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   8009篇
  免费   96篇
各国政治   391篇
工人农民   268篇
世界政治   484篇
外交国际关系   369篇
法律   4925篇
中国共产党   2篇
中国政治   28篇
政治理论   1544篇
综合类   94篇
  2020年   89篇
  2019年   102篇
  2018年   142篇
  2017年   151篇
  2016年   193篇
  2015年   130篇
  2014年   152篇
  2013年   838篇
  2012年   222篇
  2011年   223篇
  2010年   173篇
  2009年   195篇
  2008年   231篇
  2007年   206篇
  2006年   207篇
  2005年   165篇
  2004年   177篇
  2003年   179篇
  2002年   177篇
  2001年   313篇
  2000年   282篇
  1999年   229篇
  1998年   90篇
  1997年   108篇
  1996年   83篇
  1995年   83篇
  1994年   97篇
  1993年   84篇
  1992年   158篇
  1991年   180篇
  1990年   157篇
  1989年   171篇
  1988年   149篇
  1987年   144篇
  1986年   165篇
  1985年   128篇
  1984年   127篇
  1983年   131篇
  1982年   80篇
  1981年   76篇
  1980年   59篇
  1979年   111篇
  1978年   66篇
  1977年   61篇
  1976年   57篇
  1975年   68篇
  1974年   82篇
  1973年   81篇
  1972年   69篇
  1971年   62篇
排序方式: 共有8105条查询结果,搜索用时 15 毫秒
281.
    
Abstract

Heterogeneity hinders our understanding of sexual violence; but does this problem extend to stranger rape and, if so, would the construction of homogeneous subtypes advance our understanding of this crime and aid criminal investigations and clinical practice? To answer these questions, 41 stranger rapists from the English high security hospitals were examined using version 3 of the Massachusetts Treatment Centre rapist typology (MTC:R3) and multidimensional scaling (MDS). The MTC:R3 suggested that sexual desire and opportunism were the primary motivations for these men, but that proportionately more psychopaths were violent and sadistic. In accordance with previous research, the men experienced problematic childhoods and displayed high rates of criminality and psychiatric morbidity in adulthood. However, MDS found that rapist histories and offence behaviours generally divide into sexual and violent themes. These results have important implications for theory, criminal investigations and clinical practice.  相似文献   
282.
283.
    
Witnessing intimate partner violence (IPV) is a frightening experience that affects children’s development and well-being. This study examines experiences of IPV from the perspective of children. Interviews with 14 children between 8 and 12 years of age were analyzed using a thematic method. Three main themes were identified: how children talked about abuse of their mother, described their own actions, and related to or handled memories of violence. Most children confirmed that their mother had been the victim of abuse, but had difficulties describing these experiences. Narratives were often incoherent and difficult to fully understand. In contrast, most of the children seemed to find it easier to describe their own actions during violence and conflicts. Not thinking about IPV was a strategy that aimed at reducing unwanted memories; it is also a strategy that may obstruct creating a narrative.  相似文献   
284.
The administration of President Barack Obama, like those of his immediate predecessors, is focused on trying to improve the quality of, and use of, performance data. The federal government has been pursuing performance‐informed budget reforms for more than 50 years. Most recently, the Bush administration reforms included the President’s Management Agenda and the Program Assessment Rating Tool (PART). The Obama administration reforms include: measuring the effects of the American Recovery and Reinvestment Act; reducing or eliminating poorly‐performing programs; setting a limited number of short‐term, high‐priority performance goals; and funding detailed program evaluations. The administration is taking a more agency‐driven approach than the Bush administration, but continues to find it challenging to move beyond production of performance data to its use. There should be opportunities to show how performance information can be used for decision making, given the change in the political climate and the needs to reduce spending and the deficit. Historically, there has been little appetite in the Congress for evidence‐based decision making. The administration, however, can continue to demonstrate how federal agencies can use performance information to more effectively manage programs.  相似文献   
285.
    
One important but often understudied area of research in public administration is the effect of e‐government on administrative discretion. This article examines e‐government factors that influence administrative discretion through a survey of local governments. The focus of this study is on Egyptian local governments, which are using e‐government to modernise public service delivery. Through a survey of administrative officials in these governments, this study found evidence that e‐government factors of collaboration and organisational change influenced administrative discretion. Other common factors noted in the literature such as size of the local government and demand by citizens for e‐government did not register an effect on administrative discretion. The results of this study imply that local governments should do more to enhance e‐government to reduce administrative discretion, especially in the area of increasing collaboration. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
286.
    
Regional trade institutions increase the local market size and attract higher foreign direct investment (FDI) inflows. The new economic geography provides the theoretical model for evaluating the spatial distribution of foreign capital within a multistate market. In this article, a fixed‐effects cross‐sectional time series regression examines 109 states from 1980‐2005. The study's findings are that multilateral regional trade institutions are more likely to attract FDI inflows, and the gains in FDI inflows are highest in states with the strongest regional economy. Las instituciones de comercio regional incrementan el tamaño del mercado local y atraen una cantidad mayor de inversión extranjera directa (IED). La nueva geografía económica provee un modelo teorético para evaluar la distribución física de capital extranjero dentro de un Mercado multinacional. Una regresión de serie temporal examina ciento nueve estados de 1980 a 2005. Instituciones de comercio regional multilaterales tienen más probabilidades de atraer flujos de IED y los estados con una economía regional más fuerte tienen los mayores beneficios por el flujo de IED.  相似文献   
287.
288.
    
Drunk driving is a serious threat to public safety. All available and appropriate tools for curbing this threat should be employed to their full extent. The handheld pre‐arrest breath test instrument (PBT) is one tool for identifying the alcohol‐impaired driver and enforcing drunk driving legislation. A set of data was evaluated (n = 1779) where the PBT instrument was employed in drunk driving arrests to develop a multivariate predictive model. When maintained and operated by trained personnel, the PBT provides a reasonable estimate of the evidential test result within the relevant forensic range (95% prediction interval:  ± 0.003 g/210 L). ROC analysis shows that a multivariate model for PBT prediction of the evidentiary alcohol concentration above versus below the legal limit of 0.08 g/210 L has excellent performance with an AUC of 0.96. These results would be of value in evidential hearings seeking to admit the PBT results in drunk driving trials.  相似文献   
289.
    
The extraction of DNA from human skeletal remains applied to forensic, and evolutionary studies do not exclude risks, which are to be evaluated when working with unique specimens that could be damaged or even destroyed. In the present study were evaluated several nondestructive methods for recovering DNA instead of the most currently used pulverization method. Three different procedures to access inside the dental pieces (occlusal perforation, cervical perforation, and cervical cut) have been compared with the aim of recovering as many cell remains as possible to carry out a DNA extraction. Given the DNA quantitation results, a method was proposed that consists of a cervical cut to facilitate the access to the pulp cavity and a subsequent filing of the root canals down to the apex of the dental root. This methodology allows the recovery of both mitochondrial and nuclear DNA, with the minimum deterioration for the dental pieces.  相似文献   
290.
    
  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