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   503篇
  免费   10篇
各国政治   22篇
工人农民   2篇
世界政治   23篇
外交国际关系   14篇
法律   409篇
中国政治   5篇
政治理论   36篇
综合类   2篇
  2019年   5篇
  2018年   7篇
  2017年   9篇
  2016年   6篇
  2015年   4篇
  2014年   9篇
  2013年   22篇
  2012年   6篇
  2011年   9篇
  2010年   6篇
  2009年   11篇
  2008年   9篇
  2007年   15篇
  2006年   15篇
  2005年   18篇
  2004年   8篇
  2003年   14篇
  2002年   10篇
  2001年   31篇
  2000年   20篇
  1999年   21篇
  1998年   5篇
  1997年   12篇
  1996年   3篇
  1995年   8篇
  1994年   3篇
  1992年   8篇
  1991年   11篇
  1990年   12篇
  1989年   16篇
  1988年   16篇
  1987年   9篇
  1986年   16篇
  1985年   16篇
  1984年   12篇
  1983年   4篇
  1982年   3篇
  1981年   15篇
  1980年   4篇
  1979年   7篇
  1978年   7篇
  1977年   8篇
  1976年   4篇
  1975年   10篇
  1974年   12篇
  1973年   11篇
  1972年   3篇
  1971年   4篇
  1970年   3篇
  1964年   2篇
排序方式: 共有513条查询结果,搜索用时 15 毫秒
21.
Since the 1980s, regulated markets and New Public Management have been introduced in the public sector across the world. How they have affected existing governance mechanisms such as self‐regulation and state regulation has remained largely unexplored, however. This article examines the origins and consequences of institutional layering in governing healthcare quality. Dutch health care, where a market‐based system has been introduced, is used as a case study. The results show that this market‐based system did not replace but modified existing institutional arrangements. As a result, hospitals have to deal with the fragmentation of quality demands. Using the concept of institutional layering, this study shows how different arrangements interact. As a consequence, the introduction of a certain policy reform will work out differently in different countries and policy sectors. Our ‘archaeological’ study in this layering can be seen as an example of how such incremental change can be studied in detail.  相似文献   
22.
Budgetary decision‐making is prone to myopia and to tunnel vision. Pension commitments suffer from both of these pathologies. In this case, we look closely at the State of Oregon's Public Employee Retirement System to show how the disclosure standards adopted by the Government Accounting Standards Board (GASB) help correct the fiscal vision of state and local governments and further conclude that postemployment commitments ought to be comprehensively examined in GASB's review of its accounting and reporting standards scheduled for 2008, ideally from the standpoint of present‐value budgeting.  相似文献   
23.
24.
25.
26.
This paper examined the development role of community banks in rural Nigeria by using the deposit mobilization capability and funding capacity in key sectors of the rural economy as yardsticks. By using a cluster sampling technique, it looks at the achievements of the community banking scheme initiative in terms of economic development. The scheme, established in 1991, has sustained itself and promoted rural development in the country. It is noted that communities have, for the first time, realized that they can advance their own economic fortunes. However, the scheme's performance as supporter of the agricultural sector has not been as well as expected, despite the fact that agriculture dominates Nigeria's rural economy. In view of this, non-banking activities are a welcome development since some of their approaches are proven to be knowledge enhancing and empowering for the rural population. Overall, community banks should attempt to strengthen non-banking approaches by collaborating more with self-help groups or nongovernmental organizations to be more empowering, results-oriented, and sustainable. Moreover, regulatory authorities should ensure that guidelines relate to credit application in terms of volume and sector allocation.  相似文献   
27.
Regular consumption of cannabis can easily be detected by examination of hair for tetrahydrocannabinol, cannabinol, and cannabidiol. Although several studies have demonstrated that after contamination with smoke or treatment with THC containing shampoos THC is not detectable, or only in small traces, the detection of 11-nor-9-carboxy-delta 9-tetrahydrocannabinol (THCCOOH) should be offered to prove the consumption and metabolisation of THC. Up to now this confirmation was only available using tandem MS techniques combined with negative chemical ionisation. A new method using a normal quadrupole GC/MS is described. The lack of expensive instruments has to be paid for by a costly and time consuming extraction and clean-up. After the sample has been digested by 2 M NaOH at 95 degrees C and the neutralised liquid has been extracted with a mixture of n-hexane and ethyl acetate the dried residue is reconstituted in acetonitrile-methanol-0.01 M sulfuric acid (49:21:30, v/v/v) and the cannabinoids separated by HPLC. Each fraction is collected over 1 min. Another extraction with n-hexane-ethyl acetate is followed by evaporation, derivatisation, and GC/MS determination. The calibration with THCCOOH spiked hair led to a LOD of 0.3 pg/mg and a LOQ of 1.1 pg/mg.  相似文献   
28.
Allele and genotype frequencies for the ten STR loci D3S1358, VWA, D16S539, D2S1338, D8S1179, D21S11, D18S51, D19S433, TH01, FGA were determined in a Swiss Caucasian population sample (n=206) using the AmpFISTR SGM Plus Amplification kit. Electrophoresis was carried out on an ABI PRISM CE 310 Genetic Analyzer instrument. Previously, allele frequencies were published for the 13 STR loci D3S1358, VWA, FGA, D8S1179, D21S11, D18S51, D5S818, D13S317, D7S820, THO1, TPOX, CSF1PO and D16S539 for the same samples (n=206) amplified with the AmpFISTR Profiler Plus and Cofiler PCR Amplification kits. Since the results for the eight loci D3S1358, VWA, FGA, D8S1179, D21S11, D18S51, THO1, D16S539 shared between the AmpFISTR SGM Plus, Profiler Plus and Cofiler PCR Amplification kits already are published, only the allele frequencies for the two STR loci D2S1338 and D19S433 are reported in this paper. The two loci meet Hardy-Weinberg expectations. In addition, there is little evidence for association of alleles among the 15 loci (amplified with the Profiler, Cofiler, and SGM Plus amplification kits). The allelic frequency data can be used in forensic analyses to estimate the frequency of a multiple STR locus DNA profile in the Swiss population.  相似文献   
29.
30.
The U.S. Office of Personnel Management (OPM) is issuing a final regulation amending the Federal Employees Health Benefits (FEHB) Acquisition Regulation (FEHBAR). This regulation provides additional contract cost principles and procedures for FEHB Program experience-rated contracts and is intended to clarify our requirements and enhance our oversight of FEHB carriers.  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