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   946篇
  免费   28篇
各国政治   38篇
工人农民   52篇
世界政治   93篇
外交国际关系   43篇
法律   471篇
中国政治   14篇
政治理论   261篇
综合类   2篇
  2021年   7篇
  2020年   20篇
  2019年   22篇
  2018年   26篇
  2017年   36篇
  2016年   29篇
  2015年   19篇
  2014年   25篇
  2013年   116篇
  2012年   32篇
  2011年   31篇
  2010年   19篇
  2009年   19篇
  2008年   28篇
  2007年   27篇
  2006年   36篇
  2005年   31篇
  2004年   24篇
  2003年   31篇
  2002年   25篇
  2001年   17篇
  2000年   18篇
  1999年   9篇
  1998年   21篇
  1997年   16篇
  1996年   8篇
  1995年   15篇
  1994年   17篇
  1993年   18篇
  1992年   15篇
  1991年   8篇
  1990年   18篇
  1989年   18篇
  1988年   16篇
  1987年   18篇
  1986年   10篇
  1985年   14篇
  1984年   10篇
  1983年   7篇
  1981年   11篇
  1980年   6篇
  1979年   4篇
  1978年   4篇
  1977年   6篇
  1976年   7篇
  1974年   5篇
  1973年   9篇
  1969年   8篇
  1967年   4篇
  1965年   7篇
排序方式: 共有974条查询结果,搜索用时 703 毫秒
901.
902.
States have implemented a number of strategies to provide services, pay providers, and control Medicaid spending. We test the effects of some differences in state Medicaid policies on program enrollees' access to and use of health care services. Logistic and OLS regression analyses of cross-sectional data indicate that these policies exert significant influences on enrollees' access to health services but have a weaker direct effect on their use of them. However, we find evidence that utilization is affected indirectly (through increased access) by state policy decisions. Somewhat surprisingly, Medicaid policies designed to contain costs by limiting utilization appear to affect neither access nor utilization. Medicaid enrollees have greater access to a private physician in states with higher physician reimbursement and additional Medicare insurance for their enrollees. Other nonpolicy variables with pronounced impacts on access to private office physicians include race and the availability of private insurance.  相似文献   
903.
904.
905.
906.
Mental health professionals have been concerned recently about their liability for the actions of patients in their outpatient practices. The history of suits against clinicians for negligent release of inpatients extends back several decades since before the Tarasoff decision. The authors suggest that the same consumerism/victims' rights trends that resulted in Tarasoff and its progeny are likely to rebound again on forensic clinicians and that such pressures are likely to add to other political and social pressures that already complicate the treatment of forensic inpatients. They present three cases to illustrate the dilemmas involved in the release of forensic patients and argue that clinicians must bear significant responsibility for their current plight because of overstated claims of capacities to predict and treat aggressive behavior.  相似文献   
907.
908.
909.
The Miller Forensic Assessment of Symptoms Test (M-FAST) was developed to provide evaluators with a brief, reliable, and valid screen for malingered mental illness. This study examined the initial validity of the M-FAST in a sample of 50 criminal defendants found incompetent to stand trial because of a mental illness. The M-FAST total score and items were compared with the Structured Interview of Reported Symptoms (SIRS) and the fake-bad indicators of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2). Results indicated good evidence of construct and criterion validity, demonstrated by t tests, receiver operating characteristics analysis, and high correlations between the M-FAST, SIRS, and the fake-bad indices on the MMPI-2. Tentative cut scores for the M-FAST total score and scales were examined and demonstrated high utility with the sample of criminal defendants incompetent to stand trial.  相似文献   
910.
As a first step in developing a molecular method for the individualization of marijuana samples, we evaluated a plant DNA extraction kit. The QIAGEN plant DNeasy method uses a spin column format for recovery of DNA and is effective for obtaining high molecular weight DNA from leaf, flower (bud), and seed samples of marijuana. The average DNA yield was 125-500 ng per 100 milligrams of fresh plant tissue. The recovered DNA was of polymerase chain reaction (PCR) quality as measured by the ability to generate reproducible amplified fragment length polymorphism (AFLP) profiles. AFLP is a technique used to create a DNA profile for plant varieties and is being applied to marijuana samples by the authors to link growers and distributors of clonal material. The QIAGEN plant DNeasy method was simple, efficient, and reproducible for processing small quantities of marijuana into DNA.  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