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   1634篇
  免费   88篇
各国政治   96篇
工人农民   161篇
世界政治   151篇
外交国际关系   97篇
法律   790篇
中国政治   15篇
政治理论   403篇
综合类   9篇
  2023年   13篇
  2022年   6篇
  2021年   16篇
  2020年   31篇
  2019年   56篇
  2018年   56篇
  2017年   79篇
  2016年   78篇
  2015年   60篇
  2014年   58篇
  2013年   278篇
  2012年   55篇
  2011年   65篇
  2010年   49篇
  2009年   55篇
  2008年   71篇
  2007年   62篇
  2006年   65篇
  2005年   60篇
  2004年   45篇
  2003年   47篇
  2002年   39篇
  2001年   21篇
  2000年   30篇
  1999年   24篇
  1998年   22篇
  1997年   21篇
  1996年   19篇
  1995年   11篇
  1994年   18篇
  1993年   16篇
  1992年   18篇
  1991年   17篇
  1990年   18篇
  1989年   15篇
  1988年   9篇
  1987年   7篇
  1986年   10篇
  1985年   23篇
  1984年   8篇
  1983年   13篇
  1982年   12篇
  1981年   6篇
  1980年   9篇
  1979年   5篇
  1978年   3篇
  1976年   3篇
  1974年   4篇
  1973年   3篇
  1965年   3篇
排序方式: 共有1722条查询结果,搜索用时 15 毫秒
181.
This paper compares the Uniform Crime Reports (UCRs) to the results of the National Crime Survey (NCS). Six Part I offenses are used to form the basis for comparison across twenty-six large American cities. The two data sources are conceptually comparable. Empirically, the NCS reveals significantly higher rates for all offenses but auto theft. The two sources are compatible in that the UCR revealed the same distributional pattern as the NCS. Thus it was concluded that the UCR provides an accurate indicator of the relative occurrence of criminal acts.  相似文献   
182.
183.
Lovell  Catherine 《Publius》1983,13(3):85-95
The CDBG program provides an excellent opportunity to studywhat local governments do to carry out national policy whenit is stated in general terms and they are left to their owndevices, and what they do differently when policy is interpretedin explicit regulations which are enforced. This article reviewswhat happened with two major legislative guidelines (low incometargeting and community participation) during the first sixyears of the CDBG program, including a period during which HUDinterpretations and enforcement varied greatly. It appears thatstrong federal enforcement caused a small increment in low incometargeting overall; but rigorous HUD direction and enforcement,combined with strong citizen participation, was necessary forsome jurisdictions to emphasize targeting. The research is pertinentin the present era of attempts toward major relaxation of federalgrant conditions and enforcement programs.  相似文献   
184.
185.
Anti-SLAPP (Strategic Lawsuits Against Public Participation) protections lead to changes in the dynamic and complex interactions between private citizens, environmental regulators and polluting entities. Direct impacts are legally significant, but if our interest is in environmental and enforcement outcomes, indirect effects are likely to be more important. Changes in perceived legal and regulatory threats impact the choices of many parties who are never involved in an actual SLAPP suit. This paper describes the expected direction and type of interactions when anti-SLAPP protections are enacted and discuss the conclusions that follow from research to date.  相似文献   
186.
187.
188.
ROTC retreat     
Joseph W. Scott 《Society》1969,6(10):47-52
  相似文献   
189.
The majority of studies evaluating the relationship between childhood sexual assault and subsequent sexual assault perpetration by men have been conducted retrospectively and with incarcerated populations. The present study seeks to improve on previous research by prospectively investigating the relationship between childhood sexual assault and subsequent perpetration of dating violence in adulthood in men. Although there is a significant relationship between childhood sexual abuse and history of sexual assault perpetration at baseline, prospective analyses indicate that childhood sexual assault is not predictive of perpetration during the follow-up period. The role of family factors, including parental conflict resolution, is implicated in subsequent sexual aggression. These results are supportive of the idea that the effects of childhood sexual abuse may be mediated by a variety of factors.  相似文献   
190.
The elemental composition and postfiring residues of several "lead-free" or "nontoxic" centerfire handgun ammunition types currently available to the general public were examined. Offerings from Winchester, Remington/UMC, Federal and Speer were obtained from retail sources in both .45 ACP and 9 mm when possible. A total of 112 postfiring residue samples (SEM pins) were collected at varying distances from the muzzle, at two distances from target and from the shooter's hands. An additional 20 samples were collected by direct ignition of primers. Qualitative determinations were carried out using scanning electron microscopy (SEM)/electron dispersive spectrometry (EDS) analysis. All types tested contained aluminum (Al), silicon (Si), copper (Cu), and zinc (Zn). Most contain traces of sulfur and calcium. Winchester WinClean and Remington LeadLess contained potassium as the principle ingredient. Federal BallistClean contained barium, while Speer Lawman CleanFire contained strontium. In the main, these compared favorably with manufacturers' MSDS publications and patents granted. The characterizations undertaken here will be of use to the forensic electron microscopist as these formulations gain popularity.  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