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   25467篇
  免费   1449篇
各国政治   1067篇
工人农民   1130篇
世界政治   1860篇
外交国际关系   806篇
法律   16983篇
中国共产党   2篇
中国政治   150篇
政治理论   4791篇
综合类   127篇
  2021年   147篇
  2020年   502篇
  2019年   560篇
  2018年   710篇
  2017年   751篇
  2016年   842篇
  2015年   644篇
  2014年   692篇
  2013年   2588篇
  2012年   645篇
  2011年   749篇
  2010年   704篇
  2009年   746篇
  2008年   730篇
  2007年   705篇
  2006年   731篇
  2005年   638篇
  2004年   631篇
  2003年   537篇
  2002年   602篇
  2001年   1006篇
  2000年   923篇
  1999年   702篇
  1998年   393篇
  1997年   307篇
  1996年   300篇
  1995年   290篇
  1994年   298篇
  1993年   294篇
  1992年   465篇
  1991年   478篇
  1990年   463篇
  1989年   455篇
  1988年   468篇
  1987年   421篇
  1986年   490篇
  1985年   477篇
  1984年   379篇
  1983年   358篇
  1982年   268篇
  1981年   258篇
  1980年   214篇
  1979年   322篇
  1978年   180篇
  1977年   159篇
  1976年   137篇
  1975年   131篇
  1974年   185篇
  1973年   139篇
  1972年   130篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
161.
The legislator, in the German Federal Republic, has opted for a specific legal solution in relation to the protection of the embryo. Carola Müller, in this article, describes this regulation as well as the reasons that have led to its adoption. The article finishes with an exposition of the existing social discussion in German society and the effect that the law has had.  相似文献   
162.
In the same way that larceny characterized much of twentieth century, fraud will likely characterize the twenty-first century. Larceny remains the most common oi all serious crimes, but fraud may overtake larceny as the crime of choice in the future, because of changes in our ownership, storage, and movement of property. Fraud involves purposely obtaining the property of another through deception, and its popularity as a crime of choice is growing. Entrusting property to the custody oi others, storing property at remote locations, and electronic movement of property are shown to be major changes in the way we treat property and increase opportunities for theft. The connection between fraud and many of the serious crimes of the twenty-first century are shown in the facts of recent cases. The motivation of thefl behind many frauds is also shown to be used to fund larger criminal objectives, such as illegal immigration and terrorism. The points of view expressed are those of the author and do not necessarily reflect the position or policies of the U.S. Department of Justice. Dr. Albanese is chief of the International Center at NIJ on leave from his position as professor of Government and Public Affairs at Virginia Commonwealth University.  相似文献   
163.
The link between resource deprivation and urban violence has long been explored in criminological research. Studies, however, have largely ignored the potential for resource deprivation in particular communities to affect rates of violence in others. The relative inattention is notable because of the strong theoretical grounds to anticipate influences that extend both to geographically contiguous areas and to those that, though not contiguous, share similar social characteristics. We argue that such influences—what we term spatial and social proximity effects, respectively—constitute a central feature of community dynamics. To support this argument, we develop and test theoretically derived hypotheses about spatial and social proximity effects of resource deprivation on aggregated and disaggregated homicide counts. Our analyses indicate that local area resource deprivation contributes to violence in socially proximate communities, an effect that, in the case of instrumental homicides, is stronger when such communities are spatially proximate. We conclude by discussing the implications of our findings for theories focused on community‐level social processes and violence, and for policies aimed at reducing crime in disadvantaged areas.  相似文献   
164.
Family lawyers are major beneficiaries of the reforms set out in the Family Law Education Reform Project (FLER) Report. This commentary from a veteran family law practitioner explores the needs of the family law bar for the training of law students in practical, interdisciplinary, client‐centered lawyering that goes beyond the traditional case method. I trace many of the current innovations evolving in family law practice and how FLER reforms will not only benefit law schools but also have a major impact in the courts and private practice sector.  相似文献   
165.
More than a decade after NAFTA (North American Free Trade Agreement) entered into force, the environmental effects of agricultural trade liberalization in Mexico are still controversial, emerging, and not fully understood. This paper contributes to the literature that aims to explore trends in input use in the agricultural sector in Mexico during the post-NAFTA period among both commercial/industrial and traditional/rainfed farmers, and examines the influence of the national and multilateral institutional framework on these outcomes. We decompose the post-NAFTA agricultural production data into scale, technique and composition effects to estimate the impact that trade liberalization has had on the use of fertilizer and land use, two key agricultural inputs for which reliable aggregate data is available. We conclude that among commercial farmers patterns of crop type specialization and significant technological improvements have led to some declines in fertilizer use but they have been offset by growth in fertilizer use associated with growing agricultural output. Among traditional farmers increased output and specialization in land-intensive grain crops are contributing to an increase in land under cultivation and technological improvements show the potential, but not yet not the strength, to counteract these effects. We analyse the environmental institutional framework and rural development plans, observing that institutional weaknesses have, in several instances, reduced the environmental benefit of technique and composition effects. We conclude with recommendations about how the Mexican agricultural sector might reap the environmental benefits of international agricultural trade.  相似文献   
166.
167.
This article reports the results of a study of the antecedents of long-term success in community mediation. Seventy-three mediation sessions were recorded and content analyzed. The participants were interviewed at two points: immediately after mediation and 4 to 8 months later. No relationship was found between the quality of the agreements—i.e., the extent to which they solved immediate problems- and long-term success as measured by compliance, improved relations between the parties, and the absence of new problems. On the other hand, joint problem solving by the disputants was related to complainant perceptions of improved relations with the other party. Also respondent perceptions that the mediation had been fair and that all the problems had come out were related to all aspects of long-term success in the eyes of the complainant. The latter results support a procedural justice analysis of mediation and underline the importance of mediator attention to the respondent.  相似文献   
168.
169.
170.
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