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   1543篇
  免费   61篇
各国政治   77篇
工人农民   75篇
世界政治   133篇
外交国际关系   89篇
法律   743篇
中国共产党   1篇
中国政治   46篇
政治理论   430篇
综合类   10篇
  2021年   10篇
  2020年   25篇
  2019年   31篇
  2018年   56篇
  2017年   60篇
  2016年   46篇
  2015年   36篇
  2014年   54篇
  2013年   238篇
  2012年   43篇
  2011年   66篇
  2010年   42篇
  2009年   37篇
  2008年   58篇
  2007年   59篇
  2006年   68篇
  2005年   59篇
  2004年   60篇
  2003年   58篇
  2002年   36篇
  2001年   23篇
  2000年   21篇
  1999年   20篇
  1998年   21篇
  1997年   15篇
  1996年   13篇
  1995年   20篇
  1994年   22篇
  1993年   19篇
  1992年   13篇
  1991年   12篇
  1990年   10篇
  1989年   14篇
  1988年   15篇
  1987年   18篇
  1985年   16篇
  1984年   11篇
  1983年   13篇
  1982年   13篇
  1981年   7篇
  1979年   10篇
  1978年   14篇
  1977年   10篇
  1976年   11篇
  1975年   15篇
  1974年   11篇
  1973年   8篇
  1972年   11篇
  1969年   7篇
  1967年   8篇
排序方式: 共有1604条查询结果,搜索用时 15 毫秒
201.
202.
203.
204.
205.
This study explored the sense of community among women (n = 21) and women with children (n = 30) living in Oxford Houses, with emphasis on how the presence of children might affect the household. Sense of community did not vary between participants with more or less than three months residence. Residents reported very high levels of satisfaction with the home, possibly because of a ceiling effect of little room for increases in their sense of community over time. Participants reported that they were getting along with the children in the home, that mothers could count on babysitting help, and that the children had a positive effect on the household and their own recovery process. This effect did not differ between mothers and non-mothers, suggesting that non-mothers might view the children in the home with a sense of responsibility and sensitivity comparable to that of the mothers. Implications are discussed.  相似文献   
206.
In this paper, we review the result of research conducted in the context of a 13-year collaborative partnership between DePaul University and a community-based, self-run, residential substance abuse recovery program called Oxford House. This collaborative effort highlights several examples of the research and action activities fostering a positive alliance that benefited both the research team and the Oxford House community. It also proposed practical guidelines for developing effective action research collaboratives that may be helpful to others who desire to cultivate and maintain similar mutually beneficial partnerships; including such processes as the development of trust, respecting the personal experiences of the community members and group, commitment to serving the community, validating findings with organization members, and accountability.  相似文献   
207.
Utilizing a database of standards for forensic casework is a valuable resource. Undoubtedly, as more standards (and corresponding information about the specimens) are collected, there is a greater certainty of identification when a questioned and a known item cannot be distinguished after a series of analyses. The United States Secret Service and the Internal Revenue Service National Forensic Laboratory jointly maintain the largest known forensic collection of writing inks in the world, which is comprised of over 8500 ink standards collected worldwide, dating back to the 1920s. This study was conducted to evaluate the reliability of matching arbitrarily purchased pens with known inks from a database. One hundred pens were randomly obtained from a variety of sources and their respective ink compositions were compared with standards. Eighty-five of the inks were determined to be suitable for comparison utilizing optical examinations and thin-layer chromatography. Three of the inks did not match any of the specimens on record; one of these inks was similar to an ink from an identical brand of pen that was in the database, but had a modified formulation.  相似文献   
208.
The world was shocked when deadly riots broke out in Kosovoduring March 2004, after nearly five years of involvement andfinancial support by NATO and the United Nations. But, despitethe widespread nature of the rioting, violence did not spreadinto communities of return that had benefited substantiallyfrom direct international financial aid and interventions inthe same way that riots infected the wider province. This wasthe experience of communities assisted by at least two internationalNGOs, both of which used the ‘Do No Harm’ methodologyof enhancing ‘connectors’ while minimizing ‘dividers’between ethnic groups. American Refugee Committee's programmeis described and displacement data are presented. In those communitiesassisted by American Refugee Committee, 85 per cent of the returneesdid not flee during the riots. It is concluded that communitiesof return succeeded in thwarting violence because they had astake in peace.  相似文献   
209.
Historically, fatal injury monitoring and surveillance have relied on mortality data derived from death certificates (DC). However, problems associated with utilizing DC have been well documented. Recently, access to and utilization of hospital discharge data (HDD) have offered a new and important secondary source of data regarding in-hospital deaths. However, studies have shown that discrepancies between the HDD and the corresponding DC often exist. This discrepancy was especially evident when comparing HDD to the vital statistics data (VSD) for deaths by falls among those aged 65 and over in 19 states.This was a retrospective forensic review of elderly (age 65 and over) fall-associated fatalities (E880-E888) identified from HDD and VSD in Allegheny County, Pennsylvania, between 1997 and 1998. Seventy-seven cases were identified, with the original manner of death listed as natural (34), suicide (1), and accidental (42) on the DC. Following a forensic review of the cases, the manner of the death on the DC should have been changed from natural to accidental in 28% (n = 12) of the cases, representing an undercount in the VSD. Undercounts were due to a failure of clinicians to account for the significance of a fall event that contributed to subsequent pathology and death. In addition, in that 22% (n = 17) of the HDD fall-associated deaths, the fall did not contribute directly or sequentially to the underlying cause of death, thereby representing an overcount in the HDD.Based on these findings we recommend (1) elderly fall surveillance systems should only count HDD E-coded falls that demonstrate a serious traumatic injury which directly or subsequently results in death, (2) all in-hospital fall-associated deaths should be reported to and reviewed by coroner/Medical Examiner offices for determination of the cause and manner of death, and (3) physicians should be better educated in properly completing death certificates.  相似文献   
210.
Recent trends toward earlier retirement threaten future supplies of labor and the financial stability of many of our public and private pension systems. One of the few federal efforts now in place to reverse this trend has been the 1977 law outlawing mandatory retirement before age 70 for most American workers. This legislation by itself will have little effect on retirement patterns, because strong financial incentives to retire remain imbedded in the system. Changes in the Social Security Act enacted this year begin to recognize these incentives but are highly controversial and at best will not begin to go into effect until 1990. To be successful, efforts of policymakers to increase work at older ages must focus on the financial incentives at the heart of retirement plans rather than on merely attempting to weaken mandatory retirement constraints.  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