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   528篇
  免费   32篇
各国政治   18篇
工人农民   51篇
世界政治   69篇
外交国际关系   24篇
法律   285篇
中国政治   3篇
政治理论   108篇
综合类   2篇
  2024年   1篇
  2023年   9篇
  2022年   3篇
  2021年   7篇
  2020年   16篇
  2019年   20篇
  2018年   31篇
  2017年   24篇
  2016年   28篇
  2015年   23篇
  2014年   13篇
  2013年   73篇
  2012年   23篇
  2011年   14篇
  2010年   14篇
  2009年   29篇
  2008年   15篇
  2007年   12篇
  2006年   15篇
  2005年   25篇
  2004年   16篇
  2003年   23篇
  2002年   18篇
  2001年   16篇
  2000年   15篇
  1999年   9篇
  1998年   2篇
  1997年   5篇
  1996年   2篇
  1995年   3篇
  1994年   5篇
  1993年   6篇
  1992年   3篇
  1991年   4篇
  1990年   2篇
  1989年   3篇
  1988年   2篇
  1987年   3篇
  1986年   5篇
  1985年   3篇
  1984年   2篇
  1983年   3篇
  1982年   2篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
  1978年   3篇
  1977年   3篇
  1975年   2篇
  1973年   2篇
排序方式: 共有560条查询结果,搜索用时 111 毫秒
61.
62.
63.
This article reviews the current research on the effects of marital conflict, parental adjustment, custody, and access on children following divorce. Evidence from research demonstrates that significantly more adjustment problems confront children, especially boys, of divorced parents compared to those in never-divorced families. However, when assessed in years following the divorce, these children are functioning in normal limits and do not appear "disturbed," although the media report the opposite. The article discusses an important British study finding that marital conflict and not the divorce affect children and that divorce may mitigate some of the more destructive effects. The analysis of research dealing with joint custody brings together both current and ongoing studies. A surprising finding in one study was that mothers who share custody are more satisfied than those having sole custody and whose children see their father periodically. However, both groups expressed more satisfaction with their residential arrangement than did sole-custody mothers whose children had no paternal contact. Court-ordered joint custody was less satisfactory than when the parents voluntarily agreed to that arrangement, and spouses reporting high levels of marital conflict tended to do less well in joint custody arrangements than did families with less conflict.  相似文献   
64.
Although it is widely acknowledged that Chinese businesses are victims of extortion by Asian youth gangs, there is no reliable information to examine the patterns and social processes of the problem. This paper explores the structure of extortion and other forms of victimization based on surveys of (N=603) Chinese-owned businesses in three Chinatown neighborhoods in New York City. It focuses on the nature of Chinese crime groups, social contexts of gang extortion, social processes of victimization, and merchants' compliance or resistance to gang demands. Finally, the paper discusses the problems and prospects of Chinese criminality in America.Support for this research was provided by Grant 89-IJ-CX-0021 from the National Institute of Justice. The opinions are those of the authors and do not reflect the policies or views of the U.S. Department of Justice.  相似文献   
65.
The specificity of antisera raised against each of the prostaglandin series 190H E1/E2 and 190H F1 alpha/F2 alpha, produced in males, was evaluated by radioimmunoassay. Further, the ability of these antisera to detect semen specific prostaglandins in mixtures of body fluids was examined. Antisera directed against the 190H E1/E2 series cross-reacted with prostaglandin E1 and marginally with E2. Antisera raised to the 190H F1 alpha/F2 alpha series were, however, highly specific to the semen specific prostaglandins 190H F1 alpha/F2 alpha and 190H E1/E2. It was possible to detect picogramme quantities of contaminating 190H F1 alpha/F2 alpha on vaginal swabs taken up to 72 h after intercourse and on vaginal swabs stored at room temperature for up to 2 years. These prostaglandins were not detected on semen free vaginal swabs, in faecal material, saliva, urine or in a sample of human milk (stain). A limited study of casework material is also described. Detection of the 190H F series, as a group, has considerable potential in the identification of human semen at picogramme levels, eliminating the need for alternative chemical tests and extensive microscopic examination.  相似文献   
66.
This paper offers a rationale for expanding current efforts to support industrial innovation to encompass the important and unique contributions that the social sciences can make in this area. In order to provide a comprehensive overview of these contributions, the paper examines the role that social factors play in the process of technological innovations, the importance of social innovations, and the potential contributions of social science research to the diffusion of innovation as well as its importance in considering the broad social impacts of social innovations.  相似文献   
67.
The assumption that bureaucratic rationality and efficiency promote democracy is examined briefly from several theoretical perspectives. The efforts of the new conservativesu1 and new corporatists to impose private sector and business forms on the public sector as a way of achieving greater public sector productivity is reviewed. The contribution of this symposium and its specific articles to understanding the ethical and practical consequences of these efforts is presented.  相似文献   
68.
This article examines a program designed to provide a family court with a means of lessening the probability that youths on probation for shoplifting will return to criminal behavior. A single staff member within the family court screened possible participants, all of whom were defined as first-time shoplifting offenders and had been assigned to formal or informal probation. Each individual was invited to participate in a four-hour clinic, during which time the realities and possible consequences of shoplifting were explained. If they were able to successfully complete six months of supervised probation, then only the administrative record remained; the conviction itself was expunged. Over a period of nine months, a total of 154 juveniles were invited; however, only 100 actually took part in all facets of the program. A total of 30 clinic attendees and 14 nonparticipants were excluded from the present analysis, owing to missing data, or the fact that at the time of follow-up, they were legally classified as adults. The prior and subsequent court contacts of 110 subjects are reviewed. While less than 3% of either group had subsequent shoplifting arrests, nearly 26% of the program group and 35% of the nonparticipants were rearrested. Factors associated with long-term success and failure are examined. Possible reasons for these observations are discussed, with specific grounding in the shoplifting literature and the concepts of juvenile diversion and “net-widening.”  相似文献   
69.
An enzyme-linked immunosorbent assay (ELISA) has been developed for the detection of semen-specific 19-OH prostaglandin F1 alpha/F2 alpha (PGF). The assay can reliably and reproducibly detect as little as 2 pg 19-OH PGF/100 microliters and allows for the rapid analysis of large numbers of swab and stain extracts for the presence of semen.  相似文献   
70.
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