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   17531篇
  免费   515篇
各国政治   714篇
工人农民   672篇
世界政治   1473篇
外交国际关系   620篇
法律   10409篇
中国共产党   2篇
中国政治   76篇
政治理论   3882篇
综合类   198篇
  2020年   221篇
  2019年   252篇
  2018年   325篇
  2017年   396篇
  2016年   421篇
  2015年   293篇
  2014年   337篇
  2013年   1737篇
  2012年   418篇
  2011年   433篇
  2010年   350篇
  2009年   390篇
  2008年   457篇
  2007年   475篇
  2006年   456篇
  2005年   407篇
  2004年   409篇
  2003年   430篇
  2002年   393篇
  2001年   685篇
  2000年   624篇
  1999年   514篇
  1998年   302篇
  1997年   252篇
  1996年   211篇
  1995年   213篇
  1994年   249篇
  1993年   228篇
  1992年   343篇
  1991年   373篇
  1990年   333篇
  1989年   358篇
  1988年   329篇
  1987年   345篇
  1986年   344篇
  1985年   341篇
  1984年   297篇
  1983年   327篇
  1982年   266篇
  1981年   243篇
  1980年   187篇
  1979年   248篇
  1978年   168篇
  1977年   149篇
  1976年   134篇
  1975年   126篇
  1974年   138篇
  1973年   123篇
  1972年   117篇
  1971年   97篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
101.
102.
Collaborative Environmental Management: What Roles for Government?   总被引:1,自引:0,他引:1  
  相似文献   
103.
104.
Criminal justice agencies are organized sequentially — “output” from one agency is “input” to the next — but most scholars argue that criminal justice is not a system in a theoretical sense. In this article, it is argued that general systems theory (GST) reveals important insights into criminal justice structures and functions. Specifically, it is argued that the criminal justice system processes “cases” rather than people, and that the common goal of criminal justice processing is to “close cases so that they stay closed.” It also is argued that processing capacity progressively declines, in that at each system point the subsequent agency cannot input as many cases as the previous agency can output. Each agency therefore experiences “backward pressure” to close cases in order to reduce input to the next agency. Overall, this article highlights that criminal justice agents and agencies are best understood as operating in the context of the larger whole, thus it is concluded that criminal justice is a system in the sense of general systems theory.  相似文献   
105.
106.
107.
108.
In order to cooperate with voluntary screening programs aimed at the surveillance of the HIV epidemic in Finland, we have studied medicolegal autopsies for HIV antibodies since 1986 using an enzyme immunoassay on postmortem sera. The investigation covered 47.4% and 39.2%, respectively, of all deaths under the age of 65 years in the metropolitan areas of Helsinki and Turku--two cities on the densely populated southern coast of Finland from which most HIV infections have thus far been detected. Nine HIV-positive cases (0.12%) were detected among the 7305 medicolegal autopsies tested in 1986 to 1990. This figure is higher than the prevalence of 0.01 to 0.03% in voluntary screening programs for the general population would suggest. Seven of our cases had previously tested positive, and two were previously unknown cases, indicating that people at high risk are clustered in the medicolegal autopsy series. Of the six cases in an early stage of infection, three committed suicide suggesting the importance of HIV-screening in suicide cases in tracing symptomless HIV carriers. Five of the cases were detected in 1990, a year when the number of new HIV infections had more than doubled compared to the previous two years. This suggests that testing of medicolegal autopsies as surrogate tests for the population gives useful information even in low-prevalence areas like Finland. Such testing has none of the ethical problems of many other back-up surveys, and may be particularly sensitive to early changes in epidemiology.  相似文献   
109.
The conflict and animosity that sometimes accompanies child custody disputes can give rise to the propagation of allegations of child sexual abuse. To characterize the magnitude of the problem, the present study attempted to determine whether and to what extent child sexual abuse allegations predominate in family court litigation. The entire one-year caseload of a county family court docket was systematically reviewed and coded. Methodical evaluation of 603 family court files yielded base rates of pertinent allegations and other information profiling the cases. The findings did not support the contention that sexual abuse allegations are commonplace in child custody disputes. Sexual abuse allegations were made in 2% of cases in which custody or access was contested and in only 0.8% of the cases overal. Implications of the findings for future research were discussed.The authors gratefully acknowledge the assistance of the Honorable William R. Campbell and Barbara Scott, Clerk of Court for the South Carolina Fifth Judicial Circuit, as well as the contributions of Angie Newton, Frank Robinson, and Kimberly Ellis in the data collection process.  相似文献   
110.
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