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   2031篇
  免费   43篇
各国政治   188篇
工人农民   83篇
世界政治   249篇
外交国际关系   176篇
法律   788篇
中国政治   24篇
政治理论   557篇
综合类   9篇
  2023年   8篇
  2022年   6篇
  2021年   9篇
  2020年   28篇
  2019年   38篇
  2018年   49篇
  2017年   58篇
  2016年   62篇
  2015年   43篇
  2014年   59篇
  2013年   353篇
  2012年   42篇
  2011年   63篇
  2010年   48篇
  2009年   71篇
  2008年   60篇
  2007年   65篇
  2006年   59篇
  2005年   50篇
  2004年   83篇
  2003年   57篇
  2002年   58篇
  2001年   36篇
  2000年   43篇
  1999年   34篇
  1998年   46篇
  1997年   43篇
  1996年   30篇
  1995年   39篇
  1994年   38篇
  1993年   46篇
  1992年   27篇
  1991年   25篇
  1990年   28篇
  1989年   25篇
  1988年   26篇
  1987年   27篇
  1986年   20篇
  1985年   25篇
  1984年   21篇
  1983年   15篇
  1982年   9篇
  1981年   15篇
  1980年   18篇
  1979年   10篇
  1978年   5篇
  1977年   10篇
  1976年   8篇
  1975年   6篇
  1973年   6篇
排序方式: 共有2074条查询结果,搜索用时 0 毫秒
831.
Taking a small farm colony on the Amazon frontier as a case study, this article examines the relationships among household assets, livelihood diversity and welfare. The findings show that: (1) few households diversified into non-agricultural income sources, but those that did also had agricultural incomes comparable to households primarily reliant on agriculture; (2) distinct household assets influence the extent of agricultural and non-agricultural diversity, implying that households with combinations of specific assets were best able to diversify their livelihoods, and (3) while specific types of household assets influence household welfare, livelihood diversity does not exert an additional effect on welfare. A key issue that emerges is that different arrays of assets are important for agricultural and non-agricultural diversity as well as for household welfare, implying that households need diverse assets for diverse livelihoods as well as better welfare.  相似文献   
832.
This article provides an introduction to the recent development of administrative ethics in the People's Republic of China, which embarked on the path of reform and opening to the outside world in 1978. The article also summarizes the issues discussed in the following articles. These include Chinese views of corruption since Tiananmen, the issue of whistleblowing, organizational ethics and bureaucratic corruption in Chinese schools, changing administrative ethos and corruption in reform China, and the process of professionalization and rhe resultant rebuilding of administrative ethics in post-Mao China.  相似文献   
833.
Banking systems are so complex, that it is essential for a court to fully understand the weaknesses to be able to assess the evidence when faced with dealing with disputed transactions involving ATMs and on-line banking. A bank will make every effort to restrict the amount of evidence it has to provide to prove its case, but it is for the judge to be aware of the characteristics of electronic evidence, so that a fair trail can be conducted. This article considers the burden of proof in banking cases, and argues that not every court has succeeded in providing a claimant with a fair trial of the evidence.  相似文献   
834.
Abstract: Despite the implementation of numerous safety devices in automobiles, vehicular occupant fatalities following collisions remain common. We reviewed all fatalities of vehicular occupants in New York City over a 5‐year period on whom autopsies were performed (437) to determine the incidence of neck injuries and correlate them with seat belt utilization; 26.5% had neck injuries (mild to severe) and only 10.3% of these occupants were confirmed to be wearing seatbelts. Of those that had documentation of seat belt utilization there were twice as many neck injuries in the unbelted group. We highlight two cases of submarining with severe neck injuries that were related to automatic 2‐point shoulder harness restraints without engagement of the lap belt.  相似文献   
835.
In his control balance theory Charles Tittle maintained that under favorable conditions unbalanced control ratios will lead to different forms of deviance. The type of deviance chosen is argued to depend on the degree of the control imbalance and the desirability the offense presents as a method of altering the imbalance. Utilizing a sample of homeless street youth this study examined if different types of control balance ratios were associated with hard and soft drug use. The findings revealed that control balance surpluses and control balance deficits were both related to hard and soft drug use but that these relationships were significantly stronger for hard drug use. Further, provocation and self-control were significant predictors of hard but not soft drug use while drug using peers predicted soft drug use but not hard drug use. Parental drug use, perceptions of risk, and values supportive of illegal behavior predicted both forms of drug use. Results are discussed and directions for further research and theoretical refinement are offered.  相似文献   
836.
Distinguishing between bloodstains caused by a spatter pattern or by expirated blood may be crucial to a forensic investigation. Expirated blood is likely to be contaminated with saliva but current techniques have limited sensitivity, especially with small bloodstains. We report that a PCR assay, designed to detect salivary bacteria, can amplify streptococcal DNA from saliva stains applied to fabrics for at least 62 days after seeding. Bacterial DNA was detected when 0.01 µl of saliva was present in the stain and the amplification was not affected by contamination with blood. These findings indicate that PCR amplification of salivary microbial DNA may have application in the identification of expirated bloodstains in forensic case-work.  相似文献   
837.
Research on predictors of Intimate Partner Violence (IPV) in Sub-Saharan Africa is contradictory, necessitating further investigation. This study sought the prevalence and predictors of IPV among women in Lagos, Nigeria. Questionnaire data from 934 women visiting an obstetrics and gynecology clinic in Lagos were analyzed using multivariable methods. The 1 year prevalence of IPV was 29%, with significant proportions reporting psychological (23%), physical (9%) and sexual (8%) abuse. In-access to information, women’s autonomy and contribution to household expenses independently predicted IPV. The findings provide new incites for IPV prevention in Lagos with implications for further research.  相似文献   
838.
839.
840.
This paper seeks to analyze the Syrian Crisis in 1957 and its impact on the Anglo-American reconciliation after the dispute over Suez in the previous year. The Middle East remained at the forefront of British and American continued regional instability and led to close allied cooperation over the perceived Soviet threat in Syria. This ensured that by the time of the Washington Conference in October 1957 both Macmillan and Eisenhower agreed that the Middle East required a joint Anglo-American policy to safeguard vital regional interests.  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