全文获取类型
收费全文 | 7869篇 |
免费 | 226篇 |
专业分类
各国政治 | 270篇 |
工人农民 | 298篇 |
世界政治 | 565篇 |
外交国际关系 | 273篇 |
法律 | 5194篇 |
中国政治 | 52篇 |
政治理论 | 1399篇 |
综合类 | 44篇 |
出版年
2020年 | 124篇 |
2019年 | 134篇 |
2018年 | 158篇 |
2017年 | 185篇 |
2016年 | 182篇 |
2015年 | 143篇 |
2014年 | 179篇 |
2013年 | 757篇 |
2012年 | 186篇 |
2011年 | 204篇 |
2010年 | 186篇 |
2009年 | 182篇 |
2008年 | 207篇 |
2007年 | 231篇 |
2006年 | 242篇 |
2005年 | 205篇 |
2004年 | 208篇 |
2003年 | 221篇 |
2002年 | 178篇 |
2001年 | 332篇 |
2000年 | 318篇 |
1999年 | 234篇 |
1998年 | 99篇 |
1997年 | 81篇 |
1996年 | 81篇 |
1995年 | 77篇 |
1994年 | 85篇 |
1993年 | 70篇 |
1992年 | 146篇 |
1991年 | 157篇 |
1990年 | 143篇 |
1989年 | 163篇 |
1988年 | 144篇 |
1987年 | 157篇 |
1986年 | 139篇 |
1985年 | 156篇 |
1984年 | 125篇 |
1983年 | 142篇 |
1982年 | 97篇 |
1981年 | 95篇 |
1980年 | 71篇 |
1979年 | 102篇 |
1978年 | 76篇 |
1977年 | 68篇 |
1976年 | 57篇 |
1975年 | 48篇 |
1974年 | 59篇 |
1973年 | 59篇 |
1971年 | 50篇 |
1970年 | 46篇 |
排序方式: 共有8095条查询结果,搜索用时 0 毫秒
1.
2.
3.
John P. Crank 《Crime, Law and Social Change》2003,39(1):39-67
This concept paper presents a theory of environmental scarcity developed byHomer-Dixon. Homer-Dixon developed a model to describe the consequences of scarcity for sub-national violence in third world countries. This paper hasfour interrelated purposes. First, it presents the model of scarcity developedby Thomas Homer-Dixon in 1999. Second, it assesses the way in which the scarcity model contextualizes criminal justice and criminology research, andby extension, how research in crime and justice processes can broaden the scarcity model. Third, it applies elements of the model to the United States,a goal that represents a generalization of the model from third-world to first-world settings. Fourth, it presents a particular case, the migrationof African-Americans from the rural South to urban centers in the 1950s and1960s and consequent inner-city violence in the 1960s, that displays manyelements of the environmental scarcity model. 相似文献
4.
Acute myoglobinuria as a fatal complication of heroin addiction 总被引:3,自引:0,他引:3
Y F Chan P K Wong T C Chow 《The American journal of forensic medicine and pathology》1990,11(2):160-164
A fatal case of myoglobinuria complicating heroin addiction is described. Clinically the patient had no overt symptoms of rhabdomyolysis. Pathologists should be alerted to this rare complication in heroin addicts who die of no apparent cause. The antimyoglobin immunoperoxidase technique is useful in confirming the diagnosis. 相似文献
5.
The conventional wisdom in criminology is that adult onset of offending is a rare event. Closer examination of the extant literature that use official records, however, reveals that an average of 50 percent of adult offenders initiate offending at age eighteen or older. Although criminological research has investigated late onset offending in adolescence, there is little research on adult onset offending and the correlates of adult offending. Using police contact and interview data from the 1942 and 1949 birth cohort data from Racine, WI, this study investigated the correlates of crime for adult onset and persistent offenders. The results show that employment is the only correlate to affect the probability of adult offending differently for previously delinquent and nondelinquent offenders. This article concludes by highlighting the neglect of research on adult offenders, specifically the large percentage of adult onset offenders, and calling for more research on this topic. 相似文献
6.
7.
8.
Jennifer P. Maxwell 《Journal of family violence》2003,18(5):281-293
This article examines the use of Eye Movement Desensitization and Reprocessing (EMDR) in helping a client address problems with persistent anxiety and a lack of self-esteem. During EMDR treatment, the client explored the dichotomous thinking that had plagued her since childhood, and correspondingly, the role of childhood physical and emotional abuse in her chronic feelings of inadequacy and anxiety. The client experienced significant improvement in her levels of anxiety and problems with self-esteem, both at the end of treatment and at 1-year follow up. Qualitative and quantitative data are utilized in this case study outlining the use of EMDR with a client diagnosed with dysthymic disorder. 相似文献
9.
Andrew P. Davidson 《Development in Practice》2007,17(1):39-50
The concern driving current debate on agricultural extension is increasingly that of how to help farmers learn how to deal with the complex world around them responsibly and profitably, in such a way that the extension worker is ancillary. This article seeks to deconstruct and provide a more reasoned assessment of agricultural extension services through a reflection on development paradigms, adult education, individual empowerment, and institutional pluralism. By calling into question the underlying ethical dimensions of agricultural extension, it is possible to develop an alternative paradigm and thereby generate new insights into it. The article concludes that the raison d'être of agricultural extension today must be to create an ethical basis which ensures that extension practices are more inclusive and thus responsive to the needs of farmers and other rural populations, integrating individual expectations into the wider socio-economic, cultural, political, and geographical environment. 相似文献
10.
P. Gill C.H. Brenner J.S. Buckleton A. Carracedo M. Krawczak W.R. Mayr N. Morling M. Prinz P.M. Schneider B.S. Weir 《Forensic Science International Supplement Series》2006,160(2-3):90-101
The DNA commission of the International Society of Forensic Genetics (ISFG) was convened at the 21st congress of the International Society for Forensic Genetics held between 13 and 17 September in the Azores, Portugal. The purpose of the group was to agree on guidelines to encourage best practice that can be universally applied to assist with mixture interpretation. In addition the commission was tasked to provide guidance on low copy number (LCN) reporting. Our discussions have highlighted a significant need for continuing education and research into this area. We have attempted to present a consensus from experts but to be practical we do not claim to have conveyed a clear vision in every respect in this difficult subject. For this reason, we propose to allow a period of time for feedback and reflection by the scientific community. Then the DNA commission will meet again to consider further recommendations. 相似文献