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   9402篇
  免费   320篇
各国政治   647篇
工人农民   398篇
世界政治   737篇
外交国际关系   392篇
法律   5389篇
中国共产党   2篇
中国政治   146篇
政治理论   1920篇
综合类   91篇
  2020年   123篇
  2019年   148篇
  2018年   208篇
  2017年   231篇
  2016年   238篇
  2015年   203篇
  2014年   207篇
  2013年   1153篇
  2012年   249篇
  2011年   325篇
  2010年   232篇
  2009年   254篇
  2008年   259篇
  2007年   245篇
  2006年   237篇
  2005年   206篇
  2004年   232篇
  2003年   250篇
  2002年   176篇
  2001年   363篇
  2000年   336篇
  1999年   297篇
  1998年   149篇
  1997年   110篇
  1996年   115篇
  1995年   101篇
  1994年   115篇
  1993年   104篇
  1992年   161篇
  1991年   158篇
  1990年   155篇
  1989年   141篇
  1988年   163篇
  1987年   160篇
  1986年   164篇
  1985年   149篇
  1984年   151篇
  1983年   161篇
  1982年   96篇
  1981年   72篇
  1980年   80篇
  1979年   104篇
  1978年   80篇
  1977年   69篇
  1976年   70篇
  1975年   62篇
  1974年   51篇
  1972年   53篇
  1971年   54篇
  1969年   54篇
排序方式: 共有9722条查询结果,搜索用时 46 毫秒
51.
52.
Observations of high velocity bloodspatter on adjacent objects   总被引:1,自引:0,他引:1  
In a recent homicide investigation, high velocity backspatter was observed on the sleeve cuff of the accused. These minute droplets were discovered only after microscopic examination and were limited in number. A study was initiated to determine if these were truly backspatter droplets or transferred blood produced from light contact with a bloody item. It was observed that the backspattered blood was primarily limited to contact or near contact shots. An exception was a shot into an already bloody surface. It was found that backspattered blood would deposit on the shooter's shirt sleeve irrespective of the weave pattern. Transferred blood was observed only on the fiber tops. This information was found to be useful in reconstruction of events in suicides as well as possible homicides.  相似文献   
53.
54.
This paper describes the governance system of Spanish listed firms in the early 1990's. Although the institutional setting of the Spanish Stock Exchanges differs little from other European national markets, we found important differences in several aspects of corporate governance. In particular, some of the standard mechanisms of control (e.g. boards and institutional shareholders) do not play an active role, whereas ownership is relatively concentrated. Moreover, power indices suggest that controlling blocs of large shareholders are very likely to form. We thus conclude that the ownership of shares is a pivotal mechanism in the governance of Spanish corporations.  相似文献   
55.
This paper examines the impact of a "disability rights model" on the emerging disability rights movement in Germany. Traditional German disability politics and activism are based on the expansion of welfare and special needs provisions rather than on equal rights and integration. Inspired by the 1990 Americans with Disability Act, German activists adopted a disability rights model and successfully worked toward the passage of a constitutional equality amendment in 1994 and ant-discrimination legislation in 2002. Using the literature on rights mobilization, this paper argues that German disability activists use rights talk to both support and contest culturally specific approaches to disability rights, equal treatment, and the role of the state in guaranteeing welfare rights. The globalization of disability rights should not be viewed as an imposition of American norms but as a more complex process of adaptation and cultural transformation that involves constructing locally legitimate approaches to disability rights with an American import.  相似文献   
56.
1. The indications such as the place of finding, the identification of clothes or other personal items, represent only the first step towards the identification of a corpse. 2. An identification based on medical data, other than dental, is often possible, more often than it is believed. 3. The forensic pathologist plays a double role in the case of such an identification: a) in the phase of the inquiry, he must contact the investigators and the families to explain his wishes and the different possibilities of identification. b) he must use the gathered information in the appropriate way. 4. It would be desirable to compose some statistical tables of the various medical elements useful for the identification (mutilations, surgical operations, etc...). We present six cases of identification in our practice.  相似文献   
57.
The psychological assessment battery is an integral part of the selection process used to select patrol officer applicants. Unlike all other procedures used in the selection process, the psychological assessment has not been adequately validated. The purpose of this study was an attempt to provide validation data for a psychological assessment battery. The battery consisted of the Nelson-Denny, Shipley-Hartford, MMPI, and the Motivational Analysis Test (MAT). Performance measures included various measures of training academy performance and field training performance. A stepwise regression and MANOVA/Discriminant Analysis indicated that the psychological tests did predict performance, although an exact predictive equation could not be developed due to the high intercorrelations between predictor variables. This research was sponsored in part by a grant from the School of Applied Arts and Technology, Southwest Texas State University.  相似文献   
58.
59.
In the forensic science laboratory, the recovery of spermatozoa from vaginal swabs, or vaginal cells from penile swabs, can help determine if sexual intercourse may have taken place. There are several methods used to recover spermatozoa and cells from the swabs before visualisation on a microscope slide and most of these methods use water. Phosphate buffered saline (PBS) is a non-toxic solution used in many biological laboratories. Unlike water, PBS prevents cells rupturing or shrivelling up due to osmosis. This study demonstrates that PBS can be used for the extraction of spermatozoa and cells from swabs and that PBS does not affect subsequent DNA profiling.  相似文献   
60.
Can participatory programs in transitioning countries increase the involvement of citizens beyond the level expected from individual-level characteristics, such as demographic traits, socioeconomic resources, and civic orientations? To answer this question, I examine the causes of participation in the Ugandan constitution-making process. Statistical analysis of a random sample survey of 820 citizens demonstrates that although individual-level factors play a role, many Ugandans participated because mobilizing agents pulled them into the process. I argue that programs to encourage active and equal participation will be most successful if they supplement weak indigenous institutions of mobilization and help all types of citizens to participate early on in the transition to democracy.  相似文献   
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