合类 | 976篇 |
出版年
2021年 | 406篇 |
2020年 | 1171篇 |
2019年 | 1519篇 |
2018年 | 1645篇 |
2017年 | 1933篇 |
2016年 | 2154篇 |
2015年 | 1826篇 |
2014年 | 2118篇 |
2013年 | 10529篇 |
2012年 | 1578篇 |
2011年 | 1695篇 |
2010年 | 1813篇 |
2009年 | 2036篇 |
2008年 | 1718篇 |
2007年 | 1685篇 |
2006年 | 1864篇 |
2005年 | 1753篇 |
2004年 | 1670篇 |
2003年 | 1460篇 |
2002年 | 1509篇 |
2001年 | 1426篇 |
2000年 | 1243篇 |
1999年 | 1123篇 |
1998年 | 1067篇 |
1997年 | 938篇 |
1996年 | 925篇 |
1995年 | 893篇 |
1994年 | 887篇 |
1993年 | 917篇 |
1992年 | 893篇 |
1991年 | 930篇 |
1990年 | 892篇 |
1989年 | 948篇 |
1988年 | 947篇 |
1987年 | 957篇 |
1986年 | 918篇 |
1985年 | 1005篇 |
1984年 | 900篇 |
1983年 | 932篇 |
1982年 | 864篇 |
1981年 | 819篇 |
1980年 | 636篇 |
1979年 | 647篇 |
1978年 | 581篇 |
1977年 | 509篇 |
1976年 | 476篇 |
1975年 | 395篇 |
1974年 | 414篇 |
1973年 | 422篇 |
1972年 | 370篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
371.
This methodological paper presents the utility of survival analysis methods to provide age adjustment in the analysis of domestic violence data. These methods improve the estimation of lifetime probability of domestic violence, improve identification of patterns of first victimization over the lifespan, and provide methods of testing risk factors for first victimization while adjusting for the respondents' age. Most importantly, these methods allow a new investigation of recall bias. Results suggest that lifetime probability of abuse may have been substantially underestimated in previous studies because of problems in recall/disclosure encountered by middle-aged women. 相似文献
372.
373.
374.
375.
376.
377.
378.
379.
R. Alan Thompson 《Journal of Police and Criminal Psychology》1997,12(1):61-69
On January 1, 1996, a new law took effect in Texas granting certain state citizens the privilege to carry a concealed handgun
on their person for the first time since 1871. As a result of this dramatic shift in state law, Texas is now among the growing
number of states across the nation who have adopted similar statutory provisions in one form or another. While at least one
empiricals study of citizen’s attitudes toward concealed handgun ownership was conducted prior to the law’s effective date,
no similar efforts were undertakens to assess the beliefs, perceptions and attitudes of the state’s law enforcement officers
about this important social policy. The present study was therefore undertaken in response to the lack of serious attention
which the issue of concealed handgun ownership among private citizens has received as it directly relates to the law enforcement
profession. Subjects for this study (N=327) were drawn from four Texas law enforcement agencies representing various organizational
sizes and missions. While the responses of officers who participated in the study indicate optimism about the law’s potential
to deter various types of crime, they also reflect a certain degree of concerns about concealed handgun ownership among private
citizens especially as this policy directly relates to perceive inadequacies in statemandated requirements and issues affecting
officer safety. 相似文献
380.